CN201219312Y - Circuit board structure of direct-down type LED back light module unit - Google Patents
Circuit board structure of direct-down type LED back light module unit Download PDFInfo
- Publication number
- CN201219312Y CN201219312Y CNU2008201173648U CN200820117364U CN201219312Y CN 201219312 Y CN201219312 Y CN 201219312Y CN U2008201173648 U CNU2008201173648 U CN U2008201173648U CN 200820117364 U CN200820117364 U CN 200820117364U CN 201219312 Y CN201219312 Y CN 201219312Y
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- China
- Prior art keywords
- circuit board
- down type
- led chip
- led
- strip circuit
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- Expired - Fee Related
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- 239000000463 material Substances 0.000 claims description 19
- 239000004020 conductor Substances 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Images
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Planar Illumination Modules (AREA)
- Led Device Packages (AREA)
Abstract
The utility model relates to a circuit board structure of a full run-down LED backlight module, comprising a case, characterized in that, a plurality of circuit boards in bars are arrayed on the case, one row or one column of LED chips is arranged on the length direction of the circuit boards in bars, the LED chips on each circuit board in bars are electrically connected according to the preset structure of the circuit board in bars, causing a light source circuit board to be slimmer under the premise that the LED light source products reach luminance technical criteria, thereby reducing production cost. Meanwhile, the slimming of the light source circuit board and application of splicing pieces cause mounting convenience of the light source circuit board to be increased greatly, thereby increasing production efficiency of the products.
Description
Technical field
The utility model relates to a kind of full run-down type LED-backlit source module, particularly its board structure of circuit.
Background technology
Led light source has begun to be applied to aspects such as TFT-LCD liquid crystal display, LED illumination, ad decoration at present; With respect to conventional light source, advantage such as that led light source has is energy-conservation, life-span length, environmental protection.Described TFT-LCD LCD according to the position of led light source, is divided into straight-down negative led light source product (light source places the light source product below) and side-light type led light source product (light source places the light source product side).
The light source of side-light type led light source product is positioned over the side (side of light source product or relative both sides) of light source product, adopt light guide plate to carry out light chopper and diffusion, restriction because of light guide plate side effective area, place LED quantity and be restricted, be difficult to reach the index request of required brightness for large-sized light source product.The light source of straight-down negative led light source product is positioned over the below of light source product, because the space is bigger, the placement quantity of LED can be more, therefore can satisfy the luminance index requirement of large scale light source product.
Shown in Figure 1A, Figure 1B, it is the board structure of circuit of known direct-light type LED backlight module, it is block that its circuit board 91 is, make the length direction and the Width of block circuit board 91 all allow plural led chip 92 to place side by side, thus, led chip 92 is arranged on the whole area of circuit board 91, can causes the large usage quantity of block circuit board 91, make production cost too high, thereby cause the whole light source production cost of products too high.Simultaneously, the area that block circuit board 91 is bigger makes circuit board 91 that inconvenience is installed, and also is not easy to the replacing of block circuit board 91, causes the production inefficiency.In addition, circuit board 91 has almost occupied whole bottom surface, has reduced the space of product heat radiation, is unfavorable for the heat radiation of product.
Summary of the invention
At the deficiencies in the prior art, the purpose of this utility model is: a kind of board structure of circuit of full run-down type LED-backlit module is provided, and under the prerequisite that reaches the brightness technical indicator, circuit of light sources plate sliceization, thus reach the purpose that reduces production costs; Simultaneously, the sliceization of circuit of light sources plate and the application of plug connector increase substantially the installation convenience of circuit of light sources plate, thereby reach the purpose that improves production efficient.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of board structure of circuit of full run-down type LED-backlit module, comprise a housing, it is characterized in that: described housing is gone into battle and is shown a plurality of strip circuit boards, the length direction of described strip circuit board is provided with a row or a row led chip, and the preset structure according to described strip circuit board between the led chip on each strip circuit board is electrically connected.
Wherein: be fixed with at least two terminal blocks on described housing, each terminal block is provided with row or two row female plug fittings along its length direction, and each described strip circuit board is electrically connected with the female plug fitting of terminal block with the affixed male plug fitting in its two ends.
Wherein: below the strip circuit board, be provided with light reflecting material with both sides, between strip circuit board and light reflecting material, be filled with transparent heat conducting material, and on strip circuit board and led chip, be filled with transparent heat conducting material, above transparent heat conducting material, also be provided with one deck photodiffusion material.
Wherein: described strip circuit board, terminal block, male plug fitting, female plug fitting, light reflecting material, photodiffusion material and transparent heat conducting material all place the inner chamber of housing.
Wherein: the material of described housing is metal or plastics.
Wherein: described led chip is one group of White LED chip, or adds the yellow fluorescence film by one group of blue led chip and form.
Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be:
1. under the condition of same LED density, adopt the strip circuit board that led chip is set, the usable floor area of its circuit board obviously lacks than block circuit board, has so both guaranteed the technical indicator of light-source brightness, has reduced the production cost of circuit of light sources plate again.
2. because the strip circuit board is to be installed on the described housing by male plug fitting, female plug fitting and terminal block, make that the installation of strip circuit board is simpler, convenient.Certainly, the utility model can not only use in liquid crystal display as backlight, also can use in the LED lighting.
Description of drawings
Figure 1A, Figure 1B are the board structure of circuit schematic diagrames of known direct-light type LED backlight module;
Fig. 2 is the vertical view of the board structure of circuit of the utility model full run-down type LED-backlit module;
Fig. 3 is the side view cutaway drawing of the board structure of circuit of the utility model full run-down type LED-backlit module;
Fig. 4 is a strip circuit board of the present utility model and structural representation after led chip combines;
Fig. 5 is the structural representation that terminal block one side of the present utility model is provided with the female plug fitting;
Fig. 6 is the structural representation that terminal block of the present utility model both sides are provided with the female plug fitting.
Description of reference numerals: housing 10; Strip circuit board 20; Led chip 30; Terminal block 40; Female plug fitting 60; Male plug fitting 50; Light reflecting material 70; Transparent heat conducting material 80; Photodiffusion material 90; Block circuit board 91; Led chip 92.
Embodiment
For shape of the present utility model, structure and characteristics can be understood better, below will and be elaborated to the utility model in conjunction with the accompanying drawings by preferred embodiment.In order to make structure of the present utility model more clear, described accompanying drawing might change actual proportionate relationship in drawing process, and this is not appreciated that the qualification to present patent application.
As shown in Figure 2, it is the vertical view of a preferred embodiment of the utility model " board structure of circuit of full run-down type LED-backlit module ", described board structure of circuit comprises a housing 10, described housing 10 is gone into battle and is shown a plurality of strip circuit boards 20, the length direction of described strip circuit board 20 is provided with a row (perhaps row) led chip 30, and the preset structure according to described strip circuit board 20 between the led chip 30 on each strip circuit board 20 is electrically connected (as shown in Figure 4).
As can be seen from Figure 2: under the condition of same LED density, adopt strip circuit board 20 that led chip 30 is set, the usable floor area of its circuit board obviously lacks than block circuit board 91, has so both guaranteed the technical indicator of light-source brightness, has reduced the production cost of circuit board again.
Please in conjunction with Fig. 2, shown in Figure 3, on described housing 10, be fixed with at least two (in the present embodiment, be to be provided with three) terminal block 40, each terminal block 40 is provided with row (as shown in Figure 5) or two row (as shown in Figure 6) female plug fittings 60 along its length direction, and each strip circuit board 20 is electrically connected with the female plug fitting 60 of terminal block 40 with the affixed male plug fitting 50 in its two ends, to finish the electrical connection of entire circuit plate structure.
Because strip circuit board 20 is to be installed on the described housing 10 by male plug fitting 50, female plug fitting 60 and terminal block 40, make that the installation of strip circuit board 20 is simpler, convenient.Certainly, the utility model can not only use in liquid crystal display as backlight, also can use in the LED lighting.
As shown in Figure 3, the side view cutaway drawing of the board structure of circuit of full run-down type LED-backlit module.From this figure as can be known, terminal block 40 is fixed on the housing 10.Be welded with female plug fitting 60 in the one or both sides of terminal block 40, and be welded with male plug fitting 50 at the two ends of strip circuit board 20, the male plug fitting 50 at the two ends of strip circuit board 20 requires to match with described female plug fitting 60 according to both positive and negative polarity, not only that strip circuit board 20 is fixing, and power supply is provided for the led chip 30 on strip circuit board 20 and the strip circuit board 20.The below of strip circuit board 20 and both sides are placed with light reflecting material 70, led chip 30 is emitted beam upwards reflect.Between strip circuit board 20 and light reflecting material 70, be filled with transparent heat conducting material 80, and on strip circuit board 20 and led chip 30, be filled with transparent heat conducting material 80, the heat that led chip 30 sends can be conducted.Above transparent heat conducting material 80, also be provided with one deck photodiffusion material 90, be used for the light that led chip 30 sends is carried out the light diffusion, to improve the uniformity of light-source brightness.
