CN2063327U - Grounding device for protecting screen of cathode ray tube - Google Patents
Grounding device for protecting screen of cathode ray tube Download PDFInfo
- Publication number
- CN2063327U CN2063327U CN 90211554 CN90211554U CN2063327U CN 2063327 U CN2063327 U CN 2063327U CN 90211554 CN90211554 CN 90211554 CN 90211554 U CN90211554 U CN 90211554U CN 2063327 U CN2063327 U CN 2063327U
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- China
- Prior art keywords
- protecting screen
- electrostatic leakage
- current
- electrostatic
- leakage end
- 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.)
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- Elimination Of Static Electricity (AREA)
Abstract
The utility model discloses a grounding device eliminating the high-voltage static electricity on the protecting screen in the front of a cathode-ray tube, which is characterized in that the utility model comprises an electrostatic discharge end, a current-limiting resistor, a conducting wire and a connection end. The utility model eliminates the electrostatic field of the protecting screen and the electrostatic field around the protecting screen, and thus the protecting screen has safe utilization, and is not easy to form electrified bacteria and dust, protecting the safety and health of people.
Description
The utility model relates to the earthing device of the preceding protecting screen of a kind of earthing device of cathode ray tube protecting screen, particularly color television set.
Color television set, the protecting screen before the cathode ray tubes such as terminal display, the independent placement that has, have with television set or indicator integral.This protecting screen has X-ray-preventing, the effect of ultraviolet radiation.But, the cathode ray tube of working under the high pressure of 15～30KV has electron stream to penetrate display screen, before screen, set up powerful electric field, make dust in the air, bacterium induction charging, this charged dust, bacterium will be caused the harm to human body, especially easily give birth to skin disease, simultaneously, also make electrostatic high-pressure on the protecting screen induction band, when people's hand touches protecting screen, have stronger electrical sensation.
The purpose of this utility model is to provide, and a kind of earthing device makes the high-pressure electrostatic on the protecting screen release the back near zero potential.Simultaneously, the space electric field before the protecting screen is also eliminated thereupon.
Task of the present utility model provides the preceding high voltage electrostatic device that protecting screen is with of a kind of elimination cathode ray tube, it is characterized in that by the electrostatic leakage end, and current-limiting resistance, lead, link is formed.The high-pressure electrostatic of protecting screen is by link, lead, current-limiting resistance.Pass through the electrostatic leakage end again and since electrostatic leakage insert ground in the three core supply sockets (in) in the line hole, static is released thus.When the power supply in the supply socket owing to outside the imbalance of circuit form ground (in) tape; so the resistance of current-limiting resistor is selected between 2-100M Ω; make the electric current that passes through very little, when the people touches protection screen, can electric shock feeling not take place and reach protective effect.Since the electrostatic leakage end be the ground that inserts supply socket (in) in the line hole, so its shape can be garden shape, flat.When end directly hammered into ash or brick wall wall if release, the electrostatic leakage end can be needle-like shape.When wall or building to the resistance on ground during less than 100M Ω, at this time the resistance of current-limiting resistance is zero, can save current-limiting resistance.Directly be welded on when the electrostatic leakage end on the ground wire of casing, the electrostatic leakage end is a shape.
Equally, in order to be connected with protecting screen better, so link can be made clamp type shape, plug-in type shape or point-like stickup or be welded on the protection screen.
Because the static on the protection screen is released by earthing device, so the electric field before current potential near zero, shields is also eliminated.So be difficult for forming charged dust and bacterium, reduce people and therefore easily suffer from dermopathic possibility.Simultaneously, people do not have the electrical sensation of numb hand when touching protecting screen, good fail safe is arranged.
Fig. 1 is the structural representation of protecting screen earthing device.
Fig. 2 is a protecting screen earthing device electrostatic leakage end schematic diagram.
Fig. 3 is a protecting screen earthing device link schematic diagram.
Below in conjunction with accompanying drawing embodiment is described:
Embodiment 1:
End by garden cylindricality electrostatic leakage end (1) connects current-limiting resistance (2) with the method for welding, resistance is 2M Ω, method with welding links to each other with lead again, with electrostatic leakage end (1), current-limiting resistance (2), and an end of lead (3) is shaped to one with the method for injection moulding, and the other end of lead (3) is connected with clamp type link (4) with the method for welding.Clamp type link (4) is clipped on the protecting screen, electrostatic leakage end (1) is inserted on the ground wire jack of three core supply sockets.After tested, the current potential of protecting screen is zero.
Embodiment 2:
Pancake electrostatic leakage end (5), one end connects current-limiting resistance (2) with the method for welding, resistance is 100M Ω, the other end of current-limiting resistance (2) and lead (3) weld together, and one end of electrostatic leakage end one end, current-limiting resistance and lead is shaped to one with the method for injection moulding, the other end of lead (3) is welded on the plug-in type link (8), plug-in type link (8) is inserted on the protecting screen, pancake electrostatic leakage end (5) is inserted on the three hole flat supply socket ground wires.After tested, the current potential on the protecting screen is zero.
Embodiment 3:
The direct welding lead of one end (3) of aciculiform electrostatic leakage end (6), the other end of lead are welded on the plug-in type link (8), and the plug-in type link is inserted on the protecting screen, and aciculiform electrostatic leakage end (6) is lifted on ash charge wall or the brick wall.Current potential on the protecting screen is zero after tested.
Embodiment 4:
The same current-limiting resistance of some shape electrostatic leakage end (7) (resistance is 10M Ω) (2) that directly is welded on the TV shell base plate is connected, the other end of current-limiting resistance (2) is connected with lead (3), and the other end of lead (3) directly sticks on the conducting film of protecting screen or is welded on the conducting film of protecting screen forms a some shape link (9).Current potential on the protecting screen approaches zero after tested.
Claims (5)
1, a kind of eliminate protecting screen before the cathode ray tube with the device of high-pressure electrostatic, it is characterized in that forming by electrostatic leakage end, current-limiting resistance, lead, link.
2, device according to claim 1 is characterized in that the electrostatic leakage end is garden cylindricality electrostatic leakage end (1) or pancake electrostatic leakage end (5) or needle-like shape electrostatic leakage end (6) or some shape electrostatic leakage end (7).
3, device according to claim 2 is characterized in that the resistance of current-limiting resistance is 2-100M Ω.
4, device according to claim 2 is characterized in that when the electrostatic leakage end inserts building, and when building resistance to earth during less than 100M Ω, the resistance of current-limiting resistance is zero.
5, according to claim 3,4 described devices, it is characterized in that link is clamp type link (4), or plug-in type link (8) or some shape link (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90211554 CN2063327U (en) | 1990-01-12 | 1990-01-12 | Grounding device for protecting screen of cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90211554 CN2063327U (en) | 1990-01-12 | 1990-01-12 | Grounding device for protecting screen of cathode ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2063327U true CN2063327U (en) | 1990-10-03 |
Family
ID=4891331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90211554 Withdrawn CN2063327U (en) | 1990-01-12 | 1990-01-12 | Grounding device for protecting screen of cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2063327U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108476582A (en) * | 2015-12-24 | 2018-08-31 | 堺显示器制品株式会社 | Electrostatic eliminating brush, Destaticizing device and neutralizing method |
-
1990
- 1990-01-12 CN CN 90211554 patent/CN2063327U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108476582A (en) * | 2015-12-24 | 2018-08-31 | 堺显示器制品株式会社 | Electrostatic eliminating brush, Destaticizing device and neutralizing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |