CN204406847U - A kind of three-phase alternating current experiment module - Google Patents
A kind of three-phase alternating current experiment module Download PDFInfo
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- CN204406847U CN204406847U CN201520094184.2U CN201520094184U CN204406847U CN 204406847 U CN204406847 U CN 204406847U CN 201520094184 U CN201520094184 U CN 201520094184U CN 204406847 U CN204406847 U CN 204406847U
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- reducing
- alternating current
- speed
- control circuit
- motor driver
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Abstract
The utility model discloses a kind of three-phase alternating current experiment module, comprises the threephase alternator module be integrated on a brassboard, DC motor Driver control circuit, three-phase transformer, toggle switch and LED load; The threephase alternator that threephase alternator module is comprised DC speed-reducing and is connected by shaft joint with DC speed-reducing; DC speed-reducing is also connected with DC motor Driver control circuit.Threephase alternator module, DC motor Driver control circuit, three-phase transformer, toggle switch, LED load are integrated on a little brassboard by the utility model, can be placed on easily and carry out testing in laboratory or classroom and impart knowledge to students, facilitate the experiment contents such as the generation of Students ' Learning three-phase alternating current, three-phase transformer principle, the input and output method of attachment of three-phase transformer and the load characteristic of threephase alternator and three-phase transformer.
Description
Technical field
The utility model relates to experimental teaching equipment field, is specifically related to a kind of three-phase alternating current experiment module.
Background technology
In three-phase alternating current experimental teaching equipment, current product category is little, and the module integrations such as the generation of alternating current, voltage raising and reducing three-phase transformer cannot be come on an experimental facilities, traditional threephase alternator and three-phase transformer volume large, power is high, voltage is high, easily cause danger during experiment, experimental cost is also higher, brings much inconvenience to experimental teaching.
Utility model content
For solving the problem, the utility model provides a kind of and the experiment contents such as the input and output method of attachment of the generation of three-phase alternating current, three-phase transformer principle, three-phase transformer and the load characteristic of threephase alternator and three-phase transformer is integrated in three-phase alternating current experiment module on a little brassboard.
The technical solution of the utility model is: a kind of three-phase alternating current experiment module, comprises the threephase alternator module be integrated on a brassboard, DC motor Driver control circuit, three-phase transformer, toggle switch and LED load; The threephase alternator that threephase alternator module is comprised DC speed-reducing and is connected by shaft joint with DC speed-reducing; DC speed-reducing is also connected with DC motor Driver control circuit.
Further, the placement location of each device on brassboard of experiment module is: connect DC speed-reducing by shaft joint on the right side of threephase alternator, three-phase transformer, LED load, DC motor Driver control circuit and toggle switch on the downside of threephase alternator and DC speed-reducing, LED load is on the right side of three-phase transformer, DC motor Driver control circuit and toggle switch are on the right side of LED load, DC motor Driver control circuit and toggle switch are arranged above and below, and DC motor Driver control circuit is on the upside of toggle switch.
Further, three-phase transformer has three groups of windings doing three-phase alternating current experiment, and these three groups of windings are arranged above and below; By another group winding in parallel for a group in above-mentioned three groups of windings, and be placed on the right side of one group, top side in above-mentioned three groups of windings, for doing the related experiment of single transformer; The downside of another group winding is LED load.
Further, all input and output of this experiment module are all independently drawn out on corresponding terminal.
Preferably, three-phase transformer is miniature three-phase transformer, and DC speed-reducing is minisize dc reducing motor, and threephase alternator is miniature threephase alternator.
Preferably, regulator potentiometer is set to regulate the input voltage of DC speed-reducing, for controlling the rotating speed of DC speed-reducing in DC motor Driver control circuit.
Preferably, integrated three-port variable voltage regulator LM317 in DC motor Driver control circuit connects diode to prevent output voltage higher than damaging integrated three-port variable voltage regulator LM317 during input voltage, the negative pole of diode is connected with the input end of integrated three-port variable voltage regulator LM317, and positive pole is connected with the output terminal of integrated three-port variable voltage regulator LM317.
Preferably, the toggle switch toggle switch that adopts three roads simultaneously controlled.
A kind of three-phase alternating current experiment module of the present utility model, compared with prior art, there is following beneficial effect: adopt minisize dc reducing motor, miniature threephase alternator and miniature three-phase transformer, threephase alternator module, DC motor Driver control circuit, three-phase transformer, toggle switch, LED load are integrated on a little brassboard, can be placed on easily and carry out testing in laboratory or classroom and impart knowledge to students; All input-output lines of three-phase transformer are drawn out on panel, during convenient experiment, connect into different circuit; Adopt LED load to mate the power of three phase generator; Adopt the toggle switch that three roads are simultaneously controlled, for switching or connect LED load simultaneously; Adopting regulator potentiometer to regulate the input voltage of DC speed-reducing, for controlling the rotating speed of DC speed-reducing, thus controlling the parameter such as voltage, frequency, power of three-phase alternating current.The utility model is convenient and practical, cost is low, facilitate the experiment contents such as the generation of Students ' Learning three-phase alternating current, three-phase transformer principle, the input and output method of attachment of three-phase transformer and the load characteristic of threephase alternator and three-phase transformer, be beneficial to the quality of instruction improving electrician, Electronics course in the tertiary vocational school, secondary vocational school.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model specific embodiment.
Fig. 2 is the circuit diagram of DC motor Driver control circuit in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is described in further detail.
As shown in Figure 1, a kind of three-phase alternating current experiment module, comprises the threephase alternator module be made up of DC speed-reducing 1 and threephase alternator 3, three-phase transformer 4, LED load 5, toggle switch 6, the DC motor Driver control circuit 7 that are integrated on a little brassboard.Wherein, DC speed-reducing 1 is connected by shaft joint 2 with threephase alternator 3, DC speed-reducing 1 is also connected with DC motor Driver control circuit 7, and DC speed-reducing 1 is minisize dc reducing motor, threephase alternator 3 is miniature threephase alternators, and three-phase transformer 4 is miniature three-phase transformers.Meanwhile, LED load 5 comprises three LED, and to mate the power of three phase generator 4, the toggle switch that toggle switch 6 adopts three roads simultaneously controlled, for switching or connect LED load simultaneously.All input and output of this experiment module are all independently drawn out on corresponding terminal, circle as shown in Figure 1, to connect into different circuit when testing.
The each device of this experiment module on brassboard placement be: connect DC speed-reducing 1 by shaft joint 2 on the right side of threephase alternator 3; The downside of threephase alternator 3 and DC speed-reducing 1 is three-phase transformer 4, LED load 5, toggle switch 6 and DC motor Driver control circuit 7; Wherein three-phase transformer 4 is in the leftmost side, its four groups of winding 4-1 on the right side of three-phase transformer 4, wherein three groups are used for doing three-phase alternating current experiment, be placed on left side and be arranged above and below, by another group winding in parallel for a group in above-mentioned three groups of windings, and be placed on the right side of one group, top side in above-mentioned three groups of windings, for doing the related experiment of single transformer; The downside of another group winding above-mentioned is LED load 5, and three LED of LED load 5 are arranged above and below; The right side of LED load 5 and another group input and output terminal above-mentioned is the DC motor Driver control circuit 7 and toggle switch 6 that are arranged above and below, and DC motor Driver control circuit 7 is on the upside of toggle switch 6.
Be the circuit diagram of DC motor Driver control circuit 7 as shown in Figure 2, in this circuit, J3, J4 terminal is for connecting external communication 15 volts of adapters; Br1 is silicon bridge, for carrying out rectification to alternating current, makes it the direct current becoming pulsation; Capacitor C1, C3 are used for filtering, and the direct current of pulsation is become level and smooth direct current; U1 is the output voltage that integrated three-port variable voltage regulator LM317, resistance R1 and potentiometer RP1 are combined for regulating integrated three-port variable voltage regulator LM317, output voltage Vo=1.25(1+R1/RP1); C2, C4 are voltage stabilizing output filter capacitors; FUSE1 is resettable fuse, be short-circuited for circuit or overcurrent time protection; LED4 is output voltage pilot lamp, and brightness changes along with the change of output voltage.Connect diode D1 at integrated three-port variable voltage regulator LM317 two ends to prevent output voltage higher than damaging integrated three-port variable voltage regulator LM317 during input voltage, the negative pole of diode D1 is connected with the input end of LM317, and positive pole is connected with the output terminal of LM317.Diode D2 is fly-wheel diode, for providing discharge loop when input circuit turns off to output circuit, to protect integrated three-port variable voltage regulator LM317.Load due to this driving circuit is direct current generator, belong to inductive load, from Lenz's theorem, when input circuit disconnects, direct current generator will produce electromotive force, polarity of voltage parallel connected in reverse phase, in output loop, if do not have diode D2, just may damage integrated three-port variable voltage regulator LM317.
Regulator potentiometer RP1 changes the output voltage of integrated three-port variable voltage regulator LM317, namely regulates the input voltage of DC speed-reducing 1, for controlling the rotating speed of DC speed-reducing 1, and then controls the parameter such as voltage, frequency, power of three-phase alternating current.
When using this experiment module to test, the control power drives DC speed-reducing 1 that DC motor Driver control circuit 7 exports is rotated, and drives threephase alternator 3 synchronous operation by shaft joint 2.The output voltage of threephase alternator 3 can control LED load 5 through toggle switch 6, also can connect three-phase transformer 4 and boost or step-down, then driving LED load 5.
This experiment module is by the connection of different terminal, the generation of three-phase alternating current, electromotive force test, frequency test, load testing can be realized, three-phase transformer principle of work, polarity test, test on winding turns ratio, short-circuit test, open test, the experiment content such as three-phase transformer Y-Y, Y-△, Y-Z, △-△, △-Z connection.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. a three-phase alternating current experiment module, is characterized in that, comprises the threephase alternator module be integrated on a brassboard, DC motor Driver control circuit, three-phase transformer, toggle switch and LED load; The threephase alternator that described threephase alternator module is comprised DC speed-reducing and is connected by shaft joint with DC speed-reducing; Described DC speed-reducing is also connected with DC motor Driver control circuit.
2. a kind of three-phase alternating current experiment module according to claim 1, it is characterized in that, the placement location of each device on brassboard of this experiment module is: connect DC speed-reducing by shaft joint on the right side of threephase alternator, three-phase transformer on the downside of threephase alternator and DC speed-reducing, LED load, DC motor Driver control circuit and toggle switch, LED load is on the right side of three-phase transformer, DC motor Driver control circuit and toggle switch are on the right side of LED load, DC motor Driver control circuit and toggle switch are arranged above and below, DC motor Driver control circuit is on the upside of toggle switch.
3. a kind of three-phase alternating current experiment module according to claim 1 and 2, is characterized in that, described three-phase transformer has three groups of windings doing three-phase alternating current experiment, and these three groups of windings are arranged above and below; By another group winding in parallel for a group in above-mentioned three groups of windings, and be placed on the right side of one group, top side in above-mentioned three groups of windings, for doing the related experiment of single transformer; The downside of another group winding described is LED load.
4. a kind of three-phase alternating current experiment module according to claim 3, is characterized in that, all input and output of this experiment module are all independently drawn out on corresponding terminal.
5. a kind of three-phase alternating current experiment module according to claim 1 and 2, it is characterized in that, described three-phase transformer is miniature three-phase transformer, and described DC speed-reducing is minisize dc reducing motor, and described threephase alternator is miniature threephase alternator.
6. a kind of three-phase alternating current experiment module according to claim 1 and 2, is characterized in that, arranges regulator potentiometer to regulate the input voltage of DC speed-reducing, for controlling the rotating speed of DC speed-reducing in described DC motor Driver control circuit.
7. a kind of three-phase alternating current experiment module according to claim 1, it is characterized in that, integrated three-port variable voltage regulator LM317 in described DC motor Driver control circuit connects diode to prevent output voltage higher than damaging integrated three-port variable voltage regulator LM317 during input voltage, the negative pole of described diode is connected with the input end of integrated three-port variable voltage regulator LM317, and positive pole is connected with the output terminal of integrated three-port variable voltage regulator LM317.
8. a kind of three-phase alternating current experiment module according to claim 1 and 2, is characterized in that, the toggle switch that described toggle switch adopts three roads simultaneously controlled.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520094184.2U CN204406847U (en) | 2015-02-10 | 2015-02-10 | A kind of three-phase alternating current experiment module |
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| CN201520094184.2U CN204406847U (en) | 2015-02-10 | 2015-02-10 | A kind of three-phase alternating current experiment module |
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| CN204406847U true CN204406847U (en) | 2015-06-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992599A (en) * | 2015-07-24 | 2015-10-21 | 黄克亚 | AC motor dynamic braking experimental board |
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2015
- 2015-02-10 CN CN201520094184.2U patent/CN204406847U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992599A (en) * | 2015-07-24 | 2015-10-21 | 黄克亚 | AC motor dynamic braking experimental board |
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