CN202838852U - Light-emitting diode (LED) display unit box body - Google Patents
Light-emitting diode (LED) display unit box body Download PDFInfo
- Publication number
- CN202838852U CN202838852U CN 201220496144 CN201220496144U CN202838852U CN 202838852 U CN202838852 U CN 202838852U CN 201220496144 CN201220496144 CN 201220496144 CN 201220496144 U CN201220496144 U CN 201220496144U CN 202838852 U CN202838852 U CN 202838852U
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- led display
- display unit
- box body
- ground connection
- led
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Abstract
The utility model discloses a light-emitting diode (LED) display unit box body which comprises a box body frame and a plurality of LED display modules. A plurality of module installation holes are formed in the surface of one side of the box body frame, the LED display modules are arranged in the module installation holes and form a display face of the LED display unit box body in an array mode. A circle of electro magnetic compatibility (EMC) sides which is taken as a grounding end is arranged on the periphery of circuit boards of the LED display modules, grounding folded sides are arranged on the box body frame, and the grounding folded sides are arranged on the periphery of the module installation holes, and the grounding folded sides are in electrical connection with the EMC sides. According to the LED display unit box body, the grounding folded sides are arranged on the box body frame, the EMC sides of the LED display modules are directly and electrically connected with the box body frame through the grounding folded sides and are connected to the ground, compared with the manner of ground connection by spraying conducting paint on shell bodies of modules, ground connection is reliable and stable, and therefore, the LED display unit box body has good and stable electromagnetic shielding performance.
Description
Technical field
The utility model relates to LED display technique field, is specifically related to a kind of led display unit casing.
Background technology
In the last few years, the development of LED display technique was rapid, and LED display has obtained application in many places.Present LED display generally includes a plurality of led display unit casings, thereby the led display unit casing, is the key of LED display.Present led display unit casing is rectangular parallelepiped usually, comprises that box frame and the some LED that are arranged on the box frame show modules.Be used on the box frame surface that LED shows module is installed, usually be provided with several module mounting holes.LED shows that module is that correspondence is arranged on described module mounting hole place, and array becomes the display surface of led display unit casing.
Because every country is all having strict management and control, the electronic product that radiation exceeds standard to be limited to sell aspect the electronic product radiation, so led display unit casing electromagnetic radiation performance, is an important indicator weighing its quality always.In order to reduce electromagnetic radiation, each LED shows that module needs ground connection usually.In the led display unit casing, LED shows the earthing mode of module at present, normally shows that at LED the periphery of mould-group circuit-board arranges a circle EMC limit as earth terminal.If this whole circle in EMC limit can both reliably be electrically connected with the box frame of led display unit casing, then usually can reach good effectiveness, greatly reduce electromagnetic radiation.
In the prior art, by spraying conductive paint at the module drain pan, the EMC limit indirectly contacts and is electrically connected with the box frame of led display unit casing by contacting with conductive paint on the module drain pan.Thereby the conductive paint on the module drain pan can have a huge impact the electromagnetic radiation performance of led display unit casing.Yet unfortunately existing conductive paint all adopts, and contains the conductive fluid of metal powder.Because the unevenness of spraying, and this nonunf ormity in conductive paint of metal powder, be difficult to guarantee that the conduction enamelled coating electric conductivity on the module drain pan is stable, thereby the ground connection performance is not ideal enough when doing the ground connection use, cause the radiance index stable not, in time, has and exceeds standard.
In sum, in the existing led display unit casing, the ground connection performance of LED module is stable not, thereby causes the capability of electromagnetic shielding of led display unit casing good not, stable not in other words, needs to improve.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of led display unit casing, and it has better, more stable capability of electromagnetic shielding.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of led display unit casing, comprise that box frame and some LED show module, described box frame one side surface is provided with some module mounting holes, described LED shows that module is installed in described module mounting hole place, and array becomes the display surface of led display unit casing, and described LED shows that the periphery of mould-group circuit-board is provided with a circle as the EMC limit of earth terminal; Also be provided with the ground connection flanging on the described box frame, described ground connection flanging be positioned at described module mounting hole around, and the ground connection flanging is electrically connected with described EMC limit, thereby LED shown the earth terminal of module is electrically connected and ground connection with box frame.
In the preferred technical scheme, described led display unit casing also comprises type conductive sliver, and described type conductive sliver is arranged between described EMC limit and the ground connection flanging, and the EMC limit is connected and reliable ground with ground connection flanging Indirect Electro by type conductive sliver.
The beneficial effects of the utility model are:
Owing at box frame the ground connection flanging is set, LED shows that the EMC limit of module directly is electrically connected and ground connection with box frame by this ground connection flanging, compare the mode of spraying conductive paint ground connection, ground connection more reliably reaches stable, thereby the led display unit casing has better, more stable capability of electromagnetic shielding.And the ground connection flanging can go out and bending forming in processing module mounting hole, neither can increase operation, also can not increase the cost of raw material, and is simple.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the perspective view of box frame in the utility model embodiment;
Fig. 2 is the partial enlarged drawing of A part among Fig. 1;
Fig. 3 is the structural representation that dissects that LED shows module ground connection in the utility model embodiment led display unit casing.
