Relay to prevent mistaken insertion of stationary spring

Abstract

A relay to prevent mistaken insertion of a stationary spring is an automatic switch to control high current via low current and comprises a magnetic circuit portion and a contact portion; the magneticcircuit portion includes a frame; the contact portion includes a stationary spring; the stationary spring is composed of a connection segment that is integrated and an insert segment that may be inserted into a circuit board; the right side of the connection of the connection segment and the insert segment is provided with an inclined shoulder; the frame is provided with a through hole that allows insertion of the stationary spring and that mates with the connection segment, wherein the lower portion of the right wall of the through hole is provided with an anti-mistaken-insertion step matingwith the inclined shoulder. As the lower portion of the right wall of the through hole is provided with the anti-mistaken-insertion step mating with the inclined shoulder, when a worker mistakenly insert the stationary spring by accident, the anti-mistaken-insertion step at the lower portion of the right wall of the through hole may block the insert segment at the bottom of the stationary spring;therefore, it is avoided that workers mistakenly insert the stationary spring into the through hole of the frame during stationary spring fitting, and scrapping rate of the relay is decreased.

Description

Technical field: [0001] The invention relates to an electric switch, in particular to a relay capable of preventing the static reeds from being inserted incorrectly when the static reeds are installed. Background technique: [0002] The relay is an electronic control device, which is an "automatic switch" that uses a small current to control a large current. Currently, there is a relay on the market, such as image 3 with Figure 4 As shown, it is generally composed of a magnetic circuit part and a contact part, etc. The magnetic circuit part usually includes a yoke iron 108, a skeleton 101, an iron core 107 connected to the skeleton 101, and a coil 100 wrapped on the outer peripheral wall of the iron core 107. The yoke The iron 108 is connected to the frame 101, and the two ends of the coil 100 are connected with lead pins 106. The contact part usually includes a moving reed and a static reed and contacts respectively connected to the moving reed and the static reed. The s...

AI Technical Summary

Problems solved by technology

Although this relay has been widely used, it still has a deficiency in the actual application process: since the through holes 103 provided on the skeleton 101 are usually straight through holes, when the worker assembles the static spring, the worker It is easy to insert the static reed wrongly (insert reversely), that is, the slanted shoulder 105 is towards the left side. Once the static reed is inserted wrongly, the insertion section 104 at the bottom of the static reed will no longer be able to be inserted into the static position provided on the circuit board. In other words, when the oblique shoulder 105 faces to the left, the insertion section 104 at the bottom of the static reed will be misaligned with the static reed socket on the circuit board, causing the entire relay to be scrapped

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