CN202857186U - Flame-retardant device for rear plastic shell of liquid crystal display - Google Patents
Flame-retardant device for rear plastic shell of liquid crystal display Download PDFInfo
- Publication number
- CN202857186U CN202857186U CN 201220517817 CN201220517817U CN202857186U CN 202857186 U CN202857186 U CN 202857186U CN 201220517817 CN201220517817 CN 201220517817 CN 201220517817 U CN201220517817 U CN 201220517817U CN 202857186 U CN202857186 U CN 202857186U
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- CN
- China
- Prior art keywords
- liquid crystal
- crystal display
- explosion
- proof valve
- power panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Casings For Electric Apparatus (AREA)
Abstract
The utility model discloses a flame-retardant device for a rear plastic shell of a liquid crystal display. The flame-retardant device is a half-closed metal isolation cover arranged on a power strip of the liquid crystal display, and the metal isolation cover is fixed on the power strip and encircles a position of an explosion-proof valve of an aluminum electrolytic capacitor on the power strip. According to the utility model, as the metal isolation cover is fixed on the power strip of the liquid crystal display and the metal isolation layer covers the position of the explosion-proof valve of the aluminum electrolytic capacitor on the power strip, sparks generated when flammable substances inside the aluminum electrolytic capacitor jet out of the position of the explosion-proof valve can be prevented from burning the rear plastic shell when the inside of the aluminum electrolytic capacitor fails, thereby preventing the rear plastic shell of the liquid crystal display from being burnt.
Description
Technical field
The utility model relates to a kind of safety device of liquid crystal display, relates in particular to a kind of liquid crystal display plastic back shell fire-retarding device.
Background technology
Alminium electrolytic condenser generally all is housed on the power panel of liquid crystal display, and custom does not all deaden thing between the back cover of this alminium electrolytic condenser and liquid crystal display.But alminium electrolytic condenser is because itself inner a large amount of organic acid electrolyte that exist and isolation brown paper, the electrostatic energy of gathering in capacitor can directly carry out sparkover by interelectrode flying fox (SPARK) under certain condition, this spark may cause the electrolyte temperature of aluminium electrolytic capacitor inside sharply to raise and gasify, when the materials such as the gas row of sharply expanding in it does not go out, just easily cause the alminium electrolytic condenser blast.Present aluminium electrolytic capacitor is in order to prevent the alminium electrolytic condenser blast, as shown in Figure 1, it (is that end face 02 place is provided with " people " font cut that a general end face 02 at columniform alminium electrolytic condenser 01 is provided with " people " font explosion-proof valve, make the shell at aluminium electrolytic capacitor 01 this place be weakness, certainly this explosion-proof valve also can be the cut of other shape dress, as: " ten " font, " K " font, " T " font etc.), in the time may occurring exploding situation, the materials such as gas that sharply expand in the aluminium electrolytic capacitor are washed discharge open from blast protection, and then avoid the alminium electrolytic condenser blast.Although yet this guard method allows the possibility of alminium electrolytic condenser blast reduce; but it is from the inflammable substance of the extreme temperatures of explosion-proof valve discharge; after running into air; may cause the active combustion among a small circle; and do not deaden protective device between this electrochemical capacitor and the liquid crystal display plastic back shell; its active combustion among a small circle may cause the burning of display plastic shell; thereby cause the larger intensity of a fire; if even the fire-protection rating of the material of plastic back shell is lower the time, but fire hazard also.
Summary of the invention
In order to overcome the deficiencies in the prior art, the purpose of this utility model provides a kind of liquid crystal display plastic back shell fire-retarding device.
For achieving the above object, the technical solution of the utility model is: a kind of liquid crystal display plastic back shell fire-retarding device, its semienclosed metal cage for arranging on the power panel of liquid crystal display, this metal cage is fixed on the power panel, it surrounds the explosion-proof valve position of the alminium electrolytic condenser on the power panel, and the metal cage is kept apart alminium electrolytic condenser explosion-proof valve position and the liquid crystal display plastic back shell of liquid crystal display.
Described metal cage comprises base plate and three side plates, and base plate is fixed on the below of the explosion-proof valve of the alminium electrolytic condenser on the power panel, and three side plates and base plate surround the explosion-proof valve position of alminium electrolytic condenser together.The processing of this kind metal cage is simple, and isolation effect is better.
Described base plate is provided with the plant pin, and the plant pin of power panel on corresponding base plate below the alminium electrolytic condenser explosion-proof valve is provided with the inserting hole that matches.Adopt this kind structure, the metal cage is fixing more reliable of power panel.
Adopt above structure, the metal cage that utilizes the power panel in liquid crystal display to be provided with, and this metal cage covers the explosion-proof valve position on the alminium electrolytic condenser on the power panel.When having realized the internal failure when alminium electrolytic condenser, the spark that the combustible that prevents alminium electrolytic condenser inside causes when the position of explosion-proof valve ejects is burned to the effect on the plastics back cover, thereby realizes preventing the burning of liquid crystal display plastic back shell.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the structural representation of alminium electrolytic condenser;
Fig. 2 is sectional structure schematic diagram of the present utility model;
Fig. 3 is the structure for amplifying schematic diagram of metal cage of the present utility model.
Embodiment
Shown in Fig. 2 or 3, a kind of liquid crystal display plastic back shell of the utility model fire-retarding device, it is the semienclosed metal cage 2 that arranges on the power panel 1 of liquid crystal display, this metal cage 2 is fixed on the power panel 1, explosion-proof valve 31 positions of the alminium electrolytic condenser 3 on its 2 encirclement power panel 1, metal cage 2 is kept apart alminium electrolytic condenser 3 explosion-proof valves, 31 positions and the liquid crystal display plastic back shell 4 of liquid crystal display.
Described metal cage 2 comprises base plate 21 and three side plates 22, and base plate 21 is fixed on the below of the explosion-proof valve 31 of the alminium electrolytic condenser 3 on the power panel 1, and three side plates 22 and base plate 21 surround explosion-proof valve 31 positions of alminium electrolytic condenser 3 together.2 processing of this kind metal cage are simple, and isolation effect is better.
Described base plate 21 is provided with plant pin 23, and the plant pin 23 of power panel 1 on corresponding base plate 21 below alminium electrolytic condenser 3 explosion-proof valves 31 is provided with the inserting hole 11 that matches.Adopt this kind structure, metal cage 2 is fixing more reliable of power panel.
Claims (3)
1. liquid crystal display plastic back shell fire-retarding device, it is characterized in that: its semienclosed metal cage for arranging on the power panel of liquid crystal display, this metal cage is fixed on the power panel, and it surrounds the explosion-proof valve position of the alminium electrolytic condenser on the power panel.
2. liquid crystal display plastic back shell fire-retarding device according to claim 1, it is characterized in that: described metal cage comprises base plate and three side plates, base plate is fixed on the below of the explosion-proof valve of the alminium electrolytic condenser on the power panel, and three side plates and base plate surround the explosion-proof valve position of alminium electrolytic condenser together.
3. liquid crystal display plastic back shell fire-retarding device according to claim 2, it is characterized in that: described base plate is provided with the plant pin, and the plant pin of power panel on corresponding base plate below the alminium electrolytic condenser explosion-proof valve is provided with the inserting hole that matches.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220517817 CN202857186U (en) | 2012-10-10 | 2012-10-10 | Flame-retardant device for rear plastic shell of liquid crystal display |
| TW102201410U TWM458573U (en) | 2012-10-10 | 2013-01-22 | Display with flame retardant device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220517817 CN202857186U (en) | 2012-10-10 | 2012-10-10 | Flame-retardant device for rear plastic shell of liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202857186U true CN202857186U (en) | 2013-04-03 |
Family
ID=47988326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220517817 Expired - Fee Related CN202857186U (en) | 2012-10-10 | 2012-10-10 | Flame-retardant device for rear plastic shell of liquid crystal display |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202857186U (en) |
| TW (1) | TWM458573U (en) |
-
2012
- 2012-10-10 CN CN 201220517817 patent/CN202857186U/en not_active Expired - Fee Related
-
2013
- 2013-01-22 TW TW102201410U patent/TWM458573U/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TWM458573U (en) | 2013-08-01 |
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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: 20130403 Termination date: 20181010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |