Connecting structure and method for a shielded cable

A connecting method for connecting a shielded cable and a terminal;

• the shielded cable comprising conductive core wire, an inner insulating portion for covering the core wire, a braided wire on an outer periphery of the inner insulating portion, and an outer insulating portion located over the braided wire for covering the outer periphery of the inner insulating portion, and the terminal containing a connecting portion coated with melt-joining material, the method comprising the steps of:
• inserting the connecting portion into the shielded cable, the melt-joining material facing the braided wire;
• and
• applying ultrasonic vibration to the shielded cable through small protrusions of an ultrasonic horn in contact with the outer insulating portion, the melt-joining material melted so as to conductively connect the braided wire and the connecting portion with each other.

An ultrasonic horn for use in connecting a shielded cable and a terminal;

• the shielded cable comprising conductive core wire, an inner insulating portion for covering the core wire, a braided wire on an outer periphery of the inner insulating portion, and an outer insulating portion over the braided wire for covering the outer periphery of the inner insulating portion;
• the terminal containing a connecting portion coated with melt-joining material;
• the melt-joining material facing the braided wire with the connecting portion being inserted in the shielded cable;
• the ultrasonic horn comprising:
• an end portion coming into contact with the outer insulating portion;
• and
• a plurality of small protrusions formed on the end portion, the shielded cable subjected to ultrasonic vibration through the small protrusions of the ultrasonic horn on the outer insulating portion, whereby the melt-joining material is melted so as to conductively connect the braided wire and the connecting portion with each other.

A connecting structure for connecting a shielded cable and a grounding cable, comprising:

• a shielded cable having conductive core wire, an inner insulating portion for covering the core wire, a braided wire on an outer periphery of the inner insulating portion, and an outer insulating portion over the braided wire for covering the outer periphery of the inner insulating portion;
• and
• a grounding cable having a cable main body, a grounding terminal connected to one end of the cable main body, and a sheet-like connecting piece connected to the other end of the cable main body, the connecting piece being coated with melt-joining material;
• the melt-joining material facing the braided wire with the connecting piece being inserted in the shielded cable;
• and the shielded cable subjected to ultrasonic vibration through small protrusions of an ultrasonic horn on the outer insulating portion, whereby the melt-joining material is melted so as to conductively connect the braided wire and the connecting piece with each other.

A connecting method for connecting a shielded cable and a grounding cable;

• the shielded cable having conductive core wire, an inner insulating portion for covering the core wire, a braided wire on an outer periphery of the inner insulating portion, and an outer insulating portion over the braided wire for covering the outer periphery of the inner insulating portion;
• the method comprising the steps of:
• connecting a grounding terminal to one end of a cable main body of the grounding cable;
• providing a connecting piece on the other end of the cable main body;
• coating the connecting piece with melt-joining material;
• inserting the connecting piece into the shielded cable, the melt-joining material facing the braided wire;
• and
• applying ultrasonic vibration to the shielded cable through a plurality of small protrusions of an ultrasonic horn in contact with the outer insulating portion, the melt-joining material melted so as to conductively connect the braided wire and the connecting piece with each other.