CN109901010A - Three-phase windings wiring condition detection tool and detection method - Google Patents
Three-phase windings wiring condition detection tool and detection method Download PDFInfo
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- CN109901010A CN109901010A CN201910281946.2A CN201910281946A CN109901010A CN 109901010 A CN109901010 A CN 109901010A CN 201910281946 A CN201910281946 A CN 201910281946A CN 109901010 A CN109901010 A CN 109901010A
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- turntable
- fixing axle
- phase windings
- winding
- rotor
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- 238000004804 winding Methods 0.000 title claims abstract description 62
- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000005284 excitation Effects 0.000 claims description 15
- 239000004020 conductor Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 2
- 206010014357 Electric shock Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000000819 phase cycle Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
Abstract
A kind of three-phase windings wiring condition detection tool, including turntable, fixing axle and the body of rod；Fixing axle is installed on the center of turntable position, and the free end of the fixing axle is plugged in the end of the body of rod；To be rotatably assorted between turntable and the fixing axle, turntable is freely rotated in fixing axle.Hand-held body of rod lower end, makes winding of the turntable slowly close to stator inner surface (rotor outer surface), and at the uniform velocity move one week along its circumference；In moving process, determine whether winding connection is correct by the presence or absence of turntable rotation, direction, power.Present invention production is simple, it is at low cost, can scene draw materials, easy to operate, service efficiency height；High safety；Facilitate judgement, high-efficient, accuracy is high, simple direct.
Description
Technical field
The present invention relates to electrical engineering control fields, specifically a kind of to be used for real-time judge three-phase windings wiring situation
Detection instrument and detection method.
Background technique
Currently, being all generally to be placed in magnetic using large-scale rotary shaft or gig when detecting three-phase windings wiring situation
In, then Xiang Dingzi or rotor are passed through 30-80V voltage, rotate rotary shaft or gig in magnetic field, pass through having for rotation
Nothing, direction, power determine whether winding connection is correct.But it is of different sizes based on stator and rotor, it needs to select various sizes of
Rotary shaft or gig have higher requirement for the intensity in magnetic field, and there is no commonly used for this detection method.
In order to solve, test needs a large amount of different sized rotors (rotary shaft or gig etc.) and magnetic field strength is higher asks
Also there is the detection for the gig progress magnetic direction that much can be adapted for the stator and rotor of different sizes in topic.Compare
Common is exactly to be detected using bearing, but hand-held bearing is needed to enter in magnetic field, and in moving process, hand may be direct
Coil is contacted, and electric shock accidents can then occur for coil defective insulation, there is very big security risk.
Technology disclosed in Chinese patent " a kind of method (zl 201310731630.1) for detecting three-phase alternating current winding connection "
In scheme, it is noted that " alternating current whole detection method ", technical solution are " needle disk to be lain in a horizontal plane in three-phase windings side
The position on intermediate or intermediate side is fixed, if needle continues at the uniform velocity to rotate, judges that the whole wiring of three-phase windings is correct ",
The result is that " using inverter supply, reducing supply frequency, reduce the movement speed of shifting magnetic field, if needle has rotated, then say
The whole wiring of bright three-phase windings is correct；Otherwise needle does not rotate, then wiring error, needs to correct wiring ".Disclosed in the patent
Although technical solution be suitable for various scales rotor, its detection instrument be needle disk, it is desired nonetheless to will closely lean on
Nearly winding, there are security risks, in addition, due in the detection process, needle disk be it is fixed, detection range is smaller,
And need to calculate to improve its detection accuracy, practicability is poor.
Summary of the invention
The present invention be directed to technical defects mentioned in the background art, one be to provide it is a kind of be suitable for various scale stators or
The tool of rotor three-phase winding connection situation real-time detection, two apply this detection instrument to carry out winding connection there is provided a kind of
The method of condition detection.
The technical scheme adopted by the invention is that: a kind of three-phase windings wiring condition detection tool, including turntable, fixing axle
And the body of rod；
The fixing axle is installed on the center of turntable position, and the free end of the fixing axle is plugged in the end of the body of rod；
To be rotatably assorted between the turntable and the fixing axle, turntable is freely rotated in fixing axle.
Turntable is the closed conductor of thin circle of equal radiuses, a diameter of 20-40mm, with a thickness of 0.5-1mm.
One end of the fixing axle is equipped with the axle cap being integrated with.
The body of rod is insulator.
Fixing axle free end is connected with the end of the body of rod by one of screw thread, bonding or interference grafting form
Together.
A kind of method of the detection three-phase windings wiring situation of tool described in application:
(1), three wound stators (or rotor) to be detected is horizontal positioned；
(2), it gives in the winding of stator (or rotor) and is passed through 10-15V voltage；
(3), body of rod lower end is held, makes winding of the turntable slowly close to stator inner surface (rotor outer surface), and along its circumference
It is at the uniform velocity one week mobile；In moving process, determine whether winding connection is correct by the presence or absence of turntable rotation, direction, power.
The three phase mains being passed through generates the rotating excitation field by winding, after turntable enters rotating excitation field, the edge in fixing axle
Magnetic direction does mechanical rotation；In turntable along stator (or rotor) circumference moving process, detects produced per one winding one by one
Whether raw rotating excitation field direction meets the requirements, to reach the whether correct purpose of detection winding wiring.
When turntable is close to stator (or rotor), the section of turntable and stator (or rotor) is arranged in parallel.
Compared with prior art, technical solution disclosed in this invention has the advantages that
1, production is simple, it is at low cost, can scene draw materials, easy to operate, service efficiency height；
2, the body of rod is insulating bar, and operator and stator or rotor windings are separated certain safe distance, effectively avoid directly connecing
The hidden danger of electric shock accidents, high safety can then occur for lashing ring and coil defective insulation；
3, turntable is at the uniform velocity moved along the winding circumference of stator or rotor, can intuitively be sentenced according to the rotational case of its whole process
The wiring situation of disconnected winding out, facilitates judgement, and high-efficient, accuracy is high, simple direct.
Detailed description of the invention
Fig. 1 is detection instrument use state diagram of the invention.
Fig. 2 is the main view of detection instrument of the invention.
Fig. 3 is the side view of detection instrument of the invention.
In figure: detection instrument 1, stator winding 2, motor stator 3；
Wherein: turntable 1-1, fixing axle 1-2, body of rod 1-3.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Principle shows: when three-phase windings access three-phase alternating-current supply, three-phase windings flow through the generation of three-phase symmetrical electric current
Three-phase magnetomotive force (stator rotating mmf) simultaneously generates rotating excitation field.The direction of rotation of rotating excitation field and the phase sequence one of three-phase current
It causes, arbitrarily exchanges two electric power incoming lines, then rotating excitation field inverts.Three phase rotating field circumgyration incision rotor windings, rotor windings
Induced electromotive force is generated, direction is determined by " right-hand screw rule ".Due to rotor windings closed in itself, just there is electric current to flow through,
And assuming that current direction is identical as electromotive force direction, rotor windings induced current generates electromagnetism under three phase rotating field effect
Power, direction are judged by " left hand helix law ".The power forms torque (claiming electromagnetic torque) shaft, driving rotor rotation, and
As it can be seen that its direction and stator rotating excitation field (i.e. electric current phase sequence) are unanimously, then, motor is suitable under the driving of electromagnetic torque
The direction of rotating excitation field rotate, determine whether winding connection correct by the presence or absence of rotation, direction, power.
This three-phase windings wiring condition detection tool disclosed in this invention is mainly used to detect motor stator or rotor
Whether winding connection is correct.This detection instrument is used for the test in three-phase motor winding magnetic field direction as gig, utilizes
The three phase mains being passed through generates the rotating excitation field by winding, so that gig is done mechanical rotation, to reach detection magnetic direction
Purpose, magnetic direction exists and consistent, and gig rotation direction is consistent and intensity is identical.
Detection instrument is close to stator or the winding coil of rotor, and referring to attached drawing 1, the present embodiment is to detect motor stator 3
The wiring situation of stator winding 2 is illustrated, and detection instrument 1 is placed in stator inner periphery, the position close to stator winding 2.
Detection instrument 1 includes turntable 1-1, fixing axle 1-2, body of rod 1-3.Fixing axle 1-2 is installed on the centre bit of turntable 1-1
On the centre bore set, fixing axle is concentric with centre bore.The free end of fixing axle is plugged in the end of body of rod 1-3.Turntable and institute
It states to be rotatably assorted between fixing axle, turntable is freely rotated in fixing axle.
Turntable 1-1 is the closed conductor of thin circle of equal radiuses, a diameter of 20-40mm, with a thickness of 0.5-1mm.Fixing axle
One end be equipped with the axle cap that is integrated with, axle cap is used to limit the position of turntable, prevents it from falling off in rotary course.The body of rod
For insulator, it effectively prevent Danger Electric shock risk.It is inserted between fixing axle free end and the end of the body of rod by screw thread, bonding or interference
Form one of is connect to link together.The distance between the axle cap of fixing axle and body of rod end face are greater than turntable thickness, turntable
The internal diameter of centre bore is slightly larger than the outer diameter of fixing axle, to realize that turntable is freely rotated in fixing axle.
Method using this tool detection three-phase windings wiring situation is as follows:
(1), three wound stators to be detected are horizontally arranged, as shown in Fig. 1；
(2), to being passed through 10-15V voltage in the winding of stator；
(3), body of rod lower end is held, makes turntable slowly close to the winding of stator inner surface, and at the uniform velocity move along stator inner periphery
One week；In moving process, determine whether winding connection is correct by the presence or absence of turntable rotation, direction, power.Turntable is close
When stator, the section of turntable and stator is arranged in parallel.
The three phase mains being passed through generates the rotating excitation field by winding, after turntable enters rotating excitation field, the edge in fixing axle
Magnetic direction does mechanical rotation；In turntable along stator inner periphery moving process, one radial every winding of stator is detected one by one
Whether generated rotating excitation field direction meets the requirements, to reach the whether correct purpose of detection winding wiring.
