an alignment jig

Abstract

The invention discloses an aligning jig which comprises a annular frame, and a positioning mechanism used for fixing a back lining comprising a circuit board array is arranged on the annular frame; a regulating mechanism used for regulating a piezoelectric array element is arranged in the position, above the positioning mechanism, of the annular frame; and a pressing mechanism used for pressing the piezoelectric array element and the back lining is arranged above the top of the annular frame. The aligning jig solves the problem of alignment of the circuit board and the piezoelectric array element, is simple to operate, and is precise in positioning.

Description

technical field [0001] The invention relates to the technical field of circuit board connection, in particular to an alignment jig used for precise alignment of a piezoelectric array element and a circuit board. Background technique [0002] In the preparation process of the fully wired ultrasonic probe, the piezoelectric array element is connected to the cable through the circuit board to form a connection loop, and the piezoelectric array element and the circuit board can be connected in two ways: 1. Welding on each array element The piezoelectric array elements are connected to the circuit board through welding wires. With this connection method, when the number of piezoelectric array elements is large, welding will be difficult and time-consuming, which is not conducive to mass production; 2. A plurality of circuit boards form an array corresponding to each array element of the piezoelectric array element one by one. The array and the piezoelectric array element are alig...

AI Technical Summary

Problems solved by technology

[0002] In the preparation process of the fully wired ultrasonic probe, the piezoelectric array element is connected to the cable through the circuit board to form a connection loop, and the piezoelectric array element and the circuit board can be connected in two ways: 1. Welding on each array element The piezoelectric array elements are connected to the circuit board through welding wires. With this connection method, when the number of piezoelectric array elements is large, welding will be difficult and time-consuming, which is not conducive to mass production; 2. A plurality of circuit boards form an array corresponding to each array element of the piezoelectric array element one by one. The array and the piezoelectric array element are aligned with each other, and the terminals on the circuit board form an electrical connection with the piezoelectric array element. The second This connection method is easier to operate than the first connection method, which is conducive to mass production, but when the second connection method is used, when the number of piezoelectric elements is large, each piezoelectric element is small, and it is difficult for the circuit board to be connected to the circuit board. The piezoelectric array elements are precisely aligned, and a slight misalignment will cause a large number of array elements to fail to conduct with the circuit board, and the ultrasonic probe will be scrapped. Therefore, solving the alignment problem between the circuit board and the piezoelectric array element is the second connection The key to the smooth implementation of the method

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