CN202049211U - Line sequence leakage detection device for electric mounting - Google Patents
Line sequence leakage detection device for electric mounting Download PDFInfo
- Publication number
- CN202049211U CN202049211U CN201120121584XU CN201120121584U CN202049211U CN 202049211 U CN202049211 U CN 202049211U CN 201120121584X U CN201120121584X U CN 201120121584XU CN 201120121584 U CN201120121584 U CN 201120121584U CN 202049211 U CN202049211 U CN 202049211U
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- emitting diode
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a line sequence leakage detection device for electric mounting, comprising a shell and a circuit board. The line sequence leakage detection device is characterized in that the circuit board is assembled in the shell; a lighting display and a button are arranged on the right side of the shell, the reverse side of the shell is provided with a phase line inserting rod, a null wire inserting rod and an earth line inserting rod, wherein the phase line inserting rod, the null wire inserting rod, the earth line inserting rod, the lighting display and the button are all electrically connected with the circuit board. When the electric construction of the civil architecture is completed, the line sequence leakage detection device is only needed to be inserted into corresponding socket in a room in the same way that the power plug of household appliance is inserted, so that different wiring errors can be determined by the light display and the testing button. The problems of incapability of detecting by a test pencil and a plurality of errors in electric mounting in the room can be solved, and a leakage safety cut-out can be detected on site and is convenient to use and observe. In the device, light emitting diodes are used to display so that the brightness can be indicated; different colors are collocated so that the operation is more visual; and the line sequence leakage detection device avoids the defect that the test pencil employing neon bulb to light cannot obviously display under powerful light.
Description
Technical field
The utility model relates to a kind of pick-up unit, is specifically related to a kind of electric installation line preface earth detector.
Background technology
Covil construction are electric at line construction with after installing, whether " line preface " for line layout adheres to specification, often feel simply helpless, or employing simple tools, as detecting with electroscope, but electroscope can only be judged " phase line " (being commonly called as live wire) under the indoor power supply situation, and still powerless for zero line and protective ground line; Modern covil construction are electric; in order to take precautions against the harm of home electric electric leakage to life; except that adopting earthing of casing protection; electric administrative department is expressly provided; newly-built covil construction want each household that electric leakage protector is installed without exception, in case purpose is circuit or household electrical appliance leaks electricity, when the someone gets an electric shock again, when leakage current during greater than 30uA; electric leakage protector just should move, and blocks power supply.Past; detection to the leak source protector that installed; powerless; individual other technician adopts the method for bulb and temporary ground wire; between the phase line of socket and ground wire, test; the electric leakage protector switch motion; circuit is described; the electric leakage protector wiring is error-free; but in case when leakage switch occurring and being failure to actuate, can't judge that then it still is that the leakage switch wiring has problem that the protective ground line has broken, this method is not only unreliable; and reach not women complete; careless slightly in the test, promptly can get an electric shock or the burn-out test utensil, it is dangerous therefore doing this test.
The utility model content
The purpose of this utility model is exactly the defective that exists at prior art, and a kind of electric installation simple in structure and safe in utilization line preface earth detector is provided.
Its technical scheme is: comprise housing and circuit board.Described circuit board is installed in enclosure interior, and the housing front is provided with luminous demonstration and button, and the housing reverse side is equipped with phase line and plugs in pricker, the plug in pricker of zero line and the plug in pricker of ground wire; Described phase line is plugged in pricker, zero line is plugged in pricker, the slotting luminous demonstration of pricker of ground wire and button and all is electrically connected with circuit board.
Described circuit board by integrated circuit, zero line resistance, line resistance, first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, first button, second button, first diode, second diode, first light emitting diode, second light emitting diode, the 3rd light emitting diode and power circuit form; One end of described zero line resistance, an input end of the end of an end, the 7th resistance of negative pole, the 6th resistance of negative pole, the 3rd light emitting diode of negative pole, second light emitting diode of an end, first light emitting diode of an end, first button of line resistance and power circuit connect the back and be connected with the plug in pricker of phase line; Described zero line is plugged in pricker and is connected with the other end of zero line resistance, an end of second resistance, another input end of power circuit and the positive pole of first diode, the negative pole of first diode is connected with the other end of the 7th resistance and the positive input terminal of integrated circuit by the 4th resistance, and the other end of second resistance is connected with the positive pole of first light emitting diode; Described ground wire is plugged in pricker and is connected with the other end of ground line resistance, the other end of first resistance, the other end of the 3rd resistance and the positive pole of second diode, the negative pole of second diode is connected with the other end of the 6th resistance and the negative input end of integrated circuit by the 5th resistance, the other end of first resistance is connected with the other end of first button, and the other end of the 3rd resistance is connected with the positive pole of second light emitting diode; The cathode output end of described power circuit is connected with the power positive end of integrated circuit, and the cathode output end of power circuit extremely is connected with the power-of integrated circuit by second button; The output terminal of described integrated circuit is connected by the positive pole of the 8th resistance with the 3rd light emitting diode.Described integrated circuit is an operational amplifier.Described power circuit is the AC/DC switch voltage-stabilizing circuit.
The utility model only needs the attaching plug of this device as household electrical appliance inserted in the indoor respective socket after the covil construction electrical construction is finished, and just can show the discord test button from light, judges various wiring errors.Solved with test pencil and can not judge, all Problem-Errors during indoor electric is installed, and just can detect electric leakage protector at the scene, use and observe easily, this device is owing to be to use diode displaying, and indication is bright, join different colors in the use, then more directly perceived, come into plain view; Overcome test pencil and adopted neon bulb luminous, under the high light line, shown unconspicuous defective.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the circuit theory diagrams of a kind of embodiment of the utility model.
Embodiment
With reference to Fig. 1-Fig. 2, a kind of electric installation comprises housing 1 and circuit board 2 with line preface earth detector.Described circuit board 2 is installed in housing 1 inside, and housing 1 front is provided with luminous demonstration and button, and housing 1 reverse side is equipped with phase line and plugs in pricker L, the plug in pricker N of zero line and the plug in pricker E of ground wire; Described phase line is plugged in pricker L, zero line is plugged in pricker N, the slotting luminous demonstration of pricker E of ground wire and button and all is electrically connected with circuit board 2.
Described circuit board 2 is made up of integrated circuit (IC), zero line resistance R N, ground wire resistance R E, first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the first button A1, the second button A2, the first diode D1, the second diode D2, the first light emitting diode H1, the second light emitting diode H2, the 3rd light emitting diode H3 and power circuit DY; The input end of one end of the negative pole of the end of the end of the end of described zero line resistance R N, ground wire resistance R E, the first button A1, the negative pole of the first light emitting diode H1, the second light emitting diode H2, the negative pole of the 3rd light emitting diode H3, the 6th resistance R 6, an end of the 7th resistance R 7 and power circuit DY connects the back and is connected with the plug in pricker L of phase line; Described zero line is plugged in pricker N and is connected with the other end of zero line resistance R N, an end of second resistance R 2, another input end of power circuit DY and the positive pole of the first diode D1, the negative pole of the first diode D1 is connected with the other end of the 7th resistance R 7 and the positive input terminal of integrated circuit (IC) by the 4th resistance R 4, and the other end of second resistance R 2 is connected with the positive pole of the first light emitting diode H1; Described ground wire is plugged in pricker E and is connected with the other end of ground wire resistance R E, the other end of first resistance R 1, the other end of the 3rd resistance R 3 and the positive pole of the second diode D2, the negative pole of the second diode D2 is connected with the other end of the 6th resistance R 6 and the negative input end of integrated circuit (IC) by the 5th resistance R 5, the other end of first resistance R 1 is connected with the other end of the first button A1, and the other end of the 3rd resistance R 3 is connected with the positive pole of the second light emitting diode H2; The cathode output end of described power circuit DY is connected with the power positive end of integrated circuit (IC), and the cathode output end of power circuit DY extremely is connected with the power-of integrated circuit (IC) by the second button A2; The output terminal of described integrated circuit (IC) is connected with the positive pole of the 3rd light emitting diode H3 by the 8th resistance R 8.Described integrated circuit (IC) is an operational amplifier, and its model can adopt LM324.Described power circuit DY is the AC/DC switch voltage-stabilizing circuit.
During operation, the attaching plug of this device as household electrical appliance inserted in the indoor respective socket:
(1) when phase line, zero line and ground wire were all correct, the first light emitting diode H1 and the second light emitting diode H2 were all luminous; Press the second button A2, the 3rd light emitting diode H3 is also luminous.
(2) when the dislocation of phase line and zero line, when ground wire is correct, the first light emitting diode H1 is luminous, the second light emitting diode H2 is not luminous; Press the second button A2, the 3rd light emitting diode H3 is also luminous.
(3) correct when phase line, when zero line misplaces with ground wire, the first light emitting diode H1 and the second light emitting diode H2 are all luminous, press the second button A2, the 3rd light emitting diode H3 is not luminous.
(4) correct when zero line, when phase line misplaces with ground wire, the second light emitting diode H2 is luminous, the first light emitting diode H1 is not luminous; Press the second button A2, the 3rd light emitting diode H3 is not luminous.
(4) when phase line, zero line and ground wire are all incorrect, the second light emitting diode H2 is luminous, and the first light emitting diode H1 is not luminous; Press the second button A2, the 3rd light emitting diode H3 is not luminous.
When phase line, zero line and ground wire are all correct, press the first button A1, can test whether operate as normal of earth leakage protective device by first resistance R, 1 simulation human body.
Claims (4)
1. an electric installation comprises housing and circuit board with line preface earth detector, and it is characterized in that: described circuit board is installed in enclosure interior, and the housing front is provided with luminous demonstration and button, and the housing reverse side is equipped with phase line and plugs in pricker, the plug in pricker of zero line and the plug in pricker of ground wire; Described phase line is plugged in pricker, zero line is plugged in pricker, the slotting luminous demonstration of pricker of ground wire and button and all is electrically connected with circuit board.
2. electric installation according to claim 1 is characterized in that with line preface earth detector: described circuit board by integrated circuit, zero line resistance, line resistance, first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, first button, second button, first diode, second diode, first light emitting diode, second light emitting diode, the 3rd light emitting diode and power circuit form; One end of described zero line resistance, an input end of the end of an end, the 7th resistance of negative pole, the 6th resistance of negative pole, the 3rd light emitting diode of negative pole, second light emitting diode of an end, first light emitting diode of an end, first button of line resistance and power circuit connect the back and be connected with the plug in pricker of phase line; Described zero line is plugged in pricker and is connected with the other end of zero line resistance, an end of second resistance, another input end of power circuit and the positive pole of first diode, the negative pole of first diode is connected with the other end of the 7th resistance and the positive input terminal of integrated circuit by the 4th resistance, and the other end of second resistance is connected with the positive pole of first light emitting diode; Described ground wire is plugged in pricker and is connected with the other end of ground line resistance, the other end of first resistance, the other end of the 3rd resistance and the positive pole of second diode, the negative pole of second diode is connected with the other end of the 6th resistance and the negative input end of integrated circuit by the 5th resistance, the other end of first resistance is connected with the other end of first button, and the other end of the 3rd resistance is connected with the positive pole of second light emitting diode; The cathode output end of described power circuit is connected with the power positive end of integrated circuit, and the cathode output end of power circuit extremely is connected with the power-of integrated circuit by second button; The output terminal of described integrated circuit is connected by the positive pole of the 8th resistance with the 3rd light emitting diode.
3. electric installation according to claim 2 line preface earth detector, it is characterized in that: described integrated circuit is an operational amplifier.
4. electric installation according to claim 2 line preface earth detector, it is characterized in that: described power circuit is the AC/DC switch voltage-stabilizing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120121584XU CN202049211U (en) | 2011-04-22 | 2011-04-22 | Line sequence leakage detection device for electric mounting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120121584XU CN202049211U (en) | 2011-04-22 | 2011-04-22 | Line sequence leakage detection device for electric mounting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202049211U true CN202049211U (en) | 2011-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120121584XU Expired - Fee Related CN202049211U (en) | 2011-04-22 | 2011-04-22 | Line sequence leakage detection device for electric mounting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202049211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100607A (en) * | 2018-08-15 | 2018-12-28 | 深圳市华博精测科技有限公司 | socket tester |
-
2011
- 2011-04-22 CN CN201120121584XU patent/CN202049211U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100607A (en) * | 2018-08-15 | 2018-12-28 | 深圳市华博精测科技有限公司 | socket tester |
| CN109100607B (en) * | 2018-08-15 | 2024-06-04 | 东莞市华博精测仪表科技有限公司 | Socket tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20130422 |