The basic structure
Such power connectors, named after their shape, are to a large extent similar in structure to military low-need power connectors; It is also composed of contact parts, shell parts, insulating parts and timely parts. Only the shape of the shell and insulation mounting plate is rectangular or trapezoidal. Almost all applicable to low-frequency circular power connector contact forms are used for rectangular power connector, contact the office by way too similar PCB power even a hint of the main media in the print version of the name's road, but most of the torch shape because of its appearance, will also have this type of power connector to torch shape power connector; And one of the speaking forms in the rectangular power connector is also connected to the printed circuit board, so it is strictly differentiated. Due to the rapid development of this kind of power connector in recent years, a class of corresponding standard power connector type has been formed, which will be separately introduced in chapter 4.
Connecting and locking mechanism
The rectangular power connector also consists of a plug and socket; The connection and disconnection of the circuit are realized through the plug, the plug and the separation of the plug. For the rectangular power connector, the main organic cabinet type, screw collar tight type, the center screw type, buckle ring type, the secondary hanging lock type and so on. The cabinet connection is a hundred plug connection, is the power connection policy plug, solitary seat respectively installed in the electrical equipment rack (machine) and unit components, connection, rely on the movement of the unit components to achieve connection and division, this kind of power connector without locking mechanism. It has the advantages of simple processing technology, low manufacturing cost, wide application range, etc., but the connection speed is slow, which is not suitable for the occasions requiring digital transmission and fast connection. The center screw proscission structure is full of the screw sleeve and screw respectively installed on the plug, socket to realize the connector insertion and separation. Other connection modes have their own holding points, which can be selected according to the frequency of interplugging, the dynamic strength, the way of reconnecting and the speed of the seat.
Misinsertion proof structure
The power connector should be accurately positioned before the contact platform. Only after the shell of the power connector is positioned can the pin contact touch the surface of the core contact or the insulation mounting pole to ensure that the connector is correctly guided and not damaged. The anti-misbroadcast function of power connection can prevent misoperation caused by personnel neglect or environmental restrictions (such as blind broadcast station). The positioning and anti-misinsertion methods of rectangular power connector are:
A) No. to, guide sleeve positioning: connectors are respectively installed on the socket (or plugged). Broadcasting (or perch) on the guide, number set positioning guide, so that the contact in front of the broadcasting station to get the correct positioning; At the same time, the cylindrical guide sleeve has a corresponding convex bowel microdesign. Gap, etc., so that the product can not reverse plug (180 "reverse broadcast station), while through the courtyard transducers. Guide on the young or edge of the position, can be set into a variety of specifications of products, so that the different view of collaterals between the products are not inserted, so that the product has the function of preventing misinsertion.
B) Bright body positioning: the rectangular power connector with shell positioning usually has a trapezoidal holding surface. This kind of bright body can not be inserted back if the product is removed; If it is a rectangular butt surface, the bright body is often designed with the corresponding health, bei, only the corresponding specifications of products can be inserted into each other. In the circumstance where the environment is limited and the operation is not convenient, it is necessary to choose the electric evaluation link with anti-counter-broadcast and misbroadcast power acid