公开(公告)号：US4842526A

公开(公告)日：1989-06-27

申请号：US151577

申请日：1988-02-02

申请人： Felix Stukalin ,  Kristopher F. Pruyn

发明人： Felix Stukalin ,  Kristopher F. Pruyn

IPC分类号： G01R1/04

CPC分类号： G01R1/0483 ,  H01R2107/00 ,  H01R24/86

摘要： A test fixture for facilitating connection between a pin grid array, such as those found on multi-lead electronic components, and the test leads of a diagnostic device, useful for testing such components after they are mounted on printed circuit boards. A base element is formed of transparent plastic material and carries an array of connectors, the number and arrangement of which depend upon the component to be tested. Each connector includes a test lead connector, adapted for attachment to a test lead, and a pin engagement member, adapted for making and retaining physical contact with a component pin. The pin engagement member is carried resiliently in the connector body, able to move longitudinally therein. A resilient seal means extends around the outer periphery of the underside of the base member, defining a well in the space below the base member. The seal means may include multiple resilient seal layers, separated by stiffeners. In operation, the fixture is aligned with the pin grid array protruding through the printed circuit board on the side of such board opposite the component. A vacuum system introduces subatmospheric pressure into the well, forcing the fixture against the printed circuit board and causing the connectors to make contact with the component pins.

摘要翻译： 用于促进诸如在多引线电子部件上发现的针阵列与​​诊断装置的测试引线之间的连接的测试夹具，其用于在将这些部件安装在印刷电路板上之后进行测试。 基部元件由透明塑料材料形成，并带有连接器阵列，其数量和布置取决于被测试元件。 每个连接器包括适于连接到测试引线的测试引线连接器和适于制造和保持与部件销的物理接触的销接合部件。 销接合构件在连接器主体中弹性地承载，能够在其中纵向移动。 弹性密封装置围绕基部构件的下侧的外周延伸，在底部构件下方的空间中限定一个井。 密封装置可以包括由加强件分开的多个弹性密封层。 在操作中，夹具与通过印刷电路板突出的销栅格阵列对准，在该板上与元件相对的一侧。 真空系统将低于大气压的压力引入井中，迫使夹具抵靠印刷电路板并使连接器与部件销接触。