TW314638B - - Google Patents

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Publication number
TW314638B
TW314638B TW85108227A TW85108227A TW314638B TW 314638 B TW314638 B TW 314638B TW 85108227 A TW85108227 A TW 85108227A TW 85108227 A TW85108227 A TW 85108227A TW 314638 B TW314638 B TW 314638B
Authority
TW
Taiwan
Prior art keywords
cathode
patent application
characterized
cathode structure
item
Prior art date
Application number
TW85108227A
Other languages
Chinese (zh)
Original Assignee
Thomson Tubes & Displays
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to FR9514327A priority Critical patent/FR2741997B1/en
Application filed by Thomson Tubes & Displays filed Critical Thomson Tubes & Displays
Application granted granted Critical
Publication of TW314638B publication Critical patent/TW314638B/zh

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Description

A7 printed by the Staff Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs ----------- £ 2 _____ V. Description of the invention (1) The present invention is related to a cathode structure, which can be installed in the electronic grabbing of cathode ray tubes in. The current trend is to require the cathode ray tube to have more performance, such as: the service life of the screen, the lighting body and low power consumption. The aforementioned performance parameters mainly depend on the cathode structure and type used to generate the electron beam for scanning the cathode ray tube fluorescent screen. So far, the most commonly used oxygen cathode ray tubes in the industry have reached their limits in terms of these requirements and have been replaced by reserve cathodes, which can achieve higher densities and longer service life. effect. The working temperature of the reserve cathode is between 2,000 degrees and L200 degrees. The expansion of the temperature range of the cathode constituent materials must be reduced as much as possible, so that the performance of the electron gun around the cathode reaches good stability. For this purpose, the pyrotechnic materials and the appropriate size of the cathode 17 column can be used to limit the heat conduction. The heat energy is lost. In order to achieve the above effects, US Patent Nos. 4,184,100 and 5,218,263 and other invention patents disclose the following two types of cathode structures that have been adopted so far: -A substantially cylindrical cathode body with an electron emitting element at one end, Inside it is equipped with a heating element;-a substantially cylindrical thermal isolation net surrounding the periphery of the cathode body. -A device for supporting the cathode body in the thermal insulation cover. The support device must be able to provide a stable assembly and at the same time may minimize the loss of heat energy due to heat conduction. The cathode support device can be -4-This € sheet scale is applicable to the Zhongguanjia Standard (CNS) A4 specification (21G $ 297 public i '--- f, please read the precautions on the back before filling this page) -a Central Bureau of Standards, Ministry of Economic Affairs Printed by staff consumer cooperatives A7 ----------- £ 2 _____ V. Description of the invention (1) The present invention relates to a cathode structure, which can be installed in the electronic grabbing of the cathode ray tube. The current trend is to require the cathode ray tube to have more performance, such as: the service life of the screen, the lighting body and low power consumption. The aforementioned performance parameters mainly depend on the cathode structure and type used to generate the electron beam for scanning the cathode ray tube fluorescent screen. So far, the most commonly used oxygen cathode ray tubes in the industry have reached their limits in terms of these requirements and have been replaced by reserve cathodes, which can achieve higher densities and longer service life. effect. The working temperature of the reserve cathode is between 2,000 degrees and L200 degrees. The expansion of the temperature range of the cathode constituent materials must be reduced as much as possible, so that the performance of the electron gun around the cathode reaches good stability. For this purpose, the pyrotechnic materials and the appropriate size of the cathode 17 column can be used to limit the heat conduction. The heat energy is lost. In order to achieve the above effects, US Patent Nos. 4,184,100 and 5,218,263 and other invention patents disclose the following two types of cathode structures that have been adopted so far: -A substantially cylindrical cathode body with an electron emitting element at one end, Inside it is equipped with a heating element;-a substantially cylindrical thermal isolation net surrounding the periphery of the cathode body. -A device for supporting the cathode body in the thermal insulation cover. The support device must be able to provide a stable assembly and at the same time may minimize the loss of heat energy due to heat conduction. The cathode support device can be -4-This € sheet scale is applicable to the Zhongguanjia Standard (CNS) A4 specification (21G $ 297 public i '--- f, please read the precautions on the back before filling this page) -a A7 B? 314638 5 2. Description of the invention (2) (Please read the precautions on the back before filling in this page) Use multiple supports made of a thin metal strip with a small cross-section to = reduce heat loss' One end of each support is connected to the cathode body The other end is connected to the above-mentioned isolation cover (or shield). Another method is to punch out the wall of the cylindrical part of the shield (shield) to reduce one end to be integrated with the shield, and the other end is connected to the cathode skull. When making a bracket with this metal strip, the following shortcomings will be encountered: -Because the size of the bracket is very small, it must be handled with care. -Welding the end of the metal strip to the periphery of the isolation shield will cause the periphery to form a raised edge. One-Using metal strips, it is difficult to handle the positioning of factors such as the relationship between concentric circles of height and straightness in grasping the relative relationship between the cathode and the separator. -Using narrow metal strips will increase the manufacturing cost. Once the bracket is swaged on the isolator in a direct way, one must choose a refractory material to make the isolator, and this will damage the thermal performance of the isolation and the electron emission coefficient of the cathode The cost is relatively south. The object of the present invention is to provide a printed structure which can reduce the above-mentioned shortcomings of the cathode, the Ministry of Economic Affairs, Central Standard, and Employee Consumer Cooperative. To achieve this, the cathode of the cathode ray tube designed according to the present invention includes: " the first metal tube, which can accommodate the electron emission element and the heating element f-the second metal tube, which constitutes the shield of the cathode; _ Device for positioning the first metal tube inside the second tube. 5--Public fifth, invention description (A7 B7 Printed by the Employee Consumer Cooperative of the Central Building Bureau of the Ministry of Interest and Economics ^ Its characteristic is that the mooring device is composed of a separate metal piece. In a preferred implementation method, the The metal tie-down part is composed of a crown, which has several arms extending in the axial direction. Refer to the following drawings for a deeper understanding of the present invention:-Figures 1 and 2 are based on The top view and cross-sectional view of the cathode structure designed by the current technology.-Figures 3 and 4 are the top view and cross-sectional view of another cathode structure designed according to the current technology.-Figures 5 and 6 are implemented according to the present invention-species The components used to keep the cathode system within the above-mentioned shield (separation cover).-Figures 7 and 8 are respectively a top view and a cross-sectional view of a cathode structure according to the invention.-Figures 9, 10 and 11 are respectively The top view, cross-sectional view and exploded view of the second cathode structure according to the invention. _-Figures 12 and 13 are shielding pipes designed for the cathode structure according to the invention. As shown in Figures 1 and 2 Shows, a reserve cathode pack A cathode body 2, for example, a cathode made of nickel-chromium alloy, at its top is an electron emission element !; Within the cylinder constituting the cathode body is a heating element 5. The cylinder 4 surrounding the cathode body is separated 'Thermal shielding' is used to prevent the heat generated by the heating element (knowledge and loss, and increase the output of the ordinary heat energy. The cathode body 2 is composed of several .. ^ < • Bracket to fix it within the shielding 4 One end is welded to the layer of the beneficial beam, the edge of the screen is 7 and the other end is welded to the cathode body. Since the size of each bracket 3A ρ 廿 廿 文% 3 t is very small, so at the edge L ---- --- _ 6-The standard of this record is applicable to the ^ 榡 准 (CNS) tank; (please read the precautions on the back and then fill out this page). ^ ~ /. 定 '; t

I 1---I A7 B? V. Description of the invention (It is extremely difficult to make the connection on 4 7 and it must be done carefully with the element 2 and the time. When it is placed in the fixed position of the cathode in the electron gun, it is generally According to the component data, when the positioning of the partial cathode body in the above-mentioned shelter is incorrect, the sub-gun and the cathode ray tube equipped with the electron gun cannot operate correctly. In the cathode structure shown in FIGS. 3 and 4, To fix the cathode body, the bracket has-Shao part is directly punched and forged on the surface of the above-mentioned shielding cylinder; one T is still the whole part of the shielding. The bracket · f is toward the inside of the cylinder 4, and its empty end Welding to the cathode body 2. In this case, when choosing the shielding material, it is threaded on the refractory material, but this material preparation = low heat shielding effect and affects the cathode transfer out. What's more, these ^ The thickness and width of the frame are also limited by the limited thickness of the spread (about 25_30: suddenly), the difficulty of approaching the welding point, and the difficulty of punching such dry materials. In one embodiment of the present invention In the system, the single body 16 is used to position the cathode body 2 in the above-mentioned shield to The element is formed from a hollow cylinder made of refractory material (for example: tantalum), and its thickness is extremely thin, preferably between 5 and 2 5 minutes. When manufactured in this way, the cathode body The thermal insulation effect between the heat shield and the heat shield can be greatly improved, shortening the time for the cathode to reach the operating temperature. The support 16 includes a crown top 10, which is connected to several support arms 11, which are used to manufacture this component The arms are punched and forged on the surface of the cylinder made of refractory materials. These arms are distributed around the crown 10 at equal intervals. To ensure a stable positioning effect, at least three arms are required, spaced apart from each other by The arc is 1 2 〇 degrees. These arms are folded diagonally inwards, so that their ends i 2 are supported on the Yin. The Zhang scale is applicable to the gjg family practice standard (CN'S). Ege (21Qx297 public disease) X-- ---- 1T ------ ^ • YiLu (please read the precautions on the back before filling this page) Employee consumption cooperation of the Central Bureau of Standards of the Ministry of Economic Affairs Du Printed A7 B? Employee consumption cooperative of the Central Bureau of the Standard of Economy Printed 014638 V. Description of the invention (5) 'On the m2 of the pole, and each branch is welded It is integrated with the cathode body. The final assembly step of the cathode is to insert the cathode body 2 integrated with the support 6 into the inner cavity of the shield 4, the outer diameter of the crown 4 is slightly smaller than the top part of the shield 4 After adjusting the relative position of the cathode body 2 and the shield 4, the crown 10 can be welded (eg, laser welded) to the shield 4. This method is better than the current use when processing thin materials At the same time, its supporting force is also greater than the supporting force of the bracket made by the prior art. And this combination method also has the advantage of being easy to learn. In another feasible implementation method (as shown in Figures 9, 10 and 13) In the system, the inner diameter of the crown top 10 is slightly larger than the outer diameter of the shield Γ. In addition, there are hard-working notches 15 on the circumference of the shield 4, so that each arm can be passed through when the cathode body and its support are inserted into the shield 4. The advantage of this structure is that the relative position between the cathode body 2 and the shield 4 can be positioned when the support 16 is placed at the bottom of each recess 15, and the final assembly process of the cathode is automatically completed because, It is no longer necessary to adjust and measure the relative position between the cathode body and the shield densely, and this cathode assembly work is easy to learn. Furthermore, this method is not limited to the production of reserve cathodes, because this method can also be used to produce oxygen-coated cathodes and has the same advantages. -8-The iron standard of this paper is applicable to the Chinese National Standard (CNS) Μ specification (2I0X297mm) (please read the precautions on the back before filling this page)

Claims (1)

  1. i: d • ··· Please Zv ^ 851082 2 Amendment to the Chinese Specification of Patent Application No. 7 (% April) --- ~~~ ---, Patent Application A8 B8 C8 D8 丨 Amendment jMM l- A cathode structure for a cathode ray tube, including:-a first metal tube, which can be used to contain the electron emission member and a heating element;-a second metal tube, which forms a shield for the cathode;-holding the first metal tube mentioned above A device for fixing the position in the inner cavity of the second metal tube; its characteristic is that the above-mentioned tethering device is composed of a single metal piece. -The cathode structure according to item 1 of the patent application range is characterized in that the metal catering device is composed of a crown top with a plurality of arms extending outward along its axis. The cathode structure according to item 2 of the patent application is characterized by the number of these arms being at least three. 4. The cathode structure according to item 2 or 3 of the patent application range is characterized in that the crown part is fixed on the metal tube constituting the cathode shield. 3. The cathode structure according to item 2 or 3 of the patent application range is characterized in that the crown I and the partial wound are installed in the inner cavity of the metal tube that forms the cathode shielding. 6. The cathode structure according to item 4 of the patent application range is characterized in that the crown top part is installed on the outer surface of the shield. 7. The cathode structure according to item 6 of the patent application range is characterized in that the above-mentioned metal tube constituting the shield is provided with a plurality of notches so that each arm of the crown can pass through the inner cavity of the metal tube. 8. The cathode structure according to item 1 of the patent application range is characterized in that the single integral mooring member is made of a refractory material. 9_According to the cathode structure of Patent Application No. 1, it is characterized by the tethered constitutive paper (CNS) A4% g ~ ^ Gx297 publish f-if Xu Xianjing notices on the back, then fill out this I " -Subscribe. ---- > ------- i: d • ···· Please Zv ^ 851082 2 Amendment to the Chinese specification of Patent Application No. 7 (% April) --- ~~~- -, The scope of patent application A8 B8 C8 D8 丨 amended jMM l-a cathode structure for a cathode ray tube, including:-the first metal tube, which can be used to accommodate electron emission components and a heating element;-the second metal The tube constitutes the shield of the cathode;-a device that keeps the first metal tube in a fixed position in the inner cavity of the second metal tube; its characteristic is that the mooring device is composed of a single metal piece. -The cathode structure according to item 1 of the patent application range is characterized in that the metal catering device is composed of a crown top with a plurality of arms extending outward along its axis. The cathode structure according to item 2 of the patent application is characterized by the number of these arms being at least three. 4. The cathode structure according to item 2 or 3 of the patent application range is characterized in that the crown part is fixed on the metal tube constituting the cathode shield. 3. The cathode structure according to item 2 or 3 of the patent application range is characterized in that the crown I and the partial wound are installed in the inner cavity of the metal tube that forms the cathode shielding. 6. The cathode structure according to item 4 of the patent application range is characterized in that the crown top part is installed on the outer surface of the shield. 7. The cathode structure according to item 6 of the patent application range is characterized in that the above-mentioned metal tube constituting the shield is provided with a plurality of notches so that each arm of the crown can pass through the inner cavity of the metal tube. 8. The cathode structure according to item 1 of the patent application range is characterized in that the single integral mooring member is made of a refractory material. 9_According to the cathode structure of Patent Application No. 1, it is characterized by the tethered constitutive paper (CNS) A4% g ~ ^ Gx297 publish f-if Xu Xianjing notices on the back, then fill out this I " -Subscribe. ---- > ------- A8 B8 C8 D8, the thickness of the patent application range is set between 15 and 25. 10. A cathode ray tube, the electron gun part of which is equipped with a cathode made according to any one of the above-mentioned patent applications. (Please read the precautions on the back before filling in this page) Ordered Printed by the Central Bureau of Standards of the Ministry of Economic Affairs, Consumer Cooperative Cooperative 2- This paper standard uses the Chinese National Standards (CNS) 8 4 (210X297 mm)
TW85108227A 1995-12-05 1996-07-08 TW314638B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9514327A FR2741997B1 (en) 1995-12-05 1995-12-05 Cathode structure for cathode ray tube

Publications (1)

Publication Number Publication Date
TW314638B true TW314638B (en) 1997-09-01

Family

ID=9485135

Family Applications (1)

Application Number Title Priority Date Filing Date
TW85108227A TW314638B (en) 1995-12-05 1996-07-08

Country Status (7)

Country Link
KR (1) KR100261736B1 (en)
CN (1) CN1068970C (en)
DE (2) DE69603822D1 (en)
HK (1) HK1000563A1 (en)
MX (1) MX9606143A (en)
SG (1) SG64411A1 (en)
TW (1) TW314638B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2607654B2 (en) * 1988-12-16 1997-05-07 株式会社東芝 Indirectly heated cathode structure and electron gun structure using the same
US5218263A (en) * 1990-09-06 1993-06-08 Ceradyne, Inc. High thermal efficiency dispenser-cathode and method of manufacture therefor
KR930005377Y1 (en) * 1991-09-26 1993-08-16 이헌조 Structure frame for electron tube

Also Published As

Publication number Publication date
MX9606143A (en) 1997-08-30
HK1000563A1 (en) 2002-03-28
CN1068970C (en) 2001-07-25
SG64411A1 (en) 1999-04-27
CN1156320A (en) 1997-08-06
DE69603822D1 (en) 1999-09-23
KR970051762A (en) 1997-07-29
DE69603822T2 (en) 2000-01-20
KR100261736B1 (en) 2000-07-15

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