KR910007537Y1 - Detecting apparatus for inferiority between electrodes of color picture tube - Google Patents
Detecting apparatus for inferiority between electrodes of color picture tube Download PDFInfo
- Publication number
- KR910007537Y1 KR910007537Y1 KR2019890008042U KR890008042U KR910007537Y1 KR 910007537 Y1 KR910007537 Y1 KR 910007537Y1 KR 2019890008042 U KR2019890008042 U KR 2019890008042U KR 890008042 U KR890008042 U KR 890008042U KR 910007537 Y1 KR910007537 Y1 KR 910007537Y1
- Authority
- KR
- South Korea
- Prior art keywords
- crt
- electrode
- electrodes
- detector
- anode
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/42—Measurement or testing during manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안에 따른 검출장치를 보인 도면이다.1 is a view showing a detection apparatus according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 브라운관 11 : 애노우드10: CRT 11: Anwood
20 : 검출기 30 : 알람부20: detector 30: alarm unit
BA : 전압 공급원BA: Voltage source
본 고안은 칼라브라운관의 전극간 불량 검출 장치에 관한 것으로서, 보다 상세하게는 브라운관의 애노우드단자와 G3전극간의 전기적인 특성을 검사하는 장치에 관한 것이다.The present invention relates to an apparatus for detecting inter-electrode defects in color brown tubes, and more particularly, to an apparatus for inspecting electrical characteristics between an anode terminal of a CRT and a G3 electrode.
일반적으로 제조 공정을 통해 제조된 다수의 칼라브라운관이 트로이 행가에 의해 이송될 때나, 또는 제조공정 과정에서 브라운관의 특성을 검사하여 양술한 제품을 선별 시중에 출하시키고 있다.In general, a large number of color CRTs manufactured through a manufacturing process are transported by a Trojan hanger, or during the manufacturing process, a product obtained by inspecting the characteristics of the CRT is shipped to the market.
이와같은 브라운관의 특성을 검사하여 양호한 제품을 선별하는 기존수단에서는 브라운관의 애노우드 단자와 G3전극간의 전기적인 특성을 검사하는 장치를 찾아 볼 수 없다.In the existing means for selecting good products by inspecting the characteristics of the CRT, there is no device for inspecting the electrical characteristics between the anode terminals of the CRT and the G3 electrode.
그런데 브라운관의 애노우드 단자와 G3전극간에 이물질이 존재하게 되면 촛점을 가변시켜도 화면상태가 불량한 문제점이 있었다.However, if foreign matter exists between the anode terminal of the CRT and the G3 electrode, there is a problem that the screen state is poor even if the focus is changed.
따라서 본 고안은 상기와 같은 제반 결점을 해소하고자 안출한 것으로서, 제조공정을 통해 제조된 브라운관의 애노우드와 G3전극간의 전기적인 특성을 테스트하는 장치를 제공하는데 그 목적이 있다.Therefore, the present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to provide an apparatus for testing the electrical properties between the anode and the G3 electrode of the CRT manufactured through the manufacturing process.
상기의 목적을 달성하기 위하여 본 고안에 따른 칼라 브라운관의 전극간의 불량 검출 장치는, 제조된 브라운관의 애노우드에 소정치의 전압을 공급하는 전압공급원과, 상기 브라운관의 G3 전극에 연결되어 애노우드와 G3전극간에 흐르는 전류를 검출하는 검출기와, 상기 검출기에서 검출된 전류가 일정치 이상이면 부저를 작동시켜 측정자에게 불량품임을 알리는 알람부로 구성됨을 특징으로 한다.In order to achieve the above object, the failure detection device between the electrodes of the color CRT according to the present invention is a voltage supply source for supplying a predetermined voltage to the anode of the manufactured CRT, and connected to the G3 electrode of the CRT. And a detector for detecting a current flowing between the G3 electrodes, and an alarm unit for notifying the measurer of a defective product by operating a buzzer when the current detected by the detector is above a predetermined value.
이하, 본 고안을 예시된 도면을 참조하여 더욱 상세히 기술 하기로 한다.Hereinafter, the present invention will be described in more detail with reference to the illustrated drawings.
본 고안에 따른 전극간 불량 검출 장치는 제1도에 도시된 바와 같이 브라운관(10)의 애노우드(11)에 고압공급원(BA)에서 출력된 전압(25~30KV)이 저항(R1)을 통해 인가되도록 하고, 브라운관(10)의 G3전극에 유기된 전류는 저항(R2) 및 가변저항(VR)을 거쳐 검출기(20)에 인가되도록 구성한다. 그리고 검출기(20)는 기준테이터, 즉 5㎂ 값을 설정하여 가지고 상기 G3전극에 유기된 전류와 비교 하도록 구성한다.In the inter-electrode failure detection device according to the present invention, as shown in FIG. 1, the voltage 25 to 30 KV output from the high voltage supply source BA is applied to the anode 11 of the CRT 10 through the resistor R1. The current induced in the G3 electrode of the CRT 10 is configured to be applied to the detector 20 through the resistor R2 and the variable resistor VR. The detector 20 is configured to set a reference data, that is, a value of 5 mA and to compare the current induced in the G3 electrode.
한편, 알람부(30)는 상기한 검출기(20)에 입력된 G3전극에 유기된 전류가 기준치보다 클때 검출기(20)에서 출력된 신호에 의해서 알람 동작을 하도록 구성한다.On the other hand, the alarm unit 30 is configured to perform an alarm operation by the signal output from the detector 20 when the current induced in the G3 electrode input to the detector 20 is greater than the reference value.
상기한 바와 같은 구성을 가진 본 고안의 작동 관계를 설명한다.The operation relationship of the present invention having the configuration as described above will be described.
제조공정을 통해 제조된 브라운관(10)의 애노우드(11)에 전압공급원(BA)에서 출력된 전압(25~30KV)이 인가되면 G3 전극에는 소정치의 전류가 유기된다.When a voltage (25 to 30 KV) output from the voltage supply source BA is applied to the anode 11 of the CRT 10 manufactured through the manufacturing process, a current having a predetermined value is induced in the G3 electrode.
상기와 같이 애노우드(11)에 공급된 고전압에 의해서 G3전극에 유기된 전류눈 브라운관(10)이 양품일 때는 5㎂이하가 되며, 반대로 불량품일 때는 5㎂이상이 된다.As described above, the current eye CRT 10 induced in the G3 electrode by the high voltage supplied to the anode 11 is 5 kW or less when it is a good product.
따라서, 본 고안의 장치를 이용하여 불량품의 브라운관(10)의 G3 전극에는 5㎂ 이상의 전류가 유기되기 때문에 검출기(20)에서는 이를 검출하여 알람부(30)에 공급된다. 알람부(30)에 상기 검출기(20)에서 출력된 신호가 인가되면 알람부(30)은 부저를 구동하여 측정자가 지금 테스트하고 있는 브라운관(10)이 불량품임을 알 수 있데 된다.Therefore, since the current of 5 mA or more is induced to the G3 electrode of the defective CRT 10 using the device of the present invention, the detector 20 detects this and is supplied to the alarm unit 30. When the signal output from the detector 20 is applied to the alarm unit 30, the alarm unit 30 may drive the buzzer to determine that the CRT 10 being measured by the measurer is a defective product.
상술한 바와 같이 작동하는 본 고안의 검출장치를 이용하면 브라운관의 애노우드와 G3 전극간의 전기적인 특성을 검사하여 이물질에 의한 불량품을 사전에 검출함으로써 양호한 제품 출하 시킬 수 있다.By using the detection device of the present invention operating as described above, by inspecting the electrical properties between the anode and the G3 electrode of the CRT, it is possible to ship a good product by detecting a defective product by a foreign material in advance.
Claims (1)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890008042U KR910007537Y1 (en) | 1989-06-10 | 1989-06-10 | Detecting apparatus for inferiority between electrodes of color picture tube |
| MYPI90000025A MY105237A (en) | 1989-06-10 | 1990-01-08 | Current leakage inspecting device for use in cathode ray tube |
| CN90100448A CN1022066C (en) | 1989-06-10 | 1990-01-24 | Current Leakage inspecting device for use in cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890008042U KR910007537Y1 (en) | 1989-06-10 | 1989-06-10 | Detecting apparatus for inferiority between electrodes of color picture tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR910001570U KR910001570U (en) | 1991-01-24 |
| KR910007537Y1 true KR910007537Y1 (en) | 1991-09-27 |
Family
ID=19287001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019890008042U KR910007537Y1 (en) | 1989-06-10 | 1989-06-10 | Detecting apparatus for inferiority between electrodes of color picture tube |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR910007537Y1 (en) |
| CN (1) | CN1022066C (en) |
| MY (1) | MY105237A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030073479A (en) * | 2002-03-11 | 2003-09-19 | 주식회사 엘지이아이 | Door interlock appartus in microwave oven |
-
1989
- 1989-06-10 KR KR2019890008042U patent/KR910007537Y1/en not_active IP Right Cessation
-
1990
- 1990-01-08 MY MYPI90000025A patent/MY105237A/en unknown
- 1990-01-24 CN CN90100448A patent/CN1022066C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030073479A (en) * | 2002-03-11 | 2003-09-19 | 주식회사 엘지이아이 | Door interlock appartus in microwave oven |
Also Published As
| Publication number | Publication date |
|---|---|
| KR910001570U (en) | 1991-01-24 |
| CN1022066C (en) | 1993-09-08 |
| MY105237A (en) | 1994-08-30 |
| CN1048103A (en) | 1990-12-26 |
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