JP2017174569A - Light source unit and lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a manufacturing process.SOLUTION: Each of a plurality of connection members 5 comprises: first terminal parts 50 each electrically connected to a corresponding input terminal part 222 of a plurality of input terminal parts 222; and second input terminal parts 51 each electrically connected to a corresponding output terminal part 405 of a plurality of output terminal parts 405. Further, each of the plurality of connection members 5 includes electrical conduction parts 52 electrically connecting the first terminal part 50 and the second terminal part 51. The first terminal part 50 which the plurality of connection members 5 respectively have, is structured so as to insert the corresponding input terminal part 222 in the thickness direction of a substrate 221.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a light source unit and a lighting fixture, and more particularly to a light source unit including a light source and a power supply device, and a lighting fixture including the light source unit.

  As a conventional example of the light source unit, a light source unit described in Patent Document 1 is illustrated. The light source unit described in Patent Document 1 includes a substrate on which an LED (light emitting diode) is mounted, an attachment member to which the substrate is attached, a cover member, and a power supply device. The power supply device converts AC power supplied from the AC power source into DC power, and supplies the converted DC power to the LED. The attachment member is formed in a long rectangular plate shape by a metal plate. The substrate on which the LED is mounted is attached to the first surface of the attachment member. The cover member is formed in a box shape from a light-transmitting synthetic resin material, and is attached to the attachment member so as to cover the surface of the substrate on which the LEDs are mounted and the first surface of the attachment member. Moreover, a power supply device is attached to the 2nd surface (back surface of a 1st surface) of an attachment member. The power supply device is electrically connected to a connector mounted on the substrate via an electric wire. The LED emits light (lights up) when DC power is supplied from a power supply device through an electric wire and a connector and a printed wiring formed on the substrate. The attachment member has an insertion hole through which the electric wire is inserted. Moreover, the lighting fixture of patent document 1 is provided with the light source unit and the fixture main body to which a light source unit is attached so that attachment or detachment is possible.

JP 2014-179211 A

  By the way, in the manufacturing process of the light source unit described in Patent Document 1, an electric wire that electrically connects the power supply device and the connector of the board must be inserted into the insertion hole of the mounting member. Therefore, the configuration of the light source unit described in Patent Document 1 is insufficient to simplify the manufacturing process.

  The objective of this invention is providing the light source unit and lighting fixture which can aim at the simplification of a manufacturing process.

  A light source unit according to an aspect of the present invention includes a light source unit, a power supply device having a power supply circuit that supplies power to the light source unit, an attachment member to which the light source unit and the power supply device are attached, the power supply circuit, And a plurality of connecting members for electrically connecting the light source units. The light source unit is provided with one or more solid light sources, a substrate on which the one or more solid light sources are arranged, and the substrate, and the one or more solid light sources are electrically connected to each other. A plurality of input terminal portions. The power supply circuit has a printed wiring board. The printed wiring board has a plurality of output terminal portions that output the power generated by the power supply circuit. The attachment member is formed in a plate shape, the light source unit is attached to a first surface, and the power supply device is attached to a second surface which is the back surface of the first surface. Furthermore, the attachment member is provided with a hole penetrating from the first surface to the second surface. The plurality of output terminal portions are arranged at positions overlapping the holes when viewed from the thickness direction of the mounting member. The plurality of input terminal portions are disposed at positions overlapping the holes when viewed from the thickness direction of the mounting member. Each of the plurality of connecting members has a first terminal portion that is electrically connected to a corresponding input terminal portion of the plurality of input terminal portions. Further, each of the plurality of connection members includes a second terminal portion electrically connected to a corresponding output terminal portion of the plurality of output terminal portions, the first terminal portion, and the second terminal portion. And electrically conductive parts. The first terminal portion included in each of the plurality of connecting members is configured to sandwich the corresponding input terminal portion along the thickness direction of the substrate.

  The lighting fixture which concerns on 1 aspect of this invention is equipped with the light source unit and the fixture main body which supports the said light source unit.

  The light source unit and the lighting fixture of the present invention have an effect that the manufacturing process can be simplified.

FIG. 1 is an exploded perspective view of a light source unit and a lighting fixture according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the luminaire described above. FIG. 3 is a circuit diagram of the power source device of the light source unit. FIG. 4 is a plan view of the above power supply apparatus. FIG. 5 is a perspective view of a part of the connection member from which the substrate and the holder of the light source unit are omitted. FIG. 6 is a perspective view of a part of the substrate of the light source unit, the printed wiring board of the power supply device, and the connection member. FIG. 7A is a cross-sectional view of the substrate of the light source unit, the mounting member, the printed wiring board of the power supply device, and a part of the connecting member before connection. FIG. 7B is a cross-sectional view after connection of a part of the substrate of the light source unit, the mounting member, the printed wiring board of the power supply device, and a connection member.

  A light source unit and a lighting fixture according to an embodiment of the present invention will be described in detail with reference to the drawings. In addition, although the lighting fixture of embodiment described below illustrates the lighting fixture attached to a ceiling, the lighting fixture of embodiment may be a lighting fixture attached to places other than ceilings, such as a wall. Moreover, in the following description, unless otherwise specified, in the direction shown in FIG. The configurations described in the following embodiments are merely examples of the present invention. The present invention is not limited to the following embodiments, and various modifications can be made according to the design and the like as long as they do not depart from the technical idea of the present invention.

  The lighting fixture 1 of this embodiment is comprised by the light source unit 2 and the fixture main body 10 as shown in FIG.1 and FIG.2. The instrument body 10 is fixed to the suspension bolt 200 and attached directly to the ceiling 100. The light source unit 2 is detachably attached to the instrument body 10.

  The instrument main body 10 is formed into a flat box shape that is long and has an upper surface (a surface facing the ceiling 100) opened by bending the sheet metal. Moreover, the instrument main body 10 is provided with a rectangular recess 11 for accommodating the light source unit 2 on the opposite side (lower side) to the ceiling 100 over the entire length of the instrument main body 10 in the longitudinal direction (left-right direction). In addition, inclined portions 12 are provided on both sides of the recess 11 in the width direction (front-rear direction) of the instrument body 10. The inclined portion 12 extends from the opening edge of the recess 11 in the width direction (front-rear direction) of the instrument body 10 and is inclined upward toward the outside.

  Further, the bottom plate 111 of the recess 11 is provided with a hole 111 </ b> A through which the power supply line 30 is passed at substantially the center in the longitudinal direction (left-right direction). Further, the bottom plate 111 is provided with holes 111B through which the suspension bolts 200 are passed at positions close to both ends in the longitudinal direction (left-right direction). A terminal block 25 is attached to the lower surface of the bottom plate 111. The terminal block 25 is electrically connected to the power line 30. In addition, three electric wires 250 including a ground wire are drawn out from the terminal block 25. Further, a plug connector 251 is electrically connected to the tips of these three electric wires 250.

  As shown in FIGS. 2 and 5, the light source unit 2 includes a light source unit A <b> 1, a mounting member 21, a cover 23, a power supply device 4, a connection member 5, and the like. The light source unit A1 preferably includes a plurality (for example, two) of LED modules 22.

  The plurality of LED modules 22 are arranged side by side in the longitudinal direction (left-right direction). Each LED module 22 includes a substrate 221 formed in a rectangular plate shape that is long in the longitudinal direction (left-right direction). A plurality of LEDs (light emitting diodes) 220 are mounted (arranged) on the surface (lower surface) of the substrate 221 along the longitudinal direction (left-right direction) and arranged in a line. In addition, two input terminal portions 222 are provided in any one of the plurality of LED modules 22 (see FIG. 5).

  In addition, a pair of power supply connectors 224 are mounted on the ends of the LED modules 22 facing the adjacent LED modules 22 (see FIG. 2). Then, the pair of connectors 224 of the LED modules 22 adjacent to each other are electrically connected, so that the lighting power is relayed from one LED module 22 to the other LED module 22.

  The attachment member 21 is formed in a U shape by bending a sheet metal, and extends upward from both ends of the bottom plate 211 formed in a long and rectangular plate shape in the left-right direction (width direction). And a pair of side plates 212. As shown in FIG. 2, a pair of inclined portions 212 </ b> A that incline away from each other (outward) is provided at the front ends (upper ends) of the pair of side plates 212. In addition, the LED module 22 mentioned above is fixed to the attachment member 21 with the nail | claw formed, for example by cutting and raising a part of the bottom plate 211 of the attachment member 21. FIG.

  The attachment member 21 includes a pair of hooks 214 extending to one end in the width direction (front-rear direction) at a position near both ends in the longitudinal direction (left-right direction) and a pair of hooks disposed on the other end in the width direction. And a spring 215 (see FIG. 1).

  The cover 23 is formed in a long box shape whose upper surface (surface on the mounting member 21 side) is opened by a light diffusing material (for example, milky white acrylic resin). In addition, the cover 23 has a curved surface portion 231 having a convex lens shape such that a protruding amount increases downward from the both ends to the center in the front-rear direction (width direction) (see FIG. 2).

