CN206713124U

CN206713124U - LED commercial lighting HVDC hvdc circuits

Info

Publication number: CN206713124U
Application number: CN201720473839.6U
Authority: CN
Inventors: 郑华
Original assignee: Individual
Current assignee: Foshan City Shunde District Junan Town Sunbird Electric Appliance Co ltd
Priority date: 2017-05-02
Filing date: 2017-05-02
Publication date: 2017-12-05
Anticipated expiration: 2027-05-02

Abstract

It the utility model is related to technical field of LED illumination, more particularly to LED commercial lighting HVDC hvdc circuits, including protective tube, transformer, power rectifier bridge heap, CBB types thin film capacitor, inductance, the first electrochemical capacitor, iron inductance, the second electrochemical capacitor, compared with prior art, the beneficial effects of the utility model are：LED lamp by AC network is not influenceed substantially and is not transmitted thunderbolt by alternating current net side and influenceed every LED lamp that the circuits such as EMC, Active PFC, filtering and element can not be needed to the electromagnetic interference (EMC) of light fixture, seldom auxiliary element is only needed, is just directly output to the LED light source of series connection.In this way, the circuit of lamp control device is very simple, reliability is very high, and the life-span can be very long, and this manufactures and installed for light fixture highly beneficial, and there are larger advantage in its overall cost and life-span compared with original AC D/C powers topology.

Description

LED commercial lighting HVDC hvdc circuits

Technical field

It the utility model is related to technical field of LED illumination, and in particular to LED commercial lighting HVDC hvdc circuits.

Background technology

Existing LED commercial lightings, isolate LED electronic-controlled installations using AC-DC（Driving power is referred to as down）, by Belong to display lighting in commercial lighting occasion, for showing the article of the sale such as commodity such as clothes, jewellery, it is necessary to by light more To reduce the best characteristic of commodity most original, light fixture needs hue angle, sometimes also needs to move, thus lamp power need every From；Another market and sales field all require to the power factor of driving power and certification, therefore commercial lighting must use on request Isolate certification power supply.

LED power is directly connected to AC network, every LED lamp all needed EMC, rectification, PFC, filtering, The steady voltage output of power drive or current stabilization is exported to LED light source again.

LED lamp is directly connected to AC network, is on the one hand influenceed by power network very big, such as power network is to the EMC shadows of light fixture Ringing the thunderbolt to come with electrical grid transmission influences；On the other hand, every LED drive power all needs the circuit of complexity, causes to drive Power volume is larger, it is necessary to design larger casing to install power supply.The complicated natural power supply cost of circuit is just high, element event more Barrier point is more, and power supply is generally seated in lamp interior, is influenceed by lamp body temperature, and the life-span is typically difficult to accomplish the long-life.Dimension It is also high to protect cost, light fixture totality cost is high.And comparatively, than more prominent, these all make LED lamp for safety, EMC problems Reliability is low and influences the life-span.

The content of the invention

It is for technological deficiency, the technical problems to be solved in the utility model existing for above-mentioned prior art：LED business is provided Industry illuminates HVDC hvdc circuits, electromagnetic interference of the LED lamp substantially not by AC network to light fixture（EMC）Influence and not by Every LED lamp of influence that alternating current net side transmits thunderbolt can not need the circuits such as EMC, PFC, filtering And element, seldom auxiliary element is only needed, is just directly output to the LED light source of series connection.In this way, the circuit of lamp control device Very simple, reliability is very high, and the life-span can be very long, this manufacture and install for light fixture it is highly beneficial, its overall cost and There is larger advantage in life-span compared with original AC-DC electric source topologies.

The utility model provides LED commercial lighting HVDC hvdc circuits, including protective tube, transformer, high-power whole Flow bridge heap, CBB types thin film capacitor, inductance, the first electrochemical capacitor, iron inductance, the second electrochemical capacitor, the protective tube series connection On live wire, the transformer one terminates AC220V, and one end is changed in couples without the alternating current of voltage, the power rectifier Bridge heap is arranged on the transformer rear end and carries out carrying out alternating current rectification, and then tentatively obtains the Rectified alternating current of forward direction, institute State CBB type thin film capacitor parallel connections once to be filtered in the line, the inductance series connection carries out secondary filtering, institute in the line The first electrochemical capacitor parallel connection to be stated to be filtered three times in the line, the iron inductance series connection carries out four filtering in the line, The second electrochemical capacitor parallel connection is finally filtered in the line, and pressure-resistant is 400V.

