CN203688714U - Power line inspection tool - Google Patents
Power line inspection tool Download PDFInfo
- Publication number
- CN203688714U CN203688714U CN201420006292.5U CN201420006292U CN203688714U CN 203688714 U CN203688714 U CN 203688714U CN 201420006292 U CN201420006292 U CN 201420006292U CN 203688714 U CN203688714 U CN 203688714U
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- power
- module
- power line
- circuit
- power lead
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- 238000007689 inspection Methods 0.000 title claims abstract description 19
- 230000000087 stabilizing effect Effects 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 238000012797 qualification Methods 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract 2
- 238000011105 stabilization Methods 0.000 abstract 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model discloses a power line inspection tool comprising a power end, a power indication lamp, a short-circuit indication lamp, a plug end, a socket end, a step-down module, a rectifier module, a voltage stabilization module and an indication module. The power end is connected with the power indication lamp. The short-circuit indication lamp and the plug end are connected in series and then are in parallel connection with the power indication lamp. The socket end is connected to the indication module through the step-down module, the rectifier module and the voltage stabilization module orderly. According to the power line inspection tool, the short-circuit indication lamp is taken as a short-circuit load of a power line, the influence of power line short circuit on a common power supply can be eliminated, the short-circuit indication lamp is not lighted when a transformer works normally, the qualification of the power line is prompted only through normal light and sound prompt by the tool, the inspection speed of the power line is raised, a human error is avoided completely, and the display of a power line defect which is difficult to discover in multimeter low voltage is facilitated. The power line inspection tool can be widely used in the field of the circuit.
Description
Technical field
The utility model relates to circuit field, especially power lead inspection frock.
Background technology
Electric power connection line is electrical equipment, household electrical appliance and the most widely used accessory of electrotechnical, electronic instrument and meter.The quality of electric power connection line is directly connected to power supply quality and the Electrical Safety of these equipment, electrical equipment and instrument and meter.The electric power connection line quality of supply is very different in the market, open circuit or short circuit phenomenon happen occasionally, the lighter causes electrical equipment, household electrical appliance and electrotechnical, electronic instrument and meter to use or supply line tripping operation, and severe one can cause that electric power system is burnt, even human casualty accident of fire.Therefore the no matter manufacturing enterprise to electric power connection line or the use enterprise of electric power connection line, carries out the detection of electric power connection line is seemed to particularly important.
But in actual applications, the method that electric power connection line detects normally manual operation multimeter completes, detection method is backward, efficiency is low, and accuracy is not high.
Utility model content
In order to solve the problems of the technologies described above, the purpose of this utility model is: a kind of power lead inspection frock that improves detection speed and detection accuracy is provided.
The technical scheme that the utility model adopts is: power lead inspection frock, include power end, power light, short circuit pilot lamp, plug end, socket end, voltage reduction module, rectification module, Voltage stabilizing module and indicating module, described power end is connected with power light, in parallel with power light after described short circuit pilot lamp and plug end series connection, described socket end is connected to indicating module by voltage reduction module, rectification module, Voltage stabilizing module successively.
Further, described voltage reduction module is single phase poaer supply transformer.
Further, between described voltage reduction module and rectification module, be also connected with protective tube.
Further, described Voltage stabilizing module is 7805 circuit of three-terminal voltage-stabilizing integrated.
Further, described indicating module comprises luminotron and hummer, and described luminotron and hummer are connected in parallel.
Further, described luminotron is green LED.
Further, described power light is yellow incandescent lamp, and described short circuit pilot lamp is blue incandescent lamp.
Further, also include a shell, described power end, power light, short circuit pilot lamp, plug end, socket end and indicating module are all arranged on shell.
Further, described shell adopts acrylic board to make.
The beneficial effects of the utility model are: utilize the short circuit load of short circuit pilot lamp as power lead, can realize short circuit instruction and can eliminate again the impact of power lead short circuit on public power; Use short circuit pilot lamp and wattage transformer series connection access electric main, can not light short circuit pilot lamp when transformer is normally worked, frock only can be sent normal acousto-optic hint, by the qualification of sound and luminous dual mode prompting power lead; Not only improve the detection speed of power lead, also avoided completely operating mistake and the personal error in universal electric meter process in conventional power source line testing process, be conducive to be presented at the power lead flaw that is difficult for exposure under multimeter low-voltage.
Brief description of the drawings
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the utility model fundamental diagram;
Fig. 3 is the circuit theory diagrams of the utility model one specific embodiment;
Fig. 4 is shell front elevation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
With reference to Fig. 1, power lead inspection frock, include power end, power light, short circuit pilot lamp, plug end, socket end, voltage reduction module, rectification module, Voltage stabilizing module and indicating module, described power end is connected with power light, in parallel with power light after described short circuit pilot lamp and plug end series connection, described socket end is connected to indicating module by voltage reduction module, rectification module, Voltage stabilizing module successively.
Further, described voltage reduction module is single phase poaer supply transformer.
Further, between described voltage reduction module and rectification module, be also connected with protective tube.
Further, described Voltage stabilizing module is 7805 circuit of three-terminal voltage-stabilizing integrated.
Further, described indicating module comprises luminotron and hummer, and described luminotron and hummer are connected in parallel.
Further, described luminotron is green LED.
Further, described power light is yellow incandescent lamp, and described short circuit pilot lamp is blue incandescent lamp.
Further, also include a shell, described power end, power light, short circuit pilot lamp, plug end, socket end and indicating module are all arranged on shell.As shown in Figure 4.
Further, described shell adopts acrylic board to make.
