CN101639520A - Detecting method of alternating current traction motor stator connection line - Google Patents
Detecting method of alternating current traction motor stator connection line Download PDFInfo
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- CN101639520A CN101639520A CN200910044128A CN200910044128A CN101639520A CN 101639520 A CN101639520 A CN 101639520A CN 200910044128 A CN200910044128 A CN 200910044128A CN 200910044128 A CN200910044128 A CN 200910044128A CN 101639520 A CN101639520 A CN 101639520A
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Abstract
The invention discloses a detecting method of an alternating current traction motor stator connection line. A connected stator is electrified with direct current; a compass is put in the inner cavityof the stator, so that the compass can point out the N pole and the S pole of a stator magnetic field; the stator connection line situation can be reflected by the change of the pointer if the compassmoves. Concretely, the compass is put in the inner cavity of the stator core and is moved according to the sequence number; as the stator electrified with direct current generates a stationary magnetic field, the N pole of the compass is vertical to the stator core in a first magnetic field and a third magnetic field, and the S pole of the compass is vertical to the stator core in a second magnetic field and a fourth magnetic field. The compass moves clockwise beginning from the first magnetic field, the N pole of the compass slowly rotates anticlockwise along with the change of the position,and S pole points to the stator core in the fourth magnetic field; when the compass moves one circle along the inner circle, the compass is vertical to the stator core at four positions, and the fourpositions are evenly distributed on the circumference. Whether stator connection line is right is judged by observing compass change.
Description
Technical field
The present invention relates generally to a kind of method for making of motor, refers in particular to the stator on line detection method in a kind of AC traction electric motor stator making, is mainly used in alternating current traction motor stator connection line and detects.
Background technology
Dimensionally restricted of AC traction electric motor, a motor stator and an on line space are narrow and small when making design, operating difficulties, and coil quantity is more, can occur stator on line mistake when the operator neglects.And stator do not have suitable inspection method before dipping lacquer, causes motor to occur reverse rotation at the trial or changes not, causes stator to take out stitches and reconnects.In addition, because the stator employing is vacuum pressure impregnation, oven dry back stator becomes a firm integral body, the very difficulty of not only doing over again, and damage stator coil easily.Insullac is the vitrify solid after oven dry; make motor in abominable running environment, not be subjected to the influence of dirts such as dust, steam; but the stator on line is done over again and can be destroyed the globality of stator insulation; make glassy protective seam cracking; though dipping lacquer can make stator surface cover insulation course again once more; but the junction of twice dipping lacquer formation paint film is a thin spot, has certain hidden danger during the motor long-time running.Therefore the detection for stator seems very important, traditional stator on line characterization processes mainly is to detect the stator on line, the stator on line is the important procedure that stator is made, on line whether correctly can influence the sense of rotation of motor and the three-phase symmetry of stator field, the correctness of stator on line mainly guarantees by following two kinds of methods:
(1) by operator and reviewer's technical merit
The operator carried out on line to stator before this, and the reviewer checked the correctness of on line by drawing after on line was finished.Because stator coil quantity is more, on line is complicated, checks that not only efficient is low, and reviewer's technical merit and sense of responsibility has a direct impact the result who checks, has carelessness just may allow the stator of on line mistake enter down operation slightly.
(2) adopt the Rotational magnetic field method inspection
Elder generation checks whether the utmost point of stator is organized on line mutually correct, U, V, W three-phase extension line with stator connects corresponding three-phase alternating-current supply again, and put a compass at the inner chamber of stator core, slowly improve stator voltage then, promptly feed three-phase alternating current to stator, stator interior can form a rotating magnetic field, and drives the compass rotation, and the rotation direction of compass is exactly the sense of rotation of stator field.The method can accurately be judged the sense of rotation of stator field, if but have a utmost point to organize the first place mutually to connect instead, just weakened the mmf of this phase, stator still can form oval-shaped rotating magnetic field, and then drives the compass rotation.Therefore, Rotational magnetic field method can only be used to judge the sense of rotation in magnetic field, can not find the on line mistake that some utmost points are organized mutually.
In sum, the correctness of stator on line comprises that it correctly is crucial that the utmost point is organized line phase sequence correct and three-phase mutually, but traditional detection method not only efficient is low, and human factor is more, is difficult to guarantee the quality of stator making.Therefore necessary existing stator on line detection method is improved.
Summary of the invention
The objective of the invention is to deficiency at existing stator on line detection mode, a kind of new stator on line detection mode is proposed, this kind stator on line detection mode can effectively change the deficiency of traditional detection method, has the advantages that to judge stator on line correctness fast, reliably.
The objective of the invention is to be achieved through the following technical solutions, a kind of stator on line detection mode, utilize an adjustable direct supply, the stator that on line is finished feeds direct current, put into the inner chamber of stator then with compass, compass can be pointed out the N utmost point and the S utmost point position of stator field, and mobile then compass goes out the situation of stator on line by the reacting condition of pointer.
Concrete grammar is:
Import a direct current power supply for tested motor stator, the positive pole of direct supply is connect stator U phase extension line, negative pole connects stator V phase extension line, regulate galvanic size to allowing the compass rotation of putting into bore of stator get final product, electric current in the stator is flowed into mutually by U at this moment, through flowing into the V phase winding behind U phase winding and the neutral point, is flowed out mutually by V at last, this moment, W did not have electric current in mutually, and the flow direction of electric current as shown in Figure 2 in the stator.Stator coil is put into core slots according to pitch 1-13, and indicate in sequence stator coring groove is numbered, suppose that simultaneously groove is number corresponding one by one with limit, coil upper strata.After feeding direct current mutually for stator U by Fig. 2 method, first utmost point of U phase is organized 1#～5# coil current mutually for counterclockwise as can be known, then the current vertical paper on 1#～limit, 5# coil upper strata inwards, represent with " * ", the lower floor limit of 1#～5# coil is at groove number 13～17 places at this moment, direction of current is that vertical paper is outside, with " " expression; Second utmost point of U phase organized 16#～20# coil current mutually for clockwise simultaneously, then the current vertical paper on 16#～limit, 20# coil upper strata is outside, and with " " expression, the lower floor limit of 16#～20# coil is at groove number 28～32 places at this moment, direction of current be vertical paper inwards, with " * " expression; In like manner, can obtain U mutually with the V current direction in the stator winding mutually.According to Faraday's electromagnetic induction law as can be known, can form the magnetic field of one 4 utmost point this moment in the stator, be respectively first magnetic field, second magnetic field, the 3rd magnetic field and the 4th magnetic field (see figure 3).Begin with this understanding the motor stator on line is detected, detection method is as follows:
Compass is placed in the stator core inner chamber, moves the compass that is placed in the stator core inner chamber, produce the stationary magnetic field owing to feed galvanic stator according to number order, then will be perpendicular to iron core in the arctic of first magnetic field and the 3rd magnetic field compass; And will be perpendicular to iron core in the South Pole of second magnetic field and the 4th magnetic field compass.If compass moves (this moment, the arctic was pointed to unshakable in one's determination) clockwise since first magnetic field, then the arctic of compass will gently be rotated counterclockwise along with the change of position, becomes the south poles iron core when arriving the 4th magnetic field; If move a week along interior circle, then perpendicular to iron core, and 4 positions are uniform on circumference to compass 4 positions, and concrete situation of change is seen Fig. 4 (the compass blacking partly is the arctic among the figure, later on no longer explanation).When feeding the direct current detection, compass can change by Fig. 4, and then on line is correct mutually with V mutually for stator U.In like manner, with the V positive pole that joins, the W negative pole that joins can produce magnetic field in the stator, and this moment will be perpendicular to iron core in the arctic of first magnetic field and the 3rd magnetic field compass; And will be in South Pole of second magnetic field and the 4th magnetic field compass perpendicular to iron core, during along clockwise mobile compass unshakable in one's determination then pointer rotate counterclockwise, the concrete variation sees Fig. 5, can judge the correctness of W phase on line thus.
This new technology is applicable to that the on line of integer groove winding detects, and it is low to have solved stator on line checking efficiency, and a difficult problem of makeing mistakes has easily avoided motor because of doing over again that the on line mistake is carried out.In the quality control of various traction electric machines, its superiority in mass, standardized production more can find full expression with this process application, for the fabricating quality of motor provides strong guarantee.
Description of drawings
Fig. 1 is a stator on line schematic diagram;
Stator current direction when Fig. 2 U feeds direct current mutually;
The magnetic field that forms when Fig. 3 U (+), V (-);
Stator field distributes when Fig. 4 U (+), V (-);
Stator field distributes when Fig. 5 V (+), W (-);
Stator field distributes when Fig. 6 W (+), U (-).
Embodiment
Be described in further detail as follows below in conjunction with the drawings and specific embodiments to detection principle of the present invention and method.
Embodiment one
A kind of stator on line detection mode, utilize an adjustable direct supply, the stator that on line is finished feeds direct current, put into the inner chamber of stator then with compass, compass can be pointed out the N utmost point and the S utmost point position of stator field, mobile then compass goes out the situation of stator on line by the reacting condition of pointer.Concrete grammar is:
Select a kind of 4 utmost point motors, number of stator slots 60, pitch 1～13 adopts star connection, 1 tunnel parallel connection, every extremely every phase line number of turns is 5, Fig. 1 is motor stator on line schematic diagram (direction of arrow is direction of current during this utmost point is organized mutually, and n is the magnetic field rotation direction).The positive pole of direct supply is connect stator U phase extension line, negative pole connects stator V phase extension line, regulate galvanic size (can allow the compass rotation of putting into bore of stator get final product), electric current in the stator is flowed into mutually by U at this moment, through flowing into the V phase winding behind U phase winding and the neutral point, flowed out mutually by V at last, this moment, W did not have electric current in mutually, and the flow direction of electric current is seen Fig. 2 in the stator.
Stator coil is put into core slots according to pitch 1～13, and stator coring groove is numbered, suppose that simultaneously groove is number corresponding one by one with limit, coil upper strata by the sign of Fig. 1.After feeding direct current mutually for stator U by Fig. 2 method, first utmost point of U phase is organized 1#～5# coil current mutually for counterclockwise as can be known, then the current vertical paper on 1#～limit, 5# coil upper strata inwards, represent with " * ", the lower floor limit of 1#～5# coil is at groove number 13～17 places at this moment, direction of current is that vertical paper is outside, with " " expression; Second utmost point of U phase organized 16#～20# coil current mutually for clockwise simultaneously, then the current vertical paper on 16#～limit, 20# coil upper strata is outside, and with " " expression, the lower floor limit of 16#～20# coil is at groove number 28～32 places at this moment, direction of current be vertical paper inwards, with " * " expression; In like manner, can obtain U mutually with the V current direction in the stator winding mutually.According to Faraday's electromagnetic induction law as can be known, can form the magnetic field (see figure 3) of one 4 utmost point in stator this moment.
2.2 the stator on line detects
Produce the stationary magnetic field owing to feed galvanic stator, move the compass that is placed in the stator core inner chamber, then between 11 grooves and 12 grooves (position 1), the arctic of compass will be perpendicular to iron core between 41 grooves and 42 grooves (position 3); And between 26 grooves and 27 grooves (position 2), the South Pole of compass will be perpendicular to iron core between 56 grooves and 57 grooves (position 4).If compass moves (this moment, the arctic was pointed to unshakable in one's determination) clockwise from " position 1 " beginning, then the arctic of compass will gently be rotated counterclockwise along with the change of position, becomes the south poles iron core when arriving " position 4 "; If move a week along interior circle, then perpendicular to iron core, and 4 positions are uniform on circumference to compass 4 positions, and concrete situation of change is seen Fig. 4 (the compass blacking partly is the arctic among the figure, later on no longer explanation).
When feeding the direct current detection, compass can change by Fig. 4, and then on line is correct mutually with V mutually for stator U.In like manner, with the V positive pole that joins, the W negative pole that joins can produce magnetic field in the stator, and this moment, the arctic of compass will be perpendicular to iron core between 31 grooves and 32 grooves between 1 groove and 2 grooves; And between 16 grooves and 17 grooves, the South Pole of compass will be perpendicular to iron core between 46 grooves and 47 grooves, during along clockwise mobile compass unshakable in one's determination then pointer rotate counterclockwise, the concrete variation sees Fig. 5, can judge the correctness of W phase on line thus.
As long as the on line of stator three-phase is correct, then compass can be gradually when detecting, rotate uniformly, and consistent with the description of front; If compass pointer in moving process has turned to abnormal change, then be that the stator on line is wrong, detect again again after needing to handle.
2.2 the stator phase sequence detects
Determined stator poles organize mutually on line correct after, analyze the phase sequence of stator three-phase again.This motor is 4 utmost points, stator 60 grooves, and the electrical angle between then adjacent 2 grooves is 12 °, by Fig. 4 and Fig. 5 as can be seen: when U (+), V (-) fed direct current, the arctic of compass was perpendicular between 11 grooves and 12 grooves; And V (+), W (-) be when feeding direct current, and 10 grooves are just in time moved clockwise perpendicular between 1 groove and 2 grooves in the arctic of compass, and promptly the leading mutually V phase electrical angle of U is 120 °.At last W (+), U (-) are fed direct current, then the arctic of compass can find out that perpendicular to (see figure 6) between 51 grooves and 52 grooves leading mutually W phase electrical angle of V is 120 °.Can draw, the sense of rotation of stator field is a clockwise direction, and is identical with the rotation direction shown in the stator line schematic diagram (Fig. 1).
Therefore, divide in stator, to feed direct current 3 times, and with compass near stator core, the drift condition of observing compass then can not only judge accurately that the utmost point organizes the correctness with three-phase phase-sequence mutually, and easy to operate, quick, has improved work efficiency greatly.
Claims (3)
1, detecting method of alternating current traction motor stator connection line, it is characterized in that: utilize an adjustable direct supply, the stator that on line is finished feeds direct current, put into the inner chamber of stator then with compass, compass can be pointed out the N utmost point and the S utmost point position of stator field, mobile then compass goes out the situation of stator on line by the reacting condition of pointer.
2, detecting method of alternating current traction motor stator connection line as claimed in claim 1, it is characterized in that: described method is: import a direct current power supply for tested motor stator, the positive pole of direct supply is connect stator U phase extension line, negative pole connects stator V phase extension line, regulate galvanic size to allowing the compass rotation of putting into bore of stator get final product, the electric current in the stator is flowed into mutually by U at this moment, through flowing into the V phase winding behind U phase winding and the neutral point, flowed out mutually by V at last, this moment, W did not have electric current in mutually; Stator coil is put into core slots according to pitch 1-13, and indicate in sequence stator coring groove is numbered, suppose that simultaneously groove is number corresponding one by one with limit, coil upper strata; After stator U feeds direct current mutually, can form the magnetic field of one 4 utmost point in the stator, be respectively first magnetic field, second magnetic field, the 3rd magnetic field and the 4th magnetic field; Compass is placed in the stator core inner chamber, moves the compass that is placed in the stator core inner chamber, produce the stationary magnetic field owing to feed galvanic stator according to number order, then will be perpendicular to iron core in the arctic of first magnetic field and the 3rd magnetic field compass; And will be perpendicular to iron core in the South Pole of second magnetic field and the 4th magnetic field compass; If compass moves clockwise since first magnetic field, then the arctic of compass will gently be rotated counterclockwise along with the change of position, becomes the south poles iron core when arriving the 4th magnetic field; If move a week along interior circle, then perpendicular to iron core, and 4 positions are uniform on circumference to compass 4 positions; Whether when feeding the direct current detection, it is correct to differentiate the stator on line by the variation of compass meeting.
3, detecting method of alternating current traction motor stator connection line as claimed in claim 1, it is characterized in that: described when feeding the direct current detection, being changed to of compass meeting: when feeding the direct current detection, compass can change by Fig. 4, and then on line is correct mutually with V mutually for stator U; In like manner, with the V positive pole that joins, the W negative pole that joins can produce magnetic field in the stator, and this moment will be perpendicular to iron core in the arctic of first magnetic field and the 3rd magnetic field compass; And will be in South Pole of second magnetic field and the 4th magnetic field compass perpendicular to iron core, during along clockwise mobile compass unshakable in one's determination then pointer rotate counterclockwise, can judge the correctness of W phase on line thus.
