Abstract: A coupling assembly includes a first coupler, a second coupler connected to the first coupler, a first base, at least one pin, at least one elastic member sleeved on the pin, a resilient ring sleeved on the second coupler and between the second coupler and the protrusion, and a second base. A hole of the first base is radially separated from the first through hole. The resilient ring includes at least one convex portion and at least one concave portion arranged alternately. The second base includes a body and at least one protrusion protruding from a side of the body close to the first base. The body is movably disposed on the first base along the axial direction through the pin and the elastic member. The second coupler passes through the body. The convex portion abuts against the protrusion.

Abstract: The invention provides a positioning tool and a busbar mounting method. The positioning tool includes a first mount, a second mount, a first link, a second link and a positioning base. The first mount and the second mount are configured to be mounted on opposite sides of the server cabinet, respectively. The first link and the second link are spaced apart from each other. Opposite ends of the first link are respectively pivotally connected to the first mount and the second mount. Opposite ends of the second link are respectively pivotally connected to the first mount and the second mount. The positioning base is pivotally connected to the first link and the second link. The positioning base is located between the first mount and the second mount and is configured to position the busbar.

Abstract: The invention provides a positioning tool and a busbar mounting method. The positioning tool includes a first mount, a second mount, a first link, a second link and a positioning base. The first mount and the second mount are configured to be mounted on opposite sides of the server cabinet, respectively. The first link and the second link are spaced apart from each other. Opposite ends of the first link are respectively pivotally connected to the first mount and the second mount. Opposite ends of the second link are respectively pivotally connected to the first mount and the second mount. The positioning base is pivotally connected to the first link and the second link. The positioning base is located between the first mount and the second mount and is configured to position the busbar.

Abstract: A holding device having a printed circuit board includes a base having a securing recess at a top surface thereof, a securing connector fixed in the securing recess and connected with the printed circuit board, a holding shell rotatably covered to the securing connector, and a flexible antenna of flat plate shape. The antenna has a rectangular radiating body, and a strip-shaped connecting portion extended outwards from a side of the radiating body. A free end of the connecting portion is held by the holding shell and rotated to connect with the securing connector electrically and detachably. An exposed portion of the connecting portion is bent so that the radiating body is attached to the top surface of the base.

Abstract: An electrical connector includes an insulating housing which has a base. Each side surface of the base protrudes outward to form a fixing block and a guiding block. A receiving groove is formed between the fixing block and the guiding block. A plurality of signal terminals are disposed in the insulating housing. A pair of positioning members each has a fixing board fastened in the fixing block. A front end of the fixing board extends frontward and then is arched oppositely to the base to form a flexible board elastically received in the receiving groove and has the apex project out of the receiving groove. When the electrical connector is inserted into the inserting mouth, the guiding block slips into the receiving fillister. The apex of the flexible board slips over the corresponding clipping element and then is restrained by the clipping element.

Abstract: A holding device having a printed circuit board includes a base having a securing recess at a top surface thereof, a securing connector fixed in the securing recess and connected with the printed circuit board, a holding shell rotatably covered to the securing connector, and a flexible antenna of flat plate shape. The antenna has a rectangular radiating body, and a strip-shaped connecting portion extended outwards from a side of the radiating body. A free end of the connecting portion is held by the holding shell and rotated to connect with the securing connector electrically and detachably. An exposed portion of the connecting portion is bent so that the radiating body is attached to the top surface of the base.