CN2678119Y - Radiation-proof disturbance device for plasma TV. - Google Patents
Radiation-proof disturbance device for plasma TV. Download PDFInfo
- Publication number
- CN2678119Y CN2678119Y CN 200320114538 CN200320114538U CN2678119Y CN 2678119 Y CN2678119 Y CN 2678119Y CN 200320114538 CN200320114538 CN 200320114538 CN 200320114538 U CN200320114538 U CN 200320114538U CN 2678119 Y CN2678119 Y CN 2678119Y
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- Prior art keywords
- bonnet
- shielding box
- support
- support frame
- shielded box
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- Expired - Fee Related
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Abstract
The utility model relates to a radiation disturbance prevention device for a plasma TV, which comprises a digital processing board, an analogue board, a shielded box and an AV support frame, wherein, the digital processing board and the analogue board are fixed in the shielded box. The shielded box is connected with the AV support frame, and is fixed on a screen. Conductive foamed cotton is arranged between the contact faces of the shielded box and the AV support frame. The back parts of the shielded box and the AV support frame are fixed on the screen of the plasma TV. Conductive foamed cotton is added between the contact faces of the shielded box and the back cover. Conductive foamed cotton is arranged between the contact faces of the AV support frame and the back cover. When the back cover is covered, the back cover screw is screwed, and the conductive foamed cotton between the back cover and the shielded box and between the AV support frame and the back cover is pressed tightly, so that a favorable shielded chamber is formed by the shielded box, the support frame, and the back cover. The utility model provides the radiation disturbance prevention device for a plasma TV which can effectively eliminate the disturbance to the digital processing board and the analogue board from the electromagnetic radiation.
Description
Technical field
The utility model relates to the electromagnetic radiation resisting technology of plasm TV.
Background technology
In recent years, along with the development of flat panel display, particularly PDP (plasma display panel) become the main flow of flat panel display gradually with characteristics such as its weight are little, radiationless, volume is little, in large-screen display equipment, has important status.But as high-tech crystallization, PDP is also because the circuit structure of self complexity has brought some headachy problems.Wherein, the drive plate of plasm TV is in work, particularly the Y drive plate is in work, because operating voltage is higher, during inductance work, the electric current of alternation will produce the Electromagnetic Drive of high frequency and disturb, interference is the most serious with radio frequency, and DVD, VIEDO take second place, and causes in the displayed image signal, RF has from top to bottom that spacing does not wait, the lateral road of the level of width inequality disturbs, and is particularly serious in low-frequency range.At DVD, the spacing that shows as under the VIDEO does not from top to bottom wait, and the horizontal colour bar of width inequality disturbs..Interference source has radiation that conduction is also arranged, and mainly disturbs digital processing plate and analog board.
Summary of the invention
The purpose of this utility model is intended to overcome above-mentioned the deficiencies in the prior art, proposes a kind of plasm TV radiation proof countermeasure set that can effectively eliminate electromagnetic radiation to digital processing plate and analog board interference.
Realize the technical scheme of above-mentioned purpose: a kind of plasm TV radiation proof countermeasure set, comprise digital processing plate, analog board and shielding box, digital processing plate and analog board are fixed in the shielding box.
The AV support is set, and shielding box is fixed on the AV support, adds conducting foam between the contact-making surface of shielding box and AV support.
Described shielding box and AV support are fixed on the screen of plasm TV, between the contact-making surface of shielding box and bonnet, add conducting foam, between the contact-making surface of AV support and bonnet, add conducting foam, add conducting foam between the contact-making surface of shielding box and bonnet, cover bonnet, after stamping the bonnet screw, bonnet and shielding box, bonnet and AV support conducting foam compress, and shielding box, AV support and bonnet form a good shielding cavity.
Adopt technique scheme, the utility model beneficial technical effects is: 1, digiboard and analog board are fixed in the shielding box, can effectively reduce the high frequency electromagnetic radiation that drive plate produces.2, at contact-making surface, shielding box and the bonnet of shielding box and AV support, after AV support and bonnet added conducting foam, shielding box, support and bonnet had formed a good shielding cavity by compacted conducting foam, and the driving that masks radiation is further disturbed.3, shielding box with well contact with bonnet after the AV support is stamped screw, can introduce bonnet to disturbance current apace like this, thereby reach the purpose of eliminating radiated interference.
Description of drawings
Fig. 1 is the shielding box structure schematic diagram of plasm TV radiation proof countermeasure set.
Fig. 2 is the AV supporting structure schematic diagram of plasm TV radiation proof countermeasure set.
Fig. 3 is back (thoroughly) view of stamping the plasm TV bonnet after Fig. 1 shielding box and the assembling of Fig. 2 AV support.
Fig. 4 is the longitdinal cross-section diagram of plasm TV.
Embodiment
In conjunction with Fig. 1 to Fig. 4, a kind of plasm TV radiation proof countermeasure set, comprise digital processing plate 11, analog board 10, shielding box 1 and AV support 2, digital processing plate 11 is by on the screw post 6 of screw in shielding box 1, analog board 10 is by on the screw post 7 of screw in shielding box 1, shielding box 1 is fixed on the AV support by symmetrical screw post 4, and the conducting foam 9 of shielding box 1 by the rear portion bottom of AV support among the conducting foam on the side of the left and right sides 12 and Fig. 2 makes and be added with conducting foam between its contact-making surface and closely be connected among Fig. 1.After stamping bonnet by screw hole 5, the top surface edge of shielding box 1 closely is connected with bonnet 13 by conducting foam 3 among Fig. 1, the top surface edge of AV support 2 closely is connected with bonnet 13 by conducting foam 8 among Fig. 2, can introduce bonnet to disturbance current apace, thereby reach the purpose of eliminating radiated interference.Shielding box 1, AV support 2 and bonnet 13 form a good shielding cavity, and the driving that so just can effectively mask radiation is disturbed.Fig. 4 has provided the position relation of each part of present embodiment in plasm TV, and label 14 is the plasma electric screen, and label 15 is signal plates, is the general name to word processing plate 11, analog board 10.
Must be pointed out that the indefiniteness that the foregoing description is only made the present invention illustrates.But person of skill in the art will appreciate that, do not departing under aim of the present invention and the scope that can make various modifications, replacement and change to the present invention, these modifications, replacement and change still belong to protection scope of the present invention.
Claims (3)
1, a kind of plasm TV radiation proof countermeasure set comprises digital processing plate, analog board, it is characterized in that: also comprise shielding box, digital processing plate and analog board are fixed in the shielding box.
2, according to the described plasm TV radiation proof of claim 1 countermeasure set, it is characterized in that: the AV support is set, and shielding box is fixed on the AV support, adds conducting foam between the contact-making surface of shielding box and AV support.
3, according to the described plasm TV radiation proof of claim 2 countermeasure set, it is characterized in that: described shielding box and AV support are fixed on the screen of plasm TV, between the contact-making surface of shielding box and bonnet, add conducting foam, between the contact-making surface of AV support and bonnet, add conducting foam, cover bonnet, after stamping the bonnet screw, bonnet and shielding box, bonnet and AV support conducting foam compress, and shielding box, support and bonnet form a good shielding cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114538 CN2678119Y (en) | 2003-11-06 | 2003-11-06 | Radiation-proof disturbance device for plasma TV. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114538 CN2678119Y (en) | 2003-11-06 | 2003-11-06 | Radiation-proof disturbance device for plasma TV. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2678119Y true CN2678119Y (en) | 2005-02-09 |
Family
ID=34580898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320114538 Expired - Fee Related CN2678119Y (en) | 2003-11-06 | 2003-11-06 | Radiation-proof disturbance device for plasma TV. |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2678119Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102365014A (en) * | 2011-10-20 | 2012-02-29 | 镇江船舶电器有限责任公司 | Electromagnetic leakage shielding structure for panel components of electrical cabinet |
-
2003
- 2003-11-06 CN CN 200320114538 patent/CN2678119Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102365014A (en) * | 2011-10-20 | 2012-02-29 | 镇江船舶电器有限责任公司 | Electromagnetic leakage shielding structure for panel components of electrical cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050209 Termination date: 20111106 |