CN103267887A - Alternating current electricity testing indicator - Google Patents
Alternating current electricity testing indicator Download PDFInfo
- Publication number
- CN103267887A CN103267887A CN2013101453023A CN201310145302A CN103267887A CN 103267887 A CN103267887 A CN 103267887A CN 2013101453023 A CN2013101453023 A CN 2013101453023A CN 201310145302 A CN201310145302 A CN 201310145302A CN 103267887 A CN103267887 A CN 103267887A
- Authority
- CN
- China
- Prior art keywords
- light emitting
- emitting diode
- resistance
- circuit inspection
- electrical circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses an alternating current electricity testing indicator comprising a rectifier bridge assemblies (DB1, DB2 and DB3) with the input ends connected with an alternating current, wherein the output ends of the rectifier bridge assemblies (DB1, DB2 and DB3) are connected with a normally closed electricity testing circuit and a checkout electricity testing circuit; the normally closed electricity testing circuit comprises light emitting diodes (LED11, LED21 and LED31), audions (Q1, Q2 and Q3), resistors (R5, R9 and R11), resistors (R6, R10 and R12) and diodes (D6, D7 and D8); the checkout electricity testing circuit comprises light emitting diodes (LED12, LED 22 and LED32), resistors (R16, R17 and R18) and a switch (SW). The alternating current electricity testing indicator has the advantages that whether a circuit is alive or not can be shown even when the commonly used light emitting diodes are damaged.
Description
Technical field
The present invention relates to testing circuit, especially relate to a kind of can light emitting diode commonly used be damaged also can cue circuit charged interchange electrical verification indicator whether.
Background technology
In the distribution cabinet, be used to indicate the electrical verification indicator of high-tension switch cabinet three-phase voltage, whether adopt the shinny of light emitting diode and extinguishing to indicate three lines of electrical network to have usually charged, and there is following shortcoming in the electrical verification indicator that uses at present:
1), because the electrical verification indicator is installed in on-the-spot 1 year 365 days all at illuminating state, add the age limit of light emitting diode, general electrical verification indication all occurs LED light lamp in 2 years and damages and can't light situation coming into operation;
2), existing electrical verification indicator; directly power to light emitting diode after all adopting full-bridge rectification by the resistance current limliting; when three-phase and four-line is imported; only adopt line to carry out surge protection over the ground; and the voltage between line was not carried out surge protection, thereby can't protect the full-bridge rectification pipe to cross the reverse voltage punch through damage and the light emitting diode over-voltage and over-current fires bad phenomenon.
Whether the combustion of light emitting diode is bad can't directly indicate power network line charged, safeguards and circuit when breaking down the maintainer to electrical network can't confirm accurately whether circuit is charged, and the danger of electric shock is accidentally arranged at any time, and personal safety is guarantee not.
Summary of the invention
For overcoming there is potential safety hazard in traditional electrical verification indicator after light emitting diode damages shortcoming, provide a kind of can light emitting diode commonly used be damaged also can cue circuit charged interchange electrical verification indicator whether.
The objective of the invention is to realize by following technical measures, a kind of interchange electrical verification indicator, comprise that input end connects the rectifier bridge heap whole (DB1, DB2, DB3) of alternating current, the output terminal of described rectifier bridge heap (DB1, DB2, DB3) is parallel with a normally closed electrical circuit inspection and a check electrical circuit inspection;
Described normally closed electrical circuit inspection comprises light emitting diode (LED11, LED21, LED31), triode (Q1, Q2, Q3), resistance (R5, R9, R11), resistance (R6, R10, R12), diode (D6, D7, D8), light emitting diode (LED11, LED21, LED31) positive pole connects rectifier bridge heap (DB1, DB2, DB3) positive output end, light emitting diode (LED11, LED21, LED31) negative pole connects triode (Q1, Q2, Q3) collector, triode (Q1, Q2, Q3) emitter is by resistance (R5, R9, R11) connecting to neutral line or meet rectifier bridge heap (DB1, DB2, DB3) negative output terminal, triode (Q1, Q2, Q3) base stage draws two the tunnel, wherein lead up to resistance (R6, R10, R12) be connected to rectifier bridge heap (DB1, DB2, DB3) positive output end, another road is by diode (D6, D7, D8) connect the check electrical circuit inspection;
Described check electrical circuit inspection comprises light emitting diode (LED12, LED22, LED32), resistance (R16, R17, R18) and switch SW 1, the positive pole of light emitting diode (LED12, LED22, LED32) connects rectifier bridge heap positive output end, the cathode series resistance (R16, R17, R18) of light emitting diode (LED12, LED22, LED32), switch SW 1 back connecting to neutral line or connect the negative output terminal of rectifier bridge heap, diode (D6, D7, D8) tie point is between resistance (R16, R17, R18) and switch SW 1.
When normal power supply, switch SW 1 disconnects, the base stage of triode this moment (Q1, Q2, Q3) has electric current to flow through, electric current after the rectification forms the loop through light emitting diode (LED11, LED21, LED31), resistance (R6, R10, R12) with the negative output terminal of zero line or rectifier bridge heap (DB1, DB2, DB3), this moment, normally closed electrical circuit inspection was that the closed circuit electrical circuit inspection of checking is open circuit, light emitting diode (LED11, LED21, LED31) is lighted, and light emitting diode (LED12, LED22, LED32) is not worked;
As Closing Switch SW1, the base stage of triode this moment (Q1, Q2, Q3) is by short circuit, no current flows through, electric current after the rectification forms the loop through light emitting diode (LED12, LED22, LED32), resistance (R16, R17, R18), switch SW 1 with the negative output terminal of zero line or rectifier bridge heap (DB1, DB2, DB3), this moment normally closed electrical circuit inspection to check electrical circuit inspection for open circuit be closed circuit, light emitting diode (LED11, LED21, LED31) is not worked, and light emitting diode (LED12, LED22, LED32) is lighted.
Concrete, described normally closed electrical circuit inspection all is respectively to be connected with the check electrical circuit inspection and exchanges three tunnel of triple-phase line.
As a kind of optimal way, the input end of described rectifier bridge heap whole (DB1, DB2, DB3) is serially connected with two current-limiting resistances (R1 and R4, R2 and R7, R3 and R8).For reducing the electric current for the LED power supply.
Concrete, be parallel with the voltage stabilizing diode (D1, D2, D3) of 33V on the described normally closed electrical circuit inspection.Be used for guaranteeing that light emitting diode can not burn out because of overvoltage.
As a kind of optimal way, the base stage of triode (Q1, Q2, Q3) is connected to emitter by resistance (R13, R14, R15), and resistance (R13, R14, R15) resistance is greater than resistance (R5, R9, R11), and the output terminal of described normally closed electrical circuit inspection oppositely is serially connected with the voltage stabilizing diode D4 of a 16V.Be used for to improve light emitting diode (LED11, LED21, LED31) current potential over the ground, light emitting diode (LED11, LED21, LED31) extinguishes fully when guaranteeing that light emitting diode (LED12, LED22, LED32) is bright.
As a kind of optimal way, be serially connected with a hummer SP1 on the described check electrical circuit inspection.Thereby can point out with sound.
As a kind of optimal way, be serially connected with thermistor F1, F2, F3 on each phase line of alternating current input end, be connected with thermistor RZ1, RZ2, RZ3, RZ4, RZ5, RZ6 between the triple-phase line and between triple-phase line and the zero line respectively.Cross between being used for forming relatively and cross surge protection between surge protection and Line To Line.
As a kind of convenient optimal way of observing, light emitting diode (LED11, LED21, LED31) is heterochromatic each other with light emitting diode (LED12, LED22, LED32).
Concrete, of the same colour in the red-green glow dichromatic LED respectively of light emitting diode (LED11, LED21, LED31) and light emitting diode (LED12, LED22, LED32).
As the convenient optimal way of observing of another kind, light emitting diode (LED11, LED21, LED31) is arranged on different positions with light emitting diode (LED12, LED22, LED32).
The present invention is under the situation not according to button, by the indication of the light emitting diode in normally closed electrical circuit inspection circuit electriferous state, light emitting diode in the check electrical circuit inspection is not worked, has only the luminous indication circuit electriferous state of light emitting diode ability in the check electrical circuit inspection when pushing button, also hummer rings simultaneously, and the light emitting diode in the normally closed electrical circuit inspection is not worked; Because the light emitting diode in the check electrical circuit inspection normally is in off position, so the light emitting diode overlength in serviceable life in the check electrical circuit inspection.
Power supply of the present invention can be imported and carry out surge protection between employing relatively, carries out surge protection between Line To Line.Added defencive function can protect full-bridge rectification Guan Buhui to fire bad phenomenon because of crossing reverse voltage punch through damage and light emitting diode over-voltage and over-current.
The present invention also can adopt luminous quantity big, the dichromatic LED that working current is little (red-green glow), and the working current that reduces light emitting diode can prolong its life-span, works about 11 years under the normal condition 10W hour.
Description of drawings
Fig. 1 is the circuit theory diagrams of the embodiment of the invention.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing the present invention is described in further detail.
As Fig. 1, a kind of interchange electrical verification indicator, comprise that input end is respectively by two current-limiting resistance R1 and R4, R2 and R7, R3 is connected alternating current triple-phase line L1 with R8, L2, the whole DB1 of rectifier bridge heap of L3, DB2, DB3, described rectifier bridge heap DB1, DB2, the output terminal of DB3 respectively is parallel with a normally closed electrical circuit inspection and a check electrical circuit inspection, each phase line L1 of alternating current input end, L2, be serially connected with thermistor F1 on the L3, F2, F3, triple-phase line L1, L2, between the L3 and triple-phase line L1, L2, be connected with thermistor RZ1 respectively between L3 and the zero line N, RZ2, RZ3, RZ4, RZ5, cross between RZ6 is used for forming relatively and cross surge protection between surge protection and Line To Line; Wherein,
Normally closed electrical circuit inspection respectively comprises the diode (LED) 11 (LED21 that glow, LED31), triode Q1 (Q2, Q3), resistance R 5 (R9, R11), resistance R 6 (R10, R12), diode D6 (D7, D8), diode (LED) 11 (LED21 glow, LED31) positive pole connects rectifier bridge heap DB1 (DB2, DB3) positive output end, diode (LED) 11 (LED21 glow, LED31) negative pole connects triode Q1 (Q2, Q3) collector, triode Q1 (Q2, Q3) emitter is by resistance R 5 (R9, R11) connecting to neutral line or meet rectifier bridge heap DB1 (DB2, DB3) negative output terminal, triode Q1 (Q2, Q3) base stage draws two the tunnel, wherein lead up to resistance R 6 (R10, R12) be connected to rectifier bridge heap DB1 (DB2, DB3) positive output end, another road is by diode D6 (D7, D8) connect the check electrical circuit inspection also by resistance R 13 (R14, R15) be connected to emitter, and resistance R 13 (R14, R15) resistance is greater than resistance R 5 (R9, R11), the output terminal of described normally closed electrical circuit inspection oppositely is serially connected with the voltage stabilizing diode D4 of a 16V, be used for improving the diode (LED) 11 (LED21 that glow, LED31) current potential over the ground, guarantee green light diode (LED) 12 (LED22, diode (LED) 11 (LED21 glow when LED32) bright, LED31) extinguish fully, whole DB1 (the DB2 of rectifier bridge heap, DB3) input end is serially connected with two current-limiting resistance R1 and R4 (R2 and R7, R3 and R8), for reducing the electric current for the LED power supply;
The check electrical circuit inspection comprises green light diode (LED) 12 (LED22, LED32), resistance R 16 (R17, R18) and switch SW 1, the positive pole of green light diode (LED) 12 (LED22, LED32) connects rectifier bridge heap positive output end, connecting to neutral line or connect the negative output terminal of rectifier bridge heap behind the cathode series resistance R16 (R17, R18) of green light diode (LED) 12 (LED22, LED32), switch SW 1, the hummer SP1, diode D6 (D7, D8) tie point is between resistance R 16 (R17, R18) and switch SW 1.
When normal power supply, switch SW 1 disconnects, the base stage of triode Q1 this moment (Q2, Q3) has electric current to flow through, electric current after the rectification forms the loop through the negative output terminal of the diode (LED) 11 that glows (LED21, LED31), resistance R 6 (R10, R12), voltage stabilizing diode D4 and zero line or rectifier bridge heap DB1 (DB2, DB3), this moment, normally closed electrical circuit inspection was that the closed circuit electrical circuit inspection of checking is open circuit, the diode (LED) 11 (LED21, LED31) that glows is lighted, and green light diode (LED) 12 (LED22, LED32) is not worked; Of the same colour in the red-green glow dichromatic LED of diode (LED) 11 (LED21, LED31) and green light diode (LED) 12 (LED22, LED32) glows.
As Closing Switch SW1, the base stage of triode Q1 this moment (Q2, Q3) is by short circuit, no current flows through, electric current after the rectification forms the loop through the negative output terminal of green light diode (LED) 12 (LED22, LED32), resistance R 16 (R17, R18), switch SW 1, hummer SP1 and zero line or rectifier bridge heap DB1 (DB2, DB3), this moment normally closed electrical circuit inspection to check electrical circuit inspection for open circuit be closed circuit, the diode (LED) 11 (LED21, LED31) that glows is not worked, and green light diode (LED) 12 (LED22, LED32) is lighted while hummer SP1 and rung.The light emitting diode of normally closed electrical circuit inspection also can be arranged on different positions with the light emitting diode of check electrical circuit inspection in other embodiments, can observe the charged situation under the different operating state equally easily.
