KR20190090619A - Light emitting diode lamp compatible with various ballast stabilizeer - Google Patents

Abstract

The present invention relates to a light-emitting diode lamp compatible with various ballast stabilizers, comprising: a light source unit having one or more light-emitting diodes; and a driving unit which is able to supply power to and control the light source unit. The driving unit may comprise: a first access unit which includes: a first power connection unit to be connected to a first AC power of a lamp instrument having the ballast stabilizer, and a second power connection unit to be connected to a second AC power of the lamp instrument; a second access unit which includes: a third power connection unit to be connected to a third AC power of the lamp instrument, and a fourth power connection unit to be connected to a fourth AC power of the lamp instrument; a first rectification unit connected to the first access unit to be able to perform a full wave rectification on the AC supplied through the first access unit; a second rectification unit connected to the second access unit to be able to perform a half wave rectification on the AC supplied through the second access unit and to be electrically synthesized with the first rectification unit; and a constant current control unit formed to be able to supply the synthesized power of the first rectification unit and second rectification unit to the light source unit and control the rated power to be supplied to the light source unit. The present invention aims to provide the light-emitting diode lamp compatible with various ballast stabilizers, which is able to operate in a stable manner even if it is connected to various ballast stabilizers.

Description

Ballast-compatible LED lamps {LIGHT EMITTING DIODE LAMP COMPATIBLE WITH VARIOUS BALLAST STABILIZEER}

The present invention relates to a ballast compatible light emitting diode lamp.

Light emitting diodes (LEDs) use electroluminescent effects and have been applied to various fields since their appearance. Due to the advantages of low power consumption and long life compared to incandescent and fluorescent lamps that have been used in the lighting field, products using light emitting diodes are gradually replacing them.

Fluorescent lamps are used as luminaires for ballasts, which make light, which is a key component that creates a high voltage in the discharge tube and provides a stable voltage to sustain the discharge. Fluorescent lamps use a starter and a magnetic ballast (glow method) and an electronic ballast depending on the method. However, ordinary users who want to replace existing fluorescent lamps with light emitting diode lamps may find it difficult to understand how the ballast of the fluorescent lamps they have, or whether the starter should be removed to replace them with light emitting diode lamps, may be difficult or confusing. Failure to ensure correct mounting in accordance with the manual presented may occur.

As such, in various situations in which fluorescent lamps are used, a product capable of stable operation without considering conditions depending on the type of ballast or the presence or absence of a starter is considered from the standpoint of a light emitting diode lamp manufacturer who needs to replace an existing fluorescent lamp.

Related prior art:

Republic of Korea Patent Publication No. 10-2012-0024164 (Published March 14, 2012)

Republic of Korea Patent Registration No. 10-1652241 (August 31, 2016.)

It is an object of the present invention to provide a ballast compatible light emitting diode lamp capable of operating stably even when connected to various ballasts regardless of the type of ballast used in fluorescent lamps or the attachment or detachment of a starter.

Another object related to the present invention is to change the short-circuit portion of the power supplied from the ballast to facilitate the flow of electricity even for the glow method, and to change the rectification method to reduce the phenomenon of high voltage induced in the light emitting diode circuit. To make it work.

Another object related to the present invention is to be able to cut off in response to a high induced voltage that may be generated in the case of an aging ballast.

Ballast compatible light emitting diode lamp according to the present invention, the light source having at least one light emitting diode; And a driving unit configured to supply and control power to the light source unit, wherein the driving unit includes: a first power connection unit for connecting to a first AC power supply of a lamp mechanism having a ballast; and a second AC power supply of the lamp mechanism; A first connection portion having a second power supply connection portion for connection thereto; A second connecting portion having a third power supply connecting portion for connecting to a third AC power supply of the lamp mechanism and a fourth power connecting portion for connecting to a fourth AC power supply of the lamp mechanism; A first rectifying part connected to the first connecting part and configured to perform full wave rectification of the AC supplied through the first connecting part; A second rectifying part connected to the second connecting part, the second rectifying part being formed to enable half wave rectification of the AC supplied through the second connecting part, and electrically synthesized with the first rectifying part; And a constant current controller configured to supply the combined power of the first rectifying unit and the second rectifying unit to the light source unit, and to control the rated power to be supplied to the light source unit.

As an example related to the present invention, the ballast compatible light emitting diode lamp is connected to at least one of the first power connection portion or the second power connection portion, and is formed to be able to cut off the circuit in the event of rated voltage or current abnormality; It may further include a 1 PTC (PTC) device.

As an example related to the present invention, the third power connection unit and the fourth power connection unit may be shorted to each other.

As an example related to the present invention, the ballast compatible light emitting diode lamp is connected to the third power supply and the fourth power connection, and formed to be able to block the circuit in the event of a rated voltage or current abnormality, PTC) may further include a device.

As an example related to the present invention, the first rectifying unit may include first to fourth diodes in which the first power connecting unit and the second power connecting unit are connected in a bridge manner.

As an example related to the present invention, the second rectifying unit may include a fifth diode and a sixth diode connected in series, and the second PTC element may be connected between the fifth diode and the sixth diode.

As an example related to the present invention, the second rectifying unit may further include a first capacitor and a second capacitor, which are connected in series with each other and connected in parallel with the fifth diode and the sixth diode, and wherein the second PTC element May be connected between the first capacitor and the second capacitor.

As an example related to the present invention, the ballast compatible light emitting diode lamp may further include a third capacitor for smoothing the voltage of the combined power supply of the first rectifying unit and the second rectifying unit.

As an example related to the present invention, the ballast compatible light emitting diode lamp may further include a fuse connected to a synthetic power supply of the first rectifying unit and the second rectifying unit.

As an example related to the present invention, the ballast compatible light emitting diode lamp includes a positive connection terminal for connecting to the positive electrode of the light source unit, a negative connection terminal for connecting to the negative electrode of the light source unit, the constant current control unit, A driving IC for controlling pulse width modulation; A switching transistor connected to the cathode connection terminal; A plurality of resistors connected between the switching transistor and the current sensing unit of the driving IC and connected in parallel to each other; And an inductance connected between the switching transistor and the cathode connection terminal.

The present invention also provides a form which can be detached to a lamp mechanism having a ballast, comprising: a lamp body in which a light emitting diode substrate provided with a plurality of light emitting diodes is accommodated; And a driving unit installed in the lamp body and configured to supply and control power to the plurality of light emitting diodes, wherein the driving unit comprises: a first power connection unit connected to a first AC power supply of the lamp body; A first connecting portion having a second power supply connecting portion for connecting to a second AC power supply of the lamp body; A second connecting portion having a third power supply connecting portion for connecting to a third AC power supply of the lamp body and a fourth power connecting portion for connecting to a fourth AC power supply of the lamp body; A first rectifying part connected to the first connecting part and configured to full-wave rectify AC supplied through the first connecting part; A second rectifying portion connected to the second connecting portion and configured to half-wave rectify the AC supplied through the second connecting portion, and electrically synthesized with the first rectifying portion; And a constant current control unit configured to supply the combined power of the first rectifying unit and the second rectifying unit to the light source unit, and including a constant current control unit to control the rated power to be supplied to the light source unit. .

As an example related to the present invention, the ballast compatible light emitting diode lamp, the lamp unit is installed in one position of the lamp body, the power substrate is accommodated therein; A plurality of connection pins fixed to the socket part and configured to receive power from the ballast and transfer the power to the power board; And an elastic contact part installed on the power board and configured to elastically contact the connecting pin when the power board is fixed to the socket part.

According to the ballast-compatible LED lamp according to the present invention, the AC supplied from the ballast through the first power supply and the second power supply of the first connection portion is subjected to full-wave rectification, the third power supply and the fourth power supply of the second connection The alternating current supplied through the connection part is supplied to the light source unit by half-wave rectifying, and thus it is possible to provide a wiring structure applicable to the glow method on the half-wave rectifying unit side. This input method effectively prevents overheating of the diode that may occur in the conventional input method used after converting AC power from the ballast into direct current using respective bridge methods on both sides of the lamp. That is, the direct current converted by the first rectifying unit and the direct current converted by the second rectifying unit are superimposed to reduce the phenomenon of high voltage induced in the light emitting diode circuit, so that the light emitting diode lamp can be stably lit. In addition, by shorting the first power supply connection part and the second power supply connection part of the second rectifying part, the starter in the flow of the wiring generated when the resistor corresponding to the filament of the lamp needs to be removed in preparation for the electronic ballast is used. It is possible to eliminate the inconvenience that should be.

