摘要:
An electromechanical transducer with at least one piezoelectric element with a first surface on which a first electrode is applied, and at least one contact flag, through which the piezoelectric element is electrically connected. The electrical connection of the piezoelectric element is of very high contact reliability, in that the contact flag directly contacts the first electrode and exhibits at least one depression, into which an adhesive is placed, by which the contact flag is connected with the electrode.
摘要:
This circuit board contains electronic components having electrical contacts. At least one of the electrical contacts is initially glued to the circuit board using a conductive adhesive and at least one of the electrical contacts is connected to the circuit board by soldering. The circuit board is suitable for fast mechanical mass production. Further a method for the manufacture of the connection between the circuit board and the electronic components is disclosed, in which a solder is applied to soldering points and a conductive adhesive is applied to adhesive points. The circuit board with the components is then placed in a furnace to connect the components to the circuit board.
摘要:
A circuit board with a contact sleeve mounted thereon. The contact sleeve is electrically connectable in the manner used for an SMD-component. An upper side of the circuit board has a recess and a metallizing bordering the recess, the metallizing being connected to a conductor path extending on the circuit board, and, set in the recess, a contact sleeve, which is both mechanically secured and electrically connected to the metallizing by means of a solder connection.
摘要:
The invention relates to a device (1) for determining the filling level in a container (4). Moreover, the invention also relates to a method for fastening an input coupling unit (9) on the antenna (7), the antenna (7) being used in the device (1) according to the invention. It is the object of the invention to provide overvoltage protection for an antenna (7), and a method for producing such an antenna (7). The object is achieved by virtue of the fact that the antenna (7) comprises at least two dielectric layers (12, 13). The first dielectric layer (12) has at least one cutout (15) for holding the input coupling unit (9). The second dielectric layer (13) bears an antenna structure (16) on the side facing the first dielectric layer (12) and has a conductive coating (17) with openings (18) on the side averted from the first dielectric layer (12). Contacts (19) are provided in the second dielectric layer (13) and the conductive layer (17) which connect the input coupling unit (9) to the conductive coating (17). The region of space defined by the contacts (19), the conductive coating (17) and the antenna housing (30) forms a Faraday cage.
摘要:
In order to secure wired components of large mass or non-uniform mass distribution safely on a circuit board, without the components needing, as currently usual, to be glued onto the circuit board or held on the circuit board with snap-in holders, integrated into a connection bore for receiving a connection wire, or pin, of an electronic component a holding mechanism for secured holding of the connection wire, or pin. The holding mechanism represents a narrowing in the connection bore to a diameter smaller than that of the connection wire, or pin. The holding mechanism can be implemented, for example, by a connection bore embodied in the form of a bore drilled from one side of the circuit board, not completely through the circuit board. In such case, a edge remains as a narrowing, which securely seizes the connection pin of the relevant component and holds the component fixed to the circuit board.
摘要:
A circuit board with a holding mechanism integrated into the circuit board for the holding of wired, electronic components. To this end, a connection bore is provided for receiving a connection wire or pin of the component. The connection bore is formed from two neighboring and partially mutually overlapping bores. In such case, the first bore is so placed relative to a second bore that ridges are formed in the interior of the connection bore as a result of the overlapping of the first and second bores. The ridges provide a narrowing of the open passageway through the connection bore. In this narrowing, the connection wire or pin is controllably, securely seized by the ridges.
摘要:
A circuit board and method for populating, securing and electrical contacting of components thereon is provided, as an alternative to the known pressfit technology. After the soldering of SMD-components on a first side of a circuit board, conductive adhesive and solder paste are applied on a second side of the circuit board and a connection pin of a thermally critical THT-component is inserted into the special connection bore from the first side of the circuit board. Then, on the second side of the circuit board, SMD-components are set into the solder paste. In a reflow soldering oven, the SMD components are soldered and the conductive adhesive is dried and cured. By the binding effect of a metallizing sleeve of the connection bore, the insertion of the connection pin in the area of the a constriction produces a kind of cold weld connection, which, alongside the electrical connection by the conductive adhesive, represents a redundant connection, which accompanies the highly secure mechanical connection by the conductive adhesive.
摘要:
In order to secure wired components of large mass or non-uniform mass distribution safely on a circuit board, without the components needing, as currently usual, to be glued onto the circuit board or held on the circuit board with snap-in holders, integrated into a connection bore for receiving a connection wire, or pin, of an electronic component a holding mechanism for secured holding of the connection wire, or pin. The holding mechanism represents a narrowing in the connection bore to a diameter smaller than that of the connection wire, or pin. The holding mechanism can be implemented, for example, by a connection bore embodied in the form of a bore drilled from one side of the circuit board, not completely through the circuit board. In such case, edge remains as a narrowing, which securely seizes the connection pin of the relevant component and holds the component fixed to the circuit board.