Spring-fixed switching power supply transformer for electrical teaching

Abstract

The invention discloses a spring-fixed switching power supply transformer for electrical teaching. The transformer comprises a cooling fan, a transformer casing, a casing fixing block, a product nameplate, a power indicator lamp, and a wire connector. According to the transformer, a copper wire stranding structure, a driving structure and a wire fixing device cooperate with one another, when a power wire needs to be mounted on the transformer, the driving structure enables the wire fixing device to fix a copper wire, so that the power wire can be fixed in place without repeatedly screwing a bolt, thereby shortening the wiring time of a practice worker and improving the wiring efficiency during the training process. Further, the copper wire stranding structure strands the copper wire and then delivers the current so as to ensure that each copper wire can conduct electricity and improve the electrical conductivity of the wire.

Description

technical field [0001] The invention relates to the field of electrical equipment, in particular to a transformer for a switching power supply for electrical teaching that is fixed by shrapnel. Background technique [0002] In the electrical wiring teaching and training process of the Electric Power College, in order to make students more proficient in the operation and installation of equipment, students need practical training to connect electrical equipment with transformers, switches, solenoid valves, etc., but the current technical considerations are not enough. Perfect, with the following disadvantages: [0003] Existing transformers need to repeatedly screw the bolts to fix the power wires in place during wiring. The operation time is long, the wiring efficiency is extremely low, and the grooves of the bolt heads are likely to wear out during long-term use, which in turn leads to the bolts coming out of teeth. The screwdriver cannot be unscrewed; at the same time, wh...

AI Technical Summary

Problems solved by technology

[0003] Existing transformers need to repeatedly screw the bolts to fix the power wires in place during wiring. The operation time is long, the wiring efficiency is extremely low, and the grooves of the bolt heads are likely to wear out during long-term use, which in turn leads to the bolts coming out of teeth. The screwdriver cannot be unscrewed; at the same time, when the copper wire of the power wire is fixed under the bolt and screwed in, it is easy to cause the copper wire in the wire to be twisted during the rotation of the bolt, reducing the conductivity of the wire, and at the same time, it is easy to cause broken copper wire and Other wires contact each other and cause a short circuit of the wires, resulting in damage to electrical equipment

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