Clock spring

The utility model discloses a clock spring which comprises a shell, an upper knob cover and a control assembly, the control assembly is arranged between the shell and the upper knob cover, and the control assembly comprises a control unit and a conducting ring; the conductive ring is provided with an integrally formed pin. According to the utility model, the structural design is reasonable, and the conducting ring and the contact pin are subjected to integral injection molding or punch forming, so that the assembly procedures are reduced, the process of the welding process is omitted, unnecessary waste of labor cost and time cost is avoided, and the reliability is improved. 本实用新型公开了一种时钟弹簧，包括外壳、上旋钮盖和控制组件，所述控制组件设于外壳和上旋钮盖之间，所述控制组件包括控制单元和导电环；所述导电环上设有一体成型的插针。本实用新型结构设计合理，通过将导电环和插针一体注塑或冲压成型，减少了装配程序，省去了焊接工艺的流程，避免了不必要的人力成本和时间成本的浪费，增加了可靠性。