According to an example related to the present disclosure, noise generated during rectification may be removed by connecting the first capacitor and the second capacitor to the second rectifier.

According to another example related to the present disclosure, by adding a PTC element to the first rectifying unit or the second rectifying unit, when a voltage or current greater than the rated voltage flows in, the reliability of the product may be improved.

1 is a conceptual diagram of a lighting device 100 equipped with a ballast compatible light emitting diode lamp according to an embodiment related to the present invention
2 is a conceptual diagram of a lighting apparatus 100 ′ equipped with a ballast compatible light emitting diode lamp according to another exemplary embodiment of the present disclosure.
3 is a conceptual diagram of a lighting device 100 ″ equipped with a ballast compatible light emitting diode lamp according to another embodiment related to the present invention.
4 is a circuit diagram of a ballast compatible light emitting diode lamp 200 according to an embodiment related to the present invention
5 is a circuit diagram of a light emitting unit 241 according to an embodiment related to the present invention.
6 is an external perspective view of a ballast compatible light emitting diode lamp 200 according to an embodiment related to the present invention
FIG. 7 is an exploded perspective view illustrating an exploded view of the ballast compatible light emitting diode lamp 200 of FIG. 6.
8 is an exploded perspective view illustrating an assembly structure of a heat dissipation ring and a light emitting diode substrate according to an embodiment of the present invention;
9 is a conceptual view for explaining the assembly structure of the diffusion ring and the heat dissipation ring according to an embodiment of the present invention;
10 to 11 are views for explaining a connection structure of a connection pin and a power board according to an embodiment of the present invention, Figure 10 is a state before the power board is assembled to the lower socket segment, Figure 11 is a power board Drawing assembled to this lower socket segment
12 to 14 are views for explaining a connection structure of a connection pin and a power board according to another embodiment of the present invention, FIG. 12 is a state before the power board is assembled to the lower socket segment, and FIG. 13 is a power board FIG. 14 is an enlarged view showing the state in which the second extension part of the connection pin is connected to the cut-out receptacle of the power supply board.

Hereinafter, a ballast-compatible LED lamp according to the present invention will be described in detail with reference to the accompanying drawings.

The ballast compatible LED lamp according to the present invention is excellent in stability and function as a lamp even when only the fluorescent lamp is replaced with a light emitting diode lamp regardless of the type of ballast, starter or ballast in an existing lighting system having elements for lighting a fluorescent lamp. It is configured to secure.

1 illustrates a concept of a lighting device 100 equipped with a ballast compatible light emitting diode lamp 200 according to an embodiment related to the present invention. The electrical configuration included in the ballast compatible LED lamp 200 will be described later.

As shown in FIG. 1, an AC power source is connected to a magnetic ballast 101, a light emitting diode lamp 200, and a stutter 102 to form a circuit. The magnetic ballast 101 receives AC power from the outside and provides AC power to the LED lamp 200 as in the case where the fluorescent lamp is mounted. The light emitting diode lamp 200 may have a shape that is similar to or modified from a fluorescent lamp that is conventionally mounted in terms of size or shape. However, the structure for the light emitting diode lamp 200 to be electrically connected to the lamp mechanism may be the same as the conventional fluorescent lamp. Accordingly, the light emitting diode lamp 200 is connected to the magnetic ballast 101 and the starter 102 (glow starter or rapid starter), which are necessary elements when the conventional fluorescent lamp is connected, and lights up even when the starter 102 is not present. This is possibly configured.

2 is a conceptual diagram of a lighting device 100 ′ equipped with a light emitting diode lamp 200 according to another embodiment related to the present invention. In this example, the electronic ballast 101 'that does not require a starter is used instead of the magnetic ballast 101. The light emitting diode lamp 200 includes electrical elements for receiving power from the electronic ballast 101 'like the fluorescent lamp is mounted even when there is no starter.

3 is a conceptual diagram of a lighting device 100 " equipped with a light emitting diode lamp according to another embodiment related to the present invention. In this example, unlike the light emitting diode lamp 200 of FIGS. A light emitting diode lamp 200 'formed in the form of a straight rod is mounted. In addition, a magnetic ballast 101 " and a starter 102' are mounted, but similarly to FIG. A light emitting diode lamp 200 'related to the invention can be used.

As such, the light emitting diode lamps 200 and 200 ′ related to the present invention in various lighting apparatuses using conventional fluorescent lamps can be used interchangeably with various ballasts with various advantages of the light emitting diodes, that is, low power and high durability. Has an advantage.

4 is a circuit diagram of a light emitting diode lamp 200 according to an embodiment related to the present invention, and FIG. 5 is a circuit diagram of a light emitting unit 241 according to an example related to the present invention.

The light emitting diode lamp 200 according to the present invention includes a light source unit 241 having at least one light emitting diode, and a driving unit 201 configured to supply and control power to the light source unit 241. The driving unit 201 receives AC power from the ballasts 101, 101 ′, 101 ″ of the luminaire as shown in FIGS. 1 to 3, and applies it to the light source unit 241. A plurality of light emitting units constituting the light source unit 241 are provided. The diodes may be arranged in a combination of parallel and series arrays, as shown in Fig. 5. In the light source unit 241, six groups of LED groups connected in parallel are connected in series to form ten groups.

According to FIG. 4, the driving unit 201 includes a first connecting portion 202, a second connecting portion 203, a first rectifying portion 204, a second rectifying portion 205, a constant current controller 206, and the like.

The first connecting portion 202 and the second connecting portion 203 are necessary for the light emitting diode lamp 200 to be connected to the lamp mechanism in order to receive power. Specifically, the first connecting portion 202 is connected to the first power supply AC1 for connecting to the first AC power supply of the lamp mechanism having a ballast as shown in FIGS. 1 to 3 and the second AC power supply of the lamp mechanism. It has a second power supply connection unit (AC2) for. At least one of the first power connection unit AC1 or the second power connection unit AC2 may be connected to a first PCT element PCT1 configured to block a circuit when a rated voltage or current is abnormal.

The second connection portion 203 has a third power supply connection AC3 for connecting to the third AC power supply of the lamp mechanism and a fourth power supply connection AC4 for connection to the fourth AC power supply of the lamp mechanism. In the case of a circular lamp as in the case of FIG. 1 or 2, the second connector 203 is disposed adjacent to the first connector 202 or in the case of a straight rod as in the case of FIG. 3. Can be placed on the opposite side of the. The third power connector AC3 and the fourth power connector AC4 may be formed to be shorted with each other. A second PTC element PCT2 may be connected to the shorted third power supply connection unit AC3 and the fourth power supply connection unit AC4 so as to cut off the circuit when the rated voltage or current is abnormal.

The first rectifying part 204 is connected to the first connecting part 202 and is formed to perform full wave rectification of the AC supplied through the first connecting part 202. As illustrated in FIG. 4, the first rectifier 204 may include a first diode D1, a second diode D2, and a third to connect the first power connector AC1 and the second power connector AC2 in a bridged manner. It may include a diode D3 and a fourth diode D4.

The second rectifying part 205 is connected to the second connecting part 203 and is formed to allow half wave rectification of the AC supplied through the second connecting part 203. As shown in FIG. 1, the second rectifying unit 205 includes a fifth diode D5 and a sixth diode D6 connected in series, and the second PTC element PCT2 includes the fifth diode D5 and the sixth diode. It is connected between the diodes D6. The second rectifying unit 205 includes a first capacitor C1 and a second capacitor C2 connected in parallel with the fifth diode D5 and the sixth diode D6. The first capacitor C1 and the second capacitor C2 serve to remove noise generated during half-wave current. The first capacitor C1 and the second capacitor C2 are connected in series, and the second PCC element PCT2 is connected between the first capacitor C1 and the second capacitor C2.

The second rectifier 205 is configured to be electrically synthesized with the first rectifier 204. The driving unit 201 may be arranged with a third capacitor (C3) for smoothing the voltage of the composite power supply of the first rectifying unit 204 and the second rectifying unit 205, the abnormal current of the rated current even after the conversion to direct current A fuse F1 may be connected to block the influence on the diode circuit side.

