JP2016010296A - Power supply device and luminaire using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power supply device that can enhance heat radiation performance and assemblability, and a luminaire using the same.SOLUTION: A power supply device 1a has a control module 2, plural power supply modules 3 and a holding member 4. In each of the plural power supply modules 3, a pair of power supply terminal units 33 are arranged at both the end portions of a second direction D2 perpendicular to a first direction D1 at one end side of the first direction D1 on the surface 32a of a second circuit board 32, and a pair of second signal terminal units 34 are arranged at both the end portions of the second direction D2 at the other end side of the first direction D1 on the surface 32a of the second circuit board 32. The holding member 4 holds the plural power supply modules 3 arranged in the second direction D2. In the power supply device 1a, the power supply terminal units 33 close to each other are electrically connected to each other, the second signal terminal units 34 close to each other are electrically connected to each other, and the plural power supply modules 3 and the control module 2 are electrically connected to each other.

Description

  The present invention relates to a power supply device including a plurality of power supply circuits and an illumination device using the power supply device.

  Conventionally, as a lighting fixture, for example, a lighting fixture for a high ceiling including a fixture main body, three lamps, a power supply block, and a support member has been proposed (Patent Document 1).

  The power supply block includes six power supply units, one control unit, and three attachment members.

  In the power supply unit, a power supply circuit for converting AC power supplied from an AC power source into DC power is housed in a metal case.

  In the six power supply units of the power supply block, two power supply units forming a pair are respectively attached to a flat mounting plate in one mounting member.

  In the control unit, a control circuit is housed in a metal case separate from the power supply block. The control unit is attached to the top plate of one of the three attachment members.

  Moreover, as a lighting fixture to be attached to a ceiling surface or the like by a hanging method, for example, a lighting fixture including a reflective shade, a main body case, four lamps, and four lighting devices has been proposed (patent) Reference 2).

  The lighting fixture described in Patent Document 2 includes a square tube-shaped lighting device fixing bracket fixed to a main body case, and one lighting device is fixed to each of four fixed surface portions of the lighting device fixing bracket.

JP 2014-89892 A JP 2003-303510 A

  In the field of power supply devices, further improvement in heat dissipation may be desired. However, in the above-described power supply block, there is a concern that heat generated in each of the two power supply units attached to the front surface and the back surface of the mounting plate may affect each other.

  Moreover, in the lighting fixture described in Patent Document 2, since one lighting device is fixed to each of the four fixing surface portions of the square tube-shaped lighting device fixing bracket, there is a concern that assembly work becomes complicated.

  The objective of this invention is providing the power supply device which can improve heat dissipation and assembly property, and an illuminating device using the same.

  The power supply device of the present invention includes a control module, a plurality of power supply modules, and a holding member that holds the plurality of power supply modules. The control module includes a group of first electronic components in a control circuit that outputs a control signal for controlling the plurality of power supply modules, a first circuit board on which the group of first electronic components is mounted, and the control signal. A first signal terminal portion capable of outputting. Each of the plurality of power supply modules includes a group of second electronic components in a power supply circuit that converts an input AC voltage into a predetermined DC voltage and outputs the same, and a second circuit on which the group of second electronic components is mounted. A pair of power supply terminal portions that can input the AC voltage and are electrically connected to each other; and a pair of second signal terminal portions that are respectively input to the control signal and are electrically connected to each other. And a load terminal portion capable of outputting the DC voltage. In each of the plurality of power supply modules, the pair of power supply terminal portions are disposed at both ends in the second direction orthogonal to the first direction on one end side in the first direction on the surface of the second circuit board. . In each of the plurality of power supply modules, the pair of second signal terminal portions are disposed on both ends of the second direction on the other end side in the first direction on the surface of the second circuit board. Yes. The holding member is configured to hold the plurality of power supply modules arranged in the second direction on a single plane along the surface of the second circuit board. In the power supply device of the present invention, power supply terminal portions adjacent to each other among the pair of power supply terminal portions of each of the adjacent power supply modules among the plurality of power supply modules are electrically connected. In the power supply device of the present invention, second signal terminal portions adjacent to each other among the pair of second signal terminal portions of each of the adjacent power supply modules among the plurality of power supply modules are electrically connected. In the power supply device of the present invention, one second signal terminal portion of the pair of second signal terminal portions in one power supply module of the plurality of power supply modules and the first signal terminal portion of the control module are electrically connected. It is connected to the.

