Abstract: A cooling system having a enclosure, a plurality of disk drives stored in the enclosure, a first portion of the disk drives having housings with a first form factor and a second portion of the disk drives having housings with a second form factor smaller than the first form factor, and an air baffle system for directing a flow of air internal the enclosure over portions of the housing of the second portion of the disk drives while at the same time creating a wall to maintain the flow of air over neighboring ones of the first portion of the disk drives (the external flow).

Abstract: An electronic device and a method for controlling heat reflux of the electronic device include setting a speed decrease value and standard temperatures for each of the first device and the second device. The control method further includes detecting a working temperature of the second device using a temperature sensor of the electronic device, if a speed of the second fan is at a full speed. The control method further includes reducing a speed of the first fan according to the speed decrease value, if the speed of the second fan is at the full speed and the detected working temperature exceeds the standard temperature of the second device.

Abstract: Electronic components of an energy meter are mounted in an encapsulated compartment within a sealed outer enclosure of the meter. The encapsulated compartment is advantageously positioned to form air channels between the encapsulated compartment and the sealed outer enclosure to deliver thermal air circulation there-between to promote sufficient heat transfer through an outer skin of the sealed outer enclosure for maintaining acceptable thermal conditions for the encapsulated electronic components.

Abstract: The present disclosure is generally directed to efficiently cooling converter and inverter components of a drive system. Present techniques relate to a motor drive duct system that facilitates efficient cooling and access to motor drive components. The motor drive duct system includes duct channel paths that are parallel and adjacent to one another. The duct system includes a converter section that houses a converter heat sink, an inverter section that houses an inverter heat sink, an exhaust section, and an air inlet section. The converter section and the inverter section are configured to be attached and detached from each other at end sections that are angled to receive one another. Further, the inverter section, converter section, and air inlet section are configured to roll into and out of a cabinet, which facilitates access to field wiring.

Abstract: The present invention relates generally to tuning the flow of cooling air across converter and inverter heat sinks in a motor drive system. More specifically, present techniques relate to motor drive duct systems having parallel cooling air duct channels dedicated to providing cooling air for a converter heat sink and an inverter heat sink, respectively. In particular, a first duct channel through an inverter duct and a converter duct is dedicated to providing cooling air to the converter heat sink without cooling the inverter heat sink, whereas a second duct channel through the inverter duct and the converter duct is dedicated to providing cooling air to the inverter heat sink without cooling the converter heat sink.

Abstract: The subject invention is directed to an improved modular multilevel raised floor electro-mechanical distribution system for installation in building structures including, but not limited to, data centers and similar rooms having high heat loads requiring usually dedicated cooling systems and usually having extensive data cabling and wiring. In addition to a walking and equipment support surface, the invention provides dedicated levels, isolated from one another and positioned under the walking surface, for distribution of electrical services, including data, on the one hand, and conditioned air, on the other.

Abstract: A switchgear case is partitioned into a high voltage bus bar chamber, which contains bus bars and cable heads, a high voltage device chamber containing circuit breakers and operation mechanisms and a low voltage control chamber containing a relay and measurement devices, etc. A rear wall of the case has a first suction port disposed at a lower part thereof, wherein the high voltage bus bar chamber, high voltage device chamber and the low voltage control chamber are communicated and air passing through the chambers is discharged from a first discharging port of the casing. The bus bars electrically connecting the high voltage devices in the high voltage device chamber and connecting bars connecting the adjoining bus bars and the cable heads are covered with solid insulators for solid-insulation.

Abstract: The invention relates to an electrical cabinet (1) for receiving electrical and/or electronic and/or optoelectronic devices, in particular low-current distribution devices, which is particularly suited for installation outdoors, comprising an inner cabin (2) and an outer cabin (3), a first cooling channel (12) and a second cooling channel (23) being configured to be bordering externally on boundary surfaces (6) of the inner cabin (2) and separated from each other.

Abstract: An electronic device having a piezoelectric pump. The electronic device includes: an audio input section; an audio recording section recording input sound from the audio input section; a piezoelectric pump cooling air by a piezoelectric element; a drive circuit driving the piezoelectric element; and a control circuit monitoring and controlling operation of the audio input section, the audio recording section, and the drive circuit, wherein when an operation mode being monitored is an audio recording mode, in which the input sound is used for recording by the audio recording section, the control circuit controls the drive circuit to decrease the amount of air flow exhausted outside from the piezoelectric pump, and when the operation mode being monitored is another mode without audio recording, the control circuit maintains the amount of the air flow.

Abstract: An electricity transformer station having a foundation and a housing on top of the foundation, the housing comprising walls and a roof. The housing comprises a plurality of identical modules assembled in a row along a longitudinal axis of the housing, each of the modules having two side walls and a roof section connecting the side walls.

Abstract: A system having: a midplane having air flow channels therein; a disk drive mounted to a first side of the midplane; and a temperature sensors mounted to the midplane. The system includes a pair of electrical chassis connected to a second side of the midplane. A first one of the chassis has therein: a fan; and a fan controller for controlling speed of the fan in response to a temperature control signal. A second one of the chassis has therein: a microprocessor for: detecting temperature signals produced by the temperature sensors; comparing differences between the detected temperature signals; and selecting one of the detected temperature control signal from the compared differences as the temperature control signal. A faulty one of the temperature sensors is detected by: selecting one of the detected temperature control signal as the faulty one of the plurality of temperature sensors from the compared differences.

Abstract: An electrical enclosure assembly is provided including a first enclosure and a second enclosure disposed within the first enclosure. The first enclosure having a plurality of walls defining an interior and an exterior with one of the walls including a first number of one way vents. The interior being substantially sealed from the exterior except at the first number of one way vents. The second enclosure having a plurality of walls defining an interior separate from the interior of the first enclosure. One of the plurality of walls of the second enclosure including a second number of one way vents. The interior of the second enclosure being substantially sealed from the interior of the first enclosure except at the second number of one way vents.

Abstract: An arc-resistant enclosure for electrical switchgear which includes solid front and back walls, a pair of solid side walls joined to the front and back walls, a ventilated roof joined to the side walls and the front and back walls, and a ventilated base joined to the side walls and the front and back walls. Internal partitions divide the space enclosed by the front, back, side, top and bottom walls into multiple compartments for housing different types of components. The ventilated base forms air-intake ports for admitting ambient air into a plurality of the compartments, and the ventilated roof forms air-exhaust ports for allowing air to be exhausted from the compartments. As air inside the enclosure is heated by the switchgear, the hot air rises through the switchgear compartments and is exhausted through the top air-exhaust ports, and replacement ambient air is drawn into the bottoms of the compartments through the air-intake ports.

Abstract: Electronic equipment installed outdoors to house an internal unit is provided, meeting the waterproof standard and having an easily replaceable structure of the internal unit. The electronic equipment has an enclosure having a cover and a case with an opening and an air vent, and an internal unit in which an electronic component is mounted. The internal unit has a heat sink and radiation fins for releasing heat generated by the electronic component. The fins are inserted into the opening. The heat sink has a draining portion formed below the fins in a direction perpendicular to an extending direction of the radiation fins, a groove for waterproofing around the fins except an upper portion thereof, and two protrusions for fitting above the fins. The case has a rib for waterproofing around the opening except an upper portion thereof, and two holes for fitting above the opening.

Abstract: A cooling unit (80) comprising at least one cooling coil, at least one fan (86) for circulating air through said at least one cooling coil, and a housing containing said at least one cooling coil and fan, wherein said housing is sized to fit within an IT server rack and is arranged for attachment to said rack. This allows a cooling unit to be fitted to an IT rack conforming to EIA 310 D specifications. Such racks, in particular the 19? configuration, are commonly found in datacentres and computer rooms and therefore the provision of a cooling unit which can be inserted into such a rack allows an existing datacentre to quickly be adapted to take advantage of the latest in computer room cooling methodology. The cooling unit (80) can be mounted in a semi-recessed configuration with the at least one fan projecting beyond the rack boundary to reduce power consumption.

