JP6455785B2 - Lighting device and lighting fixture - Google Patents

Description

  The present invention relates to a lighting device and a lighting fixture, and more particularly to a lighting device using a light emitting diode as a light source, and a lighting fixture including the lighting device.

  As a conventional example, an illumination device described in Patent Document 1 is illustrated. The lighting device described in Patent Literature 1 includes an LED module and an LED drive circuit. The LED module includes a plurality of LED segments connected in series and a plurality of terminals electrically connected to both ends of each LED segment. The LED driving circuit includes a plurality of terminals connected to the LED module, a plurality of terminals connected in a one-to-one relationship, an input terminal to which an AC voltage is input from a power source, and a plurality of switching units that open and close between adjacent terminals. A device, a current control device, and a control circuit;

  The LED driving circuit is configured to sequentially drive each LED segment of the LED module by turning on and off the plurality of switching devices in order according to the level of the AC voltage input from the input terminal.

Special table 2014-513383 gazette

  By the way, in the conventional example described in Patent Document 1, a plurality of terminals respectively provided in the LED module and the LED drive circuit may be mounted at intervals along the longitudinal direction of the mounting board (printed wiring board). In this case, since each terminal is separated, there is a problem that it is difficult to perform connection work during assembly.

  The present invention has been made in view of the above problems, and an object thereof is to improve the workability of assembly.

  The lighting device of the present invention includes N light source units (N is a natural number of 2 or more) each configured by electrically connecting a plurality of light emitting diodes in series, and a lighting circuit for lighting the N light source units. Part, a first substrate formed in a long plate shape and mounted so that the N light source units are arranged in the longitudinal direction, and a second substrate on which the lighting circuit unit is mounted, One substrate is mounted such that the light source portions from No. 1 to N are arranged in order along the longitudinal direction, and one pole of the i-th light source portion and one of the i + 1-th light source portions are mounted. N-1 first conductors electrically connecting the poles in series (i is a natural number from 1 to N-1), and first connectors electrically connected to both ends of the N light source units, respectively The lighting circuit unit includes a pair of input terminals to which an AC voltage / AC current is input from the outside, and the A rectifier that rectifies an AC voltage applied between the power terminals, and N constant current circuits that respectively supply a constant current to the N light source units, and the second substrate includes a pair of the input A terminal, the rectifier, and the N constant current circuits are mounted, and one pole of the jth constant current circuit and one pole of the j + 1th constant current circuit are electrically connected in series. One second conductor (j is a natural number from 1 to N-1) and N second constant current circuits that are electrically connected to the constant current circuits, respectively. It is mounted on one end in the longitudinal direction of one substrate, and is configured to be detachable and electrically connected to the second connector mounted on the end of the second substrate.

  The lighting fixture of this invention is equipped with a lighting device and the fixture main body which supports the said lighting device, It is characterized by the above-mentioned.

  The illuminating device and the luminaire of the present invention have an effect that the workability of assembly can be improved.

It is a circuit block diagram which shows the illuminating device which concerns on embodiment. It is the front view which abbreviate | omitted partially which shows the illuminating device which concerns on embodiment. It is a perspective view which shows the lighting fixture which concerns on embodiment. 4A is a front view of an arm in the lighting fixture according to the embodiment, and FIG. 4B is a side view of the arm in the lighting fixture according to the embodiment. It is a front view which shows the illuminating device which concerns on another embodiment.

  The illumination device according to this embodiment will be described in detail with reference to FIGS.

  As illustrated in FIG. 1, the lighting device of the present embodiment includes a lighting module 1 and an LED module 2. The LED module 2 includes N (three in the illustrated example) light source units (first light source unit 20A, second light source unit 20B, 3 light source unit 20C) and a first substrate 21 (see FIGS. 1 and 2).

