Electrical coupler for detachable interconnection between a main unit and an external unit

摘要

An electrical coupler (30) which is capable of being easily assembled into a main unit (10) for electrically detachable interconnection of an external unit (20) to the main unit (10). The coupler (30) includes a dielectric header (32) which carries an array of first terminal ends (41) and an array of second terminal ends (42) which are engageable with an arrays of first contacts (51) of the main unit (10) and an array of second contacts (62) of the external unit (20) for establishing electrical interconnection therebetween. The header (32) is made of a rigid material which integrally supports the array of the second terminal ends (42) to define thereat a terminal connector (39) responsible for detachable connection to the external unit (20). The header (32) is molded to have a mount flange (35) as an integral part thereof for securely fixing the header (32) to an enclosure (11) of the main unit (10). A height adjusting mechanism is provided to vary the vertical position of the header (32) relative to a main circuit board (12) with which the first terminal ends (41) are connected internally of the main unit (10), thereby adjusting the height of the terminal connector (39) from the main circuit board (12). Thus, the electrical coupler (30) can be successfully assembled into the main unit (10) with the terminal connector (39) located at a suitable position for connection with the external unit (20), yet assuring easy fixing of the terminal connector (39) at that position to the enclosure (11) in such a manner that the pulling and pushing forces exerted at the time of connecting and disconnecting the external unit (20) to and from the terminal connector (39) are well withstood.