A terminal protection method that is applied to a terminal is provided. In the method, an air pressure change value collected by an air pressure sensor is obtained; the air pressure change value is compared with a preset air pressure change threshold; and when the air pressure change value exceeds the preset air pressure change threshold, a break instruction is generated, where the break instruction is used to break a power supply circuit of a mainboard circuit of the terminal. According to the terminal protection method provided in the present invention, the power supply circuit of the mainboard circuit of the terminal can be timely broken when the terminal falls into water, thereby solving a problem of a short circuit that occurs on the mainboard circuit of the terminal after the terminal falls into water.

Disclosed is a device capable of preventing a short circuit even in the event of flooding. A terminal polarity fixing unit is disposed between an input terminal unit and an output terminal unit such that a first output terminal and a second output terminal are electrically connected to a neutral terminal and to a phase voltage terminal, respectively, all the time, regardless of how first and second input terminals are paired with the phase voltage terminal and the neutral terminal of an alternating-current outlet. First and second connecting terminals are electrically insulated from each other and spaced apart from each other while being exposed to one side of a body unit of a connecting terminal block made from an insulating body, and electrically connect the first and second output terminals to a load. A short circuit prevention conductor is connected to the first connecting terminal, which is in turn connected to the neutral terminal but is not connected to the second connecting terminal, and is arranged in the vicinity of the second connecting terminal so as to surround at least a portion of the side of the connecting terminal block, at least a portion of the upper portion of the connecting terminal block, and at least a portion of each of the side and upper parts of the connecting terminal block. When the connecting terminal block is flooded, the electric current flowing out of the second connecting terminal flows into the short circuit prevention conductor via the water, and an electric current sufficient for causing an electric shock does not flow to other sites.

Enhanced short circuit damage protection by using circuit card and electronic assembly features to steer liquids, including water, onto detector arrays. In a typical implementation, a circuit card has detection elements in one or more places implemented as artwork on an outer circuit layer. The finished circuit card assembly is conformal coated with masked areas over detection artwork. When the masking is removed, channels are left behind for liquids to flow toward and pool over detection artwork. In other implementations through shaping, additive or subtractive manufacturing processes, cavities are left behind for liquids to collect over detection artwork.

Provided is a controller, an air conditioner, and a high-pressure protection circuit. The controller includes a first rectifier unit, a power conversion unit, a high pressure switch (HPS) wiring terminal, a low-voltage control unit, and a high-voltage operating unit. An input end of the first rectifier unit is capable of being electrically connected to an input power supply. An output end of the first rectifier unit is electrically connected to an input end of the power conversion unit. An output end of the power conversion unit is electrically connected to a power supply end of the low-voltage control unit. The HPS wiring terminal is connected to the front end of the power supply end of the low-voltage control. The controller has a function of high-pressure protection.

Systems and methods for monitoring the moisture to which an electronic device is exposed may alter or vary operation of the electronic device. Operation of the electronic device may be altered or varied to provide a notification that the electronic device has been exposed to moisture. When an electronic device is exposed to moisture, an operational mode of the electronic device may be changed. A change in the operational mode of the electronic device may include termination of the supply of power to one or more components, which may protect those components. Programs or apps that provide a user of the electronic device with information regarding exposure of the electronic device to an amount of moisture that meets or exceeds a moisture response threshold are also disclosed.

A monitoring device for a converter of a rail vehicle. The converter has a number of power capacitors and a number of power semiconductor switches which are arranged in a common, at least substantially closed housing. The monitoring device has an evaluation device and at least one gas sensor connected to the evaluation device for signal-transmitting purposes. The evaluation device is configured to interrupt a supply of energy to the number of power capacitors of the converter depending on a concentration, detected by way of the at least one gas sensor, of at least one combustible gaseous compound in the housing of the converter.

A system is disclosed and includes an optical light source to transmit an initial optical signal through a coolant loop, an optical light sensor to receive an initial optical signal response, and in information handling system. The information handling system includes a memory to communicate with the optical light sensor to store the initial optical signal response and a processor to communicate with the memory and the optical light sensor. The processor determines a current optical signal response through the coolant loop and compares the current optical signal response to the initial optical signal response.