CN202013374U - Low voltage detection warning device - Google Patents
Low voltage detection warning device Download PDFInfo
- Publication number
- CN202013374U CN202013374U CN 201020676621 CN201020676621U CN202013374U CN 202013374 U CN202013374 U CN 202013374U CN 201020676621 CN201020676621 CN 201020676621 CN 201020676621 U CN201020676621 U CN 201020676621U CN 202013374 U CN202013374 U CN 202013374U
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- resistance
- voltage identification
- low
- identification switch
- switch
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- 238000001514 detection method Methods 0.000 title abstract description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 230000010355 oscillation Effects 0.000 abstract 3
- 230000005404 monopole Effects 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model provides a low voltage detection warning device which is characterized in that the device includes a to-be-detected power supply, a low voltage identification switch, an oscillation unit, and a flashing warning unit; the to-be-detected power supply is connected with the low voltage identification switch; the low voltage identification switch is connected with the oscillation unit and the flashing warning unit respectively; the oscillation unit is connected with the flashing warning unit and an earth terminal in turn; the low voltage identification switch is an electronic switch; and the flashing warning unit includes an LED power indicator. The device can use an operating power supply at the to-be-detected place and can provide voltage for a monopole LED indicating lamp directly. Besides, the device is low in cost and can give different warning effects according to different voltages.
Description
Technical field
This novel electronic signal measurement field that belongs to is specifically related to the alarming device that a kind of voltage just detects.
Background technology
The work of modern various electronic products all needs power supply that the work operation is provided, and utilizes battery operated product then numerous.Utilize battery operated in, because battery all has its certain electric weight, its internal drop can reduce naturally after using a period of time, thereby influence the operate as normal of product, for some exact instrument or the continuous instrument of demand operational process, the normal operation of its work has great importance for the functional effect of its required realization, and the prompting technology of voltage detecting becomes the necessary component of the type product naturally.Existing voltage detection device is generally monolithic device, it is that an individual devices is connected in outside the product equipment, and number average need provide an extra power supply mostly, need to consume extra resource to supply voltage to its pick-up unit, guarantee the normal operation of detection, because non-substantivity measure to show that also there is certain deviation in the degree of accuracy of measurement result, the low and prompting mode of the integrating degree between itself and power supply is not obvious etc., and problem all has to be solved.And the cost cost is higher, and therefore its production cost can cause higher, and product is subjected to certain restriction to this The Application of Technology and production.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of alarming device of voltage detecting, it can use the working power at detected place, directly provide voltage to the one pole LED light, in cheap, also reach according to voltage and just carry out the corresponding warning effect.
This novel described a kind of low pressure detects alarming device, it comprises a detected power supply, low-voltage identification switch, oscillating unit and flash of light caution unit, described detected power supply connects described low-voltage identification switch, described low-voltage identification switch connects described oscillating unit and flash of light caution unit respectively, and described oscillating unit connects described flash of light caution unit and ground end successively.Described low-voltage identification switch is an electronic switch; Described oscillating unit comprises two electric capacity, five resistance and two electronic switches, wherein, described low-voltage identification switch connects first resistance successively, first electronic switch, the 5th resistance and described flash of light caution unit, one end of first electric capacity is connected between first resistance and first electronic switch, and connect the 3rd resistance successively, one end of second electric capacity and the 4th resistance, the other end of the 4th resistance is connected to the other end of first electric capacity, one end of second electronic switch is connected between second electric capacity and the 4th resistance, and the other end connects second resistance and described low-voltage identification switch successively; Described flash of light caution unit comprises a LED power light.
Use device of the present utility model, it can reach following beneficial effect: the working power of utilizing detected place, directly provide voltage to the LED power light, just realize the voltage alarm function according to its voltage, its cost is very cheap, can finish electrical design under low cost, only needs cost promptly to realize the low pressure alarming device for 0.23 yuan, and need not use monolithic device at high price, and the simply constructed while also can reach the caution effect of expection.
Description of drawings
Fig. 1 is device working envelope figure of the present utility model;
Fig. 2 is device circuit figure of the present utility model.
Embodiment
Referring to Fig. 1, Fig. 2, low pressure described in the utility model detects alarming device, it comprises a detected power supply, low-voltage identification switch, oscillating unit and flash of light caution unit, described detected power supply connects described low-voltage identification switch, described low-voltage identification switch connects described oscillating unit and flash of light caution unit respectively, and described oscillating unit connects described flash of light caution unit and ground end successively.
Described low-voltage identification switch is an electronic switch Q1; Described oscillating unit comprises two electric capacity, five resistance and two electronic switches, wherein, described low-voltage identification switch connects resistance R 1, electronic switch Q2, resistance R and described flash of light caution unit successively, the end of C1 is connected between resistance R 1 and the electronic switch Q2, and connect an end of resistance R 3, capacitor C 2 and resistance R 4 successively, the other end of resistance R 4 is connected to the other end of capacitor C 1, the end of electronic switch Q3 is connected between capacitor C 2 and the resistance R 4, and the other end connects resistance R 2 and described low-voltage identification switch successively; Described flash of light caution unit comprises a LED power light.
The low-voltage identification switch utilizes potential difference (PD) to detect voltage status, it is provided with a reference point 1.8V, and when detected power supply was higher than 1.8V, it was connected directly to flash of light caution unit by the low-voltage identification switch, the LED power light is directly powered, at this moment LED lamp Chang Liang; When detected power supply was less than or equal to 1.8V, detected power supply was connected to multi-harmonic-oscillations caution drive unit by the low-voltage identification switch and drives flash of light caution unit, and the device that the low-voltage identification switch is connected directly to flash of light caution unit disconnects.Owing to disconnect when electronic switch Q2 is in low pressure in the described multi-harmonic-oscillations caution drive unit, detecting power supply charges to capacitor C 1, C2 this moment, after charging is finished, because the magnitude of voltage that capacitor C 1 and resistance R are 1 is higher, electronic switch Q2 conducting, electric current makes it shinny by the LED lamp, because the continuous discharge of electric capacity, after the magnitude of voltage that capacitor C 1 and resistance R are 1 reduces gradually, this moment, electronic switch Q2 disconnected, LED lamp no current is by extinguishing, and the driving LED thereby realization is vibrated makes it produce the effect of flicker.
As described in this novel the foregoing description, adopt resulting other low pressure of other schemes same or analogous to detect alarming device, all in the utility model protection domain with it.
Claims (4)
1. a low pressure detects alarming device, it is characterized in that, comprise a detected power supply, low-voltage identification switch, oscillating unit and flash of light caution unit, described detected power supply connects described low-voltage identification switch, described low-voltage identification switch connects described oscillating unit and flash of light caution unit respectively, and described oscillating unit connects described flash of light caution unit and ground end successively.
2. low pressure according to claim 1 detects alarming device, it is characterized in that, described oscillating unit comprises two electric capacity, five resistance and two electronic switches, wherein, described low-voltage identification switch connects first resistance successively, first electronic switch, the 5th resistance and described flash of light caution unit, one end of first electric capacity is connected between first resistance and first electronic switch, and connect the 3rd resistance successively, one end of second electric capacity and the 4th resistance, the other end of the 4th resistance is connected to the other end of first electric capacity, one end of second electronic switch is connected between second electric capacity and the 4th resistance, and the other end connects second resistance and described low-voltage identification switch successively.
3. low pressure according to claim 1 detects alarming device, it is characterized in that described low-voltage identification switch is an electronic switch.
4. low pressure according to claim 1 detects alarming device, it is characterized in that, described flash of light caution unit comprises a LED power light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020676621 CN202013374U (en) | 2010-12-23 | 2010-12-23 | Low voltage detection warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020676621 CN202013374U (en) | 2010-12-23 | 2010-12-23 | Low voltage detection warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202013374U true CN202013374U (en) | 2011-10-19 |
Family
ID=44783991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020676621 Expired - Lifetime CN202013374U (en) | 2010-12-23 | 2010-12-23 | Low voltage detection warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202013374U (en) |
-
2010
- 2010-12-23 CN CN 201020676621 patent/CN202013374U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 523808, No. 6, industrial North Road, Songshan hi tech Industrial Development Zone, Guangdong, Dongguan Patentee after: Uni-Trend Technology (China) Co., Ltd. Address before: 523925, Humen Town, Guangdong, Dongguan Patentee before: Uni-Trend Technology (China) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 523808 No. 6 industrial North Road, Songshan Lake high tech Industrial Development Zone, Dongguan, Guangdong Patentee after: Uno Technology (China) Limited by Share Ltd Address before: 523808 No. 6 industrial North Road, Songshan Lake high tech Industrial Development Zone, Dongguan, Guangdong Patentee before: Uni-Trend Technology (China) Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |