CN204652499U - A kind of preventing mobile phone water circuit structure - Google Patents
A kind of preventing mobile phone water circuit structure Download PDFInfo
- Publication number
- CN204652499U CN204652499U CN201520150964.4U CN201520150964U CN204652499U CN 204652499 U CN204652499 U CN 204652499U CN 201520150964 U CN201520150964 U CN 201520150964U CN 204652499 U CN204652499 U CN 204652499U
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- China
- Prior art keywords
- mobile phone
- triode
- humidity sensor
- battery
- control circuit
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Abstract
The utility model discloses a kind of preventing mobile phone water circuit structure, it is installed between the battery of mobile phone and circuit board, described preventing mobile phone water circuit structure comprises humidity sensor, control circuit and switch, described switch is connected between battery and circuit board, the output of described control circuit is connected with switch, described humidity sensor is connected with the input of control circuit, and described humidity sensor is installed on the enclosure interior of mobile phone.The utility model carrys out detection of handset by humidity sensor and whether meets water, when mobile phone is met water or is in moist environment, is disconnected the disconnection realizing battery and circuit board by control circuit control switch.
Description
Technical field
The utility model relates to mobile phone waterproof technical field, more particularly, and particularly a kind of preventing mobile phone water circuit structure.
Background technology
The mobile phones such as mobile phone are applied widely, but, existing mobile phone does not generally have water-proof function, after mobile phone to be drenched or soaks or run into moist environment by water, because battery and inner circuit are also in conducting state, now be subject to the result of chemical reaction, easily cause mobile phone circuit to be corroded, even produce and scrap.In prior art, the general mechanical structure that adopts seals, but because mechanical seal is owing to being subject to the restriction of structure, can not carry out waterproofing protection completely to mobile phone internal circuit board especially battery.Therefore, a kind of chance when mobile phone of necessary design can to disconnect battery and internal circuit board after water automatically to protect the circuit structure of mobile phone.
Utility model content
The purpose of this utility model is the preventing mobile phone water circuit structure providing a kind of structure simple, easy to use, and this circuit has to meet at mobile phone and automatically can to disconnect battery and internal circuit board after water to protect the advantage of mobile phone.
In order to achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of preventing mobile phone water circuit structure, it is installed between the battery of mobile phone and circuit board, described preventing mobile phone water circuit structure comprises humidity sensor, control circuit and switch, described switch is connected between battery and circuit board, the output of described control circuit is connected with switch, described humidity sensor is connected with the input of control circuit, and described humidity sensor is installed on the enclosure interior of mobile phone.
Preferably, described switch is the first triode, and the described collector electrode of the first triode is connected with the positive pole of battery, and its emitter is connected with the input of circuit board, and its base stage is connected with the output of control circuit.
Preferably, described control circuit comprises the first resistance, the first electric capacity, the second resistance, the second electric capacity, diode and the second triode; The anode of described diode is connected with the base stage of the first triode, and its negative electrode is connected with the collector electrode of the second triode by the first resistance; The base stage of described second triode is connected with humidity sensor, and its emitter is connected with the negative pole of battery; Described first electric capacity and the first resistance are in parallel, and between the base stage that described second resistance is connected to the second triode and emitter, described second electric capacity and the second resistance are in parallel; The anode of described diode connects high level.
Compared with prior art, the utility model has the advantage of: the utility model in use, carry out detection of handset by humidity sensor and whether meet water, when mobile phone is met water or is in moist environment, disconnected the disconnection realizing battery and circuit board by control circuit control switch.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the frame diagram of preventing mobile phone water circuit structure described in the utility model.
Fig. 2 is the circuit diagram of preventing mobile phone water circuit structure described in the utility model.
Description of reference numerals: 1, battery, 2, circuit board, 3, humidity sensor, 4, control circuit, 5, switch.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection range of the present utility model.
Consult shown in Fig. 1 and Fig. 2, the utility model provides a kind of preventing mobile phone water circuit structure, it is installed between the battery 1 of mobile phone and circuit board 2, described preventing mobile phone water circuit structure comprises humidity sensor 3, control circuit 4 and switch 5, described switch 5 is connected between battery 1 and circuit board 2, the output of described control circuit 4 is connected with switch 5, and described humidity sensor 3 is connected with the input of control circuit 4, and described humidity sensor 3 is installed on the enclosure interior of mobile phone.
In the utility model, described switch 5 is the first triode Q1, and the collector electrode of described first triode Q1 is connected with the positive pole of battery 1, and its emitter is connected with the input of circuit board, and its base stage is connected with the output of control circuit 4.
In the utility model, described control circuit 4 comprises the first resistance R1, the first electric capacity C1, the second resistance R2, the second electric capacity C2, diode D1 and the second triode Q2; The anode of described diode D1 is connected with the base stage of the first triode, and its negative electrode is connected with the collector electrode of the second triode Q2 by the first resistance R1; The base stage of described second triode Q2 is connected with humidity sensor 3, and its emitter is connected with the negative pole of battery 1; Described first electric capacity C1 and the first resistance R1 is in parallel, and between the base stage that described second resistance R2 is connected to the second triode Q2 and emitter, described second electric capacity C2 and the second resistance R2 is in parallel; The anode of described diode D1 connects high level (can be connected with the high level output end of chip on circuit board 2).
Operation principle of the present utility model is: in use, carry out detection of handset by humidity sensor 3 and whether meet water, when mobile phone is met water or is in moist environment, humidity sensor 3 is in high level, humidity sensor 3 exports high level, now the second triode Q2 conducting, and the level at P place is dragged down, disconnected by first triode Q1, namely battery 1 and circuit board 2 disconnect; When water do not met by mobile phone, humidity sensor 3 is in low level, now the second triode Q2 not conducting, and the level at P place is in high level state all the time, the first triode Q1 conducting, and namely battery 1 is connected with circuit board 2, and mobile phone is in normal operating conditions; The utility model disconnects the disconnection realizing battery and circuit board by control circuit control switch, have the advantage that structure is simple, easy to use.
Although describe execution mode of the present utility model by reference to the accompanying drawings; but patent owner can make various distortion or amendment within the scope of the appended claims; as long as be no more than the protection range described by claim of the present utility model, all should within protection range of the present utility model.
Claims (3)
1. a preventing mobile phone water circuit structure, it is installed between the battery (1) of mobile phone and circuit board (2), it is characterized in that: described preventing mobile phone water circuit structure comprises humidity sensor (3), control circuit (4) and switch (5), described switch (5) is connected between battery (1) and circuit board (2), the output of described control circuit (4) is connected with switch (5), described humidity sensor (3) is connected with the input of control circuit (4), and described humidity sensor (3) is installed on the enclosure interior of mobile phone.
2. preventing mobile phone water circuit structure according to claim 1, it is characterized in that: described switch (5) is the first triode, the collector electrode of described first triode is connected with the positive pole of battery (1), its emitter is connected with the input of circuit board, and its base stage is connected with the output of control circuit (4).
3. preventing mobile phone water circuit structure according to claim 1, is characterized in that: described control circuit (4) comprises the first resistance R1, the first electric capacity C1, the second resistance R2, the second electric capacity C2, diode D1 and the second triode Q2; The anode of described diode D1 is connected with the base stage of the first triode, and its negative electrode is connected with the collector electrode of the second triode Q2 by the first resistance R1; The base stage of described second triode Q2 is connected with humidity sensor (3), and its emitter is connected with the negative pole of battery (1); Described first electric capacity C1 and the first resistance R1 is in parallel, and between the base stage that described second resistance R2 is connected to the second triode Q2 and emitter, described second electric capacity C2 and the second resistance R2 is in parallel; The anode of described diode D1 connects high level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520150964.4U CN204652499U (en) | 2015-03-17 | 2015-03-17 | A kind of preventing mobile phone water circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520150964.4U CN204652499U (en) | 2015-03-17 | 2015-03-17 | A kind of preventing mobile phone water circuit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204652499U true CN204652499U (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520150964.4U Expired - Fee Related CN204652499U (en) | 2015-03-17 | 2015-03-17 | A kind of preventing mobile phone water circuit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204652499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111109780A (en) * | 2019-12-31 | 2020-05-08 | 歌尔科技有限公司 | Wristband equipment and immersion liquid detection method thereof |
-
2015
- 2015-03-17 CN CN201520150964.4U patent/CN204652499U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111109780A (en) * | 2019-12-31 | 2020-05-08 | 歌尔科技有限公司 | Wristband equipment and immersion liquid detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20180317 |
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| CF01 | Termination of patent right due to non-payment of annual fee |