  The illuminating device of this invention is equipped with the said power supply device and the light source which lights with the DC voltage output from the said power supply device.

  The power supply device of the present invention can improve heat dissipation and assembly.

  The lighting device of the present invention can improve heat dissipation and assembly.

FIG. 1A is a schematic plan view of a main part of the power supply device according to the first embodiment. 1B is a schematic cross-sectional view taken along the line X1-X1 of FIG. 1A. 1C is a schematic cross-sectional view taken along line X2-X2 of FIG. 1A. 1D is a schematic YY sectional view of FIG. 1A. FIG. 2 is a schematic configuration diagram of the illumination device according to the first embodiment. FIG. 3 is a schematic circuit diagram of a power supply circuit in the power supply device according to the first embodiment. FIG. 4 is an explanatory diagram of a method of connecting adjacent power supply terminal portions in the power supply device according to the first embodiment. FIG. 5 is an explanatory diagram of a method of connecting adjacent second signal terminal portions in the power supply device according to the first embodiment. FIG. 6A is a schematic perspective view illustrating another configuration example of the first connection unit in the power supply device according to the first embodiment. FIG. 6B is a schematic perspective view illustrating another configuration example of the second connection unit in the power supply device according to the first embodiment. FIG. 7A is a schematic perspective view illustrating another configuration example of the first connection unit in the power supply device according to the first embodiment. FIG. 7B is a schematic perspective view illustrating another configuration example of the second connection unit in the power supply device according to the first embodiment. FIG. 8A is a schematic perspective view illustrating another configuration example of the pair of power supply terminal portions in the power supply device according to the first embodiment. FIG. 8B is a schematic perspective view illustrating another configuration example of the pair of second signal terminal portions in the power supply device according to the first embodiment. FIG. 9A is a schematic perspective view illustrating another configuration example of a pair of power supply terminal portions in the power supply device according to the first embodiment. FIG. 9B is a schematic perspective view illustrating another configuration example of the pair of second signal terminal portions in the power supply device according to the first embodiment. FIG. 10 is a schematic main part schematic plan view showing a power supply device of a first modification of the power supply device of the first embodiment. FIG. 11A is a schematic main part schematic plan view of the power supply device according to the second embodiment. 11B is a schematic cross-sectional view taken along the line XX in FIG. 11A. FIG. 12 is a schematic perspective view of a main part of the power supply device according to the third embodiment. FIG. 13 is a schematic perspective view of a main part with a control module removed from the power supply device according to the third embodiment. FIG. 14 is a schematic perspective view of a control module in the power supply device according to the third embodiment. FIG. 15 is an explanatory diagram of another configuration example of the second connection unit in the power supply device according to the third embodiment. FIG. 16 is a main part schematic perspective view showing a power supply device according to a first modification of the power supply device of the third embodiment. FIG. 17 is a schematic perspective view of a main part in a state where a control module is removed from a power supply device according to a first modification of the power supply device according to the third embodiment. FIG. 18 is a main part schematic perspective view showing a power supply device of a second modification of the power supply device of the third embodiment. FIG. 19 is a schematic perspective view of a main part in a state where a control module is removed from a power supply device according to a second modification of the power supply device according to the third embodiment. FIG. 20 is a schematic perspective view of a control module in a power supply device according to a second modification of the power supply device of the third embodiment. FIG. 21 is a main part schematic exploded perspective view showing a power supply device of a third modified example of the power supply device of the third embodiment.

(Embodiment 1)
Below, the power supply device 1a of this embodiment is demonstrated based on FIG. 1A, 1B, 1C, 1D, and 2-5.

