Techniques for assembling electrical components with printed circuit
boards
    143.
    发明授权
    Techniques for assembling electrical components with printed circuit boards 失效
    使用印刷电路板组装电气元件的技术

    公开(公告)号:US4254448A

    公开(公告)日:1981-03-03

    申请号:US38742

    申请日:1979-05-14

    Abstract: Electrical components (10 or 30) are fastened to a mounting surface (16) of a printed circuit board (11) by forming a plurality of thermoplastic pins (20, 35) projecting from the mounting surface of the board adjacent to positions where components are to be located. The component is placed on the board so that portions of the component are located adjacent to portions of the pins, following which portions of the pins are heated and formed about portions of the component to form plastic locking sections (22 or 37) that fasten the component to the board in a desired position. The mounting surface (16) of the board may be formed with a pocket (18 or 33) that receives and positions the component at the desired location, so that component leads (17 or 32) extend along the mounting surface to positions overlapping lead-contact areas (14, 34) of printed contact patterns deposited on the mounting surface, after which the leads are attached to the contact areas, as by reflow soldering.

    Abstract translation: 电气部件(10或30)通过形成从板的安装表面突出的多个热塑性销(20,35)紧固到印刷电路板(11)的安装表面(16),邻近于部件的位置 被安置在。 部件被放置在板上,使得部件的一部分邻近销的部分定位,随后销的部分被加热并围绕部件的部分形成以形成塑料锁定部分(22或37) 组件到板的所需位置。 板的安装表面(16)可以形成有一个口袋(18或33),该口袋(18或33)将部件接收并定位在所需的位置,使得元件引线(17或32)沿着安装表面延伸, 接触区域(14,34),其沉积在安装表面上,之后通过回流焊接将引线附接到接触区域。

    Electrical devices such as watches and method of construction thereof

    公开(公告)号:US4142287A

    公开(公告)日:1979-03-06

    申请号:US754817

    申请日:1976-12-27

    Abstract: A method of making electrical devices, and the electrical devices made thereby, comprising the steps of: stamping from a sheet of metal a pattern of conductors configured to connect circuit components together in a relationship which forms a useful product, such as a watch, with the terminals of each of said circuit components being adjacent and connectable to appropriate terminating means formed in said pattern of conductors when said circuit components have predetermined positions adjacent said pattern of conductors; encapsulating said pattern of conductors with plastic having cavities and apertures formed therein, the cavities each having a configuration and a location to receive one of said circuit components therein in said predetermined positions and with said terminating means extending into said cavities to terminate the terminals of said circuit components; forming at least some of said component terminals on the surface of said components in positions to bend over the terminating means when the component is inserted in a cavity to thereby make an electrical connection between the component terminals and the terminating means, and to provide a retaining housing for the components in said cavity. In some instances, the component terminals are wire-like in shape and require the forming of the terminating means in a configuration which can be crimped therearound or, alternatively, require the forming of the terminating means into a plate with a slot therein and into which slot the wire-like terminal can be inserted. Some of the apertures in the plastic encapsulation are positioned to enable the severing of portions of the lead frame conductors which support the lead frame until it is encapsulated and others of the apertures are positioned to enable the severing of various combinations of selected conductors to produce different patterns of interconnections between the circuit components and thereby to produce various electrical devices each capable of performing different functions.

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