CN202748448U - Detection device of circuit loop - Google Patents
Detection device of circuit loop Download PDFInfo
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- CN202748448U CN202748448U CN 201220389855 CN201220389855U CN202748448U CN 202748448 U CN202748448 U CN 202748448U CN 201220389855 CN201220389855 CN 201220389855 CN 201220389855 U CN201220389855 U CN 201220389855U CN 202748448 U CN202748448 U CN 202748448U
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- 238000001514 detection method Methods 0.000 title abstract description 17
- 238000004088 simulation Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000931705 Cicada Species 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
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Abstract
The utility model discloses a detection device of a circuit loop. The detection device comprises a power supply, an analog loudspeaker and a pointer-type ampere meter, wherein the power supply is used for supplying power for the analog loudspeaker; one end of the analog loudspeaker is connected with a first external terminal, the other end of the analog loudspeaker is sequentially connected with the power supply and a second external terminal in series, and the analog loudspeaker is used for prompting that a secondary loop of a to-be-detected electric device is a conductive closed loop; the pointer-type ampere meter comprises a third external terminal and a fourth external terminal and is used for indicating whether a current transformer which is connected with the secondary loop is in correct connection or not through the swing of a pointer of a meter head; and the power supply, the analog loudspeaker and the pointer-type ampere meter are arranged in one shell. According to the detection device disclosed by the utility model, the problem of bad generality of a measuring device of the secondary loop of an electric device in related technology is solved, the use of a user is convenient, and the usability of the detection device is increased.
Description
Technical field
The utility model relates to field of electronic circuitry, relates in particular to a kind of pick-up unit of circuit loop.
Background technology
The power failure of routine work all needs the measuring apparatus secondary circuit is carried out Site Detection in checking, measures the direct current resistance of current transformer, Secondary Circuit of Potential Transformer and secondary wiring tie point, in order to differentiate the correctness of measuring apparatus secondary circuit.
At present, the measuring equipment of measuring apparatus secondary circuit is normally used to be homemade light instrument, is commonly called as " to the line toy trumpet ", wherein, box body for piece together temporarily, volume is larger, uses, carries inconvenience.And, need again welding during battery altering, judge by rule of thumb only whether the electric weight of battery is sufficient.
As seen, in correlation technique, the measuring equipment versatility of electrical equipment secondary circuit is poor, i.e. unstable, the replacing inconvenience of cell voltage, and the tester volume is large, is carried into work on the spot inconvenience.
The utility model content
Fundamental purpose of the present utility model provides a kind of pick-up unit of circuit loop, to solve the poor problem of measuring equipment versatility of electrical equipment secondary circuit in the correlation technique.
According to an aspect of the present utility model, a kind of pick-up unit of circuit loop is provided, comprising: power supply is used to the analog speakers power supply; Analog speakers, the one end connects the first external terminal, and the other end is connected successively with power supply and the second external terminal, and the secondary circuit that is used for by auditory tone cues electrical equipment to be measured is the closed-loop path of conducting; And the pointer type reometer, comprise all round connecting terminal of the 3rd external terminal and the, be used for the current transformer that the swing indication by meter pointer is connected with this secondary circuit and whether connect correctly; Wherein, power supply, analog speakers and pointer type reometer are arranged in the housing.
Preferably, above-mentioned power supply is dry cell batteries.
Preferably, above-mentioned dry cell batteries is the rechargeable cell group.
Preferably, above-mentioned detection device also comprises: charging inlet, be connected to the rechargeable cell group, and be used for by external power supply the rechargeable cell group being charged.
Preferably, above-mentioned detection device also comprises: line under-voltage prompting pilot lamp, be connected in parallel to power supply, and the electric weight that is used to indicate power supply has been lower than predetermined threshold.
Preferably, above-mentioned line under-voltage prompting pilot lamp is light emitting diode.
Preferably, above-mentioned detection device also comprises the switch of a power supply.
Preferably, above-mentioned detection device also comprises a Power supply pilot lamp, and being used to indicate power supply current is being that pick-up unit is powered.
Preferably, above-mentioned the first external terminal, the second external terminal, the 3rd external terminal and all round connecting terminal be provided with the protection box.
