Technical specification of electromagnetic clutch for compressor of A/C
1 Scope
This standard specifies the terms, requirements, test methods, inspection rules and marking, packaging, transportation and storage for electromagnetic clutch for automotive A/C compressor (hereinafter referred to as “the clutch”).
This standard is applicable to the electromagnetic clutch for automotive A/C compressor.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions, of any of these publications do not apply. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies.
GB/T 2423.17 Environmental testing for electric and electronic products — Part 2: Test methods — Test Ka: Salt mist (IEC 60068-2-11:1981, IDT)
GB/T 9286 Paints and varnishes — Cross cut test for films
QC/T 413-2002 Basic technical requirements for automotive electric equipment
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
electromagnetic clutch for compressor of A/C
power input driver of automotive A/C compressor, composed of pulley assembly, coil assembly and clutch disc assembly, as shown in Figure 1
3.2
air gap
gap between the pulley and the disc when the clutch is not operating, as shown in Figure 1
3.3
pull-in voltage
minimum voltage to eliminate the maximum air gap
Foreword iii
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Test methods
6 Inspection rules
7 Marking, packaging, transportation and storage
