CN101237140A - Water-proof protection device for digital product - Google Patents
Water-proof protection device for digital product Download PDFInfo
- Publication number
- CN101237140A CN101237140A CNA2007103065629A CN200710306562A CN101237140A CN 101237140 A CN101237140 A CN 101237140A CN A2007103065629 A CNA2007103065629 A CN A2007103065629A CN 200710306562 A CN200710306562 A CN 200710306562A CN 101237140 A CN101237140 A CN 101237140A
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- digital product
- water
- protection device
- proof protection
- power supply
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Abstract
The invention provides a novel digital product waterproof protecting device: when a digital product meets water, the waterproof protecting device can cut off the power supply of the digital product immediately to protect the digital product. The invention adopts the following technical proposal to solve the technical problems: an electronic switch is arranged in a battery of the digital product and a power supply input of the digital product; a detection switch is used to detect whether water exists in the digital product; when the detection switch detects that water exists in the digital product, the electronic switch is cut off immediately to stop supplying power for the digital product in order to protect the digital product.
Description
The present invention relates to a kind of water-proof protection device of digital product, be suitable for digital camera, camcorder, mobile phone, MP3, the waterproofing protection of digital products such as MP4.
At present; the water-proof protection device of digital product is to install a waterproof case additional in the outside of product, allows water can't enter the digital product the inside, and this method will design different shells according to different products; not only cost is higher, and can influence the outward appearance and the operation of digital product.
In order to overcome the water-proof protection device deficiency of existing digital product, the invention provides a kind of new type of digital product water-proof protection device: when digital product ran into water, this water-proof protection device can disconnect the power supply of digital product at once, with the protection digital product.
The technical solution adopted for the present invention to solve the technical problems is: install an electronic switch additional in the power supply input of the battery of digital product and digital product; use a sense switch to detect whether water is arranged; when sense switch has detected water; this electronic switch disconnects at once; stop the power supply of logarithmic code product, with the protection digital product.
Dependable performance of the present invention, and circuit is simple, with low cost.
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a circuit block diagram of the present invention.
Fig. 2 is a sense switch structure chart of the present invention.
Fig. 3 is an embodiment of the invention circuit theory diagrams.
Fig. 1 is a circuit side of the present invention composition.By digital product battery 1, water testing circuit 2, control circuit 3, electronic switch 4 and digital product 5 are formed.
In Fig. 2 sense switch structure chart, Copper Foil A and Copper Foil B form chi structure, but in the middle of do not connect, be not conducting between normal condition A and the B, in the time of above water is fallen, because natural water all conducts electricity, Copper Foil A and Copper Foil B can pass through the water conducting.Sense switch is installed on the digital product shell, the place that contacts at first during water inlet, but staff does not reach, in order to avoid the mistake protection.
Fig. 3 is an embodiment of the invention circuit theory diagrams; the power supply of battery is by Vin+ and Vin-input, and Out+ and Out-connect the power supply input of digital product, and S1 can become testing circuit with R2; IC1; R2 and C2 form control circuit, and Q1 consists of electronic switch, and S2 is the opening and closing switch of protective device; when S2 opens; protective device work, when S2 closed, protective device was not worked.When S1 did not have water, S1 was an open-circuit condition.1 pin of NOR gate IC1-1 is a low level, and 2 pin of IC1-1 also are low level, thus 3 pin of NOR gate IC1-1 output high level, metal-oxide-semiconductor Q1 conducting.Out-can constitute the loop to Vin-by Q1, the digital product operate as normal, and when above the S1 water being arranged, the S1 conducting, 1 pin of IC1-1 is a high level.The 3 pin output low levels of IC1-1.Metal-oxide-semiconductor ends, and Out-can not constitute the loop to Vin-by Q1, disconnects the power supply of logarithmic code product; input pin 5, the 6 pin low levels of while IC1-2, output pin 4 output high level; the output pin 4 of IC1-2 connects the input pin 2 of IC1-1; even if when this moment, S1 did not have not conducting of water, because 2 pin of IC1-1 are high level, IC1-1 is output low level also; circuit is in protection dress attitude always; can be by splitting out battery after a while, capacitor C 1 has been put electricity, and protective circuit returns to normal condition.Also can open and close S2 cancellation protective circuit.One time of the section of mistake closes S2 again and can return to normal condition.Because this circuit has adopted the COMS circuit, the circuit power consumption is few when static.If use the digital product of lithium battery, this circuit also can be done with lithium battery protection circuit and be in the same place.
Claims (5)
1. the water-proof protection device of a digital product; comprise digital product battery 1; water testing circuit 2; control circuit 3, electronic switch 4 and digital product 5 is characterized in that this protective device is to install an electronic switch additional in the power supply input of the battery of digital product and digital product; use a sense switch to detect whether water is arranged; when sense switch had detected water, this electronic switch disconnected at once, stopped the power supply of logarithmic code product.
2. the water-proof protection device of digital product according to claim 1 is characterized in that comprising at least one water testing circuit 2.
3. the water-proof protection device of digital product according to claim 1 is characterized in that comprising at least one control circuit 3.
4. the water-proof protection device of digital product according to claim 1 is characterized in that comprising at least one electronic switch 4.
5. the water-proof protection device of digital product according to claim 1, the input that it is characterized in that this protective device is the battery of linking number code product, output is the power supply input of linking number code product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103065629A CN101237140A (en) | 2007-12-31 | 2007-12-31 | Water-proof protection device for digital product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103065629A CN101237140A (en) | 2007-12-31 | 2007-12-31 | Water-proof protection device for digital product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101237140A true CN101237140A (en) | 2008-08-06 |
Family
ID=39920555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007103065629A Pending CN101237140A (en) | 2007-12-31 | 2007-12-31 | Water-proof protection device for digital product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101237140A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243479A (en) * | 2010-05-11 | 2011-11-16 | 神基科技股份有限公司 | Electronic device for conditional power supply |
| WO2012122733A1 (en) * | 2011-03-15 | 2012-09-20 | 中兴通讯股份有限公司 | Water immersion protection apparatus for an electronic device |
| CN103092711A (en) * | 2011-10-31 | 2013-05-08 | 联想(北京)有限公司 | Power-off control method and system for electronic equipment and start control method and system for electronic equipment |
| CN104242227A (en) * | 2013-06-24 | 2014-12-24 | 中兴通讯股份有限公司 | Device and method for protecting terminal |
-
2007
- 2007-12-31 CN CNA2007103065629A patent/CN101237140A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243479A (en) * | 2010-05-11 | 2011-11-16 | 神基科技股份有限公司 | Electronic device for conditional power supply |
| US8446049B2 (en) | 2010-05-11 | 2013-05-21 | Getac Technology Corporation | Electronic apparatus and method for conditionally power supplying |
| CN102243479B (en) * | 2010-05-11 | 2013-10-09 | 神基科技股份有限公司 | Electronic device for conditional power supply |
| WO2012122733A1 (en) * | 2011-03-15 | 2012-09-20 | 中兴通讯股份有限公司 | Water immersion protection apparatus for an electronic device |
| CN103092711A (en) * | 2011-10-31 | 2013-05-08 | 联想(北京)有限公司 | Power-off control method and system for electronic equipment and start control method and system for electronic equipment |
| CN103092711B (en) * | 2011-10-31 | 2016-03-30 | 联想(北京)有限公司 | The circuit breaking controlling method of electronic equipment and system and startup control method and system |
| CN104242227A (en) * | 2013-06-24 | 2014-12-24 | 中兴通讯股份有限公司 | Device and method for protecting terminal |
| CN104242227B (en) * | 2013-06-24 | 2018-09-25 | 中兴通讯股份有限公司 | A kind of protective device and method of terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080806 |