CN203630260U - Novel electronic electricity detection device - Google Patents
Novel electronic electricity detection device Download PDFInfo
- Publication number
- CN203630260U CN203630260U CN201320533278.6U CN201320533278U CN203630260U CN 203630260 U CN203630260 U CN 203630260U CN 201320533278 U CN201320533278 U CN 201320533278U CN 203630260 U CN203630260 U CN 203630260U
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- field effect
- resistance
- link
- selector switch
- negative pole
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Abstract
The utility model aims at providing an electronic electricity detection device for building pipeline electrification or electrical equipment grounding. The device is characterized in that an electric field effect detection circuit (1) is connected with a voltage detection circuit (2). As the electric field effect principle of the field effect tube is adopted, detection trouble caused by the use of an electronic meter and damages to the wire pipelines can be avoided, and operation on the building pipelines and electric equipment grounding detection is simplified.
Description
Affiliated technical field:
The utility model relates to a kind of electronic detecting device of and electrical equipment grounding charged to building pipeline.
Background technology:
Traditional pick-up unit is by the direct contact detection of ammeter, complicated operation, difficulty.And pipeline is caused to certain damage.
Summary of the invention:
The purpose of this utility model be to provide a kind of to building pipeline charged and electrical equipment grounding electronic detecting device, it is characterized in that: field effect testing circuit (1) is connected with voltage detecting circuit (2).The effect of field effect testing circuit (1) is to utilize field effect between itself and electrical equipment charged and electrical equipment grounding detects to the pipeline of building.Voltage detecting circuit (2) is that above-mentioned field effect current conversion is become to detection signal, and to the pipeline of above-mentioned building, charged and electrical equipment grounding detects.If the electric wire in building pipeline (with the pipe of one or more electric wire) is all without electricity or electrical equipment shell ground connection, voltage detecting circuit (2) is reactionless, if voltage detecting circuit (2) have lasting reaction (luminous) show to have in pipe power lead or electrical equipment shell no ground, if voltage detecting circuit (2) has interrupted reaction (luminous) to show there is signal wire in pipe, strong reaction while generally having power lead or electrical equipment shell no ground, reacts small and weak while having signal wire; Field effect testing circuit (1) is nearer with tested pipeline, and signal is stronger, otherwise more weak, so, in the time detecting, should determine coverage between the two.
The utility model can be perfect like this: field effect testing circuit (1) is connected with the grid of field effect transistor (12) by the link (10) of selector switch (13), another link (11) of selector switch (13) is connected with the other end of the second resistance (5), power supply (8) negative pole, and the manual selecting side (9) of selector switch (13) is positioned at and between link (10), link (11), forms and be connected with the source electrode of field effect transistor (12).When detection, the manual selecting side (9) of selector switch (13) is selected to hold in both hands to pull out to connect link (11), the drain electrode of field effect transistor (12) is connected with the negative pole of one end of the first resistance (3), voltage stabilizing diode (4); The other end of the first resistance (3) is connected with the positive pole of light emitting diode (6), power supply (8) positive pole; The collector of triode (7) is connected with the negative pole of light emitting diode (6), the base stage of triode (7) is connected with the positive pole of voltage stabilizing diode (4), and the emitter of triode (7) is connected with one end of the second resistance (5).Field effect transistor (12) grid is near pipeline or electrical equipment, if pipeline is charged or electrical equipment shell is no ground, the resistance change between drain electrode and source electrode causes greatly drain potential to raise, in the time that potential voltage is greater than voltage stabilizing diode (4) operating voltage, make voltage stabilizing diode (4) conducting, the base stage of triode (7) has working current to flow through.Thereby make collector have working current to flow through simultaneously, cause light emitting diode (6) luminous.If pipeline is not charged or the electrical equipment earthing of casing, light emitting diode (6) is not luminous.As signal generator, light emitting diode (6) also can replace with electronic sound generator; While detection, the manual selecting side (9) of selector switch (13) is selected to hold in both hands to pull out to connect link (10).
The utility model can be perfect like this: the first resistance (3) is adjustable resistance.The effect of the first resistance (3) is to determine according to the needs that detect the voltage range detecting, thereby can on purpose detect different detected objects.
The utility model is owing to having adopted the field effect principle of field effect transistor, thus the infringement that the detection of having avoided use electronic watch to bring bothers and electric wire pipeline is caused, thus simplify the operation to building pipeline and electrical equipment earthing of casing detection.
Brief description of the drawings:
Fig. 1, a kind of block diagram of the present utility model.
Fig. 2, a kind of product circuit figure of the present utility model.
Embodiment:
See Fig. 1, Fig. 2, field effect testing circuit (1) is connected with the grid of field effect transistor (12) by the link (10) of selector switch (13), another link (11) of selector switch (13) is connected with the other end of the second resistance (5), power supply (8) negative pole, the manual selecting side (9) of selector switch (13), is positioned at and between link (10), link (11), forms and be connected with the source electrode of field effect transistor (12).When detection, the manual selecting side (9) of selector switch (13) is selected to hold in both hands to pull out to connect link (11), the drain electrode of field effect transistor (12) is connected with the negative pole of one end of the first resistance (3), voltage stabilizing two utmost point field pipes (4); The other end of the first resistance (3) is connected with the positive pole of light emitting diode (6), power supply (8) positive pole; The collector of triode (7) is connected with the negative pole of light emitting diode (6), and the base stage of triode (7) is connected with the positive pole of voltage stabilizing diode (4); The emitter of triode (7) is connected with one end of the second resistance (5); Another link (11) of selector switch (13) is connected with the other end of the second resistance (5), power supply (8) negative pole.
Power supply (8): DC3.7V, field effect transistor (12) model: 3DJ7, triode (7) model: 8050.
Claims (1)
1. a novel electron is surveyed electric installation, it is characterized in that: field effect testing circuit (1) is connected with voltage detecting circuit (2), field effect testing circuit (1) is connected with the grid of field effect transistor (12) by the link (10) of selector switch (13), another link (11) of selector switch (13) and the other end of the second resistance (5), power supply (8) negative pole connects, the manual selecting side (9) of selector switch (13), be positioned at link (10), between link (11), form and be connected with the source electrode of field effect transistor (12), when detection, the manual selecting side (9) of selector switch (13) is selected to hold in both hands to pull out to connect link (11), one end of the drain electrode of field effect transistor (12) and the first resistance (3), the negative pole of voltage stabilizing two utmost point field pipes (4) connects, the other end of the first resistance (3) is connected with the positive pole of light emitting diode (6), power supply (8) positive pole, the collector of triode (7) is connected with the negative pole of light emitting diode (6), and the base stage of triode (7) is connected with the positive pole of voltage stabilizing diode (4), the emitter of triode (7) is connected with one end of the second resistance (5), another link (11) of selector switch (13) is connected with the other end of the second resistance (5), power supply (8) negative pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320533278.6U CN203630260U (en) | 2013-08-27 | 2013-08-27 | Novel electronic electricity detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320533278.6U CN203630260U (en) | 2013-08-27 | 2013-08-27 | Novel electronic electricity detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203630260U true CN203630260U (en) | 2014-06-04 |
Family
ID=50816722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320533278.6U Expired - Fee Related CN203630260U (en) | 2013-08-27 | 2013-08-27 | Novel electronic electricity detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203630260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645877A (en) * | 2016-12-30 | 2017-05-10 | 广东华建电气消防安全检测有限公司 | Novel building firefighting equipment electronic maintenance detection device |
-
2013
- 2013-08-27 CN CN201320533278.6U patent/CN203630260U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645877A (en) * | 2016-12-30 | 2017-05-10 | 广东华建电气消防安全检测有限公司 | Novel building firefighting equipment electronic maintenance detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Jiang Biyang Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20140827 |
|
| EXPY | Termination of patent right or utility model |