CN216354273U - LED light source and LED display device - Google Patents
LED light source and LED display device Download PDFInfo
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- CN216354273U CN216354273U CN202122372990.XU CN202122372990U CN216354273U CN 216354273 U CN216354273 U CN 216354273U CN 202122372990 U CN202122372990 U CN 202122372990U CN 216354273 U CN216354273 U CN 216354273U
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Abstract
The utility model provides an LED light source and an LED display device, wherein the LED light source comprises: the bracket comprises a light-permeable bracket body and fluorescent powder doped in the bracket body; the LED chip is arranged on the bracket; the fixing structure comprises a light-permeable fixing structure body and fluorescent powder doped in the fixing structure body, wherein the fixing structure body is connected with the bracket and wraps the LED chip together with the bracket; the lens comprises a lens body and fluorescent powder doped in the lens body, wherein the lens body is connected with the bracket and covers the LED chip; the LED display device is provided with the LED light source; by adopting the technical scheme, the support, the fixing structure and the lens are not mainly used as the supporting surface and the protective shell of the LED chip, but are used as the protective shell which is coated on the light emitting unit of the LED chip and has the light emitting surface, so that the technical scheme reduces the cost and the thermal resistance of the LED light source and improves the heat dissipation performance.
Description
Technical Field
The utility model relates to the technical field of LED display, in particular to an LED light source and an LED display device.
Background
With the development of science and technology, LED display devices have been widely used in various illumination fields by virtue of their advantages of high luminous efficiency, low power consumption, no need of high voltage, high safety, etc. The service life of the LED display device is directly related to the working temperature of the node, only about 50% of electric energy is converted into light energy in the working process of the LED display device at present, and the rest of electric energy is almost converted into heat energy, so that the temperature of the LED display device is increased, and the reliability of the LED display device is reduced by half when the temperature is increased by 10 ℃. Heat dissipation is a big problem. If the heat dissipation is not good, the performance and the stability of the LED display device are directly reduced, and meanwhile, the life of the LED display device is affected by serious light attenuation caused by the poor heat dissipation.
Reducing the thermal resistance of packaging and assembly can effectively improve the performance and reliability of the device. In the existing packaging technology, a chip is fixed on a bracket or a substrate, which can increase the thermal resistance from the chip to a circuit board, and if the bracket or the substrate can be removed, fewer process steps and fewer materials can be used, so that the cost is reduced, the thermal resistance is reduced, and the thickness of a system is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an LED light source and an LED display device, and aims to solve the technical problem that the LED display device in the prior art is poor in heat dissipation performance due to high thermal resistance.
In order to achieve the above object, the present invention adopts a technical solution that is an LED light source, including:
the bracket comprises a light-permeable bracket body and fluorescent powder doped in the bracket body;
the LED chip is arranged on the bracket;
the fixing structure comprises a light-permeable fixing structure body and fluorescent powder doped in the fixing structure body, and the fixing structure body is connected with the bracket and wraps the LED chip together with the bracket;
the lens comprises a lens body and fluorescent powder doped in the lens body, wherein the lens body is connected with the support and covers the LED chip.
By adopting the technical scheme, the bracket, the fixing structure and the lens are made of the light-transmitting materials, and the fluorescent powder is doped in the bracket, the fixing structure and the lens to enable the lens to be excited to emit light rays with different colors.
It should be further explained that the stent may be formed by injection molding or etching with a mold after being doped with phosphor powder, or by injection molding or etching after being doped with phosphor powder, or by doping inorganic light-transmitting material such as soda lime glass, silicate glass, sapphire glass, or the like with phosphor powder.
In one embodiment, the top of the LED chip is provided with an electrical connection point, and the electrical connection point is electrically connected with the bracket through a connection wire.
By adopting the technical scheme, the LED chip is arranged on the bracket in a normal mounting mode, and the driving current and the heat productivity of the packaged LED chip are relatively small.
In one embodiment, the bottom of the LED chip is provided with a connecting contact which is electrically connected with the electric connector of the bracket.
By adopting the technical scheme, the LED chip is arranged on the support in an inverted mode, the connecting contact of the LED chip is positioned at the bottom of the LED chip, namely the electrode is arranged downwards, and in the welding process with the support, the bonding welding process in the normal assembling process is not needed, so that the packaging efficiency of the LED chip is greatly improved.
