CN200993316Y - Prewarning lithium cell miner's lamp - Google Patents
Prewarning lithium cell miner's lamp Download PDFInfo
- Publication number
- CN200993316Y CN200993316Y CN 200620158240 CN200620158240U CN200993316Y CN 200993316 Y CN200993316 Y CN 200993316Y CN 200620158240 CN200620158240 CN 200620158240 CN 200620158240 U CN200620158240 U CN 200620158240U CN 200993316 Y CN200993316 Y CN 200993316Y
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- Prior art keywords
- voltage
- early warning
- lithium battery
- electronic switch
- monitoring comparator
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Abstract
A miner's lamp in lithium cell and with a pre-warning function is provided, which comprises a undervoltage monitoring comparator for monitoring the output voltage of the lithium cell and sending out Off signal for an illumination circuit; an electronic switch that is connected in the circuit of the lithium cell and the illumination circuit, whose control end is connected with the output end of the undervoltage monitoring comparator; a pre-warning voltage monitoring comparator for monitoring the output voltage of the lithium cell and sending out pre-warning signal; a low-frequency oscillator, whose input end is connected with the output end of the pre-warning voltage monitoring comparator, and its output end is connected with the control end of the electronic switch. The advantages with the utility models are that before the undervoltage monitoring comparator outputs cut-off signal for the illumination circuit, the pre-warning voltage monitoring comparator starts the low-frequency oscillator and controls the electronic switch to turn on/off intermittently, so that the illumination lamp will flash and give signal of too-low voltage in the lithium cell, and prompt the user to charge timely, this avoids sudden light-out during operation.
Description
Technical field
The utility model relates to a kind of mine lamp assembly, is a kind of lithium battery mine lamp with warning function.
Background technology
Existing lithium battery mine lamp mainly contains: a under-voltage monitoring comparator: be used to monitor the output voltage values of lithium battery, send the shutoff signal of lighting lamp circuit when this magnitude of voltage is lower than predetermined cut-out magnitude of voltage; One electronic switch: be connected in the loop of lithium battery and illuminating lamp, be controlled by described under-voltage monitoring comparator output terminal, be used for cutting off or connecting the lighting lamp power loop.Its shortcoming is: lighting lamp circuit is cut off when the magnitude of voltage of lithium battery is lower than predetermined cut-out magnitude of voltage, and illuminating lamp extinguishes suddenly under the situation that does not have indication, causes inconvenience to work.
Summary of the invention
The purpose of this utility model just provides a kind of lithium battery mine lamp that early warning is arranged, because the magnitude of voltage of lithium battery when being lower than predetermined value, illuminating lamp promptly extinguishes under the situation that not have indication, causes the problem of inconvenience to work to solve that prior art exists.
The technical solution of the utility model is: comprising:
One under-voltage monitoring comparator: be used to monitor the output voltage values of lithium battery, when this output voltage values is lower than predetermined cut-out magnitude of voltage, the shutoff signal of this is under-voltage monitoring comparator sends lighting lamp circuit;
One electronic switch: be connected in the loop of lithium battery and illuminating lamp, its control end is connected with described under-voltage monitoring comparator output terminal, it is characterized in that, also comprises:
One early warning voltage monitoring comparator: be used to monitor the output voltage values of lithium battery, send early warning signal when this output voltage values is lower than predetermined early warning magnitude of voltage, this early warning magnitude of voltage is higher than described cut-out magnitude of voltage certain amplitude;
One low-frequency oscillator: its input is connected with the output of described early warning voltage monitoring comparator, and the output of this low-frequency oscillator is connected with the control end of described electronic switch.
Described electronic switch adopts field-effect transistor, and its grid is as described control end, and its source electrode and drain electrode are connected the electric power loop of illuminating lamp.
Described illuminating lamp adopts bulb or light emitting diode.
The utility model has the advantages that: before under-voltage monitoring comparator output illuminating lamp shutoff signal, at first start low-frequency oscillator and control intermittently break-make of electronic switch by early warning voltage monitoring comparator, make the illuminating lamp flicker, send the low excessively early warning signal of lithium battery voltage, remind the user in time to charge, avoided the trouble that illuminating lamp extinguishes suddenly in the work.
Description of drawings
Fig. 1 is the circuit block diagram of an embodiment of the present utility model.
The specific embodiment
Referring to Fig. 1, this embodiment of the utility model comprises:
One under-voltage monitoring comparator 2: be used to monitor the output voltage values of lithium battery S, when this magnitude of voltage is lower than predetermined cut-out magnitude of voltage, send the shutoff signal of extinguishing illuminating lamp, cut off the electric power loop of illuminating lamp by electronic switch 4 to electronic switch 4.
One electronic switch 4: be connected in the loop of lithium battery S and illuminating lamp 5, be controlled by the output of described under-voltage monitoring comparator 2, be used for cutting off or connecting illuminating lamp 4 electric power loops.
One early warning voltage monitoring comparator 1: be used to monitor the output voltage values of lithium battery S, when this magnitude of voltage is higher than cut-out magnitude of voltage certain amplitude (being the early warning magnitude of voltage), send early warning signal.
One low-frequency oscillator 3: starting oscillation behind the early warning signal that reception early warning voltage monitoring comparator 1 sends, export an oscillating signal to the control end of described electronic switch 4, make intermittently break-make of electronic switch 4, illuminating lamp 5 flickers are as being the early warning signal of lithium cell charging.
Electronic switch 4 of the present utility model can adopt field-effect transistor, and its grid is as described control end, and its source electrode and drain electrode are connected the electric power loop of illuminating lamp 5.
Described illuminating lamp 5 adopts bulb, light emitting diode or other electric light source.
Described two comparators 1 and 2 can adopt operational amplifier or other available circuit; The frequency of low-frequency oscillator 3 can make naked eyes find out that illuminating lamp 5 gets final product in flicker.2 of a in the accompanying drawing, b are the links of when charging and charge power supply, and K switch is used for the circuit of break-make illuminating lamp 5.
Operation principle of the present utility model is: when the voltage of lithium battery S is reduced to the early warning magnitude of voltage, at first start low-frequency oscillator 3 and control intermittently break-make of electronic switch 4 by early warning voltage monitoring comparator 1, make illuminating lamp 5 flickers, send the low excessively early warning signal of lithium battery voltage.Along with the voltage continuation reduction of lithium battery S, when being lower than the cut-out magnitude of voltage, under-voltage monitoring comparator 2 output shutoff signals, and the electric power loop of control electronic switch 4 cut-out illuminating lamps 5, illuminating lamp 5 extinguishes.
Claims (3)
1, a kind of lithium battery mine lamp that early warning is arranged comprises:
One under-voltage monitoring comparator: be used to monitor the output voltage values of lithium battery, when this output voltage values is lower than predetermined cut-out magnitude of voltage, the shutoff signal of this is under-voltage monitoring comparator sends lighting lamp circuit;
One electronic switch: be connected in the loop of lithium battery and illuminating lamp, the control end of this electronic switch is connected with described under-voltage monitoring comparator output terminal, it is characterized in that, also comprises:
One early warning voltage monitoring comparator: be used to monitor the output voltage values of lithium battery, send early warning signal when this output voltage values is lower than predetermined early warning magnitude of voltage, this early warning magnitude of voltage is higher than described cut-out magnitude of voltage certain amplitude;
One low-frequency oscillator: its input is connected with the output of described early warning voltage monitoring comparator, and the output of this low-frequency oscillator is connected with the control end of described electronic switch.
2, the lithium battery mine lamp that early warning is arranged according to claim 1 is characterized in that: described electronic switch adopts field-effect transistor, and its grid is as described control end, and its source electrode and drain electrode are connected the electric power loop of illuminating lamp.
3, the lithium battery mine lamp that early warning is arranged according to claim 1 and 2 is characterized in that: described illuminating lamp adopts bulb or light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620158240 CN200993316Y (en) | 2006-11-09 | 2006-11-09 | Prewarning lithium cell miner's lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620158240 CN200993316Y (en) | 2006-11-09 | 2006-11-09 | Prewarning lithium cell miner's lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993316Y true CN200993316Y (en) | 2007-12-19 |
Family
ID=38946390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620158240 Expired - Fee Related CN200993316Y (en) | 2006-11-09 | 2006-11-09 | Prewarning lithium cell miner's lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200993316Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107615673A (en) * | 2015-04-17 | 2018-01-19 | 豪倍公司 | Programmable Emergency Lighting Unit Incorporating Near Field Communication |
-
2006
- 2006-11-09 CN CN 200620158240 patent/CN200993316Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107615673A (en) * | 2015-04-17 | 2018-01-19 | 豪倍公司 | Programmable Emergency Lighting Unit Incorporating Near Field Communication |
| CN107615673B (en) * | 2015-04-17 | 2022-05-10 | 豪倍照明公司 | Emergency light-emitting unit and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |