| 摘要 |
A coil bobbin ( 10 ) that comprises a housing ( 12 ) with an interior ( 13 ) and including a floor ( 14 ) with at least one electrical lead-in ( 16 ) projecting through an aperture ( 15 ) in the floor. The lead-in ( 16 ) has one end ( 17 ) formed for attachment to a printed circuit board ( 18 ). The electrical lead-in ( 16 ) has a given diameter D 1 and is provided with thermal-strain relief ( 20 ) positioned within the interior ( 13 ) of housing ( 14 ). The aperture ( 15 ) has a diameter D 2 larger than the given diameter D 1 of the lead-in. The larger diameter D 2 of the aperture allows free movement of the lead-in during thermal cycling and contributes to the desired result. This construction also allows the use of round lead-ins over the previously employed square lead-ins, which were required to provide the rigid interference fit previously necessary.
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