CN202260400U - Modularized electromotor protector with communication redundancy function - Google Patents
Modularized electromotor protector with communication redundancy function Download PDFInfo
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Abstract
The utility model relates to a modularized electromotor protector with a communication redundancy function, belonging to the technical field of electromotor protection. The modularized electromotor protector comprises a protector body and a display module, wherein the protector body is connected with the display module; the protector body comprises a body microprocessor circuit, a power circuit, a body three-phase current sampling circuit, a body current signal amplifying circuit, a body residual current detection circuit, a body switching value input circuit, a control output circuit, a voltage detection circuit and a communication unit and is characterized in that: the communication unit at least comprises two communication interface circuits, whereon one communication interface circuit is a communication interface circuit, and the others are redundant communication interface circuits, and all the communication interface circuits are respectively connected with the body microprocessor circuit. The modularized electromotor protector disclosed by the utility model has the advantages of improving the communication reliability and the data integrity and realizing field operation and display.
Description
Technical field
The utility model relates to a kind of modular power motor protector with communication redundancy function, belongs to the motor protection technical field.
Background technology
Along with the continuous development of field bus technique, a lot of large scale industry controls field has proposed requirements at the higher level to the communication reliability and the data integrity of motor protector.Present most of Intelligent Asynohornized Protector only has one and is used for the communication interface of Fieldbus Control and the communication interface of a display operation; The communication interface of display operation can not be used for Fieldbus Control, but like the disclosed a kind of modularization communication motor protector of the novel license notification number of practicality CN201515216U.When the communication interface that is used for Fieldbus Control receives the interference on the bus or artificially damages; With regard to cisco unity malfunction; Cause host computer to receive that misdata maybe can't receive field data; Lose correct judgement or control, cause accident to take place when serious, cause bigger economic loss field apparatus.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes prior art, the integrality of a kind of reliability that improves communication, data is provided and realizes execute-in-place and the modular power motor protector with communication redundancy function of demonstration.
The task of the utility model realizes like this; A kind of modular power motor protector with communication redundancy function; Comprise: protector body and display module; The protector body is connected with display module; The protector body comprises body microcontroller circuit, power circuit, body three-phase current sample circuit, body current signal amplifier circuit, body residual current testing circuit, body switching value input circuit, controlling output circuit, voltage detecting circuit and communication unit, and power circuit is that motor protector provides power supply, and the body microcontroller circuit is connected with body current signal amplifier circuit, body residual current testing circuit, controlling output circuit, body switching value input circuit, voltage detecting circuit and communication unit respectively; Body three-phase current sample circuit is connected with electrical network with the body current signal amplifier circuit; Body residual current testing circuit is connected with electrical network, it is characterized in that communication unit comprises two communication interface circuits at least, and one of them communication interface circuit is a communication interface circuit; All the other are the redundancy communication interface circuit, all are connected with the body microcontroller circuit.
The described display module of the utility model comprises: display module microcontroller circuit, keyboard circuit, liquid crystal display circuit, display module communication interface circuit and LED display circuit, display module microcontroller circuit are connected with keyboard circuit, liquid crystal display circuit, display module communication interface circuit and LED display circuit respectively.
The described protector body of the utility model also comprises body analog signal generation circuit, and body analog signal generation circuit is connected with the body microcontroller circuit.
The described protector body of the utility model also comprises body PTC input circuit, and body PTC input circuit is connected with the body microcontroller circuit.
The controlling output circuit of the utility model comprises body relay output circuit and body analogue quantity output circuit, and body relay output circuit all is connected with the body microcontroller circuit with the body analogue quantity output circuit.
The described body power circuit of the utility model comprises piezo-resistance VR1, bridge heap B1, filter L0, power supply chip U2, U3, voltage-stabiliser tube DZ1, DZ3, inductance L 1-L4, resistance R 13 and capacitor C 8-C15, C27, C28, C31 ~ C33, C35; Piezo-resistance VR1 is connected across bridge and piles between 1 pin of B1,2 pin; 1 pin, 2 pin of bridge heap B1 insert electrical network AC1, AC2; 4 pin of bridge heap B1 connect an end of filter L0 primary coil; 3 pin of bridge heap B1 connect an end of filter L0 secondary coil; The other end of filter L0 secondary coil is connected back output DC source+24V with the end of capacitor C 27, C28, C31, C35, an end of resistance R 13 and 7 pin of power supply chip U2, U3; Another termination power supply chip U2 of resistance R 13,5 pin of U3; The negative electrode of voltage-stabiliser tube DZ1 is connected 1 pin of another termination power supply chip U2 of capacitor C 8,2 pin of a termination power chip U2 of capacitor C 11 with an end of inductance L 1, the end of electric capacity L8 and 8 pin of power supply chip U2; The other end of inductance L 1 is connected with the end of capacitor C 13, C33, an end of inductance L 2 and 4 pin of power supply chip U2; The other end of inductance L 2 is connected back output DC source VCC with an end of capacitor C 14, the negative electrode of pressurizer DZ3 is connected 1 pin of another termination power supply chip U3 of capacitor C 10 with an end of inductance L 3, an end of capacitor C 10 and 8 pin of power supply chip U3; 2 pin of one termination power chip U3 of capacitor C 9; The other end of inductance L 3 is connected with the end of capacitor C 12, C32, an end of inductance L 4 and 4 pin of power supply chip U3, and an end of the other end of inductance L 4 and capacitor C 15 is connected back output DC source+12V, 3, the 6 pin common grounds of the anode of the other end of the other end of filter L0 primary coil, capacitor C 9, C11-C15, C27, C28, C31-C33, C35, voltage-stabiliser tube DZ1, DZ3 and power supply chip U2, U3.
The described body microcontroller circuit of the utility model comprises microprocessor U1, crystal oscillator CRY1, the chip IC3 that resets, reference power supply chip IC 2 and capacitor C 1～C4; The end of crystal oscillator CRY1 is connected with the Xin pin of an end of capacitor C 3 and little process chip U1; The other end of crystal oscillator CRY1 is connected with an end of capacitor C 2 and the Xout pin of little process chip U1;
pin of little process chip U1 is connected with the RESET pin of the chip IC3 that resets; One end of capacitor C 1 is connected with the AVss pin of the out pin of reference power supply chip IC 2 and microprocessor U1; The IN pin of the IN pin of the VCC pin of one end of capacitor C 4, little process chip U1 and AVcc pin, reference power supply chip IC 2 and the chip IC3 that resets meets DC power supply VCC, 1 pin of the Vss pin of the other end of capacitor C 1-C4, little process chip U1, the chip IC3 that resets and the GND pin common ground of reference power supply chip IC 2.
The body communication interface circuit 1 of the utility model; Comprise IC 5 and IC6, resistance R 10～R12, capacitor C 6, C7, C25, C26; One end of capacitor C 25 and 1 pin of IC 5 meet DC power supply+12V; 3 pin of IC 5 are connected with the end of capacitor C 6, C7, C26, resistance R 10, R12 and 16 pin of IC 6; The other end of capacitor C 6 is connected with 9,15 pin of IC 6,4 pin, capacitor C 7, the other end of C26 and the other end of resistance R 10 of IC 5; 12 pin of another termination IC 6 of resistance R 12,3,6 pin of IC 6 connect P72, the P73 pin of microprocessor U1 in the microprocessor respectively, and 4,5 pin of IC 6 connect the P74 pin of microprocessor U1 in the microcontroller circuit; 1,7 pin of IC 6 meet DC power supply VCC, 2,8 pin of 2 pin of IC 5, IC 6 and the other end common ground of capacitor C 25.
The display module microcontroller circuit of the utility model; Comprise microprocessor N1, the chip N4 that resets, capacitor C 35～C37 and crystal oscillator CRY2; The end of crystal oscillator CRY2 is connected with the Xin pin of an end of capacitor C 36 and microprocessor N1; The other end of crystal oscillator CRY2 is connected with an end of capacitor C 37 and the Xout pin of microprocessor N1; 2 pin of chip N4 of resetting are connected with
pin of microprocessor N1; 3 pin of one end of capacitor C 35, the VCC pin of microprocessor N1 and the chip N4 that resets meet DC power supply VCC, the 1 pin common ground of the Vss pin of the other end of capacitor C 35-C37, microprocessor N1 and the chip N4 that resets.
The display module communication interface circuit of the utility model; Comprise chip N2, connector J1 and resistance R 24～R25; 1 pin of one termination connector J1 of 7 pin of chip N2 and resistance R 24; 2 pin of one termination connector J1 of 6 pin of chip N2 and resistance R 25, another termination DC power supply VCC of 8 pin of chip N2 and resistance R 25,5 pin of chip N2 and the other end common ground of resistance R 24; 1,4 pin of chip N2 are connected with P103, the P104 pin of microprocessor N1 respectively, and 2,3 pin of chip N2 connect the P102 pin of microprocessor N2.
The utility model in terms of existing technologies; Because the body communication interface circuit comprises two communication interface circuits at least; One of them communication interface circuit is main communication interface circuit; All the other are the redundancy communication interface circuit, therefore improve communication reliability, data integrality and realize execute-in-place and demonstration.
Description of drawings
The display module outline drawing of Fig. 1 the utility model.
The display module structure chart of Fig. 2 the utility model.
The protector body circuit block diagram of Fig. 3 the utility model.
The display module circuit block diagram of Fig. 4 the utility model.
The power circuit of Fig. 5 the utility model.
The body three-phase current sample circuit of Fig. 6 the utility model.
The body current signal amplifier circuit of Fig. 7 the utility model.
The body residual current testing circuit of Fig. 8 the utility model.
The body analog signal generation circuit of Fig. 9 the utility model.
The body PTC input circuit of Figure 10 the utility model.
The body switching value input circuit of Figure 11 the utility model.
The body microcontroller circuit of Figure 12 the utility model.
The body relay output circuit of Figure 14 the utility model.
The body analogue quantity output circuit of Figure 15 the utility model.
The display module microcontroller circuit of Figure 16 the utility model.
The keyboard circuit of Figure 17 the utility model.
The liquid crystal display circuit of Figure 18 the utility model.
The display module communication interface circuit of Figure 19 the utility model.
The LED display circuit of Figure 20 the utility model.
Embodiment
In order to be expressly understood the technical spirit and the beneficial effect of the utility model more; The applicant general combines accompanying drawing to elaborate with the mode of embodiment below; But the description to embodiment all is not the restriction to the utility model scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be regarded as the technical scheme category of the utility model.
With reference to Fig. 2, Fig. 2 is the display module structure chart of the utility model, comprising: membrane keyboard 1, case 2, circuit board module 3, screw 4, fixture 5 and cover 6.Membrane keyboard 1 is fixed on the case 2, and the wire harness (not shown) that will operate again on the membrane keyboard 1 is inserted on the respective socket of circuit board module 3.Circuit board module 3 usefulness screws 4 are fixed in the case 2, will cover 6 at last, fixture 5 snaps fitted on the case 2 successively, and completion status is as shown in Figure 1.
With reference to Fig. 3, Fig. 3 is the circuit block diagram of the protector body of the utility model.A kind of modular power motor protector with communication redundancy function comprises: protector body microcontroller circuit, power circuit, body three-phase current sample circuit, body current signal amplifier circuit, body residual current testing circuit, body switching value input circuit, controlling output circuit, voltage detecting circuit and communication unit.
Fig. 4 is the display module circuit block diagram of the utility model.The display module of the utility model comprises: display module microcontroller circuit, keyboard circuit, liquid crystal display circuit, display module communication interface circuit and LED display circuit.
Fig. 5 is the power circuit diagram of the utility model, and the body power circuit of the utility model comprises piezo-resistance VR1, bridge heap B1, filter L0, power supply chip U2, U3, voltage-stabiliser tube DZ1, DZ3, inductance L 1-L4, resistance R 13 and capacitor C 8-C15, C27, C28, C31-C33, C35.Thus the galvanic current source VCC that obtains of the body power circuit through the utility model and+12V ,+24V voltage is that motor protector body and display module provide power supply, realizes being connected of protector body and display module.U2, U3 are the MAX5033 power supply chip.
