First, the birth of industrial plugs and sockets

Industrial plugs and sockets are common and common electrical accessories for everyday use. It can be said that plugs and sockets are the bridge that connects appliances and power sources. The invention of electricity, especially the later emergence of electrical appliances, urgently needed a series of connectors to cooperate with it to facilitate the use of electrical energy. There are no plugs, sockets and other products for a long time. For electrical connections, one can only twist the wires on the power terminals. However, with the advent of a large number of electrical appliances, it is too inappropriate to twist the wire every time, and a large number of non-people have also joined the ranks of use, which has caused many safety problems. Causing serious electric shock accidents. This puts forward the requirement of convenient and fast electrical connection. In this case, plug and socket products come into being.

Second, the formulation of plug and socket product standards

Early plugs and sockets were very simple and not uniform in size. Another city will not be able to plug into a local outlet. Therefore, countries around the world have successively formulated their own unified plug and socket standards. In China, in 1967, Guangzhou Electrical Appliance Research Institute formulated China's plug and socket standard GB1002-67 "single-phase plug and socket type, basic parameters", and in 1950, United Kingdom promulgated BS 546:1950 for circuits below 250V with two plugs, sockets and converters with ground contacts.

The promulgation of these mandatory standards has unified the types and sizes of various internal plugs and sockets, and has also promoted the development of the industry in a sense.

Third, the development process of the industry

Industrial plugs and sockets are constantly evolving, initially only to meet the needs of simple electricity. For example, from the 1950s to the end of the 1970s, there were bakelite electrical appliance manufacturers in various provinces and cities in China to produce plugs and sockets. At that time, the plug and socket products were all black phenolic resin powder (i.e., electric jade powder). Later, with the improvement of people's living standards, the enhancement of consciousness, and the need for beauty, people have plugs and sockets and put forward higher requirements.

Fourth, the rise of all kinds of plugs and sockets

For example, in order to prevent children from being electrocuted by inserting items such as small sticks into the socket, a protective door needs to be installed in front of the socket; There's a lot of water, so there are plugs and sockets that are waterproof and splash-proof; For the beauty and harmony of the room, there are also various wall sockets with colored plates and so on. At present, a large number of intelligent, remote control, energy-saving switch and socket products emerge in endlessly

For example, switches and sockets with remote control and timing functions; Intelligent lighting control system with centralized control, scene control, remote control and other functions; Intelligent home appliance control system with programming control, remote control and other functions Grounding sockets, converters, industrial plug sockets, splash-proof switch sockets, waterproof switch sockets, explosion-proof switch sockets, leakage protection sockets, lightning protection sockets and other new product competition.

Fifth, the emergence of humanized products

The electrical accessories of plugs and sockets have also developed from a single function to a combination of function and decoration, and more and more pursuit of operability and comfort. The emergence of these products indicates that the development of plug and socket products will become more and more humanized in the future.