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    • 1. 发明专利
    • Motor protective device
    • 电机保护装置
    • JP2003338238A
    • 2003-11-28
    • JP2002146861
    • 2002-05-21
    • Ubukata Industries Co Ltd株式会社生方製作所
    • TOGAMI SEIJIKIMURA SHIGEOODA KENJI
    • F04B39/00F04B49/10H01H37/10H01H37/14H01H37/54H02K11/00
    • PROBLEM TO BE SOLVED: To obtain a motor protective device which is used for a sealed motor compressor and has a function to detect an abnormal refrigerant pressure together with an over-current and an overheat. SOLUTION: A pressure-proof container is constituted of a container 2 and a cover plate 3 in the motor protective device 1. A stationary contact point 9 is adhered to one electroconductive terminal pin 8A insert-penetrating and fixed to the cover plate 3. A thermally-actuating plate 5 is connected with and fixed to the inner face of the container 2, and the movable contact point 6 is arranged open-close free with the stationary contact point 9. In the motor protective device 1, because a thermally-actuating plate fixing position 2A of the container 2 is flattened and deformed, the pressure between the contact points is adjusted, and the operated temperature is calibrated. A displacement part 2B which is made easier to deform by making the plate thickness thinner than that of its peripheral part is installed in the vicinity of the thermally- actuated plate fixing position. The operating temperature of the thermally- actuated plate can be reduced because the displacement part 2B of the container is deformed in the smashed direction if it is exposed to a high pressure state. Therefore, the current supply can be cut off under a high pressure. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:获得用于密封电动机压缩机的电动机保护装置,并且具有检测异常制冷剂压力以及过热和过热的功能。

      解决方案:电动机保护装置1中的耐压容器由容器2和盖板3构成。固定接触点9粘附到一个导电端子销8A插入件,并且固定到盖板 热驱动板5与容器2的内表面连接并固定在其上,可动触点6与固定触点9开放自由。在马达保护装置1中,因为 容器2的热致动板固定位置2A变平且变形,调整接触点之间的压力,校正操作温度。 通过使板厚度比其周边部分薄的方式变得容易变形的位移部分2B安装在热致动板固定位置附近。 如果容器的位移部分2B暴露于高压状态,则可以减小热致动板的操作温度,因为容器的位移部分2B以粉碎方向变形。 因此,可以在高压下切断电流供应。 版权所有(C)2004,JPO