Embodiment
A kind of led display unit casing that this embodiment provides comprises that box frame 1 and some LED show the module (not shown).The structure of box frame 1 as shown in Figure 1, the one side surface is provided with some module mounting holes 11, self-assembling formation is installed muscle 10 between each module mounting hole 11, described LED shows that module is installed on the described module mounting hole 11 places installation muscle 10 all around, thereby cover described module mounting hole 11, and array becomes the display surface of led display unit casing.As shown in Figure 3, described LED shows the periphery of the circuit board 30 of module, all is provided with a circle as the EMC limit 301 of earth terminal.The difference of this embodiment and prior art as shown in Figure 2, just be also to be provided with ground connection flanging 101 on the described box frame 1, described ground connection flanging 101 be positioned at described module mounting hole 11 around, and as shown in Figure 3, ground connection flanging 101 is electrically connected with described EMC limit 301 after the assembling, thereby LED is shown the earth terminal of module 30 is electrically connected and ground connection with box frame 1, and no longer by module drain pan 31.
Owing at box frame 1 ground connection flanging 101 is set, LED shows that the EMC limit 301 of the circuit board 30 of module directly is electrically connected and ground connection with box frame 1 by this ground connection flanging 101, compare the mode module drain pan 31 spraying conductive paint ground connection, ground connection more reliably reaches stable, thereby the led display unit casing has better, more stable capability of electromagnetic shielding.And ground connection flanging 101 can go out and bending forming in processing module mounting hole 11, neither can increase operation, also can not increase the cost of raw material, and is simple.
As shown in Figure 3, in the preferred technical scheme, described led display unit casing also comprises type conductive sliver 20, and described type conductive sliver 20 is arranged on the EMC limit 301 of the circuit board 30 of described LED module, and between the ground connection flanging 101.Type conductive sliver 20 forms a circle usually, and is compressed between EMC limit 301 and the ground connection flanging 101, thereby EMC limit 301 is connected and more reliable ground connection with ground connection flanging 101 Indirect Electros by type conductive sliver 20.Be provided with after the type conductive sliver 20, not only the machining precision of ground connection flanging 101 can reduce (the accuracy of the height of ground connection flanging 101 on the box frame 1, with and the requirement of the flatness at top can reduce), and because type conductive sliver 20 is soft, thereby can guarantee that ground connection is more reliable.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (2)
1. led display unit casing, comprise that box frame and some LED show module, described box frame one side surface is provided with some module mounting holes, and described LED shows that module is installed in described module mounting hole place, and array becomes the display surface of led display unit casing; Described LED shows the periphery of the circuit board of module, be provided with a circle as the EMC limit of earth terminal, it is characterized in that, also be provided with the ground connection flanging on the described box frame, described ground connection flanging be positioned at described module mounting hole around, and the ground connection flanging is electrically connected with described EMC limit, thereby LED is shown the earth terminal of module is electrically connected and ground connection with box frame.
2. a kind of led display unit casing as claimed in claim 1, it is characterized in that, described led display unit casing also comprises type conductive sliver, and described type conductive sliver is arranged between described EMC limit and the ground connection flanging, and the EMC limit is connected and reliable ground with ground connection flanging Indirect Electro by type conductive sliver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220496144 CN202838852U (en) | 2012-09-26 | 2012-09-26 | Light-emitting diode (LED) display unit box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220496144 CN202838852U (en) | 2012-09-26 | 2012-09-26 | Light-emitting diode (LED) display unit box body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202838852U true CN202838852U (en) | 2013-03-27 |
Family
ID=47950498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220496144 Expired - Fee Related CN202838852U (en) | 2012-09-26 | 2012-09-26 | Light-emitting diode (LED) display unit box body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202838852U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423961A (en) * | 2013-09-02 | 2013-12-04 | 合肥华凌股份有限公司 | Touch control panel assembly and refrigerator |
| CN105489600A (en) * | 2015-12-25 | 2016-04-13 | 苏州东山精密制造股份有限公司 | Light emitting diode (LED) module and display device |
| CN110910779A (en) * | 2019-12-20 | 2020-03-24 | 广州视源电子科技股份有限公司 | LED display screen |
| CN111261060A (en) * | 2020-03-20 | 2020-06-09 | 广州视源电子科技股份有限公司 | LED display screen and processing method thereof |
-
2012
- 2012-09-26 CN CN 201220496144 patent/CN202838852U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423961A (en) * | 2013-09-02 | 2013-12-04 | 合肥华凌股份有限公司 | Touch control panel assembly and refrigerator |
| CN105489600A (en) * | 2015-12-25 | 2016-04-13 | 苏州东山精密制造股份有限公司 | Light emitting diode (LED) module and display device |
| CN110910779A (en) * | 2019-12-20 | 2020-03-24 | 广州视源电子科技股份有限公司 | LED display screen |
| CN111261060A (en) * | 2020-03-20 | 2020-06-09 | 广州视源电子科技股份有限公司 | LED display screen and processing method thereof |
| CN111261060B (en) * | 2020-03-20 | 2022-02-22 | 广州视源电子科技股份有限公司 | LED display screen and processing method thereof |
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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: 20130327 Termination date: 20150926 |
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| EXPY | Termination of patent right or utility model |