Principles of the selection of car connectors

1) Electric factors
Current requirements: high current, low current, signal level; determine the size of the terminal/contact segment/electroplating (0.64mm to 8.0mm needle and public terminal);

Requirements for wire diameter/insulation layer: voltage drop and/or corrosion resistance; determine the central distance of the connector

2) Location/environment
Temperature: engine compartment -sealing, ambient temperature> 105OC, vibration, fluid compatibility; passenger cabin -non -sealing, environmental temperature <85OC, mainly the factors of size are more important.

Seal: potential high -pressure jet/splash; potential immersion; humidity; fluid type; for equipment connectors, whether the device is sealed

3) Standard
Standards: Customer Standards; Institutional Standards; Domestic Standards; International Standards

Connector performance test requirements: include system -level specifications; for GM, Ford and Chrysler are usually USCAR specifications »The related applications of engines have relatively high vibration requirements; other vehicle manufacturers generally have their own standards (similar to their own standards (similar to it, similar to their own standards (similar to it, similar to their own standards (similar to it, similar to their own standards (similar to it, similar to their own standards (similar to it, similar to their own standards (similar to it (similar to the same thing as to USCAR); Trend: Equipment suppliers are responsible for the performance of the matching end connector »The equipment occupies half of the connector interface of the board.

4) Customer preference
Terminal

Design characteristics

Profile product strategy: led by procurement-need to reduce the cost of the connector system; determine through design competition; specific application: Ford-door connector design competition; Ford: preference terminal design/ supplier (follow the interface of contact with contact ); GM: Preference terminal design (follow the holes of the connector); Chrysler: The strategy of preference terminal/ plastic parts supplier

5) Regional preferences
North America: USCAR drawing/ performance/ design standards »TPA's, CPA regulations; in many instances, wire beam suppliers have a very important impact

Europe: The design of terminal contact has a great impact/developed with major vehicle manufacturers; preferred two -piece terminals, even if the cost of cost and North American transplantation business forced the vehicle manufacturers to consider North America technology; accept the tangled terminal. "Clone" is very common; long -term relationship between vehicle manufacturers and suppliers

Asia: In the traditional sense, it is influenced by Toyota. It has a long -term relationship with Yazaki and Sumitomo; the key lies in good quality and trusted relationships; it is very concerned about the assembly ability (ergonomics) that affect warranty; North America affects China to change the status quo. Low -cost solutions are the focus.

6) Physical factors
Size; Delivery; Location of matching; connection or device connection; mechanical main characteristics: leverage, bolt; hand -connected ability; multi -type connector of high input/output applications; drawing requirements; drawing requirements requirements

7) assembly
Wire beam: insertion force of the connector
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