CN205859628U - A kind of low-power consumption can the constant-current LED light bar of cutting - Google Patents
A kind of low-power consumption can the constant-current LED light bar of cutting Download PDFInfo
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- CN205859628U CN205859628U CN201620546262.2U CN201620546262U CN205859628U CN 205859628 U CN205859628 U CN 205859628U CN 201620546262 U CN201620546262 U CN 201620546262U CN 205859628 U CN205859628 U CN 205859628U
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Abstract
The utility model discloses a kind of low-power consumption can the constant-current LED light bar of cutting, circuit board including strip, circuit on circuit boards, parcel circuit board and the shell of circuit are set, circuit includes the positive and negative electrode interface connecting external dc power, constant-current circuit, the LED group being connected between anode interface and constant-current circuit；Each LED group all includes current sampling resistor and several LED of series connection, and each LED group gathers setting, leaves the gap being easy to cutting between adjacent LED lamp group, and the outer surface in the corresponding described gap of described shell is labeled with cutting position icon；This utility model can be according to field demand cutting, by every 50MM mono-section, the cutting of whole section whole section；Because power supply has constant current function, the thermal losses of circuit is made to reduce by 15%；Higher by 15% than constant voltage soft light bar with going out light in the case of power, simultaneously as be constant-current driving, after cutting light bar length, luminosity will not be impacted by the pressure drop on circuit, thus luminous uniform.
Description
Technical field
This utility model relates to LED, particularly relate to a kind of power consumption relatively low, in use can be long according to field demand cutting
The constant-current LED light bar of degree.
Background technology
LED is because its energy consumption advantage low, life-span length is loved by the people, and market development goes out variously-shaped style
LED.Wherein the LED of strip is used for product showcase, StoreFront door head, ultrathin lamp box backlight, hotel's KTV setting, family
Outer brightening, household variola, furred ceiling entry decoration etc..Existing LED is fixed length, needs to buy phase according to on-the-spot demand
Answer the light bar of length, bring very big inconvenience to buying and installation；The most existing light bar use constant pressure control system, resistance with
LED is connected, and circuit loss is big, and has pressure drop to easily cause non-uniform light on circuit, along with the lengthening brightness meeting of lamp bar
More and more lower.Therefore market need badly exploitation a kind of low in energy consumption, the constant-current LED light bar of cutting length can be carried out according to field demand.
Utility model content
This utility model is intended to solve the problems referred to above of prior art, propose a kind of power consumption the lowest, in use can basis
The constant-current LED light bar of field demand cutting length.
For solving above-mentioned technical problem, the technical scheme that the utility model proposes be design a kind of low-power consumption can the perseverance of cutting
Stream LED, including the circuit board of strip, arranges circuit on circuit boards, parcel circuit board and the shell of circuit, described
Circuit includes the positive and negative electrode interface connecting external dc power, is connected to the constant-current circuit between positive and negative electrode interface, is connected to
LED group between anode interface and constant-current circuit；Each LED group all includes the current sampling resistor that is sequentially connected in series and some
Individual LED, wherein current sampling resistor one terminate described anode interface, another terminate the first common port, the first common port is to perseverance
Current circuit feedback sample current value, each LED group connects the second common port away from one end of sampling resistor, and the second common port passes through
Blood pressure lowering choke induction connects constant-current circuit；Each LED group gathers setting, leaves and be easy between cutting between adjacent LED lamp group
Gap, the outer surface in the corresponding described gap of described shell is labeled with cutting position icon；Described constant-current circuit is by described sampling
The LED group quantity that current value perception accesses, provides current constant control to LED group.
Described constant-current LED light bar two ends are all provided with positive and negative electrode interface, and the interface of LED one end can be with the other end
Interface grafting, the interface at two ends is interconnected by the circuit on circuit board.
Described constant-current circuit uses voltage-dropping type constant current chip, and the power end of constant current chip connects described anode interface, is somebody's turn to do
Being connected shunt capacitance between power end with described negative pole interface, the ground end of constant current chip connects described negative pole interface, constant current chip
Switch terminals connect described blood pressure lowering choke induction one end, this blood pressure lowering choke induction another terminate described second common port, institute
Stating switch terminals and connect two poles to forward between power end, the current sample end of constant current chip connects described first common port.
Described external dc power uses 12 volts of DC sources.
Described constant current chip model is PT4115.
Compared with prior art, this utility model can be according to field demand cutting, by every 50MM mono-section, the sanction of whole section whole section
Cut；Because power supply has constant current function, the thermal losses of circuit is made to reduce by 15%；With going out light in the case of power than constant voltage soft light bar
High by 15%, simultaneously as be constant-current driving, after cutting light bar length, luminosity will not be impacted by the pressure drop on circuit, institute
Uniform with luminescence.
