CN201845047U - Indicator for respectively displaying two different voltage classes on DC (direct current) circuit - Google Patents
Indicator for respectively displaying two different voltage classes on DC (direct current) circuit Download PDFInfo
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- CN201845047U CN201845047U CN2010205975221U CN201020597522U CN201845047U CN 201845047 U CN201845047 U CN 201845047U CN 2010205975221 U CN2010205975221 U CN 2010205975221U CN 201020597522 U CN201020597522 U CN 201020597522U CN 201845047 U CN201845047 U CN 201845047U
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- voltage
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- pilot lamp
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Abstract
The utility model discloses an indicator for respectively displaying two different voltage classes on a DC (direct current) circuit, which comprises three branches which are connected on a DC loop in parallel, wherein one branch comprises a circuit formed by a voltage-stabilizing diode D and a small relay JC, which are connected in series, and the voltage-stabilizing voltage of voltage-stabilizing diode is between the lower voltage and the high voltage of the DC loop; the other two branches respectively comprise indicator lights which are connected with the normally-closed point JC1 and the normally-open point JC2 of the relay in series through different current-limiting resistors, the indicator light LED1 (light-emitting diode) which is connected with the normally-closed point JC1 in series is a low-voltage indicator light, and the indicator light LED 2 which is connected with the normally-open point JC2 in series is a high-voltage indicator light. The indicator has reasonable structural design and is convenient to manufacture; since the voltage-stabilizing diode is adopted to control the relay in the same DC loop, the technical problem that two different classes of voltage need to be distinguishingly displayed in the same DC loop can be solved.
Description
Technical field the utility model belongs to DC circuit voltage indicator technical field, relates to a kind of indicator that shows two kinds of different electric pressures on the DC circuit respectively.
In the background technology DC circuit sometimes on same circuit, carry the voltage of different electric pressures at different time, when directly using pilot lamp to show, because the luminosity of pilot lamp generally is a linear change, be brightness along with the increase of voltage improves, brightness height when voltage is high, brightness was low when voltage was low.Can't provide tangible voltage indication, i.e. the difference of voltage height.
The summary of the invention the purpose of this utility model is to solve the technical matters that there are two kinds of different brackets voltage difficulties of difference demonstration in the same DC loop in prior art, provide a kind of indicator that shows two kinds of different electric pressures on the DC circuit respectively, to overcome the deficiencies in the prior art.
To achieve these goals, the utility model shows the indicator of two kinds of different electric pressures on the DC circuit respectively, so its main points are formed at the branch road that is connected in parallel on the DC loop by three, article one, by voltage of voltage regulation between DC loop low-voltage and high voltage voltage stabilizing diode D and the circuit of miniature relay JC series connection forms, it is a major loop of controlling other two branch roads; Two other is to be made up of the pilot lamp of different current-limiting resistance serial connection relay normally closed contact JC1 and normal opened contact JC2 respectively, the pilot lamp LED1 that wherein is connected in series relay normally closed contact JC1 is the low-voltage pilot lamp, and the pilot lamp LED2 of serial connection relay normally open contact JC2 is the high voltage pilot lamp.
The utility model reasonable in design, easy to make adopts the stabilivolt pilot relay in same DC loop, solved in same DC loop, and difference shows the technical matters of two kinds of different brackets voltages.
Appended drawings is the utility model circuit diagram.
The normal opened contact LED1 of the normally closed contact JC2 of D, stabilivolt JC, relay R 1, R2, current-limiting resistance JC1, relay, relay, low-voltage pilot lamp LED2, high voltage pilot lamp among the figure
What A, B represented among the embodiment figure is the positive and negative electrode of DC circuit circuit, with reference to the accompanying drawings, the utility model shows the indicator of two kinds of different electric pressures on the DC circuit respectively, form by three branch roads that are connected in parallel on the DC loop, article one, by voltage of voltage regulation between DC loop low-voltage and high voltage voltage stabilizing diode D and the circuit of miniature relay JC series connection forms, it is a major loop of controlling other two branch roads; Two other is to be made up of the pilot lamp of different current-limiting resistance serial connection relay normally closed contact JC1 and normal opened contact JC2 respectively, the pilot lamp LED1 that wherein is connected in series relay normally closed contact JC1 is the low-voltage pilot lamp, and the pilot lamp LED2 of serial connection relay normally open contact JC2 is the high voltage pilot lamp.
Principle of work of the present utility model is: during use, with the utility model indicator and insert in the DC loop, when sending into low-voltage in the DC loop, because its magnitude of voltage is lower than the voltage stabilizing value of stabilivolt D, stabilivolt D does not have breakdown current and flows through, and relay J C is failure to actuate, at this moment, the low pressure pilot lamp LED1 of serial connection relay normally closed contact JC1 is lighted in the display, and what send in the circuit is low-voltage; And this moment high voltage pilot lamp LED2 the loop, cut off by relay normally open contact JC2, be in closed condition.When high voltage is sent in the DC loop change, because its magnitude of voltage is higher than the voltage stabilizing value of stabilivolt D, there is reverse breakdown current to flow through among the stabilivolt D, at this moment, and relay J C action, its normally closed contact JC1 disconnects low-voltage indication loop, and low-voltage pilot lamp LED1 extinguishes; Simultaneously normal opened contact JC2 is connected, HT pilot LED2 is lighted, and what send in the circuit is high voltage.
Current-limiting resistance R1, the R2 of pilot lamp LED1, LED2 should look the height of display voltage in the circuit, choose different resistance values, and the selection of circuit relay electrical equipment JC should match with the reverse breakdown current of stabilivolt D.
Claims (1)
1. indicator that shows two kinds of different electric pressures on the DC circuit respectively, it is characterized in that forming by three branch roads that are connected in parallel on the DC loop, one by voltage of voltage regulation between DC loop low-voltage and high voltage voltage stabilizing diode D and the circuit of miniature relay JC series connection form; Two other is to be made up of the pilot lamp of different current-limiting resistance serial connection relay normally closed contact JC1 and normal opened contact JC2 respectively, the pilot lamp LED1 that wherein is connected in series relay normally closed contact JC1 is the low-voltage pilot lamp, and the pilot lamp LED2 of serial connection relay normally open contact JC2 is the high voltage pilot lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205975221U CN201845047U (en) | 2010-10-27 | 2010-10-27 | Indicator for respectively displaying two different voltage classes on DC (direct current) circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205975221U CN201845047U (en) | 2010-10-27 | 2010-10-27 | Indicator for respectively displaying two different voltage classes on DC (direct current) circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201845047U true CN201845047U (en) | 2011-05-25 |
Family
ID=44039934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205975221U Expired - Fee Related CN201845047U (en) | 2010-10-27 | 2010-10-27 | Indicator for respectively displaying two different voltage classes on DC (direct current) circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201845047U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167678A (en) * | 2017-05-08 | 2017-09-15 | 许继集团有限公司 | A kind of multifunctional analogue signal Acquisition Circuit |
| CN113950793A (en) * | 2019-07-04 | 2022-01-18 | 株式会社日立产机*** | Power conversion device |
-
2010
- 2010-10-27 CN CN2010205975221U patent/CN201845047U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167678A (en) * | 2017-05-08 | 2017-09-15 | 许继集团有限公司 | A kind of multifunctional analogue signal Acquisition Circuit |
| CN113950793A (en) * | 2019-07-04 | 2022-01-18 | 株式会社日立产机*** | Power conversion device |
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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: 20110525 Termination date: 20111027 |