Packaging device for high-power LED fishing lamp
By adopting large-size sapphire lenses and low-melting glass powder packaging solutions in high-power LED fishing lamps, the problem of poor heat dissipation of ceramic-based fluorescence conversion materials in high-power applications is solved, and higher luminous efficiency and lower The working temperature is suitable for high-power LED fishing lamp applications.
Patent Information
- Application Number
- CN202411377783.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-02-07
AI Technical Summary
Existing high-power LED fishing lamps have poor heat dissipation at high temperatures and are prone to yellowing and aging. Ceramic-based fluorescence conversion materials still generate a large amount of heat in high-power applications, and there is a lack of effective solutions.
A large-size sapphire lens is used to dissipate heat in fluorescent ceramics, and the fluorescent ceramics and LED modules are packaged through low-melting glass powder. The heat transfer process is used to transfer heat from the fluorescent ceramics to the LED modules, reducing the working temperature of the fluorescent ceramics. .
It significantly alleviates the thermal effect under high-power excitation, improves luminous efficiency, reduces the working temperature of fluorescent ceramics, and has a simple process suitable for industrialization.
Smart Images
Figure CN119403326A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of semiconductor lighting, and in particular to a packaging device for a high-power LED fishing lamp. Background Art
[0002] Most of the existing fishing lights are gas discharge lamps with low efficiency, about 10-20lm / W. In order to achieve high power, they often integrate multiple modules, which are heavy and further reduce the luminous efficiency. Semiconductor LED lighting has excellent characteristics such as small size, safe low voltage, long life, high electro-optical conversion efficiency, fast response speed, energy saving, and environmental protection. It can gradually replace gas discharge lamps in high-power and high-efficiency applications.
[0003] As white light LEDs continue to develop in the direction of high power and integration, the shortcomings of organic packaging materials such as poor heat dissipation at high temperatures, easy yellowing and aging, and residual blue light are becoming increasingly prominent. Ceramic-based fluorescent conversion materials, due to their excellent luminous performance and stability, can effectively solve the aging, color drift, blue light overflow and other problems of existing silicone-packaged LEDs, and have become an important research direction for light conversion materials for high-power LEDs. However, fluorescent ceramics are bulk materials, and compared to colloidal phosphor solutions, they need to be redesigned in terms of heat dissipation and packaging solutions; especially in high-power applications, a lot of heat will still be generated, and there is currently no practical solution. Therefore, how to realize the application of ceramic-based fluorescent conversion materials in high-power LED fishing lights is crucial. Summary of the invention
[0004] In view of the above problems, the present invention discloses a packaging device for a high-power LED fishing light, which adopts a large-size sapphire lens for fluorescent ceramic heat dissipation, greatly alleviating the thermal effect under high-power excitation; at the same time, low-melting-point glass powder is used to package the fluorescent ceramic and the chip, and heat can be transferred from the fluorescent ceramic to the chip through the heat transfer process, further reducing the operating temperature of the fluorescent ceramic.
[0005] According to the purpose of the present invention, a packaging device for a high-power LED fishing light is proposed, comprising a heat dissipation substrate, an LED module, a first connecting layer, a fluorescent ceramic, a second connecting layer and a lens arranged in sequence; the heat dissipation substrate is used as a heat dissipation medium for heat dissipation of the packaging device; the LED module is a blue light emission source; the fluorescent ceramic is a fluorescent emission source; the lens is used for light source shaping; the LED module and the fluorescent ceramic are connected through the first connecting layer, and the fluorescent ceramic and the lens are connected through the second connecting layer.
[0006] Preferably, the heat dissipation substrate is a water-cooled radiator or a semiconductor refrigerator.
[0007] Preferably, the LED module has a peak wavelength of 460-480 nm, a power of 200-500 W, and a side length of 3-5 cm.
[0008] Preferably, the first connecting layer is a low-melting-point glass layer with a thickness of 0.05-0.1 mm; the sintering temperature of the precursor low-melting-point glass powder is 350-400° C., and the transmittance at 800 nm is 85-90%.
[0009] Preferably, the fluorescent ceramic is Ce-doped YAG or LuAG fluorescent ceramic, and the Ce doping concentration is 0.1-0.2 at. %; the fluorescent ceramic has a side length of 3-5 cm and a thickness of 0.2-0.3 mm.
