LED lamp bead
By setting a reflective component in the LED bead to form a reflection angle with the light-emitting chip, the problem of increased height caused by the lens is solved, and the miniaturization and thinning of the LED bead are achieved.
Patent Information
- Application Number
- CN202422446111.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-10-10
AI Technical Summary
Existing LED chips require the addition of lenses to reduce the irradiation angle, which increases the product height and fails to meet the requirements for miniaturization and thinning.
By incorporating a reflective component into the LED chip, the reflection angle can be altered by creating a reflection angle between the reflective component and the light-emitting chip, thus eliminating the need to add a lens above the light-emitting chip.
This allows for changing the irradiation angle without increasing the height, which helps to miniaturize and thinner LED chips.
Smart Images
Figure CN223503340U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of indicator light technology, and in particular to an LED light bead. Background Technology
[0002] In practical applications, the emission angle of LED chips directly affects their display effect. The half-intensity angle (WIS) of existing LED chips is generally 120 degrees. To reduce the emission angle, a lens is usually added to the top of the LED chip to change the light path and converge the emission angle. However, adding a lens to the top of the LED chip increases the overall height of the product, failing to meet the requirements for miniaturization and thinning of LED chips. Utility Model Content
[0003] This utility model provides an LED lamp bead to solve the problem that current LED lamp beads with angle convergence function are too large and cannot meet the requirements of miniaturization and thinning.
[0004] This utility model provides an LED lamp bead, including a bracket, a light-emitting chip, and a reflective component; the light-emitting chip and the reflective component are disposed on the bracket; the reflective component is disposed opposite to the light-emitting chip, and at least one reflection angle is formed between the reflective component and the light-emitting chip.
[0005] Preferably, the reflective assembly includes at least one reflector;
[0006] At least one of the reflective elements is disposed around the light-emitting chip, and each of the reflective elements forms at least one reflection angle with the light-emitting chip.
[0007] Preferably, the reflective assembly includes at least one set of reflective units, and each set of reflective units includes two reflectors;
[0008] In each set of reflective units, two reflectors are symmetrically arranged relative to the light-emitting chip.
[0009] Preferably, each of the reflectors includes at least two reflective surfaces, and the at least two reflective surfaces have different reflection angles with the light-emitting chip.
[0010] Preferably, the reflector is a prismatic reflector;
[0011] The first side of the prismatic reflector is connected to the bracket, and at least one side of the prismatic reflector other than the first side is a reflective surface.
[0012] Preferably, the reflector is any one of a metal reflector, a silicon oxide reflector, a coated silicon wafer reflector, or a coated glass reflector.
[0013] Preferably, the bracket includes a support housing and metal pins;
[0014] The support housing is provided with a mounting groove, and the metal pin cooperates with the mounting groove to form an accommodating cavity;
[0015] The light-emitting chip and the reflective component are disposed within the accommodating cavity, and the light-emitting chip is connected to the metal pin.
[0016] Preferably, the light-emitting chip further includes bonding metal wires;
[0017] One end of the bonding wire is connected to the light-emitting chip, and the other end of the bonding wire is connected to the metal pin.
[0018] Preferably, the accommodating cavity is filled with a protective encapsulation component;
[0019] The encapsulation protective component covers the light-emitting chip and the reflective component.
[0020] The LED lamp beads provided in this embodiment of the utility model have a reflective component set on the bracket. This eliminates the need to add an additional lens above the light-emitting chip, thereby changing the irradiation angle of the LED lamp beads. This avoids the problem of the LED lamp beads becoming taller due to the addition of a lens, and is beneficial for the miniaturization and thinning of the LED lamp beads. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the LED bead structure in one embodiment of the present invention;
[0023] Figure 2 This is a schematic diagram of the structure of the reflector in one embodiment of the present invention.
[0024] In the figure: 1. Bracket; 11. Support housing; 12. Metal pin; 2. Light-emitting chip; 3. Reflective component; 31. Reflector; 311. Reflective surface; 4. Bonding wire; 5. Accommodating cavity. Detailed Implementation
[0025] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0026] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] This utility model embodiment provides an LED lamp bead, such as... Figure 1 As shown, it includes a support 1, a light-emitting chip 2, and a reflective component 3; the light-emitting chip 2 and the reflective component 3 are disposed on the support 1; the reflective component 3 is disposed opposite to the light-emitting chip 2, and at least one reflection angle is formed between the reflective component 3 and the light-emitting chip 2.
[0029] As an example, the LED bead includes a bracket 1, a light-emitting chip 2, and a reflective component 3. The light-emitting chip 2 and the reflective component 3 are disposed on the bracket 1. Specifically, the light-emitting chip 2 and the reflective component 3 can be fixed to the bracket 1 by means of silicone, epoxy resin, or conductive adhesive or solder paste, etc. The reflective component 3 is disposed opposite to the light-emitting chip 2 and is used to reflect the reflected light emitted by the light-emitting chip 2, so that the reflective component 3 can form at least one reflection angle for the emitted light from the light-emitting chip 2. Specifically, the reflective component 3 may include at least one reflector 31, each of which can form a reflection angle on the light emitted from the light-emitting chip 2. That is, each reflector 31 can reflect the light emitted from the light-emitting chip 2 to the outside of the bracket 1 according to a preset reflection angle, thereby changing the irradiance angle of the LED beads. Alternatively, the reflective component 3 may include at least one reflective surface 311, each of which, when arranged opposite to the light-emitting chip 2, can form a reflection angle on the light emitted from the light-emitting chip 2. That is, each reflective surface 311 can reflect the light emitted from the light-emitting chip 2 to the outside of the bracket 1 according to a preset reflection angle, thereby changing the irradiance angle of the LED beads.
[0030] In this example, by setting a reflective component 3 in the LED bead, the irradiation angle of the LED bead can be changed without adding an additional lens above the light-emitting chip 2. This avoids the problem of the LED bead becoming taller due to the addition of a lens, which is beneficial for the miniaturization and thinning of the LED bead.
[0031] In one embodiment, the reflective component 3 includes at least one reflector 31; the at least one reflector 31 is disposed around the light-emitting chip 2, and each reflector 31 forms at least one reflection angle with the light-emitting chip 2.
[0032] As an example, the reflective component 3 includes at least one reflector 31. For example, the reflective component 3 may include four reflectors 31. The four reflectors 31 are arranged around the light-emitting chip 2. Each reflector 31 includes a reflective surface 311. Each reflective surface 311 is arranged opposite to the light-emitting chip 2 and can reflect the emitted light from the light-emitting chip 2 at a certain angle, thereby changing the light path of the emitted light from the light-emitting chip 2 and thus changing the irradiation angle of the LED beads.
[0033] In one embodiment, the reflective component 3 includes at least one set of reflective units, each set of reflective units including two reflective elements 31; the two reflective elements 31 in each set of reflective units are symmetrically arranged relative to the light-emitting chip 2.
[0034] As an example, the reflective component 3 includes at least one set of reflective units, each set of reflective units including two reflective elements 31. The two reflective elements 31 in each set of reflective units are symmetrically arranged with respect to the light-emitting chip 2. Furthermore, the reflective units are rotationally symmetrical about the light-emitting chip 2 so that each reflective element 31 is evenly arranged around the light-emitting chip 2, making the light reflection effect more uniform and comprehensive.
[0035] In one embodiment, each reflector 31 includes at least two reflective surfaces 311, and the different reflective surfaces 311 have different reflection angles with the light-emitting chip 2.
[0036] As an example, each reflector 31 includes at least two reflective surfaces 311. In a single reflector 31, any two reflective surfaces 311 reflect the emitted light from the light-emitting chip 2 at different angles. When different reflective surfaces 311 of a reflector 31 are positioned opposite the light-emitting chip 2, their effects on changing the irradiance angle of the LED beads are also different. When assembling the reflector 31 onto the bracket 1, the effect on changing the irradiance angle of the LED beads can be adjusted by positioning different reflective surfaces 311 of the reflector 31 opposite the light-emitting chip 2. By providing different reflective surfaces 311 in the reflector 31, the light focusing effect can be switched during assembly by switching the reflective surfaces 311, which is beneficial for adapting to various lighting angle requirements and reducing production costs.
[0037] In one embodiment, the reflector 31 is a prismatic reflector; the first side of the prismatic reflector is connected to the bracket 1, and at least one side of the prismatic reflector other than the first side is a reflective surface 311.
[0038] As an example, the reflector 31 can be a prismatic reflector; the first side of the prismatic reflector is connected to the bracket 1, and at least one side other than the first side of the prismatic reflector is a reflective surface 311. When the prismatic reflector contains two or more reflective surfaces 311, the reflection angle formed by different reflective surfaces 311 on the emitted light from the light-emitting chip 2 is different. Therefore, by arranging different reflective surfaces 311 in the prismatic reflector opposite to the light-emitting chip 2, the irradiation angle of the LED beads can be adjusted to change the effect. The prismatic reflector has a simple shape, is easy to manufacture, and helps to reduce production costs.
[0039] In one embodiment, the reflector 31 is any one of a metal reflector, a coated silicon wafer reflector, a silicon oxide reflector, or a coated glass reflector.
[0040] As an example, the reflector 31 is made of metal or silicon oxide or coated silicon wafer or coated glass so that the surface of the reflector 31 has a light reflection effect.
[0041] In one embodiment, the bracket 1 includes a support housing 11 and metal pins 12; the support housing 11 is provided with a mounting groove, and the metal pins 12 cooperate with the mounting groove to form a receiving cavity 5; the light-emitting chip 2 and the reflective component 3 are disposed in the receiving cavity 5, and the light-emitting chip 2 is connected to the metal pins 12.
[0042] As an example, the bracket 1 includes a plastic support housing 11 and a metal pin 12. The metal pin 12 is formed by stamping, and the support housing 11 is combined with the metal pin 12 by injection molding to form an accommodating cavity 5. The reflective component 3 can be fixed to the metal pin 12 by silicone, epoxy resin, etc., and the light-emitting chip 2 can be fixed to the metal pin 12 by conductive adhesive or solder paste, etc., to form an electrical connection with the metal pin 12.
[0043] In one embodiment, the LED lamp bead further includes a bonding wire 4; one end of the bonding wire 4 is connected to the light-emitting chip 2, and the other end of the bonding wire 4 is connected to the metal pin 12.
[0044] As an example, the LED chip also includes a bonding wire 4. The LED chip includes two metal pins 12, one end of the bonding wire 4 is connected to an electrode of the light-emitting chip 2, and the other end of the bonding wire 4 is connected to a metal pin 12.
[0045] In one embodiment, the mounting groove 5 is filled with a protective encapsulation component; the protective encapsulation component covers the light-emitting chip 2 and the reflective component 3.
[0046] As an example, a protective encapsulation component can be filled and installed in the mounting groove 5 by injection molding. The material of the protective encapsulation component can be silicone, silicone resin, epoxy resin, etc. The protective encapsulation component covers the light-emitting chip 2 and the reflective component 3. When the protective encapsulation component is set in the mounting groove 5, the top of the protective encapsulation component should not protrude from one side of the bracket 1 body, so that the size of the LED bead is not affected by the protective encapsulation component.
[0047] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.
Claims
1. An LED lamp bead, characterized in that, Includes a support frame, a light-emitting chip, and a reflective component; The light-emitting chip and the reflective component are mounted on the bracket; The reflective component is disposed opposite to the light-emitting chip, and at least one reflection angle is formed between the reflective component and the light-emitting chip; The reflective component includes at least one reflective element; at least one reflective element is disposed around the light-emitting chip, and each reflective element forms at least one reflection angle with the light-emitting chip; Each of the reflectors includes at least two reflective surfaces, and the reflector is a prismatic reflector; the first side of the prismatic reflector is connected to the bracket, and at least one side other than the first side of the prismatic reflector is a reflective surface, and the reflection angle between the different reflective surfaces and the light-emitting chip is different.
2. The LED lamp bead according to claim 1, characterized in that, The reflective assembly includes at least one set of reflective units, and each set of reflective units includes two reflective elements. In each set of reflective units, two reflectors are symmetrically arranged relative to the light-emitting chip.
3. The LED lamp bead according to claim 1, characterized in that, The reflector is any one of a metal reflector, a silicon oxide reflector, a coated silicon wafer reflector, or a coated glass reflector.
4. The LED lamp bead according to claim 1, characterized in that, The bracket includes a supporting housing and metal pins; The support housing is provided with a mounting groove, and the metal pin cooperates with the mounting groove to form an accommodating cavity; The light-emitting chip and the reflective component are disposed within the accommodating cavity, and the light-emitting chip is connected to the metal pin.
5. The LED lamp bead according to claim 4, characterized in that, The LED beads also include bonding metal wires; One end of the bonding wire is connected to the light-emitting chip, and the other end of the bonding wire is connected to the metal pin.
6. The LED lamp bead according to claim 4, characterized in that, The accommodating cavity is filled with a protective encapsulation component; The encapsulation protective component covers the light-emitting chip and the reflective component.