CN203490812U - Alarm device of humidity detection integrated circuit - Google Patents
Alarm device of humidity detection integrated circuit Download PDFInfo
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- CN203490812U CN203490812U CN201320585754.9U CN201320585754U CN203490812U CN 203490812 U CN203490812 U CN 203490812U CN 201320585754 U CN201320585754 U CN 201320585754U CN 203490812 U CN203490812 U CN 203490812U
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- triode
- resistance
- electric capacity
- integrated chip
- diode
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Abstract
The utility model discloses an alarm device of a humidity detection integrated circuit. The alarm device comprises a direct-current power supply, a switch, a loudspeaker, a first capacitor, a second capacitor, a third capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a potentiometer, a voice integrated chip, a diode, a first triode, a second triode, a third triode, a fourth triode, and a moisture-sensitive sensor. The alarm device of the humidity detection integrated circuit according to the utility model is advantaged by being simple in circuit structure, small in number of adopted elements, small in size, low in cost, and easy to manufacture; and at the same time, the delay time of action of the alarm device can be changed by adjusting the resistance value of the potentiometer and the tone of alarm voice can be changed by altering the resistance value of the third resistor.
Description
Technical field
The utility model relates to the parts that a kind of integrated circuit is relevant, relates in particular to a kind of alarm of Humidity Detection integrated circuit.
Background technology
The alarm of Humidity Detection integrated circuit of the prior art, circuit structure is complicated, employing element is many, bulky, cost of manufacture is high and be not easy to make, and the alarm of Humidity Detection integrated circuit of the prior art, can not change the time delay of alarm and the tone of alarm voice.
Utility model content
The purpose of this utility model is just to provide in order to address the above problem a kind of alarm of Humidity Detection integrated circuit.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises direct supply, switch, loudspeaker, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, potentiometer, voice integrated chip, diode, the first triode, the second triode, the 3rd triode, the 4th triode and moisture sensor, the positive pole of described direct supply is connected with the first end of described switch, the negative pole while of described direct supply and the first end of described the first electric capacity, the emitter of described the first triode, the first end of described the second resistance, the power-of described voice integrated chip is extreme, the first end of described the second electric capacity, the first end of described the 3rd electric capacity, the emitter of described the 3rd triode is connected with the emitter of described the 4th triode, the second end while of described switch and the second end of described the first electric capacity, the first end of described loudspeaker, the power positive end of described voice integrated chip, the first end of described the 3rd resistance, the collector of described the second triode, the sliding end of described potentiometer, the first end of described potentiometer, described the 4th first end of resistance and the first end of described moisture sensor are connected, the first end of described the first resistance is connected with the base stage of described the first triode, the second end of described the first resistance is connected with the signal output part of described voice integrated chip, the second end of described the second resistance is connected with the emitter of described the second triode with the trigger end of described voice integrated chip simultaneously, the second end of described the 3rd resistance is connected with the signal input part of described voice integrated chip and the second end of described the second electric capacity simultaneously, the second end of described the 4th resistance is connected with the first end of described the 5th resistance with the base stage of described the 3rd triode simultaneously, the second end of described the 5th resistance is connected with the collector of described the 4th triode, the first end of described the 6th resistance is connected with the second end of described moisture sensor, the second end of described the 6th resistance is connected with the base stage of described the 4th triode, the collector of described the first triode is connected with the second end of described loudspeaker, the base stage of described the second triode is connected with the negative pole of described diode, the collector while of described the 3rd triode and the second end of described potentiometer, the second end of described the 3rd electric capacity and the positive pole of described diode are connected.
Particularly, described the first electric capacity and described the 3rd electric capacity all select withstand voltage to be greater than the aluminium electrolutic capacitor of 6V, and described the second electric capacity is selected high frequency ceramic capacitor; It is the transwitch diode of 1N4148 that described diode is selected model.
The beneficial effects of the utility model are:
The utility model is a kind of alarm of Humidity Detection integrated circuit, have circuit structure simple, adopt that element is few, volume is little, cost is low and the advantage such as easy making, the resistance value of while regulator potentiometer, can change the time delay of alarm action, change the resistance value of the 3rd resistance, can change the tone of alarm voice.
Accompanying drawing explanation
Fig. 1 is circuit structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1: the utility model comprises direct supply E, K switch, loudspeaker BL, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, potentiometer RP, voice integrated chip IC, diode VD, the first triode VT1, the second triode VT2, the 3rd triode VT3, the 4th triode VT4 and moisture sensor SR, the positive pole of direct supply E is connected with the first end of K switch, the negative pole while of direct supply E and the first end of the first capacitor C 1, the emitter of the first triode VT1, the first end of the second resistance R 2, the power-of voice integrated chip IC is extreme, the first end of the second capacitor C 2, the first end of the 3rd capacitor C 3, the emitter of the 3rd triode VT3 is connected with the emitter of the 4th triode VT4, the second end while of K switch and the second end of the first capacitor C 1, the first end of loudspeaker BL, the power positive end of voice integrated chip IC, the first end of the 3rd resistance R 3, the collector of the second triode VT2, the sliding end of potentiometer RP, the first end of potentiometer RP, the first end of the 4th resistance R 4 is connected with the first end of moisture sensor SR, the first end of the first resistance R 1 is connected with the base stage of the first triode VT1, the second end of the first resistance R 1 is connected with the signal output part of voice integrated chip IC, the second end of the second resistance R 2 is connected with the emitter of the second triode VT2 with the trigger end of voice integrated chip IC simultaneously, the second end of the 3rd resistance R 3 is connected with the second end of the second capacitor C 2 with the signal input part of voice integrated chip IC simultaneously, the second end of the 4th resistance R 4 is connected with the first end of the 5th resistance R 5 with the base stage of the 3rd triode VT3 simultaneously, the second end of the 5th resistance R 5 is connected with the collector of the 4th triode VT4, the first end of the 6th resistance R 6 is connected with the second end of moisture sensor SR, the second end of the 6th resistance R 6 is connected with the base stage of the 4th triode VT4, the collector of the first triode VT1 is connected with the second end of loudspeaker BL, the base stage of the second triode VT2 is connected with the negative pole of diode VD, the collector while of the 3rd triode VT3 and the second end of potentiometer RP, the second end of the 3rd capacitor C 3 is connected with the positive pole of diode VD, the first capacitor C 1 and the 3rd capacitor C 3 all select withstand voltage to be greater than the aluminium electrolutic capacitor of 6V, the second capacitor C 2 is selected high frequency ceramic capacitor, and it is the transwitch diode of 1N4148 that diode VD selects model.
As shown in Figure 1: in dry place, the resistance value at moisture sensor SR two ends is almost infinity, the 4th triode VT4 cut-off, the 3rd triode VT3 conducting, diode VD and the second triode VT2 all end, voice integrated chip IC does not work because trigger end is always low level, and loudspeaker BL is sounding not.Once local moist, moisture sensor SR two ends become low resistive state from high-impedance state because of liquid conduction, make the 4th triode VT4 positively biased conducting, the 3rd triode VT3 cut-off, supply voltage charges to the 3rd capacitor C 3 through potentiometer RP, 1-2min after the 3rd capacitor C 3 chargings finish, diode VD and the second triode VT2 conducting in succession, the high level of the second triode VT2 emitter output makes voice integrated chip IC be triggered and work, signal output part output voice signal from voice integrated chip IC, this signal is after the first triode VT1 amplifies, promote loudspeaker BL and send voice reminder sound.The resistance value of regulator potentiometer RP, can change the time delay that alarm moves, and changes the resistance value of the 3rd resistance R 3, can change the tone of alarm voice.
Claims (3)
1. an alarm for Humidity Detection integrated circuit, is characterized in that: comprise direct supply, switch, loudspeaker, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, potentiometer, voice integrated chip, diode, the first triode, the second triode, the 3rd triode, the 4th triode and moisture sensor, the positive pole of described direct supply is connected with the first end of described switch, the negative pole while of described direct supply and the first end of described the first electric capacity, the emitter of described the first triode, the first end of described the second resistance, the power-of described voice integrated chip is extreme, the first end of described the second electric capacity, the first end of described the 3rd electric capacity, the emitter of described the 3rd triode is connected with the emitter of described the 4th triode, the second end while of described switch and the second end of described the first electric capacity, the first end of described loudspeaker, the power positive end of described voice integrated chip, the first end of described the 3rd resistance, the collector of described the second triode, the sliding end of described potentiometer, the first end of described potentiometer, described the 4th first end of resistance and the first end of described moisture sensor are connected, the first end of described the first resistance is connected with the base stage of described the first triode, the second end of described the first resistance is connected with the signal output part of described voice integrated chip, the second end of described the second resistance is connected with the emitter of described the second triode with the trigger end of described voice integrated chip simultaneously, the second end of described the 3rd resistance is connected with the signal input part of described voice integrated chip and the second end of described the second electric capacity simultaneously, the second end of described the 4th resistance is connected with the first end of described the 5th resistance with the base stage of described the 3rd triode simultaneously, the second end of described the 5th resistance is connected with the collector of described the 4th triode, the first end of described the 6th resistance is connected with the second end of described moisture sensor, the second end of described the 6th resistance is connected with the base stage of described the 4th triode, the collector of described the first triode is connected with the second end of described loudspeaker, the base stage of described the second triode is connected with the negative pole of described diode, the collector while of described the 3rd triode and the second end of described potentiometer, the second end of described the 3rd electric capacity and the positive pole of described diode are connected.
2. the alarm of Humidity Detection integrated circuit according to claim 1, is characterized in that: described the first electric capacity and described the 3rd electric capacity all select withstand voltage to be greater than the aluminium electrolutic capacitor of 6V, and described the second electric capacity is selected high frequency ceramic capacitor.
3. the alarm of Humidity Detection integrated circuit according to claim 1, is characterized in that: it is the transwitch diode of 1N4148 that described diode is selected model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585754.9U CN203490812U (en) | 2013-09-23 | 2013-09-23 | Alarm device of humidity detection integrated circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585754.9U CN203490812U (en) | 2013-09-23 | 2013-09-23 | Alarm device of humidity detection integrated circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203490812U true CN203490812U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320585754.9U Expired - Fee Related CN203490812U (en) | 2013-09-23 | 2013-09-23 | Alarm device of humidity detection integrated circuit |
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| Country | Link |
|---|---|
| CN (1) | CN203490812U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374884A (en) * | 2014-12-04 | 2015-02-25 | 成都深思科技有限公司 | Humidity detection alarm for industrial factory buildings |
| CN109634433A (en) * | 2018-12-18 | 2019-04-16 | 山东超越数控电子股份有限公司 | A kind of reinforced keyboard suitable for adverse circumstances |
-
2013
- 2013-09-23 CN CN201320585754.9U patent/CN203490812U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374884A (en) * | 2014-12-04 | 2015-02-25 | 成都深思科技有限公司 | Humidity detection alarm for industrial factory buildings |
| CN109634433A (en) * | 2018-12-18 | 2019-04-16 | 山东超越数控电子股份有限公司 | A kind of reinforced keyboard suitable for adverse circumstances |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN HAOYUQI TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: CHENGDU HAODI TECHNOLOGY CO., LTD. Effective date: 20141229 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610000 CHENGDU, SICHUAN PROVINCE TO: 518001 SHENZHEN, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20141229 Address after: 518001, Shun Tian building, 62 Temple Road, Nanshan District, Guangdong, Shenzhen, 8D Patentee after: SHENZHEN HAOYUQI TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 610000, room 6, building 118, incubator Software Park, Chengdu hi tech Zone Incubator, Sichuan, China Patentee before: CHENGDU HAODI TECHNOLOGY CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20160923 |