(1) Electrical Factors
Current Requirements: high current, low current, signal level; determines the type of terminal / contact segment size / plating (0.64mm to 8.0mm needles and male terminals); steady, circulation, transient diameter / insulation layer requirements : voltage drop and / or anti-corrosion; determines the connector center distance
(2) Location / environment
Temperature: the engine compartment - sealed, ambient temperature & gt; 105oC, vibration, fluid compatibility; the passenger compartment - unsealed, ambient temperature & lt; 85oC, the main dimensions of the more important factors
Seal: Potential high-pressure jet / splash; potential immersion; humidity; fluid type; for device connector, the device is sealed
(3) Standard
Standard: customer standards; institutional standards; national standards; international standards
Connector performance testing requirements: included in the system-level specifications; for GM, Ford and Chrysler, it is usually USCAR specifications & amp; raquo; related applications have relatively high engine vibration requirements; other OEMs generally have their own standards (similar USCAR); trend: device-side vendors to pair with end performance of the connector is responsible for & amp; raquo; equipment accounted for half board fitting connector interface & amp; raquo; equipment suppliers were asked to pair with end It offers good communication
(4) customer preferences
Terminal Type
Design features
Product strategy preferences: Purchases dominant - the need to reduce costs connector system; determined by the design competition; specific applications: Ford - Door connector design competition; Ford: Preference terminal design / supplier (focus on the contact interface ); General: Preference terminal design (focus on the connector holes); Chrysler: Preference Terminal / plastic parts supplier strategy
(5) Regional Preference
North America: USCAR drawing / performance / design standards & amp; raquo; Tangless terminals, TPA's, CPA regulations; in many instances, the wire harness suppliers have a significant impact
Europe: a great influence on the design of the terminal contact / and major OEMs to develop together; prefer two-piece terminal, even though cost pressures and the North American transplant business forcing OEMs to consider technology in North America; accepted Tangled terminals. "Clone" is very common; long-term relationship OEMs and suppliers
Asia: Toyota affected by the traditional sense. And YAZAKI and SUMITOMO long-term relationship; the key is good quality and trusted relationships; very concerned about the ability to affect the quality of assembly (ergonomics); North American influence China to change the status quo. Cost-effective solution is the key.
(6) physical factors
Size; the number of loops; for with location; harness or docking device is connected; mechanical main characteristics: lever, bolt; manual docking capability; high input / output applications, multi-type connector; drawings
(7) Assembly
Harness: insertion force connector
Visual, audible, tactile feedback operatives
Ergonomic
High-speed manual