CN106499973B - Double-end power supply safety isolation electronic compatible LED lamp tube and power supply module - Google Patents
Double-end power supply safety isolation electronic compatible LED lamp tube and power supply module Download PDFInfo
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- CN106499973B CN106499973B CN201610976693.7A CN201610976693A CN106499973B CN 106499973 B CN106499973 B CN 106499973B CN 201610976693 A CN201610976693 A CN 201610976693A CN 106499973 B CN106499973 B CN 106499973B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
- F21V23/023—Power supplies in a casing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
- F21V23/026—Fastening of transformers or ballasts
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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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
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- 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]
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Abstract
The invention provides an electronic compatible type LED lamp tube with double-end power supply safety isolation and a power supply module, wherein the electronic compatible type LED lamp tube with double-end power supply safety isolation comprises: two power supply modules and an LED lamp group; the power supply module includes: the high-frequency transformer, the first direct-current relay, the first rectifier bridge, the diode and the capacitor. The technical scheme provided by the invention has the advantage of high safety.
Description
Technical Field
The invention relates to the field of LEDs and illumination, in particular to an electronic compatible type LED lamp tube with double-end power supply safety isolation and a power supply module.
Background
The LED is a short term of light emitting diode, and has been widely used in the field of illumination due to its long lifetime, energy saving, etc., and along with the development of LED, LED lamps have gradually replaced fluorescent lamps. The structure of the existing double-ended power supply fluorescent lamp is shown in fig. 1, wherein the structure comprises a ballast (an electronic ballast or an inductive ballast) and a fluorescent lamp connected with the ballast, and the fluorescent lamp is not in electric communication with the middle of the fluorescent lamp before starting, so that the fluorescent lamp has enough gap between the fluorescent lamp and the middle to ensure the electric safety of the fluorescent lamp.
For the fluorescent lamp, because the fluorescent lamp is largely assembled in the existing places such as subway tunnels, hospitals, schools, office buildings, railway stations and the like, the existing fluorescent lamp has the requirement of replacement, the most convenient replacement mode is that the lamp tube of the fluorescent lamp is directly replaced by an LED lamp tube, other parts are unchanged, but the replacement mode has the safety problem, because a plurality of light emitting diodes are connected in the LED lamp tube, and because the lamp tube is provided with two ends, the lamp tube is installed in a mode that one end of the two ends is installed and then the other end of the two ends is installed, so that a safety problem occurs, namely that after one end is installed, the other end is necessarily electrified, if the installer contacts the other end, the whole LED lamp tube can be conducted through the body of the installer, thus the contact of the installer is not allowed, and for this reason, the international IEC-62776 standard clearly prescribes that the creepage distance of the two ends of the power supply of the double-end LED lamp tube is greater than 2.5mm or the electric gap is greater than 1.5mm, and the double-end LED lamp tube can bear AC1500V/50Hz voltage test, and how to design and manufacture the double-end LED lamp tube which not only meets the international IEC standard, but also can work stably and reliably under normal prescribing becomes an international technical problem of the lighting industry, and the double-end LED lamp tube in the prior art can not reach the IEC standard and has poor safety.
Disclosure of Invention
The double-end power supply safety isolation electronic compatible type LED lamp tube is provided, and can reach IEC6227 standard, and is high in safety.
In a first aspect, an electronic compatible LED lamp with double-ended power safety isolation is provided, the electronic compatible LED lamp with double-ended power safety isolation comprising: the LED lamp comprises two power supply modules, a lamp cap and an LED lamp group;
the first power supply module includes: the high-frequency transformer, the first direct-current relay, the first rectifier bridge, the diode and the capacitor; wherein,,
the upper port of the primary side of the first high-frequency transformer is connected with one metal lamp pin of the lamp cap at one end of the LED lamp tube, the lower port of the primary side of the first high-frequency transformer is connected with the other metal lamp pin of the lamp cap at one end of the LED lamp tube, the middle port of the primary side of the first high-frequency transformer is connected with one end of a first normally open contact in the first direct-current relay, the other end of the first normally open contact in the first direct-current relay is connected with the anode of a first diode, and the cathode of the first diode is connected with the anode of the LED lamp group; the middle port of the primary side of the first high-frequency transformer is also connected with one end of a second normally open contact in the relay, the other end of the second normally open contact in the first direct-current relay is connected with the cathode of a second diode, the anode of the second diode is connected with the cathode of the LED lamp group,
the upper port of the secondary side of the first high-frequency transformer is connected with the No. 1 port of the first rectifier bridge, and the first high-frequency transformerThe lower port of the secondary side of the transformer is connected with a No. 3 port of the first rectifier bridge, a No. 2 port of the first rectifier bridge is connected with one end of a coil in the first direct current relay, a No. 4 port of the first rectifier bridge is connected with the other end of the coil in the first direct current relay, two ends of the first capacitor are respectively connected with a No. 2 port and a No. 4 port of the rectifier bridge, and one end of the second capacitor is connected with a first diode D A1 The other end of the second capacitor is connected with the anode of the second diode;
the second power supply module includes: the second high-frequency transformer, the second direct-current relay, the second rectifier bridge, the diode and the capacitor; wherein,,
the upper port of the primary side of the second high-frequency transformer is connected with one metal lamp pin of the lamp cap at the other end of the LED lamp tube, the lower port of the primary side of the second high-frequency transformer is connected with the other metal lamp pin of the lamp cap at the other end of the LED lamp tube, the middle port of the primary side of the second high-frequency transformer is connected with one end of a first normally open contact in a second direct-current relay, the other end of the first normally open contact in the second direct-current relay is connected with the anode of a third diode, and the cathode of the third diode is connected with the anode of the LED lamp group; the middle port of the primary side of the second high-frequency transformer is also connected with one end of a second normally open contact in the second direct-current relay, the other end of the second normally open contact in the second direct-current relay is connected with the cathode of a fourth diode, and the anode of the fourth diode is connected with the cathode of the LED lamp group;
the upper port of the secondary side of the second high-frequency transformer is connected with the No. 1 port of the second rectifier bridge, the lower port of the secondary side of the second high-frequency transformer is connected with the No. 3 port of the second rectifier bridge, the No. 2 port of the second rectifier bridge is connected with one end of a coil in the second direct-current relay, the No. 4 port of the second rectifier bridge is connected with the other end of the coil in the second direct-current relay, two ends of a third capacitor are respectively connected with the No. 2 port and the No. 4 port of the second rectifier bridge, one end of a fourth capacitor is connected with the cathode of a third diode, and the other end of the fourth capacitor is connected with the anode of a fourth diode.
Optionally, the first high-frequency transformer is a magnetic ring type high-frequency transformer, and the second high-frequency transformer is a magnetic ring type high-frequency transformer.
Optionally, the first power supply module and the second power supply module further include: one end of the temperature fuse is connected with one metal lamp pin of the lamp cap at one end of the LED lamp tube or one metal lamp pin of the lamp cap at the other end of the LED lamp tube, and the other end of the temperature fuse is connected with the upper port of the primary side of the high-frequency transformer.
Optionally, the power supply module further includes: the LED lamp comprises a current limiting resistor and a seventh capacitor, wherein the seventh capacitor is connected with the current limiting resistor in parallel, one end of the current limiting resistor is connected with a metal lamp base of a lamp cap at one end of the LED lamp tube or a metal lamp base of a lamp cap at the other end of the LED lamp tube, and the other end of the current limiting resistor is connected with a lower port of a primary side of the high-frequency transformer.
In a second aspect, a power supply module is provided, the power supply module comprising: the high-frequency transformer, the first direct-current relay, the first rectifier bridge, the diode and the capacitor; wherein,,
the upper port of the primary side of the first high-frequency transformer is connected with one metal lamp pin of the lamp cap at one end of the LED lamp tube, the lower port of the primary side of the first high-frequency transformer is connected with the other metal lamp pin of the lamp cap at one end of the LED lamp tube, the middle port of the primary side of the first high-frequency transformer is connected with one end of a first normally open contact in the first direct-current relay, the other end of the first normally open contact in the first direct-current relay is connected with the anode of a first diode, and the cathode of the first diode is connected with the anode of the LED lamp group; the middle port of the primary side of the first high-frequency transformer is also connected with one end of a second normally open contact in the relay, the other end of the second normally open contact in the first direct-current relay is connected with the cathode of a second diode, the anode of the second diode is connected with the cathode of the LED lamp group,
the upper port of the secondary side of the first high-frequency transformer is connected with the No. 1 port of the first rectifier bridge, the lower port of the secondary side of the first high-frequency transformer is connected with the No. 3 port of the first rectifier bridge, the No. 2 port of the first rectifier bridge is connected with one end of a coil in the first direct-current relay, the No. 4 port of the first rectifier bridge is connected with the other end of the coil in the first direct-current relay, and the two ends of the first capacitor are respectively connected with the other end of the coil in the first direct-current relayThe No. 2 port and the No. 4 port of the rectifier bridge are connected, and one end of the second capacitor is connected with the first diode D A1 The other end of the second capacitor is connected with the anode of the second diode;
the upper port of the primary side of the first high-frequency transformer is an input port of the power supply module, the lower port of the primary side of the first high-frequency transformer is another input port of the power supply module, the cathode of the first diode is an output port of the power supply module, and the anode of the second diode is another output port of the power supply module.
Optionally, the first high-frequency transformer is a magnetic ring type high-frequency transformer.
Optionally, the power supply module further includes: one end of the temperature fuse is connected with one metal lamp pin of the lamp cap at one end of the LED lamp tube, and the other end of the temperature fuse is connected with the upper port of the primary side of the first high-frequency transformer.
Optionally, the power supply module further includes: the LED lamp comprises a current limiting resistor and a seventh capacitor, wherein the seventh capacitor is connected with the current limiting resistor in parallel, one end of the current limiting resistor is connected with a metal lamp pin of a lamp cap at one end of the LED lamp tube, and the other end of the current limiting resistor is connected with a lower port of the primary side of the first high-frequency transformer.
In a third aspect, an LED lamp is provided, where the LED lamp includes the above-mentioned double-ended power supply safety isolated electronic compatible LED tube and an electronic ballast.
According to the technical scheme provided by each embodiment, the method has the advantage of high safety.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a prior art fluorescent lamp;
fig. 2 is a schematic circuit diagram of a double-ended LED lamp according to the present invention;
FIG. 3 is a schematic circuit diagram of a power module according to the present invention;
fig. 4 is a schematic circuit diagram of another power supply module according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 2, fig. 2 is a design drawing of the overall solution provided in the present application, and the working principle of each component will be described according to fig. 2, where fig. 2 includes 2 parts, and the first part is: an Electronic Ballast (EB) 12, the second portion is a double-ended power supply safety isolated electronic compatible LED lamp, wherein the double-ended power supply safety isolated electronic compatible LED lamp (simply referred to as a double-ended LED lamp) further includes: two power supply modules and an LED lamp group 11 (at least one group), wherein the two power supply modules are respectively arranged in a double-end lamp cap of the double-end power supply safety isolated electronic compatible LED lamp tube.
The power supply module circuit is shown in fig. 3, and takes a power supply module disposed in one end cap as an example, the power supply module includes: the high-frequency transformer T1, the direct-current relay ZA, the rectifier bridge QTA, the diode and the capacitor; wherein,,
the upper port (i.e. one input port of the power supply module) of the primary side of the high-frequency transformer T1 is connected with one metal lamp pin of one end lamp cap of the double-end LED lamp tube, the lower port (i.e. the other input port of the power supply module) of the primary side of the high-frequency transformer T1 is connected with the other metal lamp pin of one end lamp cap of the double-end LED lamp tube, the middle port of the primary side of the high-frequency transformer T1 is connected with a first normally open contact J in the direct-current relay ZA AK1 Is connected with one end of the first normally open contact in the relayHead J AK1 Is connected with the other end of the first diode D A1 Is connected with the anode of the first diode D A1 The cathode (namely one output port of the power supply module) of the LED lamp set 11 is connected with the anode of the LED lamp set; the middle port of the primary side of the high-frequency transformer T1 is also connected with a second normally open contact J in the direct-current relay ZA AK2 Is connected with one end of a second normally open contact J in the direct current relay ZA AK2 And the other end of the second diode D A2 Cathode connection of a second diode D A2 The anode (i.e. the other output of the power supply module) is connected to the cathode of the LED lamp set 11.
The LED lamp group comprises: at least two light emitting diodes connected in series, wherein the anode of the first diode of the light emitting diodes connected in series is the anode of the LED lamp group, and the cathode of the last light emitting diode is the cathode of the LED lamp group.
The upper port of the secondary side of the high-frequency transformer T1 is connected with the No. 1 port of the rectifier bridge, the lower port of the secondary side of the high-frequency transformer T1 is connected with the No. 3 port of the rectifier bridge, the No. 2 port of the rectifier bridge is connected with one end of a coil in the direct-current relay ZA, the No. 4 port of the rectifier bridge is connected with the other end of the coil in the direct-current relay ZA, and the capacitor C A2 Two ends of the capacitor C are respectively connected with a No. 2 port and a No. 4 port of the rectifier bridge A3 One end of (a) is connected with a first diode D A1 Cathode of capacitor C A3 The other end of (C) is connected with a second diode D A2 Is a positive electrode of (a).
Similarly, as shown in fig. 2, the power supply module provided in another power supply module includes: the high-frequency transformer T2, the direct-current relay ZB, the rectifier bridge QTA, the diode and the capacitor; wherein,,
the upper port (i.e. one input port of the other power supply module) of the primary side of the high-frequency transformer T2 is connected with one metal lamp pin of the lamp cap at the other end of the double-end LED lamp tube, the lower port (i.e. the other input port of the other power supply module) of the primary side of the high-frequency transformer T1 is connected with the other metal lamp pin of the lamp cap at the other end of the double-end LED lamp tube, the middle port of the primary side of the high-frequency transformer T1 is connected with a first normally open contact J in the direct-current relay ZB BK1 Is connected with one end of a first normally open contact J in the relay BK1 Is connected with the other end of the first diode D B1 Is connected with the anode of the third diode D B1 The cathode of the LED lamp group 11 (namely one output port of the other power supply module) is connected with the anode of the LED lamp group; the middle port of the primary side of the high-frequency transformer T2 is also connected with a second normally open contact J in the direct-current relay ZB BK2 Is connected with one end of a second normally open contact J in the direct current relay ZB BK2 And the other end of the fourth diode D B2 Cathode connection of fourth diode D B2 The anode (i.e. the other output of the other power supply module) is connected to the cathode of the LED lamp set 11.
The upper port of the secondary side of the high-frequency transformer T2 is connected with the No. 1 port of the rectifier bridge, the lower port of the secondary side of the high-frequency transformer T2 is connected with the No. 3 port of the rectifier bridge, the No. 2 port of the rectifier bridge is connected with one end of a coil in the direct-current relay ZB, the No. 4 port of the rectifier bridge is connected with the other end of the coil in the direct-current relay ZB, and a third capacitor C B2 Two ends of the capacitor C are respectively connected with a No. 2 port and a No. 4 port of the rectifier bridge B3 One end of (a) is connected with a third diode D B1 Cathode of fourth capacitor C B3 The other end of (a) is connected with a fourth diode D B2 Is a positive electrode of (a).
Another circuit of the power supply module is shown in fig. 4, and still takes a power supply module disposed in a lamp holder at one end as an example, where the power supply module includes inductance coils LA1 and LA2, a temperature control safety FSA, a direct current relay ZA, a rectifier bridge QTA, diodes DA1 and DA2, and current limiting resistors CA1, CA2, and CA3, where one end of the temperature control safety FSA (i.e., an input port of the power supply module) is connected to one metal lamp pin at one end of the double-ended LED lamp holder, the other end is connected to an upper port of the inductance coil LA1 and a number 1 port of the rectifier bridge QTA, a lower port of the inductance coil LA1 is connected in series with an upper port of the inductance coil LA2 and is connected to one end of the first normally open contact JAK1 of the direct current relay ZA, the other end of the first normally open contact JAK1 is connected to one end of the second normally open contact JAK2, the other end of the second normally open contact JAK2 is connected to an anode of the first diode 1 and a cathode of the second diode DA2, and the cathode of the first diode CA1 (i.e., an output port of the power supply module) is connected to one end of the capacitor CA3 and to an output port of the LED lamp group 11, and the other end of the second diode DA2 is connected to another output port of the LED lamp group 11 is connected to the other end of the capacitor DA 3. The lower port of the inductance coil LA2 is connected with the No. 3 port of the rectifier bridge, and one end of the capacitor CA1 is connected with one end of the current-limiting resistor RA. The other end of the capacitor CA1 and the other end of the current-limiting RA are connected in parallel (namely the other input port of the power supply module) and then are connected with the other metal lamp pin at one end of the double-end LED lamp cap, the No. 2 port of the rectifier bridge QTA is connected with one end of the capacitor CA2 and one end of the direct-current relay ZA, and the No. 4 port of the rectifier bridge is connected with the other end of the capacitor CA2 and the other end of the direct-current relay.
The other circuit of the power supply module has the advantages that the secondary winding of the high-frequency transformer T1 is omitted, and meanwhile, the electric gaps at the two ends of the LED lamp tube are further enlarged, and the power supply module is suitable for direct-current relays of various specifications.
According to the technical proposal provided by the invention, the technical effect achieved by the invention is illustrated according to the attached drawings, the mechanical contact isolation of the direct current relay is adopted, and the coil of the direct current relay is electrified to attract the normally open contact (namely J AK1 、J BK1 、J AK2 、J BK2 ) On, e.g. the dc relay is not energized, the normally-open contact is opened (i.e. J AK1 、J BK1 、J AK2 、J BK2 ) The contact electrical clearance of the relay is larger than 1.5mm, and the relay meets IEC62776 standard, so the relay has high safety. The DC relay coil power supply adopts the coil at the same end (i.e. the coil at the primary side of the high-frequency transformer), the electronic ballast outputs voltage drop at high frequency (25-80 KHz), the voltage is boosted to the secondary side of the high-frequency transformer by the high-frequency transformer devices (T1, T2), and then the voltage is filtered by bridge rectification (QTA or QTB and C) A2 、C B2 ) And driving the direct current relay to work.
When one end of the double-end LED lamp tube is inserted into the lamp holder, the internal oscillating circuit element half-bridge output capacitor C01, the oscillating capacitor C02 and the ballasting high-frequency inductor L of the fluorescent lamp electronic ballast 0 The circuit cannot be formed to form high-frequency output, at the moment, the relay ZA or ZB cannot work, the normally open contact of the direct current relay is disconnected, the lamp caps at the two ends of the double-end LED lamp tube form effective isolation, the electronic ballast can form the circuit to work through the double-end LED lamp tube only after the two ends of the double-end LED lamp tube are simultaneously and normally connected into the lamp holder, and when the electronic ballast is in a starting working state, the starting high-frequency oscillation current flows through the primary side of the high-frequency transformerThe side forms a high-frequency voltage drop, the high-frequency voltage drop is boosted by a high-frequency transformer, and is rectified and filtered by a rectifying circuit and a filter capacitor to be supplied to a direct-current relay to work, a normally open contact of the direct-current relay is attracted, and a high-frequency bridge rectifier diode D A1 、D A2 、D B1 、D B2 Filter circuit C A3 、C B3 After the LED lamp tube is stably operated, the high-frequency working current of the LED lamp tube passes through the primary side and the secondary side of the high-frequency transformer, the bridge rectifier circuit and the filter circuit provide stable direct-current relay maintaining voltage, so that the normal and stable operation of the whole lamp of the double-end LED lamp tube is ensured. It has the advantage of high safety and reliability.
