CN2722555Y - Emergent small night light - Google Patents
Emergent small night light Download PDFInfo
- Publication number
- CN2722555Y CN2722555Y CN 200420072598 CN200420072598U CN2722555Y CN 2722555 Y CN2722555 Y CN 2722555Y CN 200420072598 CN200420072598 CN 200420072598 CN 200420072598 U CN200420072598 U CN 200420072598U CN 2722555 Y CN2722555 Y CN 2722555Y
- Authority
- CN
- China
- Prior art keywords
- pressure lamp
- emitter
- bandgap grading
- triode
- rectifier bridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model discloses an emergent small night light which comprises a light holder, a normal voltage light, a low voltage light and a control circuit of the low voltage light. A resistor and a capacitor of the control circuit and the input terminal of a rectifying bridge are orderly connected in series. Both ends of the capacitor are connected in parallel with resistors. The output terminal of the rectifying bridge is connected with the normal voltage light. The output terminal of the positive pole of the rectifying bridge is connected with the input terminal of the base electrode of an emitting electrode bias circuit. The negative pole of the rectifying bridge is connected with the grounding terminal of the emitting electrode bias circuit. The output terminal of the emitting electrode bias circuit is connected with the base electrode of a triode through a resistor. The collector of the triode is connected with the low voltage light. The other end of the low voltage light is connected with the collector terminal of the emitting electrode bias circuit and the positive pole of a rechargeable battery in a joint. A bias diode is forward connected between the joint and the output terminal of the positive pole of the rectifying bridge. The emitting electrode of the triode and the negative pole of the rechargeable battery are connected with earth. The utility model can be served as a lighting fitting.
Description
Technical field
The utility model relates to a kind of light fixture of illumination.
Background technology
The disclosed patent No. of Chinese patent communique is ZL89212102.5, name is called the utility model patent of family expenses emergency light, comprise lamp socket, normal pressure lamp, low-pressure lamp with and control circuit, adopt in the control circuit of family expenses emergency light of this structure and use transformer, thereby cost height, and energy consumption is big, and in addition, its low-pressure lamp can not throw light on automatically when having a power failure suddenly.
Summary of the invention
This is practical to have overcome the defective on the prior art, and providing a kind of can reduce cost, can cut down the consumption of energy again, and can the automatically switch emergent mini light night of work of normal pressure lamp and low-pressure lamp.
This practical emergent mini light night, comprise lamp socket, normal pressure lamp, low-pressure lamp with and control circuit, the input of the resistance of control circuit, electric capacity, rectifier bridge is connected in series successively, the two ends of described electric capacity also and be connected to resistance; The output of described rectifier bridge is connected with the normal pressure lamp; The cathode output end of described rectifier bridge links to each other through the base input end of resistance with the emitter-base bandgap grading biasing circuit, and the negative pole of described rectifier bridge links to each other with the earth terminal of emitter-base bandgap grading biasing circuit; Emitter-base bandgap grading biasing circuit output links to each other with the base stage of triode through resistance, the collector electrode of triode is connected with low-pressure lamp, the other end of this low-pressure lamp is connected with the collector terminal of emitter-base bandgap grading biasing circuit, the anodal concurrent of rechargeable battery, and forward is connected with the diode of biasing between the cathode output end of this concurrent and rectifier bridge; The emitter-base bandgap grading of triode and the minus earth of rechargeable battery.
As a kind of improvement of the present utility model, described normal pressure lamp, low-pressure lamp are light-emitting diode; And normal pressure lamp two ends also and be connected to electric capacity; At base biasing resistor two ends of emitter-base bandgap grading biasing circuit also and be connected to electric capacity.
At the clear sheet that is stamped of normal pressure lamp, this clear sheet and lamp socket are connected and fixed.
Go back die casting on the described clear sheet pattern depression or that protrude is arranged.
Emergent mini light night of the present utility model has and can reduce cost, can cut down the consumption of energy again, and can the automatically switch beneficial effect of work of normal pressure lamp and low-pressure lamp.
Description of drawings
Fig. 1 is the external form partial sectional perspective view of a specific embodiment of the utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1, emergent mini light night shown in Figure 2, comprise lamp socket 1, normal pressure lamp 2, low-pressure lamp 3 with and control circuit, the input of the resistance 11 of control circuit, electric capacity 12, rectifier bridge 13 is connected in series successively, the two ends of described electric capacity 12 also and be connected to resistance 22; The output of described rectifier bridge 13 is connected with normal pressure lamp 2; The cathode output end of described rectifier bridge 13 links to each other through the base input end of resistance 24 with emitter-base bandgap grading biasing circuit 5, and the negative pole of described rectifier bridge 13 links to each other with the earth terminal of emitter-base bandgap grading biasing circuit 5; The output of emitter-base bandgap grading biasing circuit 5 links to each other through the base stage of resistance 26 with triode 6, the collector electrode of triode 6 is connected with low-pressure lamp 3, the other end of this low-pressure lamp 3 is connected with the collector terminal of emitter-base bandgap grading biasing circuit 5, the anodal concurrent of rechargeable battery, and forward is connected with the diode of biasing between the cathode output end of this concurrent and rectifier bridge 13; The emitter-base bandgap grading of triode 6 and the minus earth of rechargeable battery.
As a kind of improvement of the present utility model, described normal pressure lamp 2, low-pressure lamp 3 are light-emitting diode; And normal pressure lamp 2 two ends also and be connected to electric capacity; At base biasing resistor two ends of emitter-base bandgap grading biasing circuit 5 also and be connected to electric capacity.
Be stamped clear sheet 7 above normal pressure lamp 2, this clear sheet 7 is connected and fixed with lamp socket 1.
Go back die casting on the described clear sheet 7 pattern depression or that protrude is arranged.
Claims (4)
1, a kind of emergent mini light night, comprise lamp socket (1), normal pressure lamp (2), low-pressure lamp (3) with and control circuit, it is characterized in that: the input of the resistance of control circuit (11), electric capacity (12), rectifier bridge (13) is connected in series successively, and the two ends of described electric capacity (12) also and be connected to resistance (22); The output of described rectifier bridge (13) is connected with normal pressure lamp (2); The cathode output end of described rectifier bridge (13) links to each other through the base input end of resistance (24) with emitter-base bandgap grading biasing circuit (5), and the negative pole of described rectifier bridge (13) links to each other with the earth terminal of emitter-base bandgap grading biasing circuit (5); The output of emitter-base bandgap grading biasing circuit (5) links to each other through the base stage of resistance (26) with triode (6), the collector electrode of triode (6) is connected with low-pressure lamp (3), the other end of this low-pressure lamp (3) is connected with the anodal concurrent of the collector terminal of emitter-base bandgap grading biasing circuit (5), rechargeable battery, and forward is connected with the diode of biasing between the cathode output end of this concurrent and rectifier bridge (13); The emitter-base bandgap grading of triode (6) and the minus earth of rechargeable battery.
2, emergent mini light night according to claim 1 is characterized in that, described normal pressure lamp (2), low-pressure lamp (3) are light-emitting diode; And normal pressure lamp (2) two ends also and be connected to electric capacity; At base biasing resistor two ends of emitter-base bandgap grading biasing circuit (5) also and be connected to electric capacity.
3, emergent mini light night according to claim 1 and 2 is characterized in that, is stamped clear sheet (7) in the top of normal pressure lamp (2), and this clear sheet (7) is connected and fixed with lamp socket (1).
4, emergent mini light night according to claim 3 is characterized in that, described clear sheet (7) is gone up also die casting pattern depression or that protrude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072598 CN2722555Y (en) | 2004-08-10 | 2004-08-10 | Emergent small night light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072598 CN2722555Y (en) | 2004-08-10 | 2004-08-10 | Emergent small night light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2722555Y true CN2722555Y (en) | 2005-08-31 |
Family
ID=35012923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420072598 Expired - Fee Related CN2722555Y (en) | 2004-08-10 | 2004-08-10 | Emergent small night light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2722555Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103634962A (en) * | 2012-08-20 | 2014-03-12 | 黄琪发 | 2W LED night lamp |
-
2004
- 2004-08-10 CN CN 200420072598 patent/CN2722555Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103634962A (en) * | 2012-08-20 | 2014-03-12 | 黄琪发 | 2W LED night lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |