摘要:
The heat sink is mounted on a back plane of an auxiliary circuit board and the auxiliary circuit board is mounted on a main circuit board. In one embodiment, the heat sink is planer and extends between parallel auxiliary and main circuit boards. A finned heat dissipating member is at one side of the planar portion. Mounting pins in channels mount the heat sink to the main circuit board. The second embodiment is u-shaped and stands on edge to mount the auxiliary circuit board perpendicular to the main circuit boards. Mounting pins in channels of the second embodiment likewise mount the heat sink to the main circuit board.
摘要:
A surface mounted power transistor is provided with a heat sink by positioning a mounting plate of a heat sink between the power transistor and a solder pad on the circuit board. The mounting plate of the heat sink is provided with a plurality of openings through which the solder of the solder pad flows during the solder reflow process so that the mounting plate is securely adhered between the power transistor and the circuit board. The mounting plate of the heat sink is connected thermally to an extension member which extends generally perpendicular to the mounting plate, the extension member in turn being connected to a heat dissipation surface which may be one or several fins.
摘要:
A surface mounted power transistor is provided with a heat sink by positioning a mounting plate of a heat sink between the power transistor and a solder pad on the circuit board. The mounting plate of the heat sink is provided with a plurality of openings through which the solder of the solder pad flows during the solder reflow process so that the mounting plate is securely adhered between the power transistor and the circuit board. The mounting plate of the heat sink is connected thermally to an extension member which extends generally perpendicular to the mounting plate, the extension member in turn being connected to a heat dissipation surface which may be one or several fins.
摘要:
A bowsprit, or spar, for supporting a spinnaker sail at the front of a sailboat is mounted on the deck of the sailboat. The bowsprit is retractable and extendable in telescoping fashion and includes a rope or tack line extending from the forward end thereof that connects to the corner or tack of the spinnaker sail. The aft or back end of the bowsprit is clipped to the mast and may be unclipped therefrom and secured to the deck so as to position the bowsprit at an angle to the boat to present the spinnaker sail to the wind. The present bowsprit is mounted along the midline of the boat and extends through a swivel bridle that connects the forestay to the deck. Extension of the bowsprit is accomplished by pulling a line connected to the inner pole of the bowsprit and passing around a pulley so that the inner pole slides out to an extended position from the outer sleeve of the bowsprit.
摘要:
The heat sink is mounted on a back plane of an auxiliary circuit board and the auxiliary circuit board is mounted on a main circuit board. In one embodiment, the heat sink is planer and extends between parallel auxiliary and main circuit boards. A finned heat dissipating member is at one side of the planar portion. Mounting pins in channels mount the heat sink to the main circuit board. The second embodiment is unshaped and stands on edge to mount the auxiliary circuit board perpendicular to the main circuit boards. Mounting pins in channels of the second embodiment likewise mount the heat sink to the main circuit board.
摘要:
The present invention provides a housing for an auxiliary circuit to be connected to a main circuit. The housing includes a heat tab for conducting the heat away from the auxiliary circuit components and an insulating case which is molded together with the heat tab to interlock the heat tab to the case. The case is molded around a chamfered edge of the heat tab. The insulating case includes a back and two sides extending from the back to define an area which contains the auxiliary circuit components. The heat tab is molded into the back and faces the component area so heat generated from the components can be spread to the main circuit by the heat tab. Openings may be provided through the back of the insulating case. The heat tab and legs on the sides of the housing are used to mount the power supply to a circuit board.
摘要:
A case for an auxiliary circuit board to be mounted on a main circuit board includes a copper sheet formed into a U-shape in which the auxiliary circuit board is mounted. Mounting pins extend from two edges of the case for positioning the auxiliary circuit board perpendicularly to or parallel to the main circuit board. Mounting pins for through hole mounting and support tabs for surface mounting are provided, the unneeded features being removed prior to use of the case.
摘要:
The present invention generally provides a case for a printed circuit board which forms a single in-line pin configuration from an edge connected circuit board. The case includes a frame enclosing the edges of the circuit board and a base at a mounting plane side of the frame. Connector pins affixed to the edge connectors of a printed circuit board are secured to the printed circuit board and extend from the base. A tab extending generally parallel to the frame from an edge of the base provides a smooth vacuum pick up engagement surface for handling and placement of the present case.
摘要:
A housing for a toroid coil has side walls closely formed around the coil and a top connected at a gap from the side walls by attachments. The top provides a flat, relatively smooth vacuum pick up surface for mounting the coil on a circuit board and is removable by breaking off the attachments. The side walls have a front wall with wire wrap posts extending therefrom positioned so that the wire of the coil lies in the mounting plane for surface mount connection when wrapped on the posts. Slots are provided in the front wall to receive the wire to prevent cutting or scoring of the wire or its coating or cover during removal of the top. The back of the walls is open to reduce length and thickened supports are provided at the edges of the walls adjacent the back.
摘要:
The heat sink is mounted on a back plane of an auxiliary circuit board and the auxiliary circuit board is mounted on a main circuit board. In one embodiment, the heat sink is planer and extends between parallel auxiliary and main circuit boards. A finned heat dissipating member is at one side of the planar portion. Mounting pins in channels mount the heat sink to the main circuit board. The second embodiment is u-shaped and stands on edge to mount the auxiliary circuit board perpendicular to the main circuit boards. Mounting pins in channels of the second embodiment likewise mount the heat sink to the main circuit board.