In one embodiment, the support is provided with a containing groove, the LED chip is arranged on a bottom groove wall of the containing groove, and the fixing structure is filled in the containing groove.
By adopting the technical scheme, the LED chip can be arranged in the accommodating groove, so that the protection performance of the LED chip is improved, and meanwhile, light rays emitted by the LED chip can penetrate through the groove wall of the accommodating groove to enter the bracket so as to excite the fluorescent powder; in addition, fixed knot constructs to be filled in the storage tank, and fixed knot constructs and is used for sealed and fixed LED chip, avoids LED chip direct and air and moisture contact, causes the ageing or the inefficacy of LED chip, also fixes the LED chip on the support simultaneously, has improved the stability and the durability of LED chip.
In one embodiment, the depth of the accommodating groove is greater than the height of the LED chip.
Through adopting above-mentioned technical scheme for in the light that the LED chip sent towards the side direction all can pierce through the cell wall entering support of storage tank, and then arouse phosphor powder, the degree of depth of storage tank is greater than the height of LED chip simultaneously, makes the storage tank notch part of support highly be greater than the height of LED chip on the top of support, also is favorable to the setting of lens, and lens only need cover locate the support top can.
In one embodiment, the surface of the fixing structure body exposed to the accommodating groove is flush with the top surface of the bracket body.
By adopting the technical scheme, the surface of the fixed structure body exposed in the accommodating groove is flush with the top surface of the support body, namely the top surface of the fixed structure body is flush with the top surface of the support body, so that the top surface of the fixed structure body is in smooth transition with the top surface of the support body, the lens body is easier to fix on the fixed structure body and the support body, and the processing difficulty is reduced.
In one embodiment, the lens is shaped as a hemisphere or hemisphere-like body.
By adopting the technical scheme, the light rays emitted by the LED chip are emitted towards different directions through the scattering of the lens, and the emission angle of the light rays of the LED chip is increased by the lens of the hemisphere or the similar hemisphere, so that the light-emitting angle of the LED chip is enlarged.
In one embodiment, the side of the bracket is provided with a pad.
By adopting the technical scheme, the bonding pads on the bracket are used for being electrically connected with the bonding pads of the adjacent bracket, namely, the two adjacent LED light sources are mutually connected in series or in parallel through the bonding pads, and the bonding pads are positioned on the side part of the bracket, so that the two adjacent LED light sources are conveniently welded.
In one embodiment, the bottom of the bracket is provided with a pad.
Through adopting above-mentioned technical scheme, the pad on the support is used for being connected with the base plate electricity, and can set up a plurality of LED light sources on the base plate, and a plurality of supports set up on same base plate promptly, and the pad is located the bottom of support, is convenient for with the electricity of base plate be connected.
The embodiment also provides an LED display device, which comprises a plurality of the above LED light sources, and the plurality of LED light sources are connected with each other.
By adopting the technical scheme, the bracket, the fixing structure and the lens are made of the light-transmitting materials, and the fluorescent powder is doped in the bracket, the fixing structure and the lens to enable the lens to be excited to emit light rays with different colors.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a first cross-sectional view of an LED light source provided by an embodiment of the present invention;
fig. 2 is a second cross-sectional view of an LED light source according to an embodiment of the present invention.
The figures are numbered:
100-an LED light source;
1-a scaffold; 2-LED chip; 3-a lens; 4-fluorescent powder; 5-connecting a wire; 6-a fixed structure; 7-a pad;
11-a stent body; 21-electrical connection points; 22-connecting contacts; 31-a lens body; 61-a fixed structural body;
10-a receiving groove.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected or indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the utility model, and do not indicate that the device or component must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as indicating a number of technical features.
In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The following describes a specific implementation of the present invention in more detail with reference to specific embodiments:
as shown in fig. 1 and fig. 2, an embodiment of the present invention provides an LED light source 100, including: the LED lamp comprises a support 1, an LED chip 2, a fixing structure 6 and a lens 3;
the bracket 1 comprises a bracket body 11 and fluorescent powder 4 doped in the bracket body 11;
the LED chip 2 is arranged on the bracket 1;
the fixing structure 6 comprises a light-permeable fixing structure body 61 and fluorescent powder 4 doped in the fixing structure body, wherein the fixing structure body 61 is connected with the support 1 and wraps the LED chip 2 together with the support 1;
the lens 3 includes a lens body 31 and phosphor 4 doped in the lens body 31, and the lens body 31 is connected to the support 1 and covers the LED chip 2.
The operating principle of the LED light source 100 of the present embodiment is as follows:
By adopting the technical scheme, the bracket 1, the fixing structure 6 and the lens 3 are made of light-transmitting materials, and the fluorescent powder 4 is doped in the bracket 1, the fixing structure 6 and the lens 3 to enable the bracket to be excited to emit light rays with different colors, because the bracket 1, the fixing structure 6 and the lens 3 are not mainly used as a supporting surface and a protective shell of the LED chip 2, but used as a protective shell which is coated on a light-emitting unit of the LED chip 2 and has a light-emitting surface, the technical scheme reduces the cost and the thermal resistance of the LED light source 100 and improves the heat dissipation performance.
It should be further explained that the holder body 11 and the lens body 31 can be made of organic light-transmitting materials such as Polycarbonate (PC), polypropylene (PP), polymethyl methacrylate (PMMA), organic silica gel, etc., and the phosphor 4 is doped therein, and then the holder body is formed by injection molding or etching, or inorganic light-transmitting materials such as soda lime glass, silicate glass, sapphire glass, etc. are doped with phosphor, and then the holder body and the lens body are formed by processing or etching.
In one embodiment, the top of the LED chip 2 is provided with an electrical connection point 21, and the electrical connection point 21 is electrically connected to the support 1 through a connection wire 5.
By adopting the technical scheme, the LED chip 2 is arranged on the bracket 1 in a normal installation mode, and the LED chip 2 is packaged to have smaller driving current and smaller heat productivity.
As shown in fig. 2, in one embodiment, the bottom of the LED chip 2 is provided with connection contacts 22, and the connection contacts 22 are electrically connected with the electrical connections of the support 1.
By adopting the technical scheme, the LED chip 2 is installed on the support 1 in an inverted mode, the connecting contact 22 of the LED chip 2 is positioned at the bottom of the LED chip 2, namely, the electrode is arranged downwards, and in the welding process with the support 1, the bonding welding process in the normal installation process is not needed, so that the packaging efficiency of the LED chip 2 is greatly improved.
In one embodiment, the bracket 1 is provided with a receiving groove 10, the LED chip 2 is disposed on a bottom wall of the receiving groove 10, and the fixing structure 6 is filled in the receiving groove 10.
By adopting the technical scheme, the LED chip 2 can be arranged in the accommodating groove 10, so that the protection performance of the LED chip 2 is improved, and meanwhile, light rays emitted by the LED chip 2 can penetrate through the groove wall of the accommodating groove 10 to enter the bracket 1, so that the fluorescent powder 4 is excited; in addition, fixed knot constructs 6 and fills in storage tank 10, and fixed knot constructs 6 and is used for sealed and fixed LED chip 2, avoids LED chip 2 direct and air and moisture contact, causes the ageing or the inefficacy of LED chip 2, also fixes LED chip 2 on support 1 simultaneously, has improved LED chip 2's stability and durability.
In one embodiment, the depth of the accommodating groove 10 is greater than the height of the LED chip 2.
Through adopting above-mentioned technical scheme, make LED chip 2 towards the cell wall that the side direction sent all can pierce through storage tank 10 get into fixed knot construct 6 and support 1 in, and then arouse phosphor powder 4, the degree of depth of storage tank 10 is greater than LED chip 2's height simultaneously, make the storage tank 10 notch part of support 1 highly be greater than LED chip 2's height on the top of support 1 promptly, also be favorable to lens 3's setting, lens 3 only need the lid locate support 1 top can.
In one embodiment, the surface of the fixing structure body 61 exposed to the accommodating groove 10 is flush with the top surface of the bracket body 11.
By adopting the above technical scheme, the surface of the fixed structure body 61 exposed in the accommodating groove 10 is flush with the top surface of the bracket body 11, that is, the top surface of the fixed structure body 61 is flush with the top surface of the bracket body 11, so that the top surface of the fixed structure body 61 is in smooth transition with the top surface of the bracket body 11, the lens body is easier to fix on the fixed structure body 61 and the bracket body 11, and the difficulty of processing is reduced.
