| 摘要 |
A jack includes a housing having a cylindrical piece, a body, and at least one external connection terminal. The cylindrical piece includes a plug insertion hole and the body includes an inner chamber. The plug insertion hole and the chamber receive a plug for electrical connection to a circuit. The external connection terminals are fixed to the housing in grooves to simplify assembly. The external connection terminals include elastic pieces and contact pieces. During an assembly with the plug, elastic pieces elastically urge contact pieces into electrical contact with an inner conduction portion of the plug and provide secure electrical connection.
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