Abstract: An electronic module. The electronic module includes a chassis, a plurality of capacitors, and a heat sink. The chassis includes a first end and a second end. The first end is opposite the second end. The chassis also includes a first side, a second side, a third side, and a fourth side. The second side is opposite the first side. The third side is connected to at least one of the first and second sides. The fourth side is connected to at least one of the first and second sides, and is opposite the third side. The chassis is fabricated from a material which stops component debris from passing through the sides of the chassis. The capacitors are positioned within the chassis. The heat sink is positioned between the capacitors and the second end.

Abstract: According to an electron emitting element of the present invention, an electron acceleration layer sandwiched between an electrode substrate and a thin-film electrode contains (i) insulating fine particles and (ii) at least one of (a) conductive fine particles having an average particle diameter smaller than an average particle diameter of the insulating fine particles and (b) a basic dispersant. The electron acceleration layer has a surface roughness of 0.2 ?m or less in centerline average roughness (Ra). The thin-film electrode has a film thickness of 100 nm or less. As such, according to the electron emitting element of the present invention, it is possible to reduce the thickness of the thin-film electrode to an appropriate thickness. Accordingly, it is possible to increase electron emission.

Abstract: A cooking appliance for cooking a foodstuff over a period of time including a shell having a heating cavity and a heating element to heat the heating cavity. A container is removably positionable within the heating cavity and includes a food cavity for receiving the foodstuff. A temperature probe is removably insertable into the foodstuff and a controller is mounted to the shell. The controller controls operation of the cooking appliance in a probe mode wherein the temperature probe is inserted into the foodstuff and transmits foodstuff temperatures to the controller for controlling the heating of the foodstuff, a program mode wherein the controller actuates the heating element to heat the container at a temperature for a selected amount of time and subsequently at a lower temperature and a manual mode wherein the controller actuates the heating element to heat the container at a selected temperature.

Abstract: A bulk power assembly includes a bulk power distribution (BPD) subassembly and a bulk power controller and hub (BPCH) subassembly coupled to the BPD subassembly. The BPD assembly is configured to provide bulk DC power from both AC input power and DC input power. The BPD subassembly is configured to distribute the DC bulk power. The BPCH subassembly is configured to monitor and control the BPD assembly.

Abstract: An electrical enclosure assembly comprises an enclosure having walls defining an interior space for housing electrical components and having a front flange surrounding a front opening. A cover is hingedly mounted to the enclosure for selectively closing the front opening. The cover comprises a front wall larger than the front opening and a rearwardly extending peripheral rim. Cooling structure is integrally formed on an interior surface of the cover proximate the peripheral rim. The cooling structure comprises a plurality of spaced apart cooling ribs each having a shoulder engaging the enclosure front flange when the cover is in a closed position to provide an air flow path between the interior space and outside of the enclosure through spaces between the cooling ribs.

Abstract: A cooling plant for cooling one or more switch cabinets. According to this invention, a large heat exchanger or several small heat exchangers operating in parallel are housed in a heat exchanger cabinet, wherein an inner space of the heat exchanger cabinet is coupled to a central air-conditioning device supplying cold air to a double bottom by an air inlet in the cabinet bottom and an air outlet of the double bottom. The cold air fed to the heat exchanger cabinet goes through the large heat exchanger or the small heat exchangers and cools the coolant flowing therein. The water supply and the water return of the large heat exchanger or the small heat exchangers are connected to the feed line and the return line of the switch cabinets that are to be cooled. This simple construction makes it possible to easily adapt the efficiency of cooling and the capacity to the variable number of switch cabinets.

Abstract: A venting system is described for use with electrical enclosures in which hot gasses may be generated by certain types of fault. The venting assembly may be mounted to a surface of the enclosure, such as adjacent to an aperture formed in the enclosure door. The vent assembly includes a series of louvers that divert all gasses flowing from the enclosure and provide no direct path for gas. The vent assembly thus provides unimpeded flow of hot gasses during a fault event to divert and cool the gasses before exiting the enclosure. The vent assembly may be configured as a cartridge-type insert mounted either inside or outside the enclosure.

Abstract: A fan noise control apparatus is provided to facilitate the reduction of noise. According to the preferred embodiments, an acoustically transparent portion is provided to permit noise from one source to pass through to interact and cancel with another noise.

Abstract: A temperature-controlled solar power inverter is described herein. The solar power inverter includes multiple components (for example, a power transistor, a control board, or a heat sink). The temperature of a component may rise due to heat generated by the component or heat absorbed from other components. The solar power inverter also includes a temperature sensor configured to measure a temperature at a location proximate to the component and a cooling device configured to cool the component. The solar power inverter also includes a controller coupled to the temperature sensor and the cooling device. The controller is programmed to receive the temperature from the temperature sensor and control the cooling device based upon the temperature and a temperature setpoint of the component. The temperature setpoint is based upon 1) a component initial temperature, 2) a temperature excursion limit of the component, and 3) an absolute temperature limit of the component.

Abstract: A cooling unit for integrating into a housing, especially a control box, including an assembly plate which is embodied to receive electrical components and has at least one cooling channel through which a coolant flows or is to flow. This invention provides the cooling unit with a compact structure and a high cooling performance. Thus, an air cooling unit with a fan is provided on the assembly plate for cooling warm air accumulated in the housing due to dissipated heat. The fan is used to guide the warm air along the assembly plate for cooling purposes.

Abstract: A device associates an enclosing capsule in which will be fitted electronic equipment requiring dehumidification, and a medium-to-low voltage converter to recharge electronic equipment. Heat energy released by the coil in the converter will lead to a free thermal exchange of air between the inside and the outside of the capsule, produced by the natural convection from vent holes located in the lower part of the device through which air will be sucked from the outside and vent holes located in the upper part of the device through which warm air thus produced will escape. The circulation of unsaturated warm air around the electronic equipment has the effect of removing the water molecules on the components by saturating the ambient air in the confinement zone, this air being evacuated through vent holes located in the upper part of the device.

Abstract: This rack (1) houses rackable electronic gear modules (2, 3) and has cooling by natural convection thanks to ventilation orifices (20, 21) provided in its bottom (10) and top (11) walls and forced air cooling thanks to internal air distribution ramps (30) fed with air under pressure through the intermediary of a distribution box (31) connected to a forced air circulation duct (37). The use of internal distribution ramps for the forced air makes it possible to produce a pulsed air circulation providing only a slight obstacle to the air circulation obtained by natural convection. Compared to usual configurations, this makes it possible to lower the operating temperature reached by the equipment in the event of loss of the forced ventilation.

Abstract: A heat sink (1) for power module is capable of mounting a power device (101) on at least a surface of the heat sink. The heat sink includes a refrigerant passage (1d) in which cooling medium that dissipates heat generated by the power device (101) flows and a corrugated fin body (1a) arranged in the refrigerant passage (1d). The corrugated fin body (1a) has crests (21b) and troughs (21c) that extend in the flow direction of the cooling medium, and side walls (21a) each of which connects the corresponding one of the crests (21b) with the adjacent one of the troughs (21c). Each adjacent pair of the side walls (21a) and the corresponding one of the crests (21b) or the corresponding one of the troughs (21c) arranged between the adjacent side walls (21a) form a fin (21). Each of the side walls (21a) has a louver (31) that operates to, at least, rotate the cooling medium flowing in the associated fin (21). The heat sink (1) thus has a further improved heat dissipating performance.

