Power LED lamp power supply drops in a kind of timing
Technical field
The present invention is that power LED lamp power supply drops in a kind of timing, belongs to LED power-supply device field.
Background technology
LED power is one kind of power supply, is the device providing power to electronic equipment, and also referred to as power supply unit is deployed as
Different electrical power input on equipment is connected on the independent circuits equipment with two or three power inputs.Aneroid battery etc. is also named
Do power supply;By transformator and commutator, alternating current is become galvanic device and is called rectifier power source.
In prior art, it is fitted without short current protective mechanism in traditional traditional LED power supply, leads to circuit in short circuit
When it is impossible to automatically shut down, also cannot automatic alarm, be easily caused circuit body element damage, increase production cost, Yi Jirong
Easily initiation fire, traditional LED power supply does not have timing fall power mechanism, leads to LED that a firm power is usually used
Be operated, lead to LED power supply cannot intelligent control, increase the loss of the energy, waste non-renewable energy resources, and increase
Pollution to environment.
Content of the invention
In view of the shortcomings of the prior art, it is an object of the present invention to provide power LED lamp power supply drops in a kind of timing, to solve
The problem proposing in above-mentioned background technology, the present invention is easy to use, is easy to operate, circuit can be protected, can carry out
Intelligent control, convenient disassembly, good stability, reliability is high.
To achieve these goals, the present invention is to realize by the following technical solutions:Power LED lamp drops in a kind of timing
Power supply, including housing, power supply main body, printed circuit board, expansion plate, fixed plate and fix bar, described enclosure interior installs electricity
Source main body and printed circuit board, described power supply main body upper end connects printed circuit board, and described expansion plate is arranged on housing, institute
State expansion plate left end to be connected through fixed plate with housing, described fixed plate is assemblied in housing right-hand member, symmetrical in described fixed plate
Two fix bars are installed, described fix bar lower end is connected through fixed plate with expansion plate, described circuit main body includes short circuit guarantor
Shield mechanism HV, timing fall power mechanism VK, resistance R1, resistance R2, resistance R3, filter capacitor C1, filter capacitor C2, transformator T
And LED L5, described short current protective mechanism HV, timing fall power mechanism VK, resistance R1, resistance R2, resistance R3, filter capacitor
C1 and filter capacitor C2 all welds on a printed circuit board, and described short current protective mechanism HV lower end connects resistance R1 and electricity respectively
Resistance R2, described resistance R1 lower end connects timing and drops power mechanism VK, and described resistance R1 and resistance R2 lower end are all connected with filter capacitor
C1, described filter capacitor C1 lower end connection transformer T, described transformator T lower end arranges filter capacitor C2, described filter capacitor C2
Resistance R3 is assembled in lower end, and described resistance R3 lower end mounted LED lamp L5, described short current protective mechanism HV include live wire L, zero line N, melt
Disconnected device F1, swept resistance VR1, rectifier transformer L1, electric capacity CX1, rectifier transformer L2, electric capacity CX2, wave filter U, rectifier transformer
Device L3, rectifier transformer L4, swept resistance VR2, electric capacity C5 and electric capacity C6, described fuse F1 upper end connects live wire L, slides
Resistance VR1 upper end connects zero line N, and described fuse F1 and swept resistance VR1 right-hand member are all connected with rectifier transformer L1, described rectification
Transformator L1 right-hand member connects electric capacity CX1, and described electric capacity CX1 right-hand member installs rectifier transformer L2, described rectifier transformer L2 right-hand member
Setting electric capacity CX2, described electric capacity CX2 right-hand member assembles wave filter U, described wave filter U right-hand member connect respectively rectifier transformer L3 and
Rectifier transformer L4, described rectifier transformer L3 right-hand member connect respectively swept resistance VR2, electric capacity C5, electric capacity C6, resistance R1 and
Resistance R2, described rectifier transformer L4 right-hand member connects swept resistance VR2, electric capacity C5 and electric capacity C6 respectively, and work(drops in described timing
Rate mechanism VK include diode D, resistance R4, filter capacitor C3, electric capacity C4, audion DW, pwm modulator U1M, resistance R5 and
Resistance R6, described diode D left end connects resistance R1, and described diode D right-hand member connects resistance R4 and filter capacitor C3, institute respectively
State resistance R4 right-hand member and connect electric capacity C4, audion DW and pwm modulator U1M respectively, described filter capacitor C3 lower end connects electricity
Hold C4, described electric capacity C4 lower end connecting triode DW, described audion DW right-hand member connects resistance R5, described pwm modulator U1M is right
End connects resistance R5 and resistance R6 respectively, and described resistance R6 lower end connects filter transformer T.
Further, described circuit main body is connected with earth lead.
Further, described short current protective mechanism HV is connected with display lamp, described short current protective mechanism HV is provided with
Derailing switch.
Further, described enclosure interior processing is fluted.
Further, described expansion plate right-hand member is provided with draw ring.
Further, described housing outer end is provided with rubber blanket.
Beneficial effects of the present invention:Power LED lamp power supply drops in a kind of timing of the present invention, the present invention pass through to add live wire L,
Zero line N, fuse F1, swept resistance VR1, rectifier transformer L1, electric capacity CX1, rectifier transformer L2, electric capacity CX2, wave filter U,
Rectifier transformer L3, rectifier transformer L4, swept resistance VR2, electric capacity C5 and electric capacity C6, the design achieves to circuit main body
Protected, prevent circuit main body short circuit from burning out element, improve the service life of element and the safety in utilization of circuit main body,
Solve in traditional LED power supply and be fitted without short current protective mechanism, lead to circuit in short circuit, be easily caused circuit main body
Component wear, increases production cost, and the problem of easy initiation fire.
This is using new by adding diode D, resistance R4, filter capacitor C3, electric capacity C4, audion DW, pwm modulator
U1M, resistance R5 and resistance R6, the design achieves and LED L5 is regulated and controled, and improve the utilization ratio of the energy, reduce energy
The loss in source, reduces use cost, expands promoted extension, solves traditional LED power supply and does not have timing fall power mechanism,
Lead to LED power supply cannot intelligent control, increase the loss of the energy, waste the problem of non-renewable energy resources.
Because adding housing, expansion plate, fixed plate and fix bar, the design achieves and power supply main body is held, with
When also allow for mounting and dismounting, prevent housing failure, improve the utilization ratio of housing, improve service life, solve traditional
LED outer casing of power supply is difficult to the problem dismantled.
Because adding earth lead, this design is easy to circuit main body is protected, and because adding display lamp, this design is easy to short
Road protection mechanism running is observed, and because adding derailing switch, breaking circuit is easy in this design, because adding groove, this design
It is easy to fixing expansion plate, because adding draw ring, this design is easy to pull expansion plate, and the present invention is easy to use, is easy to operate, can be right
Circuit is protected, and can carry out intelligent control, convenient disassembly, good stability, reliability is high.
Brief description
The detailed description with reference to the following drawings, non-limiting example made by reading, the further feature of the present invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the structural representation that power LED lamp power supply drops in a kind of timing of the present invention;
Fig. 2 is the circuit diagram that circuit main body in power LED lamp power supply drops in a kind of timing of the present invention;
Fig. 3 is the circuit diagram that short current protective mechanism in power LED lamp power supply drops in a kind of timing of the present invention;
Fig. 4 is that the circuit diagram regularly dropping power mechanism in power LED lamp power supply drops in a kind of timing of the present invention;
In figure:1- housing, 2- power supply main body, 3- printed circuit board, 4- expansion plate, 5- fixed plate, 6- fix bar.
Specific embodiment
Technological means, creation characteristic, reached purpose and effect for making the present invention realize are easy to understand, with reference to
Specific embodiment, is expanded on further the present invention.
Refer to Fig. 1-Fig. 4, the present invention provides a kind of technical scheme:A kind of timing drops power LED lamp power supply, including housing
1st, power supply main body 2, printed circuit board 3, expansion plate 4, fixed plate 5 and fix bar 6, housing 1 is internal install power supply main body 2 and
Printed circuit board 3, power supply main body 2 upper end connects printed circuit board 3, and expansion plate 4 is arranged on housing 1, and expansion plate 4 left end passes through
Fixed plate 5 is connected with housing 1, and fixed plate 5 is assemblied in housing 1 right-hand member, and fixed plate 5 is symmetrically installed two fix bars 6, fixing
Bar 6 lower end is connected through fixed plate 5 with expansion plate 4, and this design is easy for removal and installation.
Circuit main body includes short current protective mechanism HV, timing fall power mechanism VK, resistance R1, resistance R2, resistance R3, filtering
Electric capacity C1, filter capacitor C2, transformator T and LED L5, short current protective mechanism HV, timing fall power mechanism VK, resistance R1,
Resistance R2, resistance R3, filter capacitor C1 and filter capacitor C2 are all welded on printed circuit board 3, under short current protective mechanism HV
End connects resistance R1 and resistance R2 respectively, and resistance R1 lower end connects timing and drops power mechanism VK, and resistance R1 and resistance R2 lower end are equal
Connect filter capacitor C1, filter capacitor C1 lower end connection transformer T, transformator T lower end arranges filter capacitor C2, filter capacitor C2
Resistance R3, resistance R3 lower end mounted LED lamp L5 are assembled in lower end.
Short current protective mechanism HV includes live wire L, zero line N, fuse F1, swept resistance VR1, rectifier transformer L1, electric capacity
CX1, rectifier transformer L2, electric capacity CX2, wave filter U, rectifier transformer L3, rectifier transformer L4, swept resistance VR2, electric capacity C5
And electric capacity C6, fuse F1 upper end connects live wire L, swept resistance VR1 upper end connection zero line N, fuse F1 and swept resistance
VR1 right-hand member is all connected with rectifier transformer L1, and rectifier transformer L1 right-hand member connects electric capacity CX1, and electric capacity CX1 right-hand member installs rectifier transformer
Device L2, rectifier transformer L2 right-hand member arranges electric capacity CX2, and electric capacity CX2 right-hand member assembles wave filter U, and wave filter U right-hand member connects whole respectively
Convertor transformer L3 and rectifier transformer L4, rectifier transformer L3 right-hand member connects swept resistance VR2, electric capacity C5, electric capacity C6, electricity respectively
Resistance R1 and resistance R2, rectifier transformer L4 right-hand member connects swept resistance VR2, electric capacity C5 and electric capacity C6 respectively, and this design is real
Show and circuit main body has been protected.
Timing fall power mechanism VK includes diode D, resistance R4, filter capacitor C3, electric capacity C4, audion DW, PWM regulation
Device U1M, resistance R5 and resistance R6, diode D left end connects resistance R1, and diode D right-hand member connects resistance R4 and filtering respectively
Electric capacity C3, resistance R4 right-hand member connects electric capacity C4, audion DW and pwm modulator U1M respectively, and filter capacitor C3 lower end connects electricity
Hold C4, electric capacity C4 lower end connecting triode DW, audion DW right-hand member connects resistance R5, pwm modulator U1M right-hand member connects electricity respectively
Resistance R5 and resistance R6, resistance R6 lower end connects filter transformer T, the design achieves and LED L5 output is adjusted.
Earth lead is connected with circuit main body, short current protective mechanism HV is connected with display lamp, on short current protective mechanism HV
Derailing switch is installed, the internal processing of housing 1 is fluted, and expansion plate 4 right-hand member is provided with draw ring, and housing 1 outer end is provided with rubber blanket.
Specific embodiment:When the energising of circuit main body runs, short current protective mechanism works, and electric current is transferred to by live wire L
Fuse F1, then fuse F1 electric current is conveyed to rectifier transformer L1, then rectifier transformer L1 electric current is conveyed to whole
Convertor transformer L2 and electric capacity CX1, then rectifier transformer L2 electric current is conveyed to commutator U, then electric current is conveyed by commutator U
To circuit main body, when the short circuit of circuit main body, commutator U receives short-circuit signal and sends instruction, and electric capacity CX1 and electric capacity CX2 breaks
Open, fuse F1 quits work, the design achieves and short-circuit protection is carried out to circuit main body.
After LED L5 works four hours, pwm modulator U1M works and sends instruction, and resistance R6 numerical value becomes big, resistance
R6 voltage is constant, resistance R6 current reduction, thus reducing the output of LED L5, realizes every 18 seconds after 4 hours after energising
Clock adjusts a dutycycle, adjusts 200 times altogether, the time-consuming 50% output target reaching regulation for 1 hour, and this design is realized
LED L5 output is adjusted.
When staff installs to power supply main body 2, first by staff, power supply main body 2 is put into housing 1
Then power supply main body 2 is connected with printed circuit board 3 by electric wire, printed circuit board 3 is arranged on electricity simultaneously by inner bottom
Source main body 2 upper end, then staff hold draw ring and expansion plate 4 be sent in housing 1, then staff is pressed fix bar
6, so that fix bar 6 is mutually fixed with fixed plate 5, this design is easily installed and dismantling power main body 2.
Ultimate principle and principal character and the advantages of the present invention of the present invention have been shown and described above, for this area skill
It is clear that the invention is not restricted to the details of above-mentioned one exemplary embodiment for art personnel, and in the spirit without departing substantially from the present invention or
In the case of basic feature, the present invention can be realized in other specific forms.Therefore, no matter from the point of view of which point, all should be by
Embodiment regards exemplary as, and is nonrestrictive, the scope of the present invention by claims rather than on state
Bright restriction, it is intended that all changes in the implication and scope of the equivalency of claim that fall are included in the present invention
Interior.Any reference in claim should not be considered as limiting involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment only wraps
Containing an independent technical scheme, only for clarity, those skilled in the art should for this narrating mode of description
Using description as an entirety, the technical scheme in each embodiment can also form those skilled in the art through appropriately combined
Understandable other embodiment.