CN201226613Y - DC florescent lamp apparatus - Google Patents
DC florescent lamp apparatus Download PDFInfo
- Publication number
- CN201226613Y CN201226613Y CNU2008201501322U CN200820150132U CN201226613Y CN 201226613 Y CN201226613 Y CN 201226613Y CN U2008201501322 U CNU2008201501322 U CN U2008201501322U CN 200820150132 U CN200820150132 U CN 200820150132U CN 201226613 Y CN201226613 Y CN 201226613Y
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- China
- Prior art keywords
- power supply
- electronic switch
- fluorescent lamp
- delayer
- connects
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- 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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Abstract
The utility model relates to a fluorescent lamp device which works with direct current and belongs to the technical field of lighting electronics; the device is to solve the technical problems of light flashing and high-frequency electromagnetic radiation of the fluorescent lamp; the fluorescent lamp device comprises a fluorescent lamp tube, a starter and a power supply which are respectively connected with the fluorescent lamp tube; the fluorescent lamp device is characterized in that the power supply comprises an AC starting power supply and a low-voltage direct current working power supply; the fluorescent lamp device also comprises an electronic switch and a delayer which is connected with and controls the electronic switch; the input end of the electronic switch is respectively connected with the starting power supply and the working power supply; the output end of the electronic switch is connected with the fluorescent lamp tube through a rectifier; the control end of the electronic switch is connected with the delayer; the electronic switch is used to convert the starting status and the working status of the fluorescent lamp; the delayer is used to control the time of the status conversion. The device is characterized by preventing light flashing of the fluorescent lamp, no high-frequency electromagnetic radiation and quite high power factor.
Description
Technical field
The utility model relates to the illumination electronic technology, particularly relates to a kind of technology that works in glimmering (day) the light modulation lighting device under the dc state.
Background technology
At present, glimmering in the prior art (day) light modulation is made up of rectifier, neon bulb, fluorescent tube, and this system is simple and practical, but two bigger defectives are arranged, and one is that power factor is low, generally is no more than 0.6; Another is exactly 50 hertz of power frequency flickers.The former can cause the electrical network energy to waste, and the latter can make people's eyes tired easily, affects one's power of vision.Useful electron rectifier scheme on the present market, power factor is greater than 0.9, and flicker frequency is 30,000 one 40 KHz, and human eye is almost imperceptible, but the high frequency electromagnetic radiation of electric ballast is very big, and long-term use can produce harmful effect to human body equally.
The utility model content
At the defective that exists in the above-mentioned prior art, technical problem to be solved in the utility model provides a kind of fluorescent lamp light flicker can avoided, and no high frequency electromagnetic radiation has the fluorescent light fittings of the usefulness DC operation of high power factor.
In order to solve the problems of the technologies described above, a kind of fluorescent light fittings provided by the utility model with DC operation, comprise fluorescent tube, connect the starter and the power supply of fluorescent tube respectively, it is characterized in that described power supply comprises the startup power supply of interchange and the working power of low-voltage direct; Fluorescent light fittings comprises that also an electronic switch is connected and controls the delayer of described electronic switch with one, the input of described electronic switch connects startup power supply and working power respectively, the output of described electronic switch connects fluorescent tube, and the control end of described electronic switch connects delayer; Described electronic switch is used for fluorescent lamp starting state and conversion of operation state, and delayer is used for the time control of described state exchange, the i.e. duration of fluorescent lamp starting state.
Further, the output of described electronic switch connects fluorescent tube through rectifier.
Further, described startup power supply is civil power (220V), and described working power is the low-voltage dc power supply of civil power (220V) after becoming (falling) pressure, rectification.
Further, described low-voltage dc power supply is made of the filter capacitor that input connects the transformer of civil power (220V), the bridge rectifier that connects the transformer output, connection bridge rectifier.
Further, described electronic switch is that first relay and second relay are formed; Being respectively applied for the control fluorescent tube connects startup power supply (live wire and ground wire) or is connected dc supply (positive pole and negative pole).
Further, the delay circuit of described delayer is made of integrated circuit (IC) 555, and be more than 1 second the time of delay of delay circuit.
Further, described starter is a neon bulb.
Utilize the fluorescent light fittings of the usefulness DC operation that the utility model provides,, fundamentally solved the high frequency electromagnetic radiation problem of flicker of fluorescent lamp light and power supply because the working power of fluorescent lamp adopts low-voltage dc power supply; And fluorescent lamp operation is in dc state, and power factor can reach more than 0.9.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model embodiment with the fluorescent light fittings of DC operation;
Fig. 2 is the circuit diagram of the utility model embodiment with the fluorescent light fittings of DC operation.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model is described in further detail, but present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof all should be listed protection range of the present utility model in.
As Fig. 1, shown in Figure 2, a kind of day (day) light modulation device that the utility model embodiment is provided with DC operation, comprise fluorescent tube, the starter and the power supply that connect fluorescent tube respectively, it is characterized in that, described power supply comprises the startup power supply of interchange and the working power of low-voltage direct, fluorescent light fittings comprises that also an electronic switch is connected and controls the delayer of described electronic switch with one, the input of electronic switch connects startup power supply and working power respectively, the output of electronic switch connects fluorescent tube through rectifier, and the control end of electronic switch connects delayer; Electronic switch is used for fluorescent lamp starting state and conversion of operation state, i.e. the starting state of fluorescent tube connection AC starting power supply is connected the conversion of operation state of low-voltage direct working power with fluorescent tube; Delayer is used for the time control of described state exchange, the i.e. duration of fluorescent lamp starting state.As shown in Figure 2, the startup power supply is civil power (220V), and working power is the low-voltage dc power supply of civil power (220V) after becoming (falling) pressure, rectification; Electronic switch is that first relay J 1 and second relay J 2 are formed, and is respectively applied for the control fluorescent tube and connects startup power supply (live wire and ground wire) or be connected dc supply (positive pole and negative pole); The normally off of first relay J 1 and second relay J 2 is the starting state of fluorescent lamp, the delay circuit of delayer is by integrated circuit (IC) 555 and comprise that elements such as capacitor C 4, resistance R 1, capacitor C 5, diode D9 constitute, and be 5-15 seconds the time of delay of delay circuit; Low-voltage dc power supply is made of the filter capacitor C1 that input connects the transformer T of civil power (220V), the bridge rectifier (comprising 4 rectifier diode D1, D2, D3, D4) that connects transformer T output, connection bridge rectifier; Starter is a neon bulb.
The fluorescent light fittings of the usefulness DC operation of the utility model embodiment: the alternating-current fluorescent lamp starter startup that is made of L, S after energising is also lighted fluorescent tube; The delay circuit delays that is made of capacitor C 4, resistance R 1, capacitor C 5, diode D9, integrated circuit (IC) 555 is after 5-15 seconds, the delay circuit of delayer is controlled first relay J 1, second relay J 2, fluorescent tube is switched to the operating state of the low-voltage dc power supply power supply that is made of transformer T, bridge rectifier (comprising 4 rectifier diode D1, D2, D3, D4) and filter capacitor C1.After outage was turned off the light, first relay J 1, second relay J 2 automatically restored to normally off, promptly returned to make fluorescent tube connect the starting state of AC starting power supply.
Claims (7)
1, a kind of fluorescent light fittings with DC operation comprises fluorescent tube, connects the starter and the power supply of fluorescent tube respectively, it is characterized in that described power supply comprises the startup power supply of interchange and the working power of low-voltage direct; Fluorescent light fittings comprises that also an electronic switch is connected and controls the delayer of described electronic switch with one, the input of described electronic switch connects startup power supply and working power respectively, the output of described electronic switch connects fluorescent tube, and the control end of described electronic switch connects delayer; Described electronic switch is used for fluorescent lamp starting state and conversion of operation state, and delayer is used for the time control of described state exchange.
2, the fluorescent light fittings with DC operation according to claim 1 is characterized in that the output of described electronic switch connects fluorescent tube through rectifier.
3, the fluorescent light fittings with DC operation according to claim 1 is characterized in that described startup power supply is a civil power, and described working power is the low-voltage dc power supply of civil power after transformation, rectification.
4, the fluorescent light fittings with DC operation according to claim 3 is characterized in that, described low-voltage dc power supply is made of the filter capacitor that input connects the transformer of civil power, the bridge rectifier that connects the transformer output, connection bridge rectifier.
5, the fluorescent light fittings with DC operation according to claim 1 is characterized in that, described electronic switch is that first relay and second relay are formed, and is respectively applied for the control fluorescent tube and connects the startup power supply or connect dc supply.
6, the fluorescent light fittings with DC operation according to claim 1 is characterized in that the delay circuit of described delayer is made of integrated circuit (IC) 555, and be more than 1 second the time of delay of delay circuit.
7, the fluorescent light fittings with DC operation according to claim 1 is characterized in that described starter is a neon bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201501322U CN201226613Y (en) | 2008-06-27 | 2008-06-27 | DC florescent lamp apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201501322U CN201226613Y (en) | 2008-06-27 | 2008-06-27 | DC florescent lamp apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201226613Y true CN201226613Y (en) | 2009-04-22 |
Family
ID=40599516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201501322U Expired - Fee Related CN201226613Y (en) | 2008-06-27 | 2008-06-27 | DC florescent lamp apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201226613Y (en) |
-
2008
- 2008-06-27 CN CNU2008201501322U patent/CN201226613Y/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: 20090422 Termination date: 20110627 |