CN206929561U - A kind of fixed structure of the COB ceramic substrates of UVLED light sources - Google Patents
A kind of fixed structure of the COB ceramic substrates of UVLED light sources Download PDFInfo
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- CN206929561U CN206929561U CN201720352335.9U CN201720352335U CN206929561U CN 206929561 U CN206929561 U CN 206929561U CN 201720352335 U CN201720352335 U CN 201720352335U CN 206929561 U CN206929561 U CN 206929561U
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- Prior art keywords
- ceramic substrates
- cob
- light sources
- heat sink
- fixed structure
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- 239000000919 ceramic Substances 0.000 title claims abstract description 52
- 239000000758 substrate Substances 0.000 title claims abstract description 52
- 239000002184 metal Substances 0.000 claims abstract description 30
- 230000007704 transition Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004020 luminiscence type Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000012634 fragment Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Abstract
The utility model discloses a kind of fixed structure of the COB ceramic substrates of UVLED light sources.The fixed structure of the COB ceramic substrates of the UVLED light sources is used for the surface that COB ceramic substrates (10) are positioned to metal heat sink (20).Multiple Location resilient pieces (30) are provided with metal heat sink (20), multiple Location resilient pieces (30) are distributed in the surrounding of COB ceramic substrates (10), wherein, the first end (36) of each Location resilient piece (30) is fixedly installed on metal heat sink (20), and the second end (32) relative with first end (36) of each Location resilient piece (30) is pressed on the upper surface of COB ceramic substrates (10).The fixed structure of the COB ceramic substrates of UVLED light sources of the present utility model uses multiple Location resilient pieces, and pressure is strong, good fixing effect, it is important that fixed effect by COB ceramic substrates and the thermal expansion influence of metal heat sink, does not avoid ceramic substrate from being torn damage.
Description
Technical field
The utility model belongs to UVLED light source heat radiations field, more particularly to a kind of COB ceramic substrates of UVLED light sources
Fixed structure.
Background technology
UVLED is UV LED, is LED one kind, and wave-length coverage is：10-400nm.PCB manufacture in, it is necessary to
PCB surface is exposed or solidified using UVLED light sources etc., to carry out pattern transfer.For example, for be coated with film or
PCB surface as the colored ink of insulating barrier to it, it is necessary to be exposed so that ink setting solidifies.UVLED light sources are in work
Substantial amounts of heat can be produced during work, in order to prevent heat from excessively causing the luminescence unit of light source, such as UV LED chip array
Temperature is too high, it is necessary to take measures to radiate to luminescence unit.COB (chip On board) ceramic substrate of UV LED chip
It is fixed on metal heat sink, metal heat sink is gone out heat Quick diffusing by water cooling and air-cooled mode, so as to suppress
The temperature of luminescence unit rises.
Utility model content
As shown in figure 4, COB ceramic substrates 10p each corner is fixed on metal heat sink 20p by screw 30p.By
Inventor, which studies and screened with keen determination, just to be found, due to COB ceramic substrates and the thermal coefficient of expansion of metal heat sink that is in contact not
Together, ceramic substrate is torn after heating a period of time, is caused product rejection, is caused economic loss.
The purpose of this utility model is, there is provided a kind of fixed structure of the COB ceramic substrates of UVLED light sources, it can
Avoid above mentioned problem.
The utility model is achieved through the following technical solutions：A kind of fixed structure of the COB ceramic substrates of UVLED light sources,
For COB ceramic substrates to be positioned to the surface of metal heat sink, multiple Location resilient pieces are provided with metal heat sink, it is multiple
Location resilient piece is distributed in the surrounding of COB ceramic substrates, wherein, the first end of each Location resilient piece is fixedly installed on metal heat sink
On, the second end relative with first end of each Location resilient piece is pressed on the upper surface of COB ceramic substrates.
As the further improvement of above-mentioned technical proposal, each Location resilient piece also include positioned at first end and the second end it
Between П type transition parts.
As the further improvement of above-mentioned technical proposal, fixing hole is provided with the first end of each Location resilient piece, it is each fixed
Position shell fragment is fixedly installed on the inside of metal heat sink by the fixing hole.
As the further improvement of above-mentioned technical proposal, each Location resilient piece is formed in one metalwork.
The beneficial effects of the utility model are：The fixed structure of the COB ceramic substrates of UVLED light sources of the present utility model
In, using multiple Location resilient pieces, pressure is strong, good fixing effect, it is important that fixed effect is not by COB ceramic substrates and metal
The thermal expansion influence of radiator, ceramic substrate is avoided to be torn damage, without such economic loss.
Brief description of the drawings
Fig. 1 is shown according to the section of the fixed structure of the COB ceramic substrates of the UVLED light sources of embodiment of the present utility model
It is intended to；
Fig. 2 is the positioning bullet according to the fixed structure of the COB ceramic substrates of the UVLED light sources of embodiment of the present utility model
The schematic perspective view of piece；
Fig. 3 is the positioning bullet according to the fixed structure of the COB ceramic substrates of the UVLED light sources of embodiment of the present utility model
The floor map of piece；
Fig. 4 is the diagrammatic cross-section of the fixed structure of the COB ceramic substrates of known UVLED light sources；
Fig. 5 is according to the vertical of the fixed structures of the COB ceramic substrates of the UVLED light sources of Application Example of the present utility model
Body schematic diagram；
10-COB ceramic substrates；20- metal heat sinks；30- Location resilient pieces；32- the second ends；34- П type transition parts；
36- first ends；38- fixing holes.
Embodiment
Below in conjunction with accompanying drawing in embodiment of the present utility model, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.The component of the utility model embodiment being generally described and illustrated herein in the accompanying drawings can be with a variety of configurations
To arrange and design.Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit below
The claimed the scope of the utility model of system, but it is merely representative of selected embodiment of the present utility model.It is new based on this practicality
The embodiment of type, the every other embodiment that those skilled in the art are obtained on the premise of creative work is not made,
Belong to the scope of the utility model protection.
Fig. 1 is shown according to the section of the fixed structure of the COB ceramic substrates of the UVLED light sources of embodiment of the present utility model
It is intended to.COB (chip On board) ceramic substrate 10 of UV LED chip is fixed on metal heat sink 20.Metal heat sink 20
Heat Quick diffusing is gone out by water cooling and air-cooled mode again, risen so as to suppress the temperature of luminescence unit.
In a kind of fixed structure that inventor knows, as shown in figure 4, COB ceramic substrates 10p each corner passes through screw
30p is fixed on metal heat sink 20p.Study and screen with keen determination by inventor just find, just because of COB ceramic substrates with
The thermal coefficient of expansion for the metal heat sink being in contact is different, and ceramic substrate is torn after a period of time of generating heat, and causes product rejection,
Cause economic loss.This discovery procedure just obtains by creative work in itself, belongs to the scope of the utility model protection.
Inventor further studies the fixed structure of the COB ceramic substrates of the UVLED light sources drawn in Fig. 1.
As shown in figure 1, the fixed structure of the COB ceramic substrates of the UVLED light sources is used to COB ceramic substrates 10 being positioned at
On the surface of metal heat sink 20, not by COB ceramic substrates and the thermal expansion influence of metal heat sink, ceramic substrate is avoided to be torn
Rhegma is bad.
As shown in figure 5, in a concrete application example, the cross section of metal heat sink 20 is trapezoidal, can be flowed inside it
Logical cooling water.COB ceramic substrates 10, which are gone into battle, shows a large amount of UVLED light sources 40.
As shown in Fig. 2 multiple Location resilient pieces 30 are provided with metal heat sink 20.Multiple Location resilient pieces 30 are distributed in COB
The surrounding of ceramic substrate 10, wherein, the first end 36 of each Location resilient piece 30 is fixedly installed on metal heat sink 20, each positioning
The second end 32 relative with first end 36 of shell fragment 30 is pressed on the upper surface of COB ceramic substrates 10.
Thus, even if the thermal coefficient of expansion of metal heat sink 20 is different from the thermal coefficient of expansion of COB ceramic substrates 10, also not
COB ceramic substrates 10 can be caused to be torn and damaged.
As shown in Fig. 2 in the present embodiment, each Location resilient piece 30 also include positioned at first end 36 and the second end 32 it
Between П types transition part 34.Pass through the advance bending of П types transition part 34, it is ensured that apply on COB ceramic substrates predetermined
Pressure.
As shown in figure 3, in the present embodiment, fixing hole 38 is provided with the first end 36 of each Location resilient piece 30, it is each fixed
Position shell fragment 30 is fixedly installed on the inside of metal heat sink 20 by the fixing hole 38.
As shown in Figures 2 and 3, in the present embodiment, each Location resilient piece 30 is integrally formed metal for the high-tension of customization
Part.
In the description of embodiment of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ",
" length ", " width ", " thickness ", " height ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ",
The orientation or position relationship of the instruction such as " bottom ", " interior ", " outer ", " clockwise ", " counterclockwise " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of description embodiment of the present utility model and simplifies description, rather than indicates or imply and be signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
The limitation of new embodiment.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means the tool with reference to the embodiment or example description
Body characteristicses, structure, material or feature are contained at least one embodiment or example of the present utility model.In this specification
In, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, the specific spy of description
Sign, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle and objective of the present utility model, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
In description of the present utility model, it is to be understood that term " first ", " second " etc. are only used for describing purpose,
And it is not intended that instruction or hint relative importance.For the ordinary skill in the art, can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.In addition, in description of the present utility model, it is unless otherwise indicated, " more
It is individual " it is meant that two or more.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle and objective of the present utility model, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (4)
- A kind of 1. fixed structure of the COB ceramic substrates of UVLED light sources, for COB ceramic substrates to be positioned at into metal heat sink Surface on, it is characterised in that be provided with multiple Location resilient pieces on metal heat sink, multiple Location resilient pieces are distributed in COB ceramics The surrounding of substrate, wherein, the first end of each Location resilient piece is fixedly installed on metal heat sink, each Location resilient piece with first The relative the second end in end is pressed on the upper surface of COB ceramic substrates.
- 2. the fixed structure of the COB ceramic substrates of UVLED light sources according to claim 1, it is characterised in that respectively position bullet Piece also includes the П type transition parts between first end and the second end.
- 3. the fixed structure of the COB ceramic substrates of UVLED light sources according to claim 2, it is characterised in that respectively position bullet Fixing hole is provided with the first end of piece, each Location resilient piece is fixedly installed on the inside of metal heat sink by the fixing hole.
- 4. the fixed structure of the COB ceramic substrates of UVLED light sources according to claim 2, it is characterised in that respectively position bullet Piece is formed in one metalwork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720352335.9U CN206929561U (en) | 2017-04-06 | 2017-04-06 | A kind of fixed structure of the COB ceramic substrates of UVLED light sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720352335.9U CN206929561U (en) | 2017-04-06 | 2017-04-06 | A kind of fixed structure of the COB ceramic substrates of UVLED light sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206929561U true CN206929561U (en) | 2018-01-26 |
Family
ID=61350579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720352335.9U Expired - Fee Related CN206929561U (en) | 2017-04-06 | 2017-04-06 | A kind of fixed structure of the COB ceramic substrates of UVLED light sources |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206929561U (en) |
-
2017
- 2017-04-06 CN CN201720352335.9U patent/CN206929561U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |