Электрический разъем — зажимы для проводов, инструменты для кабелепровода

China electrical connector- Wire Terminals supplier, custom and OEM electrical connectors.
В дополнение к соблюдению общих требований к характеристикам электрического соединения, электрический разъем должен иметь хороший контакт, надежная работа, и простота обслуживания. Надежность или нет его работы напрямую влияет на нормальную работу цепи и влечет за собой безопасность всего электроприбора..
For this reason, the circuit has very strict requirements on the quality and reliability of the electrical connector. It is also because of the high quality and high reliability of electrical connectors that they are widely used in military systems such as electrical appliances, aviation, aerospace, and national defense. Commonly used classification methods for electrical connectors include shape, structure, and use.

5.08мм сильноточная европейская розетка 348, 3*16 сколоть три ряда 48П

15A male-female new energy high current battery connector

Терминал быстрого подключения один в один выход, два выхода, трое из

Classification of electrical connectors
Electrical connectors are classified by shape
Circular electrical connectors, rectangular electrical connectors.
Due to the characteristics of its own structure, circular electrical connectors are the most used in military equipment (aviation, aerospace). Rectangular electrical connectors are more commonly used on printed circuit boards of electronic equipment due to their simple structure.

Classified by structure
According to the connection method: резьбовое соединение, bayonet (quick) connection, card lock connection, push-pull connection, in-line connection, и т. д.;
According to the terminal connection form of the contact body: crimping, welding, winding; screw (cap) fixing;
According to the use environment: temperature-resistant, cold-resistant electrical connectors and ordinary electrical connectors.

Classification by purpose
RF electrical connector
Hermetic electrical connectors (glass sealing)
High temperature electrical connector
Automatic fall-off separation electrical connector
Filter electrical connector
Composite electrical connector
Airport power connector
Electrical connectors for printed circuit boards, и т. д..

The structure of the electrical connector
The electrical connector consists of a fixed-end electrical connector, that is, a female contact (referred to as a socket), and a free-end electrical connector, that is, a male contact (referred to as a plug). The socket is fixed on the electrical parts through its square (round) plate (some of them also adopt welding method). The plug is generally connected to the cable, and the plug and socket are connected through the connecting nut.
The electrical connector is composed of three basic units: the shell, the insulator, and the contact body.

electrical connector housing
The electrical connector housing refers to the shell of the plug socket, the connecting nut, and the tail attachment. The function of the shell is to protect the internal parts of the electrical connector such as the insulator and the contact body (the general name of the pin and the jack) from being damaged. The positioning keyway above ensures the positioning of the plug and socket. Connecting nuts are used for plug socket connection and separation. Tail attachments are used to protect the conductor from damage at the contact termination and to secure the cable. The casing also has a certain electromagnetic shielding effect.
The shell is generally made of aluminum alloy processing (machining, cold extrusion, die-casting). Steel connector shells are mostly used for glass sealing and high temperature resistant electrical connectors.

Insulators for electrical connectors
It consists of a pin insulator and a jack insulator. Interface sealing body, sealing line body and other components. It is used to keep the pin socket at the set position, and to electrically insulate each contact body and each contact body from the housing. Sealing measures are obtained by adding an insulator and an interface sealing body to improve the environmental resistance of the electrical connector.
In order to adapt to the product’s high temperature resistance, low temperature resistance and flame retardancy, it ensures that the geometric dimensions of the parts are stable and reliable. Insulators are mostly molded from thermoset plastics. The interface sealing body and line sealing body are formed by molding silicon rubber.

contacts of electrical connectors
The contact body includes a male contact and a female contact, sometimes also called a pin socket. The connection methods are divided into welding type, crimping type, press-in type and winding type, и т. д., to realize circuit connection.
The pin socket is a key component of the electrical connector, which directly affects the reliability of the electrical connector. Most of the pin sockets are machined from elastic copper alloy materials with good electrical conductivity. The surface is silver-plated and gold-plated to achieve the purpose of small contact resistance and anti-corrosion. Jacks generally include split slot jacks, wire spring jacks, crown spring jacks and punching jacks.
The structural features are: environment resistance; bayonet type (quick) connection; multi-key connection (wrong insertion); contact body and wire crimp connection. The shell plus shielding ring ensures 360° electromagnetic interference shielding capability.

Wire-to-Wire Connector

Board-to-Board Connector

Wire to Board Connector

Safety parameters of electrical connectors
Insulation resistance
Insulation resistance refers to the resistance value that occurs when a voltage is applied to the insulating part of the connector to cause leakage current in or on the surface of the insulating part. В основном на это влияют такие факторы, как изоляционные материалы., температура, влажность, и загрязнение. Insulation resistance values provided on connector samples are generally index values under standard atmospheric conditions. В определенных условиях окружающей среды, значение сопротивления изоляции упадет в разной степени. Кроме того, следует обратить внимание на значение испытательного напряжения сопротивления изоляции.. По сопротивлению изоляции (МОм) = напряжение, приложенное к изолятору (В) / ток утечки (мкА) применять разное напряжение, есть разные результаты. In the test of the connector, the applied voltage generally has three levels of 10V, 100В, и 500В.

Rated voltage
The withstand voltage is between the mutually insulated parts of the contact pair or between the insulated part and the ground. The critical voltage that can withstand higher than the rated voltage within a specified time without breakdown. На это в основном влияют расстояние между контактными парами, путь утечки и геометрия., материал изолятора, температура и влажность окружающей среды, атмосферное давление.

Mechanical life
1) The mechanical life of the connector refers to the plugging life, который обычно обозначается как 500 к 1000 раз. При достижении указанного механического срока службы, контактное сопротивление, insulation resistance and withstand voltage of the connector should not exceed the specified value. Строго говоря, the mechanical life should have a certain relationship with time, 500 раз в 10 лет и 500 раз в 1 year are obviously different.

Number of Contact Pairs and Pinhole Properties
Во-первых, количество пар контактов может быть выбрано в соответствии с потребностями схемы, while considering the size of the connector and the total separation force. Чем больше количество контактных пар, конечно, чем больше объем, и тем больше общая сила отрыва. В некоторых случаях, когда надежность высока и допускается объем, две пары контактных пар могут быть соединены параллельно для повышения надежности соединения.
In the plug and socket of the connector, булавки (мужские контакты) и валеты (женские контакты) как правило, взаимозаменяемы. В реальном использовании, его можно выбрать в зависимости от условий зарядки на обоих концах вилки и розетки. Если розетку необходимо часто заряжать, вы можете выбрать розетку с разъемом, because the live contacts of the socket with a jack are buried in the insulator, что относительно безопасно.

Вибрация, Shock, Collision
2) Mainly consider the electrical continuity of the contact pair when the connector vibrates, impacts, and collides under specified frequency and acceleration conditions. В условиях динамического напряжения происходит мгновенное разъединение контактной пары.. Указанное время перехода обычно составляет 1 мкс., 10мкс, 100мкс, 1мс и 10 мс. Следует обратить внимание на то, как судить о мгновенном выходе из строя контактной пары.. It is currently believed that when the voltage drop across the closed contact pair (контакт) превышает 50% электродвижущей силы источника питания, можно определить, что замкнутая контактная пара (контакт) провалился. То есть, есть два условия для определения того, произошло ли мгновенное прерывание: продолжительность и падение напряжения, и то и другое незаменимо.

connection method
3) The connector is generally composed of a plug and a socket, where the plug is also called a free end connector, and the socket is also called a fixed connector. Подключение и отключение цепи осуществляется вилками., розетки и стыковка и разделение, поэтому производятся различные способы подключения вилок и розеток. For circular connectors, в основном есть три метода: резьбовое соединение, bayonet type connection and pin-type connection. Среди них, резьбовое соединение является наиболее распространенным.. It has the advantages of simple processing technology, low manufacturing cost, and wide application range, but the slow connection speed is not suitable for occasions that require frequent plugging and fast connection.
The bayonet type connection is faster because of the longer leads of the three bayonet slots, but it is more complicated to manufacture and the cost is higher. The pin connection is the fastest of the three connection methods. Не требуется совершать вращательные движения., но необходимо только выполнить линейное движение для реализации функций соединения, разделение и блокировка. Since it is a direct push-pull connection, it is only suitable for connectors with low total separation force. Generally more common in small connectors.