KR20160071545A

KR20160071545A - Lighting apparatus using pn junction light emitting means

Info

Publication number: KR20160071545A
Application number: KR1020140178516A
Authority: KR
Inventors: 김기완; 이재훈
Original assignee: 우리조명 주식회사
Priority date: 2014-12-11
Filing date: 2014-12-11
Publication date: 2016-06-22

Abstract

The present disclosure relates to a pn junction light emitting device illumination device having a first connection part and a second connection part, each of which is supplied with an electrical power having a different polarity from a power supply device, the device comprising: a light emitting part having at least one LED light emitting device; And an electric shock prevention circuit provided between the first connection part and the light emitting part to prevent electric shock, wherein when only one of the first connection part and the second connection part is electrically connected to the power supply device, the electric power is turned off and the first connection part and the second connection part And an electric shock prevention circuit for preventing an electric shock from being electrically connected to the power supply unit and electrically connected to the light emitting unit when both of the first connection unit and the second connection unit are electrically connected to the power supply unit Emitting device according to the present invention.

Description

TECHNICAL FIELD [0001] The present invention relates to a light emitting device,

The present disclosure relates generally to a pn junction light emitting device illumination device, and more particularly to a pn junction light emitting device illumination device with improved safety.

Herein, the background art relating to the present disclosure is provided, and these are not necessarily meant to be known arts.

A light emitting diode module in which a plurality of light emitting diodes (LEDs) are mounted on a power supply substrate is typically used as a light source in a pn junction light emitting device illumination device. Since LEDs have advantages such as small size, low power consumption and excellent control characteristics, the pn junction light emitting device illumination device can be manufactured slimly and lightly.

Fig. 1 shows examples of LED lamps. Figs. 1a and 1b show an intuitive LED lamp, and Fig. 1c shows an LED lamp. In the LED lighting system, there is a stabilizer compatible type that replace only the lamp with the existing fluorescent lamp mechanism, a direct type that has a built-in converter in the LED lamp, and an external converter that has a separate converter in the LED lamp. The ballast-compatible type is convenient, but there is a risk of fire. Direct-type type can be used by removing the ballast in the existing fluorescent lamp apparatus. The external type of converter is used by replacing the ballast with a converter.

FIG. 2 is a diagram showing an example of an LED lighting circuit for connecting a fluorescent lamp disclosed in International Patent Application No. 2010/050659. Since both ends of the circuit connected to the ballast are not in an electrically separated state, And a constant voltage can be measured by measuring at the other end. Also, if an LED or other device is open or shorted in the circuit, there is a risk that the voltage of the ballast will rise excessively and be damaged. In addition, there is insufficient protection against a surge current from the outside.

FIG. 3 is a view for explaining an example of a ballast-compatible LED lamp, in which only the straight tube LED lamp 100 is inserted into a ballast 5 using a fluorescent lamp as shown in FIG. The first connection part 110 of the LED lamp 100 is connected to the ballast 5 and the second connection part 120 of the LED lamp 100 is not connected to the ballast 5, There is a risk of electric shock if the second connection part 120 is brought into contact with the second connection part 120. In the case of an external converter, the converter is electrically connected. In the case of the direct connection type, this problem may occur because the external power supply must be connected to the converter.

This will be described later in the Specification for Implementation of the Invention.

SUMMARY OF THE INVENTION Herein, a general summary of the present disclosure is provided, which should not be construed as limiting the scope of the present disclosure. of its features).

According to one aspect of the present disclosure, there is provided a pn junction light emitting device having a first connection portion and a second connection portion, each of which is supplied with an electrical power of a different polarity from a power supply device, An apparatus, comprising: a light emitting portion having at least one p-junction light emitting element; And an electric shock prevention circuit provided between the first connection part and the light emitting part to prevent electric shock, wherein when only one of the first connection part and the second connection part is electrically connected to the power supply device, the electric power is turned off and the first connection part and the second connection part And an electric shock prevention circuit for preventing an electric shock from being electrically connected to the power supply unit and electrically connected to the light emitting unit when both of the first connection unit and the second connection unit are electrically connected to the power supply unit Emitting device is provided.

According to another aspect of the present disclosure, there is provided a pn junction light emitting device having a first connection portion and a second connection portion, each of which is supplied with an electrical power of a different polarity from a power supply device, An element lighting apparatus comprising: a light emitting portion having at least one p-junction light emitting element and electrically connected to a first connection portion and a second connection portion; An overvoltage preventing element that is turned off when the operating voltage of the light emitting unit is lower than the operating voltage of the light emitting unit; And a wiring separating element connected to the light emitting portion and the overvoltage preventing element and electrically disconnected from the light emitting portion when the overvoltage preventing element is conducted and the current flows to prevent the voltage of the power supply from rising, A pn junction light-emitting device illumination device is provided.

1 shows examples of LED lamps,
2 is a view showing an example of an LED lamp for a fluorescent lamp socket disclosed in International Patent Application No. 2010/050659,
3 is a view for explaining an example of a ballast-compatible LED lamp,
4 is a view for explaining an example of a pn junction light-emitting device illumination device according to the present disclosure,
5 is a view for explaining an example of the DGT,
6 is a view for explaining an example of a relay switch,
7 is a view for explaining another example of the pn junction light-emitting device illumination device according to the present disclosure,
8 is a view for explaining an example of the overvoltage preventing element,
9 is a view for explaining another example of the pn junction light-emitting device illumination device according to the present disclosure,
10 is a view for explaining the operation of the pn junction light emitting device illuminating devices described in Fig. 9,
11 is a view for explaining another example of the pn junction light-emitting device illumination device according to the present disclosure;

The present disclosure will now be described in detail with reference to the accompanying drawings.

4 is a view for explaining an example of a lighting device for a pn junction light emitting device according to the present disclosure, in which the lighting device for a pn junction light emitting device includes a plurality of light emitting devices, each of which is supplied with an electrical power of a different polarity from the power supply device 5 A first connection part 110 and a second connection part 120, a light emitting part 190, and an anti-shock circuit 130, 140. The light emitting portion 190 includes at least one p-junction light emitting element (e.g., an LED) and is connected to the driving circuit 180. The electric shock prevention circuits 130 and 140 are connected to the first connection part 110 and the second connection part 120 when the first connection part 110 and the second connection part 120 are electrically connected to the power supply device 5, When the first connection part 110 and the second connection part 120 are both electrically connected to the power supply device 5, the light emitting part (not shown) 190 are turned on.

In this example, the power supply device 5 is a ballast or stabilizer that can be used for a fluorescent lamp, and the first connection part 110 and the second connection part 120 are connected to the ballast 5 It is a tubular lighting device that is electrically connected. The power supply device 5 is not limited to the ballast 5, but may be any device that supplies power to the pn junction light emitting device lighting device, and a converter or the like may also be a power supply device 5. The pn junction light emitting device illumination device can be applied not only to the tubular lighting device but also to the lamp or other lighting device shown in Fig. 1C.

In this example, the pn junction light-emitting device illumination device includes a rectifying circuit 150. Fig. The rectifier circuit 150 electrically connects the electric shock prevention circuits 130 and 140 to the light emitting portion 190 and converts the AC power supplied from the ballast 5 to DC. As the rectifying circuit 150, a bridge diode may be used. As the rectifier circuit, various modifications are possible in addition to the bridge diode.

As shown in Fig. 1, LEDs can be accommodated in an intuitive viewframe and, as shown in Fig. 3, a first connection part 110 and a second connection part 120 are provided at both ends of the straight tube, respectively . The plurality of LEDs are mounted on the circuit board and provided in the straight tube, and the first connection part 110 and the second connection part 120 can be electrically connected to the circuit board. The first connection part 110 and the second connection part 120 are connected to the ballast 5 and used. One of the first connection part 110 and the second connection part 120 may be connected to the ballast 5 at first when the straight tube is mounted on the ballast 5. At this time, The user's hand or body may come into contact with one of the remaining connections. In the case of a fluorescent lamp, there is no big problem because the tube of the fluorescent lamp itself is insulated before both ends are connected to the ballast 5, but a problem of electric shock or the like may arise in the pn junction light emitting device lighting device incorporating the LED ).

The anti-shock circuits 130 and 140 prevent electric shock in such a case. For example, the anti-shock circuits 130 and 140 include an electric element 130 and a switching element 140. The electric element 130 may be provided between one of the first connection part 110 and the second connection part 120 and the light emitting part 190 as an element whose insulation state and conduction state are changed according to the voltage applied across both ends . It is of course possible to provide both the first connection part 110 and the light emitting part 190 and the second connection part 120 and the light emitting part 190. Also, in this case, the anti-static circuits 130 and 140 can prevent the first connection part 110 and the light emitting part 190 (not shown) , And between the second connection part 120 and the light emitting part 190. [0064]

In this example, the electric element 130 connects the first connecting portion 110 and the light emitting portion 190, specifically, the first connecting portion 110 and the rectifying circuit 150. The switching element 140 is connected in parallel with the electric element 130.

In FIG. 4, the reference numerals will be described later.

FIG. 5 is a view for explaining an example of the DGT, and FIG. 6 is a view for explaining an example of a relay switch, in which a gas surge suppressor (for example, gas discharge tube 5a) may be used, and as the switching element 140, a relay switch may be used. For example, the GDT 130 has two electrodes in a tube and a tube filled with gas. The tube is usually made of the same material as the ceramic, and the operating characteristics of the GDT 130 depend on the gas pressure and gas type, and have a specific rated voltage and rated current. As the gas, hydrogen, an inert gas, or the like is used. When the gas is ionized, the GDT 130 has conductivity. For example, current does not flow through the GDT 130 at an operating voltage of the light emitting unit 190, and current flows when a voltage higher than the operating voltage is applied. When the voltage is lowered after the current flows, the current through the GDT 130 does not flow again. In FIG. 5B, the operation characteristic graph of the GDT is an example, and various GDTs having different characteristics can be adopted.

The switching device 140 may be variously used as long as it is turned on and off in conjunction with the GDT and bypassed after conducting the GDT. In this example, a relay switch 140 as shown in Fig. 6 is used. The relay switch 140 has an operation coil and a switch. When a direct current rectified by the rectifier circuit 150 flows in the operation coil, a magnetic force is generated and the switch is turned on and off.

The pn junction light emitting device illumination device may include a zener diode 160 and an electrolytic capacitor 170. The zener diode 160 is connected in parallel to the light emitting portion 190 between the rectifying circuit 150 and the light emitting portion 190 and both ends of the relay switch 140 are connected to both ends of the zener diode 160. The electrolytic capacitor 170 is connected in parallel with the light emitting portion 190 between the rectifying circuit 150 and the light emitting portion 190.

When only one of the first connecting portion 110 and the second connecting portion 120 is electrically connected to the ballast 5, the GDT 130 is in an insulated state in which current does not flow as an insulator. Therefore, since no current flows to the rectifier circuit 150, no current flows to the operation coil of the relay switch 140, so that the relay switch 140 maintains the off state before the GDT 130 is turned on. Therefore, power is not supplied to the remaining one connection portion not connected to the ballast 5, so that electric shock is prevented. When the first connection part 110 and the second connection part 120 are all electrically connected to the ballast 5, the voltage of the ballast 5 increases and the voltage applied to the GDT 130 reaches the conduction voltage and becomes conductive , So that the light emitting portion 190 can emit light. On the other hand, since the power supply necessary for continuous light emission is not appropriate by the GDT 130, current flows to the operation coil after the GDT 130 conducts, and accordingly, the switch is turned on. As a result, the GDT 130 is bypassed and power is supplied to the light emitting portion 190 through the switching device 140 and the rectifying circuit 150, and the light emitting portion 190 stably emits light.

Therefore, the risk of electric shock is prevented at the connection portions 110 and 120 of the pn junction light-emitting device illumination device. Therefore, the safety condition required for the pn junction light-emitting device illumination device can be satisfied.

Fig. 7 is a view for explaining another example of the pn junction light-emitting device illuminating device according to the present disclosure, in which the light-emitting portion 190 is opened. The lighting device for a pn junction light-emitting device includes an illumination device having a first connection part (110) and a second connection part (120) which are respectively supplied with an electric power of different polarity from a power supply device (5) A rectifying circuit 150, an overvoltage preventing element 165, and a wiring separating element 155 having a junction light emitting element. The rectifying circuit 150 electrically connects the first connecting part 110 and the second connecting part 120 to the light emitting part 190 and supplies the AC power supplied from the power supply device 5 And the bridge rectifier circuit 150 may be used. The overvoltage preventing element 165 is provided between the rectifying circuit 150 and the light emitting portion 190 and is disconnected at the operating voltage of the light emitting portion 190 and becomes conductive when the applied voltage rises to an overvoltage equal to or higher than the operating voltage. The wiring separating element 155 is connected to the light emitting portion 190 and the overvoltage preventing element 165 so that the overvoltage preventing element 165 is electrically connected to the light emitting portion 190 as the current flows. Thereby preventing excessive voltage rise of the power supply unit and preventing damage.

In this example, the power supply 5 is a ballast or a stabilizer that can be used for a fluorescent lamp, and the first connection part 110 and the second connection part 120 are electrically connected to the ballast 5 Which is a tubular lighting device. When the output voltage of the ballast 5 is raised to an overvoltage by at least one of open, short, and electrical surges in the circuit of the pn junction light emitting device illumination device, the overvoltage prevention device 165 and / The voltage of the ballast 5 is prevented from being excessively increased by the wire separation element 155. [

The overvoltage preventing element 165 may include a variable resistor whose resistance varies according to the applied voltage. The pn junction light emitting device illumination device may include an electrolytic capacitor 170 connected in parallel with the light emitting portion 190 between the overvoltage preventing device 165 and the light emitting portion 190. The overvoltage preventing device 165 may include an electrolytic capacitor They are connected in parallel. As an example of the overvoltage preventing element 165, a varistor 165 (varistor) which is turned off at the operating voltage of the light emitting portion 190 and is conductive at an overvoltage higher than that of the overvoltage preventing element 165 may be used. Of course, the overvoltage prevention device 165 is not limited to this, and may be any device that is turned on to prevent the excessive increase of the voltage of the ballast 5 when the operation of the light emitting unit 190 is broken, . The wiring separating element 155 is disconnected by the heat generated by the current due to the conduction of the varistor 165 and is electrically separated from the electrolytic capacitor 170. For example, a set fuse 155 may be used .

8 is a view for explaining an example of the overvoltage preventing element 165. As an example of the overvoltage preventing element 165, a varistor may be used. The varistor 165 exhibits a nonlinear voltage-current characteristic due to a change in resistance depending on an applied voltage, and may be referred to as a metal oxide varistor (MOV) or a voltage dependent resistor (VDR). The meaning that the varistor is attached is meaningful in the voltage-current characteristic shown in Fig. 8B. The varistor 165 is connected in parallel to the component or circuit to be protected, so that when the transient voltage increases, a low resistance circuit is formed to prevent the transient voltage from rising further. In this example, the set fuse 155 is connected to the varistor 165 and the electrolytic capacitor 170, as shown in Fig. 7, in addition to the protection by the varistor 165. When a current flows through the varistor 165, The set fuse 155 is disconnected even if the current is within the current. Accordingly, the power supply path to the electrolytic capacitor 170 and the light emitting portion 190 is cut off, and an excessive voltage rise of the ballast 5 is prevented. Here, in the case where an open, a hat, or the like occurs in any part of the entire circuit of the pn junction light-emitting device illuminating device, an open case in which the light-emitting portion 190 is removed or an open or open of elements in the illuminating device have. If this occurs, the voltage of the ballast 5 may be excessively increased. In this example, the damage of the ballast 5 is prevented by the protective circuit comprising the varistor 165 and the set fuse 155, prevent. Therefore, the safety condition required for the pn junction light-emitting device illumination device can be satisfied.

9 is a view for explaining another example of the lighting device for a pn junction light emitting device according to the present disclosure, in which the power supply device is a ballast 5 which can be used for a fluorescent lamp, The first connection part 110 and the second connection part 120 are electrically connected to the ballast 5 and the first connection part 110 and the second connection part 120 are connected to the light emitting part 190. [ And a rectifying circuit 150 that converts the AC power supplied from the ballast 5 to DC.

The rectifying circuit 150 includes a first connection end 15a connected to the first connection part 110, a second connection end 15b connected to the input side of the light emitting part 190, a second connection part 15b connected to the second connection part 120, A fourth connection end 15d connected to the output side of the light emitting portion 190 and a second connection end 15b between the first connection end 15a and the second connection end 15b, And the third connection end 15b and the third connection end 15c and between the third connection end 15c and the fourth connection end 15d and between the fourth connection end 15d and the first connection end 15a. Lt; / RTI >

The pn junction light-emitting device illumination device is a protection circuit, which includes an overvoltage prevention device 165 and wiring separation elements 155a and 155b. The overvoltage preventing device 165 is turned off at the operating voltage of the light emitting portion 190 and is opened when the light emitting portion 190 is opened and an overvoltage higher than the operating voltage of the light emitting portion 190 is applied from the power supply. The overvoltage prevention device 165 may include at least one of a varistor and a gas discharge tube (GDT). In this example, the overvoltage prevention device 165 includes a second connection terminal 15b and a fourth connection terminal And a varistor 165 connected in parallel to the light emitting unit 190. [

The wiring separating elements 155a and 155b are connected to the light emitting portion 190 and the overvoltage preventing element 165 so that the overvoltage preventing element 165 is electrically connected to the light emitting portion 190 Thereby preventing the voltage of the ballast 5 from rising. For example, the wiring separation elements 155a and 155b are electrically connected to the resistance element 155b that generates heat by the current flowing when the overvoltage prevention element 165 is conducted and the light emitting portion 190, And a fuse 155a electrically separated from the light emitting portion 190 by heat from the light emitting portion 155b. The resistance element 155b and the fuse 155a form a set fuse.

The resistance element 155b is connected in series to the varistor 165, and current does not flow when the varistor 165 is turned off. The fuse 155a is connected in series to the resistance element 155b and is connected to the light emitting portion 190. A current flows when the light emitting portion 190 emits light and is generated from the resistance element 155b during the conduction of the varistor 165 And is electrically separated from the light emitting portion 190 by the heat to prevent the ballast 5 from being damaged.

The pn junction light emitting device illumination device includes an electric shock prevention circuit provided between at least one of the first connection part 110 and the second connection part 120 and the light emitting part 190 to prevent electric shock. For example, the anti-shock circuit includes a GDT 130, relay switches 140a and 140c. The GDT 130 is provided in at least one of the first connection part 110 and the first connection part 15a and between the second connection part 120 and the third connection part 15c, And the second connecting portion 120 are connected to each other, the first connecting portion 110 and the second connecting portion 120 are electrically isolated from each other and are not electrically connected to the ballast 5, The first connecting portion 110 and the second connecting portion 120 are all connected to the ballast 5, they are made conductive. 9 shows an example in which the GDT 130 is provided between the first connection part 110 and the first connection end 15a. The relay switches 140a and 140c are turned off when the GDT 130 is insulated and turned on after the GDT 130 is turned on to bypass the GDT 130 to the light emitting unit 190 Providing a fine power supply path.

Fig. 10 is a view for explaining the operation of the pn junction light emitting device illuminating devices described in Fig. 9. First, the stabilizer 5 is provided with a first connecting portion (not shown) of the tubular pn junction light emitting device illuminating device The relay switches 140a and 140c are also in the OFF state at this time so that the first connection part 110 and the second connection part 120 are connected to the first connection part 110 and the second connection part 120, The electric shock does not occur even if the hand touches the other one not connected to the ballast 5. Thereafter, when the remaining one of the connection portions is connected to the ballast 5, the voltage of the ballast 5 rises and the GDT 130 reaches the conduction voltage and the current flows. The light emitting unit 190 can emit light by being supplied with a direct current through the rectifying circuit 150. As the GDT 130 is turned on, current flows through the operating coils of the relay switches 140a and 140c connected to the rectifying circuit 150 and the relay switches 140a and 140c are turned on by the magnetic force formed by the operating coils. The relay switches 140a and 140c are connected in parallel with the GDT 130 so that when the relay switches 140a and 140c are turned on, the GDT 130 having a large resistance is bypassed so that no current flows and the relay switches 140a and 140c- Power is supplied to the light emitting portion 190 through the rectifying circuit 150 and stable light emission is performed. In the operating voltage of the light emitting portion 190, the varistor 165 forming the protection circuit is almost in a non-conductive state, and the set fuses 155a and 155b do not operate. When the stabilizer 5 rises to an overvoltage and an overvoltage is applied to the varistor 165 due to an open, shunt or surge in the circuit for the reason as described above, the varistor 165 is turned on and current flows, The set fuses 155a and 155b operate and the wiring to the electrolytic capacitor 170 side is disconnected. As a result, the ballast 5 is prevented from being damaged.

Accordingly, a pn junction light emitting device illumination device having a function of preventing the electric shock and damaging the ballast 5, for example, a ballast compatible direct type LED lamp, is provided.

11 is a view for explaining another example of the pn junction light emitting device illuminating device according to the present disclosure, in which the pn junction light emitting device illuminating device includes a first connecting portion 110, a second connecting portion 120, a first GDT 165 The second GDT 130, the relay switch 140, the wiring separating elements 155a and 155b, the rectifying circuit 150, the Zener diode 160, the electrolytic capacitor 170, the driving circuit 180, (190). The second GDT 130 and the relay switch 140 form an electric shock prevention circuit and the first GDT 165 and the wiring separation elements 155a and 155b form a protection circuit. That is, in this example, the first GDT 165 corresponds to the varistor 165 described in FIGS. 7 and 8 as an overvoltage preventing element 165, and functions as an element that is turned off at a voltage lower than a certain voltage and turned on at an overvoltage . The combination of the first GDT 165 and the relay switch 140 can also constitute an additional electric shock prevention circuit. In this example, therefore, the first and second connection portions 110, .

The first GDT 165 is provided between the first connection part 110 and the first connection end 15a so that when only one of the first connection part 110 and the second connection part is connected to the ballast 5, And prevents electric shock in the first connection part 110 and the other one of the second connection parts which is not electrically connected to the ballast 5. The wiring separating element (for example, a set fuse) includes a resistance element 155b provided between the first GDT 165 and the first connection terminal 15a in series with the first GDT 165, and a resistance element 155b And a fuse 155a provided between the first GDT 165 and the first connection end 15a in series. The fuse 155a is electrically separated from the first connection terminal 15a by the heat generated from the resistance element 155b in the conduction of the first GDT 165 to prevent damage to the ballast.

The second GDT 130 is provided between the second connection part and the third connection part 15c. When only one of the first connection part 110 and the second connection part is connected to the ballast, And the other one of the second connection portions which is not electrically connected to the ballast 5 is prevented from being electrically charged.

The relay switch 140 bypasses the first GDT 165 and the second GDT 130 when both the first connection part 110 and the second connection part are connected to the ballast. For example, the relay switch 140 includes a first switch portion 140a connected in parallel with the first GDT 165, a second switch portion 140b connected in parallel with the second GDT 130, And a coil part 140c connected in parallel with the light emitting part to the first connection part 15b and the fourth connection part 15d and for turning on and off the first switch part 140a and the second switch part 140b.

When only one of the first connecting part 110 and the second connecting part 120 is connected to the ballast, the GDTs 130 and 165 are not connected, so that electric shocks in the remaining connecting parts that are not connected to the ballast are prevented. When both the first connecting part 110 and the second connecting part 120 are connected to the ballast, the voltage applied to the GDTs 130 and 165 rises and the GDTs 130 and 165 are turned on. Current flows. When a current flows in the rectifier circuit, a voltage is applied to the coil portion 140c of the relay switch 140, and the switch portions 140a and 140b are connected to pass a current, the GDTs 130 and 165 are bypassed, ) Can be stably emitted. The current flows to the set fuses 155a and 155b momentarily until the GDT 165 is turned on and then bypassed by the relay switch 140. In this case, the fuse 155a is not disconnected.

The ballast voltage may rise due to an open, a shot, or the like in a part of the entire circuit of the piano junction light emitting device lighting device such as the light emitting portion 190 and the driving circuit 180. In this case, the voltage for turning on the coil section 140c of the relay switch 140 is not applied, and the switch sections 140a and 140b are turned off. The fuse 155a is disconnected by the heat generated by the resistor element 155b and the current flows through the set fuses 155a and 155b so that the current flows through the GDTs 130 and 165, Damage due to voltage rise is prevented.

The combination of the GDT 165, the relay switch 140 and the set fuses 155a and 155b as shown in FIG. 11 may have an electric shock prevention function and a ballast protection function. Can be considered sufficiently.

Accordingly, a pn junction light emitting device illumination device having a function of preventing an electric shock and preventing damage to a ballast, for example, a ballast compatible direct type LED lamp, is provided.

Various embodiments of the present disclosure will be described below.

(1) A pn junction light emitting device illumination device having a first connection part and a second connection part, each of which is supplied with an electrical power having a different polarity from a power supply device, the device having at least one pn junction light emitting device, A light emitting portion electrically connected to the connection portion and the second connection portion; And an electric shock prevention circuit provided between at least one of the first connection portion and the second connection portion and the light emitting portion to prevent electric shock, wherein when only one of the first connection portion and the second connection portion is electrically connected to the power supply device, The first connecting portion and the second connecting portion are electrically connected to the power supply device, and when the first connecting portion and the second connecting portion are electrically connected to the power supply device, A light emitting diode (LED), and a circuit.

(2) The power supply is a ballast or stabilizer which can be used for a fluorescent lamp, and the pn junction luminous means illumination device is a tubular LED lighting device in which the first connection part and the second connection part are electrically connected to the ballast, And a rectifying circuit that electrically connects the first connecting portion, the second connecting portion, and the anti-shock circuit to the light emitting portion, and converts the AC power supplied from the ballast to a direct current.

In the present disclosure, the lighting device for a pn junction light-emitting device can be configured to emit light directly by alternating current. In this case, the rectifying circuit for DC conversion may be omitted and used in connection with a power supply such as a Switching Mode Power Supply (SMPS). Even in this case, an electric shock prevention circuit and a power supply protection circuit can be usefully used.

(3) The electric shock prevention circuit is configured such that: when only one of the first connection portion and the second connection portion is electrically connected to the power supply device, the electric device becomes conductive when both the first connection portion and the second connection portion are electrically connected to the power supply device; And a switching element that is turned off when the electric element is turned off and is turned on after the electric element is turned on to bypass the electric element to provide a power supply path to the light emitting portion (Light emitting device).

(4) an overvoltage preventing element that is turned off at the operating voltage of the light emitting portion and becomes conductive when the voltage of the power supply device rises due to a short or open in the pn junction light emitting device illumination device; And a wiring separating element connected to the light emitting portion and the overvoltage preventing element and electrically disconnected from the light emitting portion when the overvoltage preventing element is conducted and the current flows to prevent the voltage of the power supply from rising, (Light emitting device).

(5) The electrification preventing circuit connects one of the first connecting portion and the second connecting portion to the rectifying circuit, and when only one of the first connecting portion and the second connecting portion is connected to the ballast, it is insulated, and both the first connecting portion and the second connecting portion An electrical element that is conducted when connected to the ballast; And a switching element connected in parallel with the electric element, wherein the electric element is turned off at the time of insulation and is turned on after the electric element is turned on to bypass the electric element to provide a power supply passage to the light emitting portion And a switching element for emitting light to the pn junction light emitting device.

(6) The electric device is a GDT (Gas Discharge Tube) connecting a rectifying circuit to at least one of the first connecting portion and the second connecting portion. When only one of the first connecting portion and the second connecting portion is electrically connected to the power supplying device, And a GDT in which an input terminal and an output terminal are insulated from each other and an input terminal and an output terminal of the GDT are electrically connected when both the first connection portion and the second connection portion are electrically connected to the power supply device, Emitting device.

(7) The rectifying circuit includes: a first connecting end connected to the first connecting portion; A second connection terminal connected to an input side of the light emitting portion; A third connection terminal connected to the second connection section; A fourth connection terminal connected to the output side of the light emitting portion; And a diode provided between the first connection end and the second connection end, between the second connection end and the third connection end, between the third connection end and the fourth connection end, and between the fourth connection end and the first connection end Wherein the pn junction light emitting device illuminating device comprises:

(8) The GDT is provided between the first connection unit and the first connection unit, and the relay switch includes: a switch unit connected in parallel with the GDT between the first connection unit and the first connection unit; And a coil part connected in parallel to the second connection end and the fourth connection end together with the light emitting part and turning off the switch part when GDT isolation and turning on the switch part when conducting GDT, .

(9) a varistor connected in parallel to the second connection terminal and the fourth connection terminal together with the light-emitting portion, the varistor being disconnected at the operating voltage of the light-emitting portion and being conductive at an overvoltage; And a fuse that is connected to the varistor and the light emitting unit and is disconnected by heat generated due to the current flowing when the varistor is conducted and electrically isolated from the light emitting unit side to prevent damage due to the voltage rise of the ballast Wherein the light-emitting device is a light-emitting device.

(10) a first GDT provided between the first connecting portion and the first connecting end; And a second GDT provided between the second connection unit and the fourth connection unit, wherein the relay switch comprises: a first switch unit connected in parallel with the first GDT; A second switch part connected in parallel with the second GDT; And a coil part connected in parallel with the light emitting part to the second connection end and the fourth connection end and for turning on / off the first switch part and the second switch part.

(11) A wiring separating element provided between the first GDT and the first connecting terminal, wherein when a ballast voltage due to a circuit abnormality including a short and an open in the pn junction light emitting device illuminator rises, And a wiring separation element which is disconnected by a current flowing through the first GDT.

According to the one p-junction light emitting device lighting apparatus of the present disclosure, there is provided a p-junction light emitting device lighting apparatus having an electric shock preventive function.

Another pn junction light emitting device lighting apparatus according to the present disclosure provides a pn junction light emitting device lighting apparatus having a function of preventing the ballast from being damaged.

Another pn junction light emitting device lighting apparatus according to the present disclosure provides a pn junction light emitting device lighting apparatus having an electric shock prevention function and a stabilizer damage prevention function.

110; A first connecting portion 120; A second connector 130; GDT
140; Relay switch 150; Rectifying circuit 155; Set fuse
160; Zener diodes 165; Varistor 170; An electrolytic capacitor 190; The light-

Claims

A pn junction light emitting device illumination device having a first connection part and a second connection part, each of which is supplied with an electric power having a different polarity from a power supply device,
A light emitting portion having at least one p-junction light emitting element and electrically connected to the first connection portion and the second connection portion; And
An electric shock prevention circuit provided between at least one of the first connection portion and the second connection portion and the light emitting portion to prevent electric shock, wherein when only one of the first connection portion and the second connection portion is electrically connected to the power supply device, An electric shock prevention circuit for preventing electric shock in the other of the connection part and the second connection part which is not electrically connected to the power supply device and for connecting the power source to the light emitting part when the first connection part and the second connection part are electrically connected to each other, And a light emitting diode (LED).

The method according to claim 1,
The power supply is a ballast or stabilizer that can be used in a fluorescent lamp,
The pn junction light emitting device illumination device is a tubular LED lighting device in which the first connection portion and the second connection portion are electrically connected to the ballast,
And a rectifying circuit that electrically connects the first connecting portion, the second connecting portion, and the anti-shock circuit to the light emitting portion, and converts the AC power supplied from the ballast to a direct current.

The method according to claim 1,
The anti-shock circuit is:
An electrical element that becomes conductive when only one of the first connection and the second connection is electrically connected to the power supply and is conductive when both the first connection and the second connection are electrically connected; And
And a switching element that is turned off when the electric element is not turned on and is turned on after the electric element is turned on to bypass the electric element to provide a power supply path to the light emitting portion. Junction light emitting device illumination device.

The method according to claim 1,
An overvoltage preventing element that becomes non-conductive at the operating voltage of the light emitting portion and becomes conductive when the voltage of the power supply device rises due to a short or open in the pn junction light emitting device illumination device; And
And an interconnection isolation element connected to the light emitting portion and the overvoltage preventing element and electrically disconnected from the light emitting portion when the overvoltage preventing element is conducted and the current flows to prevent a voltage rise of the power supply device, Junction light emitting device illumination device.

The method of claim 2,
The anti-shock circuit is:
And the rectifying circuit is connected to one of the first connecting portion and the second connecting portion and is insulated when only one of the first connecting portion and the second connecting portion is connected to the ballast and when the first connecting portion and the second connecting portion are both connected to the ballast, device; And
A switching device connected in parallel with an electric device, the switching device being turned off at the time of insulation and being turned on after the electric device is turned on to switch the electric device Wherein the light emitting device comprises a light emitting diode.

The method of claim 5,
The electric device is a GDT (Gas Discharge Tube) that connects at least one of the first connecting portion and the second connecting portion to the rectifying circuit. When only one of the first connecting portion and the second connecting portion is electrically connected to the power supplying device, And a GDT in which an input terminal and an output terminal of the GDT are electrically connected when both the first connection portion and the second connection portion are electrically connected to the power supply,
Wherein the switching element includes a relay switch connected in parallel to the GDT.

The method of claim 6,
The rectifier circuit is:
A first connection terminal connected to the first connection portion;
A second connection terminal connected to an input side of the light emitting portion;
A third connection terminal connected to the second connection section;
A fourth connection terminal connected to the output side of the light emitting portion; And
And a diode provided between the first connection end and the second connection end, between the second connection end and the third connection end, between the third connection end and the fourth connection end, and between the fourth connection end and the first connection end To the light emitting device.

The method of claim 7,
The GDT is provided between the first connection part and the first connection end,
The relay switch is:
A switch unit connected in parallel with the GDT between the first connection unit and the first connection unit; And
And a coil part connected in parallel to the second connection end and the fourth connection end together with the light emitting part and turning off the switch part when GDT isolation and turning on the switch part when conducting the GDT.

The method of claim 8,
A varistor connected in parallel to the second connection terminal and the fourth connection terminal together with the light emitting portion, the varistor being disconnected at the operating voltage of the light emitting portion and being conductive at an overvoltage; And
And a fuse that is connected to the varistor and the light emitting unit and is disconnected by heat generated due to the current flowing when the varistor is conducted and electrically isolated from the light emitting unit side to prevent damage due to the voltage rise of the ballast unit Wherein the light-emitting device is a pn junction light-emitting device.

The method of claim 7,
A first GDT provided between the first connecting portion and the first connecting end; And
And a second GDT provided between the second connecting portion and the fourth connecting end,
The relay switch is:
A first switch unit connected in parallel to the first GDT;
A second switch part connected in parallel with the second GDT; And
And a coil part connected in parallel with the light emitting part to the second connection end and the fourth connection end and for turning on / off the first switch part and the second switch part.

The method of claim 10,
Wherein when the ballast voltage is increased due to a circuit abnormality including a short and an open in the pn junction light emitting device illumination device, the first GDT And a wiring separating element which is disconnected by a current flowing through the pn junction light emitting device.