Abstract: The present inventive concept relates to a thermocouple connector and a manufacturing method of the same, the manufacturing method including forming connector pins, covering the connector pins using a glass material, the sensor electrodes including a positive sensor electrode and a negative sensor electrode respectively connected to the positive terminal and the negative terminal, the positive sensor electrode being the chromel and the negative terminal being the alumel, placing the connector pins in a center of a surrounding sealing material having a hole, filling liquid ceramic material into a space of the surrounding sealing material through the hole, sealing the hole, and solidifying the liquid ceramic material. According to the present inventive concept, the connector pin is provided by using the same kind of material as a material of the thermocouple sensor, whereby output voltage error is minimized and output voltage change due to long-term use is low.

Abstract: The present inventive concept relates to a method of determining installation stability of a power source surge protector and a power source surge protector. The method including: detecting, by a detector at a detection step, a voltage between a phase and a ground, and a voltage between a neutral wire and the ground to transmit the detected voltages to a microcontroller (MCU); and determining, by the MCU at a determination step, whether connection of the phase and the neutral wire is normal by comparing the transmitted voltages with predetermined reference voltages.

Abstract: A multi-positional switch that provides an immediate tactile sensation to the operator regarding the various switching positions of the switch through touch sensing includes a push button mounted to a housing which is capable of being depressed and toggled for moving a drive stem interconnected thereto into electrical engagement with either axial or radially disposed contact terminals projecting from the lower end of the housing. A toggle plate is mounted within the housing and provides a surface for the drive stem to ride upon and provide resistance in order to contact the radially disposed terminals when the push button is toggled, while depression of the push button in the axial direction causes the drive stem to pass through an aperture of the toggle plate, forcibly contacting and passing by a resistance pin subjacent the toggle plate for engaging an axial mounted terminal for conveying the tactile feel to the operator.