As shown in Figure 2, principle of work of the present utility model is:, will be lit in the time of power lead generation phase line and zero line short circuit as short circuit load at the blue bulb of electric main input end series connection 10W/220V.At power lead output termination AC-DC translation circuit, utilize whether normally of low-voltage circuit instruction power lead, to guarantee user's safety.
Describe principle of work in detail below in conjunction with a specific embodiment of the present utility model.
With reference to Fig. 3, yellow indicator lamp L1 indicates as power supply, when luminous after power switch S closure.
Insert power lead in plug end, if the short circuit of phase line and zero line appears in power lead inside, blue indicator light L2 will light.If at this moment the power lead other end is inserted to socket end, due to Non voltage output, subsequent conditioning circuit is not worked, and luminotron and hummer all do not send indicator signal.
If there is not internal short-circuit and normally in power lead, electric main will output to transformer TG from socket end, after isolation, step-down, pass through rectification module U rectification and 7805 voltage stabilizings ,+5V DC voltage is applied to luminotron VD and hummer HA is upper, makes it to send acousto-optic indicator signal.
If power lead exists inner open circuit, it is upper that electric main can not be applied to transformer TG yet, and VD and HA can not send acousto-optic indicator signal yet.
Described hummer is the active piezoelectric buzzer of 5V, and ring when power lead is normal is not rung when open circuit, and R2 is used for regulating its working current.
When the utility model circuit is debugged, first determine that yellow power light L1, blue short circuit pilot lamp L2 and protective tube FU install, then access 220V electric main, the switch S that switches on power, yellow power light L1 should light.Otherwise should check power supply input circuit, switch S and yellow power light L1.
With pen meter of universal meter short-circuit plug end socket, the short circuit of analog power line, blue short circuit pilot lamp L2 should light.Otherwise should check short circuit pilot lamp and plug end socket.
Insert respectively plug end socket and socket end socket with normal power lead, green LED will be lighted, hummer HA answers ring, otherwise should check socket end socket, transformer TG, protective tube FU, current rectifying and wave filtering circuit U, three terminal regulator 7805 and indicating circuit.Regulate R1 can change the brightness of luminotron, regulate R2 can change the sound size of hummer.
Use the utility model when power lead is detected, first access 220V AC power, the switch that switches on power, treats that yellow power light lights.Again the plug end of power lead is inserted to plug end socket, blue short circuit pilot lamp should not be lighted, otherwise power lead because of internal short-circuit defective.Again the socket end of power lead is inserted to socket end socket, green luminotron should be lighted, and hummer is answered ring, otherwise power lead is because opening a way defective in inside.
More than that better enforcement of the present utility model is illustrated, but the utility model is created and is not limited to described embodiment, those of ordinary skill in the art can also make all equivalents or replacement under the prerequisite without prejudice to the utility model spirit, and the distortion that these are equal to or replacement are all included in the application's claim limited range.
Claims (9)
1. power lead inspection frock, it is characterized in that: include power end, power light, short circuit pilot lamp, plug end, socket end, voltage reduction module, rectification module, Voltage stabilizing module and indicating module, described power end is connected with power light, in parallel with power light after described short circuit pilot lamp and plug end series connection, described socket end is connected to indicating module by voltage reduction module, rectification module, Voltage stabilizing module successively.
2. power lead inspection frock according to claim 1, is characterized in that: described voltage reduction module is single phase poaer supply transformer.
3. power lead inspection frock according to claim 1, is characterized in that: between described voltage reduction module and rectification module, be also connected with protective tube.
4. power lead inspection frock according to claim 1, is characterized in that: described Voltage stabilizing module is 7805 circuit of three-terminal voltage-stabilizing integrated.
5. power lead inspection frock according to claim 1, is characterized in that: described indicating module comprises luminotron and hummer, and described luminotron and hummer are connected in parallel.
6. power lead inspection frock according to claim 5, is characterized in that: described luminotron is green LED.
7. power lead inspection frock according to claim 1, is characterized in that: described power light is yellow incandescent lamp, and described short circuit pilot lamp is blue incandescent lamp.
8. power lead inspection frock according to claim 1, is characterized in that: also include a shell, described power end, power light, short circuit pilot lamp, plug end, socket end and indicating module are all arranged on shell.
9. power lead inspection frock according to claim 8, is characterized in that: described shell adopts acrylic board to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006292.5U CN203688714U (en) | 2014-01-02 | 2014-01-02 | Power line inspection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006292.5U CN203688714U (en) | 2014-01-02 | 2014-01-02 | Power line inspection tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203688714U true CN203688714U (en) | 2014-07-02 |
Family
ID=51010599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420006292.5U Expired - Lifetime CN203688714U (en) | 2014-01-02 | 2014-01-02 | Power line inspection tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203688714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406440A (en) * | 2015-12-09 | 2016-03-16 | 宁波中荣声学科技有限公司 | Power supply load protection circuit |
-
2014
- 2014-01-02 CN CN201420006292.5U patent/CN203688714U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406440A (en) * | 2015-12-09 | 2016-03-16 | 宁波中荣声学科技有限公司 | Power supply load protection circuit |
| CN105406440B (en) * | 2015-12-09 | 2017-12-01 | 宁波中荣声学科技有限公司 | Power source loads protection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220701 Address after: 510000 third floor, building A2, No. 11, Kaiyuan Avenue, Science City, Guangzhou high tech Industrial Development Zone, Guangdong Province Patentee after: GUANGDONG DAYUAN OASIS FOOD SAFETY TECHNOLOGY Co.,Ltd. Address before: 510527 6th floor, building A1, No. 11, Kaiyuan Avenue, Science City, Guangzhou high tech Industrial Development Zone, Guangdong Province Patentee before: GUANGDONG DAYUAN FOOD SAFETY TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
|
| CX01 | Expiry of patent term |