Accompanying drawing explanation
Fig. 1 is the theory diagram of this utility model preferred embodiment；
Fig. 2 is the circuit diagram of this utility model preferred embodiment；
Fig. 3 is the product appearance schematic diagram of this utility model preferred embodiment.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is described in further detail this utility model.Should be appreciated that specific embodiment described herein is used only for explaining this
Utility model, is not used to limit this utility model.
This utility model disclose a kind of low-power consumption can the constant-current LED light bar of cutting, including the circuit board of strip, be arranged on
Circuit, parcel circuit board and the shell of circuit on circuit board, described circuit includes the positive and negative electrode connecting external dc power
Interface, is connected to the constant-current circuit between positive and negative electrode interface, the LED group being connected between anode interface and constant-current circuit.Ginseng
Seeing the theory diagram shown in Fig. 1, external dc power can use constant voltage source, converts backward LED group through constant-current circuit
Constant current source is provided, is beneficial to when LED group quantity increases and decreases have stable constant current output, make LED group luminous uniformly.
Referring to the circuit diagram shown in Fig. 2, each LED group all include the current sampling resistor that is sequentially connected in series and several
LED.It is 3 LED series connection in the preferred embodiment, totally 10 groups of LED groups.In Fig. 2, current sampling resistor is with LED successively
Series connection, current sampling resistor one terminate described anode interface, another terminate the first common port COM1, the first common port is to Constant Electric Current
Road feedback sample current value, each LED group connects the second common port COM2 away from one end of sampling resistor, and the second common port passes through
Blood pressure lowering choke induction L1 connects constant-current circuit.Referring to the product appearance schematic diagram shown in Fig. 3, each LED group 3 gathers setting,
Leave the gap being easy to cutting between adjacent LED lamp group, the outer surface in the corresponding described gap of described shell is labeled with cutting position
Put icon 5 (cutting position icon can be lines can also be word)；Described constant-current circuit is by described sampled current value sense
Know the LED group quantity of access, provide current constant control to LED group.One group of LED group is a length of in the preferred embodiment
50MM, the most whole group of cutting of LED group, during cutting, the sampled current value in group is cut out the most in the lump and is gone, the parallel connection of each sampled current value
Resistance value reduces, and sampled current value reduces, and constant-current circuit controls constant current output according to the sampled current value of feedback, makes LED group
Luminous constant homogeneous.
Referring to Fig. 3, in the preferred embodiment, described LED two ends are all provided with positive and negative electrode interface, LED one end
Interface can be with the interface grafting of the other end, and the interface at two ends is interconnected by the circuit on circuit board.So be easy to by two (or
Multiple) LED series connection grafting get up to form longer light belt.
Referring to Fig. 2, in the preferred embodiment, described constant-current circuit uses voltage-dropping type constant current chip, the electricity of constant current chip
Source (VIN) connects described anode interface, this power end is connected shunt capacitance C1 between described negative pole interface, constant current chip
Ground end (GND) connects described negative pole interface, and the switch terminals (SW) of constant current chip connects one end of described blood pressure lowering choke induction L1,
Another of this blood pressure lowering choke induction terminates described second common port, and switch terminals is the drain terminal of constant current chip internal power switch, merit
After rate switch conduction, the second common port COM2 is connected with ground GND, and DC source forms loop with LED group, and LED group is by point
Bright.It is fly-wheel diode that described switch terminals to forward between power end connects diode D1, D1.The current sample end of constant current chip
(CSN) described first common port is connected.In the preferred embodiment, depicting 10 groups of LED groups, sampling resistor R1 to R10 is in parallel
It is connected between CSN and VIN end.
In the preferred embodiment, described external dc power uses 12 volts of DC sources.Described constant current chip model is
PT4115。
Constant current chip also has a switch Enable Pin (DIM or title simulation and PWM dim end), and this end can control power and open
The break-make closed and the brightness of LED group.
Above example by way of example only, non-provides constraints.Any without departing from the application spirit and scope, and to it
The equivalent modifications carried out or change, be intended to be limited solely by among claims hereof scope.
Claims (5)
1. low-power consumption can the constant-current LED light bar of cutting, including the circuit board of strip, circuit on circuit boards, bag are set
Wrap up in the shell of circuit board and circuit, it is characterised in that: described circuit includes the positive and negative electrode interface connecting external dc power,
It is connected to the constant-current circuit between positive and negative electrode interface, the LED group being connected between anode interface and constant-current circuit；
Each LED group all includes current sampling resistor and several LED, wherein the current sampling resistor one end being sequentially connected in series
Connect described anode interface, another terminate the first common port, the first common port is to constant-current circuit feedback sample current value, each LED
Group connects the second common port away from one end of sampling resistor, and the second common port connects Constant Electric Current by blood pressure lowering choke induction (L1)
Road；
Each LED group gathers setting, leaves the gap being easy to cutting between adjacent LED lamp group, described in described shell correspondence between
Cutting position icon it is labeled with on the outer surface of gap；
Described constant-current circuit provides current constant control to LED group.
2. low-power consumption as claimed in claim 1 can the constant-current LED light bar of cutting, it is characterised in that: described LED two ends are all
Being provided with positive and negative electrode interface, the interface of LED one end can pass through circuit board with the interface grafting of the other end, the interface at two ends
On circuit interconnection.
3. low-power consumption as claimed in claim 2 can the constant-current LED light bar of cutting, it is characterised in that: described constant-current circuit is adopted
Using voltage-dropping type constant current chip, the power end of constant current chip connects described anode interface, between this power end and described negative pole interface
Connecting shunt capacitance (C1), the ground end of constant current chip connects described negative pole interface, and the switch terminals of constant current chip connects described blood pressure lowering
One end of choke induction (L1), another of this blood pressure lowering choke induction terminates described second common port, and described switch terminals is to power end
Between forward connect diode (D1), the current sample end of constant current chip connects described first common port.
4. low-power consumption as claimed in claim 3 can the constant-current LED light bar of cutting, it is characterised in that: described external dc power
Use 12 volts of DC sources.
5. low-power consumption as claimed in claim 4 can the constant-current LED light bar of cutting, it is characterised in that: described constant current chip model
For PT4115.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620546262.2U CN205859628U (en) | 2016-06-07 | 2016-06-07 | A kind of low-power consumption can the constant-current LED light bar of cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620546262.2U CN205859628U (en) | 2016-06-07 | 2016-06-07 | A kind of low-power consumption can the constant-current LED light bar of cutting |
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| CN205859628U true CN205859628U (en) | 2017-01-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107835539A (en) * | 2017-10-09 | 2018-03-23 | 中山市光兴照明科技有限公司 | A kind of novel LED lamp band |
| CN108809090A (en) * | 2018-06-19 | 2018-11-13 | 四川大学 | A kind of High Power Factor multichannel low ripple constant current output switch converters |
| CN113613362A (en) * | 2020-12-11 | 2021-11-05 | 萤火虫（深圳）灯光科技有限公司 | Lamp bead quantity detection method, controller, light module and storage medium |
| CN113759272A (en) * | 2021-09-10 | 2021-12-07 | 安克创新科技股份有限公司 | Intelligent lamp band length detection method and device and intelligent lamp band |
-
2016
- 2016-06-07 CN CN201620546262.2U patent/CN205859628U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107835539A (en) * | 2017-10-09 | 2018-03-23 | 中山市光兴照明科技有限公司 | A kind of novel LED lamp band |
| CN107835539B (en) * | 2017-10-09 | 2019-08-02 | 中山市光兴照明科技有限公司 | A kind of novel LED lamp band |
| CN108809090A (en) * | 2018-06-19 | 2018-11-13 | 四川大学 | A kind of High Power Factor multichannel low ripple constant current output switch converters |
| CN113613362A (en) * | 2020-12-11 | 2021-11-05 | 萤火虫（深圳）灯光科技有限公司 | Lamp bead quantity detection method, controller, light module and storage medium |
| CN113613362B (en) * | 2020-12-11 | 2023-12-19 | 萤火虫（深圳）灯光科技有限公司 | Lamp bead number detection method, controller, light module and storage medium |
| CN113759272A (en) * | 2021-09-10 | 2021-12-07 | 安克创新科技股份有限公司 | Intelligent lamp band length detection method and device and intelligent lamp band |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190903 Address after: 518000 Hongfa Innovation Park, Bamboo Corner, Jiuwei Community, Hangcheng Street, Baoan District, Shenzhen City, Guangdong Province, 2 buildings and 5 floors Patentee after: Shenzhen Gongya Wisdom Electronics Co., Ltd. Address before: 518000 No. 135 Bulan Road, Buji Street, Longgang District, Shenzhen City, Guangdong Province - No. 9 Ganli Sixth Road Patentee before: Shenzhen Hoyol Opto Electronic Co., Ltd. |