CN215219121U - Enameled wire insulating dry-type detection device - Google Patents
Enameled wire insulating dry-type detection device Download PDFInfo
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- CN215219121U CN215219121U CN202120937193.9U CN202120937193U CN215219121U CN 215219121 U CN215219121 U CN 215219121U CN 202120937193 U CN202120937193 U CN 202120937193U CN 215219121 U CN215219121 U CN 215219121U
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Abstract
The utility model discloses an enameled wire insulating dry-type detection device, including switching power supply, detection plug and circuit detection circuit, switching power supply's an utmost point is connected with the detection plug, and another utmost point is connected with the enameled wire that waits to detect, is equipped with spiral wire winding groove on the detection plug, and the cross-section in wire winding groove is semi-circular, and the enameled wire winding that waits to detect is at the wire winding inslot, and current detection circuit establishes ties on the detection plug and switching power supply between the connecting circuit. The utility model discloses it need not to use conducting solution to examine time measuring to the enameled wire insulating nature for it is more convenient to detect.
Description
Technical Field
The utility model relates to an enameled wire detects technical field, in particular to enameled wire insulating nature dry-type detection device.
Background
The enameled wire is a main variety of winding wires and consists of a conductor and an insulating layer, wherein the insulating layer is usually insulating paint, and whether the insulating layer of the enameled wire is insulated or not is an important basis for judging whether the enameled wire is qualified or not. At present, generally, for insulation detection of an enameled wire, a section of the enameled wire is placed in a salt solution and electrified by a conductive method, if an exposed dew point exists on the enameled wire, an electrolytic reaction occurs at the exposed point, the exposed dew point can be found by visual inspection or indicator indication, and the method can accurately detect the exposed dew point of the enameled wire. But adopt this kind of mode to detect and need dispose conducting solution, electrically conduct and need great holding space easily, detect inconveniently, conducting solution spills the spill easily when detecting moreover, causes the corruption to relevant equipment.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides an enameled wire insulating dry-type detection device, its advantage need not to dispose conducting solution, detects the convenience.
The above object of the utility model is realized through following technical scheme, an insulating dry-type detection device of enameled wire, including switching power supply, detection plug and circuit detection circuit, switching power supply's an utmost point is connected with the detection plug, and another utmost point is connected with the enameled wire that waits to detect, is equipped with spiral winding groove on the detection plug, and the cross-section in winding groove is semi-circular, and the enameled wire winding that waits to detect is at the winding inslot, and current detection circuit establishes ties on the detection plug and the switching power supply between the connecting circuit.
Through above-mentioned technical scheme, switching power supply provides DC power supply, and the enameled wire winding that awaits measuring is at the wire winding inslot, and consequently, the enameled wire has good contact relation with detecting the plug, and if there is the defect in the insulating nature of enameled wire, the enameled wire with detect the plug and will the electric conduction, consequently, can judge whether insulating nature of enameled wire is good according to whether producing the circuit in the circuit, need not to use conducting solution in the testing process for it is more convenient to detect.
The utility model discloses further set up to, the wire winding groove is equipped with two sets ofly, and two sets of wire winding grooves are double helix structure.
Through the technical scheme, the two ends of the enameled wire can be led out from one end of the detection core rod through the winding grooves with the double-spiral structure, and the enameled wire is convenient to connect.
The utility model discloses further set up to, wait to detect the outer surface coating of enameled wire and have the carbon dust.
Through the technical scheme, the carbon powder is conductive, and the enameled wire is wound on the detection mandrel after the carbon powder is coated on the outer surface of the enameled wire, so that the direct connection effect of the enameled wire and the detection mandrel is improved, and the detection accuracy is improved.
The utility model discloses further set up to, still include a detection box, the oral area that detects the box is equipped with the internal thread, and the detection box adopts insulating material, is equipped with the carbon dust in the detection box, and the winding is detected the detection plug that detects the enameled wire and is placed in detecting the box, is equipped with the external screw thread that is used for and detects box mouth portion female connection on the detection plug.
Through the technical scheme, when the detection is carried out, the detection core rod extends into the detection box, and the carbon powder in the detection box can improve the detection precision.
The utility model discloses further set up to, the current detection circuit includes that a detection resistor and difference fortune are put, and the detection resistor is established ties in the detection plug and the switching power supply between the connecting circuit, and the normal phase input and the reverse phase input that difference fortune was put are connected respectively in the detection resistor both sides.
The utility model discloses further set up to, still include oscilloscope, oscilloscope and current detection circuit connection.
The utility model discloses further set up to, still including microprocessor and alarm device, current detection circuit's output signal is inputed for microprocessor after analog-to-digital conversion, and alarm device is connected with microprocessor and is controlled by microprocessor, when current detection circuit output signal reaches the default, reports to the police through microprocessor control alarm device.
The utility model discloses further set up as, alarm device includes one or more in flashing light and the buzzer.
To sum up, the beneficial effects of the utility model are that:
1. the enameled wire is wound on the detection core rod, and the enameled wire and the detection core rod are electrified, so that when the insulation property of the enameled wire is defective, the enameled wire and the detection core rod are electrically conducted, and current exists in a circuit at the moment, and whether the insulation layer of the enameled wire is defective or not can be detected;
2. the detection accuracy is improved by coating carbon powder on the enameled wire;
3. the current detection circuit is arranged to convert a current signal passing through the detection core rod into a voltage signal to be output, the voltage signal is displayed through the oscilloscope, visual observation is facilitated, in addition, the alarm device is arranged to give an alarm when the insulating property of the enameled wire is defective, and the unqualified enameled wire detected by a detector is improved.
Drawings
Fig. 1 is a schematic diagram of a detection principle in a first embodiment of the present invention;
FIG. 2 is a schematic view illustrating an enameled wire wound on a detection core rod according to a first embodiment of the present invention;
fig. 3 is a schematic diagram of a current detection circuit according to a first embodiment of the present invention;
fig. 4 is a schematic diagram of a first embodiment of the present invention;
fig. 5 is a schematic view illustrating connection between the detection core rod and the detection box according to the second embodiment of the present invention.
In the figure, 1, a mandrel is detected; 2. a current detection circuit; 3. a winding slot; 4. a detection box.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
The first embodiment is as follows: referring to fig. 1-4, an enameled wire insulation dry-type detection device includes a switching power supply, a detection core rod 1 and a circuit detection circuit, one pole of the switching power supply is connected to the detection core rod 1, the other pole is connected to an enameled wire to be detected, a spiral winding slot 3 is arranged on the detection core rod 1, the cross section of the winding slot 3 is semicircular, the enameled wire to be detected is wound in the winding slot 3, and a current detection circuit 2 is connected in series to a connection circuit between the detection core rod 1 and the switching power supply.
Switching power supply provides DC power supply, and the enameled wire winding that waits to detect is in winding wire groove 3, and consequently, the enameled wire has good contact relation with detecting plug 1, and if there is the defect in the insulating nature of enameled wire, the enameled wire with detect plug 1 and will the electric conduction, consequently, can judge whether insulating nature of enameled wire is good according to whether producing the circuit in the circuit, need not to use conducting solution in the testing process for it is more convenient to detect.
The winding grooves 3 are two groups, the two groups of winding grooves 3 are of double-spiral structures, and the two ends of the enameled wire can be led out from one end of the detection core rod 1 through the winding grooves 3 of the double-spiral structures, so that the enameled wire is convenient to connect. The radius of the circular arc of the section of the winding groove 3 is set to be equal to the diameter of the enameled wire.
And carbon powder is coated on the outer surface of the enameled wire to be detected. The carbon powder is conductive, and the outer surface of the enameled wire is coated with the carbon powder and then wound on the detection core rod 1, so that the direct connection effect of the enameled wire and the detection core rod 1 is improved, and the detection accuracy is improved. The carbon powder may be coated continuously after the enamel wire is wound or coated with a brush after the enamel wire is wound on the inspection mandrel 1.
The current detection circuit 2 comprises a detection resistor and a differential operational amplifier, the detection resistor is connected in series in a connecting circuit between the detection core rod 1 and the switching power supply, and a positive phase input end and a negative phase input end of the differential operational amplifier are respectively connected to two sides of the detection resistor. The device also comprises an oscilloscope which is connected with the current detection circuit 2. The current detection circuit 2 is arranged to convert the current signal passing through the detection core rod 1 into a voltage signal for output, and the voltage signal is displayed by an oscilloscope, so that the direct-viewing observation is facilitated
The current detection circuit also comprises a microprocessor and an alarm device, wherein the output signal of the current detection circuit 2 is input to the microprocessor after analog-to-digital conversion, the alarm device is connected with the microprocessor and controlled by the microprocessor, and when the output signal of the current detection circuit 2 reaches a preset value, the microprocessor controls the alarm device to alarm. The alarm device comprises one or more of a flashing light and a buzzer. And a microprocessor and an alarm device are arranged, and an alarm is given when the current detection circuit 2 detects a signal, so that the worker is reminded that the insulating property of the enameled wire is unqualified.
Example two: referring to fig. 1-5, a dry-type enameled wire insulation detection device is different from the first embodiment in that the dry-type enameled wire insulation detection device further includes a detection box 4, an internal thread is disposed at a mouth of the detection box 4, the detection box 4 is made of an insulating material, carbon powder is disposed in the detection box 4, a detection core rod 1 wound around an enameled wire to be detected is placed in the detection box 4, and an external thread for connecting with the internal thread at the mouth of the detection box 4 is disposed on the detection core rod 1. During detection, the detection core rod 1 extends into the detection box 4, and carbon powder in the detection box 4 can improve detection precision. The detection core rod 1 is provided with a hole so that the enameled wire wound on the detection core rod 1 can extend out.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.
Claims (8)
1. The utility model provides an enameled wire insulating dry-type detection device, a serial communication port, including switching power supply, detect plug (1) and circuit detection circuit, switching power supply's one utmost point is connected with detecting plug (1), another utmost point is connected with the enameled wire that waits to detect, be equipped with spiral winding groove (3) on detecting plug (1), the cross-section of winding groove (3) is semi-circular, the enameled wire winding that waits to detect is in winding groove (3), current detection circuit (2) establish ties on the connecting circuit between detecting plug (1) and switching power supply.
2. The enameled wire insulation dry-type detection device according to claim 1, wherein there are two groups of winding slots (3), and the two groups of winding slots (3) are in a double-helix structure.
3. The enameled wire insulation dry-type detection device according to claim 1, wherein the outer surface of the enameled wire to be detected is coated with carbon powder.
4. The enameled wire insulation dry-type detection device according to claim 1, further comprising a detection box (4), wherein an opening of the detection box (4) is provided with internal threads, the detection box (4) is made of an insulating material, carbon powder is arranged in the detection box (4), a detection core rod (1) wound around the enameled wire to be detected is placed in the detection box (4), and the detection core rod (1) is provided with external threads for being connected with the internal threads at the opening of the detection box (4).
5. The enameled wire insulation dry-type detection device according to claim 1, wherein the current detection circuit (2) comprises a detection resistor and a differential operational amplifier, the detection resistor is connected in series in a connection circuit between the detection core rod (1) and the switching power supply, and a positive phase input end and a negative phase input end of the differential operational amplifier are respectively connected to two sides of the detection resistor.
6. The enameled wire insulation dry-type detection device according to claim 5, further comprising an oscilloscope, wherein the oscilloscope is connected with the current detection circuit (2).
7. The enameled wire insulation dry-type detection device according to claim 6, characterized in that, the dry-type detection device further comprises a microprocessor and an alarm device, the output signal of the current detection circuit (2) is input to the microprocessor after analog-to-digital conversion, the alarm device is connected with and controlled by the microprocessor, and when the output signal of the current detection circuit (2) reaches a preset value, the microprocessor controls the alarm device to alarm.
8. The enameled wire insulation dry-type detection device according to claim 7, wherein the alarm device comprises one or more of a flashing light and a buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120937193.9U CN215219121U (en) | 2021-04-30 | 2021-04-30 | Enameled wire insulating dry-type detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120937193.9U CN215219121U (en) | 2021-04-30 | 2021-04-30 | Enameled wire insulating dry-type detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215219121U true CN215219121U (en) | 2021-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120937193.9U Active CN215219121U (en) | 2021-04-30 | 2021-04-30 | Enameled wire insulating dry-type detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215219121U (en) |
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2021
- 2021-04-30 CN CN202120937193.9U patent/CN215219121U/en active Active
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