CN202852459U - LED fluorescent lamp with external driving power supply - Google Patents
LED fluorescent lamp with external driving power supply Download PDFInfo
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- CN202852459U CN202852459U CN 201220033793 CN201220033793U CN202852459U CN 202852459 U CN202852459 U CN 202852459U CN 201220033793 CN201220033793 CN 201220033793 CN 201220033793 U CN201220033793 U CN 201220033793U CN 202852459 U CN202852459 U CN 202852459U
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- light source
- driving power
- led fluorescent
- external
- fluorescent lamp
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Abstract
The utility model relates to an LED fluorescent lamp with an external driving power supply. The LED fluorescent lamp is characterized in an LED fluorescent tube includes an LED light source plate, an LED fluorescent tube housing, connectors at the two ends of the tube, and wires for connection. The LED light source plate is arranged inside the LED fluorescent tube housing, chips of the LED light source plate are serially connected, and the forward voltage drop of the serially connected LED chips is close to the stable high-voltage DC voltage value of the external driving power supply, a full-wave bridge type rectifier circuit is arranged on the LED light source plate, a galvanostat circuit is arranged on the LED light source plate to directly drive the LED light source after the current constancy of the stable high-voltage DC voltage, and the LED fluorescent tube provided allows a plurality of tubes to share one external driving power supply.
Description
Technical field
The utility model relates to the LED lighting field, relates in particular to the external LED fluorescent lamp lighting light fixture of a kind of driving power.
Background technology
The LED fluorescent lamp driving power supply divides two kinds of built-in and externals, driving power external LED fluorescent lamp generally adopts low-voltage dc power supply to drive, and the power supply service efficiency is not high, clear and upright/negative wiring that the fluorescent tube wiring must divide, the LED fluorescent lamp otherwise point does not work, even can damage the LED fluorescent tube;
Using must be careful when installing, and the user accidentally receives on the daylight lamp tray of original use civil power, and the high pressure civil power is bound to burn out the LED fluorescent tube;
The driving power constant voltage current value disunity of each LED fluorescent lamp lighting manufacturer design, the versatility of LED fluorescent tube is very poor, a kind of driving power connects the LED fluorescent tube of different manufacturers, want LED fluorescent tube point not work, want just to burn out the LED fluorescent tube, bring unnecessary loss to the user;
Above problem is unfavorable for popularizing the novel LED illumination of environmental protection, is vast electronic engineering technical staff's urgent need to solve the problem.
The utility model content
Core technology of the present utility model is: by external stable HVDC driving power driving LED fluorescent lamp, the galvanostat circuit of described LED fluorescent lamp, the stable high voltage direct current driven led light source chip that provides; The LED fluorescent structure is simple, and fluorescent tube can adopt overall plastic structure, is conducive to reduce the cost of LED fluorescent lamp, is conducive to popularize the LED illumination;
On the LED fluorescent light source plate bridge rectifier circuit can be installed, make the wiring of LED fluorescent tube regardless of positive negative wire, install and use easily; The user is connected to former using on the common fluorescent tube dish of civil power to the LED fluorescent tube because of carelessness, equally can light, and can be not damaged;
On the LED fluorescent light source plate galvanostat circuit can be installed, be connected with described rectifier circuit output, the direct current driven led light source chip that galvanostat circuit output is constant;
Described bridge rectifier circuit and galvanostat circuit also can be arranged separately on the PCB, and this PCB is placed in the back side of the light source chip of described LED fluorescent light source plate, are electrically connected with light source chip on the LED fluorescent light source plate with electric wire.
Utility model solves the technical scheme that its technical problem adopts:
The LED fluorescent lamp that a kind of driving power is external comprises:
LED fluorescent light source plate: be used for installing the led light source chip, adopt the low-voltage LED light source chip tandem compound more than tens of to form, the forward voltage depreciation of led light source chip of series connection, should close to and be not more than the magnitude of voltage of external stable HVDC driving power;
Bridge rectifier circuit: formed by integrated circuit rectifier bridge or discrete commutation diode, the bridge rectifier input is electrically connected with described external stable HVDC driving power output, bridge rectifier output and described galvanostat circuit be connected the led light source chip and be connected;
Galvanostat circuit: formed by semiconductor constant current diode or constant current triode or integrated constant current IC or electronics discrete component constant-current circuit; Described galvanostat circuit input is connected with described bridge rectifier output, and the galvanostat circuit output connects described led light source chip, and the DC current of galvanostat circuit output directly drives and lights the led light source chip;
The fluorescent tube shell: it is the aluminum hull heat radiation that the shell of fluorescent tube can adopt half, and half is the transparent plastic bright dipping; Also can adopt overall plastic structure, described LED fluorescent lamp driving power supply adopts external driving power, reduces the caloric value of LED fluorescent tube inside;
Two end connectors and connecting line: described LED fluorescent lamp is connected with external power supply by two end connectors, is connected with two input wires of the bridge rectifier of described LED fluorescent light source plate by conductive connecting or contact pin.
Described bridge rectifier circuit and galvanostat circuit, can be directly installed on the same face of the described led light source chip on the described LED fluorescent light source plate, also can be directly installed on the back side of described LED fluorescent light source plate, also can be arranged separately on the PCB, PCB is placed in the back side of the led light source chip of described LED fluorescent light source plate, is electrically connected with the led light source chip of LED fluorescent light source plate with electric wire.
External driving power is stable HVDC driving power, described external stable HVDC driving power output is connected to two end connectors of described LED fluorescent lamp, and the galvanostat circuit of fluorescent lamp inside provides the high-voltage direct current of continous-stable to drive and lights described led light source chip; At this moment the magnitude of voltage of described external stable HVDC driving power can close to or be higher than the virtual value of this territory of use's line voltage, but the led light source chip forward voltage values after the series connection approaches and is not higher than the magnitude of voltage of described external stable HVDC driving power; There is bridge rectifier circuit LED fluorescent lamp inside, can be regardless of positive and negative during two end connector wiring of described external stable HVDC driving power and described LED fluorescent lamp; When adopting external stable HVDC driving power, the DC current that drives described led light source chip be stablize, continuous continual current work state.
The bridge rectifier circuit of the LED fluorescent lamp that described a kind of driving power is external and galvanostat circuit can not use electrolytic capacitor and electronics high frequency transformer, to eliminate electrolytic capacitor short problem in service life, to get rid of the problem of the heating of electronics high frequency transformer and generation High-frequency Interference.
Described LED fluorescent tube more than one can share same described external stable HVDC driving power.
The LED fluorescent lamp that described driving power is external can comprise whole described features, also can be to comprise the described feature of part, and described driving power external LED fluorescent structure principle also can be used for other LED lighting lamp structure devices.
Description of drawings
Fig. 1 is embodiment of the utility model, the LED fluorescent lamp basic circuit diagram that a kind of driving power is external;
Fig. 2 is embodiment of the utility model, the LED fluorescent lamp basic circuit diagram that directly drives with civil power;
Fig. 3 is embodiment of the utility model, a kind of assembling schematic diagram of LED fluorescent light source plate.
The specific embodiment
By describe in detail technology contents of the present utility model, as a result feature, realized purpose and effect, below in conjunction with embodiment and cooperate accompanying drawing to give in detail explanation.
With reference to figure 1, embodiment of LED fluorescent lamp that a kind of driving power described in the utility model is external is characterized in that:
Make driving power with external stable HVDC driving power 3, be connected to the input of described LED fluorescent lamp 6, the galvanostat circuit 4 of fluorescent lamp inside provides the high-voltage direct current of continous-stable to drive and lights described led light source chip 5; At this moment the magnitude of voltage of external stable HVDC driving power 3 can close to and be not higher than the amplitude of this territory of use's line voltage 1, but the forward voltage values of the led light source chip 5 of tandem compound should close to and be not higher than the output voltage values of described external stable HVDC driving power 3; There is bridge rectifier 2 LED fluorescent lamp 6 inside, can be regardless of positive and negative when external stable HVDC driving power 3 and described LED fluorescent lamp 6 wiring; When adopting external stable HVDC driving power 3 to drive, the DC current that drives described led light source chip 5 be stablize, continuous continual current work state, the light efficiency of LED fluorescent lamp 6 is stable.
With reference to figure 2, embodiment of LED fluorescent lamp that a kind of driving power described in the utility model is external is characterized in that:
After described bridge rectifier 2 is rectified entirely, send described galvanostat circuit 4 constant currents with civil power 1 (input AC sinusoidal voltage), provide high-voltage direct current directly to drive described led light source chip 5; The forward voltage drop value of used led light source chip 5 should close to and be not higher than the amplitude of the used line voltage 1 in this area.
With reference to figure 3, embodiment of LED fluorescent lamp that a kind of driving power described in the utility model is external is characterized in that:
Led light source chip 5, bridge rectifier 2, galvanostat circuit 4 are installed on the LED fluorescent lamp substrate 7, reach the lead contact 8 and 9 that is connected with external power supply; Described bridge rectifier 2 and galvanostat circuit 4 are installed in respectively the two ends of LED substrate 7, also can be installed on other suitable positions, only otherwise affecting sending of led chip light gets final product; The output of external stable HVDC driving power and lead contact 8 are connected logically with being connected, and described stable HVDC driving power provides galvanic current stream to drive and lights led chip 5 through bridge rectifier 2 and galvanostat circuit 4 constant currents.
Being wherein a kind of version in the mounting means with reference to figure 3, is not to be to limit as mounting structure of the present utility model.
