BS EN 60139-2001 Preparation of outline drawings for cathode-ray tubes their components connections and gauges《阴极射线管及其部件、连接件和量规的外形图的绘制》.pdf

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1、BRITISH STANDARD BS EN 60139:2001 IEC 60139:2000 Preparation of outline drawings for cathode-ray tubes, their components, connections and gauges The European Standard EN 60139:2001 has the status of a British Standard ICS 01.100.25: 31.100 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COP

2、YRIGHT LAWBS EN 60139:2001 This British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 August 2001 BSI 08-2001 ISBN 0 580 37969 8 National foreword This British Stan

3、dard is the official English language version of EN 60139:2001. It is identical with IEC 60139:2000. The UK participation in its preparation was entrusted to Technical Committee EPL/39, Electronic tubes, which has the responsibility to: A list of organizations represented on this committee can be ob

4、tained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identif

5、iers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of

6、 the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.

7、aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages

8、This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 31 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 60139 NORME E

9、UROPENNE EUROPISCHE NORM March 2001 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2001 CENELEC - All rights of exploitation in

10、 any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60139:2001 E ICS 31.100 Supersedes HD 147 S1:1977 English version Preparation of outline drawings for cathode-ray tubes, their components, connections and gauges (IEC 60139:2000) Prparation des dessins dencombrement des t

11、ubes rayons cathodiques, de leurs composants, de leurs connexions et de leurs calibres (CEI 60139:2000) Anfertigung von Umrisszeichnungen fr Kathodenstrahlrhren, deren Bauteile, Anschlsse und Lehrenmae (IEC 60139:2000) This European Standard was approved by CENELEC on 2001-01-01. CENELEC members are

12、 bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to t

13、he Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the

14、same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Forewor

15、d The text of document 39/254/FDIS, future edition 2 of IEC 60139, prepared by IEC TC 39, Electronic tubes, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60139 on 2001-01-01. This European Standard supersedes HD 147 S1:1977. The following dates were fixed: latest d

16、ate by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2001-10-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2004-01-01 Annexes designated “normative“ are part of the bod

17、y of the standard. In this standard, annex ZA is normative. Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60139:2000 was approved by CENELEC as a European Standard without any modification. _ EN60139:20012 BSI 08-2001 CONTENTS Page Clause 1 Scope

18、 5 2 Normative references. 5 3 Definitions . 5 3.1 Terms and definitions . 5 3.2 Units and symbols 8 4 General requirements 8 4.1 Required views. 8 4.2 General rules and guidelines for the outline drawings . 8 5 Specific requirements 9 5.1 Specific requirements of CRT outline drawings. 9 5.1.1 Front

19、 view of the CRT. 9 5.1.2 Top view of the CRT . 9 5.1.3 Side view of the CRT 9 5.1.4 Diagonal view of the CRT 10 5.1.5 Clearance regions for the band junctions .10 5.1.6 Mounting lugs 10 5.1.7 Clearance region for integral neck components10 5.2 Specific requirements for glass outline drawings10 5.2.

20、1 CRT panel .10 5.2.2 CRT funnel 11 5.2.3 Reference line gauge.11 5.2.4 Beam clearance gauge 11 5.3 Specific requirements of CRT connection drawings11 5.3.1 CRT base mechanical outline.12 5.3.2 CRT base connection table12 5.3.3 CRT anode outline drawings 12 Specimen outline drawings Figure 1 Front v

21、iew of the CRT 13 Figure 2 Top view of the CRT 14 Figure 3 Side view of the CRT. 15 Figure 4 Diagonal view of the CRT 16 Figure 5 Clearance regions for the band junctions. 17 Figure 6 Mounting lug detail 18 Figure 7 Clearance region for integral neck components . 19 Figure 8 CRT panel contour define

22、d by radii 20 Figure 9 CRT panel contour defined by equation. 21 Figure 10 CRT funnel 22 EN60139:20013 BSI 08-2001 Page Figure 11 CRT funnel contour table. 23 Figure 12 Yoke reference line gauge defined by equation . 24 Figure 13 Yoke reference line gauge defined by radii 25 Figure 14 Beam clearance

23、 gauge defined by equation. 26 Figure 15 Beam clearance gauge defined by radii . 27 Figure 16 CRT base mechanical outline 28 Figure 17 Example of CRT base connection table . 29 Figure 18 CRT anode button . 30 EN60139:20014 BSI 08-2001 PREPARATION OF OUTLINE DRAWINGS FOR CATHODE-RAY TUBES, THEIR COMP

24、ONENTS, CONNECTIONS AND GAUGES 1 Scope This International Standard gives guidance on the preparation of outline drawings of cathode- ray tubes (CRTs), tube components, tube sub-assemblies and ancillary components with the object of encouraging the same practice when publications are prepared in diff

25、erent countries. These recommendations are contained in the specimen drawings, descriptive text and in the tables of required dimensions. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Sta

26、ndard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated

27、below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 60027-1:1995, Letter symbols to be used in electrical technology Part 1: General IEC 60050 (all parts), Internati

28、onal Electrotechnical Vocabulary (IEV) IEC 60617 (all parts), Graphical symbols for diagrams ISO 1000: SI units and recommendations for the use of their multiples and of certain other units 3 Definitions 3.1 Terms and definitions For the purpose of this International Standard, the following definiti

29、ons apply. 3.1.1 anode button conductive contact which provides electrical continuity from the outside of the insulating envelope to the anode electrode inside the tube 3.1.2 axes of the CRT 3.1.2.1 principal axis axis perpendicular to the panel and the phosphor screen which passes through the centr

30、e point of the panel, the funnel, deflection yoke region and the electron gun EN60139:20015 BSI 08-2001 3.1.2.2 major axis axis in the direction of the longer dimension of the CRT screen which passes through and is perpendicular to the principal axis, normally the horizontal axis 3.1.2.3 minor axis

31、axis along the shorter dimension of the CRT screen which passes through and is perpendicular to the principal axis, normally the vertical axis 3.1.2.4 diagonal axis axis connecting opposite corners of the CRT screen 3.1.3 band hardware that surrounds the CRT panel and 1) holds the mounting lugs and

32、implosion safety hardware to the CRT, 2) applies compressive loads to the panel for mechanical safety and 3) contains the panel glass temporarily in the event of breakage NOTE This band may be mechanically tensioned and joined at a junction; it may be joined to the CRT with resin, or it may also be

33、a single piece that is thermally shrunk over the panel (so called shrink-fit). 3.1.4 beam clearance clearance between the electron beam path and the flare region of the funnel connecting the CRT neck to the body of the funnel NOTE Prevention of beam impact on the glass is critical for proper operati

34、on. 3.1.5 centre face thickness (CFT) thickness of the panel at its centre 3.1.6 corner angle angle between the major axis and a diagonal of the nominal screen of the design aspect ratio 3.1.7 deflection angles angles subtended by the major axis, minor axis and diagonal dimensions of the screen as v

35、iewed from yoke reference line 3.1.8 design aspect ratio design value of the ratio of the long to short dimensions of a rectangular area, typically expressed as a ratio of whole integers such as “4 by 3” or “16 by 9” 3.1.9 diagonal line joining opposing corners 3.1.10 frit seal line line formed by t

36、he frit joint between the panel and funnel 3.1.11 heel radius radius of the blend between the principal panel surface and the panel skirt EN60139:20016 BSI 08-2001 3.1.12 integral neck components devices attached to the neck and/or funnel of the CRT by the manufacturer 3.1.13 lug mounting hardware t

37、hat has a blade section generally furnished with a mounting hole to receive a mounting bolt 3.1.14 magnetic shield ferromagnetic cone, roughly the shape of the funnel, that excludes external magnetic fields from the electron beam region 3.1.15 mould-match line line of maximum dimension of the moulde

38、d part, located at the mating plane of the two halves of a mould 3.1.16 mounting system hardware attached to the CRT that facilitates mounting the CRT 3.1.17 projected screen dimensions screen dimensions as they appear to a viewer outside the CRT (at infinite distance) NOTE The dimensions are projec

39、ted along optical paths from the screen surface onto a plane perpendicular to the principal CRT axis. 3.1.18 reference line yoke reference line fundamental plane for measurement and control of the funnel geometry 3.1.19 sagittal height height from a plane tangential to the surface (of the panel) at

40、its centre 3.1.20 screen diagonal diagonal of the largest rectangle of the design aspect ratio inscribed within the screen boundary 3.1.21 useful screen dimensions projected dimensions of the inner surface of the glass panel determined useful by the CRT glass manufacturer 3.1.22 useful phosphor scre

41、en dimensions projected dimensions of the phosphor screen determined useful by the CRT manufacturer 3.1.23 z-axis axis of a CRT component or CRT gauge typically aligned with the principal axis of the CRT EN60139:20017 BSI 08-2001 3.1.24 Z-point reference point on the external surface of the panel al

42、ong the diagonal 3.2 Units and symbols Units, graphical symbols and letter symbols should, wherever possible, be taken from the publications listed in clause 2 of this standard. When further items are required they should be derived in accordance with the principles of these publications. 4 General

43、requirements This standard prescribes the outline drawing views and the dimensions and descriptions required for documenting a generic CRT design. The recommendations for each drawing are specified in 5.1, 5.2, 5.3 and specimen drawings are shown in figure 1 through figure 18. If the phosphor screen

44、 extent is hidden by the band, the degree of vignetting should be indicated on one of the views. 4.1 Required views In general, the views required to describe a rectangular CRT shall be the front, top, side and diagonal. When the implosion protection and mounting system is integral to the tube, a se

45、cond front view and the mounting lug outline drawing may be included. The components of the CRT (panel, funnel, base, reference line gauge, beam clearance gauge and ancillary equipment) are part of the outline drawing information. Monochrome and projection CRTs may not require all of the entries. If

46、 the dimensions mentioned in the tabular layout below the specimen outline drawings are applicable to the tube to be described, they shall be given on the outline sheet. If the CRT has appendages or features not described in this standard, additional views shall be included to fully describe them. 4

47、.2 General rules and guidelines for the outline drawings The specific guidelines for each drawing have been chosen based on balancing the amount of detail and quantity of dimensions on each drawing. If future designs require more or less detail on certain views, it is appropriate to relocate dimensi

48、onal information to other views so long as the information is retained in an unambiguous manner. The drawing shall show all dimensions necessary to assure clearances and mating with auxiliary accessories. Drawings need not be drawn to scale, but they shall be roughly in proportion and, where necessa

49、ry for clarity, an enlarged detail drawing shall be used. Angles shall be indicated as follows: a) by quoting the value in degrees and minutes and seconds or in decimal notation. Where this is not practical, the value may be quoted in fractions of degrees; b) where it is self-evident that a number of angles are of equal value, the value of only one of those angles shall be quoted. EN60139:20018 BSI 08-2001 5 Specific requirements 5.1 Specific requirements of CRT outline drawings The following view