In one embodiment, the lens 3 is shaped as a hemisphere or hemisphere-like body.
By adopting the technical scheme, the light rays emitted by the LED chip 2 are scattered by the lens 3 and emitted towards different directions, and the lens 3 of the hemisphere or the similar hemisphere increases the light emitting angle of the LED chip 2 and enlarges the light emitting angle of the LED chip 2.
Referring again to fig. 1, in one embodiment, the side of the frame 1 is provided with a bonding pad 7.
By adopting the technical scheme, the bonding pads 7 on the bracket 1 are used for being electrically connected with the bonding pads 7 of the adjacent bracket 1, namely, the two adjacent LED light sources 100 are mutually connected in series or in parallel through the bonding pads 7, and the bonding pads 7 are positioned on the side part of the bracket 1, so that the two adjacent LED light sources 100 can be conveniently welded.
Referring again to fig. 2, in one embodiment, the bottom of the frame 1 is provided with a bonding pad 7.
By adopting the above technical scheme, the bonding pad 7 on the support 1 is used for being electrically connected with the substrate, and the substrate can be provided with a plurality of LED light sources 100, i.e. a plurality of supports 1 are arranged on the same substrate, and the bonding pad 7 is located at the bottom of the support 1, so as to be conveniently electrically connected with the substrate.
The present embodiment further provides an LED display device, which includes a plurality of LED light sources 100 as described above, and the plurality of LED light sources 100 are connected to each other.
By adopting the technical scheme, the bracket 1, the fixing structure 6 and the lens 3 are made of light-transmitting materials, and the fluorescent powder 4 is doped in the bracket 1, the fixing structure 6 and the lens 3 to enable the bracket to be excited to emit light rays with different colors, because the bracket 1, the fixing structure 6 and the lens 3 are not mainly used as a supporting surface and a protective shell of the LED chip 2, but used as a protective shell which is coated on a light-emitting unit of the LED chip 2 and has a light-emitting surface, the technical scheme reduces the cost and the thermal resistance of the LED light source 100 and improves the heat dissipation performance.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.
Claims (10)
1. An LED light source, comprising:
the bracket comprises a light-permeable bracket body and fluorescent powder doped in the bracket body;
the LED chip is arranged on the bracket;
the fixing structure comprises a light-permeable fixing structure body and fluorescent powder doped in the fixing structure body, and the fixing structure body is connected with the bracket and wraps the LED chip together with the bracket;
the lens comprises a lens body and fluorescent powder doped in the lens body, wherein the lens body is connected with the support and covers the LED chip.
2. The LED light source of claim 1 wherein the top of the LED chip is provided with electrical connection points, and the electrical connection points are electrically connected to the support via connection wires.
3. The LED light source of claim 1 wherein the bottom of the LED chip is provided with connection contacts that are electrically connected to the electrical connections of the support.
4. The LED light source of claim 1 wherein the frame has a receiving cavity, the LED chip is disposed on a bottom wall of the receiving cavity, and the fixing structure is filled in the receiving cavity.
5. The LED light source as claimed in claim 4, wherein the depth of the receiving groove is greater than the height of the LED chip.
6. The LED light source as claimed in claim 4, wherein the surface of the fixing structure body exposed out of the receiving groove is flush with the top surface of the bracket body.
7. The LED light source of claim 1 wherein the lens is hemispherical or hemispheroid in shape.
8. LED light source as claimed in any of the claims 1 to 7, characterized in that the side of the holder is provided with pads.
9. The LED light source of any of claims 1 to 7 wherein the bottom of the support is provided with a solder pad.
10. An LED display device comprising a plurality of LED light sources according to any one of claims 1 to 9, the plurality of LED light sources being connected to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122372990.XU CN216354273U (en) | 2021-09-29 | 2021-09-29 | LED light source and LED display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122372990.XU CN216354273U (en) | 2021-09-29 | 2021-09-29 | LED light source and LED display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216354273U true CN216354273U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122372990.XU Active CN216354273U (en) | 2021-09-29 | 2021-09-29 | LED light source and LED display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216354273U (en) |
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2021
- 2021-09-29 CN CN202122372990.XU patent/CN216354273U/en active Active
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