Preferably, above-mentioned analog speakers is the simulation loudspeaker.
Pass through the utility model, employing is arranged on a mode in the pick-up unit with power supply, analog speakers and pointer type reometer, solved the poor problem of measuring equipment versatility of electrical equipment secondary circuit in the correlation technique, convenient for users, improved the ease for use of proving installation.
Description of drawings
Figure of description is used to provide further understanding of the present utility model, consists of the application's a part, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structured flowchart according to the pick-up unit of the circuit loop of the utility model embodiment;
Fig. 2 is the structured flowchart according to the pick-up unit of the circuit loop of the utility model preferred embodiment;
Fig. 3 is the structural representation according to the pick-up unit of the circuit loop of another preferred embodiment of the utility model;
Fig. 4 is the panel synoptic diagram according to the circuit loop tester of the utility model preferred embodiment.
Embodiment
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
According to the utility model embodiment, provide a kind of pick-up unit of circuit loop.Fig. 1 is the structured flowchart according to the pick-up unit of the circuit loop of the utility model embodiment, and as shown in Figure 1, this pick-up unit 10 comprises: power supply 12 is used to analog speakers 14 power supplies; Analog speakers 14, one end connect the first external terminal 1, and the other end is connected successively with power supply 12 and the second external terminal 2, and the secondary circuit that is used for by auditory tone cues electrical equipment to be measured is the closed-loop path of conducting; And pointer type reometer 16, comprise all round connecting terminal 4 of the 3rd external terminal 3 and the, be used for whether connecting correctly by the swing indicator current mutual inductor of meter pointer; Wherein, power supply 12, analog speakers 14 and pointer type reometer 16 are arranged in the housing.
Pass through the utility model, employing is arranged on a mode in the pick-up unit with power supply 12, analog speakers 14 and pointer type reometer 16, solved the poor problem of measuring equipment versatility of electrical equipment secondary circuit in the correlation technique, convenient for users, improved the ease for use of proving installation.
In implementation process, when using the break-make of this pick-up unit detecting electric equipment secondary circuit, needs at first are connected serially to this pick-up unit in the electrical equipment secondary circuit to be measured by external terminal 1 and the external terminal 2 of analog speakers 14.If analog speakers 14 is sounding not, then should there be element to open circuit in the secondary circuit, if analog speakers 14 sounding, then element connects normally in the secondary circuit, has formed the closed-loop path.
Because the installation of electric energy meter is in power down mode, often easy wrong is from the wire of current transformer, for example, circuit does not connect, current transformer advances/and outlet connects instead, the separate wrong of current transformer line etc., whether this pick-up unit can detect connection box of electric energy meter under power down mode correct, namely after the secondary circuit of electrical equipment to be measured powers on, with the external terminal 3 of pointer type reometer 16,4 both sides of touching these current transformers, the yawing moment of the meter pointer by observing pointer type reometer 16 judges whether current transformer connects correctly.
In implementation process, also can replace pointer type reometer 16 with the pointer type multimeter.
For example, above-mentioned power supply 12 can be dry cell batteries.In implementation process, dry cell batteries also can be the rechargeable cell group.Above-mentioned detection device can also comprise: charging inlet, be connected to the rechargeable cell group, and be used for by external power supply the rechargeable cell group being charged.
Fig. 2 is the structured flowchart according to the pick-up unit of the circuit loop of the utility model preferred embodiment, as shown in Figure 2, above-mentioned detection device 10 also comprises: line under-voltage prompting pilot lamp 20, be connected in parallel to power supply 12, and the electric weight that is used to indicate power supply 12 has been lower than predetermined threshold.For example, line under-voltage prompting pilot lamp 20 can be light emitting diode.At this moment, if power supply 12 is the rechargeable cell group, the charging inlet that then can provide by pick-up unit utilizes external power supply to charge.
Fig. 3 is the structural representation according to the pick-up unit of the circuit loop of another preferred embodiment of the utility model, and as shown in Figure 3, above-mentioned detection device 10 also comprises the switch 30 of a power supply.In addition, this pick-up unit can also comprise a Power supply pilot lamp 32, and being used to indicate power supply 12 current is being the pick-up unit power supply.
Preferably, above-mentioned the first external terminal 1, the second external terminal 2, the 3rd external terminal 3 and all round connecting terminal 4 be provided with the protection box.
Present embodiment utilizes analog speakers 14 and pointer type reometer 16 in the process of detecting electric equipment secondary circuit, point out measurement result on image, sense organ ground, has improved the operability of pick-up unit.
Need to prove, in implementation process, said elements can be arranged in the housing, terminal, display dial, pilot lamp, charging inlet and the switch etc. relevant with test can be arranged on the outside surface (for example, on the panel) of housing.
Be elaborated below in conjunction with the implementation procedure of preferred embodiments and drawings to above-described embodiment.
Dirigibility and functional characteristic for the measurement mechanism that improves the electrical equipment secondary circuit, present embodiment provides a kind of testing tool, can be with instrument moulding, standardization, standardization, simultaneously, the aesthetic measure of proving installation profile and the comfort level of use also increase substantially.
The circuit loop tester of present embodiment comprises: power module, loop sounding module, supply voltage is under-voltage detection indicating circuit module, pointer type reometer module and peripheral wiring splicing ear.Below each module is elaborated.
Power module is rechargeable dry cell batteries, and is furnished with corresponding charging equipment; The major function device of loop sounding module is one piece of high-power simulation loudspeaker; Detection indicating circuit module that supply voltage is under-voltage is comprised of voltage sample functional circuit, signal analysis and processing circuit and indication output circuit, wherein, the link position of detection indicating circuit module that supply voltage is under-voltage is for being attempted by the power module two ends, and it is high-impedance state, and power consumption is ignored; Pointer type reometer module is small-range pointer type reometer gauge outfit.
Need to prove that the microphone device in the loop sounding module of this instrument can use high-power simulation loudspeaker, can whether be serially connected with mutual inductor by the size identification measuring circuit of speaker sound like this, and the district office connects the difference of mutual inductor ratio indirectly.
Preferably, the indication output circuit in the under-voltage detection indicating circuit of the supply voltage module comprises a light emitting diode.Behind voltage sample functional circuit, signal analysis and processing circuit, determine that supply voltage has been lower than a certain threshold value, then this light emitting diode is lighted, and has been in under-voltage condition with the indication supply voltage.If common batteries then need be changed; If be rechargeable battery, a charging inlet can be provided, by external power supply rechargeable battery is charged, like this, can avoid repeatedly changing the unnecessary trouble that battery brings, also effectively saved use cost simultaneously.
Preferably, peripheral wiring splicing ear interface type is universal interface.
As seen, the utility model embodiment provides a kind of simple, practical, the pick-up unit that can realize the electrical equipment secondary circuit of the connection box of electric energy meter bug check under the power down mode, convenient use, applied widely, easy to carry, and device battery used instead be rechargeable battery, and is furnished with the under-voltage deixis that supporting charger and equipment carry, more hommization needn't be changed battery so continually, has saved cost.
Fig. 4 is the panel synoptic diagram according to the circuit loop tester of the utility model preferred embodiment; as shown in Figure 4, circuit loop tester apparatus subject is provided with: charging inlet a, reometer gauge outfit b, power switch c, power light d, under-voltage pilot lamp e, survey break-make connection terminal f, survey connect connection terminal g and wiring terminal protection box h.
In implementation process, survey break-make connection terminal f and be the first external terminal 1 that links to each other with analog speakers 14 and the second external terminal 2 that links to each other with power supply 12, survey connection connection terminal g is all round connecting terminal 4 of the 3rd external terminal 3 that links to each other with pointer type reometer 16 and the.
As seen, the circuit loop tester that present embodiment provides is simple in structure, but the wide accommodation practical function is more comprehensive, and, consider from operational point of view, can give the execute-in-place person use, carry and measure and bring certain convenience, indirectly improved field personnel's work incentive and corresponding work efficiency.
And the utility model embodiment technical scheme can be brought following beneficial effect:
(1) self-made tool with simple coarse has been made into the moulding testing tool.
(2) measuring ability is integrated in the testing apparatus, is convenient to carrying out of work on the spot, alleviated staff's burden.
(3) increase the low-voltage prompt facility of power supply, avoided just finding the situation of tester because not having electricity not use behind the scene, shifted to an earlier date pre-cicada risk, improved work efficiency.
