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In the era of rampant smartphones, consumers have a greater demand for battery capacity, and charging speed is a major pain point for consumers. Therefore, the CB1.2 QC2.0 QC3.0 QC4.0 represented by Qualcomm, the PD2.0 PD3.0 represented by Apple and Microsoft, and the VOOC charging method represented by Huawei, OPPO, and VIVO are commonly known as flash charging. The charging speed has increased, but the energy consumption and the heat generated by the charger have also increased. The heating of the charger is due to its low energy efficiency design, with only 70% efficiency. 30% of energy efficiency has been converted into heat dissipation.
Dongguan Ouyi Electronic Technology Co., Ltd. has been focusing on the cold charging power supply industry for 12 years and has some unique insights into chargers. So, what kind of charging equipment is responsible for consumers? Explain from the following aspects:
Firstly security
This is the most basic requirement. When it comes to safety, first of all, there must be no explosion or ignition. Secondly, the temperature of the product should not be too high. If the surface temperature is too high, consumers will wonder if it will explode, catch fire, or charge the phone battery. Then there are hard indicators such as overload protection and short circuit protection
Secondly, efficiency
Chargers are also electrical appliances, and consumers will also think about how much electricity the product will consume, whether it will also consume electricity if not plugged into the power bank
Thirdly, lifespan
How long can consumers use the charger after buying it back, and will it break down within one or two months
Fourth, charging speed
Buy a charger and only know how long it will take to fully charge your device
Based on the above four consumer questions, Guangdong Ouyi has been focusing on cold charging for 12 years to answer them for you:
All four points mentioned above can be solved by achieving one:
Reduce the operating temperature of the charger itself
That is to say, when the charger is operating at full load and the surface temperature of the charger is less than 40 ℃, it is called cold charging
The benefits of cold charging:
1. The working temperature is low, and consumers do not feel that the surface of the shell is hot. Coupled with the basic design of the charger, it can solve the first problem that ordinary people are worried about
To keep the surface temperature of the charger below 40 ℃, taking the working efficiency of a 5V2A charger as an example, it must be above 86%. This means that only about 14% of the energy is consumed in conversion and transmission. Of course, the higher the power, the higher the required efficiency. Even if it is plugged in, it can consume up to 0.035W of standby power, which is basically equivalent to no power consumption, solving the second problem for consumers
3. The lifespan of a charger mostly depends on the service life of the electrolytic capacitors on the internal board. The electrolyte will dry up according to the increase in operating temperature. When the electrolyte completely dries up, the lifespan of the charger will also come to an end. Cold charging, on the other hand, slows down the drying of the electrolyte due to low operating temperature, greatly increasing the lifespan of the charger
4. Currently, more than 95% of the batteries in mobile devices on the market can only accept a current of 2A~2.4A to charge them. Increasing the voltage to increase the charging speed is certainly a method, but it will reduce the output conversion rate of the whole machine, which means the efficiency is low and the temperature will rise. In fact, as long as the charger is sufficient for 2A or 2.4A, it can meet the charging needs of 95% of mobile phones on the market, and it is cheap, fast, efficient, and has a long service life. It is truly the preferred choice for home travel
Energy conservation and emission reduction, high-quality life, we urge everyone to support the application of cold charging!
Dongguan Ouyi Electronic Technology Co., Ltd. has been focusing on cold charging technology for 12 years!