In the foregoing description, described strip circuit board 20, terminal block 40, male plug fitting 50, female plug fitting 60, light reflecting material 70, transparent heat conducting material 80 and photodiffusion material 90 all place the inner chamber of housing 10, housing 10 or made by metal or plastics.
In the foregoing description, described led chip 30 can be one group of White LED chip, also can add the yellow fluorescence film by one group of blue led chip and form.
In the foregoing description, shown male plug fitting 50 is simple in structure with female plug fitting 60, is similar to the structure of general family expenses two-pin plug and socket, therefore, does not draw in detail in the accompanying drawings, should not influence those skilled in the art's understanding.
More than explanation is just illustrative for the utility model; and nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications, variation or equivalence, but all will fall within the protection range of the present utility model.
Claims (6)
1. the board structure of circuit of a full run-down type LED-backlit module, comprise a housing, it is characterized in that: described housing is gone into battle and is shown a plurality of strip circuit boards, the length direction of described strip circuit board is provided with a row or a row led chip, and the preset structure according to described strip circuit board between the led chip on each strip circuit board is electrically connected.
2. the board structure of circuit of full run-down type LED-backlit module according to claim 1, it is characterized in that: on described housing, be fixed with at least two terminal blocks, each terminal block is provided with row or two row female plug fittings along its length direction, and each described strip circuit board is electrically connected with the female plug fitting of terminal block with the affixed male plug fitting in its two ends.
3. the board structure of circuit of full run-down type LED-backlit module according to claim 1, it is characterized in that: below the strip circuit board, be provided with light reflecting material with both sides, between strip circuit board and light reflecting material, be filled with transparent heat conducting material, and on strip circuit board and led chip, be filled with transparent heat conducting material, above transparent heat conducting material, also be provided with one deck photodiffusion material.
4. the board structure of circuit of full run-down type LED-backlit module according to claim 3 is characterized in that: described strip circuit board, terminal block, male plug fitting, female plug fitting, light reflecting material, photodiffusion material and transparent heat conducting material all place the inner chamber of housing.
5. according to the board structure of circuit of claim 1 or 3 described full run-down type LED-backlit modules, it is characterized in that: the material of described housing is metal or plastics.
6. the board structure of circuit of full run-down type LED-backlit module according to claim 1 is characterized in that: described led chip is one group of White LED chip, or adds the yellow fluorescence film by one group of blue led chip and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201173648U CN201219312Y (en) | 2008-06-23 | 2008-06-23 | Circuit board structure of direct-down type LED back light module unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201173648U CN201219312Y (en) | 2008-06-23 | 2008-06-23 | Circuit board structure of direct-down type LED back light module unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201219312Y true CN201219312Y (en) | 2009-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201173648U Expired - Fee Related CN201219312Y (en) | 2008-06-23 | 2008-06-23 | Circuit board structure of direct-down type LED back light module unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201219312Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750911A (en) * | 2012-07-10 | 2012-10-24 | 深圳市华星光电技术有限公司 | LED (light emitting diode) backlight driving circuit, backlight module and liquid crystal display device |
| CN106019705A (en) * | 2016-06-15 | 2016-10-12 | 芜湖聚飞光电科技有限公司 | Direct type backlight bar set, manufacturing method thereof, spliced screen unit and spliced screen |
-
2008
- 2008-06-23 CN CNU2008201173648U patent/CN201219312Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750911A (en) * | 2012-07-10 | 2012-10-24 | 深圳市华星光电技术有限公司 | LED (light emitting diode) backlight driving circuit, backlight module and liquid crystal display device |
| CN102750911B (en) * | 2012-07-10 | 2015-11-25 | 深圳市华星光电技术有限公司 | A kind of LED backlight drive circuit, backlight module and liquid crystal indicator |
| CN106019705A (en) * | 2016-06-15 | 2016-10-12 | 芜湖聚飞光电科技有限公司 | Direct type backlight bar set, manufacturing method thereof, spliced screen unit and spliced screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20150623 |
|
| EXPY | Termination of patent right or utility model |