CN207783211U - A kind of direct-current LED fluorescent lamp tool - Google Patents
A kind of direct-current LED fluorescent lamp tool Download PDFInfo
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- CN207783211U CN207783211U CN201721881825.4U CN201721881825U CN207783211U CN 207783211 U CN207783211 U CN 207783211U CN 201721881825 U CN201721881825 U CN 201721881825U CN 207783211 U CN207783211 U CN 207783211U
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- fluorescent lamp
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The utility model discloses a kind of direct-current LED fluorescent lamp tools, including：The both ends of lamp outer casing, the lamp outer casing are respectively arranged with load positive terminal and load negative pole end, and the load positive terminal is used for input direct-current electric current for exporting DC current, the load negative pole end；DC power supply terminal, including power positive end and power cathode end, the power positive end are connect with the load positive terminal, and the power cathode end is connect with the load negative pole end, and the DC power supply terminal is for exporting DC current.The utility model exports DC current by DC power supply terminal, and DC current forms closed circuit from load positive terminal and load negative pole end, worked with direct current driven LED daylight lamp, avoid electric arc caused by the ballast of alternating current circuit and electromagnetic induction.
Description
Technical field
The utility model embodiment is related to fluorescent lamp field more particularly to a kind of direct-current LED fluorescent lamp tool.
Background technology
LED (Light-Emitting Diode, light emitting diode) light source has luminous efficiency high, and power saving is environmentally friendly and makes
The advantages that with long lifespan, it is increasingly being applied to illumination field.LED daylight lamp is a kind of common LED light source.
Existing LED daylight lamp lamps and lanterns usually require incoming transport electricity, are worked with exchange electric drive LED daylight lamp, therefore,
When opening or closing fluorescent lamp, ballast will produce electric arc and electromagnetic interference.If this LED daylight lamp is applied to electromagnetism
In the environment of device, the startup of fluorescent lamp can generate electromagnetic device signal interference, or even influence the normal work of equipment.
Therefore, the utility model proposes a kind of LED daylight lamp lamps and lanterns, electromagnetism is generated when LED daylight lamp can be avoided to start
The phenomenon that interference.
Utility model content
The utility model provides a kind of direct-current LED fluorescent lamp tool, the electric arc and electricity generated when to avoid fluorescent start
Magnetic disturbance.
The utility model embodiment proposes a kind of direct-current LED fluorescent lamp tool, including：
The both ends of lamp outer casing, the lamp outer casing are respectively arranged with load positive terminal and load negative pole end, the load
Positive terminal is used for input direct-current electric current for exporting DC current, the load negative pole end；
DC power supply terminal, including power positive end and power cathode end, the power positive end and the load positive terminal
Connection, the power cathode end is connect with the load negative pole end；
Anti- inversion protection circuit, connect with DC power supply terminal, for preventing circuit reverse-conducting；
Integrated circuit, the input terminal of the integrated circuit are connect with the anti-inversion protection circuit, described anti-for receiving
The electric current of inversion protection circuit, the output end of the integrated circuit is for exporting DC current；
Regulator circuit is connect with the integrated circuit, the voltage for stablizing the DC current.
Further, the DC power supply terminal includes rectification circuit and filter circuit；
The rectification circuit is connect with AC power, for input AC electric current and exports DC current；
The filter circuit is in parallel with the rectification circuit, for filtering out the alternating current ingredient in the DC current.
Further, the rectification circuit is full-bridge circuit.
Further, the filter circuit includes the first filter circuit, first filter circuit and the rectification circuit
DC output end connected with direct-flow input end；
First filter circuit includes the first filter capacitor and the second filter capacitor；
First filter capacitor and second filter capacitor are in parallel.
Further, the anti-inversion protection circuit includes the first transistor and second transistor；
The collector of the first transistor is connect with the DC output end of the rectification circuit, the first transistor
Base stage is connect with the collector of the second transistor, and the base stage of the second transistor and the direct current of the rectification circuit input
End connection；
The emitter of the first transistor and the second transistor is connect with the integrated circuit.
Further, the regulator circuit includes zener diode；
The input terminal of the zener diode is connect with the output end of the integrated circuit, the output of the zener diode
End is connect with the direct-flow input end of the rectification circuit.
Further, the filter circuit further includes the second filter circuit, second filter circuit and the integrated electricity
The direct-flow input end of the output end on road and the rectification circuit connects；
Second filter circuit includes third filter capacitor.
Further, further include built-in supporting rack, the built-in supporting rack is located on the lamp outer casing, is used to support institute
State the structure of lamp outer casing.
Further, further include switch, the switch is located on the lamp outer casing, for controlling direct-current LED fluorescent lamp
Whether work.
Further, further include hanging feet, the hanging feet includes two hanging feets, is located at lamp outer casing both ends, for solid
The fixed direct-current LED fluorescent lamp tool.
The utility model exports DC current by DC power supply terminal, and DC current is from load positive terminal and loads negative pole end
Closed circuit is formed, is worked with direct current driven LED daylight lamp, avoids electric arc caused by the ballast of alternating current circuit and electricity
Magnetic induction.
Description of the drawings
Fig. 1 is the load positive terminal and the structural schematic diagram for loading negative pole end that the utility model embodiment provides；
Fig. 2 is the electrical block diagram that the utility model embodiment provides；
Fig. 3 is the structural schematic diagram for the full-bridge circuit that the utility model embodiment provides；
Fig. 4 is the shell mechanism for the LED daylight lamp lamps and lanterns that the utility model embodiment provides.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, it illustrates only for ease of description, in attached drawing and the relevant part of the utility model rather than entire infrastructure.
Fig. 1 is the load positive terminal that the utility model embodiment provides and the structural schematic diagram for loading negative pole end, Fig. 2 are these
The electrical block diagram that utility model embodiment provides.Referring to Fig.1 and 2, the LED days that the utility model embodiment provides
Light lamp lamps and lanterns include：The both ends of lamp outer casing, the lamp outer casing are respectively arranged with load positive terminal 11 and load negative pole end 12,
The load positive terminal 11 is used for input direct-current electric current for exporting DC current, the load negative pole end 12；
DC power supply terminal 20, including power positive end and power cathode end, power positive end are connect with load positive terminal 11,
Power cathode end is connect with load negative pole end 12, and DC power supply terminal 20 is for exporting DC current；
Anti- inversion protection circuit 23 is connect with DC power supply terminal 21, for preventing circuit reverse-conducting；
Integrated circuit 24, the input terminal of integrated circuit 24 are connect with anti-inversion protection circuit 23, are protected for receiving anti-inversion
The electric current of protection circuit 23, the output end of integrated circuit 24 is for exporting DC current；
Regulator circuit 25 is connect with integrated circuit 24, is used for the voltage of stable DC electric current.
The alternating current of extraneous power input can be converted to DC current by DC power supply terminal 20, by integrated circuit 24
And regulator circuit 25 etc., output stable DC flow to load positive terminal 11 and load negative pole end 12, utilize DC current
LED daylight lamp can be driven to work.
The utility model embodiment exports DC current by DC power supply terminal, and DC current is from load positive terminal and load
Negative pole end forms closed circuit, is worked with direct current driven LED daylight lamp, avoids electric caused by the ballast of alternating current circuit
Arc and electromagnetic induction.
Further, referring to FIG. 2, DC power supply terminal 20 may include rectification circuit 21 and filter circuit 22；Rectified current
Road 21 is connect with AC power, for input AC electric current and exports DC current；Filter circuit 22 is in parallel with rectification circuit 21,
For filtering out the alternating current ingredient in DC current.Ideally, after rectifier circuit rectifies, alternating current can be complete
Become DC current entirely, that is to say, that will ideally not include alternating current ingredient in the DC current after rectification.But
In practical application, often there is a small amount of alternating component in the electric current after over commutation, it is therefore desirable to use filter circuit into one
Step eliminates the alternating component in circuit.The characteristics of filter circuit, is that alternating current can pass through, and DC current cannot, because
This, after filtered circuit, the alternating component in electric current will further decrease.
Fig. 3 is the structural schematic diagram for the full-bridge circuit that the utility model embodiment provides.Further, please refer to Fig.2 and
Fig. 3, rectification circuit 21 can be full-bridge circuit.Specifically, full-bridge circuit includes 4 diodes, and 4 diodes connect into " bridge "
Formula structure, when the alternating current that full-bridge circuit receives is the directions I1 in Fig. 3, diode D1 and D4 in full-bridge circuit can be with
Conducting, D1, D4 and load can form the closed circuit of conducting, and the electric current in load is along the directions D1；When full-bridge circuit receives
Alternating current be I1 in Fig. 3 negative direction when, diode D2 and D3 in full-bridge circuit can be connected, and D2, D3 and load can
To form the closed circuit of conducting, the electric current in load is still along the directions D1.Therefore, it using full-bridge circuit, may be implemented exchange
Circuit becomes DC current.
Further, Fig. 2 is please referred to, filter circuit 22 includes the first filter circuit, the first filter circuit and rectification circuit
21 DC output end is connected with direct-flow input end；First filter circuit includes the first filter capacitor C1 and the second filter capacitor
C2；First filter capacitor and second filter capacitor are in parallel.Optionally, the capacitance of C1 is the capacitance of 47 μ F, C2
For 10 μ F.Capacitance can play the role of " logical exchange, hinder direct current ", to which the alternating component in circuit is filtered out.Further,
Can also include resistance R1 between C1 and C2；Illustratively, resistance R1 can be 120 Ω.R1 can make to protect between C1 and C2
Conducting is held, the pole plate that C1 and C2 are connect with the DC output end of rectification circuit 21 potential having the same is made.
Further, anti-inversion protection circuit 23 includes the first transistor VT1 and second transistor VT2；The first transistor
The collector of VT1 is connect with the DC output end of rectification circuit 21, and the base stage of the first transistor VT1 is with second transistor VT2's
Collector connects, and the base stage of second transistor VT2 is connect with the direct-flow input end of rectification circuit 21；The first transistor VT1 and
The emitter of two-transistor VT2 is connect with the integrated circuit.Optionally, in the base stage and rectified current of second transistor VT2
Can also include resistance R2 between the direct-flow input end on road 21；Wherein the resistance value of R2 can be 120 Ω.R2 can make the second crystal
Keep certain voltage difference between pipe VT2 and the base stage and collector of the first transistor VT1, and make second transistor VT2 and
The first transistor VT1 is in the conduction state in normal work, and the electric current flowed out from the current output terminal of rectification circuit 21 passes through
After anti-inversion protection circuit 23, integrated circuit 24 is flowed to.But when abnormal conditions occurs in circuit, backward voltage needs to make the first crystalline substance
Body pipe VT1 and second transistor VT2 are simultaneously turned on, and circuit can just form reversed closed circuit, but under normal circumstances, reversed electricity
Pressure is difficult so that the first transistor VT1 and second transistor VT2 is simultaneously turned on, therefore ensure that circuit will not be formed reversed closed time
Road.
Further, it since the alternating current before rectification is generally sinusoidal current signal, is exported after flowing through rectification circuit 21
DC current still be waveform DC current.And waveform DC current can be further rectified into voltage stabilization by integrated circuit 24
Electric current.Illustratively, the voltage of the DC current of 23 output end of integrated circuit output can be 36V.In 24 He of integrated circuit
Further include resistance R3 between the input terminal of rectification circuit, optionally, the resistance value of R3 can be 10 Ω.
Optionally, the rectification circuit 21 that the utility model embodiment provides can connect the AC power of 100~300V.When
When the voltage fluctuation of extraneous AC power is bigger, the voltage of the DC current after 21 rectification of rectification circuit still can wave
It is dynamic bigger, if such DC current is directly delivered to LED daylight lamp, the lamp bead of LED daylight lamp may be damaged.But
The presence of integrated circuit 25 can to avoid the generation of such case, due to integrated circuit 25 can voltage stabilization in 36V, because
The LED daylight lamp lamps and lanterns that this utility model embodiment provides can work in the larger environment of voltage fluctuation.Alternatively, even if
It is in other countries, when normal voltage is not 220V, the LED daylight lamp lamps and lanterns that the utility model embodiment provides are still
It can be used normally, the lamps and lanterns is made to possess extensive use scope.
