CN209859434U - Teaching simulation device for brushless direct-current generator of airplane - Google Patents

Teaching simulation device for brushless direct-current generator of airplane Download PDF

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Publication number
CN209859434U
CN209859434U CN201822268483.XU CN201822268483U CN209859434U CN 209859434 U CN209859434 U CN 209859434U CN 201822268483 U CN201822268483 U CN 201822268483U CN 209859434 U CN209859434 U CN 209859434U
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China
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control switch
schematic diagram
stage
group
relay
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Expired - Fee Related
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CN201822268483.XU
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Chinese (zh)
Inventor
杨东海
王文杰
刘春英
文一娜
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Changsha Aeronautical Vocational and Technical College
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Changsha Aeronautical Vocational and Technical College
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Abstract

The utility model relates to a teaching device, concretely relates to brushless alternator teaching analogue means of aircraft. The utility model provides an aircraft brushless DC generator analogue means that imparts knowledge to students, including demonstrating board and control box, be equipped with control circuit board on the control box, the last first order control switch that increases progressively control step by step that is equipped with of control circuit board, second level control switch, third level control switch and fourth level control switch, be equipped with first order control switch on the demonstrating board, second level control switch, the first order pilot lamp group that third level control switch and fourth level control switch controlled respectively, second level pilot lamp group, third level pilot lamp group fourth level pilot lamp group, multistage step by step control, demonstrate the order of aircraft brushless AC generator's work according to the step, let aircraft brushless AC generator's theory of operation surveyability, it is directly perceived simple, leave the deep impression for the student.

Description

Teaching simulation device for brushless direct-current generator of airplane
Technical Field
The utility model relates to a teaching device, concretely relates to brushless DC generator teaching simulation device of aircraft.
Background
With the development of education industry, the requirement on the culture quality of skilled talents is higher and higher, and various teaching devices are generated along with the requirement. In order to fully master various theoretical knowledge, a teacher needs to combine the theoretical knowledge to realize practical teaching. The work principle of the brushless DC generator of the airplane is to provide excitation to the excitation winding of the exciter on the stator, the armature winding of the rotor of the brushless DC generator sends out alternating current, and the alternating current is supplied to the excitation winding of the main generator on the rotor after passing through the rotating rectifier, so that the main generator induces the required alternating current on the armature winding of the stator, the three-phase alternating current of the main generator is output, and the rectifying and filtering circuit works to output direct current. This process is relatively abstract and difficult to understand. The students need to make a simulation device which can enable the students to visually observe the whole working principle so as to have more profound impression on the theoretical knowledge of the brushless direct current generator of the airplane.
Disclosure of Invention
For solving the problem that exists among the prior art, the utility model provides an aircraft brushless DC generator teaching analogue means lets aircraft brushless DC generator's theory of operation surveyability, and is directly perceived simple, leaves the impression for the student.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides an aircraft brushless DC generator analogue means that imparts knowledge to students, includes demonstrating board and control box, its characterized in that: the control box is provided with a control circuit board, the control circuit board is provided with a first-stage control switch, a second-stage control switch, a third-stage control switch and a fourth-stage control switch, the teaching board is provided with a direct-current exciter stator schematic diagram, a direct-current exciter rotor schematic diagram, a three-phase half-wave rectification circuit diagram, a main generator rotor schematic diagram, a main generator stator schematic diagram and a rectification filter circuit, a first arrow pointing to the direct-current exciter rotor schematic diagram from the direct-current exciter stator schematic diagram is arranged between the direct-current exciter stator schematic diagram and the direct-current exciter rotor schematic diagram, a second arrow pointing to the three-phase half-wave rectification circuit diagram from the direct-current exciter rotor schematic diagram is arranged between the direct-current exciter rotor schematic diagram and the three-phase half-wave rectification circuit diagram, and a third arrow pointing to the main generator stator schematic diagram from the three-phase, a fourth arrow pointing to the schematic diagram of the stator of the main generator from the schematic diagram of the rotor of the main generator is arranged between the schematic diagram of the rotor of the main generator and the schematic diagram of the stator of the main generator, a fifth arrow pointing to the rectifying and filtering circuit from the schematic diagram of the stator of the main generator is arranged between the schematic diagram of the stator of the main generator and the rectifying and filtering circuit, a first-stage indicator lamp group, a second-stage indicator lamp group, a third-stage indicator lamp group and a fourth-stage indicator lamp group are arranged on the teaching board, the first-stage indicator lamp group comprises a first group of indicator lamps on a winding of the schematic diagram of the stator of the direct-current exciter controlled by a first-stage control switch, a second group of indicator lamps on the schematic diagram of the rotor of the direct-current exciter and a third group of indicator lamps on the first arrow, the second-stage indicator lamp group comprises a fourth, the third-stage indicator light group comprises a sixth group of indicator lights on a third arrow controlled by the third-stage control switch, a seventh group of indicator lights on a winding of the main generator rotor schematic diagram, an eighth group of indicator lights on a fourth arrow and a ninth group of indicator lights on a winding of the main generator stator schematic diagram, and the fourth-stage indicator light group comprises a tenth group of indicator lights on a fifth arrow controlled by the fourth-stage control switch and an eleventh group of indicator lights on the rectifying and filtering circuit; the control circuit board is also provided with a power button and a singlechip scintillator control box which are connected in sequence, the output end of the singlechip scintillator control box is connected with the anodes of the first to eleventh groups of indicator lamps through triodes, the power button is connected with a first-stage control switch, the first-stage control switch, a second-stage control switch, a third-stage control switch and a fourth-stage control switch are connected in sequence, the output end of the first-stage control switch is connected with one end of a coil of a relay J1, the output end of the second-stage control switch is connected with one end of a coil of a relay J2, the output end of the third-stage control switch is connected with one end of a coil of a relay J3, the output end of the fourth-stage control switch is connected with one end of a coil of a relay J4, the other ends of the coils of the relays J1, J2, J3 and J4 are grounded, the input end of a normally open contact switch of the relay J1 is connected with, the input of the normally open contact switch of the relay J3 is connected with the negative pole of the third-stage indicator light group, the input of the normally open contact switch of the relay J4 is connected with the negative pole of the fourth-stage indicator light group, and the output ends of the normally open contact switches of the relays J1, J2, J3 and J4 are grounded.
Above-mentioned structure presses power button, and singlechip scintillator control box work, and output pulse signal sends to the anodal of the pilot lamp of demonstrating board, is in standby state this moment. The first-stage control switch is pressed down, a coil of the relay J1 is electrified, a normally open contact switch of the relay J1 is closed, the relay J1 enables the cathodes of all first-stage indicator lamps of the teaching board to be grounded, a first group of indicator lamp groups on a winding of a schematic diagram of a direct-current exciter stator to flicker to represent the work of an exciting magnetic field, a third group of indicator lamps on a first arrow point flicker to work next step, and a second group of indicator lamps on a corresponding schematic diagram of a direct-current exciter rotor rotate to represent the work of the direct-current exciter rotor and are in a generator state.
And when the second-stage control switch is pressed, a fourth group of indicator lamps on a second arrow flash, and the output three-phase alternating current is sent to the next-stage excitation rectification. The relay J2 circular telegram, the normally open contact switch of relay J2 is closed, and relay J2 is with the second level pilot lamp group negative pole ground connection on the demonstrating board, and the fifth group pilot lamp scintillation on the three-phase half-wave rectifier circuit picture represents three-phase half-wave rectifier circuit work, with the three-phase alternating current rectification of input into the direct current.
The third-stage switch is pressed, the relay J3 is electrified, the normally open contact switch of the relay J3 is closed, the relay J3 enables the negative electrode of the third-stage indicator light group on the teaching board to be grounded, the sixth group of indicator lights on the third arrow twinkle to indicate that the rectified direct current is sent to the excitation winding of the next-stage main generator, and the seventh group of indicator lights of the winding of the rotor schematic diagram of the main generator represent the excitation magnetic field to work to form the excitation magnetic field of the main generator. And the eighth group of indicator lights on the fourth arrow point to the next step of work, and the ninth group of indicator lights on the winding of the schematic diagram corresponding to the stator of the main generator rotate to represent the three-phase alternating current output of the main generator and output the alternating voltage.
The fourth-stage switch is pressed, the relay J4 is powered on, the normally-open contact switch of the relay J4 is closed, the relay J4 enables the negative electrode of the fourth-stage indicator light group on the teaching board to be grounded, the tenth indicator light on the fifth arrow flashes to indicate that three-phase alternating current is supplied to the rectifying and filtering circuit, the eleventh indicator light flashes on the rectifying and filtering circuit diagram to represent that the rectifying and filtering circuit works, and direct current is output.
Through the steps, multistage hierarchical control is achieved, the current generation process is vividly simulated through the working sequence of the first group of indicator lights to the eleventh group of indicator lights, the working sequence of the brushless direct current generator of the airplane is displayed according to the steps, the working principle of the brushless direct current generator of the airplane is clear at a glance, students can clearly see the working process of the brushless direct current generator of the airplane, the operation is visual and simple, deep impression is left for the students, and teaching is convenient.
Furthermore, a motor control switch is further arranged on the control box, an excitation motor is arranged in the center of the schematic diagram of the rotor of the direct-current excitation motor, one end of the excitation motor is connected with the output end of the first-stage control switch through the motor control switch and a relay J1, and the other end of the excitation motor is connected with the input end of a relay J1 normally-open contact switch. According to the technical scheme, the power supply device has the advantages that the first-level control switch is pressed down, the coil of the relay J1 is electrified, the normally open contact switch of the relay J1 is closed, the power supply of the excitation motor is controlled by the relay J1, the excitation motor simulates the rotation of a rotating shaft, meanwhile, sound is emitted, a student knows that the direct-current excitation motor works, the work of the excitation motor can also be disconnected through the motor control switch, the noise is reduced, and convenience is brought to a teacher for explaining.
Furthermore, a generating motor is arranged in the center of the schematic diagram of the stator of the main generator, one end of the generating motor is connected with the output end of the third-stage control switch through a motor control switch and a relay J4, and the other end of the generating motor is connected with the input end of a relay J4 normally open contact switch.
According to the third level control switch, the coil of the relay J4 is electrified, the normally open contact switch of the relay J4 is closed, the power supply of the power generation motor is controlled by the relay J4, the simulation rotating shaft of the power generation motor is rotated, meanwhile, the sound is emitted, so that the student knows that the power generation motor works, the work of the power generation motor can be disconnected by the motor control switch, the noise is reduced, and the teacher can conveniently explain the power generation motor.
Further, the motor control switch is a normally closed button; the normally closed buttons can enable the relays J1 and J4 to automatically control the excitation motor and the power generation motor, and meanwhile, the work of the excitation motor and the power generation motor can be stopped simultaneously only by pressing the motor control switch when noise is reduced.
Further, the first to ninth groups of indicator lights are LED lights. The LED lamp has low working voltage, convenient control and long service life.
Furthermore, the teaching board is also provided with a brushless direct current generator schematic diagram and a brushless direct current generator internal structure diagram. Therefore, teachers can explain the working principle of the brushless direct-current generator of the airplane more conveniently and visually.
Drawings
Fig. 1 is a mechanism diagram of a teaching board.
Fig. 2 is a working principle diagram of the control box.
Fig. 3 is a schematic diagram of the control box.
In fig. 2, the end a is connected with the negative common end of the first-stage indicator light group, the end B is connected with the positive common end of the first-stage indicator light group, the end C is connected with the positive common end of the second-stage indicator light group, the end D is connected with the positive common end of the third-stage indicator light group, the end F is connected with the positive common end of the fourth-stage indicator light group, the end G is connected with the negative common end of the second-stage indicator light group, the end H is connected with the negative common end of the third-stage indicator light group, and the end I is connected with the negative common end of the fourth-stage indicator light group.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-3, a teaching simulator for brushless dc generator of airplane comprises a teaching board 1 and a control box 2, wherein the control box 2 is provided with a control circuit board 3, and the control circuit board 3 is provided with a first-stage control switch 4, a second-stage control switch 5, a third-stage control switch 6 and a fourth-stage control switch 70 which are controlled in a stepwise increasing manner.
The demonstration board 1 is provided with a direct current exciter stator schematic diagram 7, a direct current exciter rotor schematic diagram 8, a three-phase half-wave rectifying circuit diagram 9, a main generator rotor schematic diagram 10, a main generator stator schematic diagram 11 and a rectifying and filtering circuit 71, a first arrow 12 pointing to the direct current exciter rotor schematic diagram 8 from the direct current exciter stator schematic diagram 7 is arranged between the direct current exciter stator schematic diagram 7 and the direct current exciter rotor schematic diagram 8, a second arrow 13 pointing to the three-phase half-wave rectifying circuit diagram 9 from the direct current exciter rotor schematic diagram 8 is arranged between the direct current exciter rotor schematic diagram 8 and the three-phase half-wave rectifying circuit diagram 9, a third arrow 14 pointing to the main generator stator schematic diagram 11 from the three-phase half-wave rectifying circuit diagram 9 is arranged between the three-phase half-wave rectifying circuit diagram 9 and the main generator stator schematic diagram 11, and a third arrow 14 pointing to the main generator stator schematic diagram 11 from the main generator rotor schematic A fourth arrow 15 of fig. 11, a fifth arrow 72 from the schematic diagram 11 of the main generator stator to the rectifying and filtering circuit 71 is arranged between the schematic diagram 11 of the main generator stator and the rectifying and filtering circuit 71, a first stage indicator light group 16, a second stage indicator light group 17, a third stage indicator light group 18 and a fourth stage indicator light 73 are arranged on the teaching board 1, the first stage indicator light group 16 comprises a first group indicator light 19 on the winding of the schematic diagram 7 of the dc exciter stator controlled by the first stage control switch 4, a second group indicator light 20 on the schematic diagram 8 of the dc exciter rotor and a third group indicator light 21 on the first arrow 12, the second stage indicator light group 17 comprises a fourth group indicator light 22 on the second arrow 13 controlled by the second stage control switch 5 and a fifth group indicator light 23 on the schematic diagram 9 of the three-phase half-wave rectifying circuit, the third stage indicator light group 18 comprises a sixth group indicator light 24 on the third arrow 14 controlled by the third stage control switch 6, A seventh group of indicator lights 25 on the main generator rotor schematic diagram 10, an eighth group of indicator lights 26 on the fourth arrow 15 and a ninth group of indicator lights 27 on the winding of the main generator stator schematic diagram 11, and a fourth group of indicator lights 73 comprises a tenth group of indicator lights 74 on the fifth arrow controlled by a fourth control switch and an eleventh group of indicator lights 75 on the rectifying and filtering circuit 71.
The control circuit board 3 is also provided with a power button 28 and a singlechip scintillator control box 29 which are connected in sequence, the output end of the power button 28 is connected to the positive electrodes of the first to ninth groups of indicator lights through a resistor, a 7805 three-terminal voltage stabilization integrated circuit 1a is connected between the power button 28 and the singlechip scintillator control box, a 52 singlechip is used in the singlechip scintillator control box, the output end of the singlechip scintillator control box 29 is connected with the base electrode of a triode, the emitting electrode of the triode is connected to the positive electrodes of the first to eleventh groups of indicator lights and the output indicator light, the collector electrode of the triode is grounded, in the embodiment, the first level indicator light group 16, the second level indicator light group 17, the third level indicator light group 18 and the fourth level indicator light group 75 are respectively and correspondingly connected with a triode V1, V2, V3 and V4, a light emitting diode is connected in parallel between the emitting electrode and the collector electrode of each triode, the power button 28 is connected with the first level control switch 4, the second level control switch 5, the third level control switch 6 and the fourth level control switch 70 are connected in sequence, the output end of the first level control switch 4 is connected with one end of the coil of the relay J1, the output end of the second level control switch 5 is connected with one end of the coil of the relay J2, the output end of the third level control switch 6 is connected with one end of the coil of the relay J3, the output end of the fourth level control switch 70 is connected with one end of the coil of the relay J4, the other ends of the coils of the relays J1, J2, J3 and J4 are grounded, the input end of the normally open contact switch of the relay J1 is connected with the negative pole of the first level indicator lamp group 16, the input end of the normally open contact switch of the relay J2 is connected with the negative pole of the second level indicator lamp group 17, the input, the input end of the normally open contact switch of the relay J4 is connected with the negative electrode of the fourth-stage indicator lamp group 73, and the output ends of the normally open contact switches of the relays J1, J2, J3 and J4 are grounded.
In the structure, when the power button 28 is pressed, the input voltage is 12V direct current, the singlechip scintillator control box 29 works, and the output pulse signal is sent to the anode of the indicator light of the teaching board 1 and is in a standby state at the moment. The first-stage control switch 4 is pressed, a coil of the relay J1 is electrified, a normally open contact switch of the relay J1 is closed, the relay J1 enables the cathodes of all first-stage indicator lamps of the teaching board 1 to be grounded, the first group of indicator lamps 19 on a winding of a direct-current exciter stator schematic diagram 7 flicker to represent the work of an exciting magnetic field, the third group of indicator lamps 21 on a first arrow 12 flicker to point to the next work, and the second group of indicator lamps 20 on a corresponding direct-current exciter rotor schematic diagram 8 rotate to represent the work of a direct-current exciter rotor and are in a generator state.
When the second-stage control switch 5 is pressed, the fourth group of indicator lamps 22 on the second arrow 13 twinkle, and the three-phase alternating current representing the output is supplied to the next stage of excitation rectification. The relay J2 is electrified, the normally open contact switch of the relay J2 is closed, the relay J2 grounds the negative electrode of the second-level indicator lamp group 17 on the demonstration board 1, the fifth group of indicator lamps 23 on the three-phase half-wave rectifying circuit figure 9 twinkle to represent the work of the three-phase half-wave rectifying circuit, and the input three-phase alternating current is rectified into direct current.
The third-stage control switch is pressed, the relay J3 is electrified, the normally open contact switch of the relay J3 is closed, the relay J3 enables the negative electrode of the third-stage indicator lamp group 18 on the teaching board 1 to be grounded, the sixth group of indicator lamps 24 on the third arrow 14 twinkle to show that the rectified direct current is sent to the excitation winding of the next-stage main generator, and the seventh group of indicator lamps 25 of the winding of the main generator rotor schematic diagram 10 work to represent the excitation magnetic field to form the excitation magnetic field of the main generator. The eighth set of indicator lights 26 on the fourth arrow 15 blink to the next operation and the ninth set of indicator lights 27 on the winding of the schematic representation 11 corresponding to the stator of the main generator rotate to represent the three-phase ac output of the main generator, outputting ac voltage.
Pressing down fourth level control switch 70, relay J4 circular telegram, relay J4's normally open contact switch is closed, and relay J4 is with the ground connection of fourth level pilot lamp group 70 negative pole on the demonstrating board, and the tenth group pilot lamp 74 on the fifth arrow glimmers, shows that three-phase alternating current gives rectifier filter circuit, and the eleventh group 75 pilot lamp scintillation on the rectifier filter circuit diagram represents rectifier filter circuit work, output direct current.
