A folding metal back plate includes a first plate portion, a second plate portion, and a folding plate portion connected to the first plate portion and the second plate portion. The folding plate portion has two first folding areas respectively disposed close to the first plate portion and the second plate portion, and a second folding area formed between the two first folding areas. The first folding area has multiple rows of spaced first openings. The second folding area has multiple rows of spaced second openings. Each first folding area constitutes a first unfolding length. The second folding area constitutes a second unfolding length. The first unfolding length of the first folding area is 0.2 to 0.5 times the second unfolding length of the second folding area.

At least one first display module selected from display modules arranged in a matrix to form a display screen for displaying an image has a first screw hole into which a first screw is screwed with the first screw pressed against a second display module placed adjacent to the first display module in forming the display screen. The first display module has a through-hole. The second display module has a second screw hole into which a second screw is screwed after the second screw is put through the through-hole toward the second display module. The second screw includes a shank having an outer diameter smaller than an inner diameter of the through-hole and a head having an outer diameter greater than the inner diameter of the through-hole.

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.

In order to improve a housing, in particular for an electrotechnical apparatus, comprising at least two housing parts which each have a connecting face, said connecting faces, in a closed state of the housing, facing one another along a connecting section, it is proposed that at least one of the at least two housing parts, along the connecting section, has at least one integrated protective section, in particular for EMC shielding and/or for mechanical protection.

An improved ECU for a motor vehicle comprises a housing that includes a top portion and a bottom portion each with an associated gasket. A printed circuit board (PCB) is enclosed between the housing portions. The gaskets provide seals between the housing, portions and respective sides of the PCB and apply balanced forces to each side to minimize strain on the PCB. One or both gaskets may be electromagnetic compliance gaskets.

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 container that has a mechanical tolerance compensatory element includes a housing, an electronic assembly, a cover, and an attachment member. The housing defines an electronic assembly recess. The electronic assembly is disposed within the electronic assembly recess and contacts the housing. The cover is attached to the housing, has a center, and defines an attachment member portion, a slot, and a first projection. The slot is disposed between the attachment member portion and the center of the cover. The first projection extends into the electronic assembly recess and contacts the electronic assembly such that the electronic assembly is retained between the housing and the cover. The attachment member is disposed at the attachment member portion defined by the cover and attaches the cover to the housing.

The electric device has a first seal part, including, between a first case and a second case, a groove portion prepared at one side and a projection portion prepared at another side, where those portions are joined by sealing material; a second seal part, including, between the opening part of the first case and a peripheral part of the connector, a groove portion prepared at one side and a projection portion prepared at another side, where those portions are joined by the sealing material; and a third seal part, including, among the first case, the second case, and the peripheral part of the connector, a groove portion prepared at one side and a projection portion prepared at another side, as a combination, or a projection portion prepared at one side and a groove portion prepared at another side, as a combination, where those portions are joined by the sealing material.

The invention relates to an electric field device (10) with an ignition protection-type pressure-tight encapsulation for use in explosion-prone regions for controlling and/or regulating a valve unit of a process system, comprising a housing (12), in which a control unit (48) that comprises electronic components and is used as a monitoring, control, and/or regulating unit is arranged, said control unit (48) having a releasable communication connection to an operating unit (62). The housing (12) can be connected to a drive housing of the valve unit via a mechanical interface (42), and the housing has at least one connection feedthrough (44), via which at least one line can be connected that is connected to the control unit (48) via a connection interface (46). The invention is characterized in that the housing (12) is designed as a housing assembly with a modular structure, having a first module (16) which is formed together with the mechanical interface (42) to the drive housing and the connection feedthrough (44). The control unit (48) is secured in the first module (16) and has an interface to a control center, wherein the first module (16) can be mechanically connected to a cover element (20) selectively either directly or indirectly in a releasable manner, and the indirect connection of the first module (16) to the cover element (20) is produced with the interposition of a second module (18). The operating unit (62) is arranged in a stationary manner in the second module (16), and the second module (18) can be fixed in different angular orientations about a longitudinal axis of the electric field device relative to the first module (16).

An electronic device with a storage function is provided. The electronic device includes a main connection bolt and a housing. The housing includes a first housing member and a second housing member. The first housing member includes two hooks and a fastening portion. The second housing member includes two wedging portions and a fastening base. The hooks are wedged into the wedging portions to restrict the freedom of the first housing member to move relative to the second housing member in a first direction. The main connection bolt connects the fastening portion to the fastening base in a second direction to restrict the freedom of the first housing member to move relative to the second housing member in the first direction. The first direction is perpendicular to the second direction.