Although more than described the specific embodiment that illustrates more of the present utility model, but those of ordinary skill in the art is to be understood that, these only illustrate, and can make various changes or modifications to these embodiment, and not deviate from principle of the present utility model and essence.Scope of the present utility model is only limited by appended claims.
Above embodiment illustrates the utility model, but not as restriction of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, modification, the change of above embodiment.
Claims (5)
1. LED fluorescent lamp that driving power is external is characterized in that:
The LED fluorescent lamp that a kind of driving power is external comprises:
LED fluorescent light source plate: be used for installing the led light source chip, adopt the low-voltage LED light source chip tandem compound more than tens of to form, the forward voltage depreciation of led light source chip of series connection, should close to and be not more than the magnitude of voltage of external stable HVDC driving power;
Bridge rectifier circuit: formed by integrated circuit rectifier bridge or discrete commutation diode, the bridge rectifier input is electrically connected with described external stable HVDC driving power output, bridge rectifier output and described galvanostat circuit be connected the led light source chip and be connected;
Galvanostat circuit: formed by semiconductor constant current diode or constant current triode or integrated constant current IC or electronics discrete component constant-current circuit; Described galvanostat circuit input is connected with described bridge rectifier output, and the galvanostat circuit output connects described led light source chip, and the DC current of galvanostat circuit output directly drives and lights the led light source chip;
The fluorescent tube shell: it is the aluminum hull heat radiation that the shell of fluorescent tube can adopt half, and half is the transparent plastic bright dipping; Also can adopt overall plastic structure, described LED fluorescent lamp driving power supply adopts external driving power, reduces the caloric value of LED fluorescent tube inside;
Two end connectors and connecting line: described LED fluorescent lamp is connected with external power supply by two end connectors, is connected with two input wires of the bridge rectifier of described LED fluorescent light source plate by conductive connecting or contact pin.
2. the external LED fluorescent lamp of a kind of driving power as claimed in claim 1 is characterized in that:
Described bridge rectifier circuit and galvanostat circuit, can be directly installed on the same face of the described led light source chip on the described LED fluorescent light source plate, also can be directly installed on the back side of described LED fluorescent light source plate, also can be arranged separately on the PCB, PCB is placed in the back side of the led light source chip of described LED fluorescent light source plate, is electrically connected with the led light source chip of LED fluorescent light source plate with electric wire.
3. the external LED fluorescent lamp of a kind of driving power as claimed in claim 1 is characterized in that:
External driving power is stable HVDC driving power, described external stable HVDC driving power output is connected to two end connectors of described LED fluorescent lamp, and the galvanostat circuit of fluorescent lamp inside provides the high-voltage direct current of continous-stable to drive and lights described led light source chip; At this moment the magnitude of voltage of described external stable HVDC driving power can close to or be higher than the virtual value of this territory of use's line voltage, but the led light source chip forward voltage values after the series connection approaches and is not higher than the magnitude of voltage of described external stable HVDC driving power; There is bridge rectifier circuit LED fluorescent lamp inside, can be regardless of positive and negative during two end connector wiring of described external stable HVDC driving power and described LED fluorescent lamp; When adopting external stable HVDC driving power, the DC current that drives described led light source chip be stablize, continuous continual current work state.
4. the external LED fluorescent lamp of a kind of driving power as claimed in claim 1 is characterized in that:
The bridge rectifier circuit of the LED fluorescent lamp that described a kind of driving power is external and galvanostat circuit can not use electrolytic capacitor and electronics high frequency transformer, to eliminate electrolytic capacitor short problem in service life, to get rid of the problem of the heating of electronics high frequency transformer and generation High-frequency Interference.
5. the external LED fluorescent tube of a kind of driving power as claimed in claim 1 is characterized in that:
Described LED fluorescent tube more than one can share same described external stable HVDC driving power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220033793 CN202852459U (en) | 2012-02-03 | 2012-02-03 | LED fluorescent lamp with external driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220033793 CN202852459U (en) | 2012-02-03 | 2012-02-03 | LED fluorescent lamp with external driving power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202852459U true CN202852459U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220033793 Expired - Fee Related CN202852459U (en) | 2012-02-03 | 2012-02-03 | LED fluorescent lamp with external driving power supply |
Country Status (1)
| Country | Link |
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| CN (1) | CN202852459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244836A (en) * | 2012-02-03 | 2013-08-14 | 深圳市比格利电源科技有限公司 | Light-emitting diode (LED) fluorescent lamp with external driving power supply |
-
2012
- 2012-02-03 CN CN 201220033793 patent/CN202852459U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244836A (en) * | 2012-02-03 | 2013-08-14 | 深圳市比格利电源科技有限公司 | Light-emitting diode (LED) fluorescent lamp with external driving power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: BigLED Power Supply Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20140203 |
|
| EXPY | Termination of patent right or utility model |