Patent ID: 6917515

Claim:
An electrical component adapted to be mounted on a support, the support having a surface formed with an elongated receiving groove that extends in a longitudinal direction and that is confined by a groove bottom, and opposite lateral walls connected to the groove bottom, each of the lateral walls being formed with an elongated stop protrusion, the stop protrusions on the lateral walls cooperating to form a restricted access into the receiving groove that is opposite to the groove bottom in a transverse direction transverse to the longitudinal direction, said electrical component comprising: a component housing adapted to be received in the receiving groove; and a retaining device including a base extending from one end of said housing, and having a first surface adapted to be disposed on the groove bottom of the receiving groove, and a second surface opposite to said first surface in the transverse direction and disposed to be spaced apart from the stop protrusions by a first distance in the transverse direction, an engaging block adapted to be confined non-rotatably in the receiving groove and having a thickness smaller than the first distance so as to be adapted to be disposed between said second surface of said base and the stop protrusions, said engaging block having a cross-section parallel to the longitudinal direction and larger than the restricted access so as to prevent removal of said engaging block from the support through the restricted access, and being formed with a through hole that extends in the transverse direction, and an elongated fastener including an operating portion, a driving rod portion connected to said operating portion and extending rotatably through said through hole in said engaging block, and a positioning rod portion connected to said driving rod portion and coupled rotatably to said base, said driving rod portion being coupled to said engaging block such that operation of said operating portion can drive said engaging block to move along said driving rod portion from a disengaging position, where said engaging block abuts against said second surface of said base and is disposed to be spaced apart from the stop protrusions in the transverse direction, to an engaging position, where said engaging block is disposed to abut against at least one of the stop protrusions and where said positioning rod portion urges said base toward the groove bottom so as to retain said housing in the receiving groove.