CN207475926U - Anti-induced electrical indicator light - Google Patents
Anti-induced electrical indicator light Download PDFInfo
- Publication number
- CN207475926U CN207475926U CN201721020871.5U CN201721020871U CN207475926U CN 207475926 U CN207475926 U CN 207475926U CN 201721020871 U CN201721020871 U CN 201721020871U CN 207475926 U CN207475926 U CN 207475926U
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- China
- Prior art keywords
- indicator light
- resistance
- constant voltage
- series
- parallel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A kind of anti-induced electrical indicator light, can correctly distinguish induced electricity and operating voltage.In indicator light insulation crust, constant voltage elements, LED light tube, resistance are connected in series with, and are input terminal in this parallel resistance both ends extraction electrode then in this series loop both ends resistance in parallel.It is slightly modified on the basis of existing indicator light.Enable whether indicator light correct supervision equipment the states such as charges, runs, stopping, preventing erroneous judgement, maloperation.
Description
Technical field
The present utility model is related to a kind of anti-induction indicator light of equipment of industrial product application, can effectively prevent because
Induced electricity generates the phenomenon that accidentally bright.
Background technology
Indicator light is a kind of electrical equipment having many uses, can intuitively reflect whether equipment is charged, equipment whether
The states such as operation, stopping.Present document relates to be LED light that industrial equipment uses.With the development of science and technology in current work
In industry electrical equipment, LED light is because of its long lifespan, small power consumption, the advantages that being not likely to produce visual fatigue, substantially substitutes tradition
Osram lamp.
However LED light the shortcomings that also having itself, existing LED light be by LED light tube series resistance and
It is gone in capacitance connection to power supply, the voltage of very little can just make LED light shinny.Row are such as：220 volts of LED light exists
It will be bright under twenties volts of induced voltage.In actual production, it is bright because induced electricity occurs to miss to be frequently encountered LED light
Phenomenon.It is endangered it is clear that such as when the power distribution cabinet indicator light of power failure occurs accidentally bright because of induced electricity, and can judge into has electricity.
For another example：Indicator light shows motor operation, two states stopped, in the presence of induced electricity, it is possible to cause to equipment state
Erroneous judgement is generated, so that causing accident.
Invention content
In order to overcome existing LED light, because the phenomenon that accidentally bright occurs for induced electricity, the utility model provides a kind of anti-sense
Should electric indicator light, can correctly distinguish induced electricity and normal voltage, that is, when LED light input terminal has induced electricity, LED
Indicator light will not be bright, and when only LED light input terminal passes through operating voltage, LED light just can be bright.
Technical solution
In indicator light insulation crust, constant voltage elements, LED light tube, resistance are connected in series with, then in this series loop
Parallel connection one resistance in both ends is input terminal in this parallel resistance both ends extraction electrode.Its principle is：Indicator light input terminal exists
During induced voltage, parallel resistance attenuation is first passed through, the induced voltage after attenuation is insufficient to allow constant voltage elements to be connected, therefore LED is sent out
Light pipe does not have electric current to flow through and do not work.And during indicator light input terminal application operating voltage, operating voltage is led higher than constant voltage elements
Logical value (0.5-0.8 times of the turn-on voltage of constant voltage elements lamp rated voltage maximum value in accordance with the instructions selects), constant voltage elements are connected,
LED light tube has electric current to flow through, and LED light tube is bright, can achieve the purpose that distinguish induced electricity and normal voltage like this.
Advantageous effect
Indicator light is enable correctly to monitor the states such as the electrification, operation, stopping of electrical equipment, prevents erroneous judgement, maloperation.
Description of the drawings
Fig. 1 is the circuit diagram using zener diode.
Fig. 2 is the circuit diagram using varistor.
Fig. 3 is the diagrammatic cross-section of anti-induced electrical.
(LED) LED light tube in figure, (R1) current-limiting resistance, (R2) damping resistance, (ZD) are zener diode, and (RV) is pressed
Quick resistance, (ZD) constant voltage elements.
Specific embodiment
Fig. 3 is the diagrammatic cross-section of anti-induced electrical indicator light, and in indicator light insulation crust, constant voltage elements, LED shine
Pipe, resistance are connected in series with, then in this series loop both ends resistance in parallel, in this parallel resistance both ends extraction electrode
For input terminal.
Embodiment 1：Constant voltage elements are the circuit diagrams using zener diode in Fig. 1.
Embodiment 2：Constant voltage elements are the circuit diagrams using varistor in Fig. 2.
Claims (2)
1. a kind of anti-induced electrical indicator light, in indicator light insulation crust, constant voltage elements, LED light tube, resistance are connected in series with,
Then it is input terminal in this parallel resistance both ends extraction electrode in this series loop both ends resistance in parallel, feature
It is：Luminous tube one constant voltage elements of series connection.
2. anti-induced electrical indicator light according to claim 1, it is characterized in that：Constant voltage elements are zener diode and pressure-sensitive electricity
Resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721020871.5U CN207475926U (en) | 2017-08-16 | 2017-08-16 | Anti-induced electrical indicator light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721020871.5U CN207475926U (en) | 2017-08-16 | 2017-08-16 | Anti-induced electrical indicator light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207475926U true CN207475926U (en) | 2018-06-08 |
Family
ID=62256721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721020871.5U Expired - Fee Related CN207475926U (en) | 2017-08-16 | 2017-08-16 | Anti-induced electrical indicator light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207475926U (en) |
-
2017
- 2017-08-16 CN CN201721020871.5U patent/CN207475926U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180608 Termination date: 20200816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |