诊断用 X 线机是普遍使用的常规医疗设备。但它的使用和操作仍采用机械控制,由于人为的操作失误或机械开关踏压不紧,常使高压继电器产生跳断性电弧,而导致电子器件、尤其是 X 线球管和高压接触器的老化或损坏。因此我们根据 X 线机的技术指标要求,研究设计了 X 线机高压自动接触器见图1。该机可按使用者各自选定的曝光时间和曝光间歇时间,自动控制高压接触器进行曝光,代替了传统的脚 Diagnostic X-ray machines are commonly used conventional medical devices. But its use and operation are still mechanical control, due to man-made mistakes or mechanical switch pressing is not tight, often make the high-voltage relay tripped arcing, which led to electronic devices, especially X-ray tube and high-voltage contactor Aging or damage. Therefore, according to the technical requirements of X-ray machine, we designed and designed X-ray machine high voltage automatic contactor. The machine can be selected according to the user’s exposure time and exposure intermittent time, automatic exposure control high-voltage contactor, instead of the traditional foot