[0010] Preferably, the second connecting layer is a quartz glass layer with a thickness of 0.05-0.1 mm, the sintering temperature of the precursor quartz glass powder is 800-1200° C., and the transmittance at 800 nm is 90-94%.
[0011] Preferably, the lens is made of sapphire, has a radius of 12 to 20 cm, and a divergence angle of 20 to 60°.
[0012] Preferably, after passing through the lens, the luminous flux of the light source is 30,000 to 70,000 lm, and the luminous efficiency is 140 to 150 lm / W.
[0013] Compared with the prior art, the packaging device for a high-power LED fishing lamp disclosed in the present invention has the following advantages:
[0014] 1. Compared with the existing gas discharge lamp, the luminous efficiency of the present invention is higher, far exceeding 30lm / W.
[0015] 2. The present invention innovatively uses a large-size sapphire lens for fluorescent ceramic heat dissipation, which greatly alleviates the thermal effect under high-power excitation; at the same time, low-melting-point glass powder is used to encapsulate the fluorescent ceramic and the LED module, which has good connection performance and can transfer heat from the fluorescent ceramic to the LED module through the heat transfer process, further reducing the working temperature of the fluorescent ceramic.
[0016] 3. In the present invention, the connection layer between the LED module and the fluorescent ceramic uses low-melting-point glass powder, which has a low preparation temperature, a simple process, and is suitable for industrialization. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 This is a structural diagram of a packaging device for a high-power LED fishing light disclosed in the present invention.
[0019] In the figure: 1-LED module; 2-first connection layer; 3-fluorescent ceramic; 4-second connection layer; 5-lens; 6-heat dissipation base. DETAILED DESCRIPTION
[0020] The specific implementation of the present invention is briefly described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] Figure 1 The preferred embodiments of the present invention are shown and analyzed in detail.
[0022] Example 1
[0023] like Figure 1 The packaging device for a high-power LED fishing lamp shown in the figure comprises a heat dissipation substrate 6, an LED module 1, a first connection layer 2, a fluorescent ceramic 3, a second connection layer 4 and a lens 5 which are arranged in sequence.
[0024] The heat dissipation substrate 6 is a semiconductor refrigerator, which is used as a heat dissipation medium to dissipate heat of the packaging device.
[0025] LED module 1 is a blue light emission source with a peak wavelength of 460nm, a power of 200W and a side length of 3cm.
[0026] The fluorescent ceramic 3 is a fluorescent emission source, and is a Ce-doped YAG fluorescent ceramic, and the Ce doping concentration is 0.1 at.%. The fluorescent ceramic 3 has a side length of 3 cm and a thickness of 0.3 mm.
[0027] The material of lens 5 is sapphire, used for light source shaping, and has a radius of 12 cm.
[0028] The LED module 1 and the fluorescent ceramic 3 are connected through the first connecting layer 2, and the fluorescent ceramic 3 and the lens 5 are connected through the second connecting layer 4. The first connecting layer 2 is a low-melting glass layer with a thickness of 0.05 mm; the sintering temperature of the precursor low-melting glass powder is 400°C, and the transmittance at 800nm is 90%. The second connecting layer 4 is a quartz glass layer with a thickness of 0.05 mm, and the sintering temperature of the precursor quartz glass powder is 800°C, and the transmittance at 800nm is 90%.
[0029] When the LED module 1 is turned on, the blue light passes through the first connecting layer 2 to reach the fluorescent ceramic 3. The fluorescent ceramic 3 absorbs a part of the blue light and emits yellow light. The remaining blue light and fluorescence pass through the second connecting layer 4. After being shaped by the lens 5, the divergence angle of the formed light source is 20°, the luminous flux of the light source is 30,000 lm, and the luminous efficiency is 150 lm / W.
[0030] Example 2
[0031] like Figure 1 The packaging device for a high-power LED fishing lamp shown in the figure comprises a heat dissipation substrate 6, an LED module 1, a first connection layer 2, a fluorescent ceramic 3, a second connection layer 4 and a lens 5 which are arranged in sequence.
[0032] The heat dissipation base 6 is a water-cooled radiator, which is used as a heat dissipation medium to dissipate heat from the packaging device. The heat dissipation base 6 is a water-cooled radiator or a semiconductor refrigerator.
[0033] LED module 1 is a blue light emission source with a peak wavelength of 480nm, a power of 500W and a side length of 5cm.
[0034] The fluorescent ceramic 3 is a fluorescent emission source, which is a Ce-doped LuAG fluorescent ceramic with a Ce doping concentration of 0.2 at. %; the fluorescent ceramic 3 has a side length of 5 cm and a thickness of 0.2 mm.
[0035] The material of lens 5 is sapphire, used for light source shaping, and has a radius of 20 cm.
[0036] The LED module 1 and the fluorescent ceramic 3 are connected through the first connection layer 2, and the fluorescent ceramic 3 and the lens 5 are connected through the second connection layer 4. The first connection layer 2 is a low-melting glass layer with a thickness of 0.1 mm; the sintering temperature of the precursor low-melting glass powder is 400°C, and the transmittance at 800nm is 85%. The second connection layer 4 is a quartz glass layer with a thickness of 0.1 mm, and the sintering temperature of the precursor quartz glass powder is 1200°C, and the transmittance at 800nm is 94%.
[0037] When the LED module 1 is turned on, the blue light passes through the first connecting layer 2 to reach the fluorescent ceramic 3. The fluorescent ceramic 3 absorbs a part of the blue light and emits green light. The remaining blue light and fluorescence pass through the second connecting layer 4 and are shaped by the lens 5. The divergence angle of the light source is 60°, the luminous flux of the light source is 70,000 lm, and the luminous efficiency is 140 lm / W.
[0038] The above description of the disclosed embodiments enables those skilled in the art to implement and use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit and scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest range consistent with the principles and novel features disclosed herein.
Claims
1. A packaging device for a high-power LED fishing light, characterized in that: The invention comprises a heat dissipation substrate (6), an LED module (1), a first connection layer (2), a fluorescent ceramic (3), a second connection layer (4) and a lens (5) which are arranged in sequence; the heat dissipation substrate (6) is used as a heat dissipation medium for heat dissipation of a packaging device; the LED module (1) is a blue light emission source; the fluorescent ceramic (3) is a fluorescent emission source; the lens (5) is used for light source shaping; the LED module (1) and the fluorescent ceramic (3) are connected via the first connection layer (2), and the fluorescent ceramic (3) and the lens (5) are connected via the second connection layer (4).
2. A packaging device for a high-power LED fishing light according to claim 1, characterized in that: The heat dissipation substrate (6) is a water-cooled radiator or a semiconductor refrigerator.
3. The packaging device for a high-power LED fishing light according to claim 1, characterized in that: The LED module (1) has a peak wavelength of 460-480 nm, a power of 200-500 W, and a side length of 3-5 cm.
4. The packaging device for a high-power LED fishing light according to claim 1, characterized in that: The first connecting layer (2) is a low-melting-point glass layer with a thickness of 0.05-0.1 mm; the sintering temperature of the precursor low-melting-point glass powder is 350-400° C., and the transmittance at 800 nm is 85-90%.
5. The packaging device for a high-power LED fishing light according to claim 1, characterized in that: The fluorescent ceramic (3) is a Ce-doped YAG or LuAG fluorescent ceramic, and the Ce doping concentration is 0.1-0.2 at. %; the fluorescent ceramic (3) has a side length of 3-5 cm and a thickness of 0.2-0.3 mm.
6. The packaging device for a high-power LED fishing light according to claim 1, characterized in that: The second connecting layer (4) is a quartz glass layer with a thickness of 0.05-0.1 mm. The sintering temperature of the precursor quartz glass powder is 800-1200° C. and the transmittance at 800 nm is 90-94%.
7. The packaging device for a high-power LED fishing light according to claim 1, characterized in that: The lens (5) is made of sapphire, has a radius of 12 to 20 cm, and a divergence angle of 20 to 60°.
8. The packaging device for a high-power LED fishing light according to claim 1, characterized in that: After passing through the lens (5), the luminous flux of the light source is 30,000 to 70,000 lm, and the luminous efficiency is 140 to 150 lm / W.