1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro
2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.QUESTIONS REGARDING THIS DOCUMENT: (724) 772-8512 FAX: (724) 776-0243TO PLACE A DOCUMENT
3、 ORDER; (724) 776-4970 FAX: (724) 776-0790SAE WEB ADDRESS http:/www.sae.orgCopyright 1971 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.S.A.SURFACEVEHICLE400 Commonwealth Drive, Warrendale, PA 15096-0001RECOMMENDEDPRACTICESubmitted for recognition as an American National Sta
4、ndardJ235ISSUEDMAY71Issued 1971-05ELECTRIC BLOWER MOTOR SWITCHForewordThis Document has not changed other than to put it into the new SAE Technical Standards BoardFormat.1. Scope2. ReferencesThere are no referenced publications specified herein.3. Definitions3.1 Electric Blower Motor SwitchAn electr
5、ic blower motor switch is that part of a blower system by which theoperator of a vehicle causes a blower motor to function.4. Temperature Test4.1 To insure basic function, the switch shall be manually cycled for 10 cycles at design electrical load at 75 10F(24 5.5 C), 165, +0, -5 F (74, +0, -2.8 C),
6、 and -25, +5, -0 F (-32, +2.8, -0 C) after a 1 h exposure at each ofthese temperatures. The switch shall be electrically and mechanically operable during each of these cycles.4.2 This same switch shall be used for the endurance test described below.5. Endurance Test Setup5.1 The switch shall be set
7、up to operate its design electrical load.5.2 The test shall be set up to operate the switches for the prescribed number of complete cycles.One complete cycle shall consist of sequencing through each position (with dwell in each position) and returnwithout dwell in intermediate positions to the initi
8、al position.The test equipment shall be so arranged as to provide the following mechanical time requirements:Travel Time0.1-0.5 s (time from one position to the next).Dwell Time0.5-1.0 s (time in each position).5.3 During the test the switch shall be operated at 6.4 V d-c for a 6 V system, 12.8 V d-
9、c for a 12 V system, or 25.6V d-c for a 24 V system.SAE J235 Issued MAY71-2-These voltages shall be measured at the input termination on the switch.The power supply shall not generate any adverse transients not present in motor vehicles and shall complywith the following specifications:a. Output Cur
10、rentCapable of supplying the continuous current of the design electrical load.b. RegulationDynamicThe output voltage at the supply shall not deviate more than 1.0 V from zero to maximumload (including inrush current) and should recover 63% of its maximum excursion within 100 ms.StaticThe output volt
11、age at the supply shall not deviate more than 2% with changes in static loadfrom zero to maximum (not including inrush current), and means shall be provided to compensate forstatic input line voltage variations.c. Ripple VoltageMaximum 300 mV peak to peak.6. Endurance Requirements6.1 The switch shal
12、l be capable of satisfactorily operating for 10,000 complete cycles at a temperature of 7510F(24 5.5 C) followed by 1 h ON in low position at 75 10 F (24 5.5 C).6.2 The average voltage drop from the input terminal(s) to the corresponding average output terminal(s) shall bemeasured before and after t
13、he endurance test and shall not exceed 0.30 V (the average of three readings) atdesign load. If wiring is an integral part of the switch, the voltage drop measurement shall be made including3in. of wire on each side of the switch; otherwise, measurement shall be made at switch terminals.PREPARED BY THE SAE ELECTRICAL EQUIPMENT COMMITTEESAE J235 Issued MAY71RationaleNot applicable.Relationship of SAE Standard to ISO StandardNot applicable.ApplicationNot applicable.Reference SectionThere are no referenced publications specified herein.Developed by the SAE Electrical Equipment Committee