Further, Fig. 2 is please referred to, regulator circuit 25 includes zener diode；The input terminal of zener diode with it is described
The output end of integrated circuit connects, and the output end of zener diode is connect with the direct-flow input end of the rectification circuit.LED daylight
Lamp generally comprises multiple concatenated lamp beads, stable voltage is needed when working due to LED daylight lamp, voltage is too high, be easy to cause
The lamp bead of LED daylight lamp is damaged, and voltage is too low, influences the light emission luminance of LED daylight lamp, therefore, in order to make from integrated circuit 24
The electric current of current output terminal output there is stable voltage, need that zener diode is arranged in circuit.Under normal circumstances, surely
Pressure diode can make the voltage stabilization in circuit in ± 0.7V, i.e. the fluctuation range of voltage is less than 1.4V.
Further, please continue to refer to Fig. 2, filter circuit 22 further includes the second filter circuit 26, the second filter circuit 26
It is connect with the direct-flow input end of the output end of integrated circuit 24 and rectification circuit 21；Second filter circuit 27 is filtered including third
Capacitance C3.Optionally, the capacitance of third filter capacitor C3 can be 0.22 μ F；Third filter capacitor can further filter out electricity
Alternating component in road.Third filter capacitor is in parallel with load LED daylight lamp lamp group, is filtered out in electric current through third filter capacitor
After alternating component, remaining DC current can be used for driving the work of LED daylight lamp lamp group.
Fig. 4 is the shell mechanism for the LED daylight lamp lamps and lanterns that the utility model embodiment provides.Further, figure is please referred to
4, the LED daylight lamp lamps and lanterns that the utility model embodiment provides further include built-in supporting rack 12, and 12 framves of built-in support are located at described
On lamp outer casing, it is used to support the structure of the lamp outer casing.Optionally, lamp outer casing can be steel shell, Inner standpipe
12 may include at least two groups Inner standpipe, between Inner standpipe and lamp outer casing can by screw connection or welding, therefore,
Inner standpipe can make lamp outer casing have more stable structure, can avoid because lamp outer casing structural instability and caused by therefore
Barrier.
Further, Fig. 4 is please referred to, the LED daylight lamp lamps and lanterns that the utility model embodiment provides further include switch 13；It opens
It closes 13 to be located on lamp outer casing, whether for controlling the work of direct-current LED fluorescent lamp.Optionally, switch 13 can be mechanical switch,
It may be audio-switch.When switch 13 is closed, anode and the cathode conducting of LED daylight lamp, LED daylight lamp can normally be sent out
Light；When switch 13 disconnects, anode and the cathode open circuit of LED daylight lamp, LED daylight lamp do not shine.
Further, Fig. 4 is please referred to, the LED daylight lamp lamps and lanterns that the utility model embodiment provides further include hanging feet 14；It hangs
Foot 14 includes two hanging feets, lamp outer casing both ends is located at, for fixing direct-current LED fluorescent lamp tool.It can by hanging feet 14
Be fixed on suitable position with lamp outer casing, for example, can by lamp outer casing be fixed to house at the top of ceiling on or handle
It is first-class that lamp outer casing is fixed on vertical wall.
Optionally, on the lamp outer casing of side that LED daylight lamp is placed in lamp outer casing, it is also provided with built-in astigmatism
Plate.The light of astigmatism plate side built in directive generates diffusing reflection when built-in astigmatism plate can shine to LED daylight lamp, improves LED days
Visual sense of beauty when light lamp shines.
Alternating current, direct current is converted into using rectification circuit by the LED daylight lamp lamps and lanterns that the utility model embodiment provides
Electric current, and the alternating component in DC current is filtered out using the first filter circuit and the second filter circuit, utilize integrated circuit handle
The voltage stabilization of DC current further stablizes the electric current for being delivered to load LED daylight lamp using zener diode in 36V
Voltage prevents circuit from forming the reverse closed circuit of electric current, has reached and utilized direct current driven using anti-inversion protection circuit
The effect of LED daylight lamp electric current, the electric arc and electromagnetism that ballast when avoiding practical alternating current driving LED daylight lamp generates
Interference.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, can carry out for a person skilled in the art various bright
Aobvious variation is readjusted and is substituted without departing from the scope of protection of the utility model.Therefore, although passing through above example
The utility model is described in further detail, but the utility model is not limited only to above example, is not departing from
Can also include other more equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Right determine.
Claims (10)
1. a kind of direct-current LED fluorescent lamp tool, which is characterized in that including：
The both ends of lamp outer casing, the lamp outer casing are respectively arranged with load positive terminal and load negative pole end, the load anode
End is used for input direct-current electric current for exporting DC current, the load negative pole end；
DC power supply terminal, including power positive end and power cathode end, the power positive end are connect with the load positive terminal,
The power cathode end is connect with the load negative pole end, and the DC power supply terminal is for exporting DC current；
Anti- inversion protection circuit, connect with DC power supply terminal, for preventing circuit reverse-conducting；
Integrated circuit, the input terminal of the integrated circuit are connect with the anti-inversion protection circuit, for receiving the anti-inversion
The electric current of circuit is protected, the output end of the integrated circuit is for exporting DC current；
Regulator circuit is connect with the integrated circuit, the voltage for stablizing the DC current.
2. direct-current LED fluorescent lamp tool according to claim 1, which is characterized in that the DC power supply terminal includes rectification
Circuit and filter circuit；
The rectification circuit is connect with AC power, for input AC electric current and exports DC current；
The filter circuit is in parallel with the rectification circuit, for filtering out the alternating current ingredient in the DC current.
3. direct-current LED fluorescent lamp tool according to claim 2, which is characterized in that the rectification circuit is full-bridge circuit.
4. direct-current LED fluorescent lamp tool according to claim 2, which is characterized in that the filter circuit includes the first filter
Wave circuit, first filter circuit are connect with the DC output end of the rectification circuit and direct-flow input end；
First filter circuit includes the first filter capacitor and the second filter capacitor；
First filter capacitor and second filter capacitor are in parallel.
5. direct-current LED fluorescent lamp tool according to claim 4, which is characterized in that the anti-inversion protection circuit includes
The first transistor and second transistor；
The collector of the first transistor is connect with the DC output end of the rectification circuit, the base stage of the first transistor
It is connect with the collector of the second transistor, the base stage of the second transistor and the direct-flow input end of the rectification circuit connect
It connects；
The emitter of the first transistor and the second transistor is connect with the integrated circuit.
6. direct-current LED fluorescent lamp tool according to claim 4, which is characterized in that the regulator circuit includes voltage stabilizing two
Pole pipe；
The input terminal of the zener diode is connect with the output end of the integrated circuit, the output end of the zener diode with
The direct-flow input end of the rectification circuit connects.
7. direct-current LED fluorescent lamp tool according to claim 4, which is characterized in that the filter circuit further includes second
Filter circuit, second filter circuit connect with the output end of the integrated circuit and the direct-flow input end of the rectification circuit
It connects；
Second filter circuit includes third filter capacitor.
8. direct-current LED fluorescent lamp tool according to claim 1, which is characterized in that further include built-in supporting rack, it is described interior
It sets supporting rack to be located on the lamp outer casing, is used to support the structure of the lamp outer casing.
9. direct-current LED fluorescent lamp tool according to claim 1, which is characterized in that further include switch, the switch is located at
On the lamp outer casing, whether for controlling the work of direct-current LED fluorescent lamp.
10. direct-current LED fluorescent lamp tool according to claim 1, which is characterized in that further include hanging feet；The hanging feet packet
Two hanging feets are included, lamp outer casing both ends are located at, for fixing the direct-current LED fluorescent lamp tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721881825.4U CN207783211U (en) | 2017-12-28 | 2017-12-28 | A kind of direct-current LED fluorescent lamp tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721881825.4U CN207783211U (en) | 2017-12-28 | 2017-12-28 | A kind of direct-current LED fluorescent lamp tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207783211U true CN207783211U (en) | 2018-08-28 |
Family
ID=63225304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721881825.4U Active CN207783211U (en) | 2017-12-28 | 2017-12-28 | A kind of direct-current LED fluorescent lamp tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207783211U (en) |
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2017
- 2017-12-28 CN CN201721881825.4U patent/CN207783211U/en active Active
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