High-luminous-efficiency low-energy-consumption LED lamp bead and mounting method thereof

Abstract

An LED lamp bead with high luminous efficiency and low energy consumption and an installation method thereof are applied to the field of illumination, and the LED lamp bead comprises a transparent protective cover, an LED chip, a circular supporting plate, a vibration sensor, a first light diffusion cover and a second light diffusion cover; the refractive index of the first diffuser is n1, the refractive index of the second diffuser is n2, the refractive index of the protective cover is n3, and n1 > n2 > n3; a first transparent colloid is filled between the first light diffusion cover and the circular supporting plate, a second transparent liquid is filled between the second light diffusion cover and the first light diffusion cover, and a third transparent colloid is filled between the transparent protection cover and the second light diffusion cover; due to the fact that the refractive index is decreased progressively, the divergence angle of emergent light is larger, and the coverage range is wider; the vibration sensor is used for sensing an external vibration signal, and when the vibration intensity sensed within a set time is smaller than a set threshold value, the control module controls the LED lamp beads to automatically enter a dormant state, so that low energy consumption is achieved.

Description

Technical Field

[0001] The invention relates to the field of lighting, and in particular to a LED lamp bead with high light efficiency and low energy consumption and a mounting method thereof. Background Art

[0002] Traditional LED lamp beads are mostly fluorescent glue directly covering the LED chip, lacking a uniform light structure, and their light emission is not uniform and the coverage range is small; when the LED lamp beads are working, their luminous efficiency is usually only 30-40%, and the remaining energy is usually dissipated in the form of heat energy, causing the temperature of the LED lamp beads to rise, affecting the luminous efficiency and life. In addition, when there is no human operation for a long time, the LED lamp beads are still in a lit state, increasing excess energy consumption. Therefore, it is a technical problem that technicians urgently need to solve to reasonably reduce the energy consumption of LED lamp beads while ensuring the uniform light, irradiation range and heat dissipation efficiency. Summary of the invention

[0003] In view of the above technical problems, the present invention provides a high-light-efficiency and low-energy-consumption LED lamp bead and an installation method thereof, wherein the LED lamp bead comprises: a transparent protective cover, an LED chip, a circular support plate, a vibration sensor, a first diffuser cover and a second diffuser cover;

[0004] The transparent protective cover, the first diffuser cover, and the second diffuser cover are all transparent hollow hemispheres with one end open; the opening radius of the transparent protective cover is R1, the opening radius of the second diffuser cover is R2, and the opening radius of the first diffuser cover is R3; wherein R1>R2>R3; the radius of the circular support plate is R0, wherein R0 is greater than R1; the transparent protective cover, the first diffuser cover, the second diffuser cover, and the circular support plate are concentrically arranged; the transparent protective cover, the LED chip, the first diffuser cover, and the second diffuser cover are all arranged on the upper side of the circular support plate, wherein the LED chip is arranged inside the first diffuser cover, the first diffuser cover is arranged inside the second diffuser cover, and the second diffuser cover is arranged inside the transparent protective cover;

[0005] The refractive index of the first diffuser is n1, the refractive index of the second diffuser is n2, and the refractive index of the protective cover is n3, wherein n1>n2>n3; a first transparent colloid is filled between the first diffuser and the circular support plate, a second transparent liquid is filled between the second diffuser and the first diffuser, and a third transparent colloid is filled between the transparent protective cover and the second diffuser, wherein the refractive index of the first transparent colloid is n1, the refractive index of the second transparent liquid is n2, and the refractive index of the third transparent colloid is n3;

[0006] A wire hole connected to the outside is provided inside the circular support plate, and the wires of the LED chip are connected to the wiring terminals on the circular support plate via the wire hole; the control module is electrically connected to the LED chip and the vibration sensor; the vibration sensor is used to sense external vibration signals, and when the vibration intensity sensed within a set time is less than a set threshold, the control module controls the LED lamp bead to automatically enter a sleep state.

[0007] Optionally, a first annular mounting groove, a second annular mounting groove and a third annular mounting groove matching the sizes of the transparent protective cover, the second diffuser cover and the first diffuser cover are respectively formed on the upper side of the circular support plate.

[0008] Optionally, the circular support plate is respectively provided with a first glue injection hole, multiple second liquid injection holes and a third glue injection hole; the first glue injection hole is located on the inner side of the third annular mounting groove; the second liquid injection hole is located between the second annular mounting groove and the third annular mounting groove, and the third glue injection hole is located between the first annular mounting groove and the second annular mounting groove.

[0009] Optionally, a polygonal heat dissipation cavity is provided on the lower side of the circular support plate, the middle part of the polygonal heat dissipation cavity is a hollow cylinder, and a plurality of hollow heat dissipation plates are radially distributed on the outer side of the hollow cylinder, and the hollow heat dissipation plates are connected to the hollow cylinder; a first through hole and a second through hole are provided at the bottom of the hollow cylinder; the first through hole is used for injecting liquid; a glue guide tube connected to the second through hole is provided on the lower side of the first glue injection hole.

[0010] Optionally, the upper side of the circular support plate is coated with a high reflectivity coating.

[0011] Optionally, the first diffuser cover and the second diffuser cover are respectively provided with a first hemispherical protrusion array and a second hemispherical protrusion array on the outside; wherein the hemispherical protrusions are hollow protrusions connected to the inside of the diffuser cover; the first hemispherical protrusion array and the second hemispherical protrusion array are alternately arranged along the radial direction of the radial hemisphere and do not overlap each other.

[0012] Optionally, the side of the first hemispherical protrusion array facing the LED chip is coated with a first phosphor, and the side of the second hemispherical protrusion array facing away from the LED chip is coated with a second phosphor, and the phosphor is used to change the color of the light emitted by the LED; the color of the first phosphor and the second phosphor are the same or different.

[0013] Optionally, the side of the first hemispherical protrusion array facing the LED chip is coated with a variety of phosphors, wherein the phosphors on each first hemispherical protrusion have a different color; the side of the second hemispherical protrusion array facing away from the LED chip is coated with a variety of phosphors, wherein the phosphors on each second hemispherical protrusion have a different color; the phosphors are used to change the color of the light emitted by the LED.

[0014] Optionally, the LED chip is a monochrome chip, and the third transparent colloid is doped with fluorescent powder.

[0015] A method for installing LED lamp beads with high light efficiency and low energy consumption, comprising:

[0016] Step 1: sequentially install the LED chip, the first diffuser, the second diffuser and the transparent protective cover on the upper side of the circular support plate;

[0017] Step 2: Connect the wires of the LED chip to the wiring terminals on the circular support plate through the wire holes; install the rubber tube and the polygonal heat dissipation cavity on the lower side of the circular support plate; install the vibration sensor on the lower side of the circular support plate;

[0018] Step 3: inject the first transparent colloid through the glue guide tube and the first glue injection hole, inject the second transparent liquid through the first through hole and the second liquid injection hole, and inject the third transparent colloid through the third glue injection hole;

[0019] Step 4: Connect the control module with the LED chip and vibration sensor.

[0020] Compared with the prior art, the present invention has achieved the following technical effects:

[0021] 1. The light emitted from the LED chip is transmitted to the outside of the transparent protective cover through the first diffuser and the second diffuser. Due to the decreasing refractive index, the divergence angle of the emitted light is larger and the coverage range is wider; combined with the hemispherical protrusion array on the diffuser, the light scattering is more uniform. The vibration sensor is used to sense external vibration signals. When the vibration intensity sensed within the set time is less than the set threshold, the control module controls the LED lamp beads to automatically enter the sleep state to achieve low energy consumption.

[0022] 2. By coating phosphor on the inner or outer side of the hemispherical protrusion array, the emitted light of a specified wavelength band is converted into a required wavelength band through the phosphor, thereby improving the utilization rate of the emitted light.

[0023] 3. The second transparent liquid connects the polygonal heat dissipation cavity and the surrounding areas of the first diffuser cover and the second diffuser cover, which can accelerate the heat dissipation inside the cover body. The hemispherical protrusion array plays the role of uniform light and increasing the heating area. Good heat dissipation can increase the service life of the phosphor and LED chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a high-light-efficiency, low-energy-consumption LED lamp bead provided by one embodiment of the present invention;

[0025] Figure 2 A schematic diagram of light scattering of a high-light-efficiency, low-energy-consumption LED lamp bead provided in one embodiment of the present invention;

[0026] Figure 3 An exploded schematic diagram of the internal structure of a high-light-efficiency, low-energy-consumption LED lamp bead provided by one embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the internal cross-section of a high-light-efficiency, low-energy-consumption LED lamp bead provided by an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the structure of a circular support plate in a LED lamp bead with high light efficiency and low energy consumption provided by one embodiment of the present invention;

[0029] Figure 6 A schematic diagram of the connection of a circular support plate and some components in a high-light-efficiency, low-energy-consumption LED lamp bead provided by one embodiment of the present invention;

[0030] Figure 7 A schematic diagram of the structure of a polygonal heat dissipation cavity in a LED lamp bead with high light efficiency and low energy consumption provided by one embodiment of the present invention;

[0031] Figure 8 A schematic structural diagram of a light diffuser and a hemispherical protrusion array in a LED lamp bead with high light efficiency and low energy consumption provided by one embodiment of the present invention;

[0032] Fig. 9 A schematic diagram of the positions of a first hemispherical protrusion array and a second hemispherical protrusion array in a high-light-efficiency, low-energy-consumption LED lamp bead provided in one embodiment of the present invention.

[0033] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0035] like Figure 1-9 As shown, an embodiment of the present invention provides a high-light-efficiency and low-energy-consumption LED lamp bead, comprising:

[0036] Transparent protective cover 1, LED chip 2, circular support plate 3, vibration sensor 4, first light diffuser 5 and second light diffuser 6;

[0037] The transparent protective cover 1, the first diffuser cover 5, and the second diffuser cover 6 are all transparent hollow hemispheres with one end open; the opening radius of the transparent protective cover 1 is R1, the opening radius of the second diffuser cover 6 is R2, and the opening radius of the first diffuser cover 5 is R3; wherein R1>R2>R3; the radius of the circular support plate 3 is R0, wherein R0 is greater than R1; the transparent protective cover 1, the first diffuser cover 5, the second diffuser cover 6, and the circular support plate 3 are concentrically arranged; the transparent protective cover 1, the LED chip 2, the first diffuser cover 5, and the second diffuser cover 6 are all arranged on the upper side of the circular support plate 3, wherein the LED chip 2 is arranged inside the first diffuser cover 5, the first diffuser cover 5 is arranged inside the second diffuser cover 6, and the second diffuser cover 6 is arranged inside the transparent protective cover 1;

[0038] The refractive index of the first diffuser 5 is n1, the refractive index of the second diffuser 6 is n2, and the refractive index of the protective cover 1 is n3, wherein n1>n2>n3; a first transparent colloid 8 is filled between the first diffuser 5 and the circular support plate 3, a second transparent liquid 9 is filled between the second diffuser 6 and the first diffuser 5, and a third transparent colloid 10 is filled between the transparent protective cover 1 and the second diffuser 6, wherein the refractive index of the first transparent colloid 8 is n1, the refractive index of the second transparent liquid 9 is n2, and the refractive index of the third transparent colloid 10 is n3;

[0039] The circular support plate 3 is provided with a wire hole 31 connected to the outside, and the wires of the LED chip 2 are connected to the wiring terminals 32 on the circular support plate 3 via the wire hole 31; the control module (not shown) is electrically connected to the LED chip 2 and the vibration sensor 4; the vibration sensor 4 is used to sense external vibration signals, and when the vibration intensity sensed within a set time is less than a set threshold, the control module controls the LED lamp bead to automatically enter a sleep state.

[0040] Optionally, the upper side of the circular support plate 3 is respectively provided with a first annular mounting groove 33 , a second annular mounting groove 34 and a third annular mounting groove 35 which match the sizes of the transparent protective cover 1 , the second diffuser cover 6 and the first diffuser cover 5 .

[0041] Optionally, the circular support plate 3 is respectively provided with a first glue injection hole 36, multiple second glue injection holes 37 and a third glue injection hole 38; the first glue injection hole 36 is located on the inner side of the third annular mounting groove 35; the second glue injection hole 37 is located between the second annular mounting groove 34 and the third annular mounting groove 35, and the third glue injection hole 38 is located between the first annular mounting groove 33 and the second annular mounting groove 34.

[0042] Optionally, a polygonal heat dissipation cavity 7 is provided on the lower side of the circular support plate 3, the middle part of the polygonal heat dissipation cavity 7 is a hollow cylinder 71, and a plurality of hollow heat dissipation plates 72 are radially distributed on the outer side of the hollow cylinder, and the hollow heat dissipation plates 72 are connected to the hollow cylinder 71; a first through hole 73 and a second through hole 74 are provided at the bottom of the hollow cylinder 71; the first through hole 73 is used for injecting liquid; a glue guide tube 361 connected to the second through hole 74 is provided on the lower side of the first glue injection hole 36.

[0043] Optionally, the upper side of the circular support plate 3 is coated with a high reflectivity coating, such as mirror-reflective silver.

[0044] Optionally, the vibration sensor 4 can be replaced by a sound sensor. When the volume sensed within a set time is less than a set threshold, the control module controls the LED lamp bead to automatically enter a sleep state.

[0045] Optionally, the first diffuser 5 and the second diffuser 6 are provided with a first hemispherical protrusion array 51 and a second hemispherical protrusion array 61 on their exteriors, respectively; wherein the hemispherical protrusions are hollow protrusions connected to the interior of the diffuser; the first hemispherical protrusion array 51 and the second hemispherical protrusion array 61 are alternately arranged along the radial direction of the radial hemisphere and do not overlap each other (the top view schematic diagram is shown in FIG. Fig. 9 ).

[0046] Optionally, the first hemispherical protrusion array 51 is coated with a first phosphor on the side facing the LED chip 2, and the second hemispherical protrusion array 61 is coated with a second phosphor on the side facing away from the LED chip 2, and the phosphor is used to change the color of the light emitted by the LED; the color of the first phosphor and the second phosphor may be the same or different.

[0047] Optionally, the side of the first hemispherical protrusion array 51 facing the LED chip 2 is coated with a plurality of phosphors, wherein the phosphor color of each first hemispherical protrusion is different; the side of the second hemispherical protrusion array 61 facing away from the LED chip 2 is coated with a plurality of phosphors, wherein the phosphor color of each second hemispherical protrusion is different; the phosphors are used to change the color of the light emitted by the LED.

[0048] Optionally, the LED chip 2 is a monochrome chip, and the third transparent colloid 10 is doped with fluorescent powder (such as a blue light LED chip, yellow fluorescent powder, and the blue light is scattered by the first scattering cover 5 and the second scattering cover 6 and then irradiated on the third transparent colloid 10, making the irradiation more uniform and improving the fluorescence conversion efficiency).

[0049] Optionally, the transparent protective cover 1 , the first diffuser cover 5 , and the second diffuser cover 6 are made of plastic, glass, quartz, etc.

[0050] An embodiment of the present invention provides a method for installing a high-light-efficiency, low-energy-consumption LED lamp bead, comprising:

[0051] Step 1: sequentially install the LED chip 2, the first diffuser 5, the second diffuser 6 and the transparent protective cover 1 on the upper side of the circular support plate 3;

[0052] Step 2: Connect the wires of the LED chip 2 to the wiring terminals 32 on the circular support plate 3 through the wire holes 31; install the rubber tube 361 and the polygonal heat dissipation cavity 7 on the lower side of the circular support plate 3; install the vibration sensor 4 on the lower side of the circular support plate 3;

[0053] Step 3: inject the first transparent colloid 8 through the glue guide tube 361 and the first glue injection hole 36, inject the second transparent liquid 9 through the first through hole 73 and the second liquid injection hole 37, and inject the third transparent colloid 10 through the third glue injection hole 38;

[0054] Step 4: Connect the control module with the LED chip 2 and the vibration sensor 4.

[0055] The working principle of the LED lamp bead with high light efficiency and low energy consumption: the emitted light of the LED chip is transmitted to the outside of the transparent protective cover 1 through the first diffuser 5 and the second diffuser 6. Due to the decreasing refractive index, the divergence angle of the emitted light is larger and the coverage range is wider; the hemispherical protrusion array on the diffuser is used to make the light scattering more uniform; the second transparent liquid 9 connects the polygonal heat dissipation cavity 7 and the surrounding area of ​​the first diffuser 5 and the second diffuser 6, which can accelerate the heat dissipation inside the cover body. The hemispherical protrusion array plays the role of uniform light and increasing the heating area. Good heat dissipation can increase the service life of the phosphor and LED chip. By coating the phosphor on the inside or outside of the hemispherical protrusion array, the emitted light of the specified band is converted into the required band through the phosphor, thereby improving the utilization rate of the emitted light. The vibration sensor 4 is used to sense the external vibration signal. When the vibration intensity sensed within the set time is less than the set threshold, the control module controls the LED lamp bead to automatically enter the sleep state to achieve low energy consumption.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A high light efficiency and low energy consumption LED lamp bead, comprising: A transparent protective cover, an LED chip, a circular support plate, a vibration sensor, a first diffuser cover, and a second diffuser cover; The transparent protective cover, the first diffuser cover, and the second diffuser cover are all transparent hollow hemispheres with one end open; the opening radius of the transparent protective cover is R1, the opening radius of the second diffuser cover is R2, and the opening radius of the first diffuser cover is R3; wherein R1>R2>R3; the radius of the circular support plate is R0, wherein R0 is greater than R1; the transparent protective cover, the first diffuser cover, the second diffuser cover, and the circular support plate are concentrically arranged; the transparent protective cover, the LED chip, the first diffuser cover, and the second diffuser cover are all arranged on the upper side of the circular support plate, wherein the LED chip is arranged inside the first diffuser cover, the first diffuser cover is arranged inside the second diffuser cover, and the second diffuser cover is arranged inside the transparent protective cover; The refractive index of the first diffuser is n1, the refractive index of the second diffuser is n2, and the refractive index of the protective cover is n3, wherein n1>n2>n3; a first transparent colloid is filled between the first diffuser and the circular support plate, a second transparent liquid is filled between the second diffuser and the first diffuser, and a third transparent colloid is filled between the transparent protective cover and the second diffuser, wherein the refractive index of the first transparent colloid is n1, the refractive index of the second transparent liquid is n2, and the refractive index of the third transparent colloid is n3; A wire hole connected to the outside is provided inside the circular support plate, and the wires of the LED chip are connected to the wiring terminals on the circular support plate via the wire hole; the control module is electrically connected to the LED chip and the vibration sensor; the vibration sensor is used to sense external vibration signals, and when the vibration intensity sensed within a set time is less than a set threshold, the control module controls the LED lamp bead to automatically enter a sleep state.