  As shown in FIGS. 1 and 2, the first light source unit 20A includes a series circuit of a plurality (for example, 12) of light emitting diodes (LEDs) 201 to 212 and a smoothing capacitor C1. As shown in FIG. 2, the second light source unit 20B includes a series circuit of a plurality of (for example, eight) LEDs 213 to 220 and a smoothing capacitor C2. As shown in FIG. 2, the third light source unit 20 </ b> C includes a series circuit of a plurality of (for example, five) LEDs 221 to 225 and a smoothing capacitor C <b> 3. However, the number of the LEDs 201 to 225 constituting each of the light source units 20A to 20C is an example, and is not limited to these numbers. In the three light source units 20A to 20C, the anodes and cathodes of the two adjacent LEDs 201 to 225 and the cathodes and the anodes are electrically connected by the first conductors 23, respectively (see FIGS. 1 and 2). Here, the first light source unit 20A is turned on when the cathode of the first LED 212 is the negative electrode, the anode of the rear LED 201 is the positive electrode, and the potential difference between the negative electrode and the positive electrode exceeds the first threshold voltage V1. Are configured to emit light (light up). Similarly, the second light source unit 20B is turned on when the cathode of the leading LED 220 is the negative electrode, the anode of the rear LED 213 is the positive electrode, and the potential difference between the negative electrode and the positive electrode exceeds the second threshold voltage V2. It is configured to emit light (light up). Similarly, the third light source unit 20C is turned on when the cathode of the first LED 225 is the negative electrode, the anode of the rear LED 221 is the positive electrode, and the potential difference between the negative electrode and the positive electrode exceeds the third threshold voltage V3. Are configured to emit light (light up). The smoothing capacitors C1, C2, and C3 are electrically connected in parallel with the LED series circuit in the first to third light source units 20A to 20C.

  As shown in FIGS. 1 and 2, the lighting module 1 generates a pair of input terminals 12A and 12B to which an AC voltage / AC current is input from an AC power source 5 and an AC voltage applied between the input terminals 12A and 12B. And a rectifier 11 for rectification. The rectifier 11 is preferably composed of a diode bridge. Further, the lighting module 1 has the same number (three in the present embodiment) of constant current circuits (first constant current circuit 10A and second constant) that flow a constant current to each of the three light source units 20A to 20C. A constant current circuit 10B and a third constant current circuit 10C).

  As shown in FIG. 1, the first constant current circuit 10A includes a MOS field effect transistor Q1, a bipolar transistor Q11, and three resistors R11, R12, and R13. The drain of the field effect transistor Q1 is electrically connected to the negative electrode of the first light source unit 20A. The source of field effect transistor Q1 is electrically connected to the base of bipolar transistor Q11 via resistor R12. The gate of the field effect transistor Q1 is electrically connected to one end of the resistor R13 and the collector of the bipolar transistor Q11. The other end of the resistor R13 is electrically connected to the drain of the field effect transistor Q1. The emitter of the bipolar transistor Q11 is electrically connected to one end of the resistor R11 and the output terminal on the low potential side of the rectifier 11. The other end of the resistor R11 is electrically connected to the source of the field effect transistor Q1. The first constant current circuit 10A configured as described above is well known in the art, and operates to keep the current flowing through the resistor R11 constant.

  As shown in FIG. 1, the second constant current circuit 10B includes a MOS field effect transistor Q2, a bipolar transistor Q12, and three resistors R21, R22, and R23. The drain of the field effect transistor Q2 is electrically connected to the negative electrode of the second light source unit 20B. The source of the field effect transistor Q2 is electrically connected to the base of the bipolar transistor Q12 via the resistor R22. The gate of the field effect transistor Q2 is electrically connected to one end of the resistor R23 and the collector of the bipolar transistor Q12. The other end of the resistor R23 is electrically connected to the drain of the field effect transistor Q2. The emitter of the bipolar transistor Q12 is electrically connected to one end of the resistor R21 and one end of the resistor R11 of the first constant current circuit 10A. The other end of the resistor R21 is electrically connected to the source of the field effect transistor Q2. Similar to the first constant current circuit 10A, the second constant current circuit 10B operates to keep the current flowing through the resistor R21 constant.

  As shown in FIG. 1, the third constant current circuit 10C includes a MOS field effect transistor Q3, a bipolar transistor Q13, and three resistors R31, R32, and R33. The drain of the field effect transistor Q3 is electrically connected to the negative electrode of the third light source unit 20C. The source of field effect transistor Q3 is electrically connected to the base of bipolar transistor Q13 via resistor R32. The gate of field effect transistor Q3 is electrically connected to one end of resistor R33 and the collector of bipolar transistor Q13. The other end of the resistor R33 is electrically connected to the drain of the field effect transistor Q3. The emitter of the bipolar transistor Q13 is electrically connected to one end of the resistor R31 and one end of the resistor R21 of the second constant current circuit 10B. The other end of the resistor R31 is electrically connected to the source of the field effect transistor Q3. Similar to the first constant current circuit 10A and the second constant current circuit 10B, the third constant current circuit 10C operates so as to make the current flowing through the resistor R31 constant.

  Next, the operation of the lighting module 1 will be described. When the pulsating output voltage of the rectifier 11 rises from the zero cross and exceeds the first threshold voltage V1, the first light source unit 20A conducts and emits light (lights up). At this time, the first constant current circuit 10A operates to make the current flowing through the first light source unit 20A constant. When the pulsating output voltage of the rectifier 11 further rises and exceeds the combined voltage V1 + V2 of the first threshold voltage V1 and the second threshold voltage V2, the second light source unit 20B becomes conductive and emits light (lights up). ) At this time, the second constant current circuit 10B operates to constant the current flowing through the first light source unit 20A and the second light source unit 20B. When the pulsating output voltage of the rectifier 11 further rises and exceeds the combined voltage V1 + V2 + V3 of the first threshold voltage V1, the second threshold voltage V2, and the third threshold voltage V3, the third light source The part 20C conducts and emits light (lights up). At this time, the third constant current circuit 10C operates to change the current flowing through the first light source unit 20A, the second light source unit 20B, and the third light source unit 20C to a constant current.

  On the other hand, the pulsating output voltage of the rectifier 11 decreases past the peak value and falls below the combined voltage V1 + V2 + V3 of the first threshold voltage V1, the second threshold voltage V2, and the third threshold voltage V3. Then, the charge of the capacitor C3 is discharged, and the lighting of the third light source unit 20C is maintained. At this time, the third constant current circuit 10C stops. When the pulsating output voltage of the rectifier 11 further decreases and falls below the combined voltage V1 + V2 of the first threshold voltage V1 and the second threshold voltage V2, the charged charge of the capacitor C2 is discharged and the second light source The lighting of the part 20B is maintained. At this time, the second constant current circuit 10B stops. When the pulsating output voltage of the rectifier 11 further falls and falls below the first threshold voltage V1, the charge of the capacitor C1 is discharged and the lighting of the first light source unit 20A is maintained. At this time, the first constant current circuit 10A stops.

  The lighting module 1 turns on the LED module 2 by repeating the above-described operation every half cycle of the pulsating output voltage.

  Next, the structure of the lighting module 1 and the LED module 2 will be described in more detail with reference to FIGS. 1 and 2. However, in the following description, the longitudinal direction of the first substrate 21 of the LED module 2 is defined as the left-right direction, and the short direction is defined as the up-down direction.

  As shown in FIG. 2, the 25 LEDs 201 to 225 of the LED module 2 are mounted along the left-right direction of the first substrate 21 so as to be arranged in a line at equal intervals. The LEDs 201 to 225 are electrically connected by a first conductor 23 (for example, copper foil) formed on the surface of the first substrate 21. A first connector 22 is mounted on the right end of the first substrate 21.

  The first connector 22 has four contacts (a first contact 22A, a second contact 22B, a third contact 22C, and a fourth contact 22D). The contact terminal of the first contact 22A is electrically connected to the positive electrode (the anode of the LED 201) of the first light source unit 20A through the conductor 24A. The contact terminal of the second contact 22B is electrically connected to the negative electrode of the first light source unit 20A (the cathode of the LED 212) and the positive electrode of the second light source unit 20B (the anode of the LED 213) through the conductor 24C. The contact terminal of the third contact 22C is electrically connected to the negative electrode of the second light source unit 20B (the cathode of the LED 220) and the positive electrode of the third light source unit 20C (the anode of the LED 221) through the conductor 24D. The contact terminal of the fourth contact 22D is electrically connected to the negative electrode of the third light source unit 20C (the cathode of the LED 225) through the conductor 24B.