(4) increased a power switch, can prevent from like this carrying, putting that the p-wire short circuit causes electric leakage in the process.
(5) connected mode of p-wire changes to plug from welding, has improved the stability of test, has also prolonged the serviceable life of p-wire simultaneously.
In sum, by the utility model embodiment, employing is arranged on a mode in the pick-up unit with power supply, analog speakers and pointer type reometer, provide convenience to work on the spot, consider from the angle of rig-site utilization, can increase work efficiency, consider from the marketable value angle, in manufacturing and the use field of electrical equipment, the prospect of applying is also comparatively extensive.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present utility model or each step can realize with general calculation element, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the memory storage and be carried out by calculation element, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the utility model is not restricted to any specific hardware and software combination.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. the pick-up unit of a circuit loop is characterized in that, comprising:
Power supply is used to the analog speakers power supply;
Described analog speakers, the one end connects the first external terminal, and the other end is connected successively with described power supply and the second external terminal, and the secondary circuit that is used for by auditory tone cues electrical equipment to be measured is the closed-loop path of conducting; And
Whether the pointer type reometer comprises all round connecting terminal of the 3rd external terminal and the, be used for the current transformer that the swing indication by meter pointer is connected with described secondary circuit and connect correctly;
Wherein, described power supply, described analog speakers and described pointer type reometer are arranged in the housing.
2. pick-up unit according to claim 1 is characterized in that, described power supply is dry cell batteries.
3. pick-up unit according to claim 2 is characterized in that, described dry cell batteries is the rechargeable cell group.
4. pick-up unit according to claim 3 is characterized in that, described pick-up unit also comprises:
Charging inlet is connected to described rechargeable cell group, is used for by external power supply described rechargeable cell group being charged.
5. pick-up unit according to claim 1 is characterized in that, described pick-up unit also comprises:
Line under-voltage prompting pilot lamp is connected in parallel to described power supply, and the electric weight that is used to indicate described power supply has been lower than predetermined threshold.
6. pick-up unit according to claim 5 is characterized in that, described line under-voltage prompting pilot lamp is light emitting diode.
7. pick-up unit according to claim 1 is characterized in that, described pick-up unit also comprises the switch of a described power supply.
8. pick-up unit according to claim 1 is characterized in that, described pick-up unit also comprises a Power supply pilot lamp, and being used to indicate described power supply current is being described pick-up unit power supply.
9. each described pick-up unit in 8 according to claim 1 is characterized in that described the first external terminal, described the second external terminal, described the 3rd external terminal and described all round connecting terminal are provided with the protection box.
10. pick-up unit according to claim 1 is characterized in that, described analog speakers is the simulation loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389855 CN202748448U (en) | 2012-08-07 | 2012-08-07 | Detection device of circuit loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389855 CN202748448U (en) | 2012-08-07 | 2012-08-07 | Detection device of circuit loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202748448U true CN202748448U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220389855 Expired - Lifetime CN202748448U (en) | 2012-08-07 | 2012-08-07 | Detection device of circuit loop |
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| CN (1) | CN202748448U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459446A (en) * | 2014-12-19 | 2015-03-25 | 卡尔迈耶（中国）有限公司 | Air-jet electric cabinet detecting device |
| CN104898016A (en) * | 2015-06-26 | 2015-09-09 | 国家电网公司 | Device for checking secondary circuit and polarity of current transformer |
| CN108362932A (en) * | 2017-09-08 | 2018-08-03 | 广州供电局有限公司 | Electric energy meter battery undervoltage detection device |
-
2012
- 2012-08-07 CN CN 201220389855 patent/CN202748448U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459446A (en) * | 2014-12-19 | 2015-03-25 | 卡尔迈耶（中国）有限公司 | Air-jet electric cabinet detecting device |
| CN104898016A (en) * | 2015-06-26 | 2015-09-09 | 国家电网公司 | Device for checking secondary circuit and polarity of current transformer |
| CN108362932A (en) * | 2017-09-08 | 2018-08-03 | 广州供电局有限公司 | Electric energy meter battery undervoltage detection device |
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Granted publication date: 20130220 |
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