Flexible neon lamp strip without dark space

Abstract

The utility model relates to the technical field of lighting lamp strips, and discloses a flexible neon lamp strip without a dark space, which comprises a light blocking strip, a light-transmitting body, a flexible PCB (printed circuit board) and LED lamp beads, the light blocking strip is provided with a first groove body and a second groove body which are communicated along the extension direction of the light blocking strip, the light-transmitting body is embedded in the second groove body, the light-transmitting body is of a trapezoidal structure matched with the second groove body, and the flexible PCB is arranged in the second groove body. The flexible PCB is installed in the first groove body through an adhesive layer, a plurality of LED lamp beads are installed on the flexible PCB in an array mode, the LED lamp beads are located in the containing cavity, the light-transmitting body shields the side faces and the top faces of the LED lamp beads, and the side, located on the inner wall of the containing cavity and facing the top faces of the LED lamp beads, of the light-transmitting body is provided with step-shaped protruding structures which are sequentially and gradually reduced in the direction close to the LED lamp beads. Light emitted by the LED lamp beads can be evenly diffused to the whole light-emitting face of the light-transmitting body, it can be guaranteed that the whole light-emitting face of the light-transmitting body is free of light spots or dark areas, light waste can be effectively avoided, the light utilization rate can be effectively improved, and the lighting effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lighting strips, and in particular relates to a flexible neon strip without dark areas. Background Art

[0002] Neon light strips are a common type of decorative lighting strip, characterized by good flexibility, energy conservation, environmental protection, and easy installation. They are widely used in commercial advertising, urban landscape lighting, home decoration, and other fields. Existing neon light strips, such as the neon light strip disclosed in Chinese Patent Publication No. CN217441434U and the neon light structure and neon light strip disclosed in Chinese Patent Publication No. CN213955048U, have light-transmitting portions that are arc-shaped without light distribution treatment or parallel to the LED beads. Furthermore, because the LED beads on the flexible PCB are arranged at intervals, when the neon light strip emits light, the light is not evenly diffused across the entire light-emitting surface of the light-transmitting portion. The area directly above the LED beads is the brightest, resulting in alternating bright and dark spots and dark areas on the light-emitting surface of the light-transmitting portion of the strip, resulting in discontinuous illumination, poor light uniformity, and a less aesthetically pleasing lighting effect. Utility Model Content

[0003] In order to solve or partially solve the problems existing in the related art, the utility model provides a flexible neon light strip without dark areas. The flexible neon light strip without dark areas can make the light emitted by the LED lamp beads evenly diffuse to the entire luminous surface of the translucent body, ensuring that the entire luminous surface of the translucent body has no light spots or dark areas, effectively avoiding light waste, effectively improving light utilization, and improving lighting effects.

[0004] The present application provides a flexible neon light strip without dark areas, comprising a light-blocking strip, a light-transmitting body, a flexible PCB board, and LED lamp beads. The light-blocking strip is constructed with a first slot body and a second slot body connected along its extension direction. The second slot body is a trapezoidal structure that gradually expands outward in a direction away from the first slot body. The light-transmitting body is embedded in the second slot body and has a trapezoidal structure that matches the second slot body.

[0005] A accommodating cavity connected to the first trough body is constructed on one side of the light-transmitting body adjacent to the first trough body. The flexible PCB board is installed in the first trough body through an adhesive layer. A plurality of LED lamp beads are installed in an array on the flexible PCB board. The LED lamp beads are located in the accommodating cavity. The light-transmitting body covers the side and top surfaces of the LED lamp beads, and the light-transmitting body is located on the side of the inner wall of the accommodating cavity facing the top surface of the LED lamp beads. A stepped protrusion structure is constructed which gradually shrinks in the direction approaching the LED lamp beads.

[0006] In an optional scheme, the light-transmitting body includes an outer light-transmitting part, a side light-transmitting part, a first inner light-transmitting part, and a second inner light-transmitting part of an integrally formed structure. The outer light-transmitting part is arranged at the top opening of the second trough body and blocks the second trough body. The side light-transmitting part is arranged obliquely on the left and right sides of the LED lamp bead along the inner wall of the second trough body. The first inner light-transmitting part is arranged at a position on the inner side of the outer light-transmitting part facing the top surface of the LED lamp bead. The first inner light-transmitting part has a trapezoidal structure that gradually shrinks in the direction of approaching the LED lamp bead. The second inner light-transmitting part is arranged at a position on the side of the first inner light-transmitting part facing the center of the LED lamp bead toward the top surface of the LED lamp bead. The second inner light-transmitting part has a conical structure that gradually shrinks in the direction of approaching the LED lamp bead.

[0007] In an optional solution, the minimum width of the first inner light-transmitting portion is greater than the width of the LED lamp bead, and the maximum width of the second inner light-transmitting portion is less than the width of the LED lamp bead.

[0008] In an optional solution, the distance between the lowest point of the second inner light-transmitting portion and the top surface of the LED lamp bead is no greater than the thickness of the LED lamp bead.

[0009] In an optional solution, the light-blocking strip and the light-transmitting body are double-color extruded and integrally formed, the light-blocking strip is opaque silicone or plastic, and the light-transmitting body is transparent silicone or plastic mixed with a light diffuser.

[0010] In an optional solution, a transparent strip is embedded in the bottom wall of the light blocking strip and passes through the light blocking strip along the extension direction of the light blocking strip, and the thickness of the transparent strip is consistent with the thickness of the bottom wall of the light blocking strip. The transparent strip and the light blocking strip are extruded into one piece in two colors, and the transparent strip is transparent silicone or plastic.

[0011] In an optional solution, slots are symmetrically provided on the left and right outer side walls of the light shielding strip.

[0012] In an optional solution, the light-transmitting body is entirely located in the second groove of the light-blocking strip, and the upper end of the light-transmitting body is flush with the upper end of the light-blocking strip.

[0013] Beneficial effects of the utility model:

[0014] The utility model forms a lens structure covering the side and top surfaces of the LED lamp bead through the light-transmitting body, so that the light irradiated from the side of the LED lamp bead from the side of the LED lamp bead can be fully received and diffused through the side light-transmitting portion of the light-transmitting body, which can effectively avoid light waste, effectively improve light utilization, and enhance lighting effect;

[0015] The utility model gradually forms a two-stage diffusion effect on the light irradiated in the forward direction of the LED lamp bead through the first inner light-transmitting part and the second inner light-transmitting part which are in a stepped convex structure and gradually shrink, and evenly diffuses the light passing through the side light-transmitting part, the first inner light-transmitting part, the second inner light-transmitting part, and the light directly irradiated on the outer light-transmitting part through the accommodating cavity through the outer light-transmitting part, so that the light emitted by the LED lamp bead can be evenly diffused to the entire light-emitting surface of the light-transmitting body, effectively avoiding the situation where the area of ​​the light-transmitting body directly above the LED lamp bead is the brightest, and ensuring that the entire light-emitting surface of the light-transmitting body has no light spots or dark areas, the light emission is uniform and continuous, and the light emission effect is highly aesthetic.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the main cross-sectional assembly of a neon light strip in one embodiment of the present application;

[0019] Figure 2 This is a schematic exploded view of a main cross-section of a neon light strip in one embodiment of the present application.

[0020] Reference numerals in the figures:

[0021] Marking Description

[0022] 1-light-blocking strip, 101-first slot, 102-second slot, 103-card slot, 2-light-transmitting body, 201-accommodating cavity, 21-external light-transmitting portion, 22-side light-transmitting portion, 23-first inner light-transmitting portion, 24-second inner light-transmitting portion, 3-flexible PCB board, 4-LED lamp beads, 5-adhesive layer, 6-perspective strip. DETAILED DESCRIPTION

[0023] The specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application and not all embodiments. All other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0026] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0027] In this application, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0028] When existing neon light strips that have not been treated with light distribution are illuminated, the light cannot be evenly diffused to the entire luminous surface of the translucent part. There is a problem that light spots and dark areas are formed on the luminous surface of the translucent part of the light strip. The lighting is discontinuous, the light uniformity is poor, and the lighting effect is not very beautiful.

[0029] In response to the above problems, the present application makes improvements and innovations and proposes the following embodiments.

[0030] In one embodiment, see Figure 1 、 Figure 2 The present application provides a flexible neon light strip without dark areas, comprising a light-blocking strip 1, a light-transmitting body 2, a flexible PCB board 3, and LED lamp beads 4, wherein the light-blocking strip 1 is constructed with a first groove body 101 and a second groove body 102 connected along its extension direction, and the second groove body 102 is a trapezoidal structure that gradually expands outward in a direction away from the first groove body 101, and the light-transmitting body 2 is embedded in the second groove body 102, and the light-transmitting body 2 is a trapezoidal structure that matches the second groove body 102; specifically, the light-blocking strip 1 and the light-transmitting body 2 are extruded into one piece by two-color extrusion, the light-blocking strip 1 is opaque silicone or plastic, and the light-transmitting body 2 is transparent silicone or plastic mixed with a light diffuser, so that the light-blocking strip 1 and the light-transmitting body 2 form a seal with the flexible PCB board 3 and the LED lamp beads 4 to play a role in dust and water prevention, and at the same time, the light-transmitting body 2 can have good diffusion performance for the light emitted by the LED lamp beads 4.

[0031] A accommodating cavity 201 connected to the first trough body 101 is constructed on one side of the light-transmitting body 2 adjacent to the first trough body 101. The flexible PCB board 3 is installed in the first trough body 101 through an adhesive layer 5. A plurality of LED lamp beads 4 are installed in an array on the flexible PCB board 3. The LED lamp beads 4 are located in the accommodating cavity 201. The light-transmitting body 2 covers the side and top surfaces of the LED lamp beads 4, and the light-transmitting body 2 is located on the side of the inner wall of the accommodating cavity 201 facing the top surface of the LED lamp beads 4. A stepped protrusion structure is constructed that gradually shrinks in the direction approaching the LED lamp beads 4; specifically, the flexible PCB board 3 with the LED lamp beads 4 installed is extruded and pressed together with the light-blocking strip 1 and the light-transmitting body 2 through an extruder through the adhesive layer 5 to form a whole.

[0032] Specifically, in the present embodiment, the light-transmitting body 2 includes an outer light-transmitting portion 21, a side light-transmitting portion 22, a first inner light-transmitting portion 23, and a second inner light-transmitting portion 24 of an integrally formed structure, wherein the outer light-transmitting portion 21 is arranged at the top opening of the second trough body 102 and blocks the second trough body 102, and the side light-transmitting portion 22 is arranged obliquely on the left and right sides of the LED lamp bead 4 along the inner side wall of the second trough body 102; thus, the light-transmitting body 2 is used as the light-transmitting portion of the light strip, and a accommodating cavity 201 is provided in the light-transmitting body 2, so that the LED lamp bead 4 is placed through the accommodating cavity 201 and a cavity is formed between the LED lamp bead 4 and the solid part of the light-transmitting body 2, so that the light-transmitting body 2 forms a lens structure that covers the side and top surfaces of the LED lamp bead 4, thereby The side light-transmitting portion 22 of the light body 2 fully receives and diffuses the light irradiated laterally by the LED lamp bead 4 from the side of the LED lamp bead 4, which can effectively avoid the waste of the light irradiated laterally by the LED lamp bead 4 due to the light hitting the inner wall of the light-blocking strip 1 and not being irradiated out. In addition, by making the light-transmitting body 2 have a trapezoidal structure that matches the second groove body 102, the side light-transmitting portion 22 is consistent with the inclination direction of the second groove body 102, so that the side light-transmitting portion 22 can smoothly diffuse the light irradiated laterally by the LED lamp bead 4 along the inclination direction of the second groove body 102 to the outer light-transmitting portion 21, so that the light irradiated laterally by the LED lamp bead 4 can be fully irradiated out. In this way, light waste can be effectively avoided, light utilization can be effectively improved, and lighting effect can be improved.

[0033] In this embodiment, the first inner light-transmitting portion 23 of the light-transmitting body 2 is arranged at a position on the inner side of the outer light-transmitting portion 21 facing the top surface of the LED lamp bead 4, and the first inner light-transmitting portion 23 is a trapezoidal structure that gradually shrinks in the direction close to the LED lamp bead 4, and the second inner light-transmitting portion 24 is arranged at a position on the side of the first inner light-transmitting portion 23 facing the center of the LED lamp bead 4 toward the top surface of the LED lamp bead 4, and the second inner light-transmitting portion 24 is a conical structure that gradually shrinks in the direction close to the LED lamp bead 4; thus, a two-stage diffusion effect can be gradually formed on the light irradiated forward by the LED lamp bead 4 through the first inner light-transmitting portion 23 and the second inner light-transmitting portion 24 that are stepped convex structures and gradually shrink, wherein the light located at the center of the LED lamp bead 4 is initially diffused by the second inner light-transmitting portion 24, so that the stronger light located at the center of the LED lamp bead 4 is diffused to the first inner light-transmitting portion 2 3, and then further diffuses the light facing the top surface of the LED lamp bead 4 and the light that has been diffused initially through the first inner light-transmitting portion 23, so that the first inner light-transmitting portion 23 and the second inner light-transmitting portion 24 can evenly diffuse the light irradiated from the LED lamp bead 4 in the forward direction to the outer light-transmitting portion 21, and then evenly diffuse the light passing through the side light-transmitting portion 22, the first inner light-transmitting portion 23, the second inner light-transmitting portion 24, and the light directly irradiated on the outer light-transmitting portion 21 through the accommodating cavity 201 through the outer light-transmitting portion 21. In this way, the light emitted by the LED lamp bead 4 can be evenly diffused to the entire light-emitting surface of the light-transmitting body 2, which can effectively avoid light waste and effectively avoid the situation where the area of ​​the light-transmitting body 2 directly above the LED lamp bead 4 is the brightest, and can ensure that the entire light-emitting surface of the light-transmitting body 2 has no light spots or dark areas, the light is uniform and continuous, and the light-emitting effect is highly aesthetic.

[0034] In some embodiments, the minimum width of the first inner light-transmitting portion 23 is greater than the width of the LED lamp bead 4, so that the first inner light-transmitting portion 23 can fully receive and diffuse the light irradiated in the forward direction by the LED lamp bead 4; the maximum width of the second inner light-transmitting portion 24 is less than the width of the LED lamp bead 4, so that the second inner light-transmitting portion 24 can receive and diffuse the stronger light located at the center of the LED lamp bead 4 while allowing the light irradiated in the forward direction around the LED lamp bead 4 to directly irradiate the first inner light-transmitting portion 23, thereby effectively improving the diffusion uniformity of the light irradiated in the forward direction by the LED lamp bead 4 by the first inner light-transmitting portion 23 and the second inner light-transmitting portion 24.

[0035] In some embodiments, the distance between the lowest point of the second inner light-transmitting portion 24 and the top surface of the LED lamp bead 4 is no greater than the thickness of the LED lamp bead 4. In this way, when the light-blocking strip 1 and the light-transmitting body 2 of the light strip are pressed by hand, the light-transmitting body 2 will deform and the second inner light-transmitting portion 24 will be pressed against the LED lamp bead 4. At this time, the second inner light-transmitting portion 24 can be used to support the LED lamp bead 4 to resist the continued deformation of the light-transmitting body 2. There will be no sense of collapse when pressing the light strip, which can effectively improve the pressing texture of the light strip, thereby achieving the effect of improving the tactile feeling of the user when selecting the light strip. Among them, under normal circumstances, the lowest point of the second inner light-transmitting portion 24 should not contact the top surface of the LED lamp bead 4, so that the light strip can be reset after being pressed, so as to ensure the diffusion effect of the light-transmitting body 2 on the light of the LED lamp bead 4.

[0036] In some embodiments, a transparent strip 6 is embedded in the bottom wall of the light-shielding strip 1 and extends through the light-shielding strip 1 along its extension direction. The thickness of the transparent strip 6 is consistent with the thickness of the bottom wall of the light-shielding strip 1. The transparent strip 6 and the light-shielding strip 1 are extruded integrally and formed of transparent silicone or plastic. In this way, the transparent transparent strip 6 can function as a see-through window, allowing users and installers to view the preset cutting position of the flexible PCB board 3 inside the light-shielding strip 1 through the transparent strip 6, thereby facilitating cutting the light strip to an appropriate length according to actual installation requirements without damaging the light strip.

[0037] In some embodiments, the light shielding strip 1 has symmetrically provided with slots 103 on the left and right outer side walls, so that the light strip can be fixedly installed by cooperating with the slots 103 and the mounting rails.

[0038] In some embodiments, the entire light-transmitting element 2 is located within the second groove 102 of the light-blocking strip 1, and the upper end of the light-transmitting element 2 is flush with the upper end of the light-blocking strip 1. This not only makes the overall structure of the light-emitting side of the light strip smooth, but also makes the light strip simple and beautiful. On the other hand, it ensures that the edges of the light-transmitting element 2 are not blocked by the light-blocking strip 1, ensuring unobstructed light, and also ensures that the edges of the light-transmitting element 2 do not protrude from the light-blocking strip 1, thus avoiding glare, thereby effectively improving the lighting effect.