2. The LED lamp bead according to claim 1, characterized in that: in, The upper side of the circular support plate is respectively provided with a first annular mounting groove, a second annular mounting groove and a third annular mounting groove which match the sizes of the transparent protective cover, the second diffuser cover and the first diffuser cover.

3. The LED lamp bead as claimed in claim 2, characterized in that: in, The circular support plate is respectively provided with a first glue injection hole, multiple second liquid injection holes and a third glue injection hole; the first glue injection hole is located on the inner side of the third annular mounting groove; the second liquid injection hole is located between the second annular mounting groove and the third annular mounting groove, and the third glue injection hole is located between the first annular mounting groove and the second annular mounting groove.

4. The LED lamp bead as claimed in claim 3, characterized in that: in, A polygonal heat dissipation cavity is arranged on the lower side of the circular support plate, the middle part of the polygonal heat dissipation cavity is a hollow cylinder, and a plurality of hollow heat dissipation plates are radially distributed on the outer side of the hollow cylinder, and the hollow heat dissipation plates are connected with the hollow cylinder; a first through hole and a second through hole are opened at the bottom of the hollow cylinder; the first through hole is used for injecting liquid; a glue guide tube connected with the second through hole is arranged on the lower side of the first glue injection hole.

5. The LED lamp bead as claimed in claim 4, characterized in that: in, The upper side of the circular support plate is coated with a high reflectivity coating.

6. The LED lamp bead as claimed in claim 5, characterized in that: in, The first diffuser cover and the second diffuser cover are respectively provided with a first hemispherical protrusion array and a second hemispherical protrusion array on the outside; wherein the hemispherical protrusions are hollow protrusions connected to the inside of the diffuser cover; the first hemispherical protrusion array and the second hemispherical protrusion array are alternately arranged along the radial direction of the radial hemisphere and do not overlap each other.

7. The LED lamp bead as claimed in claim 6, characterized in that: in, The first hemispherical protrusion array is coated with a first phosphor on the side facing the LED chip, and the second hemispherical protrusion array is coated with a second phosphor on the side facing away from the LED chip. The phosphor is used to change the color of the light emitted by the LED; the colors of the first phosphor and the second phosphor are the same or different.

8. The LED lamp bead as claimed in claim 6, characterized in that: in, The side of the first hemispherical protrusion array facing the LED chip is coated with a variety of phosphors, wherein the phosphors on each first hemispherical protrusion have different colors; the side of the second hemispherical protrusion array facing away from the LED chip is coated with a variety of phosphors, wherein the phosphors on each second hemispherical protrusion have different colors; the phosphors are used to change the color of the light emitted by the LED.

9. The LED lamp bead according to claim 6, characterized in that: in, The LED chip is a monochrome chip, and the third transparent colloid is doped with fluorescent powder.

10. A method for installing a high-light-efficiency, low-energy-consumption LED lamp bead according to any one of claims 1 to 9, comprising: Step 1: sequentially install the LED chip, the first diffuser, the second diffuser and the transparent protective cover on the upper side of the circular support plate; Step 2: Connect the wires of the LED chip to the wiring terminals on the circular support plate through the wire holes; install the rubber tube and the polygonal heat dissipation cavity on the lower side of the circular support plate; install the vibration sensor on the lower side of the circular support plate; Step 3: inject the first transparent colloid through the glue guide tube and the first glue injection hole, inject the second transparent liquid through the first through hole and the second liquid injection hole, and inject the third transparent colloid through the third glue injection hole; Step 4: Connect the control module with the LED chip and vibration sensor.

Images