An electrical safety device is described which includes a socket arranged to receive an electrical plug of an electrical appliance to connect a current supply to the electrical appliance, a thermal sensor arranged to detect the surface temperature of an electrical plug when received in the socket and a processor in communication with the thermal sensor, the processor configured to determine when the sensed surface temperature exceeds a predetermined threshold. The invention also includes an electrical safety system comprising the electrical safety device configured to communicate with a remote device. The device and system provide early detection of electrical faults and hazards to reduce the risk of fires.

Disclosed is an apparatus for sensing a temperature of an electric vehicle charger during charging of an electric vehicle. The apparatus is configured to sense the temperature of a charging pins using a temperature sensor provided in a charging plug, to transmit the same to the charger by serial communication using the existing signal line without adding a separate signal line, and to be supplied with power necessary for ICs and devices in the charging plug using the existing signal line during charging of the electric vehicle.

A connector includes a terminal, a housing, a temperature sensor, and a holding structure. The holding structure holds the temperature sensor so as to be movable in at least a first orthogonal direction in a space portion (housing formation space portion). The housing has the base portion and the pressing arm portion extending from the base portion in the contact direction and elastically deformable with respect to the first orthogonal direction orthogonal to the contact direction. The pressing arm portion has a protrusion portion that protrudes into the space portion and comes into contact with the temperature sensor. When the protrusion portion comes into contact with the temperature sensor, the pressing arm portion is elastically deformed to press the temperature sensor located in the space portion with respect to the first orthogonal direction, and the pressed temperature sensor is brought into contact with the terminal.

An electrical connector includes a male electrical plug, a female socket, a housing, and a control system. The male electrical plug, which is supplied with power, is electrically connected to the female socket. The housing contains the male electrical plug, the female socket, and a control system. The control system includes a temperature sensor and a transceiver with the temperature sensor sensing a temperature at a location within the housing and the transceiver transmitting a signal representative of the temperature to an alarm device remotely located from the electrical connector. The electrical connector can include one or more switches that are remotely controllable by the alarm device to interrupt the electrical connection between the male plug and the female socket.

The present disclosure provides an electrical plug including a first temperature detection element and a second temperature detection element. When the processor determines that the temperature of the contact pins is greater than or equal to a temperature threshold according to a first detection signal outputted by the first temperature detection element and a second detection signal outputted by the second temperature detection element, the processor disables the electrical plug to transmit the input power to a load. When one of the temperature detection elements fails, the electrical plug determines whether the temperature of the electrical plug is greater than or equal to the temperature threshold according to the other one of the temperature detection elements. The electrical plug meets the redundant design required for functional safety to avoid unexpected hazards caused by the failure of a single temperature detection element. Therefore, the stability of the electrical plug is enhanced.

The present disclosure provides an electrical plug including a first temperature detection element and a second temperature detection element. When the processor determines that the temperature of the contact pins is greater than or equal to a temperature threshold according to a first detection signal outputted by the first temperature detection element and a second detection signal outputted by the second temperature detection element, the processor disables the electrical plug to transmit the input power to a load. When one of the temperature detection elements fails, the electrical plug determines whether the temperature of the electrical plug is greater than or equal to the temperature threshold according to the other one of the temperature detection elements. The electrical plug meets the redundant design required for functional safety to avoid unexpected hazards caused by the failure of a single temperature detection element. Therefore, the stability of the electrical plug is enhanced.

An electrical power connector includes a connector housing having a receptacle receiving an elongated DC power distribution busbar, a first spring contact element arranged at a first side of the receptacle and pressed with a contact area to a first surface of the elongated DC power distribution busbar, and a second spring contact element pressed to a second surface of the elongated DC power distribution busbar opposite the first surface. The second spring contact element is arranged at a second side of the receptacle opposite to the first side. The power connector includes a temperature sensing device arranged inside the connector housing and monitoring a temperature at the first spring contact element and/or the second spring contact element.

A thermal protection plug, provides a temperature sensor I, which is directly contact with the neutral wire terminal, so as the heat transferring from neutral wire terminal to the temperature sensor keeps prompt and improve the response delay to cut-off the power switch. And because the negative pole of DC is collinear with the neutral wire terminal, it means that the temperature sensor I can use a low voltage isolation sensor and it is safer even though the breakdown between the shell and the pins of the temperature sensor I.

A temperature-sensitive battery connector is disclosed. The connector can include a connector body and at least one conductor mounted to the connector body and configured to convey a current signal used to measure voltage from a battery pack or battery cell to a battery management system (BMS). The connector can include a thermal switching device mounted to the connector body and thermally coupled to a terminal of a battery pack or a battery cell. The thermal switching device can be configured to provide an overtemperature signal to the BMS by changing or interrupting a current conducted by at least one conductor when a temperature of the battery pack or battery cell exceeds a threshold temperature.

Methods and devices are provided for prompting information. The method includes: temperature in a smart socket is acquired; the temperature in the smart socket is compared with a preset temperature threshold value, and it is determined whether power of electric equipment connected with the smart socket is higher than an upper limit of an acceptable power range of the smart socket according to a comparison result; when the power of the electric equipment is determined to be higher than the upper limit of the acceptable power range of the smart socket, alarming information indicating that the power of the electric equipment is excessively high is generated; and the alarming information is pushed to a mobile terminal bound with the smart socket.