Electromagnetic relay, method for connecting electromagnetic relay with PCBA (printed circuit board assembly) and time relay

Abstract

The invention discloses an electromagnetic relay, a connecting method of the electromagnetic relay and a PCBA board and a time relay, the electromagnetic relay comprises a base and a magnetic circuit part, the base is provided with a first input pin and a second input pin, the magnetic circuit part comprises a coil rack and an enameled wire, the coil rack is provided with a conductive component, a first metal piece and a second metal piece, and the first input pin and the second input pin are connected through the enameled wire. The conductive part is electrically connected with the first input pin, and the first metal piece is electrically connected with the second input pin; the starting end of the enameled wire is electrically connected to the conductive component, the enameled wire is wound on the coil frame and is electrically connected to the second metal piece and the first metal piece in sequence, the part, between the first metal piece and the second metal piece, of the enameled wire has a preset length, and the part, electrically connected with the first metal piece, of the enameled wire is the tail end of the enameled wire. When the electromagnetic relay provided by the invention is used for assembling a relay with a logic function, the electromagnetic relay does not need to be rewound and replaced, so that the assembling difficulty is greatly reduced, the assembling efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of relays, in particular to an electromagnetic relay, a method for connecting it with a PCBA board, and a time relay. Background technique [0002] The time relay is a delay control controller using the principle of electronic electromagnetics. The traditional electronic electromagnetic time relay is generally composed of electromagnetic relay, PCBA board, etc. Its working principle is to control the opening and closing of the contacts of the electromagnetic relay by controlling the power supply to the coil of the electromagnetic relay in different time periods to achieve the corresponding functions. Its principle block diagram is as follows figure 1 As shown in the figure, the power supply is input to the PCBA board from the corresponding pins set on the base, and the PCBA board is calculated and processed to output an electrical signal to the coil of the electromagnetic relay at a certain time point, ther...

AI Technical Summary

Problems solved by technology

The second approach is as image 3 As shown, the end of the coil 1' is disconnected from the corresponding metal part 5', and the coil 1' is loosened at least one turn and then connected to the PCBA board 2' as an output terminal of the PCBA board 2'. However, Doing so will cause the coil 1' on the bobbin to be easily loosened and messed up, often requiring rewinding

Therefore, when using conventional relays to assemble time relays, there are problems such as introducing too many soft wires and rewinding, which leads to difficulty in product assembly and welding wires, and low efficiency

Images