CN201673212U - Motor steering test device - Google Patents
Motor steering test device Download PDFInfo
- Publication number
- CN201673212U CN201673212U CN2009201043386U CN200920104338U CN201673212U CN 201673212 U CN201673212 U CN 201673212U CN 2009201043386 U CN2009201043386 U CN 2009201043386U CN 200920104338 U CN200920104338 U CN 200920104338U CN 201673212 U CN201673212 U CN 201673212U
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- CN
- China
- Prior art keywords
- circuit
- phase
- output
- input
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Control Of Electric Motors In General (AREA)
Abstract
A motor steering test device comprises an amplifying circuit, a rectifying circuit, a phase comparison circuit and a display circuit, and is characterized in that output of the amplifying circuit is connected with input of the rectifying circuit, output of the rectifying circuit is connected with input of the phase comparison circuit, output of the phase comparison circuit is connected with input of the display circuit, the amplifying circuit consists of a calculation amplifier and a resistor on the periphery of the calculation amplifier, the rectifying circuit consists of a voltage comparer and a resistor on the periphery of the voltage comparer, the phase comparison circuit consists of a D-trigger, and a capacitor and a resistor on the periphery of the D-trigger, and the display circuit consists of a triode, a diode and a resistor on the periphery of the diode. The motor steering test device has the advantages that 1, stator winding phase sequence of normal steering of a motor can be accurately measured in advance so as to increase wiring working efficiency, 2, the device has less elements, low cost and small volume, and is convenient to carry and use, and 3, the device can measure three-phase industrial electricity phase sequence.
Description
Technical field
The utility model is specifically related to a kind of motor slew test device.
Background technology
At present, when using threephase motor, be the rotation direction that guarantees that it is correct, just run into the wiring phase sequence problem between three phase lines of power supply and three connection terminals of motor.If any a pair of phase line is exchanged, all can cause the motor sense of rotation to change.In addition, on engineering, the motor of different capacity, cable require crimping different model wiring nose.If counter-rotating appears in threephase motor, change wiring so after, wiring nose position is often improper, has to amputate reclosing.Therefore, can determine that before wiring the small and exquisite instrument of motor windings phase sequence is very important.
Summary of the invention
The utility model provides a kind of motor slew test device, its objective is before the motor operation to judge threephase motor stator winding phase sequence quickly and accurately according to predetermined the turning to of motor.
The purpose of this utility model be achieved in that it by amplification, shaping, phase bit comparison, show that the level Four circuit forms, it is characterized in that the output of amplifying circuit connects the input of shaping circuit, the output of shaping circuit connects the input of phase-comparison circuit, and the output of phase-comparison circuit connects the input of display circuit.
Described amplifying circuit is made up of operational amplifier and peripheral resistance thereof;
Described shaping circuit is made up of voltage comparator and peripheral resistance thereof;
Described phase-comparison circuit is made up of D-trigger and peripheral electric capacity thereof and resistance;
Described display circuit is made up of triode and diode and peripheral resistance thereof;
Principle of work of the present utility model is: at the uniform velocity stir motor with hand, and motor stator one winding earth, two faint sine voltage signals of two windings generation are added to the positive input terminal of two amplifiers respectively in addition, to amplify its sine voltage; The sine voltage that has amplified links to each other with the negative input end of voltage comparator, so that with sine wave shaped be square wave; Square wave after the shaping is squeezed into the D line of two D-triggers respectively, at its output Q end two square wave phase of D end is compared, and D-trigger output terminal Q links to each other with the output stage triode respectively by resistance; And one road transistor collector load is the light emitting diode of three different color codes of mutual series connection, and another road transistor collector load is a single color LED; Three led lightings of series connection show that then phase sequence is a positive sequence, and the luminous phase sequence that then shows of another single color LED is an inverted sequence, show thereby reach phase sequence.
The utlity model has following advantage: 1, accurately measure the stator winding phase sequence of motor normal direction of rotation in advance, improve the wiring work efficiency.2, this instrument element is few, and cost is low, and volume is little, is easy to carry, and is easy to use.3, can measure three-phase industrial electro phase sequence.
Description of drawings:
Fig. 1 the utility model circuit diagram.
Embodiment
Embodiment: shown in Figure 1, present embodiment is made up of amplification, shaping, phase bit comparison and demonstration level Four circuit.
Amplifying circuit is by operational amplifier A
1, A
2And peripheral resistance R
1, R
2, R
3, R
7, R
8, R
9Form, be used to amplify the faint sine voltage that stator winding produces.
Shaping circuit is by open-collector voltage comparator A
3, A
4And peripheral resistance R
4, R
5, R
6, R
10, R
11, R
12, R
13, R
14The schmidt shaping circuit of forming, this circuit is a square wave with sine wave shaped.R
13, R
14Be pull-up resistor.
Phase-comparison circuit is by D-trigger D
1, D
2And peripheral capacitor C and resistance R
15Form, be used for the leading and lagged relationship of two square waves of comparison.This circuit capacitance C and resistance R
15Play reset response, when this contactor S is closed, reset terminal r
1, r
2Moment noble potential, make Q
1Q
2Be in original electronegative potential stand-by state.
Display circuit is by triode VT
1, VT
2, resistance R
16, R
17, R
18, R
11And light emitting diode, be pilot lamp VD again
1-VD
4Form, to show input signal phase order relation.
Substitutional resistance R
20And R
21Be divider resistance, to take out the instrument ground wire.Instrument power source can be selected laminated battery for use.
As voltage comparator A
3Output waveform leading voltage comparer A
4During output waveform, D
1Trigger output terminal Q
1Be high voltage, and D
2Trigger output terminal Q
2Be electronegative potential.At this moment, triode VT
1Conducting, pilot lamp VD
1, VD
2And VD
3Shinny, the voltage-phase of this explanation the top input end is leading.The resistance R of connecting wherein with pilot lamp
7It is current-limiting resistance.
Otherwise, work as A
4The leading A of output wave
3During output waveform, Q
2Be high voltage, and Q
1Be electronegative potential.Q
2High level through R
18Current limliting makes triode VT
2Conducting, pilot lamp VD
4Shinny.At this moment, illustrate that following input terminal voltage phase place is leading.Resistance R wherein
19It is current-limiting resistance.
Uppermost input terminal is used green with yellow, following input end, and line selection redness instrumentally.And pilot lamp VD
1, VD
2, VD
3Select for use yellow, green, if these three pilot lamp of red trichromatism are bright, illustrate that the three-winding line look of motor stator that two input ends and instrument ground wire connect should be yellow, green, red trichromatism.At this moment yellow line is phase line u, and green line is phase line v, and the ground wire red line is phase line w.This three look just consistent with China electrical standard.
Pilot lamp VD
4Color does not have specific (special) requirements, VD
4Bright, illustrate that the motor stator winding phase sequence is a negative-phase sequence, need wherein any two wires should change into correct phase order relation.
The element model that present embodiment is selected:
Claims (1)
1. motor slew test device, it is by amplification, shaping, the phase bit comparison, show level Four circuit composition, it is characterized in that the output of amplifying circuit connects the input of shaping circuit, the output of shaping circuit connects the input of phase-comparison circuit, the output of phase-comparison circuit connects the input of display circuit, amplifying circuit is made up of operational amplifier and peripheral resistance thereof, shaping circuit is made up of voltage comparator and peripheral resistance thereof, phase-comparison circuit is made up of D-trigger and peripheral electric capacity thereof and resistance, and display circuit is made up of triode and diode and peripheral resistance thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201043386U CN201673212U (en) | 2009-08-19 | 2009-08-19 | Motor steering test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201043386U CN201673212U (en) | 2009-08-19 | 2009-08-19 | Motor steering test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201673212U true CN201673212U (en) | 2010-12-15 |
Family
ID=43330624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201043386U Expired - Lifetime CN201673212U (en) | 2009-08-19 | 2009-08-19 | Motor steering test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201673212U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743962A (en) * | 2013-11-21 | 2014-04-23 | 成都市宏山科技有限公司 | Reversing status monitoring circuit for transmission belt motor |
| CN104808009A (en) * | 2015-05-06 | 2015-07-29 | 成都诚邦动力测试仪器有限公司 | Motor speed measuring system based on phase processing |
| CN114384273A (en) * | 2021-11-29 | 2022-04-22 | 浙江亚特电器股份有限公司 | Method and system for detecting positive and negative rotation of direct-current brushless motor |
-
2009
- 2009-08-19 CN CN2009201043386U patent/CN201673212U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743962A (en) * | 2013-11-21 | 2014-04-23 | 成都市宏山科技有限公司 | Reversing status monitoring circuit for transmission belt motor |
| CN104808009A (en) * | 2015-05-06 | 2015-07-29 | 成都诚邦动力测试仪器有限公司 | Motor speed measuring system based on phase processing |
| CN114384273A (en) * | 2021-11-29 | 2022-04-22 | 浙江亚特电器股份有限公司 | Method and system for detecting positive and negative rotation of direct-current brushless motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101215 |