CN109212412A - Alternating current motor test device and alternating current motor test method - Google Patents
Alternating current motor test device and alternating current motor test method Download PDFInfo
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- CN109212412A CN109212412A CN201710542395.1A CN201710542395A CN109212412A CN 109212412 A CN109212412 A CN 109212412A CN 201710542395 A CN201710542395 A CN 201710542395A CN 109212412 A CN109212412 A CN 109212412A
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention discloses a kind of alternating current motor test devices, are suitable for motor to be measured, and motor to be measured has multiple magnetic pole strengths and an at least motor coil, and the alternating current motor test device includes test circuit, magnetic induction module and switching circuit.Circuit is tested to provide AC test signals by test signal output port.Magnetic induction module includes an at least induction coil and respectively an at least induction coil all has sense magnetic side, which, which is used to feel magnetic side with it, selectively aligns those magnetic pole strengths.Current path of the switching circuit to continuity test circuit and motor to be measured, AC test signals are made to be transferred into an at least motor coil, multiple inductive signals are obtained by an at least induction coil and an at least motor coil accordingly, and those inductive signals are back to test circuit by inductive signal input port.
Description
Technical field
The present invention is about a kind of motor testing apparatus and its test method, especially a kind of magnetic pole shape for alternating current motor
The alternating current motor test device and its test method of state.
Background technique
In general, alternating current motor is mainly made of stator and rotor, and function mode is to provide alternating voltage to give
Son drives rotor to be rotated whereby so that the magnetic pole inside alternating current motor generates magnetic field.However, in the design of motor
In the process, motor coil may be accidentally placed on yoke with opposite direction by relevant manufacturer due to the careless mistake of certain operations, into
And make the polarity of one or more magnetic poles inside motor on the contrary, finally resulting in the Operating ettectiveness of motor reduces and affect motor
Quality.
Although existing motor testing apparatus can be by providing alternating voltage to stator, then the running for rotor of arranging in pairs or groups, with
As the method for stator slew test, however above-mentioned existing motor testing apparatus and it can not detect motor coil above-mentioned
The exception of magnetic pole caused by causing on coil opposite direction merging yoke because of artificial careless mistake, more leisure opinion are intended to entangle by testing mechanism
The coil being reversely misplaced simultaneously further is inverted back normal orientation by mistake.
Summary of the invention
The present invention proposes a kind of alternating current motor test device and alternating current motor test method, can be by induction coil and motor
Electromagnetic induction between coil, to obtain the Distribution of Magnetic Field information of multiple magnetic poles, therefore, it is determined that whether the magnetic pole of motor has exception.
An embodiment according to the present invention discloses a kind of alternating current motor test device, is suitable for motor to be measured.Described is to be measured
Motor has multiple magnetic pole strengths and an at least motor coil.The alternating current motor test device includes test circuit, magnetic induction
Module and switching circuit.Testing circuit has test signal output port and inductive signal input port.The test circuit
To provide AC test signals by the test signal output port.The magnetic induction module is electrically connected test circuit,
Magnetic induction module includes an at least induction coil and respectively an at least induction coil all has sense magnetic side.At least one induction
Coil is used to selectively align those magnetic pole strengths with the sense magnetic side.The switching circuit is electrically connected test circuit, switching
Current path of the circuit to continuity test circuit and motor to be measured makes AC test signals be transferred into an at least horse
Up to coil, multiple inductive signals are obtained by an at least induction coil and an at least motor coil accordingly, and those inductive signals are logical
It crosses inductive signal input port and is back to test circuit.Wherein those inductive signals are associated with magnetic field strength information, and described
Magnetic field strength information judges whether motor to be measured is abnormal for making comparisons with default Magnetic Field accordingly.
An embodiment according to the present invention discloses a kind of alternating current motor test method, be suitable for alternating current motor test device with
Motor to be measured.The motor to be measured has multiple magnetic pole strengths and an at least motor coil.The alternating current motor test method
Include: running rotating device and test circuit to repeat magnetic field strength test program, until test circuit measured pair
It should be in multiple magnetic field strength information of those all magnetic pole strengths, wherein the magnetic field strength test program includes: with the rotation
Device aligns an induction coil one of to those magnetic pole strengths, and the magnetic pole strength that wherein induction coil is aligned is the test circuit
Not yet obtain the magnetic pole strength of corresponding magnetic field strength information；Then, it is right to measure to correspond to induction coil by test amount of circuitry
The magnetic field strength information of the magnetic pole strength of position.
An embodiment according to the present invention discloses a kind of alternating current motor test method, be suitable for alternating current motor test device with
Motor to be measured, the motor to be measured have multiple magnetic pole strengths, alternating current motor test device include multiple inductions switching switch and
Multiple induction coils, corresponding one in those magnetic poles of each each artoregistration of induction coil.The alternating current motor test method
It include: those induction switching switches of running and test circuit to repeat magnetic field strength test program, until test circuit is
Measure to correspond to multiple magnetic field strength information of those all magnetic pole strengths.Wherein magnetic field strength test program includes: with those
A corresponding induction coil is to the electric current road of the test circuit among one of the induction switching switch multiple induction coil of conducting
Diameter, wherein the magnetic pole strength that corresponding induction coil is aligned is the magnetic pole tested circuit and not yet obtain corresponding magnetic field strength information
Face；Then, measure to correspond to the magnetic field strength information for the magnetic pole strength that corresponding induction coil is aligned by test amount of circuitry.
It, can be by summary, in alternating current motor test device of the invention and alternating current motor test method
By induction coil possessed by alternating current motor test device to the magnetic pole for being located at motor, so that the induction coil and motor wire
Electromagnetic induction is generated between circle.Then, the induction coil can return inductive signal according to electromagnetic induction, and then make to exchange
Motor testing apparatus obtains the Distribution of Magnetic Field information of multiple magnetic poles inside motor.Finally, can based on Distribution of Magnetic Field information with
The comparison of preset Distribution of Magnetic Field information, therefore, it is determined that the magnetic pole of motor whether the phenomenon of polarized exception.
The explanation of explanation and following implementation above with respect to the content of present invention is to demonstrate and explain essence of the invention
Mind and principle, and claims of the present invention is provided and is further explained.
Detailed description of the invention
Fig. 1 is alternating current motor test device and the function block of motor to be measured depicted in an embodiment according to the present invention
Figure.
Fig. 2 is the schematic internal view of motor to be measured depicted in Fig. 1 embodiment according to the present invention.
Fig. 3 is alternating current motor test device depicted in an embodiment according to the present invention and the circuit framework of motor to be measured
Figure.
Fig. 4 is the schematic internal view of motor to be measured depicted in Fig. 3 embodiment according to the present invention.
Fig. 5 A is magnetic field strength information distributing plan depicted in an embodiment according to the present invention.
Fig. 5 B is magnetic field strength information distributing plan depicted in another embodiment according to the present invention.
Fig. 6 is alternating current motor test device depicted in another embodiment according to the present invention and the circuit frame of motor to be measured
Composition.
Fig. 7 is the schematic internal view of motor to be measured depicted in Fig. 6 according to the present invention.
Fig. 8 A is the flow chart of alternating current motor test method depicted in an embodiment according to the present invention.
Fig. 8 B is the flow chart of the magnetic field strength test program of Fig. 8 A according to the present invention.
Fig. 8 C is the flow chart of the magnetic field strength test program of another embodiment according to the present invention.
Fig. 9 A is the flow chart of alternating current motor test method depicted in another embodiment according to the present invention.
Fig. 9 B is the flow chart of the magnetic field strength test program of Fig. 9 A according to the present invention.
Fig. 9 C is the flow chart of the magnetic field strength test program of another embodiment according to the present invention.
Wherein, appended drawing reference:
1,3,5: alternating current motor test device
10,30,50: test circuit
12,32,52: induction module
121,321,521~5236: induction coil
14,34,54: switching circuit
2,4,6: motor to be measured
21~23,41~43,61~63: motor coil
P1: test signal output port
P2: inductive signal input port
301,501: alternating message source
302,502: voltage sensor
32,52: magnetic induction module
321,521~5236: induction coil
36: rotating device
361: pedestal
363: support sector
D1, D1 '~D3, D3 ', D4, D4 '~D6, D6 ': the first switching switch
S1, S1 '~S3, S3 ', S4, S4 '~S6, S6 ': the second switching switch
V1, V1 ', V3, V3 ': voltage sensing switch
V2, V2 ', V4, V4 ': switching switch
T1, T1 '~T36, T36 ': induction switching switch
M1~M36: magnetic pole
L1~L3: sensing value
Specific embodiment
Describe detailed features and advantage of the invention in detail in embodiments below, content is enough to make any ability
The technical staff in domain understands technology contents of the invention and implements accordingly, and is wanted according to content disclosed in this specification, right
Protection scope and attached drawing are asked, any those skilled in the art can be readily understood upon the relevant purpose of the present invention and advantage.Below
The embodiment viewpoint that present invention be described in more detail, but it is non-anyways to limit scope of the invention.
It is alternating current motor test device depicted in an embodiment according to the present invention please with reference to Fig. 1 and Fig. 2, Fig. 1
And the functional block diagram of motor to be measured, and Fig. 2 is the inside signal of motor to be measured depicted in Fig. 1 embodiment according to the present invention
Figure.As shown in Figures 1 and 2, alternating current motor test device 1 is suitable for motor 2 to be measured.Motor 2 to be measured have multiple magnetic pole strengths and
An at least motor coil.In general, motor 2 to be measured usually has multiple magnetic poles, such as Fig. 1 and magnetic pole M1 shown in Fig. 2~
M36 has individually corresponding magnetic pole strength MS1~MS36 (not shown), and motor coil 21 is provided on magnetic pole M1~M36
~23, for receiving alternating voltage, generate corresponding magnetic field accordingly to drive rotor to rotate.The alternating voltage can be with
Single-phase or multiphase form is presented, and the number of motor coil corresponds to the number of phases of voltage.It is to be measured for Fig. 1 embodiment
Three motor coils 21~23 of motor 2 respectively correspond reception three-phase alternating voltage.Illustrate motor 2 to be measured with concrete instance
Magnetic pole framework, magnetic pole M1~M3 can be respectively set motor coil 21~23 and respectively receive the voltage of out of phase.Similarly, magnetic
Pole M4~M6 can be respectively set motor coil 21~23 and respectively receive the voltage of out of phase, and so on.