[0039] Finally, it should be noted that although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can make changes, modifications, replacements and variations to the above embodiments within the scope of the present invention, which should all be included in the scope of protection of this application.

Claims

1. A flexible neon light strip without dark areas, characterized by: The invention comprises a light-blocking strip (1), a light-transmitting body (2), a flexible PCB board (3), and an LED lamp bead (4); the light-blocking strip (1) is constructed with a first slot body (101) and a second slot body (102) connected to each other along its extension direction; the second slot body (102) is in a trapezoidal structure that gradually expands outward in a direction away from the first slot body (101); the light-transmitting body (2) is embedded in the second slot body (102); and the light-transmitting body (2) is in a trapezoidal structure that matches the second slot body (102); The light-transmitting body (2) is provided with a receiving cavity (201) on a side adjacent to the first trough body (101), the flexible PCB (3) being mounted in the first trough body (101) via an adhesive layer (5), a plurality of LED lamp beads (4) being mounted in an array on the flexible PCB (3), the LED lamp beads (4) being located in the receiving cavity (201), the light-transmitting body (2) covering the side and top surfaces of the LED lamp beads (4), and a stepped protrusion structure which gradually shrinks in a direction approaching the LED lamp beads (4) is provided on a side of the inner wall of the receiving cavity (201) facing the top surface of the LED lamp beads (4).

2. The flexible neon light strip without dark areas according to claim 1, characterized in that: The light-transmitting body (2) comprises an outer light-transmitting portion (21), a side light-transmitting portion (22), a first inner light-transmitting portion (23), and a second inner light-transmitting portion (24) of an integrally formed structure. The outer light-transmitting portion (21) is arranged at the top opening of the second trough (102) and blocks the second trough (102). The side light-transmitting portion (22) is arranged obliquely on the left and right sides of the LED lamp bead (4) along the inner side wall of the second trough (102). The first inner light-transmitting portion (23) is arranged at a position on the inner side of the outer light-transmitting portion (21) facing the top surface of the LED lamp bead (4). The first inner light-transmitting portion (23) is a trapezoidal structure that gradually shrinks in a direction approaching the LED lamp bead (4). The second inner light-transmitting portion (24) is arranged at a position on the side of the first inner light-transmitting portion (23) facing the center of the LED lamp bead (4) toward the top surface of the LED lamp bead (4). The second inner light-transmitting portion (24) is a conical structure that gradually shrinks in a direction approaching the LED lamp bead (4).

3. The flexible neon light strip without dark areas according to claim 2, characterized in that: The minimum width of the first inner light-transmitting portion (23) is greater than the width of the LED lamp bead (4), and the maximum width of the second inner light-transmitting portion (24) is less than the width of the LED lamp bead (4).

4. The flexible neon light strip without dark areas according to claim 2 or 3, characterized in that: The distance between the lowest point of the second inner light-transmitting portion (24) and the top surface of the LED lamp bead (4) is no greater than the thickness of the LED lamp bead (4).

5. The flexible neon light strip without dark areas according to claim 1 or 2, characterized in that: The light-blocking strip (1) and the light-transmitting body (2) are formed as a single piece by double-color extrusion; the light-blocking strip (1) is made of opaque silicone or plastic, and the light-transmitting body (2) is made of transparent silicone or plastic mixed with a light diffusing agent.

6. The flexible neon light strip without dark areas according to claim 1, characterized in that: A perspective strip (6) is embedded in the bottom wall of the light-blocking strip (1) and passes through the light-blocking strip (1) along the extension direction of the light-blocking strip (1), and the thickness of the perspective strip (6) is consistent with the thickness of the bottom wall of the light-blocking strip (1). The perspective strip (6) and the light-blocking strip (1) are formed as a whole by double-color extrusion, and the perspective strip (6) is transparent silicone or plastic.

7. The flexible neon light strip without dark areas according to claim 1, characterized in that: The left and right outer side walls of the light blocking strip (1) are symmetrically provided with card slots (103).

8. The flexible neon light strip without dark areas according to claim 1, characterized in that: The light-transmitting body (2) is entirely located in the second groove (102) of the light-blocking strip (1), and the upper end of the light-transmitting body (2) is flush with the upper end of the light-blocking strip (1).

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