WO2014196772A1

WO2014196772A1 - Fluorescent lamp replacing led lamp driving device having shock current interruption function and led lamp equipped with same driving device

Info

Publication number: WO2014196772A1
Application number: PCT/KR2014/004894
Authority: WO
Inventors: 김진국
Original assignee: Kim Jihn Kuk
Priority date: 2013-06-03
Filing date: 2014-06-02
Publication date: 2014-12-11

Abstract

There has been an increasing emphasis on the importance of the green industry to save energy. LED lighting lamps have been spread widely in this regard, but existing glass tube fluorescent lamps have not yet been extensively replaced with LED lamps, because replacement of existing fluorescent lamps with LED lamps requires very difficult replacing processes of removing existing fluorescent lamp stabilizers, which have been installed inside fluorescent lamp devices and reinstalling LED converters. A LED lamp according to the present invention uses AC power, which is outputted from a fluorescent lamp stabilizer, with no modification to drive the LED lamp. Therefore, installation of a LED lamp is completed just by replacing a glass tube-type fluorescent lamp with a LED lamp according to the present invention while existing fluorescent lamp devices, including the fluorescent lamp stabilizer, are used with no modification. In this case, however, the LED lamp must satisfy electric product safety standards, K10025, announced on January 25, 2013 by Korean Agency for Technology and Standards, which require that a LED lamp have safety functions, such as a fire prevention function, a safe area operating function, etc., including a shock current interruption function. The present invention makes it possible for a fluorescent lamp replacing LED lamp to satisfy the safety standards K10025 without modifying the exterior of an existing fluorescent lamp. Therefore, the present invention will make a big contribution to the widespread use of fluorescent lamp replacing LED lamps.

Description

【Specification】

[Name of invention]

Fluorescent lamp replacement type LED lamp driver with electric shock blocking function and LED lamp equipped with the driver.

[Technical Field]

The present invention is an LED lamp that can be used by removing the conventional fluorescent lamp from the conventional fluorescent lamp luminaire with a built-in fluorescent ballast, and replacing it with an efficient LED lamp, LED lamp driving device having a good electric shock current blocking function and its driving device It relates to an LED lamp equipped with.

[Technique to become background of invention]

Recently, in order to save energy, various lighting fixtures including fluorescent lamps have been replaced with LED lamps having similar appearances and efficient socket sharing. However, the existing fluorescent lamp fixtures are already installed in the existing ballast for fluorescent lamps built-in, in order to use ordinary LED lamps, there is an inconvenience to ^' replace the fluorescent ballast mounted on the existing fluorescent lamp premises with LED converters, The spread of LED fluorescent lamps is not activated. Therefore, there is a need for such a fluorescent lamp replacement LED lamp that can remove the conventional glass tube fluorescent lamp from the existing fluorescent lamp luminaire, and can be used by mounting a fluorescent lamp-shaped LED lamp in its place. February 25 [Notification of Korean Agency for Standards and Technology No. 2013-085] Safety notices for electrical appliances, K-10025, and safety standards for fluorescent lamp replacement LED lamps. In mall K-10025, it is possible to replace fluorescent lamps with LED lamps. The key technical requirements are safety for fire, safety for fire and safety for operation. The stability requirement for electric shock is "There is no risk of electric shock if human body touches the other cap while the cap of the fluorescent lamp is plugged into the luminaire." There should be no risk of fire when used in fluorescent ballasts of any kind. The safety requirements for the operation are "If the LED lamp is used in any kind of fluorescent ballast, it must operate stably. There must be a blocking function. "

[Contents of the Invention]

Problem to be solved

SUMMARY OF THE INVENTION An object of the present invention is to provide a fluorescent lamp replacement LED lamp driving device having an electric shock current blocking function and an LED including the driving device, such that a fluorescent lamp replacement LED lamp can satisfy safety requirements including an electric shock current blocking function. In providing a lamp. Electronic fluorescent ballast [A] and general fluorescent lamp [B], as shown in FIG. 1, are connected to each other through filaments formed at both caps of fluorescent lamp by coil (L) and resonant capacitor C]. Resonance at the frequency of. In a general type optical lamp as shown in FIG. 1, the human body contacts the other cap [(: ', d' terminal) with one cap [a ', b' terminal] inserted into a luminaire [a, b terminal]. Electric shock current does not flow even if one cap [a ', b' terminal side] of the general fluorescent lamp is electrically separated from the other cap [c ', d' terminal side]. When the caps are all plugged in, the coil [L] and the resonant capacitor C] in the ballast are connected through the filaments formed on both caps of the fluorescent lamp, and the resonant capacitor has a frequency of about 45 kHz. As a result, a voltage of 550 Vpp is charged and discharged, and as a result, the voltage waveform [550 Vpp, 45 kHz] is caught on both cap terminals of the fluorescent lamp, so that a discharge current flows in the fluorescent lamp. With one cap plugged into the luminaire, it is required that no electric shock current flows to the human body even when the other cap contacts the human body, and the LED fluorescent lamp is required to operate safely in various types of fluorescent ballasts. The present invention provides such a fluorescent lamp replacement type LED lamp driving device and an LED lamp equipped with the driving device.

[Measuring solution]

Fluorescent lamp replacement type LED lamp driving device of the present invention is the same as a conventional fluorescent lamp, the usual [the state that both caps of the fluorescent lamp replacement type LED lamp is not plugged into the fluorescent lamp luminaire] By completely separating the cap, only one cap of the LED lamp is plugged into the luminaire so that no electric shock current flows to the human body even when the other cap contacts the human body. When both caps of the LED lamp are connected to the fluorescent lamp, A closed loop is automatically formed between the caps on both sides of the LED lamp. The fluorescent lamp ballast [A] receives the electrical energy supplied between the caps on the LED lamp, and the LED lamp is driven by the electrical energy. 【Effects of the Invention】

Fluorescent lamp replacement type LED lamp driving device having an electric shock current blocking function of the present invention and an LED lamp equipped with the driving device block the electric shock current in the same way as a conventional general fluorescent lamp, the external connection structure of the LED lamp The LED lamp of the present invention, which has a structure like a 100% fluorescent lamp and is stably mounted on a conventional fluorescent lamp, improves energy efficiency by 35 to 40% compared to a conventional fluorescent lamp. It is expected to contribute greatly to the spread of energy supply and energy saving.

【Brief Description of Drawings】

1 is a view showing the interconnection and operation relationship between the electronic fluorescent ballast and the glass tube type fluorescent lamp.

Figure 2 is a circuit diagram of a conventional fluorescent lamp replacement LED lamp without the electric shock current blocking function [Registration No. 10-0891740]

3 is a view showing the configuration of the LED lamp cap with a built-in switch for cutting the electric shock current in the related art [Registration No. 10-1373216]

4 is a circuit diagram and a block diagram of a fluorescent lamp replacement type LED lamp driving device having an electric shock current blocking function and an LED lamp [B] equipped with the driving device showing an embodiment of the present invention.

Fig. 5 is a white block diagram and a block diagram of a fluorescent lamp replacement type LED lamp driving device having an electric shock current blocking function and an LED lamp [B] equipped with the driving device showing another embodiment of the present invention.

A; Electronic fluorescent ballast

B's glass tube fluorescent lamp [FIG. 1]

B; LED lamp. [FIG. 4], [FIG. 5]

a, b; Resonance output terminal of fluorescent ballast

c, d; resonant feedback terminal of fluorescent ballast

a ', b'; Fluorescence [1 Elamp power input terminal

c ', d'; Power return terminal of fluorescent [LED] lamp. Bi: LED lamp driving device

B ₂ ： LED Matrix Array

1. Redundancy Bridge Rectifier Circuit Block of LED Lamp [Figure 4]

Bridge rectifier circuit block of LED lamp [Figure 5]

1.1 First Redundancy Bridge Rectifier Block [Fig. 4]

First Bridge Rectifier Circuit Block [FIG. 5]

1.2 Second Redundancy Bridge Rectifier Block [Fig. 4]

2nd bridge rectifier circuit block [FIG. 5]

2. Current limit relay drive circuit block

2.1 Current limiting circuit block

3. LED array control circuit block

4. Energy floor discharge circuit block

5. Overcurrent blocking circuit block

U1's High Frequency Oscillation and Current Control ICs

U2's Overcurrent Shutoff Comparator

D1 D12's 1st to 12th Diodes

D1, D21, D31, D41, D51, D61, D71, D81: Redundancy Diodes C1-C10; 1st to 10th Capacitors ^'

R1-R12's 1st to 12th resistors

Res' Resistor for Current Detection

L1; Coil 1

ZD1-ZD2's First and Second Zener Diodes RYI; 2 circuit C type relay

Ql 'NPN Type Transistor

CN1's Input Power Connector

CN2's LED Current Supply Connector

+; Bridge Rectification + Terminal

-Ground terminal

[Specific contents to carry out invention]

In order to achieve the above object, the operation principle of the fluorescent lamp replacement type LED lamp driving device [] having the electric shock current blocking function of the present invention and the LED lamp [B] equipped with the driving device will be described in detail with drawings. . It has been described in the above-mentioned problem to be solved that the conventional glass tube type fluorescent lamp configured as shown in FIG. 1 has an electric shock current blocking function. However, in the conventional fluorescent lamp replacement type LED lamp such as the configuration of Figure 2, between the two caps of the LED lamp is also connected via CRE _S1 ~ CRE _S4, and also through D ₁₂₁ ~ D ₁₂₈ , the electric shock current There is no blocking function. In order to ensure that the conventional fluorescent lamp replacement type LED lamp configured as shown in FIG. 2 has an electric shock current blocking function, a base cap (of structure No. 10-1373216) configured as shown in FIG. 3 is formed between both cap terminals and the circuit components. Use, they must be electrically separated. However, as shown in Fig. 3, the base cap of the registration No. 10-1373216 structure is complicated and expensive, and there is a high possibility of malfunction due to poor contact due to mechanical error of the fluorescent lamp fixture. Hard to use Meanwhile, as shown in FIG. 4 Fluorescent lamp replacement type LED lamp driving device [B1] with electric shock current blocking function of the present invention and LED lamp [B] equipped with the driving mechanism thereof are normally used in two circuits C [when no current flows in the relay coil]. Terminal 3 of type relay [RY1] is attached to terminal 2, and terminal 8 of the relay is attached to terminal 9. As a result, the 2 [c ^' , d ^' ] terminals of one cap of the LED lamp can be seen in Fig. 4 and the circuit diagram.

c ^' Terminal → Relay No. 3 → Relay No. 2 Terminal → Telit No. 9 Terminal → Relay No. 8 Terminal → d ^' Terminal

Are electrically connected to each other through the path of [this is because the c 'terminal and the d' terminal must be connected at the initial start to form a closed circuit that can flow current to the relay coil], any other component of the LED lamp It is not electrically connected, and is completely isolated from the 2 >> 'and b'] terminals of the other cap of the LED lamp. Therefore, in the fluorescent lamp replacement type LED lamp driving device having an electric shock current blocking function of the present invention and the LED lamp equipped with the driving device, the human body contacts the other cap while the cap of the fluorescent lamp is plugged into the fluorescent lamp. No electric shock current flows. However, if both caps on both sides of the LED lamp are plugged into the fluorescent light fixture,

a → a 'b → b' c → cd → d ^'

A terminal such as the a ^'to the terminal, b terminals ^b' to the terminal c terminal c ^'d terminal to terminal ^d' 4 is connected to the terminal

time

Terminal → Relay No. 9 Terminal → Relay No. 8 Terminal d ^' Terminal → d Terminal

The current path is formed and the bridge rectification (+) voltage is laminated to the fifth condenser. 5, and the relay [RY1] coil is connected to the bridge rectification (+) terminal. Will flow. On the other hand, since the relay [RY1] configured in FIG. 4 of the present invention is a two-circuit C type relay, when a current flows in the coil [between the terminals 1 and 10 of the relay] of the relay [RY1], the relay contacts

Terminal 3 is connected to terminal 4 like terminal 3 → terminal 4 (attached to terminal 4 apart from terminal 2) terminal 8 → terminal 7 (attached to terminal 7 apart from terminal 9). Terminal 8 is connected to terminal 7. Consequently, c terminal → c '→ relay 3 terminal → relay 4 terminal D5 anode

D8 cathode

d terminal → d '→ relay 8 terminal → relay 7 terminal D6 anode

Connected to the path of D7 cathode, the c ^' terminal and d' terminal of the LED lamp are connected to the second redundancy bridge rectifier circuit block of the LED lamp. Terminal 2 [a ', b'] of one cap of the present invention from the beginning to the first redundancy bridge rectifier circuit 2 [c ^' , d ^' ] terminal of the other cap is connected to the second redundancy bridge rectifier circuit block in this way, and the terminal a or b ^' from the fluorescent ballast [A] It is to drive LED lamp with electric energy supplied through and ^' c ^' terminal or d ^' terminal. However, this configuration alone requires no external current to flow in the resonant capacitor C] inside the fluorescent lamp ballast [A]. There are four capacitors [CRE _S1 , CRES2, CRESS, CRE _S4 ] between the caps. In the present invention, two resonance assist capacitors CI and C2 configured in the first redundancy bridge rectifier circuit block in FIG. 4 play a role of stably resonating the fluorescent ballast. As shown in (1) of FIG. 4, the redundant bridge rectifying circuit block is used in the present invention, and when the general bridge rectifying circuit block is used as shown in FIG. 5, any one of the bridge rectifying diodes is used. This is because when the failure of the diode short occurs, the output stage of the fluorescent ballast is shorted and there is a danger of fire and danger from overcurrent.

When the redundant bridge rectifier circuit is configured and used as in the present invention, even if a failure occurs in which one diode is shorted, the output of the fluorescent ballast is normally unaffected. In the case of a product that is supplied with a general commercial power supply, if a failure occurs in which one of the bridge rectifier diodes is shorted, the fuse is open because the power is infinite, but the fluorescent lamp is driven by the electricity supplied from the fluorescent ballast. The fuse does not open with a compatible LED lamp. ^. The fluorescent lamp replacement type LED lamp of the present invention configured as described above has a first redundancy of electric signals supplied through the a ^' or b ^' terminal and the c ^' or d ^' terminal from the fluorescent ballast. Bridge rectification is performed by the ridge rectifier circuit block and the second redundancy bridge rectifier circuit block to drive the LED lamp by holding the DC residual in the LED matrix array []. In the fluorescent lamp alternative type LED lamp of the present invention, in Fig. 4, the bridge rectified (+) terminal voltage is flowed down the CN ₂ terminal to the LED matrix array [B ₂ ] to control the LED array through the first coil [L]. It is supplied to a switching element built in the high frequency oscillation and current control IC [U] of the circuit block [3], which is switched on and off at a frequency of approximately 50 kHz.

[OFF] The operation is repeated, the energy layer on time. The energy layered on the first coil of the discharge circuitry force [4] is off-time via the twelfth diode [D ₁₂ ] through the LED matrix array [ B ₂ ] to maintain a constant current, while eliminating the flicker of the LED lamp.

Since the silver LED current is detected through the R _cs resistor and the current value is controlled to open when the current value is greater than or equal to the reference current value, a constant current flows in the LED matrix array [B2] at all times. However, if the LED current exceeds the specified value due to anomalies or other component aging, the overcurrent blocking circuit block

[5] operates to turn off the switching element built in. In general, when the reference current set in 1 exceeds 30%, the overcurrent cut-off circuit block [5] determines that the overcurrent. This non Gyoki for over-current block via a twelfth resistor [R _12] Resistance after integration of the voltage detected in the resistance for the current detecting [R _cs] to claim Ί resistance [R and theta eight cones dense C _8] [U ₂ ] 2 [of -] When subjected to a terminal said comparator [U ₂ - 2 times the terminal voltage is higher than the reference voltage applied to the 3 [+] terminal of said comparator [U _2] output [# 1] terminal voltage To output this low [Low] and this is via the tenth diode [D ₁₀ ] In a manner to apply to the gate [Gate] terminals of the switching elements incorporated in U ₂ turns off the switching device's built in the U ₂ [OFF] will be cut off the overcurrent.

In FIG. 4, the tenth condenser C ₁₀ configured in parallel with the first resistor [] and the third condensed C ₃ ] connected in parallel with the second resistor are configured to facilitate relay operation at initial start-up. It is for the configuration. At the initial start, the current flowing through the relay coil flows through the first resistor and the second resistor, and also through the tenth condenser Cio] and the third condenser C ₃ ]. Once started and the capacitor is layered, the relay coil current flows only through the resistors [Rl, R2]. This is because the relay keeps [ON] even if only 50% of the start current is transmitted.

Composed of three resistors [Ri, ¾] and two capacitors [C ₃ , Ciol, two zener diodes [Z _D1 , Z _D2 ] 1 transistor Q1] and 1 2 circuit C type relay [！ ^ The operation principle of the current limit relay driving circuit block will be described. If the rated current of the relay coil is 8mA and the rated voltage is 24V, the resistance of the relay coil is 3kS. In Figure 4

Zener voltage of ZDI = V _ZD1 = 24V

When the resistance value of R ₂ = r ₂ = 3k ₀ , the current flowing through the emitter terminal of the first transistor C] to the second resistance is ir ₂ .

. (24-0.7) V 23.3 _f- . _ _-.

1ΐ 2 = ― = —— (πιΑ) = 7.77 mA

³ kO ³ Is established, and as a result, the current flowing through the coil of the relay [RYi], which is connected to the collector terminal of the transistor], is kept about 7.77 mA. This remains constant regardless of the variation of the bridge rectified (+) terminal voltage. In the fluorescent lamp replacement type LED lamp of the present invention, the driving power supply for high frequency oscillation and current control of the LED array control circuit block [3] is supplied from the current limiting relay driving circuit power [2]. If the rated voltage of is 12V _DC and the rated current is 3mA, the second zener diode [Z _D2 ] in FIG. 4 may be determined as a zener diode having a 12V _DC zener voltage. At this time, 3 mA of the 7.77 mA current flowing through the relay coil flows to the power input terminal of the above 1, and about 1 mA of the remaining 4.77 mA flows to the power input terminal of the overcurrent blocking comparator [U2], and only about 3.77 mA of the second. It consumes itself from the Zener diode [Z _D2 ]. In this manner, in the fluorescent lamp replacement type LED lamp of the present invention, the relay coil driving current is used as the driving power source for the LED array control circuit block [3] and the overcurrent blocking circuit block [5].

Claims

Patent Claim

[Claim 1]

In the fluorescent lamp replacement LED lamp including the LED lamp drive unit [B1] and the LED matrix array [B2], and a total of four terminals exposed to the outside by two terminals in one cap, any of the four terminals The power supplied to one cap and the two terminals [a ', b'] is bridge rectified by the first bridge rectifier, and the second bridge [c ', d'] of the other cap is the second bridge rectifier low block. [1.2] and a two-circuit C type relay [RY], but normally [when no current flows in the two-circuit C type relay coil], the c 'terminal and the d' terminal are the two-circuit C type relay. The circuit is shorted through a contact terminal of and is electrically isolated [isolated] from the second bridge rectifier circuit block [1.2]. When the current flows in the two-circuit C type relay coil, the c ' The terminal and the d 'terminal are separated from each other, and the contact of the two-circuit C type relay And the c 'terminal and the d' terminal are connected to the bridge diode of the second bridge rectifier circuit block.

LED lamp.

[Claim 2]

In the LED lamp driving device embedded in the fluorescent lamp replacement type LED lamp including a total of four terminals exposed to the outside by two terminals in one cap, two terminals [a ', b'] of any one of the four terminals The power supplied to the bridge is rectified by the first bridge rectifier circuit block, and the second bridge rectifier circuit block [1.2] and the two circuit C type relay [RY1] are formed at the two terminal [c d '] of the other cap. In normal [when no current flows in the two-phase C-type relay coil], the c 'terminal and the d' terminal are connected to the contact terminal of the two-circuit C type relay. Is shorted through the circuit, and is electrically isolated [isolated] from the second bridge rectifier circuit block [1.2]. When current flows through the two-circuit C pressure relay coil, the c 'terminal and the d' terminal Separated from each other, the c 'terminal and the d' terminal are connected to the bridge diode of the second bridge rectifier circuit block through the contact point of the two-circuit C type relay [RY1].

LED lamp drive.

[Claim 3]

The method of claim ² ,

The current limiting relay driving circuit force [2] for driving the two-circuit C-type relay is configured, and one [1] terminal of the two-circuit C-type relay [RY1] coil is connected to the bridge via a first resistor [Ri]. To the positive output terminal of the rectifier circuit block [1], and the other end of the relay coil.

[10] The terminal is connected to the collector terminal of the transistor <], and the emitter terminal of the transistor is connected to the anode terminal of the first zener diode ^！ through the second resistor [R ₂ ]. the configuration, configured by connecting the Tran not Ste Qi] of the base terminal of the first Zener diode the cathode terminal, and the first Zener diode ^; !! cathode terminal of the back third resistance [R _3] Connect to the (+) output terminal of the bridge rectifier circuit block [1] through the anode terminal of the first zener diode again to the cathode terminal of the second zener diode [ZD ₂ ], and the second zener The anode terminal of the diode [ZD ₂ ] is connected to the ground terminal.

LED lamp drive.

[Claim 4] The method of claim 2,

One diode connected in series to each diode [Dl, D2, D3, D4, D5, D6, D7, D8] of the first bridge rectifier circuit block [1.1] and the second bridge rectifier circuit block [1.2] [Dll, D21, And further comprising a first redundancy bridge rectifying circuit block [1.1] and a second redundancy bridge rectifying circuit block [1.2], which are configured by adding D31, D41, D51, D61, D 71, and D81].

LED lamp drive.

[Claim 5]

The method of claim 3,

A third condenser C ₃ ] is connected in parallel at both ends of the second resistor [R ₂ ] connected to the emitter terminal of Sangga Transistor _Ql ], and a tenth capacitor [C ₁₀ ] is provided at both ends of the first resistor. Further comprising the idea of connecting in parallel

LED lamp driving device.

[Claim 6]

The method of claim ² ,

The voltage detected by the LED current detecting resistor [Res] is connected to the 2nd (-) terminal of the overcurrent blocking comparator [U ₂ ] through an integrated circuit consisting of R ₇ and C ₈ and a twelfth resistor [R ₁₂ ]. If the LED current exceeds a certain value, the output [No. 1] terminal of the comparator [U ₂ ] is configured to output Low, and the output [Terminal 1] of the [U ₂ ] is the 10th diode [D ₁₀ ] is applied to the gate of the switching element with high frequency oscillation and current control IC! N of the LED array control circuit block [3], and when the LED current exceeds a predetermined value, the switching element embedded in ^ is turned off. LED lamp drive to cut off LED overcurrent.