CN203661344U - LED low-voltage module driven by 220V alternating current - Google Patents
LED low-voltage module driven by 220V alternating current Download PDFInfo
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- CN203661344U CN203661344U CN201320889100.5U CN201320889100U CN203661344U CN 203661344 U CN203661344 U CN 203661344U CN 201320889100 U CN201320889100 U CN 201320889100U CN 203661344 U CN203661344 U CN 203661344U
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- 230000001681 protective effect Effects 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 14
- 239000003063 flame retardant Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 6
- 238000004079 fireproofing Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000005286 illumination Methods 0.000 abstract description 4
- 239000011324 bead Substances 0.000 abstract 2
- 239000011049 pearl Substances 0.000 description 20
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model discloses an LED low-voltage module driven by a 220V alternating current, and belongs to the LED technical field. The LED low-voltage module comprises a power supply box used for bearing an AC/DC conversion circuit, a long-strip-shaped lamp box main body composed of at least one LED module connected by module connecting wires, and LED lamp beads arranged on the LED modules and connected with the AC/DC conversion circuit, wherein the AC/DC conversion circuit comprises a protective tube forming a loop together with the commercial power, a piezoresistor connected with the commercial power through the protective tube, a rectification filter circuit whose input end is in parallel connection with the piezoresistor, and a step-down constant-current circuit connected with an output end of the rectification filter circuit; and the LED lamp beads are in series connection with the step-down constant-current circuit. The LED low-voltage module solves the problem that an LED lamp box of an existing low-voltage module fails to be externally connected with the commercial power directly, the structure is simplified, the illumination uniformity is improved, and the LED low-voltage module is suitable for popularization and usage.
Description
Technical field
The utility model relates to a kind of LED lamp box, and specifically, what relate to is that one exchanges electrically driven (operated) LED low pressure module by 220V.
Background technology
In recent years, LED advertisement and identifier industry has obtained the development of advancing by leaps and bounds.Surging along with global awareness of saving energy, and under the background that conventional light source electricity price is higher relatively, LED light source energy-saving and environmental protection are supported industry for national policy simultaneously, impel business, building, advertisement and identifier field to continue importing LED lamphouse light source.Wherein the LED lamp box of low pressure module is because the advantages such as luminous heat is little, life-span length, small volume are widely used in advertisement and identifier industry.
At present, what advertisement and identifier industry was mainly used is low pressure module, the technical scheme that adopts low-voltage dc power supply to separate with LED luminescence component, mainly there is following problem in it: LED driving voltage is low-voltage DC, makes the LED light source of advertisement and identifier need to mix separately DC power supply, owing to there being problem of pressure drop, the fed distance of LED power supply is shorter, and voltage attenuation is large, and fed distance is very restricted, if adopt waterproof power supply, cost is higher.And the quality problems of power supply itself, cause the failure rate of whole LED light source system greatly to increase at present.And for light source connecting line, its access lamp box is usually in utter disorder, cause client's installation and maintenance all very inconvenient.
Utility model content
The purpose of this utility model is to provide a kind of and exchanges electrically driven (operated) LED low pressure module by 220V, mainly solves the problem that common LED illuminating module in prior art cannot direct external 220V alternating current.
To achieve these goals, the technical solution adopted in the utility model is as follows:
One exchanges electrically driven (operated) LED low pressure module by 220V, comprise the long strip shape lamp box main body that the LED module that is connected by module connecting line with at least one by the power pack of carrying AC/DC change-over circuit forms, and be positioned at the LED lamp pearl being connected on this LED module and with described AC/DC change-over circuit; Wherein, described AC/DC change-over circuit comprises the protective tube that forms loop with civil power, the piezo-resistance being connected with civil power by this protective tube, the current rectifying and wave filtering circuit that input is in parallel with this piezo-resistance, and the step-down constant-current circuit being connected with this rectification filter circuit output end; Described LED lamp pearl is connected with this step-down constant-current circuit.
Further, for guaranteeing fire-proof and water-proof effect, described power pack is the fire-retardant power pack of ABS.
Again further, described LED module comprises the carrier be made up of ABS fire proofing and is fixed on the LED lamp pearl on this carrier, and wherein the fire-retardant power pack of LED module and ABS is connected mutually.
Described step-down constant-current circuit comprises the electrochemical capacitor in parallel with filter circuit, series connection and buck diode and the patch capacitor in parallel with this electrochemical capacitor mutually, electric current on buck diode is carried out to the constant current chip of constant current, the transformer that voltage on buck diode is boosted, and be connected in parallel on high frequency patch capacitor, low frequency electrochemical capacitor and the discharge resistance of this transformer output.
For further improving the uniformity of illuminance, on described LED module, be also fixed with the lens that are positioned at LED lamp pearl top.
Compared with prior art, the utlity model has following beneficial effect:
(1) the utility model is from wound DC converting circuit, and it and LED operating circuit are integrated in same module, thereby realize the function of the direct external 220V alternating current of LED advertising sign module, make it in the time that reality is used, can directly use civil power, need not remake conversion, both simplified the installation difficulty of LED advertising lamp box, improve ease of use, save again the low-voltage dc power supply of prior art, reduce product cost, have advantages of simple in structure, with low costly, and can greatly reduce failure rate, be applicable to very much promoting the use of.
(2) because advertisement LED lamp box is located at open air mostly, therefore need to consider the impact of weather on it, in prior art, electronic device considers waterproof, protection against the tide, fire-proof function, use expensive direct current waterproof power supply, the utility model for this present situation at fire-retardant power pack of ABS of AC/DC change-over circuit outer wrapping, can form good fire-resistant waterproof effect to AC/DC change-over circuit, greatly extended the useful life of AC/DC change-over circuit.
(3) not of uniform size the causing of the utility model LED lamp box in actual applications causes the difference of demand electrical power value larger, therefore in AC/DC change-over circuit for making LED lamp pearl luminous evenly, what adopt is constant current chip but not current regulator diode makes its voltage scope of application wider, and adaptive capacity is higher.
(4) the utility model is fixed on LED lamp pearl on LED module, for preventing causing the situation of whole LED lamp box luminance nonuniformity to occur after the LED lamp pearl from damaging, LED module adopts series connection form to connect, after a LED lamp pearl bright light loses efficacy, all LED lamp pearls quit work, and guaranteed the advertising results of irradiating.
(5) circuit that the utility model adopts is simplified reliably, take a rectifying device as core, 220V alternating current direct is switched through to the direct current for 36V, supply with many groups LED module of series connection mutually, and in LED module operating circuit, access a constant current chip, thereby can effectively guarantee that LED, for a long time in constant current state, guarantees the luminous uniformity.
(6) the utlity model has the advantage of energy-saving and environmental protection, a LED module can carry multiple LED lamp pearls, can further improve the brightness of LED lamp box, can replace the conventional module of traditional low pressure.
(7) the present invention has adopted the fire-retardant complete plastic module of the fire-retardant power supply tape of ABS ABS as structure carrier, and this is designed with good waterproof and puts dirt, fire retardant insulating effect, and product is durable in use, safe and reliable, and practical value is high.
Accompanying drawing explanation
Fig. 1 is AC/DC change-over circuit figure in the utility model.
Fig. 2 is the external structure of LED lamphouse light source in the utility model.
Fig. 3 is the external structure of power pack in the utility model.
Fig. 4 is the structural representation of LED module in the utility model.
Fig. 5 is the side structure schematic diagram of LED module in the utility model.
In above-mentioned accompanying drawing, the component names that Reference numeral is corresponding is as follows:
1-power pack, 2-LED module, 3-LED lamp pearl, 4-module connecting line, 5-lens.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, and execution mode of the present utility model includes but not limited to the following example.
Embodiment
The disclosed LED low pressure of the utility model module, on connecting by a power pack 1, multiple LED modules 2 have completed the function of LED lamphouse light source.
As shown in Figure 1, in described power pack 1, be fixed with AC/DC change-over circuit, this AC/DC change-over circuit is for converting line voltage to 36V low-voltage dc power supply, comprise the protective tube F1 that forms loop with civil power, connect the piezo-resistance RV1 of civil power by protective tube F1, the current rectifying and wave filtering circuit in parallel with this piezo-resistance, and the step-down constant-current circuit being connected with this rectification filter circuit output end.LED module is connected in step-down constant-current circuit, wherein:
220V civil power is under the protection of protective tube; after adjusting voltage by piezo-resistance RV1, enter current rectifying and wave filtering circuit; this current rectifying and wave filtering circuit comprises the rectifier bridge being made up of diode D1, D2, D3 and D4, with the composition of the electrochemical capacitor C1 for filtering being connected with rectification bridge output end.
Described step-down constant-current circuit comprises mutual series connection buck diode R1 and the R2 in parallel with constant current chip.This constant current chip adopts BP3122 octal chip, can carry out constant current to large-scale voltage, reaches the function that LED lamp pearl is not glimmered; Simultaneously a patch capacitor C2 in parallel between the input of constant current chip and earth terminal, prevents that clutter from affecting constant current chip work, causes the constant current chip lost of life.Because the price of chip is higher, change inconvenience, consider the maintenance issues of LED lamphouse light source, connect two sampling resistor RS1 and RS2 at the chip selection signal end of constant current chip, for manual testing, convenient maintenance.
After rectification voltage need to carry out step-down just can offer LED lamp pearl use, therefore step-down constant-current circuit also comprises the transformer T1 that the voltage after rectification is carried out to step-down.In the present embodiment, adopt the transformer that transformation ratio is 220:36 to carry out transformation, the voltage after step-down is by passing through successively sustained diode 5, filter high frequency patch capacitor C3 and the power supply of the backward LED lamp of filter low frequency electrochemical capacitor C4 pearl.The present embodiment adopts discharge resistance R3 to discharge to LED lamp pearl.Multiple LED lamp pearl series connection of each LED module, it is upper that this series arm is parallel to discharge resistance R3.
