An electric cabinet includes a cabinet body, a ventilation cover, a top cover, and a baffle; the ventilation cover is disposed at the top of the cabinet body, and a ventilation hole is formed in the ventilation cover; the top cover is disposed above the ventilation cover and forms an air duct with one end open with the ventilation cover; and the baffle covers an outlet of the air duct, an upper end of the baffle is connected with the top cover, and the baffle is a shutter with the openings facing downward or a fender with a ventilation opening.

A member of the present invention is to be placed to cover a ventilation hole in order to allow passage of gas between an outside and an inside of a housing through the ventilation hole of the housing and prevent dust and/or a liquid from entering the inside from the outside through the ventilation hole. The member of the present invention includes a porous membrane having air permeability in a thickness direction and a provisional protective film joined to the porous membrane to cover the porous membrane from the outside side. The provisional protective film is air-impermeable in a thickness direction or has lower air permeability in the thickness direction than the air permeability of the porous membrane. The provisional protective film and the porous membrane are joined to each other in such a manner that the provisional protective film is removable from the porous membrane.

The electronic cabinet for enclosing electronic components generally has a housing having a base and a cover being connected to one another a plurality of lateral walls, one of the plurality of lateral walls having a first opening; a lateral perforated plate being mounted to the housing and extending over the first opening, the lateral perforated plate having a plurality of perforations; and a protector plate being mounted to the housing and extending over the lateral perforated plate to cover the plurality of perforations of the lateral perforated plate, the protector plate defining at least one air inlet between the protector plate and the lateral perforated plate.

The disclosure relates to the technical field of an electronic device, and provides a case and an electronic device. The case includes: a case body, which has a plurality of case sides, a cavity enclosed by the case sides and configured to accommodate the electronic device; a plurality of vents, which are disposed on at least part of the case sides and configured to ventilate between the case cavity and an external space; and a water retaining mechanism, which is on the inner wall of the case body and positioned at the vents.

A containing device equipped with: a casing formed in a substantially polyhedral shape, the casing having six substantially quadrilateral faces facing mutually different directions; and a containing part formed in the casing, the containing part containing a contained object so as to be insertable/removable. An opening continuous with the containing part, or a peripheral edge part of an opening continuous with the containing part, is disposed at a position corresponding to a first side, which is one of a plurality of sides constituting a polyhedron that corresponds to the casing.

An example computing device may include a housing having an outer panel, the outer panel comprising a first array of openings through the outer panel, an inner panel opposite the outer panel, the inner panel comprising a second array of openings and a third array of openings different than the second array of openings and an actuator to move the inner panel relative to the outer panel between (1) a first position in which the second array of openings are at least partially aligned with the first array of openings and the third array of openings are out of alignment with the first array of openings, and (2) a second position in which the third array of openings are at least partially aligned with the first array of openings and the second array of openings are out of alignment with the first array of openings.

An electronic device can include a housing defining an aperture, a membrane extending across the aperture, and a non-metallic woven support mesh disposed parallel to the flexible membrane and extending across the aperture. In at least one example, the membrane is acoustically transparent and the membrane is air permeable and water impermeable. In addition, the support mesh can be less flexible than the membrane such that the support mesh structurally supports the membrane.

A ventilation arrangement has a ventilation channel with a mouth opening and a first shielding hood shielding the mouth opening. The ventilation channel widens and/or narrows in cross section towards the mouth opening. The mouth opening is encompassed by the first shielding hood, leaving free a gap.

A ventilation and heat dissipation apparatus and an electromechanical device is provided. The apparatus includes: a main frame configured to connect to a device to be ventilated and cooled, and a ventilation and heat dissipation assembly located inside the main frame. The ventilation and heat dissipation assembly includes a waterproof unit, an external ventilation unit, and an internal ventilation unit. The waterproof unit is located between the external ventilation unit and the internal ventilation unit, and the external ventilation unit and the internal ventilation unit are arranged in a staggered manner. A bottom of the waterproof unit is provided with a drainage hole. External rainwater is prevented from entering the device, outside air enters the main frame through the external ventilation unit, and heat generated during operation of the device enters the main frame through the internal ventilation unit, for heat exchange.

A waterproof electronic device including a body, a one-way valve, and a cover is provided. The body has a first hole, which penetrates the body and communicates with an external environment, and a chamber. The one-way valve disposed on an inner surface of the body communicates with the first hole. The one-way valve has a main runner, multiple shunt runners, and multiple stopper blocks. Each stopper block is located between the main runner and a corresponding shunt runner. The cover disposed on the one-way valve has a second hole communicated with the one-way valve and the chamber. When a fluid enters the one-way valve from the second hole, the fluid is discharged from the body through the first hole. When the fluid enters the one-way valve from the first hole, the fluid generates a resistance in the one-way valve.