  At both ends in the front-rear direction of the cover 23, as shown in FIG. 2, with the light source unit 2 attached to the instrument main body 10, an extension 232 that overlaps the opening edge of the recess 11 in the instrument main body 10 in the vertical direction. Are provided. Furthermore, projecting wall portions 233 projecting upward (on the attachment member 21 side) are provided over the entire length on the inner side of the extending portion 232 in the left-right direction of the cover 23. Protrusions 233A projecting inward are provided at the tips of the projecting walls 233, respectively. In addition, support pieces 233B that protrude inwardly protrude near the bases of the respective protruding wall portions 233.

  The power supply device 4 includes a power supply circuit 49 configured by mounting electronic components on the printed wiring board 40, and a case 42 that houses the power supply circuit 49. A circuit diagram of the power supply circuit 49 is shown in FIG. The power supply circuit 49 includes a power input unit 400, a filter circuit 401, a rectifier unit 402, a booster circuit 403, a step-down circuit 404, two output terminal units 405, a main control circuit 406, a control power supply circuit 407, a dimming control circuit 408, and a light-off. A control circuit 409, a signal input unit 410, and the like are provided.

  The power input unit 400 includes a receptacle connector, and a plug connector 251 (see FIG. 1) that is electrically connected to the electric wire 250 drawn from the terminal block 25 is plugged in. The filter circuit 401 includes a common mode choke coil 4010 and an across-the-line capacitor 4011. The rectification unit 402 is configured by a diode bridge. The rectification unit 402 performs full-wave rectification on the AC voltage (AC current) input from the AC power supply 3 via the filter circuit 401 and the power input unit 400, and outputs the pulsating voltage (pulsating current) from the DC output terminal. .

  The step-up circuit 403 is a conventionally known step-up chopper circuit (power factor correction circuit) including a choke coil L1, a switching element Q1, a rectifying element D1, a smoothing capacitor C1, and the like. The booster circuit 403 converts the pulsating voltage output from the rectifying unit 402 into a DC voltage (for example, a DC voltage of 400 [V]) higher than the peak value of the pulsating voltage.

  The step-down circuit 404 is a conventionally known step-down chopper circuit (buck converter) including a switching element Q2, an inductor L2, a rectifying element D2, a resistor R1, a smoothing capacitor C2, and the like. The step-down circuit 404 steps down the DC voltage (first DC voltage) output from the step-up circuit 403 to a DC voltage (second DC voltage) suitable for the LED module 22 that is a load. Each of the two output terminal portions 405 includes a land formed on the printed wiring board 40 (the upper surface thereof). Each of these two output terminal portions 405 is electrically connected to a corresponding one of the pair of output terminals (both ends of the smoothing capacitor C2) of the step-down circuit 404.

  The main control circuit 406 switches the switching element Q1 of the step-up circuit 403 and the switching element Q2 of the step-down circuit 404, maintains the output voltage of the step-up circuit 403 constant, and matches the output current of the step-down circuit 404 to the target value. Configured to let The control power supply circuit 407 is configured to generate a control voltage (for example, a DC voltage of about 15 [V] to 3 [V]) from the output voltage of the booster circuit 403. The main control circuit 406 operates with the control voltage supplied from the control power supply circuit 407.

  The signal input unit 410 includes a receptacle connector, and a control signal transmitted via the signal line is input to the dimming control circuit 408 and the extinction control circuit 409 via the signal input unit 410.

  The extinguishing control circuit 409 is configured to generate an extinguishing signal for extinguishing the lighting LED module 22 in accordance with the control signal and to output it to the main control circuit 406. When receiving the turn-off signal, the main control circuit 406 is configured to stop the switching of the switching element Q2, stop the step-down circuit 404, and turn off the LED module 22.

  The dimming control circuit 408 is configured to generate a dimming signal and output it to the main control circuit 406 in accordance with the control signal. The light control signal is a signal for instructing the light output (light control level) of the LED module 22. The dimming level is the ratio of the average power per unit time supplied to the LED module 22 to the rated power when the light output of the LED module 22 when the rated power is supplied is 100 [%]. %]. For example, when the average power per unit time supplied to the LED module 22 is half of the rated power, the dimming level is 50 [%]. In other words, if the dimming level indicated by the control signal is 50 [%], the dimming control circuit 408 reduces the average power per unit time supplied from the step-down circuit 404 to the LED module 22 by half of the rated power. A dimming signal instructing to be generated is generated. The main control circuit 406 is preferably configured to adjust the duty ratio of the switching element Q2 in accordance with the dimming signal received from the dimming control circuit 408. More specifically, the dimming control circuit 408 detects the output current of the step-down circuit 404 from the voltage across the resistor R1, and adjusts the average value of the output current to a target value corresponding to the dimming level. It is preferably configured to generate an optical signal.