Fig. 6 is the body three-phase current sample circuit figure of the utility model; Comprise current transformer CT1～CT3 and resistance R 37～R40; The end of current transformer CT1～CT3 is connected with lead Vref; An end and the lead Ia of the other end connecting resistance R37 of current transformer CT1, an end and the lead Ib of the other end connecting resistance R38 of current transformer CT2, an end and the lead Ic of the other end connecting resistance R39 of current transformer CT3; One termination lead I0 of the other end of resistance R 37, R38, R39, resistance R 40; Another termination lead Vref of resistance R 40, current transformer CT1, CT2, CT3 connect three phase network, and lead Ia, Ib, Ic, I0, Vref connect the body current signal amplifier circuit.When having electric current to flow through in the phase line, can on corresponding instrument transformer, produce the induced current that is directly proportional with phase current, be respectively Ia, Ib, Ic.In addition, resistance R 40 is used for the threephase load balanced sample, if threephase load is uneven, current flowing resistance R40 is arranged then, produces voltage at its two ends, can be used as sampled signal and uses.
Fig. 7 is the body current signal amplifier circuit figure of the utility model; The body current signal amplifier circuit that is divided into A, B, C phase; A phase body current signal amplifier circuit comprises resistance R 16, R20, R21, R23, R26, R27 and amplifier AMP1B, AMP1D, the current signal of a termination lead Ia of resistance R 16,5 pin of another termination amplifier AMP1B; 6, the 7 pin connecting resistance R20 of amplifier AMP1B, the end of R26; 12 pin of another termination amplifier AMP1D of resistance R 20,13 pin of the termination amplifier AMP1D of resistance R 21, R23, the current signal of another termination lead Vref of resistance R 21; The end of the 14 pin connecting resistance R27 of the other end of resistance R 23 and amplifier AMP1D, the other end of resistance R 26, R27 connect P06, the P05 pin of microprocessor U1 in the body microcontroller circuit respectively.B phase, C phase body current signal amplifier circuit are identical with A phase current signal amplifying circuit principle.AMPB1, AMP1D are the TLC2254 amplifier, and wherein AMP1D is an analog voltage comparator, and the aanalogvoltage of the 7 pin output of amplifier AMP1B converts switching signal to.When amplifier AMP1B output voltage increased to the threshold value of amplifier, the negative sense saltus step took place in amplifier AMP1D output, reaches minimum value.B is identical with A phase current signal amplifying circuit with C phase body current signal amplifier circuit mutually, and B phase body current signal amplifier circuit is connected with P21, the P22 pin of microprocessor U1, and C phase body current signal amplifier circuit is connected with P23, the P24 pin of microprocessor U1.
Fig. 8 is the body residual current testing circuit figure of the utility model.Body residual current testing circuit; Comprise instrument transformer CT0, resistance R 14～R15, R17～R19, R22, diode D2, D3,, capacitor C 16 and amplifier AMP1A, AMP1C; Instrument transformer CT0 gets access to grid; The end of instrument transformer CTO is connected with an end of resistance R 14, R15, R18, capacitor C 16; The other end of resistance R 15 is connected with an end of resistance R 17, the negative electrode of diode D2 and 2 pin of amplifier AMP1A; The anode of diode D2 connects the negative electrode of diode D3 and 1 pin of amplifier AMP1A, the anode of another terminating diode D3 of resistance R 17 and an end of resistance R 19,9 pin of a termination amplifier AMP1C of the other end of resistance R 18, R19 and resistance R 22; 8 pin of the other end of resistance R 22 and amplifier AMP1C connect the P04 pin of microprocessor U1 in the microcontroller circuit, 3 pin of the other end of the other end of instrument transformer CT0, resistance R 14, the other end of capacitor C 16 and amplifier AMP1A, the 10 pin common grounds of AMP1C.CT0 is the current transformer that is placed on the three-phase electricity center line, if electric current is arranged on the center line, will on instrument transformer CT0, produce induced voltage.AMP1A is an electric current input amplifier, amplifies the current signal from center line.Diode D2, D3, R17 can only amplify amplifier AMP1A to the negative half period of CT0 sampled signal.AMP1A, AMP1C are the MAX5033 amplifier.
Fig. 9 is the body analog signal generation circuit diagram of the utility model; Comprise resistance R 31～R33, R36, capacitor C 19, C34 and amplifier AMP2C; The P76 pin of microprocessor U1 in the one termination microcontroller circuit of resistance R 31; The other end of resistance R 31 is connected with an end of resistance R 32 and an end of capacitor C 34; The other end of resistance R 32 is connected with an end of resistance R 33, capacitor C 19 and 5 pin of amplifier AMP2C, the end of 6, the 7 pin connecting resistance R36 of amplifier AMP2C, and the other end of resistance R 36 is connected to residual current transformer; The other end common ground of the other end of capacitor C 19, C34 and resistance R 33, resistance R 36 output test signals are to outside residual current transformer.AMP2C is the MAX5033 amplifier.
Figure 10 is the body PTC input circuit figure of the utility model; Comprise TVS pipe DZ2, resistance R 34, R35, capacitor C 17 and amplifier AMP2B; An end, resistance R 34, the end of R35 and the termination thermistor of capacitor C 17 of TVS pipe DZ2, thermistor is embedded in the motor.Another termination DC power supply VCC of resistance R 34,5 pin of another termination amplifier AMP2B of resistance R 35,6,7 pin of amplifier AMP2B connect the P03 pin of microprocessor U1 in the microcontroller circuit, the other end ground connection of TVS pipe DZ2 and capacitor C 17.AMP2B is the MAX5033 amplifier.
Figure 11 is the body switching value input circuit figure of the utility model; Comprise resistance R 4～R6 and optocoupler OP2; One end of resistance R 6 meets DC power supply 24V through input; It is imported from external auxiliary signals such as circuit breaker, contactors, an end of the end of the other end connecting resistance R5 of resistance R 6 and the input of optocoupler OP2, the P63 pin of microprocessor U1 in the termination microcontroller circuit of an end of optocoupler OP2 output and resistance R 4; Another termination DC power supply VCC of resistance R 4, the other end common ground of the other end of optocoupler OP2 input and output and resistance R 5.
Figure 12 is the body microcontroller circuit figure of the utility model.Comprise microprocessor U1, crystal oscillator CRY1, the chip IC3 that resets, reference power supply chip IC 2 and capacitor C 1～C4.U1 is the M3028 microprocessor, and IC3 is the MAX809 chip that resets, and IC2 is a REF3040 reference power supply chip.
Figure 13 is body communication interface circuit 1 figure of the utility model.IC5 is the B1205 integrated circuit, and IC6 is the ADUM2483 integrated circuit.Communication interface circuit 1 is main communication interface circuit; Communication interface circuit 2 is the redundancy communication interface circuit; Communication interface circuit 2 is identical with the circuit of communication interface circuit 1, and communication interface circuit 2 is connected with P66, P67, the P74 pin of microprocessor U1 in the body microcontroller circuit.When motor protector and upper machine communication, host computer sends communication request through communication interface circuit 1, receives answer signal, then sets up correspondence with communication interface circuit 1; Otherwise, do not receive answer signal, then send communication request, to set up correspondence through communication interface circuit 2.
Figure 14 is the body relay output circuit figure of the utility model.Body relay output circuit; Comprise optocoupler OP1, triode T1, diode D1, relay R ELY1 and resistance R 3; One termination DC power supply VCC of resistance R 3; One end of the input of another termination optocoupler OP1, the P64 pin of microprocessor U1 in another termination microcontroller circuit of optocoupler OP1 input, the base stage of triode T1 is connected with an end of optocoupler OP1 output; One end of relay R ELY1 coil is connected with the emitter of triode T1 with the anode of diode D1; The negative electrode of the other end of relay R ELY1 coil and diode D1 meets DC power supply+12V, the other end of optocoupler OP1 output and the grounded collector of triode T1, and the contact MR of relay R ELY1, MR1 are connected to output.When this circuit has light signal, optocoupler OP1 conducting, triode T1 conducting, the relay R ELY1 adhesive of switching on, relay is connected.The contact MR of relay R ELY1, MR1 output to contactor, contactor control motor.
