摘要:
According to an aspect of an embodiment, a wiring connection apparatus comprises a tray including a plurality of wiring connection members for connecting a plurality of wiring and a tray holder body, which holds the tray, wherein the tray is rotatably provided in the tray holder body, and a wiring introduction opening for introducing the plurality of wiring into the tray is formed in proximity to an axis of rotation of the tray.
摘要:
According to an aspect of an embodiment, a wiring connection apparatus comprises a tray including a plurality of wiring connection members for connecting a plurality of wiring and a tray holder body, which holds the tray, wherein the tray is rotatably provided in the tray holder body, and a wiring introduction opening for introducing the plurality of wiring into the tray is formed in proximity to an axis of rotation of the tray.
摘要:
A communication apparatus including a metallic shelf having a pair of side plates, a back wiring board mounted in the shelf on the back side thereof and having a plurality of first connectors and a solid ground pattern, and upper and lower guide plates mounted in the shelf, each guide plate having a plurality of guide rails and a plurality of vent holes. A first shield board having numerous openings is mounted on the upper guide plate, and a second shield board having numerous openings is mounted on the lower guide plate. A plurality of plug-in units are mounted in the shelf so as to be inserted along the guide rails of the upper and lower guide plates.
摘要:
A telecommunications apparatus that has a substantially box-shaped subrack having a back wiring board mounting a connector and a plurality of shell-type plug-in units inserted in the subrack so that a connector of each of the plug-in units is connected to the connector of the subrack, further includes a flexible, electrically conductive seal member elastically deformedly disposed between a lateral surface of the plug-in unit inserted into the subrack and an interior portion of the subrack so as to enclose both the plug-in unit connector.
摘要:
A heat radiating apparatus for a semiconductor device, in which said semiconductor device mounted on a circuit board is cooled by a radiator. The radiator is provided with a stepped portion, and fixing spring hardware having slit grooves is provided with a notch engaging with the stepped portion, so that the end of radiator is brought into contact with the outer surface of the semiconductor device when the stepped portion of the radiator engages with the notch portion of the fixing spring hardware. The stepped portion of the radiator is constituted of two stages, and the notch of the fixing spring hardware is provided with two notch portions engaging with the two-stage stepped portions of the radiator, respectively, so that the larger-diameter portion of the two-stage stepped portions of the radiator engages with the farthermost portion of the notch. Further, a male threaded portion is installed near the end of the radiator so that the male threaded portion of the radiator is threadedly fixed to the farthermost portion of the notch of the fixing spring hardware.
摘要:
An outdoor installation type cabinet which accommodates electronic equipment has a number of thin tubes which form an outside air passage and outside air is allowed to flow in the outside air passage by operating an external fan. A heat exchanger which is spaced from each wall of the cabinet is provided at a midway portion of the outside air passage to perform heat exchange between the outside air flowing in the outside air passage and inside air present in the equipment accommodating portion. A circulating fan is installed in the equipment accommodating portion to circulate the inside air. A bimetal is mounted on each side wall of the cabinet to detect a temperature of each side wall and control operations of the external fan, the circulating fan, and an internal fan according to the temperature detected. If the temperature of one side wall is higher than the temperature of the opposite side wall under given temperature conditions, the operation of only the circulating fan on that one side wall is stopped in to thereby suppress the entry of heat of solar radiation through that one side wall into the cabinet body and simultaneously continue to cool the interior of the cabinet.
摘要:
A determining method includes: holding a cooled device in a container; detecting a temperature inside the container; detecting a temperature outside the container; facilitating a airflow through an air filter that allows air to flow therethrough between the container and a space outside the container; calculating a packing density of components of the cooled device; detecting a power consumption of the cooled device; detecting the number of revolutions of a fan that facilitates the flow of air through the air filter; and determining that the air filter is clogged when the power consumption is less than or equal to a power threshold value, the number of revolutions is within a specified range, and a difference between the temperature inside the container and the temperature outside the container exceeds a temperature threshold value that depends on the packing density and the power consumption.
摘要:
A heat transfer mechanism for dissipating heat from a heat generating body to a heat dissipating part, realizing both a high elasticity and a high thermal conductivity, comprised of a film-shaped heat conductor for transferring heat to the heat dissipating part and an elastic member for imparting elasticity to the film-shaped heat conductor, the film-shaped heat conductor being formed from metal foil-type flexible heat pipes or carbon-based thermal conductive sheets.
摘要:
The present invention relates to a fan unit used for forced air cooling, a motherboard with predetermined wiring formed as a wiring pattern, disposed on the rear face of an equipment, and an electronic equipment provided with the fan unit and the motherboard. It is an object of the present invention to reliably maintain appropriate forced air cooling at low cost. For this purpose, the fan unit of the present invention measures temperatures of predetermined places in parallel, processes each of combinations of these temperatures, outputs the processing result via lines whose number is equal to the number of the combinations, and maintains the revolving speed of fans at a value suitable for the processing result obtained via these lines.
摘要:
A lever member of a lever assisted insertion device engages with a front frame of a shelf before a fully inserted position of a substrate unit to form a leverage fulcrum on the front frame. A force that an operator applies to the lever member is transmitted to the substrate unit via a point of application with respect to the fulcrum, thereby inserting the substrate unit up to the fully inserted position. A buffering device abuts against the front frame of the shelf within a depth range of a front panel of the substrate unit before an operation start position at which the lever member engages with the front frame of the shelf, to absorb impact of the substrate unit at the time of insertion.