Automatic input voltage switching device for mah-jong machine

Abstract

The invention relates to an automatic input voltage switching device for a mah-jong machine. The automatic input voltage switching device consists of an input voltage switching module and a three-input linear transformer. The automatic input voltage switching device adopts an power supply mode that the input voltage switching module is combined with the three-input linear transformer; the three-input linear transformer provides reliable and stable power for a mah-jong machine body; the input voltage switching module is connected with the commercial power by virtue of a power line; the voltage of the commercial power ranges from 140V to 220V, so that a user does not need to perform any adjustment setting; The control circuit and a motor of the mah-jong machine can provide stable 110V power, thereby greatly facilitating mah-jong fanciers, and being more beneficial to the production and sale of the mah-jong machine. The automatic input voltage switching device has the obvious advantages of simple structure, wide application range, convenience in use, easiness for popularization and the like.

Description

technical field [0001] The invention relates to an automatic switching device for input voltage of a mahjong machine. Background technique [0002] At present, mahjong machines with automatic shuffling and numbering are becoming more and more popular among domestic consumers. However, due to the different power supply quality in different regions, the mains voltage in rural and remote areas is often unstable, and the voltage fluctuates greatly. When the voltage is low, it even reaches below 160V, which seriously affects the normal operation of the mahjong machine. It is equipped with a manually adjusted voltage regulator, but this is inconvenient and uneconomical, which brings great inconvenience to the mahjong entertainment. At the same time, the mahjong machine manufacturer cannot predict the use voltage of the mahjong machine, and it is impossible to produce mahjong machines for different power supply voltages. , which requires the manufacturer to produce a mahjong machi...

AI Technical Summary

Problems solved by technology

However, due to the different power supply quality in different regions, the mains voltage in rural and remote areas is often unstable, and the voltage fluctuates greatly. When the voltage is low, it even reaches below 160V, which seriously affects the normal operation of the mahjong machine. It is equipped with a manually adjusted voltage regulator, but this is inconvenient and uneconomical, which brings great inconvenience to the mahjong entertainment. At the same time, the mahjong machine manufacturer cannot predict the use voltage of the mahjong machine, and it is impossible to produce mahjong machines for different power supply voltages. , which requires the manufacturer to produce a mahjong machine that can work under different voltage conditions

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