A detachable projection device, a sealing housing thereof, and a wearable apparatus are provided. The sealing housing includes a first cover, a second cover, a first waterproof and dustproof gasket having an enclosed loop-shape, and a transparent case. The first cover and the second cover respectively have two sealing edge portions corresponding in shape to each other. The second cover is detachably fastened to the first cover, and the first waterproof and dustproof gasket is gaplessly sandwiched between and abutted against the two sealing edge portions, so that the first cover, the second cover, and the first waterproof and dustproof gasket jointly define an accommodating space. The transparent case is connected to the second cover and has an insertion slot that is in spatial communication with an optical area of the accommodating space.

The present disclosure relates to a telecommunications enclosures that can be customizable to include a hinge. That is, a separate hinge may be utilized as an add-on feature for telecommunications enclosures. The hinge can be attached to at least two different sides of an enclosure or may not be utilized at all. Such a configuration allows for flexibility of a variety of designs for a telecommunications enclosure. The hinge can be mountable to interfaces of first and second housing pieces of an enclosure. The hinge can have rotational features and/or translational features for pivoting first and second housing pieces of an enclosure between first and second positions.

The invention relates to the electricity field, in particular to a novel charging pile connection box, comprising connection box, a connection hole arranged on outer wall of the connection box, a first mounting piece provided inside the connection box, a gasket provided outside the connection box, and a second mounting piece, a screw, the hole wall of the connection hole is provided with a notch, before preparing for connection, the user looses the screw with a screwdriver, disassembles the second mounting piece, the gasket and the first mounting piece in turn, and then disassembles the connection box and takes out the first mounting piece that falls inside the connection box.

Disclosed is a waterproof substrate, including: two mounting surfaces disposed facing away from each other; and at least one waterproof protrusion provided on at least one of the two mounting surfaces and including: a protrusion body connected with the mounting surface, and one end of the protrusion body away from the waterproof substrate includes a connecting end surface; and at least two waterproof ribs, and each of the waterproof ribs is provided on the connecting end surface respectively and is gradually inclined outwardly in a direction away from the connecting end surface respectively.

A wall plate system for an electrical device, including but not limited to indoor wall switches, includes a wall plate and a shield. The wall plate defines an aperture, and the wall plate is configured to receive a portion of an electrical device in the aperture. The shield extends at least partially through the aperture, and the shield is configured to form a seal between the wall plate and the electrical device.

A sealing structure includes: a case that stores an in-vehicle electronic component and has an opening; and a first cover member that covers the opening of the case. The case includes: an protrusion member that has a sealing surface protruded to surround the opening; and a rib that is protruded on an opposite side of the opening with the protrusion member interposed therebetween. The rib has a discharge surface that is connected to the sealing surface of the protrusion member. The first cover member has an extension member that extends along the rib. The discharge surface of the rib is located to be lower than the sealing surface of the protrusion member while the case is arranged with the opening facing upward, and the extension member of the first cover member extends to be lower than the discharge surface of the rib.

An electrical connection box is provided with a connector-attached board and a shield case that internally houses the connector-attached board. The connector-attached board is provided with a circuit board, a connector that is fixed to the circuit board and that engages with a mating connector, and an attachment that is attached to the connector. The shield case surrounds the circuit board and is provided with an upper short wall portion and a lower short wall portion that include a connector opening for facing the connector outside. The attachment is provided with a waterproof portion that covers the periphery of an engagement surface of the connector that faces the mating connector, and the waterproof portion is provided with a waterproof wall that covers the periphery of the connector and the mating connector.

A cabinet For electronic components, the cabinet comprising an outer wall, a closure, and an attachment structure, the cuter wall encapsulating an internal space and forming an opening, the closure being attached to the outer wall by the attachment structure, and the attachment structure allowing movement of the closure relative to the outer wall between an open position where the opening is uncovered and a closed position where the opening is covered by the closure. To enable automatic and fast opening of the cabinet in case of over pressure, e.g. caused by arching of electronic components in the cabinet, the cabinet Further comprises a magnet structure comprising at least one magnet arranged to hold the closure in the closed position and to release the closure in response to a pressure in the internal space.

An electromagnetic compatibility (EMC) housing having a first part (2) and a second part (3) for forming an enclosure when fitted together. The first and second parts (2, 3) include first and second interface surfaces (4, 5), respectively, for compressing a gasket (9) interposed between the interface surfaces (4, 5) when the first and second parts are fitted together. At least one of the first and second interface surfaces (4, 5) includes a plurality of undercut regions (7) for reducing compression of the gasket (9) in the region when the first and second parts (2, 3) are fitted together.

Provided is a Light Emitting Diode (LED) display device. The LED display device includes: a rectangle framework, including a frame, a first transverse beam and a second transverse beam arranged inside the frame at intervals, an adapter plate assembly, including a fixed plate mounted at a strip-like gap and an adapter plate detachably arranged on a rear side of the fixed plate, the fixed plate being provided with a lock, a display module, mounted on a front side of the rectangle framework through a magnetic attraction structure, a rear side of the display module being provided with a first strip-shaped lock hole, wherein, the lock includes a rotary shaft rotatably arranged on the fixed plate and a first lock tongue arranged on the rotary shaft, the first lock tongue is able to go through the first strip-shaped lock hole and has a first unlocking position corresponding to the first strip-shaped lock hole and a first locking position that is staggered with the first strip-shaped lock hole, and the adapter plate fits the display module through a connector in a plugging-in manner. The technical solution of the application effectively solves a problem that a display module in a related art falls due to separation from a box body.