The utility model provides the power supply of LED commercial lighting HVDC HVDCs, can also have the feature that：It is described CBB type thin film capacitors are once filtered, and pressure-resistant is 630V.

The utility model provides the power supply of LED commercial lighting HVDC HVDCs, can also have the feature that：Described One electrochemical capacitor is filtered three times, and pressure-resistant is 450V.

By above LED business HVDC hvdc circuits, more pure 310V direct currents can be converted alternating current to Electricity（Ripple voltage is no more than 10%）Used to supply LED, both met the demand of lamp isolation, and because direct current is not present Phase difference, power factor can accomplish to be similar to 1, for LED lamp, it is only necessary to carry out simple decompression constant current can Work, it is not necessary to consider other a series of problems, fitting structure can also be made simple.This kind of device is non-due to having used The devices such as Chang Naiyong iron inductance, service life can power supply more single than traditional LED it is long a lot.

Compared with prior art, the beneficial effects of the utility model are：LED lamp is substantially not by AC network to light fixture Electromagnetic interference（EMC）Influence and by alternating current net side do not transmitted thunderbolt and influenceed every LED lamp not needing The circuits such as EMC, PFC, filtering and element, seldom auxiliary element is only needed, be just directly output to the LED light of series connection Source.In this way, the circuit of lamp control device is very simple, reliability is very high, and the life-span can be very long, this for light fixture manufacture and Install highly beneficial, its overall cost has larger advantage with the life-span compared with original AC-DC electric source topologies.

Brief description of the drawings

Fig. 1 is the circuit theory diagrams of the utility model LED business HVDC hvdc circuits.

Brief description of the drawings：F1 protective tubes, T1 transformers, BR1 power rectifier bridges heap, C1CBB types thin film capacitor, L1 electricity Sense, the electrochemical capacitors of C2 first, L2 iron inductances, the electrochemical capacitors of C3 second.

Embodiment

The invention will be further described below in conjunction with the accompanying drawings.

As shown in figure 1, LED commercial lighting HVDC hvdc circuits, including F1 protective tubes, T1 transformers, BR1 are high-power Rectifier bridge stack, C1CBB types thin film capacitor, L1 inductance, the electrochemical capacitors of C2 first, L2 iron inductances, the electrochemical capacitors of C3 second, institute State F1 protective tubes to be connected on live wire, the T1 transformers one terminate AC220V, and one end is changed in couples without the exchange of voltage Electricity, the BR1 power rectifiers bridge heap are arranged on the T1 transformers rear end and carry out carrying out alternating current rectification, and then preliminary To the Rectified alternating current of forward direction, the C1CBB types thin film capacitor parallel connection is once filtered in the line, the L1 inductance string Connection carries out secondary filtering in the line, and the first electrochemical capacitors of C2 parallel connection is filtered three times in the line, the L2 iron cores Inductance series connection carries out four filtering in the line, and the second electrochemical capacitors of C3 parallel connection is finally filtered in the line, pressure-resistant For 400V.

Further, the C1CBB types thin film capacitor is once filtered, and pressure-resistant is 630V.

Further, the electrochemical capacitors of C2 first are filtered three times, and pressure-resistant is 450V.

Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded To belong to the scope of protection of the utility model.

Claims

1.LED commercial lighting HVDC hvdc circuits, including protective tube, transformer, power rectifier bridge heap, CBB type films Capacitor, inductance, the first electrochemical capacitor, iron inductance, the second electrochemical capacitor, the protective tube are connected on live wire, the change Depressor one terminates AC220V, and one end is changed in couples without the alternating current of voltage, and the power rectifier bridge heap is arranged on described Transformer rear end carries out carrying out alternating current rectification, and then tentatively obtains the Rectified alternating current of forward direction, the CBB types thin-film capacitor Device parallel connection is once filtered in the line, and the inductance series connection carries out secondary filtering, first electrochemical capacitor in the line Parallel connection is filtered three times in the line, and the iron inductance series connection carries out four filtering, the second electrolysis electricity in the line Hold parallel connection finally to be filtered in the line, pressure-resistant is 400V.

2. the LED commercial lighting HVDC hvdc circuits according to claim 1, it is characterised in that the protective tube Be encapsulated as：SMD and plug-in type.

3. the LED commercial lighting HVDC hvdc circuits according to claim 1, it is characterised in that first electricity Solution electric capacity and second electrochemical capacitor are encapsulated as：SMD and plug-in type.