When using the connector, you must use and save it correctly to avoid unnecessary trouble.

       When receiving the connector, we have to carefully observe the outer packaging to see if there is any obvious damage, and also to see if there will be any damage to the connector itself, etc., we must ensure that we see it. The connector is intact, so that it will not affect our use of the connecting machine.

       When the connector is not used temporarily, do not place the connector at will, especially in a place with sunlight, so that if you forget to place it due to negligence, the quality of the connector will be damaged due to long-term sunlight exposure, which will affect the quality of the connector. Its use may even cause safety accidents, so we must carefully remember where the connector can be stored, and must not cause safety accidents due to negligence.

       The connector cannot be placed in a high temperature place. Continuous high temperature or high humidity will damage the connector, especially in an environment with chemicals, the connector will be corroded, and the outer metal protective layer will lose its protection. The effect of , resulting in the destruction of the current line inside, without the normal conduction function, it becomes a waste.

       When you need to move the connector, don't panic, be careful to avoid the connector touching a hard object, causing damage to the connector, and it should not be placed under heavy objects to avoid crushing the connector.

       The connector also has an enemy, that is, grease-like objects. During storage or use, if it comes into contact with grease-like objects, the connector will also lose its original function and become an obstacle that affects our work.

In terms of the use environment of the connector, the temperature should be within a suitable range. If the temperature is too high, the components will be damaged. If the temperature is too low, it will also affect the function of the connector, and even cause some unnecessary damage due to cracks in the external insulation system. The key is that it will directly affect the efficiency of work when it is used.

The use of connectors in a humid environment is also very influential, and it is easy to cause short circuits and power connections. In this case, it is necessary to strictly seal the connectors and other components to ensure safety. can be used.

When the aviation connector is used under the condition of high altitude and low air pressure, it needs to be dealt with, especially in the case of abnormal voltage, the principle of use must be considered after necessary withstand voltage treatment, so as to be safer, the connector Using the function to play will also have good results.

It is even more important to use connectors under corrosive environmental conditions. Corrosion-resistant treatment of the insulating layer is not only a problem of functioning, but also may cause unnecessary accidents. Production safety is the fourth priority to ensure production safety. , it is the premise and guarantee to provide a good use environment for the connector.

Whether it is a tool or equipment, even a lifeless machine will be rewarded for the user's love. If you don't love it, it will be difficult to achieve the best use effect, let alone longer than others. As an electrical component, the aviation connector must be used safely during use, and its maintenance and maintenance should be done well. It is the most scientific way to improve the use efficiency and prolong the service life.

IP stands for Connector Ingress Protection.

The protection level is the classification of the sealing protection level of the electrical equipment to prevent foreign objects (such as tools, dust, fingers) and moist gas from entering its enclosure.

Protection class - 1st digit

The first digit of the IP code indicates the degree of protection against human contact with moving parts and the degree of protection against solid foreign objects entering the enclosure of the device.

0 - no special protection

1 - Prevent larger parts of the body (such as hands) or prevent the entry of solid substances larger than 50mm in diameter

2 - Prevent objects not exceeding 80mm in length and 12mm in diameter from entering

3 - Prevent tools, wires, etc. from entering objects with a diameter or thickness greater than 2.5 mm

4 - Prevents the entry of solid matter greater than 1.0 mm in diameter or thickness

5 - Prevent dust accumulation from affecting equipment operation

6 - Completely dustproof

Protection class - 2nd number

The second number indicates the degree of protection against the entry of water in various forms (such as dripping, spraying, immersion, etc.) on the device enclosure.

0 - no special protection

1 - Prevent water from dripping vertically

2 - Prevent water from dripping at an inclination of not more than 15°

3 - Prevent water from spraying in

4 - Prevent water from splashing in

5 - Prevent water from being injected from the nozzle

6 - Prevent the entry of a large amount of seawater or water with jet pressure

7 - Prevent water from entering during short immersion

8 - Protection against water entry during a complete, continuous submersion (submerge at a depth of at least 1 meter for 15 minutes).

The structure of waterproof connectors is generally divided into: metal contact conductor and shell metal.

The difference between metal and plastic shells:

1. Mechanical life

 The mechanical life of the waterproof connector refers to the life of the number of times of plugging and unplugging, and the industry standard usually specifies 500 to 1000 times. When reaching the specified mechanical life, the contact resistance, insulation resistance and withstand voltage of the waterproof connector should not exceed the specified standard values, which is not much different from the metal shell and the plastic shell.

 2. Electrical properties

 The rated voltage, rated current, contact resistance, insulation resistance, etc. are in accordance with the specified standard values, which is the same as the metal and plastic shell.

3. Environmental parameters

 The environmental parameters mainly include ambient temperature, humidity, sudden temperature change, atmospheric pressure and corrosive environment. The environment in which the waterproof connector is used, stored, and transported has a significant impact on its performance, so the corresponding metal shell must be selected according to the actual environmental conditions, which is better than plastic.

4. Termination method

 The termination method refers to the connection method between the hardware contacts of the male and female connectors of the waterproof connector and the wires and cables.

     Comprehensive analysis, in addition to the need for the shielding function of the connector, the performance of the metal and plastic shells is not very different in all aspects. Compared with metal shell, plastic has lower cost and more reasonable structure.

1. Connector: A separable element (except an adapter) that is usually attached to a cable or device for electrical connection of a transmission line system.

2. RF connector: It is a connector used in the RF range.

3. Video: Radio waves with a frequency range between 3HZ∽30MHZ.

4. Radio frequency: radio waves with a frequency range of 3000HZ∽3000GHZ.

5. High frequency: Radio waves with a frequency range between 3MHZ∽30MHZ.

6. Coaxial: The inner conductor has a dielectric support, and the structure can obtain the minimum internal reflection coefficient within the frequency range used in the measurement.

7. Triax: A transmission line consisting of three layers of concentric conductors with a common axis and insulated from each other.

8. Grade: The level of the connector in terms of mechanical and electrical precision, especially in terms of the specified reflection coefficient.

9. Universal Connector (Class 2): A connector manufactured with the widest allowable dimensional deviation (tolerance), but still guaranteeing the minimum specified performance and intermateability.

Note: The requirements for reflection coefficient can be specified or not specified.

10. High-performance connector (Class 1): A connector that specifies the limit value of the reflection coefficient according to the frequency change. Usually, the specified dimensional tolerance is not stricter than the corresponding Class 2 connector, but it is necessary to ensure that the connector meets the reflection coefficient. It is the manufacturer's responsibility to select tighter tolerances when required.

11. Standard Test Connector (Class 0): A precision-manufactured specific type of connector used for reflection coefficient measurements on Class 1 and Class 2 connectors, with negligible errors in measurement results.

NOTE: Standard test connectors are usually part of different types of adapters, and adapters and precision connectors form part of the test equipment.

12. Seal

12.1 Sealed connector: a connector that can meet the specified gas, moisture or liquid tightness requirements.

12.2 Barrier seal: A seal that prevents gas, moisture or liquid from entering the interior of the connector housing along the axial direction.

12.3 Panel sealing: Prevent gas, moisture or liquid from entering the seal between the fixed or adapter housing and the panel through the mounting hole.

       NOTE: Seals are usually available as separate products.

12.4 Mating face seal: A seal at the interface that prevents gas, moisture or liquid from entering a pair of mating connectors.

12.5 Hermetic sealing: The sealing that meets the requirements of test Qk in IEC60068-2-17 "Basic Environmental Test Procedures Part 2: Test-Test Q: Sealing".

Aviation plugs are an emerging product in connection equipment, and this type of connector has a wide range of applications in the market. What are the advantages of aviation plugs?

1. Mass production

The production process of aviation plugs has been gradually improved, and in the process of assembly, the installation process of electronic products has been gradually simplified, and the mass production process is also being simplified.

2. Easy to maintain

During the use of the aviation plug equipment, if a certain electronic component fails, if a connector is installed, the components of the component can be made more quickly and slippery. The advantage of the aviation plug is that it is easier to maintain.

3. Easy component update

With the continuous development of modern technology, components can be updated in equipment equipped with even machines, and then, components can be replaced at this time, mainly using new and perfect components to replace them. When replacing, the components can be upgraded to ensure that the product can be more perfect after it is launched.

4. Widely used

Engineers specializing in aviation plugs can use the latest system composed of components when designing and manufacturing new products. At this time, the flexibility of connectors can be improved, and the flexibility of product design can be further improved. .

In short, it is precisely because of the obvious advantages of aviation plugs that in the construction machinery industry, this kind of aviation plug artistic conception is widely used, auto parts production lines, electrical and electrical systems, instrumentation, minerals, oil and gas drilling anticorrosion Engineering wind energy and solar energy, etc., as well as automatic substations and other fields have been widely used, more and more meet the needs of customers, and have been loved by customers.

In this era of advanced technology, the connector industry market is booming, especially in the growing market demand for push-pull self-locking connectors, and the quality requirements of various industries for this type of connector equipment are also increasing. Therefore, in the production of connectors When it comes to products, we must pay attention to several aspects, because only the products with high quality and high precision can be favored by more customers and enterprises. What are the main factors that affect the performance of push-pull self-locking connectors?

      First of all, the size of the voltage used by the push-pull self-locking connector: because the thermal effect accelerates the chemical reaction in the film area, it has a certain repairing effect on the film layer, so the size of the voltage used is very important for the application of the push-pull self-locking connector. big impact.

      Secondly, the size of the current of the push-pull self-locking connector: when the current exceeds a certain value during use, the Joule heat generated by the energization at the tiny points on the surface of the contact will soften or melt the metal, which will affect the concentrated resistance, so that the Contact resistance becomes smaller.

      Then it is the state of the surface of the push-pull self-locking connector: due to the deposition of oil, dust, etc. on the surface of the contact piece, a relatively loose film is formed, so that particulate matter is easily embedded in the unevenness of the contact surface, so that the resistance of the contact piece If it increases, the contact area of the contact piece becomes smaller, which affects the normal use of the push-pull self-locking connector.

      Finally, there is the positive pressure of the push-pull self-locking connector: the positive pressure in the push-pull self-locking connector refers to the force generated by the surfaces of the contacts contacting each other and perpendicular to the contact surfaces. With the increase of the positive pressure, the area and number of contact micro-points will gradually increase, and the contact micro-points will transition from elastic deformation to plastic deformation. The above are the four major factors that affect the performance of push-pull self-locking connectors. Manufacturers must pay attention to them in the production process.

Circular connectors are often called industrial connectors, because this equipment is generally used in industry. The shape and structure of circular connectors are generally cylindrical, and the connector on its mating surface is circular. shaped.

      Circular connectors are used for interconnection between devices. Including circular power connector, circular signal connector. It consists of a plug and a socket, and the circular connector consists of a shell, a lock sleeve, a reed, a pin, a pin, a terminal, a waterproof gasket, a dust cover, etc. The cylindrical structure of the circular connector is inherently robust and provides greater strength than any other shape. The shell is made of zinc alloy or PBT engineering plastic material. The connection adopts 1/4 quick bayonet connection, plug-in connection, latch connection, quick-plug connection, threaded connection, push-pull connection, etc.

      Circular connectors are divided into crimping, welding and screw locking. The jack adopts the wire spring structure, and the pin and the jack lead are in the form of crimping and welding; the product structure is reliable and the operation is convenient. According to the user's needs, the plug and socket can be installed with pins or holes. The product has the characteristics of small size, light weight, quick connection, quick separation and so on.

      Circular connectors are widely used in electrical signal connection between instrumentation and electronic equipment, such as LED screen industry, LED lights, audio-visual equipment, medical equipment, industrial control, AV system. The circular connector makes the work easier and more convenient, and the operation is safer and more stable.

       The electrical performance of the waterproof plug includes four aspects: contact resistance, insulation resistance, current and electrical strength. Next, let's analyze the two important electrical properties of the waterproof plug, the contact resistance and the insulation resistance.

       1. Contact resistance of waterproof plug. Contact resistance can be seen everywhere in the electrical performance application of waterproof plugs. A high-quality and durable waterproof plug has the characteristics of low and stable contact resistance. The contact resistance of the waterproof plug fluctuates greatly, ranging from a few milliohms to tens of milliohms, and the parameters depend on the actual performance and characteristics of the waterproof plug.

       2. Insulation resistance of waterproof plugs: Insulation resistance is also an important indicator of the electrical performance of waterproof plugs. Insulation resistance and contact resistance are two vaults for the electrical performance of waterproof plugs, which together determine the resistance performance of waterproof plugs. The specific function of insulation resistance is an important indicator to measure the insulation performance between the contact parts of the waterproof plug and between the contact parts and the shell. . The insulation resistance of waterproof plugs can range from hundreds of megohms to several gigaohms, depending on the actual situation.

       There are many other electrical properties of waterproof plugs, such as electric strength or withstand voltage, current, electromagnetic interference leakage attenuation (usually in the range of 100MHz~10GHz frequency) and so on.

      If the RF coaxial waterproof plug is used, its electrical performance also includes characteristic impedance, insertion loss, reflection coefficient, voltage standing wave ratio (ie VSWR), etc.

      In recent years, with the continuous development of science and technology, the waterproof plug industry has also continued to progress, and the corresponding digital technology has also matured step by step in people's expectations and witnesses. At the same time, in order to transmit high-speed digital pulse signals through waterproof plugs, a series of new waterproof plugs, namely signal waterproof connectors, have appeared in the industry. At the same time, this kind of special waterproof plug also has great advantages and breakthroughs in electrical performance. For example, in addition to characteristic impedance, its electrical performance also has some new electrical indicators, such as crosstalk electrical performance (crosstalk), transmission delay Special electrical properties such as performance (delay) and time delay (skew).

      There are other electrical properties of waterproof plugs, which will not be explained here. For other basic properties of waterproof plugs, such as mechanical performance or environmental performance, please pay attention to our waterproof plugs.

The key to power connector design lies in the design of the contact points formed by the female terminal and the male pin. If the design, process and material selection, and electroplating layer, it can lead to unsatisfactory contact points or failure to form contacts. On the contrary, excessive clamping positive force will cause excessive wear on the surface of the electroplated layer of the connector and shorten its mechanical life, that is, the number of times the connector is plugged and unplugged. Contacts are designed with lathe round pins and terminals, stamped terminals, etc. The materials of the surface coating are gold, palladium, nickel, silver, tin, etc. Silver is highly conductive, but tends to discolor, especially in sulfur-containing environments. If it is slight, it will only affect the appearance, and if it is serious, it will reduce the electrical conductivity. Palladium-nickel has high hardness and low porosity, so its corrosion resistance is good. Gold has high chemical stability, low hardness and high cost. In contrast, each has its pros and cons.

In the field of connectors with waterproof performance, we all know that waterproof connectors can be divided into waterproof plugs and waterproof sockets. They exist together like a pair of twin brothers. Generally speaking, only when they coexist and connect with each other will they play the meaning of their existence. Waterproof plugs and waterproof sockets do not refer to ordinary plugs and sockets used in ordinary living rooms. Such plugs and sockets are not waterproof, and of course they do not need to be waterproof. They are only provided for use in general environments (such as indoors, most buildings). etc.), it cannot be used in an environment that is in contact with water, otherwise the water will penetrate into the socket and cause an electrical safety accident.

        There is one biggest difference between waterproof plugs, waterproof sockets and ordinary household sockets and sockets: ordinary plugs and sockets do not need to be bundled and bought together. Usually ordinary plugs are an indispensable part of household appliances. When buying household appliances It is equipped with it, and the ordinary socket is purchased and installed on the wall (that is called a wall socket), or it is directly used for household appliances in the form of dragging wires. ; And waterproof plugs and waterproof sockets are usually not purchased and used separately, because they are composed of male and female headers of the same size, and the so-called waterproof effect can only be achieved when the male and female headers are docked with each other.

        The waterproof plugs and waterproof sockets developed and sold by Zhongxiang Company are specially developed according to the diversified needs of modern industries and are used for social development. Provide high-speed, no attenuation, safe and reliable signal transmission. For example, the RJ45 waterproof connector developed and produced by our company has the transmission function of electrical signals. It is a new type of waterproof plug specially tailored for the waterproof connection of the Ethernet network. It requires complex installation engineering, and only needs simple male and female docking to achieve fast signal connection, which is convenient and fast.

    With the gradual acceleration of the process of social modernization, the application fields of waterproof plugs and waterproof sockets are getting larger and larger, and the application in the industrial field has become an irreplaceable trend and trend. Waterproof plugs and sockets can be used in LED street lights, LED display screens, ship lighthouses, communication engineering, electromechanical machinery, etc.

The performance index of the waterproof connector is expressed by two letters starting with IP followed by two digits, which is simply expressed as "IPXX". The two Xs represent dustproof and waterproof respectively. The higher the value, the better the dustproof and waterproof effect. Up to 6 and 8. In the industry, the dustproof rating of waterproof sockets can generally reach the highest level, which is 6, and the waterproof effect cannot be generalized, usually 6, 7 or 8.

The selection method of aviation plug terminals The connector is an electromechanical element that connects the electrical circuit, so the electrical parameters of the connector itself are the first issue to be considered when choosing a connector. Correct selection and use of electrical connectors is an important aspect of ensuring circuit reliability.

1. Requirements for electrical parameters: Connectors are electromechanical components that connect electrical circuits. Therefore, the electrical parameters of the connector itself are the first issues to be considered when choosing a connector.

2. Rated voltage and current: With the same withstand voltage index of aviation plug, different maximum working voltages can be used according to different use environments and safety requirements. To limit the rated current, in fact, limit the temperature rise inside the electrical connector not to exceed the specified value of the design. The problem to pay attention to when choosing is: For multi-core electrical connectors, the rated current must be derated.

3. Installation method and shape: the shape of the aviation plug terminal is ever-changing, the user mainly depends on the straight, curved, outer diameter of the wire or cable and the fixing requirements with the shell, volume, weight, whether to connect the metal hose, etc. To be selected, the electrical connectors used on the panel should also be selected from the aspects of appearance, shape, color and so on.