More than be the present invention to be exchanged the electrical verification indicator set forth; be used for helping to understand the present invention; but embodiments of the present invention are not restricted to the described embodiments; anyly do not deviate from the change done under the principle of the invention, modification, substitute, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. one kind exchanges the electrical verification indicator, it is characterized in that: comprise that input end connects the rectifier bridge heap whole (DB1, DB2, DB3) of alternating current, the output terminal of described rectifier bridge heap (DB1, DB2, DB3) is parallel with a normally closed electrical circuit inspection and a check electrical circuit inspection;
Described normally closed electrical circuit inspection comprises light emitting diode (LED11, LED21, LED31), triode (Q1, Q2, Q3), resistance (R5, R9, R11), resistance (R6, R10, R12), diode (D6, D7, D8), light emitting diode (LED11, LED21, LED31) positive pole connects rectifier bridge heap (DB1, DB2, DB3) positive output end, light emitting diode (LED11, LED21, LED31) negative pole connects triode (Q1, Q2, Q3) collector, triode (Q1, Q2, Q3) emitter is by resistance (R5, R9, R11) connecting to neutral line or meet rectifier bridge heap (DB1, DB2, DB3) negative output terminal, triode (Q1, Q2, Q3) base stage draws two the tunnel, wherein lead up to resistance (R6, R10, R12) be connected to rectifier bridge heap (DB1, DB2, DB3) positive output end, another road is by diode (D6, D7, D8) connect the check electrical circuit inspection;
Described check electrical circuit inspection comprises light emitting diode (LED12, LED22, LED32), resistance (R16, R17, R18) and switch SW 1, the positive pole of light emitting diode (LED12, LED22, LED32) connects rectifier bridge heap positive output end, the cathode series resistance (R16, R17, R18) of light emitting diode (LED12, LED22, LED32), switch SW 1 back connecting to neutral line or connect the negative output terminal of rectifier bridge heap, diode (D6, D7, D8) tie point is between resistance (R16, R17, R18) and switch SW 1.
2. interchange electrical verification indicator according to claim 1 is characterized in that: described normally closed electrical circuit inspection all is respectively with the check electrical circuit inspection and is connected three tunnel of interchange triple-phase line.
3. interchange electrical verification indicator according to claim 1 and 2 is characterized in that: the input end of described rectifier bridge heap whole (DB1, DB2, DB3) is serially connected with two current-limiting resistances (R1 and R4, R2 and R7, R3 and R8).
4. interchange electrical verification indicator according to claim 1 and 2 is characterized in that: the voltage stabilizing diode (D1, D2, D3) that is parallel with 33V on the described normally closed electrical circuit inspection.
5. interchange electrical verification indicator according to claim 1 and 2, it is characterized in that: the base stage of triode (Q1, Q2, Q3) is connected to emitter by resistance (R13, R14, R15), and resistance (R13, R14, R15) resistance is greater than resistance (R5, R9, R11), and the output terminal of described normally closed electrical circuit inspection oppositely is serially connected with the voltage stabilizing diode D4 of a 16V.
6. interchange electrical verification indicator according to claim 1 and 2 is characterized in that: be serially connected with a hummer SP1 on the described check electrical circuit inspection.
7. interchange electrical verification indicator according to claim 1 and 2, it is characterized in that: be serially connected with thermistor F1, F2, F3 on each phase line of alternating current input end, be connected with thermistor RZ1, RZ2, RZ3, RZ4, RZ5, RZ6 between the triple-phase line and between triple-phase line and the zero line respectively.
8. interchange electrical verification indicator according to claim 1 and 2 is characterized in that: light emitting diode (LED11, LED21, LED31) is heterochromatic each other with light emitting diode (LED12, LED22, LED32).
9. interchange electrical verification indicator according to claim 8 is characterized in that: of the same colour in the red-green glow dichromatic LED respectively of light emitting diode (LED11, LED21, LED31) and light emitting diode (LED12, LED22, LED32).
