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Development of magnetic Preservation relay Technology
Mar 11, 2018

With the rapid development of computer technology, modern communication technology, photoelectron technology and space technology, new requirements for relay technology are put forward, and the development of new technology and technology undoubtedly promotes the development of relay technology.

The rapid development of microelectronic technology and Super large scale IC has put forward new requirements for relay. The first is miniaturization and flaky. such as the IC package of Military TO-5 (8.5x8.5x7.0mm) relay, it has a very high vibration resistance, can make the equipment more reliable; the second is the combination and multi-function, can be compatible with IC, can be built-in amplifier, requiring sensitivity to micro-tile class; The third is total solidification. Solid relays are highly sensitive and can prevent electromagnetic interference and RF interference.

The popularization of computer technology makes the demand of microcomputer relay be increased, and the relay with microprocessor will develop rapidly. In the early 80, the United States digital time relay can be used to command the relay control, the combination of relay and microprocessor development, can form a compact and perfect control system. Computer-controlled industrial robots are currently growing at a rate of 3.5% a year, and now computer-controlled production systems have been able to produce a variety of low-cost relays on a production line, and can automate a wide range of operation and testing tasks.

The development of communication technology has far-reaching significance to the development of relay. On the one hand, the rapid development of communication technology makes the application of the whole relay increase. On the other hand, optical fiber communication, optical sensor, optical computer and optical information processing technology will appear as the main arteries of the future information society, and new relays, such as fiber relay, tongue reed fiber switch, etc.

Photoelectron technology will have a great effect on the relay technology, and in order to realize the reliable operation of optical computer, the bistable relay has been produced.

In order to improve the reliability of aviation and aerospace relays, the failure rate of the expected relays should be reduced from 0.1PPM to 0.01PPM; The temperature must reach 200 ℃ above, the vibration resistance requirement is higher than 490m/s, simultaneously should be able to withstand 2.32x10 (4) c/kg of alpha radiation. In order to meet the requirements of space, we must strengthen the reliability research and establish a special high reliable production line.

A new type of special structural materials, novel molecular materials, the development of high performance composite materials, photoelectron materials, as well as oxygen-absorbing magnetic materials, temperature-sensing magnetic material and amorphous soft magnetism are of great significance to the development of new magnetic preservation relays, thermal relays and electromagnetic relays, and there will be a new principle and new effect relay.

With the improvement of micro-and flake technology. The relays will be developed in a two-dimensional, three-dimensional miniature and surface mount with a few millimeters; now some of the international manufacturers of Relays, volume only 5-10 years ago 1/4~1/8. Because the electronic machine reduces the volume, needs the height does not surpass other electronic components the smaller relay. Communication equipment manufacturers to the demand for intensive relays more eagerly, Japan Fujitsutakamisawa Company produced a BA series of ultra dense signal relay size only 14.9 (W) x7.4 (D) x9.7 (H) mm, mainly for fax machines and modems, can withstand 3kV fluctuation voltage. The company introduced the as series Surface mount Relays only Volume (W) x9 (D) x6.5 (H) mm.

In the field of power relays, it is especially necessary to have safe and reliable relays, such as high insulating relays. Japan Fujitsutakamisawa launched the JV series Power Relay contains five amplifiers, the use of high insulation small section design, the size of 17.5 (W) x10 (D) x12.5 (H) mm. The insulation performance of the movement and the outer rim is 5kV with an enhanced insulation system. The power consumption of the MR82 series Power relays introduced by NEC is only 200mW.

In the relay built-in various amplification, delay, contact point jitter, ARC suppression, remote control, combinational logic circuit can make it more functions. With the breakthrough of SOP Technology (Smalloutlinepackage), it is possible for manufacturers to integrate more and more functions. The combination of relays and microprocessors will have a wide range of specialized control functions to achieve high intelligence.

The rise of new technology will promote the development of various relays with different principles, different properties, different structures and uses. In the progress of science and technology, demand traction and the development of sensitive and functional materials, special relays, such as temperature, RF, high voltage, high insulation, low thermoelectric potential and non-electric power control relay performance will be improved.

Electromagnetic relay (EMR) from the initial use of telephone relays, has been more than more than 150 years of history. Along with the development of the electronics industry, especially the the early 1970s optical coupling technology breakthrough, the solid-state relay (SSR, also known as electronic relay) has sprung up. Compared with the traditional relay, it has the advantages of long life, simple structure, light weight and reliable performance. Solid-State relays have no mechanical switches and have important characteristics such as high compatibility with microprocessors, fast speed, impact resistance, vibration resistance and low leakage. At the same time, because this product does not have mechanical contact, does not produce electromagnetic noise, so do not need to attach such as resistors and capacitors and other components to keep mute. Traditional relays, however, require these additional components, so traditional relays are often cumbersome and complex and expensive.

In the future, the development of small sealed relay market will focus on the IC-compatible TO-5 relays and 1/2 crystal enclosures relays. Military relays will be accelerated to industrial/commercial transfer. U.S. military relays account for about 20% of total relays. The general relay market continues to develop in the direction of small, thin and plastic seals. Small PCB relays will continue to be the mainstream of general relay market development products, solid relays will be more widespread, the price will continue to decline, and to the high reliability, small volume, high resistance to surge current impact and interference resistance closer. The reed relay market will continue to expand. The application field and demand of surface mount relays will increase.