Abstract:
Provided is a lead component holder and an electronic device capable of improving vibration resistance performance. A lead component holder (10) includes a plurality of supporting portions (30a, 30b, 30c) each supporting one of lead components (C) at a position distant from a component mounting surface of a substrate (22), and at least one of coupling members (32a, 32b) respectively coupling the adjacent supporting portions (30a, 30b) and (30b, 30c) at a position distant from the component mounting surface. An electronic device (12) includes the substrate (22), the lead component holder (10), and an electronic component mounted to the substrate (22) located below the coupling members (32a, 32b).
Abstract:
An electronic assembly having a large or massive electronic component mounted to a circuit substrate is stabilized against movement due to shock and/or vibration by an elastic dampening member disposed between the large electronic component and a clamping member that compresses the dampening member between the clamping member and the electronic component and urges opposite end walls of the dampening member against opposite sidewalls of the electronic component to securely grip the electronic component between the opposite end walls of the dampening member. The arrangement is effective for reducing and/or eliminating damage and subsequent failure due to exposure of the electronic assembly to shock and/or vibration.
Abstract:
A stand-off mounting apparatus (10/50/80) includes an insulative carrier (12/52/82) for off-board mounting of leaded or surface-mount components (18, 20/58-62/92-96), particularly large temperature-sensitive discrete components such as capacitors. The carrier (12/52/82) has a component-mounting surface that is elevated relative to the circuit board (14), and is positioned with respect to the circuit board (14) such that the circuit board area under the mounting surface of the carrier (12/52/82) is available for the placement of smaller non-temperature-sensitive components. The off-board components (18, 20/58-62/92-96) are mounted on the component-mounting surface of the carrier (12/52/82), and the carrier (82) may include support features (102) for providing additional mechanical support for the components (92-96). Electrical leads (16/56/88) for electrically coupling the elevated components (18, 20/58-62/92-96) to the circuit board (14) may be insert-molded in the carrier (12/52), or may be inserted into plated through-holes (110) in the carrier (82).
Abstract:
A process for stabilizing an electrical component having a body and electrical leads projecting from the body and received in through-holes defined in a substrate, while avoiding disadvantages associated with dispensing a hot-melt adhesive during assembly of an electrical package, involves steps of providing a circuit substrate having through-holes for receiving the leads of a leaded electrical component, providing an electrical component having a body and leads extending from the body, positioning a preformed hot-melt adhesive on the circuit substrate or on the electrical component, positioning the electrical component on the circuit substrate so that the leads extend into the through-holes and so that the preformed hot-melt adhesive is positioned between and fills the gap between the body of the electrical component and the substrate, and activating and solidifying the hot-melt adhesive to securely adhere the body of the electrical component to the substrate.
Abstract:
The invention relates to an electrical component comprising a base body (3) which has two insulating bodies (1, 2) with curved outer surfaces, and an outer electrode (4, 5) is arranged respectively on the end surfaces thereof. A central electrode (7) is disposed in a central section (6) of the base body along the lateral surface thereof, whereby the central electrode (7) comprises a flat mounting surface (8) on the outer side of the component. The invention also relates to an arrangement for said component and to a method for the production thereof. The component can be effectively prevented from rolling away from the top surface of a circuit board (10) by means of the flat mounting surface (8) on the central electrode (7). A retaining surface (9) enables the component to be held in place by suction with the aid of a suction nozzle (11).
Abstract:
The invention relates to an electrical component comprising a base body (3) which has two insulating bodies (1, 2) with curved outer surfaces, and an outer electrode (4, 5) is arranged respectively on the end surfaces thereof. A central electrode (7) is disposed in a central section (6) of the base body along the lateral surface thereof, whereby the central electrode (7) comprises a flat mounting surface (8) on the outer side of the component. The invention also relates to an arrangement for said component and to a method for the production thereof. The component can be effectively prevented from rolling away from the top surface of a circuit board (10) by means of the flat mounting surface (8) on the central electrode (7). A retaining surface (9) enables the component to be held in place by suction with the aid of a suction nozzle (11).
Abstract:
A monolithic inductor (10) comprises an elongated substrate having opposite distal ends (14 and 16), each end having an end cap extending from the opposite ends to support the substrate (12) in spaced relation from a PC board, the end caps being formed with non-mounting areas and a deflection area for preventing the substrate resting on the non-mounting area, a substantially steep side wall (16) on the substrate side of the end cap (14) at the non-mounting area, and an inclined ramp extending up to a top of the end cap on the substrate side substantially opposite the non-mounting area, an electrically conductive soldering band (30) extending partially around each end cap, each soldering band having a gap (34) at the non-mounting area for thereby reducing parasitic conduction in the band (30), and an electrically conductive layer formed on the substrate in a helical path extending between the opposite ends and in electrical contact with the conductive soldering bands (30) at the ramps (120).
Abstract:
Offenbart wird ein Verfahren und eine Vorrichtung zur Herstellung einer Ansaugfläche 6 auf einem Gegenstand, der vorzugsweise ein für die SMD-Montagetechnik vorgesehenes elektrisches Bauteil ist. Dabei wird die plane Ansaugfläche 6 auf der der Montageseite 5 gegenüberliegenden Oberfläche des Bauteils 1 dadurch ausgebildet, daß auf dem Bauteil 1 eine adhäsionsfähige Masse 21 aufgebracht und ein darüber angeordnetes Deckband 13 durch einen Stempel 40 derart auf die Masse 21 gedrückt wird, daß sich diese unter Ausbildung einer planen Fläche verformt. Nach dem Aushärten der adhäsionsfähigen Masse 21 wird das Deckband 13 von der Masse 21 abgetrennt und es entsteht ein Bauteil 1 mit einer planen Ansaugfläche 6 welche zum Beispiel von einer Saugpipette zuverlässig und problemlos angesaugt, dadurch aufgenommen und transportiert werden kann. Die adhäsionsfähige Masse 21 kann hierbei aus einem zu verflüssigenden oder verflüchtigenden Material wie beispielsweise Wachs, Kollophonium oder Kunststoff bestehen.
Abstract:
Die Erfindung betrifft eine Leiterplatte (1) und ein Verfahren zum lagegenauen Bestücken derselben mit elektronischen Bauelementen auf der Oberfläche (12) der Leiterplatte (1), wobei die elektronischen Bauelemente mit einer Reflow-Löttechnik elektrisch leitend und stabil mit der Leiterplatte (1) verbunden werden sollen. Hierfür wird eine Leiterplatte (1) verwendet, die auf der Oberfläche (12) der Außenkontur der jeweiligen Bauelemente zumindest teilweise angepaßte Bereiche (2,3) zur Aufnahme der elektronischen Bauelemente aufweist. Die Bereiche, die als Schlitzkonturen (3) oder eingearbeitete Nuten (2) ausgebildet sind, sichern, daß die nach dem Aufbringen von Lötpaste aufgesetzten elektronischen Bauelemente vor der eigentlichen Verlötung in der gewünschten Position gehalten werden. Zusätzlich läßt sich die bestückte Leiterplatte durch ein Gehäuse, das mit domartig ausgebildeten Ansätzen (14) aus zumindest einem teilweise verformbaren Material besteht, verbinden. Dabei werden die Ansätze die Leiterplatte, diese durchdringend, in dort eingearbeitete Ausnehmungen (14,15 oder 17) eingeführt und form- und/oder kraftschlüssig eine Gehäuse-Leiterplatten-Verbindung durch Verformung der Ansätze (14) erreicht. Außerdem kann ein Überspannungs-Schutzstecker für Anschlußleisten der Fernmeldetechnik mit einem Überspannungsableiter (4) aufgesetzt sein, der die beiden Funktionen "Erdkontakt" und "Fail-Safe-Kontakt" in einem Teil vereinigt und mit geringem Montageaufwand eine Bestückung erreicht werden kann.