Optionally, the power supply module may further include: and one end of the temperature fuse FSA is connected with the input end of the power supply module, and the other end of the temperature fuse FSA is connected with the upper port of the primary side of the high-frequency transformer.
Optionally, the power supply module may further include: current limiting resistor R A And a seventh capacitor C A1 Wherein the seventh capacitor C A1 And one end of the current limiting resistor RA is connected with the input end of the power supply module, and the other end of the current limiting resistor RA is connected with the lower port of the primary side of the high-frequency transformer.
Optionally, the high-frequency transformer may be a magnetic ring type high-frequency transformer, and the magnetic ring type high-frequency transformer is provided because the magnetic ring type high-frequency transformer has small volume and light weight, and can meet the requirements of reducing the volume and the weight, and has strict requirements on the weight and the volume of the double-end LED lamp tube, for example, the required weight of the double-end LED lamp tube of T5 cannot exceed 200g, the required weight of the double-end LED lamp tube of T8 cannot exceed 500g, so the requirements on the weight and the volume are very high, while the magnetic ring type high-frequency transformer can achieve the requirements, and of course, other types of magnetic cores can be adopted for some lamp tubes with larger sizes, for example, the T8 tube can adopt other magnetic columns, magnetic tanks, EE magnetic cores, high-frequency ferrite or glass-mullite alloy with the shapes of EI magnetic cores, etc. to form the high-frequency transformer magnetic core.
The invention also provides a double-end LED lamp, which comprises the electronic ballast and the double-end power supply safety isolation electronic compatible type LED lamp tube.
The above disclosure is only a preferred embodiment of the present invention, and it should be understood that the scope of the invention is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present invention.
Claims (11)
1. An electronic compatible LED tube with double-ended power supply safety isolation, characterized in that the electronic compatible LED tube with double-ended power supply safety isolation comprises: the LED lamp comprises a first power supply module, a second power supply module and an LED lamp group;
the first power supply module includes: the high-frequency transformer, the first direct-current relay, the first rectifier bridge, the diode and the capacitor; wherein,,
the upper port of the primary side of the first high-frequency transformer is connected with one metal lamp pin of the lamp cap at one end of the LED lamp tube, the lower port of the primary side of the first high-frequency transformer is connected with the other metal lamp pin of the lamp cap at one end of the LED lamp tube, the middle port of the primary side of the first high-frequency transformer is connected with one end of a first normally open contact in the first direct-current relay, the other end of the first normally open contact in the first direct-current relay is connected with the anode of a first diode, and the cathode of the first diode is connected with the anode of the LED lamp group; the middle port of the primary side of the first high-frequency transformer is also connected with one end of a second normally open contact in the relay, the other end of the second normally open contact in the first direct-current relay is connected with the cathode of a second diode, the anode of the second diode is connected with the cathode of the LED lamp group,
the upper port of the secondary side of the first high-frequency transformer is connected with the No. 1 port of the first rectifier bridge, the lower port of the secondary side of the first high-frequency transformer is connected with the No. 3 port of the first rectifier bridge, the No. 2 port of the first rectifier bridge is connected with one end of a coil in the first direct-current relay, the No. 4 port of the first rectifier bridge is connected with the other end of the coil in the first direct-current relay, the two ends of the first capacitor are respectively connected with the No. 2 port and the No. 4 port of the rectifier bridge, and the second power supply is provided with the first power supplyOne end of the capacitor is connected with the first diode D A1 The other end of the second capacitor is connected with the anode of the second diode;
the second power supply module includes: the second high-frequency transformer, the second direct-current relay, the second rectifier bridge, the diode and the capacitor; wherein,,
the upper port of the primary side of the second high-frequency transformer is connected with one metal lamp pin of the lamp cap at the other end of the LED lamp tube, the lower port of the primary side of the second high-frequency transformer is connected with the other metal lamp pin of the lamp cap at the other end of the LED lamp tube, the middle port of the primary side of the second high-frequency transformer is connected with one end of a first normally open contact in a second direct-current relay, the other end of the first normally open contact in the second direct-current relay is connected with the anode of a third diode, and the cathode of the third diode is connected with the anode of the LED lamp group; the middle port of the primary side of the second high-frequency transformer is also connected with one end of a second normally open contact in the second direct-current relay, the other end of the second normally open contact in the second direct-current relay is connected with the cathode of a fourth diode, and the anode of the fourth diode is connected with the cathode of the LED lamp group;
the upper port of the secondary side of the second high-frequency transformer is connected with the No. 1 port of the second rectifier bridge, the lower port of the secondary side of the second high-frequency transformer is connected with the No. 3 port of the second rectifier bridge, the No. 2 port of the second rectifier bridge is connected with one end of a coil in the second direct-current relay, the No. 4 port of the second rectifier bridge is connected with the other end of the coil in the second direct-current relay, two ends of a third capacitor are respectively connected with the No. 2 port and the No. 4 port of the second rectifier bridge, one end of a fourth capacitor is connected with the cathode of a third diode, and the other end of the fourth capacitor is connected with the anode of a fourth diode.
2. The LED tube of claim 1, wherein the first high frequency transformer is a magnetic loop type high frequency transformer and the second high frequency transformer is a magnetic loop type high frequency transformer.
3. The LED tube of claim 1, wherein the magnetic core of the first high frequency transformer is a magnetic ring, a magnetic column, a magnetic can, EE or EI type ferrite, or a glass-mullite alloy.
4. The LED tube of claim 1, wherein the first and second power modules further comprise: one end of the temperature fuse is connected with one metal lamp pin of the lamp cap at one end of the LED lamp tube or one metal lamp pin of the lamp cap at the other end of the LED lamp tube, and the other end of the temperature fuse is connected with the upper port of the primary side of the high-frequency transformer.
5. The LED tube of claim 1, wherein the power module further comprises: the LED lamp comprises a current limiting resistor and a seventh capacitor, wherein the seventh capacitor is connected with the current limiting resistor in parallel, one end of the current limiting resistor is connected with a metal lamp base of a lamp cap at one end of the LED lamp tube or a metal lamp base of a lamp cap at the other end of the LED lamp tube, and the other end of the current limiting resistor is connected with a lower port of a primary side of the high-frequency transformer.
6. The LED tube of claim 1, wherein the primary side of the high frequency transformer is replaced by two series inductance coils, the middle port of the series inductance coils is connected with one end of two normally open series contacts of the dc relay, and the other end of the series normally open contacts is connected with the anode of the first diode and the cathode of the second diode or the anode of the third diode or the cathode of the fourth diode; the upper end of the series inductance coil is connected with one end of the input end of the temperature insurance and rectifier bridge, and the lower end of the series inductance coil is connected with one end of the seventh capacitor and the current limiting resistor and the other end of the rectifier bridge.
7. A power module, the power module comprising: the high-frequency transformer, the first direct-current relay, the first rectifier bridge, the diode and the capacitor; wherein,,
the upper port of the primary side of the first high-frequency transformer is connected with one metal lamp pin of a lamp cap at one end of an LED lamp tube, the lower port of the primary side of the first high-frequency transformer is connected with the other metal lamp pin of the lamp cap at one end of the LED lamp tube, the middle port of the primary side of the first high-frequency transformer is connected with one end of a first normally open contact in a first direct-current relay, the other end of the first normally open contact in the first direct-current relay is connected with the anode of a first diode, and the cathode of the first diode is connected with the anode of an LED lamp group; the middle port of the primary side of the first high-frequency transformer is also connected with one end of a second normally open contact in the relay, the other end of the second normally open contact in the first direct-current relay is connected with the cathode of a second diode, the anode of the second diode is connected with the cathode of the LED lamp group,
the upper port of the secondary side of the first high-frequency transformer is connected with the No. 1 port of the first rectifier bridge, the lower port of the secondary side of the first high-frequency transformer is connected with the No. 3 port of the first rectifier bridge, the No. 2 port of the first rectifier bridge is connected with one end of a coil in the first direct-current relay, the No. 4 port of the first rectifier bridge is connected with the other end of the coil in the first direct-current relay, the two ends of the first capacitor are respectively connected with the No. 2 port and the No. 4 port of the rectifier bridge, and one end of the second capacitor is connected with the first diode D A1 The other end of the second capacitor is connected with the anode of the second diode;
the upper port of the primary side of the first high-frequency transformer is an input port of the power supply module, the lower port of the primary side of the second high-frequency transformer is another input port of the power supply module, the cathode of the first diode is an output port of the power supply module, and the anode of the second diode is another output port of the power supply module.
8. The power module of claim 7, wherein the first high frequency transformer is a magnetic loop type high frequency transformer.
9. The power module of claim 7, further comprising: one end of the temperature fuse is connected with one metal lamp pin of the lamp cap at one end of the LED lamp tube, and the other end of the temperature fuse is connected with the upper port of the primary side of the first high-frequency transformer.
10. The power module of claim 7, further comprising: the LED lamp comprises a current limiting resistor and a seventh capacitor, wherein the seventh capacitor is connected with the current limiting resistor in parallel, one end of the current limiting resistor is connected with a metal lamp pin of a lamp cap at one end of the LED lamp tube, and the other end of the current limiting resistor is connected with a lower port of the primary side of the first high-frequency transformer.
11. An LED lamp comprising an electronic compatible LED tube with double-ended power-supply safety isolation as claimed in any one of claims 1-4 and an electronic ballast.
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| CN107529713B (en) * | 2017-07-27 | 2024-02-02 | 邓树兴 | Universal LED lamp tube and module thereof |
| CN107734740A (en) * | 2017-09-15 | 2018-02-23 | 深圳实现创新科技有限公司 | General-purpose double-ended LED lamp tube and its module meeting safety standards |
| WO2019051769A1 (en) * | 2017-09-15 | 2019-03-21 | 深圳实现创新科技有限公司 | Universal double-ended led lamp tube and module thereof meeting safety standards |
| CN107734779A (en) * | 2017-11-13 | 2018-02-23 | 广州格比瑞科技有限公司 | Double-ended electronic compatible LED lamp driver module |
| DK3809803T3 (en) | 2019-10-15 | 2023-04-11 | Silicon Hill Bv | Electronic safety switch for LED tubes |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH05236675A (en) * | 1992-02-25 | 1993-09-10 | Matsushita Electric Works Ltd | Lighting device |
| DE19751063A1 (en) * | 1997-11-18 | 1999-05-20 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Free-running oscillator circuit with simple start-up circuit |
| CN202059624U (en) * | 2011-03-24 | 2011-11-30 | 广德利德光电有限公司 | Structure of LED tube protective circuit |
| CN201986238U (en) * | 2011-04-08 | 2011-09-21 | 深圳明电创新科技有限公司 | Light-emitting diode (LED) lamp tube driver |
| US9277603B2 (en) * | 2013-12-19 | 2016-03-01 | Lightel Technologies, Inc. | Linear solid-state lighting with frequency sensing free of fire and shock hazards |
| CN104202863A (en) * | 2013-12-26 | 2014-12-10 | 王兴利 | LED (Light-Emitting Diode) power supply circuit compatible with conventional fluorescent lamp ballast |
| WO2016112538A1 (en) * | 2015-01-16 | 2016-07-21 | 邓树兴 | Electronic substitution-type double-end straight-tube led lamp and safety protection circuit thereof |
| CN206669395U (en) * | 2016-10-28 | 2017-11-24 | 邓树兴 | The electronics compatible type LED lamp tube and power supply module of both end power supplying security isolation |
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