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Charging coil processing method and wireless charging device

A charging coil and processing method technology, applied in circuit devices, coil manufacturing, circuits, etc., can solve the problems of low coil charging efficiency, complicated coil processing methods, and reduced coil accuracy, etc., to achieve high efficiency, less copper wire burrs, The effect of less heat accumulation

Inactive Publication Date: 2020-07-03
HANS LASER TECH IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a charging coil processing method and a wireless charging device, aiming to solve the problem that the existing coil processing method is complex and easily causes coil deformation, reduces coil precision, and ultimately leads to low coil charging efficiency.

Method used

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  • Charging coil processing method and wireless charging device
  • Charging coil processing method and wireless charging device
  • Charging coil processing method and wireless charging device

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] A charging coil processing method provided by the present invention includes the steps of: using a laser to cut the copper foil into a helical copper wire along the helical cutting line; wherein, during the cutting process, the laser follows the helical line along the helical cutting line movement.

[0024] In order to facilitate the understanding of the technical solution of the present invention, it is necessary to explain the helical cutting line and the helical trajectory of the laser respectively. figure 1 Schematic diagram of the completed charging coil, figure 2 It is a partially enlarged schematic diagram,...

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Abstract

The invention provides a charging coil processing method and a wireless charging device. The charging coil processing method comprises the following steps: cutting a copper foil into a spiral copper wire along a spiral cutting line by adopting laser, wherein in the cutting process, the laser moves along the spiral cutting line in a spiral line advancing track. The spiral line advancing track is adopted to replace a traditional line track for laser cutting machining, it can be guaranteed that the reflectivity of different positions of the coil is the same in the machining process, burrs of thecut copper wire are relatively few, the seam width of the coil (namely the gap between the adjacent copper wires) is more uniform, in addition, the spiral line machining mode is adopted, heat accumulation is little, and efficiency is higher. By the adoption of the method, the charging coil with the seam width precision of 0.03 mm can be machined.

Description

technical field [0001] The invention belongs to the technical field of wireless charging, and in particular relates to a charging coil processing method and a wireless charging device. Background technique [0002] With the rapid development of the wireless charging industry, its fast and convenient charging method is more and more recognized by consumers, including common household appliances, power tools, office appliances, etc., can use wireless charging technology. [0003] The conversion rate of the wireless charger is mainly determined by the processing accuracy of the internal charging coil. An existing wireless charging coil processing method is to cut the copper foil into a helical shape by laser, and the laser is cut along the line path during the whole process. Due to the linear bias of the laser, the amount of energy reflected by the copper foil at different places during the cutting process is different, resulting in different slit widths of the cut coils and p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/04H01F38/14H02J50/10
CPCH01F38/14H01F41/04H02J50/10
Inventor 宋彬徐懿胡述旭曹洪涛高云峰
Owner HANS LASER TECH IND GRP CO LTD
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