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| CN200910044128A CN101639520A (en) | 2009-08-17 | 2009-08-17 | Detecting method of alternating current traction motor stator connection line |
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| CN200910044128A CN101639520A (en) | 2009-08-17 | 2009-08-17 | Detecting method of alternating current traction motor stator connection line |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103744033A (en) * | 2014-01-10 | 2014-04-23 | 柳州杰诺瑞汽车电器系统制造有限公司 | Detection device for stator magnetic field of starter |
| CN103777109A (en) * | 2014-01-20 | 2014-05-07 | 广东美芝精密制造有限公司 | Stator outgoing line wiring detecting device and method for three-phase permanent-magnet motor |
| CN104734427A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Testing method for three-phase electric machine rotation direction and three-phase electric machine stator module |
| CN107271931A (en) * | 2017-06-16 | 2017-10-20 | 上海二十冶建设有限公司 | The inspection method of asynchronous motor stator winding polarity |
| CN109188273A (en) * | 2018-08-22 | 2019-01-11 | 珠海格力电器股份有限公司 | Stator winding Wiring detection method and detection device |
| CN109901010A (en) * | 2019-04-09 | 2019-06-18 | 河北瑞兆激光再制造技术股份有限公司 | Three-phase windings wiring condition detection tool and detection method |
| CN110187271A (en) * | 2019-05-13 | 2019-08-30 | 浙江求是科教设备有限公司 | A kind of self-action electromechanical testing platform |
| CN111896901A (en) * | 2020-07-09 | 2020-11-06 | 宁波名众自动化科技有限公司 | Device and method for detecting magnetic field symmetry of multi-pole product |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01308144A (en) * | 1988-06-03 | 1989-12-12 | Mitsubishi Electric Corp | Arrangement checking method for polyphase armature winding in electric rotary machine |
-
2009
- 2009-08-17 CN CN200910044128A patent/CN101639520A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01308144A (en) * | 1988-06-03 | 1989-12-12 | Mitsubishi Electric Corp | Arrangement checking method for polyphase armature winding in electric rotary machine |
Non-Patent Citations (2)
| Title |
|---|
| 丁昌国: "三相异步电动机定子故障的几种简易检测及处理方法", 《青岛远洋船员职业学院学报》 * |
| 松柏: "《三相电动机修理自学指导》", 31 May 2001, 北京科学技术出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734427A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Testing method for three-phase electric machine rotation direction and three-phase electric machine stator module |
| CN103744033A (en) * | 2014-01-10 | 2014-04-23 | 柳州杰诺瑞汽车电器系统制造有限公司 | Detection device for stator magnetic field of starter |
| CN103777109A (en) * | 2014-01-20 | 2014-05-07 | 广东美芝精密制造有限公司 | Stator outgoing line wiring detecting device and method for three-phase permanent-magnet motor |
| CN107271931A (en) * | 2017-06-16 | 2017-10-20 | 上海二十冶建设有限公司 | The inspection method of asynchronous motor stator winding polarity |
| CN109188273A (en) * | 2018-08-22 | 2019-01-11 | 珠海格力电器股份有限公司 | Stator winding Wiring detection method and detection device |
| CN109901010A (en) * | 2019-04-09 | 2019-06-18 | 河北瑞兆激光再制造技术股份有限公司 | Three-phase windings wiring condition detection tool and detection method |
| CN110187271A (en) * | 2019-05-13 | 2019-08-30 | 浙江求是科教设备有限公司 | A kind of self-action electromechanical testing platform |
| CN110187271B (en) * | 2019-05-13 | 2021-04-16 | 浙江求是科教设备有限公司 | Automatic formula motor test platform |
| CN111896901A (en) * | 2020-07-09 | 2020-11-06 | 宁波名众自动化科技有限公司 | Device and method for detecting magnetic field symmetry of multi-pole product |
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Application publication date: 20100203 |