Second, wireless charging has lower power and high cost. The current passenger car wireless charging power is up to 11kW, the efficiency is lower than wired charging, the equipment cost is more significant, a 3kW wireless charging system price of more than 10,000, and the same efficiency of AC slow charging pile only more than 1,000. The high cost and low efficiency make the popularization of wireless charging technology face serious challenges. Moreover, the electromagnetic wave radiation problem caused by wireless charging cannot be ignored.
Then to say that the wireless charging used by the passenger car before, the power is not as slowThe efficiency of pile filling, that the current level is already more than the slow filling efficiency. From this point, wireless charging has been qualified to be loaded into the car. However, the application of wireless charging technology to the field of new energy vehicles seems to be a very worthwhile thing, but the specific research and development process has encountered a number of problems. In theory, electric vehicle wireless charging technology can not only greatly improve the user's car experience, but also pave the way for the last link of the unmanned future autonomous driving use scenario. One of the important reasons for the delay in really going to the market is that various countries have no interest in the technologyFailure to develop a unified standard as early as possible has produced a series of "chain reactions", resulting in difficult to scale, marketization.
If the wireless charging technology can be popularized, the car only needs to park in the charging parking lot to achieve fast charging, which can not only reduce the cost of manual services, but also greatly improve the safety of charging. Secondly, if wireless charging technology wants to be truly popular, it also has high requirements for the precise positioning and intelligence of vehicles. Only when the vehicle is precisely parked in the charging space can the ground system establish a channel with the vehicle's on-board system and achieve charging.
2, if in the same mobile phone, the difference is that the 120W charging speed is faster than 25W, and the phone takes less time to fully charge under the same power. The damage to the battery is not that big of a difference, but if you want to protect your phone's batteryPool. Then do not charge at too low a power, because the lower the power, the greater the charging power, the more damage to the battery. It is recommended to charge when 30% of the electricity is charged, and stop charging when 80% is charged.
3, Hello, kiss. The answer is, charging power is different. The difference between 25w fast charge and 120w fast charge is mainly that the charging power is different, the charging speed is also very different, the same 4500 mah battery, 120W only takes about 20 minutes, 25W takes 5 hours.
Because of the technology and cost of wireless charging, generally low-end models do not support wireless charging, only those high-end flagships have wireless charging function. This means that only users who can afford high-end flagship have the opportunity to use wireless charging, the target group is limited, and it is still a relatively small part of the market, which cannot be popularized.
Wireless charging support for the factory flagship machine, the price is too expensive, which should be a very important factor. Look at the current market all support wireless charging powerMost of the models that can be flagship positioning, and expensive, such as Samsung Galaxy series, Apple iPhone X, iPhone8 series, the price of these products at every five or six thousand yuan, or even higher, destined its audience is relatively small.
Wireless charging why chicken ribs? Most people who thought of this feature were people who needed to use their phones for a long time. At present, wireless charging cannot be charged every air interval, so if you need to charge, you must put down the phone and cannot use it. Although many wireless charging banks are now used together with mobile phones, it will undoubtedly affect the experience of using mobile phones. In addition,Some wireless charging users have reflected that the use of wireless charging is easy to cause mobile phones to heat up, affecting the battery life.
Wireless charger charge a night will not hurt the mobile phone, now the mobile phone is lithium battery, not the previous lead battery. Shut down The power will be cut off automatically when it is fully charged. Wireless charger refers to the charger that does not need to be connected to the terminal device that needs to be charged without the traditional charging power cord, and uses the latest wireless charging technology to transmit electricity magically by using the magnetic field generated between the coilsInductive coupling technology will become a bridge connecting charging base stations and devices.
Now the mobile phone is basically full stop charging to prevent overcharging, and fast full charge is low current slow charge, do not worry about a long time to charge the battery caused a big impact. The effects are negligible for now.
The harm is relatively small can be ignored, although wireless charging technology has appeared in the 19th century, but the popularity of mobile phone applications is not high. It uses the principle of "magnetic resonance" to allow the wireless charger to transmit an electric charge through the air to the phone's battery. Many wireless chargers on the market do not indicate radiation levelsThe electromagnetic radiation standard for wireless chargers has not yet been introduced.
Long-term use of radio charging will not affect the phone. Wireless charging is characterized by no charging line restrictions, affected by the nickel-metal hydride battery, this battery has memory, the best way to use is to reach the best state of the battery after charging. The wireless charging method does not have the bondage of the line, and takes it with each charge, reducing the complexity of plugging and unplugging the data cable.