10. interchange electrical verification indicator according to claim 1 and 2, it is characterized in that: light emitting diode (LED11, LED21, LED31) is arranged on different positions with light emitting diode (LED12, LED22, LED32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310145302.3A CN103267887B (en) | 2013-04-23 | 2013-04-23 | Alternating current indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310145302.3A CN103267887B (en) | 2013-04-23 | 2013-04-23 | Alternating current indicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103267887A true CN103267887A (en) | 2013-08-28 |
| CN103267887B CN103267887B (en) | 2016-02-10 |
Family
ID=49011526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310145302.3A Active CN103267887B (en) | 2013-04-23 | 2013-04-23 | Alternating current indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103267887B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954826A (en) * | 2014-05-09 | 2014-07-30 | 国家电网公司 | High-voltage alternating-current electroscope |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044711A (en) * | 1989-01-31 | 1990-08-15 | 上海电力设计研究所 | Ultrahigh voltage AC and DC electroscopic device |
| US20050046408A1 (en) * | 2002-03-20 | 2005-03-03 | Santronics, Inc. | Hand held voltage detection probe |
| CN201174330Y (en) * | 2008-03-19 | 2008-12-31 | 江苏省电力公司常州供电公司 | Live locking up electroscope device |
| CN202033409U (en) * | 2011-05-10 | 2011-11-09 | 冉顺才 | Safe multipurpose electroprobe |
| CN203324356U (en) * | 2013-04-23 | 2013-12-04 | 深圳市奇辉电气有限公司 | AC electricity testing indicator |
-
2013
- 2013-04-23 CN CN201310145302.3A patent/CN103267887B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044711A (en) * | 1989-01-31 | 1990-08-15 | 上海电力设计研究所 | Ultrahigh voltage AC and DC electroscopic device |
| US20050046408A1 (en) * | 2002-03-20 | 2005-03-03 | Santronics, Inc. | Hand held voltage detection probe |
| CN201174330Y (en) * | 2008-03-19 | 2008-12-31 | 江苏省电力公司常州供电公司 | Live locking up electroscope device |
| CN202033409U (en) * | 2011-05-10 | 2011-11-09 | 冉顺才 | Safe multipurpose electroprobe |
| CN203324356U (en) * | 2013-04-23 | 2013-12-04 | 深圳市奇辉电气有限公司 | AC electricity testing indicator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954826A (en) * | 2014-05-09 | 2014-07-30 | 国家电网公司 | High-voltage alternating-current electroscope |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103267887B (en) | 2016-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103346532B (en) | Electric leakage prevention plug circuit | |
| CN204422694U (en) | A kind of New single-phase Three-hole socket testing circuit | |
| CN104022486A (en) | Domestic multifunctional electricity protector | |
| CN203324356U (en) | AC electricity testing indicator | |
| CN103267887B (en) | Alternating current indicator | |
| CN204789793U (en) | Earth -leakage protector's state verification ware under explosion -proof environment | |
| CN204905855U (en) | Surge protector and have this surge protector's LED lighting device | |
| CN103296639B (en) | A kind of leakage warning and protective circuit | |
| CN203243023U (en) | Leakage alarm and protection circuit | |
| CN202260135U (en) | Medium-high voltage charge indicator applied in switch cabinet | |
| CN104035356A (en) | Ignition control circuit for gas appliance | |
| CN204083914U (en) | With the LED silk lamp of metal protector | |
| CN204287350U (en) | Protective relaying device tripping operation outlet proving installation | |
| CN103675592B (en) | A kind of battery voltage sampling line detection circuit | |
| CN204992522U (en) | Circuit protector | |
| CN106099840A (en) | The protection circuit of a kind of power circuit and power circuit | |
| CN207353818U (en) | A kind of lightning protection device state indicator module | |
| CN207249977U (en) | A kind of power firestreak zero curve misphase hidden danger Demonstrator Trials platform | |
| CN2829072Y (en) | Fuse assembly with circuit breaking indicator | |
| CN205863891U (en) | A kind of laboratory power of alterating and direct current short-circuit protection | |
| CN104515925A (en) | Cyclic lamp on-off test device | |
| CN203242092U (en) | Alarm system for preventing transformer from being stolen | |
| CN103135000B (en) | Testing circuit of temperature protector and testing device with same | |
| CN204794662U (en) | All -round protection security protection power | |
| CN204760345U (en) | Fuse supervisory circuits |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 zones 102, 103, 202 and 302a, No. 336-1, Xiangshan Avenue, Luotian community, Yanluo street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Shenzhen jinqihui Electric Co.,Ltd. Address before: 518055 Building 8, the second industrial zone, Xili Guanlong village, Nanshan District, Shenzhen, Guangdong Patentee before: SHENZHEN QIHUI ELECTRICAL Co.,Ltd. |