LED lamp bead with protection frame and LED lamp strip

Abstract

The utility model provides an LED lamp bead with a protection frame and an LED lamp strip, and the LED lamp bead comprises a support which comprises a first side and a second side which are opposite to each other, and is provided with a through hole penetrating through the first side and the second side; the heat dissipation plate is fixed to the first side of the support and blocks the first end of the through hole, and the heat dissipation plate and the through hole of the support are matched to form a concave cavity; the at least one light-emitting chip is arranged on the heat dissipation plate and is positioned in the concave cavity; the optical lens body is fixed on the second side of the bracket and blocks the second end of the through hole; and the protection frame is fixed on one side, facing the bracket, of the heat dissipation plate, is sleeved on the bracket and is attached to the outer wall of the bracket, and at least part of the protection frame extends out of the second side of the bracket. The protection frame can protect the optical lens body and prevent the optical lens body from being subjected to external collision or extrusion, and in the installation, transportation or use process of the lamp bead, the protection frame surrounds the optical lens body and provides a physical barrier, so that the overall structural safety and reliability of the LED lamp bead are improved, and the overall damage probability of the LED lamp bead is reduced.

Description

Technical Field

[0001] This application belongs to the field of lighting technology, and in particular relates to an LED light bead and an LED light strip with a protective frame. Background Technology

[0002] In LED applications, the optical lens is a key component that effectively focuses light and improves luminous efficacy. However, during installation, transportation, or use, the optical lens of an LED is susceptible to impacts or pressure from external structures, which can affect its optical performance or even damage it, reducing the reliability and lifespan of the LED.

[0003] It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application. Utility Model Content

[0004] This application provides an LED bead and an LED strip with a protective frame to solve or alleviate one or more technical problems in the prior art.

[0005] The first aspect of this application provides an LED light bead with a protective frame, comprising:

[0006] A bracket includes a first side and a second side opposite to each other, and the bracket has a through hole that passes through the first side and the second side;

[0007] A heat sink is fixed to the first side of the bracket and blocks the first end of the through hole. The heat sink and the through hole of the bracket cooperate to form a cavity.

[0008] At least one light-emitting chip is mounted on the heat sink and located within the cavity;

[0009] An optical lens body is fixed to the second side of the bracket and blocks the second end of the through hole;

[0010] A protective frame is fixed to the side of the heat sink facing the bracket, sleeved on the bracket and attached to the outer wall of the bracket, and the protective frame extends at least partially out of the second side of the bracket.

[0011] Optionally, the projection of the bracket in the vertical direction is rectangular or circular, and the shape of the protective frame matches the bracket.

[0012] Optionally, the protective frame extends out of the bracket along a first direction;

[0013] The length of the portion of the protective frame extending beyond the bracket is not greater than the length of the optical lens body in the first direction.

[0014] Optionally, the ratio of the length of the protective frame extending beyond the bracket in the first direction to the length of the optical lens body in the first direction is 0.05 to 0.9.

[0015] Optionally, the material of the protective frame includes one of ceramic, EMC, PPA, and PCT.

[0016] Optionally, it also includes:

[0017] A partition strip is fixed to the side of the heat sink facing the bracket, and its two ends are connected across the inner wall of the through hole. The partition strip is used to divide the cavity into a first region and a second region.

[0018] The light-emitting chips are multiple, with at least some of them located in the first region and the remaining portion located in the second region.

[0019] Optionally, the height of the partition strip is less than the depth of the through hole.

[0020] Optionally, it also includes:

[0021] A first adhesive layer is filled in the first area and covers the light-emitting chip within the first area;

[0022] The second adhesive layer fills the second region and covers the light-emitting chip in the second region;

[0023] The color of the first adhesive layer is different from the color of the second adhesive layer.

[0024] Optionally, it may further include a third adhesive layer, which covers the first adhesive layer and the second adhesive layer.

[0025] A second aspect of this application provides an LED light strip, comprising:

[0026] substrate;

[0027] A plurality of LED beads as described in any of the above, wherein the plurality of LED beads are fixed at intervals on the substrate.

[0028] The embodiments of this application employing the above-described technical solution may have the following advantages:

[0029] The portion of the protective frame extending beyond the second side of the bracket protects the optical lens body, providing additional mechanical support and enabling the LED beads to withstand more external forces. It also prevents the optical lens body from being subjected to external collisions or compression. During the installation, transportation, or use of the LED beads, the protective frame enhances the overall structural safety and reliability of the LED beads by surrounding the optical lens body and providing a physical barrier, thereby reducing the probability of damage to the LED beads as a whole.

[0030] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0031] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0032] Figure 1 A schematic diagram of an LED bead with a protective frame provided in an embodiment of this application;

[0033] Figure 2 A cross-sectional view of an LED bead with a protective frame provided for an embodiment of this application;

[0034] Figure 3 A top view of an LED bead with a protective frame provided in an embodiment of this application;

[0035] Figure 4 Another structural schematic diagram of an LED bead with a protective frame provided in an embodiment of this application;

[0036] Figure 5 Another structural schematic diagram of an LED bead with a protective frame provided in an embodiment of this application;

[0037] Figure 6 Another structural schematic diagram of an LED bead with a protective frame provided in an embodiment of this application;

[0038] Figure 7 This is a schematic diagram of the structure of the LED light strip provided in an embodiment of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] Support 11; cavity 111; first region 113; second region 115; heat sink 12; light-emitting chip 13; optical lens body 14; partition strip 16; protective frame 18; sealing ring 19; first adhesive layer 21; second adhesive layer 22; third adhesive layer 23; LED lamp bead 100; substrate 200. Detailed Implementation

[0041] The embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings. In the drawings, for clarity, the dimensions of layers, regions, elements, and their relative dimensions may be exaggerated. The same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0042] It should be understood that when an element or layer is referred to as "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc., may be used to describe various elements, components, areas, layers, and / or portions, these elements, components, areas, layers, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, area, layer, or portion from another element, component, area, layer, or portion. Therefore, without departing from the teachings of this application, the first element, component, area, layer, or portion discussed below may be referred to as a second element, component, area, layer, or portion. And the discussion of a second element, component, area, layer, or portion does not imply that the first element, component, area, layer, or portion necessarily exists in this application.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0045] In this application, when numerical intervals (i.e., numerical ranges) are involved, unless otherwise specified, the distribution of selectable numerical values ​​within the numerical interval is considered continuous, and includes the two endpoints of the numerical interval (i.e., the minimum and maximum values), as well as every numerical value between these two endpoints. Unless otherwise specified, when a numerical interval refers only to integers within that numerical interval, it includes the two endpoint integers of the numerical range, as well as every integer between the two endpoints, which is equivalent to directly listing every integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be merged. In other words, unless otherwise specified, the numerical ranges disclosed in this application should be understood to include any and all subranges included therein. The "numerical value" in the numerical interval can be any quantitative value, such as a number, percentage, ratio, etc. The term "numerical interval" can be broadly included to include percentage intervals, ratio intervals, proportion intervals, etc.

[0046] This application provides a technical solution for LED beads and LED strips with protective frames. This reduces the susceptibility of the optical lens to impacts or pressure from external structures, which could affect the optical performance of the optical lens or even damage it, thus reducing the reliability and lifespan of the LED beads. See below for details.

[0047] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. It should be understood that these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein.

[0048] Please see Figures 1 to 6 This application provides an LED light bead with a protective frame (hereinafter referred to as LED light bead), which includes a bracket 11, a heat sink 12, at least one light-emitting chip 13, an optical lens body 14, and a protective frame 18. The following is a detailed description:

[0049] The bracket 11 includes a first side and a second side opposite to each other. A through hole is formed on the bracket 11, penetrating both the first side and the second side; that is, the through hole can extend from the first side to the second side. The bracket 11 can serve as an integral structural support for the LED chip. The material of the bracket 11 can include one of ceramic, EMC (Epoxy Molding Compound), PPA (Polyphthalamide), or PCT (Polycyclohexylene Dimethylene Terephthalate).

[0050] As illustrated, polyphthalamide possesses high mechanical strength and toughness, making it resistant to cracking or deformation. Therefore, it effectively protects the internal light-emitting chip 13, making it suitable for applications requiring impact and wear resistance. Ceramic, on the other hand, exhibits high thermal conductivity, effectively dissipating heat and preventing overheating. It can also withstand high temperatures and mechanical wear, making it suitable for applications requiring high heat resistance.

[0051] The heat sink 12 is fixed to the first side of the bracket 11 and blocks the first end of the through hole. The heat sink 12 and the through hole of the bracket 11 cooperate to form a cavity 111.

[0052] The material of the heat sink 12 may include one of the following: ceramic, copper, aluminum, iron, etc. The side of the heat sink 12 away from the bracket 11 is in direct contact with the external environment to absorb the heat generated by the light-emitting chip 13 when it is working, and dissipate the absorbed heat through the surface exposed to the external environment, which can reduce the performance degradation and light decay caused by heat accumulation.

[0053] As an example, aluminum has high thermal conductivity, between 200 and 250 W / (m·K), which is sufficient to meet the heat conduction and heat dissipation requirements of the light-emitting chip 13. Aluminum is also relatively lightweight, which helps to reduce the overall weight of the component.

[0054] At least one light-emitting chip 13 is mounted on the heat sink 12 and located in the cavity 111. The light-emitting chip 13 is used to emit light when powered on.

[0055] The optical lens body 14 is fixed to the second side of the bracket 11 and blocks the second end of the through hole. The optical lens body 14 is made of transparent material and can be used to focus the light source or adjust the beam angle. In this embodiment, the optical lens body 14 can control the beam scattering angle between 3° and 180°, which can be achieved by adjusting the height, thickness, shape, refractive index, etc. of the optical lens body 14.

[0056] The protective frame 18 is fixed to the side of the heat sink 12 facing the bracket 11, sleeved on the bracket 11 and attached to the outer wall of the bracket 11, and the protective frame 18 extends at least partially out of the second side of the bracket 11.

[0057] The portion of the protective frame 18 extending beyond the second side of the bracket 11 can protect the optical lens body 14, providing additional mechanical support for the optical lens body 14 and enabling the LED lamp bead to withstand more external forces. It can also prevent the optical lens body 14 from being subjected to external collisions or compression. During the installation, transportation, or use of the lamp bead, the protective frame 18 improves the overall structural safety and reliability of the LED lamp bead by surrounding the optical lens body 14 and providing a physical barrier, thereby reducing the probability of damage to the LED lamp bead as a whole.

[0058] In this embodiment, please refer to Figures 4 to 6 The vertical projection of the bracket 11 is rectangular or circular, and the shape of the protective frame 18 matches that of the bracket 11. The matching shape of the bracket 11 and the protective frame 18 ensures that the protective frame 18 perfectly fits the shape of the bracket 11, guaranteeing a tight fit during assembly. This provides stable support and protection, preventing loose installation or structural instability due to shape mismatch, and enhancing the overall mechanical strength of the LED beads.

[0059] It is understood that the projection shape of the bracket 11 in the vertical direction can also be other shapes, such as triangles, pentagons, etc. The overall shape of the bracket 11 can also be customized according to the requirements, and there are no restrictions here.

[0060] In one optional embodiment, the projection shape of the through-hole in the vertical direction is rectangular or circular. A circular through-hole can concentrate and distribute light more evenly when reflecting light, making it more suitable for applications requiring high light intensity or circular light spots.

[0061] In an optional embodiment, the protective frame 18 extends beyond the bracket 11 along a first direction, wherein the length of the portion of the protective frame 18 extending beyond the bracket 11 is not greater than the length of the optical lens body 14 in the first direction. This effectively prevents the optical lens body 14 from being excessively exposed, reducing the risk of it being subjected to external impacts or friction during installation and use. Furthermore, it reduces the amount of light obstructed by the protective frame 18.

[0062] The length of the protective frame 18 extending out of the bracket 11 can be adjusted according to specific needs. The illumination light of the LED beads can be adjusted by adjusting the length of the protective frame 18 extending out of the bracket 11 to achieve light scattering or light focusing.

[0063] Furthermore, in this embodiment, the ratio of the length of the protective frame 18 extending beyond the bracket 11 along the first direction to the length of the optical lens body 14 along the first direction is 0.05 to 0.9. At a reasonable ratio, the obstruction of light by the protective frame 18 can be reduced, ensuring that the refraction and light scattering efficiency of the optical lens body 14 is not excessively affected, thus minimizing the impact on the overall luminous efficacy of the LED beads and ensuring smooth light transmission and uniform light emission.

[0064] In an optional embodiment, the material of the protective frame 18 includes one of ceramic, EMC (Epoxy Molding Compound), PPA (Polyphthalamide), and PCT (Polycyclohexylene Dimethylene Terephthalate). Specifically, the material of the protective frame 18 can be the same as that of the bracket 11, and it can be integrally formed with the bracket 11.

[0065] In an optional embodiment, the LED lamp bead further includes a partition strip 16, which is fixed to the side of the heat sink 12 facing the bracket 11, and its two ends span the inner wall of the through hole. The partition strip 16 is used to divide the cavity 111 into a first region 113 and a second region 115. There are multiple light-emitting chips 13, with at least some of the light-emitting chips 13 located in the first region 113 and the remaining light-emitting chips 13 located in the second region 115.

[0066] In this embodiment, the partition strip 16 can divide the cavity 111 into two independent regions (i.e., the first region 113 and the second region 115), so that when filling with different colored fluorescent adhesives, different colored fluorescent adhesives can be filled into the first region 113 and the second region 115 respectively, avoiding interference and mixing of different colored fluorescent adhesives, reducing the situation where color mixing causes color difference and affects the light emission quality and display effect.

[0067] Furthermore, in this embodiment, the height of the partition strip 16 is less than the depth of the through hole, so that the propagation path of light from the light-emitting chip 13 to the optical lens body 14 is not easily blocked or interfered with by the partition strip 16, thus maintaining the uniformity of light and brightness output.

[0068] In an optional embodiment, the area of ​​the first region 113 and the area of ​​the second region 115 are the same. The identical area of ​​the two regions allows for the placement of the same number of phosphors and light-emitting chips 13, thereby achieving balanced light intensity output and avoiding uneven light emission or color shift due to differences in region area.

[0069] In addition, if the two areas are filled with different colored fluorescent adhesives and the power of the light-emitting chip 13 is the same and the area is equal, it can ensure that the light output ratio of the two colors is consistent, avoid the situation where one color is too strong or too weak, and improve the color reproduction and performance.

[0070] Specifically, when the projection shape of the through hole in the vertical direction is circular, that is, when the cavity 111 is cylindrical, the partition strip 16 can overlap along the diameter of the cavity 111 to divide the cavity 111 into two semicircles of the same area. When the projection shape of the through hole in the vertical direction is rectangular, that is, when the cavity 111 is a rectangular space, the partition strip 16 can divide the cavity 111 into two smaller rectangles of the same area.

[0071] In an optional embodiment, the light-emitting chip 13 located in the first region 113 includes a plurality of first sub-light-emitting chips 13, and the plurality of first sub-light-emitting chips 13 emit different colors.

[0072] Multiple sub-light-emitting chips 13 of different colors can be combined to emit light, achieving multi-color light output and meeting users' needs for color richness. Specifically, dynamic color-changing effects (such as RGB color mixing) can be achieved by controlling the brightness ratio of different colored sub-light-emitting chips 13, which can be used for scene lighting or ambient lighting.

[0073] In some embodiments, the multiple color sub-light-emitting chips 13 can also work individually or in combination to adapt to different optical application requirements, such as adjusting color temperature, hue, etc.

[0074] In some embodiments, multiple first sub-light-emitting chips 13 can also emit the same light color. Based on this, phosphors of corresponding colors can be filled on multiple first sub-light-emitting chips 13 to control the overall light emission color.

[0075] In an optional embodiment, the LED lamp bead further includes a first adhesive layer 21 and a second adhesive layer 22. The first adhesive layer 21 fills the first region 113 and covers the light-emitting chip 13 within the first region 113. The second adhesive layer 22 fills the second region and covers the light-emitting chip 13 within the second region. The color of the first adhesive layer 21 and the second adhesive layer 22 are different. Specifically, in this embodiment, the first adhesive layer 21 and the second adhesive layer 22 can be fluorescent adhesives containing phosphors. The luminous efficacy, color temperature, color rendering index, and other requirements of specific applications can be met by adjusting the material of the phosphor in the fluorescent adhesive and the material of the light-emitting chip 13.

[0076] The first adhesive layer 21 and the second adhesive layer 22 are different colors. Different colors of light can be output by combining the light from the light-emitting chip 13 in their respective regions with the colors of the adhesive layers, thus meeting the requirements of multi-color light sources. Furthermore, since the first region 113 and the second region 115 are separated by the partition strip 16 and are independent of each other, the two adhesive layers do not interfere with each other, avoiding impure light colors or color differences caused by color mixing, thereby improving the light emission quality.

[0077] In some embodiments, the partition strip 16 can be cross-shaped to isolate four independent regions within the cavity 111. Light-emitting chips 13 and fluorescent adhesives of different colors can be placed in the four different regions to achieve more light-emitting effects.

[0078] As illustrated, the light-emitting chip 13 can emit monochromatic light (such as blue light or ultraviolet light). The phosphor contains phosphor, which emits different colors of light when excited by the light emitted by the light-emitting chip 13. By mixing different phosphors, the originally monochromatic light can be converted into white light or other desired colors, thereby meeting different application requirements.

[0079] Furthermore, in this embodiment, the LED lamp bead may also include a third adhesive layer 23, which covers the first adhesive layer 21 and the second adhesive layer 22, and the third adhesive layer 23 may be a transparent material.

[0080] The third adhesive layer 23 covers the first adhesive layer 21 and the second adhesive layer 22, effectively protecting the internal phosphor layer and the light-emitting chip 13 from the influence of the external environment, thus improving the reliability and lifespan of the LED beads. The transparent third adhesive layer 23 can also uniformly refract and conduct light emitted from the first adhesive layer 21 and the second adhesive layer 22, reducing light scattering and loss, thereby improving the overall luminous efficacy and brightness. The third adhesive layer 23 also plays a role in optical flattening, that is, by covering the interface between the first and second adhesive layers 22, it makes the output light more uniform and avoids optical non-uniformity caused by the adhesive layer interface.

[0081] In one optional embodiment, the optical lens body 14 is cone-shaped. The cone-shaped optical lens body 14 can effectively focus light, concentrating the light emitted by the light-emitting chip 13 onto a designated area, increasing light intensity, and adapting to scenarios requiring high brightness or directional lighting. The cone-shaped optical lens body 14 can also better distribute light, reduce glare problems, optimize the uniformity of emitted light, and avoid obvious light spots.

[0082] Specifically, the conical optical lens body 14 can also control the degree of light divergence by adjusting the angle and height of the cone, thereby meeting different optical design requirements, such as narrow beam or wide beam illumination.

[0083] In some embodiments, the optical lens body 14 can also be other shapes such as spherical, cylindrical, or biconvex. A spherical optical lens body 14 is simple to manufacture, has good light-gathering and diffusion properties, and can achieve uniform light distribution. A cylindrical optical lens body 14 has strong light-gathering directionality, which can focus light into a line, making it suitable for strip lights, lasers, etc. A biconvex optical lens body 14 has convex surfaces on both sides, has strong optical focusing capability, and is suitable for projectors, high-brightness lighting fixtures, etc.

[0084] In this embodiment, the optical lens body 14 may include materials with transparent properties such as silicone, epoxy resin, and glass.

[0085] In an optional embodiment, the LED bead further includes a sealing ring 19, which is circumferentially distributed along the junction of the optical lens body 14 and the bracket 11.

[0086] The sealing ring 19 effectively prevents external contaminants such as dust, moisture, and liquids from entering the internal structure of the LED chip, protecting the light-emitting chip 13, the phosphor layer, and other electronic components, thus extending the lifespan of the LED chip. Furthermore, the sealing ring 19 further enhances the connection stability between the optical lens body 14 and the bracket 11. It also absorbs stress caused by thermal expansion and contraction between the optical lens body 14 and the bracket 11, reducing structural loosening or detachment due to temperature changes.

[0087] In an optional embodiment, the LED chip further includes an IC chip. The IC chip can be mounted on the heat sink 12 and electrically connected to the light-emitting chip 13. Specifically, the IC chip can convert the voltage of the input power supply to a suitable voltage required by the light-emitting chip 13. For example, the light-emitting chip 13 may require a voltage lower than that supplied by the power supply, and the IC chip is responsible for regulating and stabilizing these voltages. The IC chip can also precisely control the current flowing through the light-emitting chip 13, ensuring that the light-emitting chip 13 operates within a safe and efficient operating range, thereby extending the lifespan of the light-emitting chip 13 and optimizing the light output. The IC chip can also be used to adjust the light-emitting mode of the light-emitting chip 13, such as controlling the light-emitting chip 13 to emit light in a breathing light, flashing, or gradient manner.

[0088] Please see Figure 7 This application also provides an LED light strip, including a substrate 200 and a plurality of LED beads 100 as described in any of the above embodiments, wherein the plurality of LED beads 100 are fixed at intervals on the substrate 200.

[0089] The substrate 200 can be a flexible printed circuit board (FPCB) with good bending and flexibility. The substrate 200 can be easily wound, bent or laid along complex contours, enabling the LED strip to adapt to various installation environments, such as curved surfaces, bent surfaces or specific shapes.

[0090] Alternatively, an adhesive or adsorption structure can be provided on the side of the substrate 200 away from the LED beads 100 to fix the LED strip in a specific area.

[0091] In a preferred embodiment, multiple LED beads 100 are evenly spaced on the substrate 200. This even spacing prevents significant brightness differences or hot spots from appearing in the light source, ensuring uniform light distribution throughout the entire illumination area and avoiding bright spots or dark areas. The even arrangement also allows the light from the LED beads 100 to effectively overlap, resulting in consistent brightness across the entire LED strip or illumination area, thus providing a smooth and uniform lighting effect. Furthermore, the even distribution of the LED beads 100 also helps to relatively disperse the heat generated by the multiple LED beads 100, preventing localized overheating and reducing the shortened lifespan of the beads due to high temperatures.

[0092] The LED light strip of this embodiment can be widely used in various fields to meet different lighting and decorative needs. For example, it can be used in home lighting, such as installing LED light strips on ceilings, walls, and under cabinets to provide soft background or decorative lighting effects, enhancing the aesthetics of the home environment. It can also be used to create specific atmospheres, such as warm bedroom lighting or modern living room lighting, adapting to different usage scenarios by adjusting brightness and color temperature. Furthermore, it can be used in outdoor lighting, such as exterior contour lighting of buildings, highlighting the building's structure and design and enhancing its visual impact at night.

[0093] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., are used only for the convenience of describing this application 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 on this application. The directional terms "inner" and "outer" refer to the inside or outside relative to the outline of the component itself. For example, if a device in the drawings is inverted, a device described as "above" or "on top of" other devices or structures will subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0094] It should also be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this application refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0095] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0096] It should also be noted that the above are merely preferred embodiments of this application and do not limit the scope of patent protection of this application. Any equivalent structural or procedural changes made using the content of this application’s specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. An LED lamp bead with a protective frame, characterized in that, The application relates to a LED lamp bead with a protective frame. The LED lamp bead comprises a support, a heat dissipation plate, at least one light emitting chip, an optical lens body and a protective frame. The support comprises opposite first and second sides, and a through hole penetrating through the first and second sides. The heat dissipation plate is fixed to the first side of the support and blocks a first end of the through hole, and the heat dissipation plate and the through hole of the support cooperate to form a concave cavity. The at least one light emitting chip is mounted on the heat dissipation plate and located in the concave cavity. The optical lens body is fixed to the second side of the support and blocks a second end of the through hole.

2. The LED lamp bead of claim 1, wherein, The protective frame is fixed to a side of the heat dissipation plate facing the support, is sleeved on the support and is attached to the outer wall of the support, and at least partially protrudes from the second side of the support.

3. The LED lamp bead of claim 1, wherein, The projection of the support in the vertical direction is rectangular or circular, and the shape of the protective frame matches that of the support. The protective frame protrudes from the support in a first direction.

4. The LED lamp bead of claim 3, wherein, The length of the part of the protective frame protruding from the support is not greater than the length of the optical lens body in the first direction.

5. The LED lamp bead of claim 1, wherein, The ratio of the length of the protective frame protruding from the support in the first direction to the length of the optical lens body in the first direction is 0.05-0.

9.

6. The LED lamp bead of claim 1, wherein, The material of the protective frame comprises one of ceramic, EMC, PPA and PCT. Further comprising: A partition strip is fixed to a side of the heat dissipation plate facing the support and spans the inner wall of the through hole at both ends, and the partition strip is used for separating the concave cavity into spaced first and second regions.

7. The LED lamp bead of claim 6, wherein, The light emitting chips are multiple, and at least part of the light emitting chips are located in the first region, and the other part of the light emitting chips are located in the second region.

8. The LED lamp bead of claim 6, wherein, The height of the partition strip is less than the depth of the through hole. Further comprising: A first glue layer is filled in the first region and covers the light emitting chips in the first region. A second glue layer is filled in the second region and covers the light emitting chips in the second region.

9. The LED lamp bead of claim 8, wherein, The color of the first glue layer is different from that of the second glue layer.

10. An LED light bar, characterized by, A third glue layer is further provided and covers the first and second glue layers. The LED lamp bead with a protective frame comprises: A substrate; Multiple LED lamp beads with a protective frame as claimed in any one of claims 1-9 are fixed on the substrate in a spaced manner.

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