With the development of society, the rapid development of mobile phones and digital equipment has brought us convenience. At the same time, it is inevitable that something embarrassing will happen to us. The most obvious thing is that when the whole family is at home or friends get together, people often touch mobile phones at the same time, There is no power for digital devices such as pads. At this time, people always feel a trace of disharmony when they rush to plug in and recharge. With more and more of this situation, U-port desktop charging stations for home or office also came into being.

The product that the author takes you to experience today is the ROCK 6U desktop charging station.

The external package of ROCK 6U desktop charging station is beautifully printed. The front is a picture of 6U, and the product name is displayed in full English. The author looked at it and found that there is no Chinese on the front. It can be seen that the original market of this product should be the foreign market. However, the author still recommends that the manufacturer increase the product name in Chinese to meet the needs of the domestic market.

The back of the 6U package is a bilingual product introduction. The 6U desktop charging station is produced by Shenzhen Renqing Technology Co., Ltd. In the certification or description at the lower left corner, you can see the signs of environmental protection and recycling.

After opening the outer package, ROCK 6U provided a product warranty card, a manual and a raffle ticket. The author tried to scrape it, but it was a pity that he didn't win the prize. 6U is located in the plastic package.

The 6U desktop charging station is located in the plastic packaging groove, which can be easily taken out. At the same time, the packaging paper box is also equipped with a snap to prevent movement.

The front groove of the plastic package is used to place the host of the 6U desktop charging station, while the bottom layer is used to place the base and power supply cable of the desktop charging station.

On the side of the ROCK desktop charging station are the slots and buckles for the ROCK logo and base, which are used to fix the desktop charging station.

The 6U desktop charging station has a card slot on the side for fixing the base. It can be seen that the shell mold of the ROCK is very good, and it also has a buckle, which corresponds to the base buckle one by one.

The six USB charging ports of the 6U intelligent charging station are arranged in a group of two from top to bottom to charge the intelligent selection, the middle two are charging ports that can charge the iPad, and the bottom two can be used for charging Android phones. At the bottom of the charging station is the blue LED indicator for power on.

The back of the ROCK desktop charging station is equipped with a 220V AC input line, and the top is the cooling hole of the charging station.

The input interface used by desktop charging station is 2P input interface, which is consistent with the input interface used by PSP charger and many panel power supplies.

The quality of the power supply wire used in the 6U desktop charging station is very high, both the quality of the input and output interfaces are good, and the wire meets many standards, including GB and IEC.

In order to place the desktop charging station well, ROCK provides a base for fixing, which can easily fix the host, convenient to use and beautiful in appearance.

The base of the desktop charging station is fixed in a card slot manner. On the basis of the card slot, buckles are provided on both sides to prevent the charging station from moving back and forth after fixing.

The bottom of the base is fixed with double-sided adhesive tape. If you want to fix it at a certain position, you can tear off the protective film and stick it.

The ROCK desktop charging station can be conveniently inserted into the base and fixed with a snap.

After the installation is completed, you can see that the blue LED indicator light at the bottom of the desktop charging station indicates that the desktop charging station is ready for operation.

The six USB output interfaces of the ROCK 6U desktop charging station are all connected to the device for charging. After charging for a period of time, you can touch the charging station intuitively with your hands. The actual heat generation is not too large.

In the case of full use, the 6U charging wire feels slightly confused when used. It is very beautiful when used independently.

The author takes out three commonly used switching power supplies, and Compared with the ROCK desktop charging station, it can be seen that the advantage of ROCK is very obvious. The three switching power supplies for charging are already very large in size, and also take up a lot of space for wiring.

The author disassembled the ROCK 6U charging station by using tools such as a utility knife. Because ROCK uses a heat sealing method rather than a snap on design, it is not recommended to disassemble the device, otherwise it is easy to damage the shell and affect the overall beauty.

The front panel of the desktop charging station adopts the snap mode, which can be pried off with a screwdriver or a pry chip, and the bottom is an LED light guide cover.

Like most PCBAs, the front of the desktop charging station is a connector, the back is a patch element, and the circuit board is sealed and insulated with 703 silica gel at key positions. Aluminum fins are used for heat dissipation of power devices.

At the output position, the PTC thermistor connected in series before the USB output is used as the self-healing fuse. Because of its positive temperature coefficient resistance characteristics, it is used as an overcurrent protection device. From the figure, we can clearly see that the 6-way USB output has a separate protection circuit.

The back of the desktop charging station is all equipped with SMD components. The top two smart charging USB ports of the desktop charging station use MA5889, which is a high-performance fast charging solution to speed up the charging time. ROCK adopts SOT23-6 package supported by dual USB ports.

At the input end, OB5269 is used to design flyback switching power supply, and SP6018 synchronous finishing chip is used to complete the final output, which ensures the high efficiency of the circuit. At the same time, optocoupler isolation is used to ensure the stable operation and safety of the circuit. Also, because of the flyback switching power supply design, the 5V/8A circuit up to 40W has smaller size and higher efficiency. At the input end, the ROCK design adopts the design of safety capacitor. The advantage of this design is that after the capacitor fails, it will not cause electric shock and will not threaten the personal safety of users. At the same time, it can be used for the filtering function of input circuit anti-interference. Because of the design of safety capacitor and isolation circuit, ROCK is easier to pass the safety certification such as CE, UL, etc. The above figure is the reference circuit of some circuits. The specific circuit will not be analyzed by the author, after all, it involves the technology of the manufacturer.

Through a week's use and disassembly analysis, the author personally believes that, ROCK 6U smart charging station can easily let users lose multiple switching power supplies, and effectively save the power outlets of the row plug. By providing a maximum charging current of 8A, a single charging port can reach a maximum of more than 2A, which can meet the charging of the pad. At the same time, it can realize the function of fast charging for mobile phones that support fast charging. The ROCK 6U desktop charging station itself has no flaws to be found fault with, but the author suddenly had a whim that since the 6U desktop charging station has been designed as a device that focuses on desktop charging, MicroUSB interface is added to the desktop charging station shell and circuit as a USB hub on the basis of possibility, It can be used as a USB expansion port.