摘要:
Apparatus and method for condensing a solderless flux vapor onto a work surface to be soldered, such as an electronic circuit board. The flux vapor is created by heating flux in a liquid state to a temperature greater than the temperature of the work surface. Flux is applied to the work surface without the use of any volatile organic chemicals.
摘要:
A headlamp assembly for a motor vehicle having a light source, a chamber that receives the light source and a cooling channel for removing heat from the chamber. A conductive wall and an insulating wall cooperate to define the chamber and the channel. The conductive wall has a substantially higher thermal conductivity than the insulating wall to promote the heat exchange between the chamber and the cooling channel and to reduce heat exchange between the cooling channel and the relatively hot engine compartment.
摘要:
An electronic system generally includes a flatwire electronic site and a flatwire bus electronically connecting the flatwire electronic site to an electronic device in the engine compartment. The flatwire electronic site has a flexible substrate with electronic components attached to the substrate for operation of the electronic device. The flatwire electronic site is mounted to the passenger site of the bulkhead for thermal cooling as well as protection from the harsh environment of the engine compartment. The bulkhead has an aperture sized to allow the flatwire bus to pass through the bulkhead into the engine compartment. By utilizing a flatwire bus, this aperture is small in size and the integrity of the bulkhead is improved.
摘要:
An integrated vehicle structure includes an electronic site in a plastic support structure. The electronic site has a flexible substrate with electronic components mounted thereon. The plastic support structure defines a plastic mounting surface which includes a plurality of elongated ribs projecting from the plastic support structure. Each of the ribs have a side edge forming a portion of the plastic mounting surface. The flexible substrate is mounted to the plastic mounting surface, and a plurality of air flow passageways are defined by adjacent ribs in the flexible substrate. A method support structure may also be provided which defines a metal mounting surface. One or more electronic sides may be attached to the metal and plastic mounting surfaces.
摘要:
There is disclosed herein a method for laser soldering, comprising the steps of: (a) providing an electronic component 10 having at least two terminations thereon; a dielectric substrate 14 having a first surface 16 on a first side thereof, a second surface on a second side thereof, and at least two mounting pads 24 arranged on the first surface 16 in matched relation with the terminations of the electronic component 10; and a diode laser 50; (b) depositing solder paste atop the mounting pads 24; (c) placing the electronic component 10 atop the substrate 14 such that each termination rests generally atop its respective mounting pad 24; and (d) directing laser energy 70 from the diode laser 50 to at least one of the mounting pads 24 from the second side of the substrate 14 for a predetermined time, such that the solder paste atop the at least one of the mounting pads 24 is melted.
摘要:
A soldering process is suitable for use with low cost, low heat distortion temperature thermoplastic substrates without distortion or damage to the substrate yet having the mass production capability exhibited by wave and reflow soldering techniques. The process allows integration of consumer products and, in particular, vehicle components such as integrated instrument panel or other such assemblies, without the redundancy of separate printed circuit boards.
摘要:
An electronic control assembly for a throttle body includes a lower housing portion having a plurality of apertures formed therethrough, a circuit board disposed adjacent at least a portion of the lower housing portion, a pressure sensor disposed adjacent the lower housing portion and electrically coupled to the circuit board, wherein a sensing portion of the pressure sensor extends into a first one of the apertures formed in the lower housing portion, a temperature sensor disposed adjacent the lower housing portion and electrically coupled to the circuit board, wherein a sensing portion of the temperature sensor extends into a second one of the apertures formed in the lower housing portion, and an upper housing portion coupled to the throttle body and cooperating with the lower housing portion to substantially enclose the circuit board, the pressure sensor, and the temperature sensor.
摘要:
A headlamp assembly for a motor vehicle having a light source, a chamber that receives the light source and a cooling channel for removing heat from the chamber. A conductive wall and an insulating wall cooperate to define the chamber and the channel. The conductive wall has a substantially higher thermal conductivity than the insulating wall to promote the heat exchange between the chamber and the cooling channel and to reduce heat exchange between the cooling channel and the relatively hot engine compartment.
摘要:
A headlamp assembly for a motor vehicle including a lens and a housing that cooperate to define an inner chamber that is generally isolated from the atmosphere. A heat sink includes a fin portion that extends from the inner chamber so as to be exposed to ambient air. A light source is located within the inner chamber and is supported on a base portion of the heat sink. The heat sink conducts heat from the light source to air located exterior of the chamber.
摘要:
A headlamp assembly for a motor vehicle including a lens and a housing that cooperate to define an inner chamber that is generally isolated from the atmosphere. A heat sink includes a fin portion that extends from the inner chamber so as to be exposed to ambient air. A light source is located within the inner chamber and is supported on a base portion of the heat sink. The heat sink conducts heat from the light source to air located exterior of the chamber.