Abstract: A power supply is mounted in a case for a computer and has a shell, a blower assembly and multiple electrical components. The shell has a rear surface, a heat sink chamber, an electrical component chamber, an air inlet and an air outlet. The chambers have front end communicating with each other. The air inlet and the air outlet are formed through the rear surface of the shell. The blower assembly is mounted in the shell and is adjacent to the rear surface of the shell. The electrical components are mounted in the electrical component chamber and generate heat when the computer operates. The heat-dissipating method of the power supply is to extract air from outside the computer case into the shell to dissipate the heat generated by the electrical components. Using air at room temperature from outside the case is much more efficient to cool down the power supply.

Abstract: A cooking appliance for cooking a foodstuff over a period of time including a shell having a heating cavity and a heating element to heat the heating cavity. A container is removably positionable within the heating cavity and includes a food cavity for receiving the foodstuff. A temperature probe is removably insertable into the foodstuff and a controller is mounted to the shell. The controller controls operation of the cooking appliance in a probe mode wherein the temperature probe is inserted into the foodstuff and transmits foodstuff temperatures to the controller for controlling the heating of the foodstuff, a program mode wherein the controller actuates the heating element to heat the container at a temperature for a selected amount of time and subsequently at a lower temperature and a manual mode wherein the controller actuates the heating element to heat the container at a selected temperature.

Abstract: A system and method are provided for cooling exhaust from a power center, such as in the event of an arc fault. In one embodiment, a system is provided that includes a power center having an enclosure, an exhaust duct coupled to the enclosure, and a phase change material disposed in the enclosure, the exhaust duct, or both, wherein the phase change material is configured to rapidly cool exhaust in response to a high temperature in the enclosure. A method is provided that includes cooling an exhaust at a high temperature from a power center by changing phase of a phase change material from a solid to a vapor. Another method is provided that includes providing a phase change material configured to cool an exhaust at a high temperature from a power center by changing phase from a solid to a vapor.

Abstract: A busbar assembly is configured such that the power devices (e.g., IGBT die) and diodes are directly mounted to the busbars. The busbars act as heat sinks, and may be cooled using micro channels, micropin fins, direct cooling, or any other heat transfer method. One assembly includes a plurality of busbars, a plurality of power semiconductor devices bonded to the plurality of busbars, and an integrated cooling system within one or more of the busbars.

Abstract: A load control device is adapted to be installed in an electrical wallbox having a barrier. The load control device comprises a split enclosure having first and second enclosure portions spaced apart so as to define a gap, such that the gap is adapted to receive the barrier of the electrical wallbox when the load control device is installed in the wallbox. First and second connectors are provided in first and second openings of the first and second enclosure portions, respectively. The load control device is operable to receive a first control signal at the first connector and to generate a second control signal, which is provided at the second connector, in response to the first control signal.

Abstract: A hybrid thermal management system for providing simultaneous spray cooling and dry cooling for a plurality of cards. The hybrid thermal management system includes a chassis having a global spray chamber, a hybrid chamber, a first opening within a rear portion of the chassis extending into the global spray chamber, a second opening within the rear portion of the chassis extending into the hybrid chamber, and a backplane secured and sealed to the rear portion of the chassis. A dry chamber may be attached to the chassis for air cooling electrical components. The cards within the global spray chamber are typically high heat flux components with increased cooling requirements and the cards in the hybrid chamber are comprised of dry/air cooling and zone cooling components.

Abstract: The difference between internal processes of a power converting apparatus may bring about a heat difference in the apparatus. In the cooling process, it is presumed that the temperature change of the inverter or converter module may be made so great that the power converting apparatus may be less reliable. In order to overcome this shortcoming, the temperature of the internal module is measured and a cooling control of a cooling fan or the like is carried out on the measured result. This cooling control of the cooling fan causes the life of a switching element of the inverter or converter to be longer.

Abstract: The present invention pertains to a switchgear cabinet for accommodating electronic plug-in modules with an interior in which the heat-generating plug-in modules can be inserted one on top of another, a roof area arranged above the interior and a base arranged underneath the interior and that forms a base area. The switchgear cabinet furthermore comprises an air channel that is arranged to the side of the interior and connects the roof area to the base area. A closed cooling circuit within the switchgear cabinet serves for carrying off the heat generated by the plug-in modules. A fan arranged in the roof area takes in air from the interior and blows this air into the air channel. The heated air from the air channel flows around a heat exchanger arranged in the base in such a way that the air is cooled and the thereby produced cooling air is admitted into the interior from below and flows through this interior vertically upwards.

Abstract: A dry-wet thermal management system for providing simultaneous spray cooling and dry cooling for a plurality of cards. The dry-wet thermal management system includes a chassis having a dry chamber and a spray chamber, a first opening within a rear portion of the chassis extending into the spray chamber, a second opening within the rear portion of the chassis extending into the dry chamber, and a main backplane secured and sealed to the rear portion of the chassis. Electronic cards may be electrically coupled within sockets of the main backplane within both the dry chamber and the spray chamber. The cards within the spray chamber are typically high heat flux components with increased cooling requirements and the cards within the dry chamber are typically low heat flux components with reduced cooling requirements. A spray cool system is within the spray chamber and a dry cool system is within the dry chamber.

Abstract: A cooling unit for integrating into a housing, especially a control box, including an assembly plate which is embodied to receive electrical components and has at least one cooling channel through which a coolant flows or is to flow. This invention provides the cooling unit with a compact structure and a high cooling performance. Thus, an air cooling unit with a fan is provided on the assembly plate for cooling warm air accumulated in the housing due to dissipated heat. The fan is used to guide the warm air along the assembly plate for cooling purposes.

Abstract: A power-supplying device includes a casing, a power-supplying unit, and a fan. The casing has a set of exhausting holes. An arrangement hole forms on an upper surface of the casing. The power-supplying unit is received in the casing. The fan corresponds to the arrangement hole and is obliquely disposed in the casing. The power-supplying device draws external hot air into the casing. The fan make the hot air flow in the power-supplying device more smoothly, thereby solving the problem of circulation of hot air in the casing.

Abstract: A load control device is operable to receive a first control signal having a first magnitude and to generate a second control signal having a second magnitude. The load control device is adapted to be installed in an electrical wallbox having a barrier. The load control device comprises a split enclosure having first and second enclosure portions and a gap between the two portions. A first connector is provided in an opening of the first portion for receipt of the first control signal and a second connector is provided in an opening of the second portion for providing the second control signal. The gap of the split enclosure receives the barrier when the load control device is installed in the electrical wallbox, such that the first control signal is electrically isolated from the second control signal. Accordingly, the load control device meets the requirements of the National Electrical Code when installed in the electrical wallbox.

Abstract: A system and method for producing a family of power modules having a common footprint that enables the customer to flexibly choose a power module size without incurring the costs of a relayout of a system design. In one embodiment, the power modules are directed to a point-of-load power controllers.

Abstract: In a power supply unit disposed below a floor behind a seat, battery modules are disposed in a lower position, and a DC/DC converter and a motor driving inverter are disposed side by side in a vehicle width direction above the battery modules. Thus, cooling air flowing from the front side to the rear side of a vehicle body is divided into upper and lower portions to cool in parallel the DC/DC converter 41 and the motor driving inverter on the upper side and the battery modules on the lower side. Thus, it is possible to simplify a passage of the cooling air to reduce the size of the entire power supply unit, and improve mountability of the power supply unit on the vehicle body. Also, it is possible to apply cooling air at low temperature before heat exchange to all the battery module, the DC/DC converter, and the motor driving inverter, thereby enhancing cooling effect.

Abstract: A heat sink is for an integrally fused low-voltage power air circuit breaker including a line terminal and electrical bus work coupled to a current limiter. The line terminal, electrical bus work, and current limiter contribute to the formation of a thermal dam. The heat sink includes a heat exchanger structured to be coupled to the line terminal at or about the current limiter in order to expel heat from the thermal dam. The heat exchanger comprises at least one conductive member having a first end, a second end, and a plurality of bends therebetween. The heat exchanger includes heat reduction features, such as, for example, two conductive members having a number of air gaps therebetween to facilitate heat convection, a dark coating to expel heat, materials having a high thermal conductivity, and surface-enlarging mechanisms such as fins, flanges and apertures.

Abstract: A case having a ventilation system for ventilating a heat generation source disposed in the case, includes: a first sub-case and a second sub-case which is joined to the first sub-case; a first gap provided in a surface of a joining section between the first sub-case and the second sub-case; and at least one ventilation section to discharge air in the case to the outside provided in the first gap.

Abstract: A waterproof housing of a junction box has at least one vent piece penetrating through a wall of the housing for ventilation of the junction box. The vent piece has an inner wall formed with a baffle projection to prevent invasion of a splashing water. The waterproof housing has a plurality of the vent pieces. The waterproof housing also has a drain hole provided in the housing. The vent piece has an inside opening positioned higher than the drain hole when the junction box is mounted at a usage position. The baffle projection is positioned at an axial inner end portion of the vent piece. The vent piece has a central axis inclined relative to an invasion direction of an expected splashing water.

Abstract: An arc resistant switchgear assembly is provided having a front wall, a rear wall, a bottom surface, an upper surface, a first side wall, and a second side wall opposed to the first side wall and spaced a first distance from the first side wall, with each of the first and second side walls having an upper portion and a lower portion, and with each of the first and second side walls having an inner and an outer surface, with at least the lower portion of both the first side wall and the second side wall having at least one blow-off panel detachably secured thereto by fastening means. Each of the panels is detachably secured to the outer surface of the side wall to which each is secured. The assembly has a vertical plenum formed directly adjacent both the first and the second side walls, with the outer surface of each of the first and second side walls defining an inner side wall of each of the vertical plenums.

Abstract: A dry-wet thermal management system for providing simultaneous spray cooling and dry cooling for a plurality of cards. The dry-wet thermal management system includes a chassis having a dry chamber and a spray chamber, a first opening within a rear portion of the chassis extending into the spray chamber, a second opening within the rear portion of the chassis extending into the dry chamber, and a main backplane secured and sealed to the rear portion of the chassis. Electronic cards may be electrically coupled within sockets of the main backplane within both the dry chamber and the spray chamber. The cards within the spray chamber are typically high heat flux components with increased cooling requirements and the cards within the dry chamber are typically low heat flux components with reduced cooling requirements. A spray cool system is within the spray chamber and a dry cool system is within the dry chamber.

Abstract: A box unit is a housing having a space for containing a circuit board therein. Bus bars are insert-molded in a resin body of the box. A metal shield plate is insert-molded around the entire periphery of the box and outside the bus bars. As a result, the box has a shield and is reduced in size compared with a metal box.

Abstract: The invention relates to an electrical installation, especially a medium-voltage switchgear, comprising at least one encapsulated function module (FM), a decompression channel (DK) which is connected to said function module, and at least one inflow opening (EO . . . ) which connects the function module (FM) to the decompression channel (DK). The covering surface (DF 1,2,3) of the decompression channel (DK), opposite the inflow opening (EO . . . ), comprises at least one partial region which is obliquely oriented in relation to the inflow direction. Hot gases and high pressures produced during an accidental arc can thus be evacuated from the installation, without any risk to humans and buildings. Pressure channels are used, inter alia, in installations used in relation to medium-voltage technique for providing and distributing energy.

Abstract: A cubical computer housing assembly comprises first and second ends and four sides, which define an interior compartment for housing the various computer components. The first and second ends are rigidly connected to one another and are slidingly detachable from four sides of the assembly. The interior compartment comprises three parallelepiped portions, one for accommodating a plurality of circuit boards, one for accommodating a heat sink and hard disk drive, and one for accommodating other memory device such as a CD ROM or DVD player. A hard disk drive is slidingly mounted in a frame which is rigidly mounted relative to the first and second ends. A hinged door on which is mounted a printed circuit board can be moved to an open position to provide access to the disk drive for removal and replacement of same.