CN202335016U - Switch circuit of small night light - Google Patents
Switch circuit of small night light Download PDFInfo
- Publication number
- CN202335016U CN202335016U CN2011204733978U CN201120473397U CN202335016U CN 202335016 U CN202335016 U CN 202335016U CN 2011204733978 U CN2011204733978 U CN 2011204733978U CN 201120473397 U CN201120473397 U CN 201120473397U CN 202335016 U CN202335016 U CN 202335016U
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- Prior art keywords
- triode
- resistance
- utmost point
- electrode
- switching circuit
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- Expired - Fee Related
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Abstract
The utility model relates to a small night light, in particular to a small night light structure for controlling the light to be on and off through blowing. The switch circuit of the small night light is arranged inside the small night light. The switch circuit consists of resistors, capacitors, a negative-positive-negative (NPN) triode and a microphone, wherein a resistor R4 which is connected to an anode of a power supply is connected to an electrode b of the triode Q1 through a resistor R1 and a capacitor C1, the other end of the resistor R4 is also connected with a resistor R3 to an electrode c of the triode Q1, a resistor R2 is also arranged between the electrode b and the electrode c of the triode Q1, one end of the microphone MIC1 is connected between the resistor R1 and the capacitor C1, the other end of the microphone MIC1 is connected to an electrode e of the triode Q1, a capacitor C2 is also arranged between the electrode e and the electrode c of the triode Q1, and the electrode c of the triode Q1 is a switch signal output end of the switch circuit.
Description
Technical field
The utility model relates to mini light night, relates in particular to the switching circuit of kind of mini light night.
Background technology
Mini light night generally is mounted on the metope or puts on the table, is used as the complementary illumination and the usefulness of decoration, and it is not to use as indoor main light source.It can be installed on the wall of locating in the head of a bed, entrance hall, corridor etc. or on the pillar.Mini light night light is soft, and it is not high to brightness requirement, mainly is to build a kind of atmosphere, and in boundless and indistinct dark, plays the booster action that guides illumination.
The switching circuit of the light on and off of control mini light night also is multiple.Like the mini light night of CN201696890U, comprise power module, light emitting module, be used to control the control module of light emitting module and power module cut-off/close, power module comprises the charging circuit that is used to charge the battery; Light emitting module comprise luminous lamp and through the strong and weak control of light luminous lamp bright/light-operated circuit that goes out.The mini light night of this patent is controlled the switch of luminous lamp automatically through the bright and dark light around the light-operated circuit perception.The intelligent mini light night of CN2919774 and for example comprises that main control circuit, human heat release infrared sensor, optical sensor, power circuit, lighting circuit, and human heat is released infrared sensor, optical sensor, lighting circuit and is electrically connected with main control circuit respectively; Power circuit is electrically connected with main control circuit, lighting circuit respectively.Because set up the transducer of ambient light sensor and detection physical activity, the mini light night of this patent satisfies at the same time: ambient lighting intensity just is unlocked less than set point, when these two conditions of physical activity are arranged.Certain, also have a kind of mini light night that triggers through vibration.The switching circuit of this mini light night mainly is to trigger through the vibration of the shell fragment in the vibrating sensor.The insufficient sensitivity that this vibration triggers, and damage easily.
The utility model content
Therefore, the utility model proposes a kind of switching circuit of a kind of mini light night that can trigger through the air vibration that sound drives, and not only trigger sensitivity more, and longer service life is of a specified duration.
The technical scheme of the utility model is:
A kind of switching circuit of mini light night is arranged at mini light night inside.Described switching circuit is made up of resistance, electric capacity, NPN triode and microphone; The resistance R 4 that is connected to positive source is connected to the b utmost point of triode Q1 through resistance R 1 and capacitor C 1; Another section of resistance R 4 also connects the c utmost point of a resistance R 3 to triode Q1; Also connect a resistance R 2 between the b utmost point of triode Q1 and the c utmost point, microphone MIC1 one terminates between resistance R 1, the capacitor C 1, and another section is connected on the e utmost point of triode Q1; Also connect a capacitor C 2 between the e utmost point of triode Q1 and the c utmost point, the c of triode Q1 is the switching signal output of this switching circuit very.
Preferably, the model of described triode Q1 is S8050.
Preferably, described microphone MIC1 is the integral type silicon microphone.
The utility model is through technique scheme, proposed the air vibration that a kind of sound drives and the switching circuit of a kind of mini light night that triggers, and not only triggers sensitively more, and longer service life is of a specified duration.
Description of drawings
Fig. 1 is the circuit diagram of the utility model.
Embodiment
Combine accompanying drawing and embodiment that the utility model is further specified at present.
Consult shown in Figure 1ly, the switching circuit of the mini light night of the utility model is arranged at mini light night inside, and described switching circuit is made up of resistance, electric capacity, NPN triode and microphone.Concrete; Be connected to the resistance R 4 process resistance R 1 of positive source and the b utmost point that capacitor C 1 is connected to triode Q1, another section of resistance R 4 also connects the c utmost point of a resistance R 3 to triode Q1, also connects a resistance R 2 between the b utmost point of triode Q1 and the c utmost point; Microphone MIC1 one terminates between resistance R 1, the capacitor C 1; Another section is connected on the e utmost point of triode Q1, also connects a capacitor C 2 between the e utmost point of triode Q1 and the c utmost point, and the c of triode Q1 is the switching signal output of this switching circuit very.
Preferably, the model of described triode Q1 is S8050.
Preferably, described microphone MIC1 is the integral type silicon microphone.
The switching circuit person of being to use of the mini light night of the utility model sends air-flow or bounces mini light night or send the sound and make the sound air-flow of vibrations arrive microphone MIC1, thereby makes the switch terminals (4 pin) of control chip U1 of c utmost point output switching signal to the mini light night of triode Q1.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; But the those skilled in the art should be understood that; In the spirit and scope of the utility model that does not break away from appended claims and limited; Can make various variations to the utility model in form with on the details, be the protection range of the utility model.
Claims (3)
1. the switching circuit of a mini light night; Be arranged at mini light night inside, it is characterized in that: described switching circuit is made up of resistance, electric capacity, NPN triode and microphone, and the resistance R 4 that is connected to positive source is connected to the b utmost point of triode Q1 through resistance R 1 and capacitor C 1; Another section of resistance R 4 also connects the c utmost point of a resistance R 3 to triode Q1; Also connect a resistance R 2 between the b utmost point of triode Q1 and the c utmost point, microphone MIC1 one terminates between resistance R 1, the capacitor C 1, and another section is connected on the e utmost point of triode Q1; Also connect a capacitor C 2 between the e utmost point of triode Q1 and the c utmost point, the c of triode Q1 is the switching signal output of this switching circuit very.
2. the switching circuit of mini light night according to claim 1, it is characterized in that: the model of described triode Q1 is S8050.
3. the switching circuit of mini light night according to claim 1, it is characterized in that: described microphone MIC1 is the integral type silicon microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204733978U CN202335016U (en) | 2011-11-24 | 2011-11-24 | Switch circuit of small night light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204733978U CN202335016U (en) | 2011-11-24 | 2011-11-24 | Switch circuit of small night light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202335016U true CN202335016U (en) | 2012-07-11 |
Family
ID=46446978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204733978U Expired - Fee Related CN202335016U (en) | 2011-11-24 | 2011-11-24 | Switch circuit of small night light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202335016U (en) |
-
2011
- 2011-11-24 CN CN2011204733978U patent/CN202335016U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131124 |