  On the other hand, the lighting module 1 is configured by mounting three constant current circuits 10A to 10C, a rectifier 11, a pair of input terminals 12A and 12B, and the like on a second substrate 14, as shown in FIG. The second substrate 14 is preferably formed in a rectangular (for example, square) plate shape having a width dimension substantially equal to the width dimension in the short direction (vertical direction) of the first substrate 21. The three constant current circuits 10A to 10C are mounted on the lower end portion of the second substrate 14 so as to be arranged at equal intervals along the left-right direction. The negative electrode of the first constant current circuit 10A (the connection point between the source of the field effect transistor Q1 and the resistor R11) and the negative electrode of the second constant current circuit 10B (the connection point between the emitter of the bipolar transistor Q11 and the resistor R11). Are electrically connected via the second conductor 15 (see FIG. 1). Further, the negative electrode of the second constant current circuit 10B (the connection point between the source of the field effect transistor Q2 and the resistor R21) and the negative electrode of the third constant current circuit 10C (the connection point between the emitter of the bipolar transistor Q12 and the resistor R21). Are electrically connected via the second conductor 15 (see FIG. 1).

  The pair of input terminals 12 </ b> A and 12 </ b> B are mounted on the upper right portion of the second substrate 14 side by side in the vertical direction. The rectifier 11 is mounted on the upper center of the second substrate 14 side by side with the pair of input terminals 12A and 12B (see FIG. 2). One input terminal 12A and the input terminal on the high potential side of the rectifier 11 are electrically connected through a conductor 165. The other input terminal 12B and the input terminal on the low potential side of the rectifier 11 are electrically connected to the conductor 166 (see FIGS. 1 and 2). The output terminal on the low potential side of the rectifier 11 is electrically connected to the negative electrode of the first constant current circuit 10A through the conductor 164 (see FIGS. 1 and 2).

  A second connector 13 is mounted on the upper left portion of the second substrate 14 (see FIG. 2). The second connector 13 has four contacts (a first contact 13A, a second contact 13B, a third contact 13C, and a fourth contact 13D). The contact terminal of the first contact 13A is electrically connected to the output terminal on the high potential side of the rectifier 11 through the conductor 160. The contact terminal of the second contact 13B is electrically connected to the positive electrode (the drain of the field effect transistor Q3) of the third constant current circuit 10C through the conductor 161. The contact terminal of the third contact 13C is electrically connected to the positive electrode (the drain of the field effect transistor Q2) of the second constant current circuit 10B through the conductor 162. The contact terminal of the fourth contact 13D is electrically connected to the positive electrode (the drain of the field effect transistor Q1) of the first constant current circuit 10A through the conductor 163.

  The first connector 22 and the second connector 13 are configured to electrically connect each other's contacts one to one. For example, the first contact 22A of the first connector 22 is electrically connected to the first contact 13A of the second connector 13, and the second contact 22B of the first connector 22 is connected to the second contact 13B of the second connector 13. Electrically connected. Further, the third contact 22C of the first connector 22 is electrically connected to the third contact 13C of the second connector 13, and the fourth contact 22D of the first connector 22 is electrically connected to the fourth contact 13D of the second connector 13. Electrically connected. By connecting the first connector 22 and the second connector 13 as described above, the circuit of the illumination device shown in FIG. 1 is formed. The first connector 22 and the second connector 13 may be configured so that one is a male type and the other is a female type and is directly fitted (connected). Alternatively, the first connector 22 and the second connector 13 are each configured as a socket connector, and two header connectors that are electrically connected to each other by electric wires are inserted and connected to the first connector 22 and the second connector 13. It does not matter.

  Thus, the illuminating device of this embodiment is assembled by detachably connecting the second connector 13 of the lighting module 1 and the first connector 22 of the LED module 2. Therefore, compared with the case where the plurality of terminals respectively provided in the LED module and the LED drive circuit are mounted with a space along the longitudinal direction of the mounting substrate, the lighting device of the present embodiment is easier to assemble. Can be improved.

  As described above, the illuminating device of the present embodiment includes N (N is a natural number of 2 or more) light source units 20A to 20C each including a plurality of light emitting diodes 201 to 225 electrically connected in series, And a lighting circuit unit that lights the N light source units 20A to 20C. Moreover, the lighting device of the present embodiment is mounted with the first substrate 21 formed in a long plate shape and mounted so that the N light source units 20A to 20C are arranged in the longitudinal direction, and the lighting circuit unit. A second substrate 14. The 1st board | substrate 21 is mounted so that the light source parts 20A-20C from 1st to Nth may be located in order along a longitudinal direction. The first substrate 21 includes N-1 first conductors 23 that electrically connect one pole of the i-th light source unit 20A to 20C and one pole of the i + 1-th light source unit 20B, 20C in series. i is a natural number from 1 to N-1. The 1st board | substrate 21 is provided with the 1st connector 22 electrically connected with the both ends of N light source parts 20A-20C, respectively. The lighting circuit unit includes a pair of input terminals 12A and 12B to which an AC voltage / AC current is input from the outside (AC power supply 5), and a rectifier 11 that rectifies an AC voltage applied between the input terminals 12A and 12B. . Further, the lighting circuit unit includes N constant current circuits 10A to 10C for supplying a constant current to the N light source units 20A to 20C, respectively. The second substrate 14 is mounted with a pair of input terminals 12A and 12B, a rectifier 11, and N constant current circuits 10A to 10C. The second substrate 14 is electrically connected in series with one pole (negative electrode) of the jth constant current circuits 10A to 10C and one pole (negative electrode) of the j + 1th constant current circuits 10B and 10C. One second conductor 15 (j is a natural number from 1 to N−1) is provided. The second substrate 14 includes a second connector 13 that is electrically connected to each of the N constant current circuits 10A to 10C. The first connector 22 is mounted at one end in the longitudinal direction of the first substrate 21 and is configured to be detachable and electrically connected to the second connector 13 mounted at the end of the second substrate 14. Is done.

  The lighting device of the present embodiment is configured as described above, and is assembled by detachably connecting the second connector 13 of the lighting module 1 and the first connector 22 of the LED module 2, so that the workability of the assembly is improved. Can be achieved.

  In the lighting device of the present embodiment, the second substrate 14 is preferably formed in a rectangular plate shape having a width dimension substantially equal to the width dimension of the first substrate 21 in the short direction.

  If the illuminating device of this embodiment is comprised as mentioned above, when the width dimension of the two board | substrates 14 and 21 is equal (equal), for example, it is easy (easily) to accommodate a lighting fixture in an instrument main body. There is an advantage of becoming.

  Next, the lighting fixture according to the present embodiment will be described in detail with reference to FIGS. 3, 4A and 4B. In addition, the lighting fixture 8 of this embodiment is what is called a crime prevention light, and it is preferable to attach to the support | pillar 50 (electric power pillar or a steel pipe pole) standing on the ground or the outer wall of a building. However, the lighting fixture 8 of this embodiment is not limited to a security light, and may be a lighting fixture other than the security light.

  As shown in FIG. 3, the lighting fixture 8 preferably includes a main body 80, a globe 81, an arm 82, and the like. The main body 80 is preferably formed of a synthetic resin (for example, ASA (acrylate styrene acrylonitrile) resin) in a long rectangular box shape having an open bottom surface. The globe 81 is preferably formed in a semi-cylindrical shape with a synthetic resin (for example, acrylic resin) having translucency. The globe 81 is provided with a pair of hinge portions 810 at one end portion in the longitudinal direction (upper end portion in FIG. 3). Each hinge portion 810 is formed in a semi-annular shape, and is hooked on a pair of shafts provided at one end portion in the longitudinal direction of the main body 80 (upper end portion in FIG. 3). That is, the globe 81 is attached to the main body 80 so as to be rotatable between a closed position (see FIG. 3) that closes the lower surface opening of the main body 80 and an open position that opens the lower surface opening of the main body 80. However, a screw for screwing the globe 81 in the closed position to the main body 80 is attached to the other end in the longitudinal direction of the globe 81 (lower end in FIG. 3).

  As shown in FIGS. 4A and 4B, the arm 82 preferably includes a mounting portion 820, a fixing portion 821, and a connecting portion 822. The mounting portion 820 preferably includes a mounting plate 8200 formed in a long rectangular flat plate shape, and a pair of side plates 8201 that rise in the thickness direction from both end edges along the longitudinal direction of the mounting plate 8200 (see FIG. 4B). ). The fixing portion 821 includes a fixing plate 8210 formed in a long rectangular flat plate shape narrower than the mounting plate 8200, and a pair of side walls 8211 rising in the thickness direction from both end edges along the longitudinal direction of the fixing plate 8210. It is preferable to have (refer FIG. 4A and FIG. 4B). The connecting portion 822 preferably includes a trapezoidal main piece 8220 and a pair of side pieces 8221 that rise in the thickness direction from both end edges of the main piece 8220 along the longitudinal direction of the arm 82. However, it is preferable that the attachment portion 820, the fixing portion 821, and the connection portion 822 are integrally formed by punching and bending a plate material such as a steel plate. As shown in FIG. 4B, the fixing portion 821 is preferably formed such that the end portion on the side (left side in FIG. 4B) connected to the connecting portion 822 is curved.

  The fixing plate 8210 of the fixing portion 821 preferably includes a first screw insertion hole 8212 made of a harpoon hole, a second screw insertion hole 8213 made of a round hole, and a semicircular screw insertion groove 8214 (see FIG. 4A). ). In addition, each side wall 8211 of the fixing portion 821 is preferably provided with a rectangular insertion hole 8215 (see FIG. 4B).

  The lighting module 1 and the LED module 2 are attached to one surface (the lower surface in FIG. 4B) of the mounting portion 820 by an appropriate method such as screwing. It is preferable that the arm 82 has the mounting portion 820 and the connecting portion 822 accommodated in the main body 80 and is fixed to the main body 80 by an appropriate method such as screwing. However, the arm 82 is fixed to the main body 80 in such a direction that one surface of the mounting plate 8200 to which the lighting module 1 and the LED module 2 are attached is exposed through the opening of the main body 80. That is, the light emitted from the first to third light source units 20A to 20C of the LED module 2 passes through the globe 81 at the closed position and is irradiated to the space.

  Here, the fixing portion 821 of the arm 82 projects along the longitudinal direction of the main body 80 from the longitudinal end portion (lower end portion in FIG. 3) of the main body 80. As shown in FIG. 3, the fixing portion 821 of the arm 82 is fixed to the column 50 via the mounting bracket 9. The mounting bracket 9 is formed of a plate material such as a steel plate in the shape of a square plate having a rectangular flat plate-shaped mounting plate 90 and a pair of side plates 91 rising in the thickness direction from both end edges along the longitudinal direction of the mounting plate 90. It is preferable. The mounting plate 90 is preferably provided with three screw holes. Each side plate 91 is preferably provided with a rectangular attachment hole 910.

  Next, the construction procedure of the lighting fixture 8 of this embodiment is demonstrated. First, the worker who performs the construction work fixes the mounting bracket 9 to the column 50 by winding the mounting band 92 inserted through the mounting hole 910 of each side plate 91 around the column 50. Subsequently, the worker covers (covers) the fixing portion 821 of the arm 82 from the front of the mounting bracket 9. Then, the operator attaches the three screws 93 to 95 inserted through the first screw insertion hole 8212, the second screw insertion hole 8213, and the screw insertion groove 8214 of the fixing portion 821 to the mounting plate 90 of the mounting bracket 9. Screw into each of the three screw holes. Thus, the lighting fixture 8 of this embodiment is attached to the support | pillar 50 via the attachment bracket 9. FIG. However, it is also possible to insert the attachment band 92 into the insertion hole 8215 provided in the fixing portion 821 of the arm 82 and fix the fixing portion 821 directly to the support column 50 without using the attachment fitting 9.

  As described above, the lighting fixture 8 of the present embodiment includes the lighting device (the lighting module 1 and the LED module 2) and the fixture main body (the main body 80 and the arm 82) that supports the lighting device. The lighting fixture 8 of this embodiment is comprised as mentioned above, and can aim at the improvement of workability | operativity of an assembly.

  By the way, it is preferable that the LED module 2 (2A) in this embodiment is comprised so that a connection with another LED module 2 (2B) is possible, as shown in FIG. In other words, the terminal board 25 is mounted on the first substrate 21 of the LED module 2A at the end (left side in FIG. 5) opposite to the side on which the first connector 22 is mounted (right side in FIG. 5). Further, the first board 21 of another LED module 2B has a terminal block 25 mounted on the end of one side (right side in FIG. 5) instead of the first connector 22, and the other side (left side in FIG. 5). A terminal block 25 is also mounted on the end. These terminal blocks 25 are electrically connected to the respective positive and negative electrodes of the first light source unit 20A to the third light source unit 20C via the conductors 26A to 26D.

  In these two LED modules 2A and 2B, it is preferable that the terminal blocks 25 are electrically connected to each other by a plurality (four in the illustrated example) of electric wires 27. That is, the first light source unit 20A of the LED module 2A and the first light source unit 20A of another LED module 2B are electrically connected in parallel, and the second light source unit 20B of the LED module 2A and another LED The second light source unit 20B of the module 2B is electrically connected in parallel. Furthermore, the third light source unit 20C of the LED module 2A and the third light source unit 20C of another LED module 2B are electrically connected in parallel.

  Here, it is preferable that the two LED modules 2A and 2B are connected so that the third light source unit 20C of another LED module 2B is arranged next to the first light source unit 20A of the LED module 2A. That is, since the number of LEDs in the third light source unit 20C is relatively smaller than that in the first light source unit 20A, the light flux is also relatively reduced. Therefore, by arranging the first light source unit 20A of the LED module 2A and the third light source unit 20C of the LED module 2B, a decrease in overall uniformity can be suppressed. It is also possible to connect three or more LED modules 2 by electrically connecting a terminal block 25 of another LED module 2B and a terminal block of another LED module with an electric wire.

1 lighting module (lighting circuit)
2 LED module 8 Lighting fixture 10A 1st constant current circuit 10B 2nd constant current circuit 10C 3rd constant current circuit 11 Rectifier 12A, 12B Input terminal 13 2nd connector 14 2nd board | substrate 15 2nd conductor 20A 1st Light source unit 20B Second light source unit 20C Third light source unit 21 First substrate 22 First connector 80 Main body (instrument main body)
82 Arm (Body)
201-225 light emitting diode

Claims (3)

N light source sections each including a plurality of light emitting diodes electrically connected in series (N is a natural number of 2 or more), a lighting circuit section for lighting the N light source sections, and a long plate A first substrate formed in a shape and mounted so that the N light source units are arranged in the longitudinal direction, and a second substrate on which the lighting circuit unit is mounted,
The first substrate is mounted such that the light source parts from No. 1 to N are arranged in order along the longitudinal direction, and one pole of the i-th light source part and the i + 1-th light source part are arranged. N-1 first conductors electrically connecting one pole in series (i is a natural number from 1 to N-1), and first terminals electrically connected to both ends of the N light source units, respectively. With connectors,
The lighting circuit unit is constant for each of a pair of input terminals to which an AC voltage and an AC current are input from the outside, a rectifier that rectifies an AC voltage applied between the input terminals, and the N light source units. And N constant current circuits for supplying a current of
The second substrate is mounted with a pair of the input terminals, the rectifier, and the N constant current circuits, and one pole of the jth constant current circuit and one of the j + 1th constant current circuits. N-1 second conductors that electrically connect the poles in series (j is a natural number from 1 to N-1), and second connectors that are electrically connected to the N constant current circuits, respectively. Prepared,
The first connector is mounted on one end in the longitudinal direction of the first substrate, and is configured to be detachably and electrically connected to the second connector mounted on the end of the second substrate. A lighting device.   The lighting device according to claim 1, wherein the second substrate is formed in a rectangular plate shape having a width dimension substantially equal to a width dimension of the first substrate in a short direction.   A lighting fixture comprising: the lighting device according to claim 1 or 2; and a fixture main body that supports the lighting device.

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