CN102236041A - Voltage detection displaying device - Google Patents
Voltage detection displaying device Download PDFInfo
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- CN102236041A CN102236041A CN2010101624555A CN201010162455A CN102236041A CN 102236041 A CN102236041 A CN 102236041A CN 2010101624555 A CN2010101624555 A CN 2010101624555A CN 201010162455 A CN201010162455 A CN 201010162455A CN 102236041 A CN102236041 A CN 102236041A
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Abstract
The invention discloses a voltage detection displaying device. The voltage detection displaying device comprises a voltage division module, a voltage sensing module and a voltage displaying module, wherein the voltage division module is connected with a voltage sensing module and used for dividing the voltage of a circuit to be detected and inputting the processed voltage to the voltage sensing module, the voltage sensing module is connected with the voltage displaying module and used for performing isolated conversion on the voltage input by the voltage division module and inputting the voltage subjected to isolated conversion to the voltage displaying module, and the voltage displaying module is used for performing adaption processing on a voltage signal and the voltage signal subjected to the adaption processing displays the voltage value of the circuit to be detected. According to the invention, the voltage division module performs voltage division processing on the circuit to be detected and the voltage sensing module inputs the voltage subjected to the voltage division to the voltage displaying module after performing isolated conversion, so that a measurement circuit and a displaying circuit are separated electrically and potential safety hazards can be reduced; in addition, the voltage displaying module displays the voltage signal input by the voltage sensing module after performing the adaption processing, therefore, the accuracy of voltage detection is improved.
Description
Technical field
The present invention relates to the electric circuit inspection technical field, relate in particular to a kind of voltage detecting display device.
Background technology
Along with industrial products develop to the high-power direction, high-voltage detecting circuit has obtained using widely.Along with development of electronic technology, high-voltage detecting circuit also develops to the direction of miniaturization, high precision, high reliability.But at present domestic high pressure detects the problem that display circuit exists security and accuracy aspect.
Therefore, simple, safe, the accurate high-voltage detecting circuit of research, and be equipped with corresponding display circuit, and can improve the work efficiency under the high-pressure work environment, become problem demanding prompt solution.
In the scheme of prior art, the method that high direct voltage voltage detects is to be together in series with resistance to carry out dividing potential drop and detect, and reduces input voltage with the electric resistance partial pressure mode, connects display gauge head and measure and show on divider resistance.
But high pressure of the prior art detects display circuit exists following defective: high direct voltage and measurement display circuit can not be realized electrical isolation, have potential safety hazard.When measuring high voltage, the situation that is not linear can appear in the low-voltage section, and measuring accuracy is relatively poor.
Summary of the invention
The invention provides a kind of voltage detecting display device, detection and demonstration high-tension circuit magnitude of voltage to realize safety and precise improve the efficient that high-tension circuit detects.
The embodiment of the invention provides a kind of voltage detecting display device, and described device comprises: division module, voltage sensor module and voltage display module;
Described division module is connected with the voltage sensor module, is used for the voltage of circuit to be detected is carried out importing described voltage sensor module after the voltage division processing;
Described voltage sensor module is connected with described voltage display module, is used for voltage to division module input and carries out input voltage display module behind the isolated variable;
Described voltage display module, the current signal that is used to receive described voltage sensor module input carries out adaptation processing, demonstrates the magnitude of voltage of circuit to be detected by the voltage signal after the adaptation processing.
Described division module comprises plural at least resistance.
Described division module comprises slide rheostat.
Described voltage sensor module is connected with stabilized voltage supply, provides power supply by described stabilized voltage supply for it.
Described voltage display module comprises: adaptive resistance and voltage Displaying Meter, and described adaptive resistance is in parallel with the voltage Displaying Meter;
Described adaptive resistance is used for the current signal of described voltage sensor module input is carried out adaptation processing;
Described voltage Displaying Meter is used to receive the voltage signal after the adaptation processing, demonstrates the magnitude of voltage of circuit to be detected by the voltage signal after the adaptation processing.
Described voltage sensor module is connected with part resistance in the division module.
Described voltage sensor module is the mesolow voltage sensor.
The voltage detecting display device that the embodiment of the invention provides, treat testing circuit by division module and carry out voltage division processing, by the voltage sensor module voltage after partial is carried out input voltage display module behind the isolated variable, make that thus metering circuit and display circuit can electrical isolation, reduced potential safety hazard, in addition, display module carries out showing after the adaptation processing to the current signal of voltage sensor module input again, can improve the accuracy of detection.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the voltage detecting display device that Fig. 1 provides for one embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope of protection of the invention.
The structural representation of the voltage detecting display device that provides for one embodiment of the invention referring to Fig. 1, the voltage detecting display device of present embodiment are used to realize that high pressure detects and shows, realize safety, detect high-tension circuit simply, accurately.
As shown in Figure 1, this voltage detecting display device can comprise: division module 1, voltage sensor module 2 and voltage display module 3.
Voltage display module 3, the current signal that is used to receive 2 inputs of voltage sensor module carries out adaptation processing, demonstrates the magnitude of voltage of circuit to be detected by the voltage signal after the adaptation processing.
Wherein, division module 1 can be made of a plurality of resistance, and DC high-voltage power supply to be detected is inserted at the two ends of division module 1.Voltage sensor module 2 can be a sensor, and as shown in Figure 1, the part resistance in the division module 1 is inserted at the two ends of sensor TV, and by the dividing potential drop of a plurality of resistance, the access voltage of input pickup TV is reduced to lower voltage.
Owing to reduced the sampling input voltage of voltage sensor module 2, so voltage sensor module 2 can adopt the voltage sensor of mesolow, reduced and carried out the demand that high pressure detects.In addition, division module 1 also can adopt the higher slide rheostat of security to carry out voltage division processing.
Above-mentioned voltage detecting display device adopts the mode of electric resistance partial pressure, greatly reduce the sampling input voltage, Figure 1 shows that example, division module 1 has adopted 8 resistance, the two ends of sensor TV are connected with wherein two resistance, make that thus the sampled signal of sensor TV is 1/4th of a voltage to be detected.Thus, just can adopt the mesolow voltage sensor to carry out the isolation and the conversion of signal, for voltage display module 3 provides shows signal.
As shown in Figure 1, voltage display module 3 comprises an adaptive resistance R and a voltage Displaying Meter PV, and adaptive resistance R is in parallel with voltage Displaying Meter PV.Adaptive resistance R is used for the current signal of voltage sensor module 2 inputs is carried out adaptation processing; This adaptive resistance R is the suitable resistance of selecting according to the no-load voltage ratio relation, and the current signal that voltage sensor module 2 is exported carries out adaptation processing, so that generate the voltage identical with magnitude of voltage to be detected at the two ends of voltage Displaying Meter PV.
Voltage Displaying Meter PV is used to receive the voltage signal after the adaptation processing, demonstrates the magnitude of voltage of circuit to be detected by the voltage signal after the adaptation processing.Referring to Fig. 1, that voltage sensor module 2 is exported is current signal I, therefore the voltage at adaptive resistance R two ends is about U=I * R, therefore, select the adaptive resistance R of suitable resistance, just can make the voltage at adaptive resistance R two ends keep identical, promptly make that by adaptive resistance R the voltage at voltage Displaying Meter PV two ends is identical with voltage to be detected with voltage to be detected.
When being 5kV as voltage to be detected, carried out dividing potential drop by division module 1, the voltage of input voltage sensing module 2 is voltage after the dividing potential drop, therefore, need utilize adaptive resistance R to carry out adaptation processing, making voltage Displaying Meter PV can the display voltage value be 5kV, promptly by adaptive resistance R the magnitude of voltage of voltage Displaying Meter PV demonstration and the magnitude of voltage of circuit to be detected is consistent.The resistance value of this adaptive resistance R can be according to the intrinsic standoff ratio of division module 1, and the no-load voltage ratio of the input voltage value of voltage sensor module 2 and output current value relation calculates.
The power supply of voltage sensor module 2 is provided by one group of stabilized voltage supply, optionally, Figure 1 shows that example, can adopt two stabilized voltage supply 1YW and 2YW series connection to provide power supply for voltage sensor module 2.
By above-mentioned voltage detecting display device, the high pressure that just can realize high security, high reliability detects, with voltage detecting display device shown in Figure 1 is that example describes, the division module 1 of this device is made of 8 resistance, voltage sensor module 2 is connected with wherein two resistance, and sampled signal is about 1/4th of voltage to be detected thus.When former input voltage is 5kV, the about 1250V of sampling input voltage, again by behind the isolated variable of voltage sensor module 2, the current signal of output smaller value is given voltage display module 3, voltage display module 3 is according to the signal of voltage sensor module 2 inputs, carry out adaptation processing by adaptive resistance R, make the magnitude of voltage of voltage Displaying Meter PV output also be 5kV.
This voltage detecting display device, circuit is simple, and is with low cost, safe, satisfied the needs that high pressure detects, and by the divider resistance of adjustment division module and the resistance of adaptive resistance, can satisfy the demand of the voltage detecting of different accuracy grade.Because adaptive resistance can carry out adaptation processing to the voltage of input voltage Displaying Meter, therefore, by the resistance of the adaptive resistance of accurate Calculation, and this adaptive resistance of reasonable disposition, just can improve the accuracy of voltage detecting.
The voltage check device that the embodiment of the invention provides, treat testing circuit by division module and carry out voltage division processing, by the voltage sensor module voltage after partial is carried out input voltage display module behind the isolated variable, make that thus metering circuit and display circuit can electrical isolation, reduced potential safety hazard, in addition, display module carries out showing after the adaptation processing to the current signal of voltage sensor module input again, can improve the accuracy of detection.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a voltage detecting display device is characterized in that, described device comprises: division module, voltage sensor module and voltage display module;
Described division module is connected with the voltage sensor module, is used for the voltage of circuit to be detected is carried out importing described voltage sensor module after the voltage division processing;
Described voltage sensor module is connected with described voltage display module, is used for voltage to division module input and carries out input voltage display module behind the isolated variable;
Described voltage display module, the current signal that is used to receive described voltage sensor module input carries out adaptation processing, demonstrates the magnitude of voltage of circuit to be detected by the voltage signal after the adaptation processing.
2. voltage detecting display device according to claim 1 is characterized in that, described division module comprises plural at least resistance.
3. voltage detecting display device according to claim 1 is characterized in that described division module comprises slide rheostat.
4. voltage detecting display device according to claim 1 is characterized in that, described voltage sensor module is connected with stabilized voltage supply, provides power supply by described stabilized voltage supply for it.
5. voltage detecting display device according to claim 1 is characterized in that, described voltage display module comprises: adaptive resistance and voltage Displaying Meter, and described adaptive resistance is in parallel with the voltage Displaying Meter;
Described adaptive resistance is used for the current signal of described voltage sensor module input is carried out adaptation processing;
Described voltage Displaying Meter is used to receive the voltage signal after the adaptation processing, demonstrates the magnitude of voltage of circuit to be detected by the voltage signal after the adaptation processing.
6. voltage detecting display device according to claim 1 is characterized in that, described voltage sensor module is connected with part resistance in the division module.
7. voltage detecting display device according to claim 1 is characterized in that, described voltage sensor module is the mesolow voltage sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010162455 CN102236041B (en) | 2010-04-29 | 2010-04-29 | Voltage detection displaying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010162455 CN102236041B (en) | 2010-04-29 | 2010-04-29 | Voltage detection displaying device |
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| CN102236041A true CN102236041A (en) | 2011-11-09 |
| CN102236041B CN102236041B (en) | 2013-05-08 |
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| CN 201010162455 Active CN102236041B (en) | 2010-04-29 | 2010-04-29 | Voltage detection displaying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470876A (en) * | 2019-09-19 | 2019-11-19 | 散裂中子源科学中心 | A kind of the high_voltage isolation detection circuit and detection method of neutral earthing high-pressure system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200989917Y (en) * | 2006-11-28 | 2007-12-12 | 李彩珍 | Voltage sensor |
| CN201335883Y (en) * | 2009-01-21 | 2009-10-28 | 永济新时速电机电器有限责任公司 | Voltage detection circuit module |
| CN101644727A (en) * | 2008-08-07 | 2010-02-10 | 厦门安达兴电气有限公司 | High-voltage detector |
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2010
- 2010-04-29 CN CN 201010162455 patent/CN102236041B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200989917Y (en) * | 2006-11-28 | 2007-12-12 | 李彩珍 | Voltage sensor |
| CN101644727A (en) * | 2008-08-07 | 2010-02-10 | 厦门安达兴电气有限公司 | High-voltage detector |
| CN201335883Y (en) * | 2009-01-21 | 2009-10-28 | 永济新时速电机电器有限责任公司 | Voltage detection circuit module |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470876A (en) * | 2019-09-19 | 2019-11-19 | 散裂中子源科学中心 | A kind of the high_voltage isolation detection circuit and detection method of neutral earthing high-pressure system |
| CN110470876B (en) * | 2019-09-19 | 2021-12-24 | 散裂中子源科学中心 | High-voltage isolation detection circuit and detection method of midpoint grounding high-voltage system |
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| CN102236041B (en) | 2013-05-08 |
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Address after: 044502 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044502 No. 18 motor street, Shanxi, Yongji Patentee before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |