The new technology of wireless charging for electric vehicles will end the age of wires

Original: Wireless charging ends the age of wires?

Recently, the world's first electric bus developed by South Korea that can charge wirelessly has entered the testing stage
.
As international electrical giants have intervened in the field of wireless charging, wireless charging technology has become increasingly mature
.
Also as a wire and cable that transmits power and transmits signals, will the popularization of wireless charging technology end the era of wires?

Laziness has always been the biggest driving force of human civilization, and it seems that the way to make people lazy is in line with the scientific theory
of evolution.
Counting the development of data transmission in recent years, from a hundred flowers of data lines to the popular infrared equipment, to the popularity of Bluetooth technology, and then to the red cloud, now wireless charging has officially entered people's lives, more concise information, power transmission methods have broken the shackles and cumbersome operations of traditional data lines again and again, data line transmission has gradually drifted away
.

Wireless charging, seemingly magical, the principle is not new
.
At present, there are two main technologies for wireless charging: electromagnetic induction wireless charging technology and electromagnetic resonance wireless charging technology
.
The principle of the former is electromagnetic induction, the technical advantage is high power, high efficiency, the disadvantage is short charging distance (usually less than 1 cm).

This technology
is applied to the charging pads and charging mats on the market.
The principle of the latter is similar to acoustic resonance, and energy is transferred through low-frequency electromagnetic waves, which can achieve a charging distance
of 3-4 meters.

According to reports, the global wireless charging market is expected to reach 7.
16 billion US dollars (about 43.
8 billion yuan) in 2017, which was 456.
86 million US dollars
in 2011.
From 2012 to 2017, the market is expected to grow at a CAGR of 57.
46%.

Faced with the attractive prospects, international electrical giants have competed to enter the wireless charging equipment market
.
In order to accelerate the development of wireless charging technology, Samsung and Qualcomm announced the formation of the Wireless Power Alliance, in addition to Samsung and Qualcomm, Ever Win Industries, Gill Industries, Peiker Acustic, Powermat Technologies and SK Telecom of South Korea are also members of
the alliance.

The rapid development of wireless charging technology, if one day completely replace "wired", the annual output value of evaporated wires and cables cannot be
underestimated.
At present, wireless charging technology is mainly used in low-power electrical appliances
.
Common such as: mobile phones, PCs, home lighting and other fields
.
In 2012, the global output of mobile phones and PCs was 1.
75 billion units and 350 million units respectively, with an annual output value of nearly 36.
7 billion yuan at the price of 15 yuan
per data cable and 30 yuan for PC power cord on the e-commerce platform.
If applied in the home lighting market
.
According to the data released by the Ministry of Construction, by the end of 2012, the completed housing area of cities and towns across the country reached 1.
03 billion square meters, using BV1.
5 wires 4 circles per 100 square meters, and the market price was 150 yuan / circle, the average house can use less 600 yuan of wires, and the use of wires and cables can be reduced by about 6 billion yuan
per year.

Stepping out of the "age of wires" is no longer a dream, the next era will be the "era of wireless power"
.
The wires and cables that drive modern civilization may end its electric business
.