Devices and methods for detecting and reporting a battery tamper event with regard to an intrinsically-safe or explosion-proof device while the device is located in a hazardous environment. The device may include a location sensor for determining that the device is in a hazardous location. While in the hazardous location, the device may detect an open enclosure event using a sensor and, if so, it may monitor for detection of a battery tampering event. The battery tampering event may include battery replacement or battery charging. The battery tamper event may be reported to a remote server over a wireless channel when it occurs.

A screw fixing portion of an electronic apparatus includes a screw, a screw hole formed in a bottom cover to insert the screw therethrough, a stud provided on a top cover to be threaded with the screw, a substrate hole through which the screw is inserted at a point interposed between the bottom cover and the stud at a main substrate, a conductive sponge interposed between the bottom cover and the main substrate and provided around the screw, and a contact pair which is arranged opposite to each other so as to surround the substrate hole on the surface of the main substrate and contacts and conducts with the conductive sponge by fastening the screw.

A screw fixing portion of an electronic apparatus includes a screw, a screw hole formed in a bottom cover to insert the screw therethrough, a stud provided on a top cover to be threaded with the screw, a substrate hole through which the screw is inserted at a point interposed between the bottom cover and the stud at a main substrate, a conductive sponge interposed between the bottom cover and the main substrate and provided around the screw, and a contact pair which is arranged opposite to each other so as to surround the substrate hole on the surface of the main substrate and contacts and conducts with the conductive sponge by fastening the screw.

A housing for an electrical or electronic device is described, with a first housing part made of metal and a second housing part made of metal. The first housing part has a groove that contains a sealant, and in which one or a plurality of ribs of the second housing part engage. In accordance with this disclosure, provision is made for the rib or ribs to be designed as crimping ribs.

A housing for an electrical or electronic device is described, with a first housing part made of metal and a second housing part made of metal. The first housing part has a groove that contains a sealant, and in which one or a plurality of ribs of the second housing part engage. In accordance with this disclosure, provision is made for the rib or ribs to be designed as crimping ribs.

A ventilator comprises a main housing, a display unit having a display and a display rear wall, a display housing which is formed shell-like having a shell opening for inserting the display unit; and a display holder, which mechanically couples the display housing with the main housing. The display housing has a reinforcing structure connected to an inner wall of the display housing in its interior. The reinforcing structure comprises multiple screw connections arranged in a particular way.

A ventilator comprises a main housing, a display unit having a display and a display rear wall, a display housing which is formed shell-like having a shell opening for inserting the display unit; and a display holder, which mechanically couples the display housing with the main housing. The display housing has a reinforcing structure connected to an inner wall of the display housing in its interior. The reinforcing structure comprises multiple screw connections arranged in a particular way.

The disclosure relates to a housing of an electrical device for converting electrical power, including a main body and a cover. The cover closes the main body to define a self-contained interior space, wherein electrical and electronic components of the electrical device are arranged in the interior space of the housing. The cover is connected to the main body via a detachable securing structure, which may be arranged in the geometrical center of the cover. An electrical device has a housing of this type.

The disclosure relates to a housing of an electrical device for converting electrical power, including a main body and a cover. The cover closes the main body to define a self-contained interior space, wherein electrical and electronic components of the electrical device are arranged in the interior space of the housing. The cover is connected to the main body via a detachable securing structure, which may be arranged in the geometrical center of the cover. An electrical device has a housing of this type.

The disclosure provides a power supply including a first cover, a circuit board, and a second cover. The first cover has four first assembly holes, the circuit board is locked to the first assembly holes of the first cover, the second cover is closed with the first cover, and the circuit board is located in a space formed by the first cover and the second cover.