CN214337739U - Device for monitoring motor fault - Google Patents
Device for monitoring motor fault Download PDFInfo
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- CN214337739U CN214337739U CN202023025723.7U CN202023025723U CN214337739U CN 214337739 U CN214337739 U CN 214337739U CN 202023025723 U CN202023025723 U CN 202023025723U CN 214337739 U CN214337739 U CN 214337739U
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- oscilloscope
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Abstract
The utility model discloses a device for monitoring motor faults, which is used for monitoring motor faults through the potential in a stator slot where a stator in a motor is positioned, and comprises an induced potential component and a potential metering component, wherein the induced potential component is used for inducing the potential at the stator slots at two ends of the same circular plane diameter where the stator is positioned, and the potential metering component is used for monitoring the potential at the stator slots at two ends of the same circular plane diameter where the stator is positioned; compared with the prior art, the utility model discloses a copper enameled wire and the oscilloscope that set up, the motor is normal during operation, and the electric potential that two copper enameled wires responded to out also is even, and it shows on the oscilloscope is smooth wave form, in case the motor breaks down, and burr or beat appear in the wave form on the oscilloscope, in the motor test of dispatching from the factory, whether there is the defect through this kind of simple and convenient mode preliminary examination motor, perhaps the motor is at the monitoring action that plays of long-term operation in-process.
Description
Technical Field
The utility model relates to a motor fault monitoring technology field specifically is a monitoring motor trouble's device.
Background
In the motor factory test, whether need accord with the standard of dispatching from the factory through numerous and diverse process detection motor to can not directly judge whether there is the trouble in the motor, at present, the motor is in the course of the work, has not to go to monitor motor running state, can not eliminate the potential problem in the motor operation process in advance, for this reason, the utility model provides a can solve the device of a monitoring motor trouble of above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device of monitoring motor trouble to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an apparatus for monitoring a fault in an electric motor by means of an electric potential in stator slots in which a stator in the electric motor is located, comprising:
the induction potential assembly is used for inducing potentials at the stator slots at two ends of the diameter of the same circular plane where the stator is located;
and the potential metering component is used for monitoring the potential at the stator slots at two ends of the diameter of the same circular plane where the stator is positioned.
As an optimal technical scheme of the utility model, the induced potential subassembly includes stator winding, stator winding is located the stator, stator winding is formed by two equilong copper enameled wire coiling of symmetrical placement in the stator.
As an optimal technical scheme of the utility model, the electric potential measurement subassembly includes oscilloscope, two the one end of copper enameled wire is worn out from the stator and is equipped with the lead-out wire with the stator terminal surface parallel, oscilloscope is connected with the lead-out wire.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a monitoring motor trouble's device, copper enameled wire and oscilloscope through setting up, in the stator, the stator slot at diameter both ends is under same magnetic pole on the same circular plane, the normal during operation of motor, two stator slot department magnetic field intensity are equal, the inside even magnetic field that is of motor of normal work, consequently, the electric potential that two copper enameled wires responded to comes out is also even, it shows the smooth wave form that is on oscilloscope, in case the motor breaks down, the magnetic field is disorderly, burr or beating appear in the wave form on the oscilloscope, in the motor factory test, whether there is the defect through this kind of simple and convenient mode preliminary examination motor, perhaps the motor is at the monitoring effect that plays of long-term operation in-process, moreover, the steam generator is simple in structure, low in manufacturing cost, do not need accurately, advanced, expensive instrument and equipment.
Drawings
FIG. 1 is a schematic view of the connection of the partial structure of the present invention;
FIG. 2 is a schematic view of the structural connection between the motor and the oscilloscope of the present invention;
in the figure: 1. a stator; 2. a stator winding; 3. an outgoing line; 4. copper enameled wires; 5. a motor; 6. an oscilloscope.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1-2, the present invention provides a technical solution: a device for monitoring motor faults is used for monitoring motor 5 faults through electric potential in stator slots where stators 1 in the motors 5 are located and comprises an induced electric potential component and an electric potential metering component, wherein the induced electric potential component is used for inducing electric potential of the stators 1 at the positions of the stator slots at two ends of the same circular plane diameter; the potentiometric assembly is used for monitoring the potential of the stator 1 at the stator slots at the two ends of the same circular plane diameter, and the motor 5 is a three-phase asynchronous motor in the embodiment.
The induced potential subassembly includes stator winding 2, stator winding 2 is located stator 1, stator winding 2 is formed by two isometric copper enameled wires 4 coiling of symmetrical placement in stator 1, two copper enameled wires 4 pass half of stator slot respectively, three-phase asynchronous motor is at the moving in-process, 5 inside can produce the even rotatory magnetic field of motor, when 5 breaks down in the motor, the magnetic field changes thereupon, in stator 1, the stator slot at diameter both ends is in under the same magnetic pole on the same circular plane, in normal work, two stator slot department magnetic field intensity are equal.
The potential metering component comprises an oscilloscope 6, one end of each of two copper enameled wires 4 penetrates out of the stator 1 and is provided with an outgoing line 3 in parallel with the end face of the stator 1, the oscilloscope 6 is connected with the outgoing line 3 penetrating out of the junction box, the accuracy of the oscilloscope 6 is higher than that of a voltmeter, and a uniform magnetic field is arranged inside the normally working motor 5, so that the potentials induced by the two copper enameled wires 4 are uniform, smooth waveforms are displayed on the oscilloscope 6, and once the motor 5 fails and the magnetic field is disordered, the waveforms on the oscilloscope 6 are burred or jumped, in a delivery test of the motor 5, the structure is simple, the manufacturing cost is low, precise, advanced and expensive instruments and equipment are not needed, the delivery test of the motor can be assisted, the effect of pre-detecting the failure problem of the motor 5 is achieved, and the running state of the motor 5 can be monitored in the working process of the motor 5, the functions of protecting the motor 5, protecting property and protecting the personal safety of workers are achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. An arrangement for monitoring a fault in an electric machine (5) by means of an electric potential in a stator slot in which a stator (1) in the electric machine (5) is located, characterized by comprising:
the induced potential assembly is used for inducing the potential at the stator slots at two ends of the same circular plane diameter where the stator (1) is located;
and the potential metering component is used for monitoring the potential at the stator slots at two ends of the diameter of the same circular plane where the stator (1) is positioned.
2. The device for monitoring the motor fault according to claim 1, characterized in that the induced potential assembly comprises a stator winding (2), the stator winding (2) is located in the stator (1), and the stator winding (2) is formed by winding two copper enameled wires (4) which are symmetrically placed in the stator (1) and have equal length.
3. The device for monitoring the motor fault according to claim 2, wherein the potential metering component comprises an oscilloscope (6), one end of each of the two copper enameled wires (4) penetrates out of the stator (1) and is provided with an outgoing line (3) in parallel with the end face of the stator (1), and the oscilloscope (6) is connected with the outgoing line (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023025723.7U CN214337739U (en) | 2020-12-15 | 2020-12-15 | Device for monitoring motor fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023025723.7U CN214337739U (en) | 2020-12-15 | 2020-12-15 | Device for monitoring motor fault |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214337739U true CN214337739U (en) | 2021-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023025723.7U Active CN214337739U (en) | 2020-12-15 | 2020-12-15 | Device for monitoring motor fault |
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| CN (1) | CN214337739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116718915A (en) * | 2023-08-10 | 2023-09-08 | 西门子电机(中国)有限公司 | Motor notch electric field intensity detection method and device, electronic equipment and storage medium |
-
2020
- 2020-12-15 CN CN202023025723.7U patent/CN214337739U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116718915A (en) * | 2023-08-10 | 2023-09-08 | 西门子电机(中国)有限公司 | Motor notch electric field intensity detection method and device, electronic equipment and storage medium |
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