Inner arc type variable cross-section L-shaped terminal electrical testing fixture

Abstract

The invention discloses an inner arc type variable cross-section L-shaped terminal electrical testing fixture, which comprises a plastic shell and a plurality of terminal sheets arranged in the plastic shell and partially exposed, wherein the terminal sheet comprises a support welding pin plugboard, an L-shaped connecting force arm which extends forwards from the front edge of the support weldingpin plugboard, and a contact sheet which is formed by bending the free end of the L-shaped connecting force arm upwards. The L-shaped connecting force arm comprises a horizontal supporting section anda first vertical connecting section formed by bending the free end of the horizontal supporting section downwards, and the free end face of the contact sheet is provided with an inwards-concave arc surface. The test performance is stable and reliable, the structural strength is high, the service life is long, and miniaturization design can be achieved.

Description

【Technical field】 [0001] The invention belongs to the technical field of electric test fixtures, in particular to an electric test fixture for an L-shaped terminal with an inner arc variable cross-section. 【Background technique】 [0002] Various equipment and products with circuit boards are inevitably tested for electrical performance during the manufacturing process to check whether their internal circuits are qualified and whether they are short-circuited. The corresponding part is plugged in to realize the connection of the conduction circuit, and then the detection can be carried out. On the automated production line, as the manufacturing efficiency of the product gradually increases, the efficiency of product detection also gradually increases. Greatly improved, after a long time of plug-in connection, it is often prone to the phenomenon of test fixture connection failure or terminal breakage, or terminal deformation and poor connection, which seriously affects the tes...

AI Technical Summary

Problems solved by technology

[0002] Various equipment and products with circuit boards are inevitably tested for electrical performance during the manufacturing process to check whether their internal circuits are qualified and whether they are short-circuited. The corresponding part is plugged in to realize the connection of the conduction circuit, and then the detection can be carried out. On the automated production line, as the manufacturing efficiency of the product gradually increases, the efficiency of product detection also gradually increases. Greatly improved, after a long time of plug-in connection, it is often prone to the phenomenon of test fixture connection failure or terminal breakage, or terminal deformation and poor connection, which seriously affects the test efficiency; and the traditional test head is in contact with the product to be tested When the contact surface is very small, the electrical contact is used, resulting in a very small tolerance value, low detection efficiency and poor reliability of the detection results; and the traditional test head is made of different materials, and the floating of the contact terminal is held by a spring. Realization, greatly limited in the realization of miniaturized design, which seriously affects the size of the test fixture for miniaturized design

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