Through the steps, multi-level hierarchical control is achieved, the current generation process is vividly simulated through the working sequence of the first group of indicator lights to the eleventh group of indicator lights, the working sequence of the brushless direct current generator of the airplane is displayed according to the steps, the working principle of the brushless direct current generator of the airplane is clear at a glance, students can clearly see the working process of the brushless direct current generator of the airplane, the operation is visual and simple, and deep impression is left for the students.
The control box 2 is also provided with a motor control switch 30, an excitation motor 31 is arranged in the center of the schematic diagram 8 of the direct-current exciter rotor, one end of the excitation motor 31 is connected with the output end of the first-stage control switch 4 through the motor control switch 30 and a relay J1, and the other end of the excitation motor 31 is connected with the input end of a normally-open contact switch of a relay J1. According to the technical scheme, the power supply control circuit has the advantages that the first-level control switch 4 is pressed, the coil of the relay J1 is electrified, the normally open contact switch of the relay J1 is closed, the power supply of the excitation motor 31 is controlled by the relay J1, the excitation motor 31 simulates the rotation of a rotating shaft, meanwhile, sound is emitted, a student knows that the direct-current excitation motor works, the work of the excitation motor 31 can be disconnected through the motor control switch 30, noise is reduced, and convenience is brought to teachers to explain.
The center of the main generator stator schematic diagram 11 is provided with a generating motor 32, one end of the generating motor 32 is connected with the output end of the third-stage control switch 6 through a motor control switch 30 and a relay J3, and the other end of the generating motor 32 is connected with the input end of a relay J3 normally open contact switch. According to the third level control switch 6, the coil of the relay J3 is electrified, the normally open contact switch of the relay J3 is closed, the power supply of the generator motor 32 is controlled by the relay J3, the generator motor 32 simulates the rotation of a rotating shaft, meanwhile, the sound is emitted, so that the student knows that the main generator works, the work of the generator motor 32 can be disconnected by the motor control switch 30, the noise is reduced, and the teacher can conveniently explain.
The motor control switch 30 is a normally closed button; the normally closed buttons can enable the relays J1 and J4 to automatically control the excitation motor 31 and the generation motor 32, and meanwhile, the excitation motor 31 and the generation motor 32 can be stopped simultaneously only by pressing the motor control switch 30 when noise is reduced.
The first to eleventh groups of indicator lights are LED lights. The LED lamp has low working voltage, convenient control and long service life.
The teaching board 1 is further provided with a brushless direct current generator schematic diagram 33 and a brushless direct current generator internal structure diagram 34. Therefore, teachers can explain the working principle of the brushless direct-current generator of the airplane more conveniently and visually.

Claims (6)

1. The utility model provides an aircraft brushless DC generator analogue means that imparts knowledge to students, includes demonstrating board and control box, its characterized in that: the control box is provided with a control circuit board, the control circuit board is provided with a first-stage control switch, a second-stage control switch, a third-stage control switch and a fourth-stage control switch, the teaching board is provided with a direct-current exciter stator schematic diagram, a direct-current exciter rotor schematic diagram, a three-phase half-wave rectification circuit diagram, a main generator rotor schematic diagram, a main generator stator schematic diagram and a rectification filter circuit, a first arrow pointing to the direct-current exciter rotor schematic diagram from the direct-current exciter stator schematic diagram is arranged between the direct-current exciter stator schematic diagram and the direct-current exciter rotor schematic diagram, a second arrow pointing to the three-phase half-wave rectification circuit diagram from the direct-current exciter rotor schematic diagram is arranged between the direct-current exciter rotor schematic diagram and the three-phase half-wave rectification circuit diagram, and a third arrow pointing to the main generator stator schematic diagram from the three-phase, a fourth arrow pointing to the schematic diagram of the stator of the main generator from the schematic diagram of the rotor of the main generator is arranged between the schematic diagram of the rotor of the main generator and the schematic diagram of the stator of the main generator, a fifth arrow pointing to the rectifying and filtering circuit from the schematic diagram of the stator of the main generator is arranged between the schematic diagram of the stator of the main generator and the rectifying and filtering circuit, a first-stage indicator lamp group, a second-stage indicator lamp group, a third-stage indicator lamp group and a fourth-stage indicator lamp group are arranged on the teaching board, the first-stage indicator lamp group comprises a first group of indicator lamps on a winding of the schematic diagram of the stator of the direct-current exciter controlled by a first-stage control switch, a second group of indicator lamps on the schematic diagram of the rotor of the direct-current exciter and a third group of indicator lamps on the first arrow, the second-stage indicator lamp group comprises a fourth, the third-stage indicator light group comprises a sixth group of indicator lights on a third arrow controlled by the third-stage control switch, a seventh group of indicator lights on a winding of the main generator rotor schematic diagram, an eighth group of indicator lights on a fourth arrow and a ninth group of indicator lights on a winding of the main generator stator schematic diagram, and the fourth-stage indicator light group comprises a tenth group of indicator lights on a fifth arrow controlled by the fourth-stage control switch and an eleventh group of indicator lights on the rectifying and filtering circuit; the control circuit board is also provided with a power button and a singlechip scintillator control box which are connected in sequence, the output end of the singlechip scintillator control box is connected with the anodes of the first to eleventh groups of indicator lamps through triodes, the power button is connected with a first-stage control switch, the first-stage control switch, a second-stage control switch, a third-stage control switch and a fourth-stage control switch are connected in sequence, the output end of the first-stage control switch is connected with one end of a coil of a relay J1, the output end of the second-stage control switch is connected with one end of a coil of a relay J2, the output end of the third-stage control switch is connected with one end of a coil of a relay J3, the output end of the fourth-stage control switch is connected with one end of a coil of a relay J4, the other ends of the coils of the relays J1, J2, J3 and J4 are grounded, the input end of a normally open contact switch of the relay J1 is connected with, the input of the normally open contact switch of the relay J3 is connected with the negative pole of the third-stage indicator light group, the input of the normally open contact switch of the relay J4 is connected with the negative pole of the fourth-stage indicator light group, and the output ends of the normally open contact switches of the relays J1, J2, J3 and J4 are grounded.
2. The aircraft brushless direct current generator teaching simulation device of claim 1, wherein: the control box is also provided with a motor control switch, the center of the schematic diagram of the DC exciter rotor is provided with an exciter, one end of the exciter is connected with the output end of the first-stage control switch through the motor control switch and a relay J1, and the other end of the exciter is connected with the input end of a relay J1 normally open contact switch.
3. An aircraft brushless DC generator teaching simulation apparatus according to claim 2, wherein: the center of the stator schematic diagram of the main generator is provided with a generating motor, one end of the generating motor is connected with the output end of the third-stage control switch through a motor control switch and a relay J4, and the other end of the generating motor is connected with the input end of a relay J4 normally open contact switch.
4. An aircraft brushless DC generator teaching simulation apparatus according to claim 3, wherein: the motor control switch is a normally closed button.
5. The aircraft brushless direct current generator teaching simulation device of claim 1, wherein: the first to eleventh groups of indicator lights are LED lights.
6. The aircraft brushless direct current generator teaching simulation device of claim 1, wherein: the teaching board is also provided with a brushless direct current generator schematic diagram and an internal structure diagram of the brushless direct current generator.
CN201822268483.XU 2018-12-31 2018-12-31 Teaching simulation device for brushless direct-current generator of airplane Expired - Fee Related CN209859434U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822268483.XU CN209859434U (en) 2018-12-31 2018-12-31 Teaching simulation device for brushless direct-current generator of airplane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822268483.XU CN209859434U (en) 2018-12-31 2018-12-31 Teaching simulation device for brushless direct-current generator of airplane

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Publication Number Publication Date
CN209859434U true CN209859434U (en) 2019-12-27

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Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111477079A (en) * 2020-04-10 2020-07-31 杭州电子科技大学 Brushless DC motor demonstration teaching aid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111477079A (en) * 2020-04-10 2020-07-31 杭州电子科技大学 Brushless DC motor demonstration teaching aid

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