Alternating current motor test device 1 provided by the invention includes test circuit 10, magnetic induction module 12 and switching circuit
14.Testing circuit 10 has test signal output port P1 and inductive signal input port P2, and test circuit 10 is surveyed to pass through
Trial signal output port P1 provides AC test signals.AC test signals described herein are three-phase alternating voltage, however in
In other embodiments, AC test signals can be the alternating voltage of single-phase or multiphase (being greater than three-phase).12 electricity of magnetic induction module
Property connecting test circuit 10, for Fig. 1 and Fig. 2 embodiment, magnetic induction module 12 includes induction coil 121, and induction coil
121 one end is a sense magnetic side.Induction coil 121, which is used to feel magnetic side with it, selectively aligns those magnetic pole strengths MS1~MS36
One of them, such as the magnetic pole strength MS1 of magnetic pole M1 shown in Fig. 2.
Switching circuit 14 is electrically connected test circuit 10, and switching circuit 14 is to continuity test circuit 10 and motor 2 to be measured
Current path, allow AC test signals that can be transferred into motor coil 21~23, accordingly by induction coil 121 and motor wire
Circle 21~23 obtains multiple inductive signals.Specifically, when the current path is connected in switching circuit 14, motor coil 21~
23 received in sequence to respective phase voltage, and with induction coil 121 generate electromagnetic induction and sequentially generate multiple inductive signals.
Those inductive signals are back to test circuit 10 by inductive signal input port P2.Those inductive signals are associated with contraposition and exist
Magnetic field strength information when magnetic pole strength MS1.Then, induction coil 121 can be aligned to another magnetic pole strength, such as magnetic pole strength MS2,
And the magnetic field strength information for being associated with and aligning in magnetic pole strength M2 is obtained in the same manner, and so on until obtaining all magnetic
The magnetic field strength information of pole M1~M36.Those acquired magnetic field strength information can be used for making comparisons with default Magnetic Field.When
When the two is not met, that is, it can determine whether that certain magnetic poles of motor 2 to be measured are abnormal.It should be noted that described in aforementioned selectively
Aligning multiple magnetic pole strengths can refer to using single induction coil selectively respectively to multiple magnetic poles are located at, as Fig. 1 and Fig. 2 is real
It applies example to align as an example with magnetic pole strength MS1~MS36 respectively with single induction coil 121, but in other embodiments,
The aforementioned described multiple magnetic pole strengths of selectively contraposition can refer to corresponds multiple magnetic poles using multiple induction coils respectively.It lifts
Example for, in other examples, the magnetic induction module 12 of Fig. 1 may include multiple induction coils (36), individually align to
The sense magnetic side of magnetic pole strength MS1~MS36, to obtain the magnetic field strength information of each magnetic pole strength.On how to believe according to magnetic field strength
Breath judge with the comparison result of default Magnetic Field motor to be measured magnetic pole whether Yi Chang specific means, will be in subsequent section
Fall middle explanation.
Referring to figure 3., Fig. 3 is alternating current motor test device and motor to be measured depicted in an embodiment according to the present invention
Circuit framework figure.Test circuit 30, magnetic induction module 32 included by alternating current motor test device 3 shown in Fig. 3 embodiment
And switching circuit 34 and motor to be measured 4 configuration and function it is roughly the same with Fig. 1 embodiment.Only in the embodiment of Fig. 3 into one
It includes that multiple groups first switch switch D1, D1 '~D3, D3 that step, which discloses switching circuit 34, ' and the switching of multiple groups second switch S1, S1 '
~S3, S3 '.The multiple groups first switch switch D1, D1 '~D3, D3 ' and the switching of multiple groups second switch S1, S1 '~S3, S3 '
For controlling the on state of test circuit 30 to motor coil 41~43.Test circuit 30 include alternating message source 301, all
Change unit (including switching switch V2 and V2 ') and voltage sensor 302.With the group first for being connected to motor coil 41
Switch switch D1, D1 ' and the group second switching switch S1, S1 ' for, first switching switch D1, D1 ' is for selectively will
Alternating message source 301 is electrically connected to motor coil 41, and second switching switch S1, S1 ' is then for selectively by motor wire
Circle 41 is electrically connected to voltage sensor 302.
Alternating message source 30 is electrically connected multiple groups first and switches switch D1, D1 '~D3, D3 ', and first to be cut in those
AC test signals are provided to motor coil 41~43 when '~D3, D3 ' conducting of changing switch D1, D1.Switch unit (including switching
Switch V2 and V2 ') there is one end to be electrically connected at induction coil 321.Voltage sensor 302 is electrically connected the second switching switch
S1, S1 '~S3, S3 ' and switch unit (including switch switch V2 and V2 ') the other end.Voltage sensor 302 is in second
Switching switch S1, S1 '~S3, S3 ' and switch unit (including switching switch V2 and V2 ') receive multiple inductive signals when being connected.
Those inductive signals include first voltage information and second voltage information individually, and the first voltage information and second voltage are believed
Breath is for generating magnetic field strength information.In an embodiment, as shown in Fig. 2, test circuit 30 further may include having one group of electricity
Press sense switch V1, V1 ', one end is connected to voltage sensor 302, the other end be connected to the second switching switch S1, S1 '~S3,
S3 ' measures voltage sensor 302 for being connected together when second switching switch S1, S1 '~S3, S3 ' is connected
Obtain the voltage value of motor coil 41~43.In an example, when determine second switching switch S1, S2 and S3 (or S1 ', S2 ' and
S3 ') voltage sensing switch V1 (or V1 ') when being conducting, is just connected, avoids wrong signal feeding voltage sensor by only one
In 302.
Please continue to refer to Fig. 3 and the Fig. 4 that arranges in pairs or groups, Fig. 4 are the interior of motor to be measured depicted in Fig. 3 embodiment according to the present invention
Portion's schematic diagram.In one embodiment, as shown in figure 3, alternating current motor test device 3 further comprises having rotating device 36,
With pedestal 361 and support sector 363.Support sector 363 can pivotally be incorporated into pedestal 361.The induction coil 321 is fixed
In support sector 363, drive induction coil 321 to positioned at one of multiple magnetic pole strength MS1~MS36 with for support sector 363.
Rotating device 36 and test circuit 30 are interlocked to repeat a magnetic field strength test program, until test circuit 30 has measured
Magnetic field strength information corresponding to all magnetic pole strength MS1~MS36.Magnetic field strength test program above-mentioned includes: rotating device 36
Make the contraposition of induction coil 321 one of to multiple magnetic pole strength MS1~MS36, then is measured to obtain by test circuit 30 and correspond to
The magnetic field strength information for the magnetic pole strength that induction coil 321 is aligned, the magnetic pole strength that wherein induction coil 321 is aligned are test electricity
Road 30 not yet obtains the magnetic pole strength of corresponding magnetic field strength information.
Specifically, as shown in Figure 3 and Figure 4, support sector 363 first makes induction coil 321 to being located in one of at the beginning
Magnetic pole strength MS1, then first switching switch D1, D1 '~D3, D3 ' is connected in switching circuit 34 in order, so that coming from AC signal
The AC test signals in source 30 can be transferred into motor coil 41~43 in order.When motor coil 41~43 receives exchange
When testing signal, second switching switch S1, S1 '~S3, S3 ' is accordingly connected in switching circuit 34, so that voltage sensor 302 can
To detect to obtain voltage value on motor coil 41~43, that is, aforementioned first voltage information.In addition, working as motor coil 41~43
When receiving AC test signals, also electromagnetic induction can be generated with induction coil 321 respectively, cause induction coil 321 in order
The induced voltage that generates by electromagnetic induction is returned to voltage sensor 302.And induced voltage described herein is just above-mentioned
Second voltage information.It should be noted that the first switching of conducting in order switch D1, D1 '~D3, D3 described herein ', and it is corresponding
The second switching of ground conducting switch S1, S1 '~S3, S3 ' mean that first switching switch D1, D1 ' and accordingly the second switching is first connected
Switch S1, S1 ', then, close first switching switch D1, the D1 ' and second switch switch S1, S1 ' be connected originally, then into one
First switching switch D2, D2 ' and accordingly second switching switch S2, S2 ' is connected in step, and so on.
After voltage sensor 302 has received first voltage information and second voltage information above-mentioned, it can be aligned
Distribution of Magnetic Field information when magnetic pole strength MS1.Then, whether test circuit 30 judges induction coil 321 to positioned at the last one
Magnetic pole strength.If it is not, then support sector 363 drives induction coil 321 to positioned at next magnetic pole and being pivoted on pedestal 361
Face, such as magnetic pole strength MS2, and execute aforementioned obtained by the measurement of test circuit 30 again and aligned corresponding to induction coil 321
Magnetic pole strength magnetic field strength information program.When test circuit 30 judges induction coil 321 to positioned at the last one magnetic pole strength
When (such as magnetic pole strength MS36), then tests circuit 30 and just obtained all magnetic field strength letters for being associated with magnetic pole strength MS1~MS36
Breath, so that the distribution trend according to those magnetic field strength information judges whether the setting of the magnetic pole of motor 4 to be measured has exception, such as
The magnetic field strength information distributing plan of motor 4 to be measured can be shown according to those magnetic field strength information, and analyze magnetic field strength information
Whether waveform in distribution map judges the setting of the magnetic pole of to be measured motor 4 be slightly in the string wave mode state with the fixed cycle
It is no to have exception.For example, please with reference to Fig. 5 A and Fig. 5 B, it is painted the magnetic field strength letter of one embodiment of the invention respectively
Cease distribution map.If the magnetic pole inside motor 4 to be measured is normally arranged, then it is depicted go out magnetic field strength information distributing plan just
As shown in Figure 5A.When being applied to three-phase alternating current motor, motor coil 41 is corresponded respectively to when of the invention it can be seen from Fig. 5 A
~43 sensing value L1~L3 is distributed evenly on figure with 120 degree of phase difference, represents the magnetic pole inside motor 4 to be measured
It is arranged normal.At this point, Fig. 5 A can be considered as the distribution map of default magnetic field strength information.And it can be seen that point by Fig. 5 B
Not Dui Yingyu sensing value L1~L3 of motor coil 41~43 be not distributed evenly on figure, hence it is evident that the default magnetic field with Fig. 5 A
The distribution map of strength information is different, then can judge that the magnetic pole of the motor to be measured 4 in Fig. 5 B has exception.More specifically, with
The polarity of the magnetic field of magnetic pole strength MS18~MS20 in the distribution map of the default magnetic field strength information of Fig. 5 A compares, the magnetic pole of Fig. 5 B
The polarity of the magnetic field of face MS18~MS20 is obviously different.Its semipolar different degree is again the most significant with magnetic pole strength MS19.Therefore,
The manufacturer of motor can judge that the magnetic pole M19 in motor 4 to be measured is placed in by opposite direction and leads to magnetic anomaly, Jin Erke
Modified program is executed for magnetic pole M19.In this way, which horse can be caused because the opposite direction of magnetic pole is placed in avoid motor to be measured
The Operating ettectiveness reached reduces, to improve the quality of motor production.
Please with reference to Fig. 6 and Fig. 7.Fig. 6 is the test dress of alternating current motor depicted in another embodiment according to the present invention
It sets and the circuit framework figure of motor to be measured, and Fig. 7 is the schematic internal view of motor to be measured depicted in Fig. 6 according to the present invention.
Similar with the embodiment of Fig. 1 and Fig. 3, alternating current motor test device 5 shown in the embodiment of Fig. 6 includes test circuit 50, magnetic
Induction module 52 and switching circuit 54 and the motor to be measured 6 of institute's pretest.The embodiment of Fig. 6 and Fig. 3 is the difference is that figure
In 6 framework, alternating current motor test device 5 is not provided with rotating device, and alternating current motor test device 5 further comprises thoughts
Answer switching module 56 comprising multiple groups induction switching switch T1, T1 '~T36, T36 '.Every group of induction switching switch is electrically connected
Switch unit (including switching switch V4 and V4 ') is one corresponding with multiple induction coils.For example, induction switching switch T1,
T1 ' is electrically connected induction coil 521, induction switching switch T2, T2 ' it is electrically connected induction coil 522, and so on.Induction is cut
Change the mold block 56 and incude switching switch T1, T1 '~T36, T36 to turn in order ', so that each induction coil is respectively corresponded generation
One inductive signal is sequentially back to voltage sensor 502.More specifically, earlier figures 3 and the embodiment of Fig. 4 utilize single sense
Coil collocation rotating device is answered, multiple magnetic poles inside motor to be measured are seriatim measured.And in the embodiment of Fig. 6 and Fig. 7, by
By multiple induction coils 521~5236 respectively to multiple magnetic pole strength MS1~MS36 are located at, to complete all magnetic pole M1~M36
Magnetic field strength information collection.
Illustrate the function mode of Fig. 6 and Fig. 7 with actual example.Firstly, being directed to magnetic pole strength MS1, switching module is incuded
56 can first be connected induction switching switch T1, T1 '.Then, the switching of multiple groups first switch D4, D4 is connected in switching circuit 54 in order '
~D6, D6 ', and so that the motor coil 61~63 of motor 6 to be measured is received the AC test signals from alternating message source, and switch
Also accordingly conducting multiple groups second switch switch S4, S4 '~S6, S6 to circuit 54 ', so that voltage sensor 50 be allow to measure
The second voltage information that first voltage information and induction coil 521 on motor coil 61~63 are returned, to obtain to being located at
Magnetic field strength information when magnetic pole strength MS1.Then, test circuit 50 judges whether the group be connected induction switching switch is most
Later group induction switching switch, (such as induction switching switch T36, T36 ').If it is not, it is then directed to next magnetic pole strength, such as
Magnetic pole strength MS2 repeats measurement step above-mentioned, magnetic field strength information when obtaining to positioned at magnetic pole strength MS2, until institute
Some magnetic pole strength MS1~MS36, which have been measured, to be finished, that is, the group induction switching switch be connected is last group sense
Switch should be switched.It, can be according to this after test circuit 50 obtains all magnetic field strength information for being associated with magnetic pole M1~M36
A little magnetic field strength information show the magnetic field strength information distributing plan of motor 6 to be measured, and then according to magnetic field strength information distributing plan
To judge whether the setting of the magnetic pole of motor 6 to be measured has exception.On how to the magnetic field strength information according to motor 6 to be measured and in advance
If magnetic field strength information be loaded with relevant retouch in aforementioned come specific means of the magnetic pole for judging motor 6 to be measured whether abnormal
It states, therefore it will not be described here.
Please refer to Fig. 8 A and Fig. 8 B, the alternating current motor that Fig. 8 A and Fig. 8 B are painted respectively for an embodiment according to the present invention
The flow chart of test method and its magnetic field strength test program, it is suitable for alternating current motor test devices and motor to be measured.Below
The alternating current motor test method and its magnetic field strength test program of Fig. 8 A and Fig. 8 B is carried out by the embodiment of arrange in pairs or groups Fig. 3 and Fig. 4
Explanation.As shown in Figure 8 A and 8 B, in the alternating current motor test method, firstly, operating rotating dress in step S801
It sets 36 and tests circuit 30 to repeat magnetic field strength test program, until test circuit 30 has measured to correspond to all magnetic
Multiple magnetic field strength information of pole-face MS1~MS36.Wherein the magnetic field strength test program includes: in step S802a,
Make the contraposition of induction coil 321 one of to magnetic pole strength MS1~MS36 with rotating device 36, wherein induction coil 321 is aligned
Magnetic pole strength be that the test circuit not yet obtains the magnetic pole strength of corresponding magnetic field strength information；Then, in step S802b, by
Test circuit 30 measures the magnetic field strength information for obtaining and corresponding to the magnetic pole strength that induction coil 321 is aligned.For example, work as survey
After trying the magnetic field strength information that circuit 30 measures acquirement magnetic pole strength MS1, rotating device 36 aligns induction coil 321 to another
The magnetic pole strength not yet measured, such as magnetic pole strength MS2, to obtain the magnetic field strength information for being associated with magnetic pole strength MS2.
In an embodiment, please with reference to Fig. 8 C, 8C is the magnetic field strength test of another embodiment according to the present invention
The flow chart of program.As shown in 8C, measure to correspond to what induction coil was aligned by test amount of circuitry described in step S802b
The magnetic field strength information of magnetic pole strength includes step S8021b and step S8023b.In step S8021b, conducting at least one set of the
One switching switch is taken by an at least motor coil with induction coil accordingly with transmitting AC test signals to an at least motor coil
Multiple inductive signals.In step S8023b, conducting at least one set the second switching switch is to receive those inductive signals, those senses
Induction signal includes an at least first voltage information and an at least second voltage information, an at least first voltage information and this at least
One second voltage information is used to generate the magnetic field strength information of the magnetic pole strength.If illustrating step with the embodiment of Fig. 3 and Fig. 4
S8021b and step S8023b.In step S8021b, 34 turn in order first of switching circuit switching switch D1, D1 '~D3,
D3 ' is taken by motor coil 41~43 and induction coil 321 multiple accordingly with transmitting AC test signals to motor coil 41~43
Inductive signal.In step S8023b, 34 turn in order second of switching circuit switches switch S1, S1 '~S3, S3 ' it is somebody's turn to do with receiving
A little inductive signals.The inductive signal includes first voltage information and second voltage information, and first voltage information is electric with second
Pressure information is used to generate the magnetic field strength information of the magnetic pole strength.
Fig. 9 A and Fig. 9 B are please referred to, Fig. 9 A exchanges horse with Fig. 9 B for what another embodiment according to the present invention was painted respectively
Up to test method and its flow chart of magnetic field strength test program, it is suitable for alternating current motor test devices and motor to be measured.With
The alternating current motor test method of following figure 9A and Fig. 9 B and its magnetic field strength test program by the embodiment of arrange in pairs or groups Fig. 6 and Fig. 7 come into
Row explanation.In the alternating current motor test method, firstly, in step S901, the multiple inductions switching switch T1 of running,
T1 '~T36, T36 ' and test circuit 50 to repeat magnetic field strength test program, until test circuit 50 measured pair
It should be in multiple magnetic field strength information of all magnetic pole strength MS1~MS36.The magnetic field strength test program includes following steps:
In step S902a, switch T1, T1 '~T36, T36 are switched with induction ' one of be connected multiple induction coil 521~
A corresponding induction coil is to the current path for testing circuit among 5236, wherein the magnetic pole that corresponding induction coil is aligned
Face is the magnetic pole strength tested circuit 50 and not yet obtain corresponding magnetic field strength information；Then, in step S902b, by test electricity
Road 50 measures the magnetic field strength information for obtaining and corresponding to the magnetic pole strength that corresponding induction coil is aligned.
In an embodiment, please with reference to Fig. 9 C, 9C is the magnetic field strength test of another embodiment according to the present invention
The flow chart of program.As shown in 9C, measure to correspond to what induction coil was aligned by test amount of circuitry described in step S902b
The magnetic field strength information of magnetic pole strength includes step S9021b and step S9023b.In step S9021b, conducting at least one set of the
One switching switch is taken by an at least motor coil with induction coil accordingly with transmitting AC test signals to an at least motor coil
Obtain multiple inductive signals.In step S9021b, conducting at least one set second switching switch and at least one induction switching switch with
Those inductive signals are received, those inductive signals include an at least first voltage information and an at least second voltage information, this is extremely
Few first voltage information and an at least second voltage information are used to generate the magnetic field strength information of the magnetic pole strength.If to scheme
6 illustrate step S9021b and step S9023b with the embodiment of Fig. 7, in step S9021b, 54 turn in order of switching circuit
Multiple groups first switch switch D4, D4 '~D6, D6 ' to transmit AC test signals to motor coil 61~63, accordingly by motor wire
Circle 61~63 obtains multiple inductive signals with induction coil.In step S9023b, conducting multiple groups second switch switch S4, S4 '
~S6, S6 ' and multiple inductions switch switch T1, T1 '~T12, T12 ' to receive those inductive signals, those inductive signals include
First voltage information and second voltage information, first voltage information and second voltage information are used to generate the magnetic field strength of magnetic pole strength
Information.
It, can be by summary, in alternating current motor test device of the invention and alternating current motor test method
By single induction coil possessed by alternating current motor test device by the rotation of rotating device respectively to positioned at the multiple of motor
Magnetic pole or multiple induction coils respectively to the multiple magnetic poles for being located at motor so that the induction coil and motor coil it
Between generate electromagnetic induction.The induction coil can return inductive signal according to electromagnetic induction, and then test alternating current motor
Device obtains the Distribution of Magnetic Field information of multiple magnetic poles inside motor, thus the manufacturer of motor can be based on Distribution of Magnetic Field information
With the comparison of preset Distribution of Magnetic Field information, therefore, it is determined that the magnetic pole of motor whether the phenomenon of polarized exception, to avoid motor
Operational effectiveness is reduced because of the mistake of magnetic pole setting direction, and then achievees the purpose that promote motor quality.
Certainly, the invention may also have other embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and modifications, but these corresponding changes and change in accordance with the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (8)
1. a kind of alternating current motor test device is suitable for a motor to be measured, which is characterized in that the motor to be measured has multiple magnetic pole strengths
And an at least motor coil, the alternating current motor test device include:
One test circuit, has a test signal output port and an inductive signal input port, the test circuit is to pass through
The test signal output port provides an AC test signals；
One magnetic induction module, is electrically connected the test circuit, which includes an at least induction coil and respectively this is at least
One induction coil all has a sense magnetic side, which is used to selectively align those magnetic poles with the sense magnetic side
Face；And
One switching circuit is electrically connected the test circuit, and the switching circuit is to be connected the test circuit and the motor to be measured
Current path makes the AC test signals be transferred into an at least motor coil, accordingly by an at least induction coil and should
An at least motor coil obtains multiple inductive signals, and those inductive signals are back to the survey by the inductive signal input port
Try circuit；
Wherein those inductive signals are associated with multiple magnetic field strength information, and those magnetic field strength information are used for and a default magnetic field
Information is made comparisons, and judges whether the motor to be measured is abnormal accordingly.
2. alternating current motor test device according to claim 1, which is characterized in that the switching circuit includes at least one set of the
One switching switch and at least one set the second switching switch, at least one set first switching switch and at least one set second switching are opened
The on state for controlling the test circuit to an at least motor coil is closed, wherein the test circuit includes:
One alternating message source is electrically connected at least one set first switching switch, and the alternating message source is in at least one set
The AC test signals are provided to an at least motor coil when the first switching switch conduction；
There is one switch unit one end to be electrically connected at an at least induction coil；And
One voltage sensor, is electrically connected at least one set second switching switch and the other end of the switch unit, the voltage pass
Sensor is to receive those inductive signals when at least one set second switches switch and the switch unit is connected, those induction letters
Number include an at least first voltage information and an at least second voltage information, an at least first voltage information and this at least 1 the
Two information of voltage are for generating those magnetic field strength information.
3. alternating current motor test device according to claim 2, which is characterized in that an at least induction coil is an induction
Coil, which further comprises:
One rotating device, has a support sector and a pedestal, which can pivotally be incorporated into the pedestal, the induction coil
It is fixed on the support sector, so that the support sector drives the induction coil to being located at one of those magnetic pole strengths, the rotating device and should
Test circuit interlock to repeat a magnetic field strength test program, until the test circuit measured correspond to it is all those
Those magnetic field strength information of magnetic pole strength, which includes:
The rotating device aligns the induction coil one of to those magnetic pole strengths, then measures to correspond to by the test amount of circuitry
The magnetic field strength information for the magnetic pole strength that the induction coil is aligned, the magnetic pole strength that wherein induction coil is aligned are the survey
Examination circuit not yet obtains the magnetic pole strength of the corresponding magnetic field strength information.
4. alternating current motor test device according to claim 2, which is characterized in that at least an induction coil includes multiple for this
Induction coil, respectively corresponding one in each those magnetic pole strengths of artoregistration, which further comprises:
One induction switching module, including multiple groups induction switching switch, each group of induction switching switch are electrically connected the switching list
Member is one corresponding with those induction coils, which makes every to those induction switching switches of turn in order
The inductive signal that one induction coil respectively corresponds generation is sequentially back to the voltage sensor.
5. a kind of alternating current motor test method is suitable for an alternating current motor test device and a motor to be measured, which is characterized in that should
Motor to be measured has multiple magnetic pole strengths and an at least motor coil, which includes:
A rotating device and a test circuit are operated to repeat a magnetic field strength test program, until the test circuit has been measured
Multiple magnetic field strength information corresponding to those all magnetic pole strengths are measured, which includes:
Align an induction coil one of to those magnetic pole strengths with the rotating device, the magnetic pole strength that wherein induction coil is aligned
The magnetic pole strength of the corresponding magnetic field strength information is not yet obtained for the test circuit；And
Measure to correspond to the magnetic field strength information for the magnetic pole strength that the induction coil is aligned by the test amount of circuitry.
6. alternating current motor test method according to claim 5, which is characterized in that measure corresponding by the test amount of circuitry
Include: in the step of magnetic field strength information for the magnetic pole strength that the induction coil is aligned
Conducting at least one set the first switching switch is to transmit an AC test signals to an at least motor coil, accordingly extremely by this
A few motor coil and the induction coil obtain multiple inductive signals；And
Conducting at least one set the second switching switch and at least one induction switching switch are to receive those inductive signals, those induction letters
Number include an at least first voltage information and an at least second voltage information, an at least first voltage information and this at least 1 the
Two information of voltage are used to generate the magnetic field strength information of the magnetic pole strength.
7. a kind of alternating current motor test method is suitable for an alternating current motor test device and a motor to be measured, which is characterized in that should
Motor to be measured has multiple magnetic pole strengths and an at least motor coil, which includes multiple induction switching switches
And multiple induction coils, corresponding one in those magnetic poles of each each artoregistration of the induction coil, the alternating current motor test method
Include:
Those induction switching switches and a test circuit are operated to repeat a magnetic field strength test program, until test electricity
Road has measured to correspond to multiple magnetic field strength information of those all magnetic pole strengths, which includes:
With a corresponding induction coil among those induction coils of one of those induction switching switches conducting to the test circuit
Current path, the magnetic pole strength that wherein the corresponding induction coil is aligned be the test circuit not yet obtain the corresponding magnetic field
The magnetic pole strength of strength information；And
Measure to correspond to the magnetic field strength letter for the magnetic pole strength that the corresponding induction coil is aligned by the test amount of circuitry
Breath.
8. alternating current motor test method according to claim 7, which is characterized in that measure corresponding by the test amount of circuitry
Include: in the step of magnetic field strength information for the magnetic pole strength that the corresponding induction coil is aligned
Conducting at least one set the first switching switch is to transmit an AC test signals to an at least motor coil, accordingly extremely by this
A few motor coil and the induction coil obtain multiple inductive signals；And
Conducting at least one set the second switching switch and at least one induction switching switch are to receive those inductive signals, those induction letters
Number include an at least first voltage information and an at least second voltage information, an at least first voltage information and this at least 1 the
Two information of voltage are used to generate the magnetic field strength information of the magnetic pole strength.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3932811A (en) * | 1972-02-22 | 1976-01-13 | Avtron Manufacturing, Inc. | Method and apparatus for testing windings or the like |
| US6064172A (en) * | 1997-02-11 | 2000-05-16 | Power Superconductor Applications Corporation | Method and apparatus for detection, classification and reduction of internal electrical faults in alternating current propulsion machinery using synchronous detection scheme |
| CN2692689Y (en) * | 2004-04-21 | 2005-04-13 | 王建新 | Detector for ground fault of generator stator winding |
| JP2005214715A (en) * | 2004-01-28 | 2005-08-11 | Toyota Motor Corp | Inspection device and test method for rotary electric machine |
| CN101369003A (en) * | 2008-10-10 | 2009-02-18 | 上海奥波电子有限公司 | Electric motor stator scanning detection apparatus |
| CN102338841A (en) * | 2011-10-18 | 2012-02-01 | 卧龙电气集团股份有限公司 | Coil positive and negative embedding detection device and method |
| CN103475165A (en) * | 2013-09-05 | 2013-12-25 | 浙江大学 | Asynchronous motor winding reverse embedment detection device based on single-chip microcomputer development board |
| JP2015021852A (en) * | 2013-07-19 | 2015-02-02 | 中国電力株式会社 | Soundness inspection device |
| CN104898060A (en) * | 2015-06-18 | 2015-09-09 | 青岛艾诺智能仪器有限公司 | Device and method of rapidly detecting backward installed stator coil |
| CN205027850U (en) * | 2015-10-15 | 2016-02-10 | 青岛艾诺智能仪器有限公司 | Anti - detection device that inlays of motor stator winding |
| CN206057518U (en) * | 2016-09-19 | 2017-03-29 | 青岛艾诺智能仪器有限公司 | Coil winding of motor stator de-embedding detection means |
-
2017
- 2017-07-05 CN CN201710542395.1A patent/CN109212412B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3932811A (en) * | 1972-02-22 | 1976-01-13 | Avtron Manufacturing, Inc. | Method and apparatus for testing windings or the like |
| US6064172A (en) * | 1997-02-11 | 2000-05-16 | Power Superconductor Applications Corporation | Method and apparatus for detection, classification and reduction of internal electrical faults in alternating current propulsion machinery using synchronous detection scheme |
| JP2005214715A (en) * | 2004-01-28 | 2005-08-11 | Toyota Motor Corp | Inspection device and test method for rotary electric machine |
| CN2692689Y (en) * | 2004-04-21 | 2005-04-13 | 王建新 | Detector for ground fault of generator stator winding |
| CN101369003A (en) * | 2008-10-10 | 2009-02-18 | 上海奥波电子有限公司 | Electric motor stator scanning detection apparatus |
| CN102338841A (en) * | 2011-10-18 | 2012-02-01 | 卧龙电气集团股份有限公司 | Coil positive and negative embedding detection device and method |
| JP2015021852A (en) * | 2013-07-19 | 2015-02-02 | 中国電力株式会社 | Soundness inspection device |
| CN103475165A (en) * | 2013-09-05 | 2013-12-25 | 浙江大学 | Asynchronous motor winding reverse embedment detection device based on single-chip microcomputer development board |
| CN104898060A (en) * | 2015-06-18 | 2015-09-09 | 青岛艾诺智能仪器有限公司 | Device and method of rapidly detecting backward installed stator coil |
| CN205027850U (en) * | 2015-10-15 | 2016-02-10 | 青岛艾诺智能仪器有限公司 | Anti - detection device that inlays of motor stator winding |
| CN206057518U (en) * | 2016-09-19 | 2017-03-29 | 青岛艾诺智能仪器有限公司 | Coil winding of motor stator de-embedding detection means |
Non-Patent Citations (1)
| Title |
|---|
| 聂传之: "三相电动机绕组首末端反接时运行状态分析", 《电机技术》 * |
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