Abstract: A CPU cooling assembly includes a copper cold plate in which a pattern of ultra thin fins and channels are formed, and a copper manifold-cover in which a series of alternating inlet and outlet channels are formed, at right angles to the fin pattern. The manifold cover is sealed to the cold plate by a resistance welding technique that melts and closes up a perimeter welding seam just as the bottom edges of the manifold channels lightly engage the top edges of the micro fins. The result is a fully sealed assembly in which the channels and fins form an effective, very finely divided and regular checker board flow pattern for a suitable cooling fluid, with no deformation or clogging of the ultra thin flow channels.

Abstract: The invention provides for an orientation insensitive heat exchanger assembly for cooling an electronic device comprising a hermetically sealed housing defining a boiling chamber and two condensing chambers. A partition is disposed in the boiling chamber and defines two sets of alternating channels extending in overlapping relationship to one another and with one set of alternating channels open to one of the condensing chambers and the other set of alternating channels open to the other condensing chamber for sealing the condensing chambers from one another. Coolant is maintained in each of the condensing chambers. In operation, if the thermosiphon is tilted with one side lower than the other, the channels open to the lower side are empty of coolant into the lower condensing chamber while the channels open to the opposite upper side hold the coolant over the entire boiling chamber aligning with an electronic device to continue cooling.

Abstract: The subject invention provides a method of manufacturing an all-metal cold plate heat exchanger assembly for removing excess heat from a heat generating electronic component. The cold plate assembly includes a base plate having micro-channels and associated micro-fins, a manifold plate having alternating channels, and a manifold cover, wherein the manifold plate cooperates with the micro-channels to form an engineered pathway for coolant flow. This method assures a tight interface sealing between the contact surfaces of the alternating channels of the manifold plate and the coplanar surfaces of the micro-fins that would prevent coolant by-pass flow, but without clogging or jeopardizing the flow through the micro-channels. This method utilizes a layer of recast metallic particulates, which is a natural by-product of laser machining, as a compliant gasket material between the coplanar edges of the alternating channels and the coplanar edges of the micro-fins.

Abstract: A cooling system includes a fan assembly that is rotated to move air in a primary path through a housing. The fan assembly includes a hub and a plurality of spaced reinforcing ribs that establish channels between a motor casing and the interior of the hub. A heat sink assembly is axially spaced from a hub bottom to define an air cavity that is in communication with a gap. The hub includes a tube that defines an air passage to establish communication with the cavity. A plurality of air vanes extend in a spiral path from the hub bottom and into the air cavity to move air through the air passage and create turbulence over the heat sink assembly. The air vanes move the air over the heat sink assembly and through the air passage to establish communication between the channels and the air cavity.

Abstract: The invention relates to a method of making a brazed micro-channel cold plate assembly for cooling a heat producing electronic component. The primary components of a cold plate assembly are a base plate, a manifold cover, and inlet/outlet pipes; wherein the individual components are assembled and brazed into an integral unit. The joining surfaces of the individual components have novel features that provide for permanent bonding of the joints by brazing and a hermetic seal along the joint seams. The novel features also forestall excess braze alloy from contaminating the interior surfaces of the assembled cold plate and obstructing the engineered flow channels.

Abstract: A heat transfer assembly comprising of an electronic component attached to an attachment point located on a circuit board and a clamping mechanism which applies a downward force against a block. In return, the block applies force against a heat transfer device which contacts the electronic component. The interface between the block and the heat transfer device contain a number of tongues and grooves to allow for positive location of the block against the heat transfer device while the clamping mechanism is fastened to the support. The positive location is configured for applying a localized force against a specific area on the electronic component.

Abstract: A portable air filtration system includes a filter housing having an air inlet and outlet. The housing defines a filtration chamber between the inlet and outlet. The air filtration system uses an intake fan, an ionizing mechanism, a filter media, and a conductive coating to filter air. The fan moves the air through the chamber. The ionizing mechanism ionizes particles within the air to a negative charge. The media includes an upstream side facing the inlet and a downstream side facing the outlet and is disposed between the ionizing mechanism and the outlet to entrap the particles. The conductive coating is applied to the upstream side of the media. This establishes an electric field between the ionizing mechanism and the conductive coating. Furthermore, the upstream side of the media is electrically-connected to ground through the conductive coating for dissipating the negative charge of the particles entrapped within the media.

Abstract: A portable air filtration system includes a filter housing having an air inlet and an air outlet. The filter housing defines a filtration chamber between the air inlet and the air outlet. The portable air filtration system uses an ionizing mechanism, a filter media, and an electrode to filter air. The ionizing mechanism ionizes particles within the air to a negative charge. The filter media is disposed between the ionizing mechanism and the air outlet for entrapping the particles. The electrode is disposed between the ionizing mechanism and the filter media to establish an electric field. The electric field is established between the ionizing mechanism and the electrode adjacent to the filter media. The electrode is also electrically-connected to ground and to the filter media for dissipating the negative charge of the particles entrapped within the filter media.

Abstract: An improved circuit supplies electrical power to a vehicle accessory load, such as a load that is powered through a vehicle accessory load connector or cigarette lighter plug. The circuit utilizes battery voltage comparator and timer switching circuitry to interrupt the supply of power to the accessory load if the engine-driven alternator fails to charge the storage battery for at least a predefined time interval (i.e., when the vehicle engine is not running), and to automatically re-establish electrical power supply to the load when battery charging resumes (i.e., when engine operation resumes).

Abstract: An improved circuit supplies electrical power to a vehicle accessory load, such as a load that is powered through a vehicle accessory load connector or cigarette lighter plug. The circuit utilizes battery voltage comparator and timer switching circuitry to interrupt the supply of power to the accessory load if the engine-driven alternator fails to charge the storage battery for at least a predefined time interval (i.e., when the vehicle engine is not running), and to automatically re-establish electrical power supply to the load when battery charging resumes (i.e., when engine operation resumes).

Abstract: An HVAC system including a housing, an evaporator assembly, a heater core assembly, an air inlet assembly, a fan assembly, and a film valve assembly including first and second rollers, wherein each roller includes a biasing member with a constant force urging the biasing members to rotate and the biasing members are biased in opposite directions.

Abstract: An HVAC system including a housing, an evaporator assembly, a heater core assembly, an air inlet assembly, a fan assembly, and a film valve assembly including first and second rollers, wherein each roller includes a biasing member with a constant force urging the biasing members to rotate and the biasing members are biased in opposite directions.

Abstract: An automotive air conditioning assembly has a fan that is molded by a technique that inevitably leaves the lower hub and upper rim radially staggered relative to one another. Therefore, a substantial length of the edges of the blades' bases are unsupported by the incomplete hub, and the air forced radially outwardly between the blades has no fan structure to confine it at that point. The invention provides a fan housing having a wall portion specially shaped so as to provide the air confinement function that the missing section of the fan hub cannot.