It should be noted that, the paster C5 in Fig. 1 is electric discharge use.
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, shown in the present embodiment each LED module have three LED lamp pearls 3, have 7 LED modules, be applied to larger lamp box.Wherein AC/DC change-over circuit is sealed in power pack, this power pack adopts the fire-retardant power pack of ABS, waterproof, moistureproof and fire prevention, LED module shell is ABS inflaming retarding shell, all LED modules connect by module connecting line 4, LED lamp pearl 3 light emitting regions on LED module are 130 °, uniform-illumination; And in order further to improve uniform-illumination effect, on each LED module, be positioned at LED lamp pearl above be fixed with again lens 5, the more uniform three disjunctor lens of lens preferred light illumination in the present embodiment, are applicable to the module that comprises 3 LED lamp pearls.
As shown in Figure 4, on the LED module in the utility model, mark has an installation direction arrow, is the direct current supply after rectification due to what adopt, therefore for preventing setup error, damages LED module, on the shell of LED module, also identifies and has both positive and negative polarity.
Above-described embodiment is only preferred embodiment of the present utility model; the not restriction to the utility model protection range; in every case adopt design principle of the present utility model, and carry out non-creativeness work on this basis and the variation made, within all should belonging to protection range of the present utility model.
Claims (5)
1. one kind exchanges electrically driven (operated) LED low pressure module by 220V, it is characterized in that, comprise the long strip shape lamp box main body that the LED module (2) that is connected by module connecting line (4) with at least one by the power pack (1) of carrying AC/DC change-over circuit forms, and be positioned at the LED lamp pearl (3) that this LED module (2) is upper and be connected with described AC/DC change-over circuit; Wherein, described AC/DC change-over circuit comprises the protective tube that forms loop with civil power, the piezo-resistance being connected with civil power by this protective tube, the current rectifying and wave filtering circuit that input is in parallel with this piezo-resistance, and the step-down constant-current circuit being connected with this rectification filter circuit output end; Described LED lamp pearl (3) is connected with this step-down constant-current circuit.
2. one according to claim 1 exchanges electrically driven (operated) LED low pressure module by 220V, it is characterized in that, described power pack (1) is the fire-retardant power pack of ABS.
3. one according to claim 2 exchanges electrically driven (operated) LED low pressure module by 220V, it is characterized in that, described LED module (2) comprises the carrier be made up of ABS fire proofing and is fixed on the LED lamp pearl (3) on this carrier, and wherein LED module (2) and the fire-retardant power pack of ABS are connected mutually.
4. one according to claim 3 exchanges electrically driven (operated) LED low pressure module by 220V, it is characterized in that, described step-down constant-current circuit comprises the electrochemical capacitor in parallel with filter circuit, series connection and buck diode and the patch capacitor in parallel with this electrochemical capacitor mutually, electric current on buck diode is carried out to the constant current chip of constant current, the transformer that voltage on buck diode is boosted, and be connected in parallel on high frequency patch capacitor, low frequency electrochemical capacitor and the discharge resistance of this transformer output.
5. one according to claim 3 exchanges electrically driven (operated) LED low pressure module by 220V, it is characterized in that, is also fixed with the lens (5) that are positioned at LED lamp pearl (3) top on described LED module (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889100.5U CN203661344U (en) | 2013-12-31 | 2013-12-31 | LED low-voltage module driven by 220V alternating current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889100.5U CN203661344U (en) | 2013-12-31 | 2013-12-31 | LED low-voltage module driven by 220V alternating current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203661344U true CN203661344U (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320889100.5U Expired - Lifetime CN203661344U (en) | 2013-12-31 | 2013-12-31 | LED low-voltage module driven by 220V alternating current |
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| Country | Link |
|---|---|
| CN (1) | CN203661344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103702470A (en) * | 2013-12-31 | 2014-04-02 | 李忠训 | LED (light-emitting diode) low voltage module driven by 220V alternating current |
-
2013
- 2013-12-31 CN CN201320889100.5U patent/CN203661344U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103702470A (en) * | 2013-12-31 | 2014-04-02 | 李忠训 | LED (light-emitting diode) low voltage module driven by 220V alternating current |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160322 Address after: 610200, No. two, section two, airport road 1000, Southwest Economic Development Zone, Shuangliu County, Sichuan, Chengdu Patentee after: BLUEVIEW ELEC-OPTIC TECH Co.,Ltd. Address before: Chenghua District Shuangqing Road Chengdu City, Sichuan province 610000 26 1 unit 1 Building No. 1603 Patentee before: Li Zhongxun |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |