On-site operation hand-held terminal wireless charging apparatus

Abstract

The invention relates to an on-site operation hand-held terminal wireless charging apparatus. The wireless charging apparatus comprises a power supply, a hand-held terminal, a charging table shell and a charged table shell; a primary coil for charging is mounted in the charging table shell; the two ends of the primary coil are connected with filter capacitors c1 in parallel and then are connected with the power supply; a secondary coil is mounted in the charged table shell; the output wires at the two ends of the secondary coil are connected with a filter circuit consisting of a capacitor C2, a diode D1 and a capacitor C3 and then pass through a shield plate to be connected with a contact on the other side of the shield plate; a charging electrode of a charging battery of the hand-held terminal is electrically connected with the contact; the left side of the shield plate is fixedly connected with the charged table shell; and the right side of the shield plate is fixed on a back plate of the hand-held terminal through a mounting bolt. The problem that the hand-held terminal is damaged or declared worthless caused by aging and damage of the charging interface due to dusts in capital construction sites is effectively solved by the on-site operation hand-held terminal wireless charging apparatus.

Description

technical field [0001] The invention belongs to the technical field of handheld terminal equipment, in particular to a wireless charging device for a handheld terminal in field operations. Background technique [0002] Handheld terminals for on-site operation of infrastructure projects generally have short working hours of terminal equipment, which cannot guarantee the work demand of 8 hours or even overtime to 10 hours. Moreover, it is not easy to find a charging power source at the work site, causing the handheld terminal device to fail to meet the normal working hours requirements because it cannot be charged. The solution of taking it back to the office for charging: it will cause a waste of time and the timeliness of work will not be satisfied. In addition, the charging power source of the handheld terminal (tablet computer) used on the infrastructure project site has a larger capacity and higher charging voltage than the battery of the mobile phone. Plugging and unpl...

AI Technical Summary

Problems solved by technology

[0002] Handheld terminals for on-site operation of infrastructure projects generally have short working hours of terminal equipment, which cannot guarantee the work demand of 8 hours or even overtime to 10 hours

Moreover, it is not easy to find a charging power source at the work site, causing the handheld terminal device to fail to meet the normal working hours because it cannot be charged.

The solution of bringing it back to the office for charging: it will cause a waste of time and the timeliness of work will not be satisfied

In addition, the charging power source of the handheld terminal (tablet computer) used on the infrastructure project site has a larger capacity and higher charging voltage than the battery of the mobile phone. The plugging and unplugging of the connector, frequent operations will cause damage to the charging interface, and the connection will become loose

There is an aging problem of the charging line; the charging interface is damaged by the dust on the job site, because the equipment is intruded into the charging interface by the dust on the job site, the plug and socket are very easy to be damaged during charging

Due to the above reasons, the service life of the handheld mobile terminal is short and the equipment investment cost is high.

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