As described above, the third power connection part AC3 and the fourth power connection part AC4 are short-circuited in the first rectifying part 204 to serve as a filament of the fluorescent lamp. In this case, the first AC power input through the first power connection unit AC1 enters the first diode D1 and then turns on the light source unit 241 and returns to the ballast through the third diode D3. Even in the case of electric flow there is no problem.

The voltages applied to the third power supply AC3 and the fourth power supply AC4 are half-wave rectified, and when an alternating voltage is applied, the positive period passes and the negative period is blocked, resulting in only a positive waveform. do. In other words, it is forward biased in the positive period and blocked by the action of the diode in the negative period. The direct current rectified by the first rectifying unit 204 and the direct current half-wave rectified by the second rectifying unit 205 may reduce the phenomenon that high voltage is induced in the light emitting diode circuit, and the light source unit 241 is stable. To keep the lamp on. If the light emitting diode lamp 200 is mounted to a luminaire using an old ballast, a high voltage may be induced by the ballast, and in this case, the first PTCC and the second PTCC ( PCT2) can cut off the voltage and current above the rating to enhance the reliability of the product.

The constant current controller 206 supplies the combined power of the first rectifying unit 204 and the second rectifying unit 205 to the light source unit 241, and controls the rated power to be supplied to the light source unit 241. The driving unit 201 has an anode connection terminal for connecting to the anode LED + of the light source unit 241 and a cathode connection terminal for connecting to the cathode LED- of the light source unit 241. In connection with the present invention, the constant current controller 206 includes a driving IC U1 for controlling pulse width modulation, a switching transistor Q1 connected to a cathode connection terminal, a driving transistor Q1 and a driving transistor. A plurality of resistors R5, R6, R7, R8, and R9 connected between the current sensing units CS of the IC U1 and connected in parallel to each other, and an inductance L3 connected between the switching transistor Q1 and the cathode connection terminal. It may include. The inductance L3 prevents a pulse of the power output through the cathode LED- of the light source 241 from entering the switching transistor Q1.

The driving IC U1 is a current flowing through the switching transistor Q1 based on a result of comparing the current sensing unit CS, which is the voltage of the resistors R5, R6, R7, R8, and R9, with a predetermined reference voltage set therein. And outputs a pulse signal controlling the gate terminal voltage of the switching transistor Q1 through the GATE terminal according to the result. In this case, the duty ratio of the pulse signal may be determined by the resistor R3.

The resistor R4 and the diode D8 connected to the gate terminal of the switching transistor Q1 remove the switching noise generated by the switching operation of the switching transistor Q1 to form a damping circuit. The capacitor C5 connected in parallel with the switching transistor Q1 suppresses switching noise generated due to the switching operation of the switching transistor Q1. Accordingly, the electronic devices around the LED lamp 200 may operate normally without being affected by the switching noise generated by the LED lamp 200.

The diode D7 prevents destruction of the switching transistor Q1 due to the direct current supplied to the anode LED + of the light source 241 directly flowing into the drain terminal of the switching transistor Q1.

The capacitors C6 and C7 and the resistor R10 remove noise or pulses included in the DC power applied to the anode LED + of the light source unit 241.

As described above, the DC voltage generated by the full-wave rectification method of the first rectifying unit 204 and the half-wave rectifying method of the second rectifying unit 205 passes through the fuse F1, and the smoothing operation is performed by the third capacitor C3. The rectified voltage is applied to the light source unit 241, passes through the inductance L3, and is then switched through the driving IC U1 and the switching transistor Q1, and by the resistors R5, R6, R7, R8, and R9. Constant current control adjustments are made.

FIG. 6 is a perspective view of a light emitting diode lamp 200 according to an embodiment of the present invention, and FIG. 7 is a view showing the light emitting diode lamp 200 of FIG. 6 viewed from the opposite side.

As shown in these figures, the light emitting diode lamp 200 of this example has a shape having a lamp body 210 and a socket portion 250. The lamp body 210 is circular in shape and exerts an illumination effect by a light emitting diode disposed therein. The socket portion 250 is provided with four connection pins 280 like the connection structure of the fluorescent lamp. The connection pin 280 may be connected to a ballast, which is an electrical element included in a conventional fluorescent lamp luminaire. To this end, the inside of the socket 250 may be provided with means for converting into a power source for the operation of the light emitting diode in the lamp body 210 is supplied with power from the electrical element applied to the fluorescent lamp luminaire. .

The lamp main body 210 has a shape in which a diffusion ring 220 that emits light to the outside and a heat dissipation ring 230 are formed to support the light source therein and to dissipate heat generated from the light source. . The diffusion ring 220 and the heat dissipation ring 230 are formed in a circular shape and assembled together to form a single tube shape. The diffusion ring 220 may have a relatively larger shape than the heat dissipation ring 230. Accordingly, the assembly line PL of the diffusion ring 220 and the heat dissipation ring 230 is positioned above the upper and lower center lines of the lamp body 210 (see FIG. 6).

The socket part 250 may have a form in which the first socket segment 260 and the second socket segment 270 are assembled. Below, these detailed structures are demonstrated.

FIG. 7 is an exploded perspective view illustrating an exploded view of the LED lamp 200 of FIG. 6, and FIG. 8 is an exploded perspective view illustrating an assembling structure of the heat dissipation ring 230 and the LED panel 240 according to the present invention. to be.

According to these drawings, a light emitting diode substrate 240 provided with a plurality of light emitting diodes 241 arranged in a circle is housed inside the lamp body 210. In terms of mechanical aspects, the light emitting diode substrate 240 is fixed to the heat dissipation ring 230. To this end, a plurality of hooks 236 may be formed in the heat dissipation ring 230 to fix the circular LED panel 240. The hooks 236 may be arranged in two rows to fix the inner circumference and the outer circumference of the light emitting diode substrate 240, respectively.

The light emitting diode substrate 240 may be a combination of a plurality of arc-shaped segment substrates 240A, 240B, and 240C. In order to assemble the plurality of segment substrates 240A, 240B, and 240C constituting the light emitting diode substrate 240, the heat dissipation ring 230 is formed with a stopper protrusion 233 for guiding a reference position of the first segment substrate 240A. Can be.

The power supply substrate 290 is disposed in the socket part 250, unlike the light emitting diode substrate 240 in which the light emitting diode 241 is disposed. The power substrate 290 is configured to convert power provided through the connection pin 280 into power for the operation of the light emitting diode 241.

9 is a conceptual view illustrating an assembly structure of the diffusion ring 220 and the heat dissipation ring 230 according to the present invention. The light emitting diode lamp 200 according to the present invention may include a fastening part for fastening the heat dissipation ring 230 and the diffusion ring. The fastening part may have a shape including a first protrusion 225 formed on the diffusion ring 220 and a first hook 235 formed on the heat dissipation ring 230. A plurality of first protrusions 225 may be formed at the inner circumferential side end portion and the outer circumferential side end portion of the diffusion ring 220 in a circumferential direction, and the first hook 235 may also be formed at an inner circumferential side end portion of the heat dissipation ring 230. It may be formed at a position corresponding to the position of the first protrusion 225 of the outer peripheral end. The first hook 235 is caught by the first protrusion 225 when the heat dissipation ring 230 and the diffusion ring 220 are pressed in the vertical direction in a state where the heat dissipation ring 230 and the diffusion ring 220 are in contact with each other. It can be formed (snap fit method).

In addition, the fastening part includes a first slide groove 227 formed around the first protrusion 225 of the diffusion ring 220 and a second slide formed around the first hook 235 of the heat dissipation ring 230. It may include a groove 237. The first slide groove 227 is a heat dissipation ring 230 or a diffusion ring in a state in which the heat dissipation ring 230 and the diffusion ring 220 abut so that the first hook 235 is staggered with respect to the first protrusion 225. When the 220 is rotated, the moving space of the first hook 235 is provided. Similarly, the second slide groove 237 has a heat dissipation ring 230 in a state where the heat dissipation ring 230 and the diffusion ring 220 are opposed to each other so that the first protrusion 225 is staggered with respect to the first hook 235. Or when the diffusion ring 220 is rotated to provide a moving space of the first projection 225.

10 to 11 are views for explaining the connection structure of the connecting pin 280 and the power board 290 according to the present invention, Figure 10 is a power board 290 is assembled to the second socket segment 270 11 is a state in which the power board 290 is assembled to the second socket segment 270.

As shown in these figures, the second socket segment 270 may have a hook 273 formed to engage the power substrate 290 when the power substrate 290 is pressed. The connecting pin 280 may include a first extension part 281 protruding outward of the second socket segment 270, and a second extension part 282 protruding inward of the second socket segment 270. have. The second socket segment 270 may have a protruding support part 274 protruding inwardly so as to increase the fixing area of the first extension part 281. The hook 273 serves to keep the power substrate 290 at a constant distance from the connection pin 280.

The power substrate 290 may include an elastic contact portion 295 formed to allow the connection pin 280 to elastically contact when the power substrate 290 is fixed to the second socket segment 270. The elastic contact portion 295 may be formed in the shape of a dome that can be pressed in contact with the end of the second extension portion 282.

The power substrate 290 includes a conductive pad portion 291 in which the elastic contact portion 295 is in contact with a surface facing the second extension portion 282, and an elastic contact portion 295 at an edge portion of the elastic contact portion 295. The adhesive film may be fixed to the conductive pad part 291. The conductive pad portion 291 is in contact with the elastic contact portion 295 and, unlike the pad structure used for the keypad technology using the conductive dome, only one type of pattern is disposed. In addition, since the second extension part 282 of the connecting pin 280 is in contact with each other, the shape of the conductive dome is different from that of covering the conductive dome with an adhesive film as an insulator for fixing to the substrate.

According to the mechanical structure of the light emitting diode lamp 200, the light emitting diode substrate 240 is disposed inside the lamp body 210, and the power supply substrate (independent of the light emitting diode substrate) is provided inside the socket portion 250. By disposing the 290, the fixing force of the power board 290 may be stably maintained when the socket part 250 is assembled, and the electrical connection to the connection pins 280 of the power board 290 may be improved. The elastic contact portion 295 is effective for a stable connection structure, and can improve mass productivity in terms of manufacturing. In addition, by applying the hook 235 and the slide groove 237 to the heat dissipation ring 230 and the diffusion ring 220, it is possible to assemble by the slide method together with the assembly of the snap-fit method by pressing to improve the assemblability. do.

12 to 14 are views for explaining a connection structure between the connecting pin 380 and the power board 390 according to another embodiment related to the present invention, Figure 12 is a power socket 390 is a second socket segment 370 13 is a state in which the power board 390 is assembled to the second socket segment 370, and FIG. 14 is a drawing of the connection pins in the cut-out receptacle 398 of the power board 390. An enlarged view showing a state in which the two extension portions 382 are connected.

In the present example, the power supply substrate 390 is equipped with a cutaway receptacle 398 instead of the elastic contact portion 295 of FIG. 10. The openable receptacle 398 may be formed to elastically insert the second extension portion 382 of the connecting pin 390. The cutaway receptacle 398 is a cylindrical conductor in which the cutout 398a is formed, and is mounted on the power supply board 390. When the second extension portion 382 of the connecting pin 390 is inserted, the cutout 398a is formed. By elastically opening, the connection pin 390 maintains a stable connection state.

The ballast compatible light emitting diode lamp described above is not limited to the configuration and method of the described embodiments. The embodiments may be configured so that all or some of the embodiments may be selectively combined so that various modifications may be made.

100, 100 ', 100 ": Illuminator 101, 101": Magnetic ballast
101 ': electric ballast 102, 102': starter
200: light emitting diode lamp 201: driving unit
202: first connecting portion 203: second connecting portion
204: first rectifying unit 205: second rectifying unit
206: constant current controller 210: lamp body
220: diffusion ring 225: first projection
227: first slide groove 230: heat dissipation ring
235: first hook 236: second hook
237: second slide groove 240: light emitting diode substrate
241: light source portion 250: socket portion
260: first socket segment 270: second socket segment
273: third hook 274: protruding support
280: connection pin 281: first extension portion
282: second extension portion 290: power substrate
291: conductive pad portion 295: elastic contact portion
296: adhesive film AC1: first power connection
AC2: second power connector AC3: third power connector
AC4: fourth power supply connector PTC1: first PTC element
PTC2: second PTC device

Claims (12)

A light source unit having at least one light emitting diode; And
A driving unit configured to supply and control power to the light source unit, wherein the driving unit is
A first connecting portion having a first power supply connecting portion for connecting to a first AC power supply of the lamp mechanism having a ballast and a second power connecting portion for connecting to a second AC power supply of the lamp mechanism;
A second connecting portion having a third power supply connecting portion for connecting to a third AC power supply of the lamp mechanism and a fourth power connecting portion for connecting to a fourth AC power supply of the lamp mechanism;
A first rectifying part connected to the first connecting part and configured to perform full wave rectification of the AC supplied through the first connecting part;
A second rectifying part connected to the second connecting part, the second rectifying part being formed to enable half wave rectification of the AC supplied through the second connecting part, and electrically synthesized with the first rectifying part; And
And a constant current control unit configured to supply the combined power of the first rectifying unit and the second rectifying unit to the light source unit and to control the rated power to be supplied to the light source unit.
The method of claim 1,
A ballast compatible light emitting diode further comprising a first PTC element connected to at least one of the first power connection part and the second power connection part, and configured to cut off a circuit when a rated voltage or current is abnormal. lamp.
The method of claim 1,
The third power supply and the fourth power connection is short circuit (short) mutually, ballast compatible light emitting diode lamp.
The method of claim 3,
And a second PTC device connected to the third power supply unit and the fourth power supply unit, and configured to block a circuit when a rated voltage or current is abnormal.
The method of claim 1,
The first rectifier comprises a first diode to a fourth diode to the first power connection and the second power connection in a bridge manner, ballast compatible light emitting diode lamp.
5. The method of claim 4,
The second rectifying unit includes a fifth diode and a sixth diode connected in series,
And the second PTC element is connected between the fifth diode and the sixth diode.
The method according to claim 6,
The second rectifier further includes a first capacitor and a second capacitor connected in series with each other and connected in parallel with the fifth diode and the sixth diode.
The second PCC element is connected between the first capacitor and the second capacitor, ballast compatible light emitting diode lamp.
The method of claim 1,
And a third capacitor for smoothing the voltages of the combined power supplies of the first rectifying unit and the second rectifying unit.
The method of claim 1,
And a fuse connected to the composite power supply of the first rectifying unit and the second rectifying unit.
The method of claim 1,
An anode connection terminal for connecting to the anode of the light source unit, and a cathode connection terminal for connecting to the cathode of the light source unit,
The constant current control unit,
A driving IC for controlling pulse width modulation;
A switching transistor connected to the cathode connection terminal;
A plurality of resistors connected between the switching transistor and the current sensing unit of the driving IC and connected in parallel to each other; And
And a inductance connected between the switching transistor and the cathode connection terminal.
A lamp body that can be detached from a lamp mechanism having a ballast, comprising: a lamp body in which a light emitting diode substrate provided with a plurality of light emitting diodes is accommodated; And
A driving unit installed in the lamp main body and configured to supply and control power to the plurality of light emitting diodes;
A first connecting portion having a first power supply connecting portion for connecting to a first AC power supply of the lamp body and a second power connecting portion for connecting to a second AC power supply of the lamp body;
A second connecting portion having a third power supply connecting portion for connecting to a third AC power supply of the lamp body and a fourth power connecting portion for connecting to a fourth AC power supply of the lamp body;
A first rectifying part connected to the first connecting part and configured to full-wave rectify AC supplied through the first connecting part;
A second rectifying portion connected to the second connecting portion and configured to half-wave rectify the AC supplied through the second connecting portion, and electrically synthesized with the first rectifying portion; And
And a constant current control unit configured to supply the combined power of the first rectifying unit and the second rectifying unit to the light source unit and to control the rated power to be supplied to the light source unit.
12. The method of claim 11,
A socket part installed at one position of the lamp main body and accommodating a power substrate therein;
A plurality of connection pins fixed to the socket part and configured to receive power from the ballast and transfer the power to the power board; And
And a resilient contact portion installed on the power substrate and configured to elastically contact the connection pin when the power substrate is fixed to the socket portion.

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