Lamp packaging structure
By setting a reflective part and light outlet in the lamp packaging structure, and combining a fluorescent glue layer and a high reflective material, the problems of low light output rate and poor spot consistency of the lamp packaging structure are solved, and the light output of the light source is more uniform and illuminance is improved.
Patent Information
- Application Number
- CN202422452552.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-10
AI Technical Summary
The existing lamp packaging structure has low light output rate and poor spot consistency, which leads to a large LED luminous and optical density that directly affects the illuminance and optical density of the LED light output center, and poor spot consistency.
A lamp packaging structure is adopted with a light outlet and a reflective part in the support frame. Part of the light generated by the light source member is refracted through the reflective part, and the other part is directly emitted to the light outlet. The width of the light outlet is smaller than the width of the light source member. The reflective part is used to concentrate the light rays upwards, combining a fluorescent glue layer and a high reflective material to improve the uniformity of light mixing.
The light output of the light source is achieved more uniformly, which improves the illuminance and spot consistency of the light source, avoids light loss, and improves the light output efficiency.
Smart Images
Figure CN223191454U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of LED lamps, in particular to a lamp packaging structure. Background Art
[0002] LED packaging technology has largely evolved from discrete device packaging technology, but it possesses significant unique characteristics. Typically, the die of a discrete device is sealed within a package, primarily protecting the die and enabling electrical interconnection. LED packaging, on the other hand, outputs electrical signals, protects the die, and generates visible light, requiring design and technical requirements for both electrical and optical parameters.
[0003] Currently, the packaging structures for flip-chip lamps include: (1) substrate → chip → white glue filling → fluorescent glue; (2) substrate → chip → fluorescent film → white glue filling; (3) bracket → chip → fluorescent glue, etc. However, in the existing packaging structure, the parallel light output from the side of the LED chip is blocked by the filler, resulting in a decrease in the overall light output efficiency of the chip. In addition, the large light-emitting surface of the LED directly affects the illumination and light density of the LED light output center, resulting in poor light spot consistency. Summary of the Invention
[0004] The purpose of the utility model is to improve the problems of low light output and poor light spot consistency of the existing lamp packaging structure, and to provide a lamp packaging structure.
[0005] The technical solutions to achieve the above objectives include the following:
[0006] Lamp packaging structure, including:
[0007] A support frame, a carrier substrate, and a light source component, wherein the light source component is mounted on the carrier substrate and electrically connected to the carrier substrate; the support frame is mounted on the carrier substrate, and a mounting cavity is formed in the support frame, and the light source component is located in the mounting cavity;
[0008] In which, the support frame is provided with a light outlet, the light outlet is arranged above the light source component, and the width of the light outlet is smaller than the width of the light source component; the inner wall of the support frame has a reflective portion, and a part of the light generated by the light source component is emitted to the light outlet through the reflective portion, and another part of the light generated by the light source component is emitted to the light outlet.
[0009] In one embodiment, the reflecting portion includes a first reflecting surface and a second reflecting surface, and the second reflecting surface is arranged on the supporting substrate; the first reflecting surface and the second reflecting surface are arranged on the side wall of the supporting frame, the second reflecting surface is connected to the first reflecting surface, and a first reflection angle is formed between the second reflecting surface and the first reflecting surface.
[0010] In one embodiment, the reflective portion further includes a third reflective surface, which is disposed obliquely above the light source and connected to the first reflective surface, forming a second reflective angle between the third reflective surface and the first reflective surface.
[0011] In one embodiment, the first reflection angle and the second reflection angle are both between 95 degrees and 130 degrees.
[0012] In one embodiment, the lamp packaging structure further includes a reflective film, and the reflective film is installed on the first reflective surface, the second reflective surface, and the third reflective surface;
[0013] And / or, the support frame is made of highly reflective material.
[0014] In one embodiment, the lamp packaging structure further has a fluorescent adhesive layer, which fills the installation cavity and covers the outer surface of the light source component, and the finished surface of the fluorescent adhesive layer is arranged at the light outlet.
[0015] In one embodiment, the fluorescent adhesive layer includes silica gel or a mixture of phosphor and silica gel.
[0016] In one embodiment, the ratio of the width of the light outlet to the width of the light source is 0.66:1 to 0.72:1.
[0017] In one embodiment, the midpoint of the light outlet coincides with the midpoint of the light source on a vertical line.
[0018] In one embodiment, the carrier substrate has a first connection terminal and a second connection terminal, and the light source has two connection terminals, which are electrically connected to the first connection terminal and the second connection terminal respectively.
[0019] The technical solution provided by the utility model has the following advantages and effects:
[0020] When the light source is conductive, its outer surface emits light. Some of the light generated by the light source is refracted by the reflector, while the remaining light is emitted directly to the light outlet. This fully reflects and concentrates the internal light source, allowing it to exit upward from the light outlet. This results in more uniform light output and improves the illumination, ultimately increasing the light output efficiency of the light source. Furthermore, the width of the light outlet is smaller than that of the light source, concentrating the light at the outlet, resulting in even light mixing and better light spot consistency. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings herein illustrate specific examples of the technical solutions described in the present invention, and together with the specific implementation methods constitute a part of the specification, and are used to explain the technical solutions, principles and effects of the present invention.
[0022] Unless otherwise specified or defined, the same reference numerals in different drawings represent the same or similar technical features, and the same or similar technical features may also be represented by different reference numerals.
[0023] Figure 1 This is a schematic diagram of the lamp packaging structure in one embodiment of the present invention. Figure 1 ;
[0024] Figure 2 This is a schematic diagram of the lamp packaging structure in one embodiment of the present invention. Figure 2 ;
[0025] Description of reference numerals:
[0026] 100. Lamp packaging structure; 1. Carrier substrate; 11. First terminal; 12. Second terminal; 2. Light source; 3. Fluorescent adhesive layer; 4. Support frame; 40. Reflection part; 41. Light outlet; 42. First reflection surface; 43. Second reflection surface; 44. Third reflection surface; 45. First reflection angle; 46. Second reflection angle; 47. Mounting cavity; 48. Reflection film. DETAILED DESCRIPTION
[0027] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.
[0028] Unless otherwise specified or defined, the "first, second..." used in this article is only used to distinguish names and does not represent a specific quantity or order.
[0029] Unless stated otherwise or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0030] It should be noted that when an element is considered to be "fixed to" another element, it can be directly fixed to the other element or there can be an intermediate element; when an element is considered to be "connected to" another element, it can be directly connected to the other element or there can be an intermediate element; when an element is considered to be "mounted on" another element, it can be directly mounted on the other element or there can be an intermediate element. When an element is considered to be "located on" another element, it can be directly located on the other element or there can be an intermediate element.
[0031] The present invention proposes a lamp packaging structure 100, such as Figure 1 and Figure 2As shown, it includes a support frame 4, a carrier substrate 1, and a light source 2. The light source 2 is mounted on the carrier substrate 1 and electrically connected to the carrier substrate 1. The support frame 4 is mounted on the carrier substrate 1, and a mounting cavity 47 is formed in the support frame 4. The light source 2 is located in the mounting cavity 47. The support frame 4 is provided with a light outlet 41. The light outlet 41 is arranged above the light source 2, and the width of the light outlet 41 is smaller than the width of the light source 2. The inner wall of the support frame 4 has a reflective portion 40. A portion of the light generated by the light source 2 is emitted to the light outlet 41 through the reflective portion 40, and another portion of the light generated by the light source 2 is emitted to the light outlet 41. Specifically, when the light source 2 is conductive, the outer surface of the light source 2 emits light, a portion of the light generated by the light source 2 is refracted through the reflective portion 40, and the other portion is directly emitted to the light outlet 41, so that the internal light source is fully reflected and concentrated to be emitted upward from the light outlet 41, thereby achieving a more uniform light output and improving the illumination of the light source, thereby improving the light output efficiency of the light source 2. Moreover, the width of the light outlet 41 is smaller than the width of the light source 2 , and the light is concentrated at the light outlet 41 , so that the light is evenly mixed and the light spot consistency effect is better.
[0032] In some embodiments, the inner wall of the support frame 4 is a reflective portion 40, which wraps the outer surface of the light source 2 to prevent the light generated by the light source 2 from being absorbed or diffused, and further prevents light loss on the outer surface of the light source 2.
[0033] In this embodiment, the light source 2 includes a fluorescent lamp, an incandescent lamp, an LED lamp, a white light lamp, etc., and is preferably an LED lamp.
[0034] Preferably, the reflective portion 40 includes a first reflective surface 42 and a second reflective surface 43. The second reflective surface 43 is disposed on the carrier substrate 1 and connected to one side of the light source 2. The first reflective surface 42 and the second reflective surface 43 are disposed on the sidewall of the light source 2, the second reflective surface 43 is connected to the first reflective surface 42, and a first reflection angle 45 is formed between the second reflective surface 43 and the first reflective surface 42. Specifically, the first reflective surface 42 and the second reflective surface 43 are located outside the sidewall of the light source 2. The blue light generated by the sidewall of the light source 2 is reflected by the first reflective surface 42 and the second reflective surface 43. This further causes the blue light generated by the sidewall of the light source 2 to be concentrated and emitted upward to the light outlet 41, thereby preventing light loss from the sidewall of the light source 2.
[0035] Preferably, the support frame 4 further includes a third reflective surface 44, which is disposed obliquely above the light source 2 and connected to the first reflective surface 42. A second reflection angle 46 is formed between the third reflective surface 44 and the first reflective surface 42. Specifically, the third reflective surface 44 is used to block or refract light from obliquely above the light source 2, causing the light generated by the light source 2 to be reflected from the inner wall of the support frame 4 or directly emitted from the light outlet 41, further preventing light loss from the light source 2.
[0036] Preferably, the first reflection angle 45 and the second reflection angle 46 are both between 95 and 130 degrees. In this embodiment, the first reflection angle 45 is 111 degrees, and the second reflection angle 46 is 115 degrees. This configuration is intended to reduce the size of the light outlet 41, prevent the light from the light source 2 from diffusing at the light outlet 41, further evenly mix the light, and achieve better light spot consistency.
[0037] In some embodiments, the lamp packaging structure 100 also includes a reflective film 48, which is installed on the first reflective surface 42, the second reflective surface 43, and the third reflective surface 44; specifically, the reflective film 48 is made of a highly reflective material, and the reflective film 48 is pasted on the inner wall of the support frame 4 so that the reflective film 48 fits the first reflective surface 42, the second reflective surface 43, and the third reflective surface 44, further avoiding the phenomenon of light loss of the light source 2 in the support frame 4.
[0038] In other embodiments, due to the processing technology of the lamp packaging structure 100, such as the use of a reflective film 48 bonded to the reflective portion 40, gaps may appear between the first reflective surface 42, the second reflective surface 43, and the third reflective surface 44. These gaps may cause the support frame 4 to absorb light. Therefore, the support frame 4 is made of a highly reflective material. Although this significantly increases the amount of highly reflective material used, it can prevent gaps from forming at the junctions between the multiple reflective surfaces, further preventing light loss from the light source 2 within the support frame 4.
[0039] In some embodiments, the lamp packaging structure 100 further comprises a fluorescent adhesive layer 3, which fills the mounting cavity 47 and covers the outer surface of the light source element 2. The finished surface of the fluorescent adhesive layer 3 is positioned at the light outlet 41. Specifically, the finished surface of the fluorescent adhesive layer 3 is flush with the upper end surface of the support frame 4. Fluorescent adhesive, also known as encapsulating adhesive, plays an important role in the manufacture of LED lamps. Its main functions include: fluorescent adhesive has advantages such as high light transmittance, high refractive index, good thermal stability, and low moisture absorption. The yellow soft adhesive used in LED lamps primarily functions to conduct heat. Because LEDs generate heat when they emit light, this soft adhesive helps disperse and conduct this heat, maintaining the normal operating temperature of the LED and preventing overheating damage. Protecting the light source element 2: As an encapsulating material, fluorescent adhesive protects the light source element 2 from external environmental influences such as moisture, oxygen, and physical impact, thereby enhancing the durability and stability of the light source element 2. Furthermore, fluorescent adhesive improves the durability and reliability of the light source element 2, ensuring stable operation of the LED lamp in various environments.
[0040] Preferably, the fluorescent adhesive layer 3 includes silica gel or a mixture of phosphor and silica gel. Specifically, phosphor can convert blue light into visible light of other wavelengths, and this conversion efficiency is closely related to its excitation spectrum. Through the conversion of phosphor, LED can achieve a wider range of colors, thereby meeting different lighting needs. In addition, phosphor is also used to excite three-primary color phosphors with ultraviolet light to obtain white light, which is an important way to realize white light LED. By exciting yellow phosphor through a blue LED chip, or combining a blue LED chip with red and green phosphors, white light is obtained by mixing the blue light emitted by the chip, the red light emitted by the phosphor, and the green light, thereby realizing efficient and energy-saving white light lighting.
[0041] In some embodiments, the ratio of the width of the light outlet 41 to the width of the light source 2 is 0.66:1 to 0.72:1. Specifically, this configuration can further concentrate the light from the light outlet 41, further achieving more uniform light output and improving the illumination of the light source; while avoiding the problem of the light-emitting surface of the lamp package structure 100 being too small, and meeting the lighting requirements of the lamp package structure 100.
[0042] In some embodiments, the midpoint of the light outlet 41 coincides with the midpoint of the light source 2 on a vertical line. Specifically, this arrangement is intended to make the light emitting areas on both sides of the light outlet 41 uniform, further making the light output of the light outlet 41 more uniform.
[0043] In some embodiments, the carrier substrate 1 has a first terminal 11 and a second terminal 12, and the light source 2 has two terminals, which are electrically connected to the first terminal 11 and the second terminal 12, respectively. Specifically, the carrier substrate 1 can be a ceramic substrate, an EMC substrate, or a silicon substrate. When the carrier substrate 1 is conductive, the carrier substrate 1 and the light source 2 are electrically connected, causing the light source 2 to emit light.
[0044] It should be noted that in the lamp packaging structure 100, by disposing the light source 2 in the support frame 4, providing a reflective portion 40 on the inner wall of the support frame 4, and setting the width of the light outlet 41 to be smaller than the width of the light source 2, the internal light source is fully reflected and concentrated to be emitted upward from the light outlet 41, thereby achieving more uniform light output, improving the problems of low light output efficiency and poor light spot consistency in the existing lamp packaging structure 100. In other lamp packaging structures 100, the use of providing the reflective portion 40 in the support frame 4 and setting the width of the light outlet 41 to be smaller than the width of the light source 2 are all within the scope of protection of this application.
[0045] When quoting drawing descriptions, new features that appear are described; in order to avoid repeated quoting of drawings which would result in a less concise description, features that have been described clearly will not be quoted from the drawings one by one.
[0046] The purpose of the above embodiments is to exemplify and deduce the technical solution of the utility model, and to fully describe the technical solution, purpose and effect of the utility model. Its purpose is to enable the public to have a more thorough and comprehensive understanding of the disclosed content of the utility model, and it does not limit the scope of protection of the utility model.
[0047] The above embodiments are not exhaustive of the present invention, and there may be many other embodiments not listed. Any replacements and improvements made without violating the concept of the present invention are within the scope of protection of the present invention.
Claims
1. Lamp packaging structure, characterized in that: include: A support frame, a carrier substrate, and a light source component, wherein the light source component is mounted on the carrier substrate and electrically connected to the carrier substrate; the support frame is mounted on the carrier substrate, and a mounting cavity is formed in the support frame, and the light source component is located in the mounting cavity; In which, the support frame is provided with a light outlet, the light outlet is arranged above the light source component, and the width of the light outlet is smaller than the width of the light source component; the inner wall of the support frame has a reflective portion, and a part of the light generated by the light source component is emitted to the light outlet through the reflective portion, and another part of the light generated by the light source component is emitted to the light outlet.
2. The lamp packaging structure according to claim 1, wherein: The reflecting portion includes a first reflecting surface and a second reflecting surface, the second reflecting surface is arranged on the supporting substrate; the first reflecting surface and the second reflecting surface are arranged on the side wall of the supporting frame, the second reflecting surface is connected to the first reflecting surface, and a first reflection angle is formed between the second reflecting surface and the first reflecting surface.
3. The lamp packaging structure according to claim 2, wherein: The reflective portion further includes a third reflective surface, which is disposed obliquely above the light source component and connected to the first reflective surface. A second reflective angle is formed between the third reflective surface and the first reflective surface.
4. The lamp packaging structure according to claim 3, wherein: The first reflection angle and the second reflection angle are both between 95 degrees and 130 degrees.
5. The lamp packaging structure according to claim 3, wherein: The lamp packaging structure further includes a reflective film, which is installed on the first reflective surface, the second reflective surface, and the third reflective surface; And / or, the support frame is made of highly reflective material.
6. The lamp packaging structure according to any one of claims 1 to 5, characterized in that: The lamp packaging structure further comprises a fluorescent adhesive layer, which is filled into the mounting cavity and covers the outer surface of the light source component, and the finished surface of the fluorescent adhesive layer is arranged at the light outlet.
7. The lamp packaging structure according to claim 6, wherein: The fluorescent adhesive layer includes silica gel or a mixture of fluorescent powder and silica gel.
8. The lamp packaging structure according to any one of claims 1 to 5, characterized in that: The ratio of the width of the light outlet to the width of the light source is 0.66:1 to 0.72:
1.
9. The lamp packaging structure according to any one of claims 1 to 5, characterized in that: The midpoint of the light outlet coincides with the midpoint of the light source on a plumb line.
10. The lamp packaging structure according to any one of claims 1 to 5, characterized in that: The carrier substrate is provided with a first connection terminal and a second connection terminal. The light source component has two connection terminals, and the two connection terminals are electrically connected to the first connection terminal and the second connection terminal respectively.