In almost all electrical and electronic products, connectors have become an essential element for connecting components. Connectors exist not only for the purpose of disconnecting, but also as a carrier to provide current and signals for the product.

In the use of connectors, many designers of electronic systems have experienced similar experiences: the use of cheap connectors, the end of the expensive, and regret. Wrong selection and use of connectors can result in system failure, product recall, product liability cases, circuit board damage, rework and repair, which can lead to loss of sales and customers. Therefore, in the electronic product design, must choose a suitable connector for the electronic device, otherwise, a small connector let the whole system can not operate the situation is let a person feel very collapse.

When people choose connectors, they will first consider the cost control, the other is the high quality, high stability, and the design characteristics of the connector itself. In order to avoid electronic designers in the design process to underestimate the importance of connectors, penny wise and pound foolish, south China professional connector agent guangzhou haolong electronics engineer specializing in the innovative design of ERNI connector to provide some advice:

First: double bar design idea. In the ERNI connector series, the double bar design idea is throughout. Figuratively speaking, double pole design can be said to kill two birds with one stone. The optimized terminal design ADAPTS to high speed signal transmission and provides higher directional tolerance. In terms of inductance, capacitance, impedance, etc., the double bar terminals are smaller than the box terminals for high-speed applications, and are optimized to achieve the minimum discontinuity. The two-bar design allows multiple connectors to be placed on a single circuit board without plugging or short-circuiting problems, without the need for a large number of signals on a single connector. Simple twin-bar wiring can save space, make the connector smaller, welding pin detection can be simplified. Let's say I put 12 on a board. It also reduces rework costs. Practical applications such as telecommunications end-user equipment.

Second: no col bend pin design in assembly process. Traditional stamping due to improper handling will cause bending or deformation of pins, bending process will cause capillary cracks, from the long-term product is not desirable, but also affect the circuit performance and cost. ERNI adopts the direct stamping of the corners. The stamping terminals can avoid the capillary cracks caused by the bending process and ensure the complete electromechanical connection. Pin coplanarity is 100%, controlled to tolerance ±0.05mm, and 100% coplanarity detection of surface-mounted pins ensures the reliability of the circuit board assembly process, ensures good welding, improves the product efficiency and reduces the cost. And improve the fastness of the right Angle connector, to prevent the connector due to improper operation and damage, with "unbreakable" to describe very appropriate. Especially suitable for inkjet printer controller, InterfaceModule module interface.

Third: high maintenance of the surface paste design. For SMT products, it is generally considered that the retention force on the board is very poor. Is it true that the PCB retention force of surface attachment end is lower than that of through hole end? The answer is: not necessarily. The retention of PCB can be effectively improved by design improvement. If the three aspects of welding bracket, surface to pin hole (micro hole), large welding pad are superimposed, the retention force can be improved. In fact, even the I/O connector can also use surface mount pin. This can be figuratively compared to "taking root". For example, in the design of X-ray machine, ultrasonic scanner, robot Ethernet switch.

Fourth: rugged design. To determine the fastness of the connector, also allow the use of flat splicer tools with plates fixed to the housing for increased robustness, better manufacturing process, and increased production. In one word, "rock solid." Specific applications such as positron emission tomography, railway vehicles such as embedded systems.

Fifth: high current, small spacing design. With the miniaturization of automotive electronics and consumer electronics, the design concept of high current and small spacing needs to be considered.

Sixth: advanced lock design. ERNI adopts double lock design to meet different requirements. The forward lock is designed for strong vibration application, which is very suitable for automobile and subway applications. The friction lock is designed for general vibration application. Double lock double safety insurance ensures reliable connections and no special tools are required for field removal (repair/replacement) of cables. Suitable for monitoring instrument, LED headlights and other design.

Connector plays a vital role in the design of the entire electronic system. When engineers choose electronic components, they not only need to pay attention to the chip technology, but also need to pay attention to the selection of peripheral devices, so as to make the system run smoothly and get twice the result with half the effort.