Small transformer and production process thereof

Abstract

The invention discloses a small transformer and a production process thereof. The small transformer comprises a bobbin and a magnetic core; the bobbin adopts a square bobbin with two winding recessed cavity grooves; the magnetic core is arranged in the bobbin in a covering manner; the two recessed cavity grooves of the square bobbin are wound with a primary winding and a secondary winding respectively; the small transformer is characterized in that insertion holes are formed in the bobbin; pins are inserted in the insertion holes and include primary pins and secondary pins; the primary winding is connected to the primary pins; and the secondary winding is connected to the secondary pins. Compared with the prior art, the small transformer and the production process have the following advantages: due to direct insertion of the pins and design of pin bases, low-voltage transformer pins are fixed and pin replacement is more convenient; and the production process of the transformer is convenient and simple, so that the production of the small transformer is more processized and efficient.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a small transformer and a production process thereof. Background technique [0002] The transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The main components are the primary coil, the secondary coil, the frame and the magnetic core; the most common method in the prior art is that the pins of the transformer are installed on the frame, and the primary coil and The secondary coils are respectively welded to the pins of the frame, and the coils are wound around the pins and welded. However, during use, the pins of the small transformer are mainly welded on the circuit board to connect with the corresponding circuit, and the pins of the small transformer are easily damaged by welding, or It is because of the bending deformation that it is not easy to weld or even break; the production of small transformers makes the small tran...

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Problems solved by technology

[0002] The transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The main components are the primary coil, the secondary coil, the frame and the magnetic core; the most common method in the prior art is that the pins of the transformer are installed on the frame, and the primary coil and The secondary coils are respectively welded to the pins of the frame, and the coils are wound around the pins and welded. However, during use, the pins of the small transformer are mainly welded on the circuit board to connect with the corresponding circuit, and the pins of the small transformer are easily damaged by welding, or It is because of the bending deformation that it is not easy to weld, or even broken; the production of small transformers makes the small transformers useless if the pins are broken, resulting in a lot of waste. In the final analysis, there are still disadvantages in design and production.

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