  As shown in FIG. 4, the printed wiring board 40 is configured by printing a wiring conductor (copper foil) on the back surface of a long rectangular flat insulating substrate. A so-called lead component such as a connector, a smoothing capacitor, or a common mode choke coil 4010 is mounted on the surface (lower surface) of the printed wiring board 40. Then, on the back surface (upper surface) of the printed wiring board 40, surface mount components such as the rectifying unit 402, the main control circuit 406, the dimming control circuit 408, and the turn-off control circuit 409 are mounted. Here, the power input unit 400 is mounted on the surface of the end portion in the longitudinal direction (left-right direction) of the printed wiring board 40. On the other hand, the signal input unit 410 is mounted on the surface of the other end portion in the longitudinal direction (left-right direction) of the printed wiring board 40.

  As shown in FIGS. 2 and 4, the case 42 includes a bottom plate 420, a pair of first side plates 421 </ b> A and 421 </ b> B rising from an edge along the short direction of the bottom plate 420, and an end along the longitudinal direction of the bottom plate 420. And a pair of second side plates 422A and 422B that rise from the edge. That is, the case 42 is formed in a long box shape in which a surface (lower surface) facing the bottom plate 420 is opened. The case 42 also includes a fixing plate 423 that protrudes outward from the tip of the second side plate 422A that is one of the pair of second side plates 422A and 422B. The fixing plate 423 is formed in a square shape as shown in FIG.

  The printed wiring board 40 is accommodated in the case 42 with the back surface facing the bottom plate 420, and is fixed to the case 42 with four claws 4220 cut and raised from the pair of second side plates 422A, 422B (see FIG. 4). . The insertion port of the power input unit 400 projects out of the case 42 through a rectangular window hole provided in the first side plate 421B.

  As shown in FIG. 2, the power supply device 4 is attached to the upper surface (second surface) of the attachment member 21 of the light source unit 2 so that the bottom plate 420 of the case 42 faces upward. Specifically, the case 42 is fixed to the mounting member 21 by screwing the second side plate 422B and the fixing plate 423 to the pair of side plates 212 of the mounting member 21, respectively. Further, the opening of the case 42 is closed by the bottom plate 211 of the mounting member 21 in a state where the mounting member 21 is mounted.

  Each of the two connecting members 5 includes a first terminal portion 50, a second terminal portion 51, and a conductive portion 52 (see FIG. 5). The two connecting members 5 have the same structure. Therefore, below, the one connection member 5 is demonstrated.

  The first terminal unit 50 is electrically connected to one input terminal unit 222 corresponding to one of the two input terminal units 222. Here, the board | substrate 221 of the LED module 22 has a pair of notch part 2210 opened to the both ends of a transversal direction (front-back direction), as shown in FIG. Each of the pair of notches 2210 is formed in a rectangular shape when viewed from the thickness direction (vertical direction) of the substrate 221. In addition, a rectangular plate-shaped protrusion 2211 protrudes from the right edge of each of the pair of notches 2210. These protrusions 2211 protrude leftward along the longitudinal direction of the substrate 221. And the input terminal part 222 which consists of copper foil is formed in each surface (lower surface) of these two protrusions 2211 (refer FIG. 5). That is, each of the two input terminal portions 222 is configured by a so-called edge connector terminal.

  The first terminal portion 50 is an edge socket connector that is mated with the input terminal portion 222 formed of an edge connector terminal. More specifically, the first terminal portion 50 includes a contact piece 500, a spring piece 501, and a connecting piece 502 that connects the contact piece 500 and the spring piece 501. The first terminal portion 50 is preferably formed in a generally Ω shape by bending a metal plate having a spring property. In the first terminal portion 50, the protrusion 2211 and the input terminal portion 222 are inserted between the contact piece 500 and the spring piece 501. The spring piece 501 of the first terminal portion 50 bends in a direction away from the contact piece 500 when the protrusion 2211 is inserted. The spring piece 501 sandwiches the protrusion 2211 and the input terminal portion 222 with the contact piece 500 by a spring force, and is electrically connected to the input terminal portion 222. As a result, the first terminal unit 50 is electrically connected to the input terminal unit 222 (see FIG. 5).

  As shown in FIG. 5, the second terminal portion 51 preferably includes a terminal piece 510 and a support piece 511. The terminal piece 510 is formed so that one end portion (lower end portion) of a rod-like metal is bent into a semi-oval shape. On the other hand, the support piece 511 is formed in a thin rod shape with metal.

  The conductive part 52 preferably includes a first conductive piece 520 and a second conductive piece 521. The first conductive piece 520 is formed in a T shape. The first conductive piece 520 protrudes upward from the rear edge of the contact piece 500 (see FIG. 5). The second conductive piece 521 is formed in a T shape. The second conductive piece 521 protrudes upward from the front end edge of the contact piece 500 (see FIG. 5). Further, the terminal piece 510 is connected to the upper left end of the second conductive piece 521, and the support piece 511 is connected to the upper right end of the second conductive piece 521. In addition, it is preferable that the 1st terminal part 50, the 2nd terminal part 51, and the electroconductive part 52 are integrally formed by processing metal materials, such as copper or a copper alloy.

  The second terminal portion 51 is electrically connected to an output terminal portion 405 provided on the printed wiring board 40 of the power supply device 4. The output terminal portion 405 is configured by a land formed across the periphery of two through holes 43 that penetrate the printed wiring board 40 in the thickness direction (vertical direction) on the back surface (upper surface) of the printed wiring board 40. (See FIG. 7A). In the second terminal portion 51, the terminal piece 510 and the support piece 511 are inserted through the two through holes 43 of the output terminal portion 405, respectively. Then, the terminal piece 510 and the support piece 511 of the second terminal portion 51 are soldered to the output terminal portion 405 on the back surface (upper surface) of the printed wiring board 40, respectively. Thus, the 2nd terminal part 51 is electrically connected with the output terminal part 405 provided in the printed wiring board 40 of the power supply device 4 (refer FIG. 7A).

  Here, each of the two second terminal portions 51 is preferably held by a holder 53 having electrical insulation. The two holders 53 have the same structure. Therefore, hereinafter, one holder 53 will be described. The holder 53 preferably has a holder main body 54 and a holder cover 55 (see FIG. 6). The holder main body 54 preferably includes an accommodating portion 540, a base portion 541, a pair of support portions 542, an enclosure portion 543, and the like (see FIGS. 6 and 7). The base part 541 is formed in a rectangular plate shape. The accommodating portion 540 is formed in a rectangular tube shape having a hollow inside. The accommodating part 540 protrudes downward from the center in the longitudinal direction on the lower surface of the base part 541. The 2nd terminal part 51 and the electroconductive part 52 are accommodated in the inside of the accommodating part 540 (refer FIG. 7A). However, the terminal piece 510 and the support piece 511 of the second terminal portion 51 are inserted into the corresponding holes 5410 out of the two holes 5410 passing through the base portion 541 and project outside the accommodating portion 540. Each of the pair of support portions 542 connects the front and rear side surfaces of the housing portion 540 and both ends of the base portion 541 in the longitudinal direction. That is, the accommodating portion 540 is supported from the left and right sides by the pair of support portions 542. The enclosure portion 543 includes a bottom wall 5430 that protrudes leftward from the lower end of the left side surface of the housing portion 540, a side wall 5431 that protrudes downward from the left end of the bottom wall 5430, and a rear wall that protrudes downward from the rear end of the bottom wall 5430. 5432. The enclosure portion 543 is configured to surround the upper, left, and rear sides of the first terminal portion 50 disposed below the accommodating portion 540 (see FIG. 6).

  The holder cover 55 includes a rectangular plate-shaped first wall portion 550 and a rectangular plate-shaped second wall portion 551 connected to the lower end of the first wall portion 550. The holder cover 55 is attached to the front surface of the holder main body 54. The first wall portion 550 of the holder cover 55 covers the opening surface (front surface) of the housing portion 540. Further, the second wall portion 551 of the holder cover 55 faces the rear wall 5432 of the enclosure portion 543 in the front-rear direction and surrounds the front of the first terminal portion 50 (see FIG. 6).

  Incidentally, the holder 53 preferably has a pair of fixing portions 544 as shown in FIG. 7A. The pair of fixing portions 544 are formed in a tapered column shape and protrude upward from the left and right ends of the upper surface of the base portion 541 of the holder 53. The pair of fixing portions 544 is press-fitted one by one into each of the two fixing holes 44 provided in the printed wiring board 40. That is, the holder 53 is fixed to the printed wiring board 40 by press-fitting the pair of fixing portions 544 into the two fixing holes 44 of the printed wiring board 40 (see FIG. 7A).

  Next, the assembly procedure of the light source unit 2 will be described. However, each of the two second terminal portions 51 is soldered (electrically connected) to a corresponding output terminal portion 405 of the two output terminal portions 405 of the printed wiring board 40. Further, two holders 53 each holding two second terminal portions 51 are mechanically fixed to the printed wiring board 40, respectively.

  First, the worker who performs the assembly work attaches the power supply device 4 to the second surface (upper surface) of the mounting member 21 so that the opening surface (lower surface) of the case 42 is closed by the bottom plate 211 of the mounting member 21. At this time, the operator inserts the tip (lower end) of the corresponding holder 53 into each of the two holes 213 provided in the bottom plate 211 (see FIG. 7A). That is, the two holes 213 provided in the bottom plate 211 are surrounded and closed by the case 42 of the power supply device 4 on the second surface (upper surface) side of the bottom plate 211. Therefore, the light source unit 2 of the present embodiment prevents foreign matters such as insects and dust from entering the first surface side of the bottom plate 211 through the holes 213 of the bottom plate 211 from the second surface side of the bottom plate 211. be able to.

  Subsequently, the operator fixes the LED module 22 to the first surface (lower surface) of the bottom plate 211 of the attachment member 21. At this time, the operator inserts the corresponding first terminal portion 50 (the enclosure portion 543 of the holder 53) into each of the two cutout portions 2210 of the substrate 221 (see FIG. 7A). Then, the worker moves the LED module 22 (substrate 221) in the left direction (the direction of the arrow X1) in parallel with the bottom plate 211 along the longitudinal direction (left and right direction). Then, the two input terminal portions 222 (and the protrusions 2211) provided on the substrate 221 are respectively engaged with the first terminal portions 50 of the corresponding connecting members 5 (see FIGS. 5, 6, and 7B). ). That is, each of the two first terminal portions 50 is electrically connected to the corresponding input terminal portion 222. As a result, each of the two input terminal portions 222 of the LED module 22 and the corresponding output terminal portion 405 of the two output terminal portions 405 of the power supply device 4 (power supply circuit 49) are respectively connected by the two connection members 5. Electrically connected (see FIG. 6).

  Finally, the operator attaches the cover 23 to the mounting member 21 with the opening side of the mounting member 21 facing upward. At this time, the pair of protrusions 233A provided on the pair of protruding wall portions 233 of the cover 23 are hooked on the pair of inclined portions 212A of the pair of side plates 212 of the attachment member 21, and the cover 23 is attached to the attachment member 21 ( (See FIG. 2). The light source unit 2 is assembled by the procedure as described above.

  Here, in the light source unit described in Patent Document 1, an electric wire that electrically connects the power supply device and the connector of the LED module is inserted through the insertion hole of the mounting member. Therefore, in the light source unit described in Patent Document 1, it is difficult to simplify the assembly process (manufacturing process) of the light source unit.

  On the other hand, in the light source unit 2 of this embodiment, as described above, the LED module 22 (the substrate 221) is simply slid with respect to the mounting member 21, and the electrical power supply 4 and the LED module 22 are electrically The connection work is configured to be completed. Therefore, the light source unit 2 of this embodiment can simplify the manufacturing process (of the light source unit 2) as compared with the conventional example such as the light source unit described in Patent Document 1.

  In the light source unit 2 of the present embodiment, each of the two connection members 5 has a holder 53 that supports the first terminal portion 50, the second terminal portion 51, and the conductive portion 52. Each of these two holders 53 is fixed to the printed wiring board 40. Further, the first terminal portion 50 includes a contact piece 500, a spring piece 501, and a connecting piece 502 that connects the contact piece 500 and the spring piece 501. The substrate 221 and the corresponding input terminal portion 222 are inserted between the contact piece 500 and the spring piece 501. That is, the light source unit 2 of the present embodiment maintains the electrical connection state between the first terminal unit 50 and the input terminal unit 222 by the spring force of the spring piece 501 even when the substrate 221 is extended by the heat generated by the LED 220. can do. As a result, the light source unit 2 of the present embodiment can improve the reliability of the connection member 5 that electrically connects the LED module 22 and the power supply device 4. Furthermore, a curved portion 5100 curved in a U shape is provided at the end (lower end) of the terminal piece 510 of the second terminal portion 51 (see FIGS. 5 and 7). Therefore, the bending portion 5100 bends, whereby the first terminal portion 50 can be displaced in each of the thickness direction (vertical direction) of the substrate 221 and the longitudinal direction (horizontal direction) of the substrate 221. Therefore, the light source unit 2 of the present embodiment is the first even if the relative positions of the first terminal portion 50 and the input terminal portion 222 (protrusion 2211) vary due to thermal expansion of the substrate 221 or the like. The electrical connection state between the terminal portion 50 and the input terminal portion 222 can be maintained. As a result, the light source unit 2 of the present embodiment can further improve the reliability of the connection member 5 that electrically connects the LED module 22 and the power supply device 4.

  Next, the construction procedure of the lighting fixture 1 of this embodiment is demonstrated. First, as shown in FIG. 1, the installer inserts the power line 30 and the signal line previously wired on the back of the ceiling into the hole 111 </ b> A of the instrument body 10, and further handles each suspension bolt 200 exposed to the indoor side. Through the hole 111B. Thereafter, the installer secures the instrument body 10 to the ceiling 100 by screwing the nut 300 into each suspension bolt 200. Thereafter, the installer connects the power line 30 to the terminal block 25, and further plugs and connects the plug connector 251 of the terminal block 25 to the power input unit 400 (see FIG. 4) of the power supply device 4. Subsequently, the installer electrically connects the signal line to the signal input unit 410 (see FIG. 4) of the power supply device 4.

  Finally, the installer hooks the ends of the pair of hooks 214 into the pair of insertion holes 112A provided on one side plate 112 of the instrument body 10, and then attaches the pair of hook springs 215 to the other of the instrument body 10. It is hooked on a hooking portion 1120 provided on the side plate 112. Then, when the installer rotates the light source unit 2 with the hook metal 214 as a fulcrum, the hook spring 215 returns to the original state while being hooked on the hook portion 1120, so that the light source is driven by the spring force of the hook spring 215. The unit 2 is held by the instrument body 10. The lighting fixture 1 is constructed on the ceiling 100 by the procedure as described above.

  As described above, the light source unit 2 of the present embodiment includes the light source unit A1 and the power supply device 4 including the power supply circuit 49 that supplies power to the light source unit A1. In addition, the light source unit 2 of the present embodiment includes an attachment member 21 to which the light source unit A1 and the power supply device 4 are attached, and a plurality of connection members 5 that electrically connect the power supply circuit 49 and the light source unit A1. The light source unit A1 is provided on one or a plurality of solid-state light sources (LEDs 220), a substrate 221 on which one or a plurality of LEDs 220 are disposed, and the one or a plurality of LEDs 220 are electrically connected. And a plurality of input terminal portions 222. The power circuit 49 has a printed wiring board 40. The printed wiring board 40 has a plurality of output terminal portions 405 that output power generated by the power supply circuit 49. The attachment member 21 is formed in a plate shape, the light source unit A1 is attached to the first surface, and the power supply device 4 is attached to the second surface which is the back surface of the first surface. Furthermore, the attachment member 21 is provided with a hole 213 penetrating from the first surface to the second surface. The plurality of output terminal portions 405 are arranged at positions overlapping the holes 213 when viewed from the thickness direction of the mounting member 21. The plurality of input terminal portions 222 are arranged at positions overlapping the holes 213 when viewed from the thickness direction of the attachment member 21. Each of the plurality of connection members 5 includes a first terminal portion 50 that is electrically connected to a corresponding input terminal portion 222 of the plurality of input terminal portions 222 and a corresponding output of the plurality of output terminal portions 405. It has the 2nd terminal part 51 electrically connected with the terminal part 405. FIG. Further, each of the plurality of connection members 5 includes a conductive portion 52 that electrically connects the first terminal portion 50 and the second terminal portion 51. The first terminal portion 50 included in each of the plurality of connection members 5 is configured to sandwich the corresponding input terminal portion 222 along the thickness direction of the substrate 221.

  The lighting fixture 1 of the present embodiment includes a light source unit 2 and a fixture body 10 that supports the light source unit 2.

  Since the light source unit 2 of the present embodiment is configured as described above, the manufacturing process can be simplified as compared with the conventional example such as the light source unit described in Patent Document 1. That is, in the light source unit 2 of the present embodiment, when the substrate 221 is slid with respect to the mounting member 21, the power supply device 4 and the light source unit A1 are electrically connected. As a result, the light source unit 2 of the present embodiment does not require the work of connecting the power supply device and the light source unit with an electric wire, so that the manufacturing process can be simplified. Moreover, the lighting fixture 1 of this embodiment can simplify the manufacturing process (of the lighting fixture 1) with the simplification of the manufacturing process of the light source unit 2.

  In the light source unit 2 of the present embodiment, each of the plurality of connection members 5 preferably has a holder 53 that supports the first terminal portion 50, the second terminal portion 51, and the conductive portion 52. The holder 53 is preferably fixed to the printed wiring board 40. The first terminal unit 50 preferably includes a contact piece 500, a spring piece 501, and a connecting piece 502 that connects the contact piece 500 and the spring piece 501. It is preferable that the substrate 221 (projection 2211 thereof) and the corresponding input terminal portion 222 are inserted between the contact piece 500 and the spring piece 501.

  If the light source unit 2 of the present embodiment is configured as described above, even when the substrate 221 is extended by the heat generated by the LED 220, the electrical force between the first terminal portion 50 and the input terminal portion 222 is caused by the spring force of the spring piece 501. Thus, the connection state can be maintained. As a result, the light source unit 2 of the present embodiment can improve the reliability of the connection member 5 that electrically connects the light source unit A1 and the power supply device 4.

  Furthermore, in the light source unit 2 of the present embodiment, the power supply device 4 preferably has a case 42 that houses the power supply circuit 49. The case 42 is preferably formed in a box shape whose one surface is open. The power supply device 4 is preferably attached to the second surface (of the attachment member 21) so as to block one surface of the case 42 with the second surface of the attachment member 21.

  When the light source unit 2 of the present embodiment is configured as described above, the hole 213 provided in the attachment member 21 is surrounded by the case 42 so that foreign matters such as insects and dusts pass through the hole 213 and the solid light source (LED 220). It is possible to suppress entry into the direction.

A1 light source part 1 lighting fixture 2 light source unit 4 power supply device 5 connecting member 10 fixture main body 21 mounting member 22 LED module (light source part)
40 Printed Wiring Board 42 Case 49 Power Supply Circuit 50 First Terminal Unit 51 Second Terminal Unit 52 Conductive Unit 53 Holder 213 Hole 220 LED (Solid Light Source)
221 Substrate 222 Input terminal portion 405 Output terminal portion 500 Contact piece 501 Spring piece 502 Connection piece

Claims (4)

A light source unit, a power supply device having a power supply circuit for supplying power to the light source unit, a mounting member to which the light source unit and the power supply device are attached, and a plurality of connections for electrically connecting the power supply circuit and the light source unit With members,
The light source unit is provided with one or more solid light sources, a substrate on which the one or more solid light sources are arranged, and the substrate, and the one or more solid light sources are electrically connected to each other. A plurality of input terminal portions,
The power supply circuit has a printed wiring board, and the printed wiring board has a plurality of output terminal portions that output the power generated by the power supply circuit,
The attachment member is formed in a plate shape, the light source unit is attached to a first surface, the power supply device is attached to a second surface which is the back surface of the first surface, and the attachment member is A hole penetrating from one surface to the second surface is provided,
The plurality of output terminal portions are arranged at positions overlapping the holes as seen from the thickness direction of the mounting member,
The plurality of input terminal portions are arranged at positions overlapping the holes as seen from the thickness direction of the mounting member,
Each of the plurality of connection members includes a first terminal portion electrically connected to a corresponding input terminal portion of the plurality of input terminal portions, and a corresponding output terminal portion of the plurality of output terminal portions. A second terminal part electrically connected to the first terminal part, and a conductive part electrically connecting the first terminal part and the second terminal part,
The light source unit, wherein the first terminal portion of each of the plurality of connecting members is configured to sandwich the corresponding input terminal portion along the thickness direction of the substrate. Each of the plurality of connecting members has a holder that supports the first terminal portion, the second terminal portion, and the conductive portion, and the holder is fixed to the printed wiring board,
The first terminal portion includes a contact piece, a spring piece, and a connecting piece for connecting the contact piece and the spring piece, and the substrate and the corresponding input are provided between the contact piece and the spring piece. The light source unit according to claim 1, wherein a terminal portion is inserted.   The power supply device has a case for housing the power supply circuit, and the case is formed in a box shape with one surface open, and the power supply device is formed on the second surface of the mounting member on the case. The light source unit according to claim 1, wherein the light source unit is attached to the second surface so as to close the one surface.   A lighting fixture comprising: the light source unit according to any one of claims 1 to 3; and a fixture main body that supports the light source unit.

Images