Pin definition and wiring method of DC socket

DC sockets are mainly used in power connector products. Connectors are an indispensable part of electronic equipment. Observing along the path of current flow, you will always find one or more connectors. Connector forms and structures are ever-changing. There are various types of connectors with different application frequency, power, object, application environment, etc. As a connector, the DC socket must ensure the smooth, continuous and reliable current flow. The connector is not limited to the current. In today's rapid development of optoelectronic technology, the carrier of the signal transmission in the optical fiber system is light, glass and plastic instead. Although the wires in the ordinary circuit are used, connectors are also used in the optical signal path. Their functions are the same as the circuit connectors. The mechanical performance is as far as the connection function is concerned. The insertion and extraction force is an important mechanical performance. I don’t know how much you know about the selection of dc sockets? It is recommended that you understand the product before selecting the type. The editor of okplazas.com will introduce you to the relevant knowledge of DC sockets!

　　 1. Pin definition of DC socket:

　　 The DC socket is composed of three pins. Pin 1 represents a common pole, which means negative pole, and pin 2 and pin 3 are the same pole, which is positive. Pin 2 uses internal power, and pin 3 uses external power. In normal use, the 2 pins and 3 pins are in the conducting state, and the internal power supply is used. When the external power supply is inserted, 3 and 2 are disconnected. At this time, the 3 pin is directly connected, and the external power supply is supplied through the 1 and 3 pins. , 2 pins are disconnected at this time.

　　 2. Wiring method of DC socket:

　　 First, the inner core is connected to the power input. Then the remaining two ends are connected to the positive and negative poles, because it is determined by the device circuit, the general circuit is the main circuit with NPN polar components. The circuit uses the negative pole of the power supply as the common ground. Therefore, the DC interface of these devices uses the negative pole as the ground terminal. Therefore, the outer jacket of the power plug should be connected to the negative pole of the power supply, and the inner core should be connected to the positive pole.

　　 Three, DC socket test and welding:

　　 Take 30V/0.5A as an example, it means that the current allowed by this socket is 0.5A, and the insulation voltage level is 30V. This 0.5A is more important because it is a larger safe current for conductor design. If it is larger than 0.5A, it will generate heat, oxidize and malfunction. And 30V is the index of insulating material, the two are different. Scrape off the oxide around the DC socket to be soldered, and apply less solder paste. It is better to use a 100W soldering iron to quickly solder, and then blow the air to quickly condense, so that the gel melts and cools immediately.

　　 Fourth, the matters needing attention of DC socket:

　　(1) If the DC socket is found to be loose during use, do not disassemble and repair it by yourself. Because the DC socket circuit is complicated, some safety accidents may occur if you don't pay attention, so you should ask professional technicians to repair it.

　　(2) Regarding the environmental requirements for the installation of DC sockets, generally do not install and use them in places that are too humid, especially in places where water vapor is heavy for households, kitchens, bathrooms, and toilets. Therefore, for the safe use of the socket, it should be considered to install a waterproof protective box for the DC socket. Otherwise, the place with heavy water vapor will cause a short circuit inside the socket and burn the socket.

　　 (3) Before use, check whether the markings on the DC socket are complete, including the power source symbol, rated current value, and related warnings.

　　(4) Regarding the rated power index of the DC socket, generally do not install it and use it with some relatively high-power electrical equipment, otherwise once it is working and running, the internal load of the socket will be unloaded, and the socket will be more easily damaged. Therefore, electrical equipment with different power should be selected according to the corresponding DC socket.

(5) Regarding the installation and application of DC sockets, please do not arbitrarily change the line points of the socket rated connection, otherwise if you connect the wrong line point because of your unprofessionalism, it will easily cause hidden troubles in the line. This may damage the DC socket.

(6) DC sockets should pay attention to their specifications and use requirements. Even if the sockets of the same specification, the specifications on the plugs are divided into several types. If the application of the socket does not ensure that the socket is suitable, it is easy to cause the socket to cause failure occur. In addition, there must be no looseness in the pair of plugs, otherwise the line points inside the socket cannot be energized and transmitted.

　　 The above is the explanation about the pin definition of the DC socket, the wiring method of the DC socket, the test and welding of the DC socket, etc. If you have any questions, please consult our online customer service staff. Our products are not only complete specifications, affordable prices, but also quality assurance, fast delivery, everyone is welcome to come and buy!