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1、 Reference number ISO 7638-2:2003(E) ISO 2003 INTERNATIONAL STANDARD ISO 7638-2 Second edition 2003-11-15 Road vehicles Connectors for the electrical connection of towing and towed vehicles Part 2: Connectors for braking systems and running gear of vehicles with 12 V nominal supply voltage Vhicules
2、routiers Connecteurs pour liaisons lectriques entre vhicules tracteurs et vhicules tracts Partie 2: Connecteurs pour les quipements de freinage et les organes de roulement des vhicules tension nominale de 12 V ISO 7638-2:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accorda
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5、g. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2003 All rights reserved. Unless otherwise specified, no part of this pub
6、lication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Gen
7、eva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2003 All rights reserved ISO 7638-2:2003(E) ISO 2003 All rights reserved iii Contents Page Forewordiv 1 Scope1 2 Normative references .1 3 Terms and definitions.2 4 Dimensional
8、 characteristics 2 5 Application of the connector .2 6 Tests and specific requirements.8 -,-,- ISO 7638-2:2003(E) iv ISO 2003 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of
9、preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental,
10、 in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main t
11、ask of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attent
12、ion is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 7638-2 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 3, Electrical and
13、electronic equipment. This second edition cancels and replaces the first edition (ISO 7638-2:1997), which has been technically revised taking into account the very latest revisions of ISO 4009 and ISO 4091. ISO 7638 consists of the following parts, under the general title Road vehicles Connectors fo
14、r the electrical connection of towing and towed vehicles: Part 1: Connectors for braking systems and running gear of vehicles with 24 V nominal supply voltage Part 2: Connectors for braking systems and running gear of vehicles with 12 V nominal supply voltage INTERNATIONAL STANDARD ISO 7638-2:2003(E
15、) ISO 2003 All rights reserved 1 Road vehicles Connectors for the electrical connection of towing and towed vehicles Part 2: Connectors for braking systems and running gear of vehicles with 12 V nominal supply voltage 1 Scope This part of ISO 7638 gives the dimensions of, and specifies the contact a
16、llocation and tests and test requirements for, connectors for the electrical connection of the braking systems and running gear of towing and towed vehicles with 12 V nominal supply voltage. In addition, it specifies a park socket used to receive and store the plug when disconnected. 2 Normative ref
17、erences The following referenced documents are indispensable for application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4009, Commercial vehicles Location of ele
18、ctrical and pneumatic connections between towing vehicles and trailers ISO 4091, Road vehicles Connectors for the electrical connection of towing and towed vehicles Definitions, tests and requirements ISO 4141 (all parts), Road vehicles Multi-core connecting cables ISO 7638-1, Road vehicles Connecto
19、rs for the electrical connection of towing and towed vehicles Part 1: Connectors for braking systems and running gear of vehicles with 24 V nominal supply voltage ISO 11992-1, Road vehicles Interchange of digital information on electrical connections between towing and towed vehicles Part 1: Physica
20、l layer and data-link layers ISO 11992-2, Road vehicles Interchange of digital information on electrical connections between towing and towed vehicles Part 2: Application layer for brakes and running gear ISO 120981), Road vehicles Connectors for the electrical connection of towing and towed vehicle
21、s 15-pole connector for vehicles with 24 V nominal supply voltage 1) To be published. (Revision of ISO 12098:1994) ISO 7638-2:2003(E) 2 ISO 2003 All rights reserved 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 4091 apply. 4 Dimensional characteris
22、tics 4.1 General Details not specified are at the manufacturers discretion. The contacts shall be floating and shall align to the datum position when plug and socket are engaged. 4.2 Plug Dimensions of the plug shall be in accordance with Figure 1. The locking lever design shall take into considerat
23、ion the space required for screws used to fasten the socket (see Figure 2). 4.3 Socket Dimensions of the socket shall be in accordance with Figure 2. The cover is shown in open position: It shall close automatically when the plug is disconnected. 4.4 Park socket Dimensions of the park socket shall b
24、e in accordance with Figure 3. The cover is shown in open position: it shall close automatically when the plug is disconnected. 5 Application of the connector 5.1 General The coiled cable assembly is fitted to the semi-trailer towing vehicle (fifth-wheel tractor). The coiled cable assembly may be co
25、nnected to the electrical on-board network of the towing vehicle with or without the connection (see Figure 4). The uncoiled cable assembly is fitted to the drawbar trailer. Therefore, the trailer towing vehicle (drawbar tractor) shall be fitted with a socket mounted at the rear of the vehicle (see
26、Figure 4). ISO 7638-2:2003(E) ISO 2003 All rights reserved 3 Dimensions in millimetres a Dimension refers to the locking lever in its locked position. b If Contacts 6 and 7 are not used, blanking plugs shall be inserted to accept later fitment of that pins and tubes. c The sealing ring shall be moun
27、ted such that it cannot become detached under normal use. d Centre of cover rest. e See ISO 4141-3. f Other housing designs are permitted provided they are in compliance with the maximum distance of 58 mm for the locking lever. g Minimum space required for the ejection from the socket. h Spring tube
28、. i Contact numbers. Figure 1 Plug ISO 7638-2:2003(E) 4 ISO 2003 All rights reserved Dimensions in millimetres Figure 2 Socket ISO 7638-2:2003(E) ISO 2003 All rights reserved 5 a The sealing ring shall be mounted such that it cannot become detached under normal use. b For existing products for which
29、 the cable outlet is mounted from the rear, the outside diameter of the outlet may be larger with the vehicle manufacturers agreement. However, to ensure socket exchangeability, future applications should have a maximum outside diameter of 54 mm over a maximum length of 75 mm. c Opening angle W 120.
30、 d Reference point for engaged locking lever. e Ejector. f Minimum space required for screws used to fasten the socket. g This area shall be smooth and burr-free. Figure 2 Socket (continued) ISO 7638-2:2003(E) 6 ISO 2003 All rights reserved Dimensions in millimetres a The sealing ring shall be mount
31、ed such that it cannot become detached under normal use. b Opening angle W 120 min. c Reference point for engaged locking lever. Figure 3 Park socket ISO 7638-2:2003(E) ISO 2003 All rights reserved 7 Key 1 socket 2 park socket 3 plug a See 5.1. Figure 4 Electrical connection positions 5.2 Connector
32、positions and free space The positions of, and free space around, the connectors shall be in accordance with ISO 4009. 5.3 Contact allocation The contact allocation shall be in accordance with Table 1. Table 1 Contact allocation Contact No. Function 1 Plus electrovalve 2 Plus electronics 3 Minus ele
33、ctronics 4 Minus electrovalve 5 Warning device a 6 CAN_H b 7 CAN_L b a The warning device is controlled through Contact 5. This contact has an open circuit during normal operation (see Figure 5). b In accordance with ISO 11992-1 and ISO 11992-2. ISO 7638-2:2003(E) 8 ISO 2003 All rights reserved Figu
34、re 5 Warning device 5.4 Contact designation The contact designation numbers shall be permanently marked on the inside of the socket cover and on the terminal faces of both plug and socket. The character size shall not be less than 2 mm. However, where limited space is available, a smaller size may b
35、e used on the terminal face. 5.5 Terminals The terminals at the rear side of the pins and tubes shall be capable of accepting cables with the following nominal cross-sectional areas. Contacts 1 and 4: 4 mm2; Contacts 2, 3, 5, 6 and 7: 1,5 mm2. Terminals accepting cables of a different cross-sectiona
36、l area shall be as agreed between manufacturer and user. 5.6 Connecting cable The connecting cable shall meet the requirements of the applicable parts of ISO 4141. 6 Tests and specific requirements 6.1 General Connectors according with this part of ISO 7638 shall be tested in accordance with ISO 409
37、1 whose requirements they shall meet, except where specified differently in the following subclauses. 6.2 Mismating It shall be impossible to make contact between any tube or pin of the plugs and sockets according to this part of ISO 7638 and the pins and tubes of connectors according to ISO 12098 a
38、nd ISO 7638-1 without the use of excessive force. ISO 7638-2:2003(E) ISO 2003 All rights reserved 9 6.3 Connection and disconnection The connection and disconnection forces shall not exceed 35 N when tested in accordance with ISO 4091. 6.4 Endurance Carry out the endurance test in accordance with ISO 4091, but for 10 000 cycles. ISO 7638-2:2003(E) ICS 43.040.10; 43.040.40 Price based on 9 pages ISO 2003 All rights reserved