What is relay, relay is characteristic, relay is classified

  • Time:
  • Click:101
  • source:BERO CNC Machining
Dispatch of net of machine tool of Chinese numerical control: Relay is a kind of primary electric facility, it is used open or shut a certain quantity of the circuit of mutual independence. This kind of operation is to use the electric magnetic field that produces by place of winding of voltage pilot coil to come true. Measure when the input (report, magnetism, sound, smooth, hot) when reaching fair value, sendout will produce the automata parts of an apparatus or appliance that bouncing type changes. The input measures the relay of afterwards report character of relay and be in between sendout the afterwards report feature that the correlation in whole change process becomes relay or control feature.

Express to input loop quantity with X, y expresses to output the sendout of loop, if pursue,1 is shown.

When sendout X changes to measure Xa certainly continuously, sendout Y happens jump change, 0 raise Ya cost, it is to input a quantity to continue to increase, it is output keeps changeless.

Contrary, should reducing Xb is, y decreases suddenly by Ya again 0.

Xa is called the behavioral cost of relay, xb is called the release value of relay, ya is the load of relay namely. The classified 　 of relay 1, the working principle that presses relay or 　 of structural classification of characteristics (1) electromagnetism relay: The attraction that uses pathway of the feature inside input to arise between electro-magnet core and armature makes a kind of when use and work electric relay. (2) solid relay: Point to what electronic component performs its function and do not have mechanical movement component, input and output a kind of relay of segregation. (3) temperature relay: Achieve the relay of movement of set-point from time to time when external temperature. (4) reed relay: Use sealed inside the canal, the reed action that has double re-act of reed getting an electric shock and armature magnetic circuit to use comes, the relay that shut or changes line 　 (5) time relay: Should be added or when eliminate inputs signal, output needs delay time partly or in a limited time time just closes or disconnect to the regulation its are accused circuit relay. (6) high frequency relay: Use at switch high frequency, radio frequency circuitry and the relay that has the smallest loss. (7) polarization relay: The magnetic field that polarization magnetic field and control electric current encircle a generation through control line makes the relay of with movement integratedly. The behavioral way of relay depends on controls what coil midstream passes electric current direction. (8) the relay of other type: Be like smooth relay, acoustical relay, heat up relay, appearance type relay, relay of suddenly Er effect, differential relay. Relay 　 of 　 of " ="left" Src="" /> 2, the over all dimension that presses relay classifies 　 (1) miniature relay 　 (2) exceed small-sized miniature relay 　 (3) small-sized miniature relay notes: To sealed or enclosed relay, over all dimension is relay noumenon the largest size of 3 mutual and perpendicular direction, do not include to install, terminals, control muscle, approach a limit, flange and the measure that sealed solder orders. 3, the load that presses relay classifies 　 (1) small power relay 　 (2) weak power relay 　 (3) medium power relay 　 (4) high-power relay 　 4, press relay defend 　 of classification of characteristics (1) sealed relay 　 (2) enclosed CNC Milling CNC Machining