Figure 15 is the body analogue quantity output circuit figure of the utility model.The body analogue quantity output circuit; Comprise D/A chip IC 8, power supply fiducial chip IC7, metal-oxide-semiconductor MOS1, resistance R 41 and capacitor C 18, C20～C22; 1 pin of one termination D/A chip IC 8 of capacitor C 18 and 2 pin of metal-oxide-semiconductor MOS1; One end of capacitor C 21 and 8 pin of D/A chip IC 8 meet DC power supply VCC; One end of capacitor C 22 is connected with 2 pin of 6 pin of D/A chip IC 8 with power supply fiducial chip IC7; 5 pin of one termination D/A chip IC 8 of 3 pin of metal-oxide-semiconductor MOS1 and resistance R 41, a termination DC power supply VCC of 1 pin of power supply fiducial chip IC7, capacitor C 20,1 pin of metal-oxide-semiconductor MOS1 connects output; 2,3,4 pin of D/A chip IC 8 connect P97 pin, P96 pin, the P95 pin of microprocessor U1 in the microcontroller circuit respectively, the 3 pin common grounds of the other end of the other end of capacitor C 18, C20～C22, resistance R 4,7 pin of D/A chip IC 8 and power supply fiducial chip IC7.IC8 is the D/A chip of MAX5304, and IC7 is a REF3012 power supply fiducial chip.1 pin of metal-oxide-semiconductor MOS1 outputs to external meters.
Figure 16 is the display module microcontroller circuit figure of the display module of the utility model.N1 is the R8C microprocessor chip, and N4 is the MAX809 chip that resets.
Figure 17 is the keyboard circuit figure of the display module of the utility model.The keyboard circuit of the utility model comprises resistance R 42～R49 and button S1～S8.The end ground connection of button S1～S8, the other end are connected with the P00-P07 pin of microprocessor N1 in the display module respectively successively with after the end of resistance R 42～R49 is connected, another termination VCC of resistance R 42～R49.
Figure 18 is the liquid crystal display circuit figure of the display module of the utility model.Liquid crystal N3 adopts LCD LCDs 122X32; The VSS pin ground connection of liquid crystal N3; The VDD of liquid crystal N3, RST pin meet DC power supply VCC, and the E1 of liquid crystal N3, E2, R/W, D0～D7 pin are connected with P21, P22, P20, the P30-P37 pin of microprocessor N1 in the display module microcontroller circuit respectively.
Figure 19 is the display module communication interface circuit figure of the display module of the utility model.N2 is the MAX184 chip.
Figure 20 is the LED display circuit figure of the display module of the utility model.Comprise resistance R 28 and light-emitting diode D4, a termination DC power supply VCC of resistance R 28, the other end is connected with light-emitting diode D4 anode, and the negative pole of light-emitting diode D4 is connected with the P101 pin of microprocessor N1.
Voltage detecting circuit is that the patent No. is a kind of three-phase three-wire system line voltage detecting circuit of CN200620075271.4.Voltage detecting circuit is connected with P25, P26, the P27 pin of microprocessor U1.
Claims (10)
1. modular power motor protector with communication redundancy function; Comprise: protector body and display module; The protector body is connected with display module; The protector body comprises body microcontroller circuit, power circuit, body three-phase current sample circuit, body current signal amplifier circuit, body residual current testing circuit, body switching value input circuit, controlling output circuit, voltage detecting circuit and communication unit; Power circuit is that motor protector provides power supply; The body microcontroller circuit is connected with body current signal amplifier circuit, body residual current testing circuit, controlling output circuit, body switching value input circuit, voltage detecting circuit and communication unit respectively, and body three-phase current sample circuit is connected with electrical network with the body current signal amplifier circuit, and body residual current testing circuit is connected with electrical network; It is characterized in that communication unit comprises two communication interface circuits at least; One of them communication interface circuit is main communication interface circuit (1), and all the other are redundancy communication interface circuit (2), and all communication interface circuits all are connected with the body microcontroller circuit.
2. a kind of modular power motor protector according to claim 1 with communication redundancy function; It is characterized in that display module comprises: display module microcontroller circuit, keyboard circuit, liquid crystal display circuit, display module communication interface circuit and LED display circuit, display module microcontroller circuit are connected with keyboard circuit, liquid crystal display circuit, display module communication interface circuit and LED display circuit respectively.
3. a kind of modular power motor protector with communication redundancy function according to claim 1 is characterized in that the protector body also comprises body analog signal generation circuit, and body analog signal generation circuit is connected with the body microcontroller circuit.
4. a kind of modular power motor protector with communication redundancy function according to claim 1 is characterized in that the protector body also comprises body PTC input circuit, and body PTC input circuit is connected with the body microcontroller circuit.
5. a kind of modular power motor protector according to claim 1 with communication redundancy function; It is characterized in that controlling output circuit comprises body relay output circuit and body analogue quantity output circuit, body relay output circuit all is connected with the body microcontroller circuit with the body analogue quantity output circuit.
6. a kind of modular power motor protector according to claim 1 with communication redundancy function; It is characterized in that the body power circuit comprises piezo-resistance VR1, bridge heap B1, filter L0, power supply chip U2, U3, voltage-stabiliser tube DZ1, DZ3, inductance L 1-L4, resistance R 13 and capacitor C 8-C15, C27, C28, C31 ~ C33, C35; Piezo-resistance VR1 is connected across bridge and piles between 1 pin of B1,2 pin; 1 pin, 2 pin of bridge heap B1 insert electrical network AC1, AC2; 4 pin of bridge heap B1 connect an end of filter L0 primary coil; 3 pin of bridge heap B1 connect an end of filter L0 secondary coil; The other end of filter L0 secondary coil is connected back output DC source+24V with the end of capacitor C 27, C28, C31, C35, an end of resistance R 13 and 7 pin of power supply chip U2, U3; Another termination power supply chip U2 of resistance R 13,5 pin of U3; The negative electrode of voltage-stabiliser tube DZ1 is connected 1 pin of another termination power supply chip U2 of capacitor C 8,2 pin of a termination power chip U2 of capacitor C 11 with an end of inductance L 1, the end of electric capacity L8 and 8 pin of power supply chip U2; The other end of inductance L 1 is connected with the end of capacitor C 13, C33, an end of inductance L 2 and 4 pin of power supply chip U2; The other end of inductance L 2 is connected back output DC source VCC with an end of capacitor C 14, the negative electrode of pressurizer DZ3 is connected 1 pin of another termination power supply chip U3 of capacitor C 10 with an end of inductance L 3, an end of capacitor C 10 and 8 pin of power supply chip U3; 2 pin of one termination power chip U3 of capacitor C 9; The other end of inductance L 3 is connected with the end of capacitor C 12, C32, an end of inductance L 4 and 4 pin of power supply chip U3, and an end of the other end of inductance L 4 and capacitor C 15 is connected back output DC source+12V, 3, the 6 pin common grounds of the anode of the other end of the other end of filter L0 primary coil, capacitor C 9, C11-C15, C27, C28, C31-C33, C35, voltage-stabiliser tube DZ1, DZ3 and power supply chip U2, U3.
7. a kind of modular power motor protector according to claim 1 with communication redundancy function; It is characterized in that the body microcontroller circuit comprises microprocessor U1, crystal oscillator CRY1, the chip IC3 that resets, reference power supply chip IC 2 and capacitor C 1～C4; The end of crystal oscillator CRY1 is connected with the Xin pin of an end of capacitor C 3 and little process chip U1; The other end of crystal oscillator CRY1 is connected with an end of capacitor C 2 and the Xout pin of little process chip U1;
pin of little process chip U1 is connected with the RESET pin of the chip IC3 that resets; One end of capacitor C 1 is connected with the AVss pin of the out pin of reference power supply chip IC 2 and microprocessor U1; The IN pin of the IN pin of the VCC pin of one end of capacitor C 4, little process chip U1 and AVcc pin, reference power supply chip IC 2 and the chip IC3 that resets meets DC power supply VCC, 1 pin of the Vss pin of the other end of capacitor C 1-C4, little process chip U1, the chip IC3 that resets and the GND pin common ground of reference power supply chip IC 2.
8. a kind of modular power motor protector according to claim 1 with communication redundancy function; It is characterized in that body communication interface circuit (1) comprises IC 5 and IC6, resistance R 10～R12, capacitor C 6, C7, C25, C26; One end of capacitor C 25 and 1 pin of IC 5 meet DC power supply+12V; 3 pin of IC 5 are connected with the end of capacitor C 6, C7, C26, resistance R 10, R12 and 16 pin of IC 6; The other end of capacitor C 6 is connected with 9,15 pin of IC 6,4 pin, capacitor C 7, the other end of C26 and the other end of resistance R 10 of IC 5; 12 pin of another termination IC 6 of resistance R 12; 3,6 pin of IC 6 connect P72, the P73 pin of microprocessor U1 in the microprocessor respectively; 4,5 pin of IC 6 connect the P74 pin of microprocessor U1 in the microcontroller circuit, and 1,7 pin of IC 6 meet DC power supply VCC, 2,8 pin of 2 pin of IC 5, IC 6 and the other end common ground of capacitor C 25.
9. a kind of modular power motor protector according to claim 2 with communication redundancy function; It is characterized in that the display module microcontroller circuit comprises microprocessor N1, the chip N4 that resets, capacitor C 35～C37 and crystal oscillator CRY2; The end of crystal oscillator CRY2 is connected with the Xin pin of an end of capacitor C 36 and microprocessor N1; The other end of crystal oscillator CRY2 is connected with an end of capacitor C 37 and the Xout pin of microprocessor N1; 2 pin of chip N4 of resetting are connected with
pin of microprocessor N1; 3 pin of one end of capacitor C 35, the VCC pin of microprocessor N1 and the chip N4 that resets meet DC power supply VCC, the 1 pin common ground of the Vss pin of the other end of capacitor C 35-C37, microprocessor N1 and the chip N4 that resets.
10. a kind of modular power motor protector according to claim 2 with communication redundancy function; It is characterized in that the display module communication interface circuit comprises chip N2, connector J1 and resistance R 24～R25; 1 pin of one termination connector J1 of 7 pin of chip N2 and resistance R 24; 2 pin of one termination connector J1 of 6 pin of chip N2 and resistance R 25, another termination DC power supply VCC of 8 pin of chip N2 and resistance R 25,5 pin of chip N2 and the other end common ground of resistance R 24; 1,4 pin of chip N2 are connected with P103, the P104 pin of microprocessor N1 respectively, and 2,3 pin of chip N2 connect the P102 pin of microprocessor N2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203497450U CN202260400U (en) | 2011-09-19 | 2011-09-19 | Modularized electromotor protector with communication redundancy function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203497450U CN202260400U (en) | 2011-09-19 | 2011-09-19 | Modularized electromotor protector with communication redundancy function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260400U true CN202260400U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203497450U Expired - Lifetime CN202260400U (en) | 2011-09-19 | 2011-09-19 | Modularized electromotor protector with communication redundancy function |
Country Status (1)
| Country | Link |
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| CN (1) | CN202260400U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102968103A (en) * | 2012-11-15 | 2013-03-13 | 南京中电自动化有限公司 | Data communication module of motor protector |
| CN107612133A (en) * | 2017-10-24 | 2018-01-19 | 长沙捷联飞机维修工程有限公司 | Aviation high-frequency wireless communication system flows redundant power starting with full load system |
-
2011
- 2011-09-19 CN CN2011203497450U patent/CN202260400U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102968103A (en) * | 2012-11-15 | 2013-03-13 | 南京中电自动化有限公司 | Data communication module of motor protector |
| CN102968103B (en) * | 2012-11-15 | 2016-12-21 | 南京中电自动化有限公司 | data communication module of motor protector |
| CN107612133A (en) * | 2017-10-24 | 2018-01-19 | 长沙捷联飞机维修工程有限公司 | Aviation high-frequency wireless communication system flows redundant power starting with full load system |
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