Claims (8)
1. a kind of three-phase windings wiring condition detection tool, which is characterized in that including turntable, fixing axle and the body of rod；
The fixing axle is installed on the center of turntable position, and the free end of the fixing axle is plugged in the end of the body of rod；
To be rotatably assorted between the turntable and the fixing axle, turntable is freely rotated in fixing axle.
2. three-phase windings wiring condition detection tool according to claim 1, which is characterized in that the turntable is to wait radiuses
The closed conductor of thin circle, a diameter of 20-40mm, with a thickness of 0.5-1mm.
3. three-phase windings wiring condition detection tool according to claim 1, which is characterized in that one end of the fixing axle
Equipped with the axle cap being integrated with.
4. three-phase windings wiring condition detection tool according to claim 1, which is characterized in that the body of rod is insulation
Body.
5. three-phase windings wiring condition detection tool according to claim 1, which is characterized in that the fixing axle free end
It is linked together with the end of the body of rod by one of screw thread, bonding or interference grafting form.
6. a kind of method using tool of any of claims 1-5 detection three-phase windings wiring situation, feature
It is:
(1), three wound stators (or rotor) to be detected is horizontal positioned；
(2), it gives in the winding of stator (or rotor) and is passed through 10-15V voltage；
(3), body of rod lower end is held, makes winding of the turntable slowly close to stator inner surface (rotor outer surface), and along its circumference
It is at the uniform velocity one week mobile；In moving process, determine whether winding connection is correct by the presence or absence of turntable rotation, direction, power.
7. the method for detection three-phase windings wiring situation according to claim 6, it is characterised in that: the three phase mains being passed through
The rotating excitation field by winding is generated, after turntable enters rotating excitation field, does mechanical rotation along magnetic direction in fixing axle；Turning
Disk detects whether rotating excitation field direction caused by one every winding meets along stator (or rotor) circumference moving process one by one
It is required that reach the whether correct purpose of detection winding wiring.
8. the method for detection three-phase windings wiring situation according to claim 6, it is characterised in that: turntable is close to stator
When (or rotor), the section of turntable and stator (or rotor) is arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910281946.2A CN109901010A (en) | 2019-04-09 | 2019-04-09 | Three-phase windings wiring condition detection tool and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910281946.2A CN109901010A (en) | 2019-04-09 | 2019-04-09 | Three-phase windings wiring condition detection tool and detection method |
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| Publication Number | Publication Date |
|---|---|
| CN109901010A true CN109901010A (en) | 2019-06-18 |
Family
ID=66954636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910281946.2A Pending CN109901010A (en) | 2019-04-09 | 2019-04-09 | Three-phase windings wiring condition detection tool and detection method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639520A (en) * | 2009-08-17 | 2010-02-03 | 南车株洲电力机车有限公司 | Detecting method of alternating current traction motor stator connection line |
| CN103063981A (en) * | 2012-11-13 | 2013-04-24 | 肖功宽 | Motor repairing boarding line testing device and method |
| CN104049153A (en) * | 2014-06-23 | 2014-09-17 | 昆山富通电子有限公司 | Three-phase motor body phase sequence testing device |
| CN203929963U (en) * | 2014-06-24 | 2014-11-05 | 成孝弟 | A kind of motor coil testing tool |
| CN105911422A (en) * | 2016-04-27 | 2016-08-31 | 精基科技（嘉兴）有限公司 | Three-phase AC motor stator winding coil mismatched wiring detection apparatus and the detection method |
| CN205720454U (en) * | 2016-04-13 | 2016-11-23 | 中国第一汽车股份有限公司 | A kind of fexible unit measuring motor stator winding phase sequence |
| CN210155306U (en) * | 2019-04-09 | 2020-03-17 | 河北瑞兆激光再制造技术股份有限公司 | Three-phase winding wiring condition detection tool |
-
2019
- 2019-04-09 CN CN201910281946.2A patent/CN109901010A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639520A (en) * | 2009-08-17 | 2010-02-03 | 南车株洲电力机车有限公司 | Detecting method of alternating current traction motor stator connection line |
| CN103063981A (en) * | 2012-11-13 | 2013-04-24 | 肖功宽 | Motor repairing boarding line testing device and method |
| CN104049153A (en) * | 2014-06-23 | 2014-09-17 | 昆山富通电子有限公司 | Three-phase motor body phase sequence testing device |
| CN203929963U (en) * | 2014-06-24 | 2014-11-05 | 成孝弟 | A kind of motor coil testing tool |
| CN205720454U (en) * | 2016-04-13 | 2016-11-23 | 中国第一汽车股份有限公司 | A kind of fexible unit measuring motor stator winding phase sequence |
| CN105911422A (en) * | 2016-04-27 | 2016-08-31 | 精基科技（嘉兴）有限公司 | Three-phase AC motor stator winding coil mismatched wiring detection apparatus and the detection method |
| CN210155306U (en) * | 2019-04-09 | 2020-03-17 | 河北瑞兆激光再制造技术股份有限公司 | Three-phase winding wiring condition detection tool |
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