  The power supply device 1 a includes a control module 2, a plurality of power supply modules 3, and a holding member 4 that holds the plurality of power supply modules 3. The control module 2 includes a group of first electronic components (not shown) in the control circuit 20 that outputs control signals for controlling the plurality of power supply modules 3, and a first circuit board 21 on which the group of first electronic components are mounted. And a first signal terminal portion 22 capable of outputting a control signal. Each of the plurality of power supply modules 3 has a group of second electronic components (not shown) and a group of second electronic components mounted in a power supply circuit 31 that converts an input AC voltage into a predetermined DC voltage and outputs the same. Second circuit board 32. Each of the plurality of power supply modules 3 can input an alternating voltage and a pair of power supply terminal portions 33 that are electrically connected to each other, and a pair of first power supply terminals 33 that can respectively input a control signal and are electrically connected to each other. A two-signal terminal unit 34. Each of the plurality of power supply modules 3 includes a load terminal portion 35 that can output a DC voltage. In addition, each of the plurality of power supply modules 3 includes a pair of power supply terminal portions 33 having both ends in the second direction D2 orthogonal to the first direction D1 on one end side in the first direction D1 on the surface 32a of the second circuit board 32. Is arranged. Each of the plurality of power supply modules 3 includes a pair of second signal terminal portions 34 disposed on both ends of the second direction D2 on the other end side in the first direction D1 on the surface 32a of the second circuit board 32. Yes. The holding member 4 is configured to hold a plurality of power supply modules 3 arranged in the second direction D2 on one plane along the surface 32a of the second circuit board 32. In the power supply device 1a, the power supply terminal portions 33 adjacent to each other among the pair of power supply terminal portions 33 of each of the adjacent power supply modules 3 among the plurality of power supply modules 3 are electrically connected. Further, in the power supply device 1 a, the second signal terminal portions 34 adjacent to each other among the pair of second signal terminal portions 34 of each of the adjacent power supply modules 3 among the plurality of power supply modules 3 are electrically connected. Further, the power supply device 1 a includes one second signal terminal portion 34 of the pair of second signal terminal portions 34 and the first signal terminal portion 22 of the control module 2 in one power supply module 3 among the plurality of power supply modules 3. Electrically connected. Therefore, the power supply device 1a can improve heat dissipation and assembly.

  The power supply device 1a includes a first connection portion 5 (see FIG. 1B) and a second connection portion 6 (see FIG. 1C) that electrically connect adjacent power supply modules 3 among the plurality of power supply modules 3. 1A and 2, illustration of the first connection portion 5 and the second connection portion 6 is omitted.

  The first connection portion 5 is configured to electrically connect the power supply terminal portions 33 adjacent to each other among the pair of power supply terminal portions 33 of the adjacent power supply modules 3. The 2nd connection part 6 is comprised so that the 2nd signal terminal part 34 which mutually adjoins among the pair of 2nd signal terminal parts 34 of each adjacent power supply module 3 may be electrically connected.

  For example, as illustrated in FIG. 2, the lighting device 100 using the power supply device 1 a includes a power supply device 1 a and a light source 80 that is lit by a DC voltage output from the power supply device 1 a. Therefore, the illuminating device 100 can improve heat dissipation and assembly. Examples of the lighting device 100 include outdoor lighting fixtures and indoor lighting fixtures. Examples of outdoor lighting fixtures include road lighting fixtures, tunnel lighting fixtures, and projectors. As an indoor lighting fixture, the lighting fixture for facilities etc. with a ceiling higher than a house are mentioned, for example. Examples of the facility include a gymnasium.

  The light source 80 is a load to which a DC voltage output from the power supply device 1a is applied. More specifically, the light source 80 can be configured to include, for example, a plurality of LEDs 81 and one mounting board (not shown) on which the plurality of LEDs 81 are mounted. The LED 81 is composed of a surface-mounted white LED in which one LED chip is housed in one package. The light source 80 has a configuration in which a plurality of LEDs 81 are connected in series. The LED 81 may be, for example, a surface-mounted white LED in which a plurality of LED chips are housed in one package. The light source 80 may have a configuration in which a plurality of LEDs 81 are connected in parallel or a configuration in which a plurality of LEDs 81 are connected in series and parallel. The plurality of LEDs 81 are not limited to white LEDs, and may be LEDs that emit light other than white light, for example, or the plurality of LEDs 81 may emit different colors.

  In the power supply device 1a, for example, at one end of the holding member 4 in the second direction D2, the power input unit 45 is disposed at one end of the first direction D1, and the signal input unit 46 is disposed at the other end of the first direction D1. It can be set as the arrangement. For example, two electric wires 91 connected to an AC power source 9 made of a commercial power source can be connected to the power input unit 45. For example, three signal lines 92 connected to the control module 2 can be connected to the signal input unit 46.

  Each component of the power supply device 1a will be described in more detail below.

  For example, the control module 2 can be configured to output a dimming signal as a control signal. For example, the control module 2 outputs a dimming signal according to a signal input from the outside of the power supply device 1a. The dimming signal is a signal for causing the power supply circuit 31 to perform dimming control of the light source 80. The control module 2 may be configured to continuously dim the light source 80, or may be configured to dim the light source 80. Further, the control module 2 may have a function of correcting the dimming signal according to the cumulative lighting time of the light source 80.

  The control circuit 20 (hereinafter also referred to as “first control circuit 20”) can be configured by a group of first electronic components and a first circuit board 21.

  As the first electronic component, for example, a chip component, a lead type electronic component, or the like can be adopted.

  The first circuit board 21 has a rectangular shape (right-angled quadrilateral) when viewed from the surface 21a side. In short, the first circuit board 21 is formed in a rectangular plate shape. A rectangular shape is adopted as the rectangular shape, but is not limited thereto, and may be a square shape. The first circuit board 21 can be formed of a printed board.

  The first signal terminal unit 22 is a terminal unit that outputs a control signal from the first control circuit 20 to each power supply module 3 side. The first signal terminal portion 22 is preferably constituted by a first connector, for example, and is mounted on the first circuit board 21. The first signal terminal portion 22 is preferably disposed on the surface 21 a side of the first circuit board 21. The first signal terminal unit 22 includes three first terminals 22a. In the first signal terminal portion 22, three first terminals 22a are held by one first holding body 22b. The first terminal 22a is made of a conductive material. As the conductive material, for example, copper, nickel or the like can be used. The first holding body 22b is formed of an electrically insulating material. As the electrically insulating material, for example, an electrically insulating resin, an electrically insulating ceramic, or the like can be employed.

  The first signal terminal portion 22 has a first holding body 22b formed in a rectangular parallelepiped shape, and is arranged such that the longitudinal direction of the first holding body 22b is parallel to the first direction D1. Thereby, as for the 1st signal terminal part 22, the three 1st terminals 22a are spaced apart in the 1st direction D1, and are arrange | positioned.

  In the power supply module 3, a relatively high voltage (for example, 100 V) is input to the pair of power supply terminal portions 33, and a relatively low voltage (for example, 20 V or less) is input to the pair of second signal terminal portions 34. In short, in the power supply circuit 31, the pair of power supply terminal portions 33 are high-electricity terminal portions, and the pair of second signal terminal portions 34 are light-electricity-type terminal portions.

  The power supply circuit 31 can be composed of a group of second electronic components and a second circuit board 32.

  As the second electronic component, for example, a chip component, a lead type electronic component, or the like can be adopted.

  For example, as shown in FIG. 3, the power supply circuit 31 includes a rectifier circuit 323 (hereinafter also referred to as “first rectifier circuit 323”), a boost chopper circuit 324, a step-down chopper circuit 325, and a control circuit 326 (hereinafter referred to as “first rectifier circuit 323”). "Also referred to as" second control circuit 326 "). The power supply circuit 31 preferably further includes a noise prevention circuit 321 and a lightning surge protection circuit 322. Further, the power supply circuit 31 may further include a DC-DC conversion circuit 329. The power supply circuit 31 may further include a rectifier circuit 328 (hereinafter also referred to as “second rectifier circuit 328”).

  The first rectifier circuit 323 is a full-wave rectifier circuit that full-wave rectifies an AC voltage input between a pair of input terminals. The full-wave rectifier circuit is a diode bridge circuit.

  The step-up chopper circuit 324 is connected between a pair of output terminals of the first rectifier circuit 323. The step-up chopper circuit 324 is a chopper circuit that boosts the DC voltage output from the first rectifier circuit 323. The step-up chopper circuit 324 constitutes a power factor correction circuit that improves the power factor of the voltage subjected to full-wave rectification.

  The step-down chopper circuit 325 is connected between a pair of output terminals of the step-up chopper circuit 324. The step-down chopper circuit 325 is a chopper circuit that steps down the DC voltage output from the step-up chopper circuit 324 to a DC voltage supplied to the light source 80.

  The second control circuit 326 is a circuit that controls the step-down chopper circuit 325 and can be configured by, for example, a control IC (Integrated Circuit), a microcomputer, or the like. In addition, the power supply device 1a uses two first terminals 22a among the three first terminals 22a in the first signal terminal unit 22 in order to supply a control signal. The power supply device 1a uses the ground-side first terminal 22a of the two first terminals 22a and the remaining first terminal 22a for supplying power to the second control circuit 326. Can do.

  The noise prevention circuit 321 is a filter circuit provided on the input side of the first rectifier circuit 323, and can be constituted by, for example, one noise filter provided with a choke coil.

  The lightning surge protection circuit 322 is a circuit for preventing the dielectric breakdown of the power supply circuit 31 and the light source 80 caused by the lightning surge.

  The DC-DC conversion circuit 329 is a circuit that converts a PWM signal, which is a dimming signal, into a DC voltage signal proportional to the duty ratio of the PWM signal and outputs the DC signal.

  The second control circuit 326 is a circuit that controls the step-down chopper circuit 325 so that the light source 80 is dimmed in accordance with the level of the DC voltage signal. In short, the second control circuit 326 is a circuit that controls the step-down chopper circuit 325 in accordance with the level of a DC voltage signal generated based on a control signal from the outside.

  The second rectifier circuit 328 is a full-wave rectifier circuit provided before the DC-DC converter circuit 329, and may be provided as appropriate.

  Further, the power supply circuit 31 can rectify and smooth the AC voltage input from the power supply terminal unit 33, supply an appropriate DC voltage to the light source 80, and supply the light source 80 in accordance with a dimming signal input from the outside. The circuit configuration is not limited to the circuit configuration of FIG.

  The second circuit board 32 has a rectangular shape when viewed from the surface 32a side. In short, the second circuit board 32 is formed in a rectangular plate shape. A rectangular shape is adopted as the rectangular shape, but is not limited thereto, and may be a square shape. The second circuit board 32 can be formed of a printed board.

  The second circuit board 32 is formed along the second direction D2 on the other end side of the first direction D1 and two power supply wirings 32c formed along the second direction D2 on one end side of the first direction D1. And three signal wirings 32d.

  The power supply wiring 32c can be constituted by, for example, a conductor layer formed on the surface of an insulating base material in a printed board. The connection wiring 38a between the power supply circuit 32c on the side closer to the power supply circuit 31 of the two power supply wirings 32c and the power supply circuit 31 is constituted by, for example, a conductor layer formed on the surface of the insulating base material in the printed circuit board. can do. Of the two power supply wirings 32c, the connection wiring 38b between the power supply wiring 32c far from the power supply circuit 31 and the power supply circuit 31 includes, for example, a conductor layer formed on the surface of the insulating base material on the printed circuit board, You may comprise by the conductor layer formed in the inside of an insulating base material. In this case, a multilayer board may be adopted as the printed board. The connection wiring 38b includes a conductor layer formed on the surface of the insulating base material in the printed board, a conductor layer formed on the back surface of the insulating base material, and a through-hole wiring formed along the thickness direction of the insulating base material. And may be configured. In this case, for example, a double-sided printed board may be adopted as the printed board.

  For example, the signal wiring 32d can be formed in the same manner as the power supply wiring 32c.

  The power terminal portion 33 is preferably constituted by, for example, a second connector and mounted on the second circuit board 32. The power terminal portion 33 is preferably disposed on the surface 32 a side of the second circuit board 32. The power supply terminal portion 33 includes two second terminals 33a. In the power supply terminal portion 33, two second terminals 33a are held by one second holding body 33b. The second terminal 33a is made of a conductive material. The second holding body 33b is made of an electrically insulating material.

  In the power supply terminal portion 33, the second holding body 33b is formed in a rectangular parallelepiped shape, and is arranged so that the longitudinal direction of the second holding body 33b is parallel to the first direction D1. Thereby, in the power supply terminal portion 33, the two second terminals 33a are arranged apart from each other in the first direction D1.

  In the power supply terminal portion 33, the two second terminals 33a are electrically connected to different power supply wirings 32c. A part of the second terminal 33a protrudes from the surface of the second holding body 33b.

  For example, as shown in FIG. 4, the first connection portion 5 can be configured by a first connector 50 that electrically connects power supply terminal portions 33 that are adjacent in the second direction D2. The first connector 50 includes two connection terminals 51 that electrically connect the second terminals 33a that are close to each other in the second direction D2, and one container body 52 that holds the two connection terminals 51. Yes. The connection terminal 51 is electrically connected to the two second terminals 33a.

  The second signal terminal portion 34 is preferably constituted by a third connector, for example, and is mounted on the second circuit board 32. The second signal terminal portion 34 is preferably disposed on the surface 32 a side of the second circuit board 32. The second signal terminal portion 34 includes three third terminals 34a. In the second signal terminal portion 34, the three third terminals 34a are held by one third holding body 34b. The third terminal 34a is made of a conductive material. The third holding body 34b is made of an electrically insulating material.

  In the second signal terminal portion 34, the third holding body 34b is formed in a rectangular parallelepiped shape, and is arranged so that the longitudinal direction of the third holding body 34b is parallel to the first direction D1. Thereby, as for the 2nd signal terminal part 34, the three 3rd terminals 34a are arrange | positioned away in the 1st direction D1.

  In the second signal terminal portion 34, the three third terminals 34a are electrically connected to different signal wires 32d.

  For example, as shown in FIG. 5, the second connection portion 6 can be configured by a second connector 60 that electrically connects the second signal terminal portions 34 adjacent in the second direction D2. The second connector 60 includes three connection terminals 61 that electrically connect the third terminals 34a that are close to each other in the second direction D2, and one container body 62 that holds the three connection terminals 61. Yes. The connection terminal 61 is electrically connected with the two third terminals 34a inserted therein.

  The load terminal portion 35 is preferably constituted by a fourth connector, for example, and is mounted on the second circuit board 32. The load terminal portion 35 is preferably arranged on the surface 32a side of the second circuit board 32. The load terminal portion 35 includes two fourth terminals 35a. In the second signal terminal portion 34, two fourth terminals 35a are held by one fourth holding body 35b. The fourth terminal 35a is made of a conductive material. The fourth holding body 35b is made of an electrically insulating material.

  In the load terminal portion 35, the fourth holding body 35b is formed in a rectangular parallelepiped shape, and is arranged so that the longitudinal direction of the fourth holding body 35b is parallel to the first direction D1. Thereby, as for the load terminal part 35, the two 4th terminals 35a are arrange | positioned away in the 1st direction D1.

  In the load terminal portion 35, one of the four fourth terminals 35 a is electrically connected to the output terminal on the high potential side of the power supply circuit 31, and the other fourth terminal 35 a is connected to the power supply circuit 31. It is electrically connected to the output terminal on the low potential side.

  For example, as shown in FIG. 2, a light source 80 can be connected to the load terminal portion 35 by two electric wires 93. Each electric wire 93 preferably has one end connected to a fifth connector (not shown) detachably attached to the load terminal 35 and the other end connected to the light source 80. In addition, you may comprise the load terminal part 35 so that the some light source 80 can be connected.

  The holding member 4 is formed in a flat plate shape having a rectangular outer peripheral shape. As a material of the holding member 4, for example, a metal can be adopted. As the metal that is the material of the holding member 4, for example, aluminum can be employed. The material of the holding member 4 is preferably a metal having a high thermal conductivity, and is not limited to aluminum, and, for example, copper or the like can be employed. Further, as the metal that is the material of the holding member 4, stainless steel or the like can be employed.

  The holding member 4 can be formed by cutting out from a plate material on which a plurality of holding members 4 can be formed, for example. As the plate material, it is possible to adopt a long metal plate whose width is set to the length of the holding member 4 in the first direction D1. Thereby, in the manufacturing method of the power supply device 1a, it is possible to reduce the cost. Moreover, in the manufacturing method of the power supply device 1a, it becomes possible to easily cope with a plurality of types of power supply modules 3 having different numbers.

  In the power supply device 1 a, it is preferable that a plurality of power supply modules 3 are arranged side by side at substantially intervals in the longitudinal direction of the holding member 4. The longitudinal direction of the holding member 4 is a direction parallel to the second direction D2. The distance between the adjacent power supply modules 3 can be set to 20 mm, for example.

  The power supply module 3 can be configured to be fixed to the holding member 4 by, for example, two screws 37. In the power supply module 3, through holes (not shown) through which the screws 37 are passed are formed at two of the four corners of the second circuit board 32.

  In the power supply device 1a, for example, the holding member 4 is appropriately provided with a protrusion or the like for positioning the power supply module 3, so that the power supply module 3 can be easily positioned during assembly.

  When the holding member 4 is formed of metal or the like, the power supply device 1a preferably includes an electrical insulating sheet 43 disposed between the power supply module 3 and the holding member 4. As a result, in the power supply device 1a, since the electrical insulating sheet 43 is disposed between the back surface 32b of the second circuit board 32 and the holding member 4 in the power supply module 3, the electric power between the power supply module 3 and the holding member 4 can be reduced. It is possible to improve insulation. The electrical insulating sheet 43 can be constituted by a heat conductive sheet having electrical insulation, for example. Thereby, the power supply device 1a can efficiently transfer the heat generated in the power supply module 3 to the holding member 4 side, and the temperature rise of the power supply module 3 can be further suppressed. As the heat conductive sheet, for example, a sheet in which a heat conductive filler is mixed with a resin such as a silicone resin, an acrylic resin, or a polyolefin can be used. As the filler, for example, a ceramic filler or a metal filler can be employed. By employing a ceramic filler as a filler, the heat conductive sheet can improve electrical insulation as compared with a case where a metal filler is employed. The heat conductive sheet in this specification has the same meaning as a heat radiating sheet.

  For example, as shown in FIG. 2, the power supply input unit 45 is configured to be able to electrically connect a pair of electric wires 91 and the power supply terminal unit 33. The power supply input unit 45 can be connected to the AC power supply 9 via, for example, a pair of electric wires 91. The power input part 45 is electrically connected to the power terminal part 33 closest to the power input part 45 in the second direction D2 by the third connection part 7 (see FIG. 1B). Therefore, in the power supply device 1 a, the AC voltage input to the power supply input unit 45 is supplied to the pair of power supply terminal units 33 of each power supply module 3. The 3rd connection part 7 can be comprised by the connector which electrically connects the power input part 45 and the power supply terminal part 33, for example. In FIGS. 1A and 2, the third connecting portion 7 is not shown.

  The signal input unit 46 is configured to be able to electrically connect the plurality of signal lines 92 and the second signal terminal unit 34. For example, the signal input unit 46 can be connected to the control module 2 via a plurality of signal lines 92. The signal input unit 46 is electrically connected to the second signal terminal unit 34 closest to the signal input unit 46 in the second direction D2 by the fourth connection unit 8 (see FIG. 1C). Therefore, in the power supply device 1 a, the control signal input to the signal input unit 46 is supplied to the pair of second signal terminal units 34 of each power supply module 3. The 4th connection part 8 can be comprised by the connector which connects the signal input part 46 and the 2nd signal terminal part 34 electrically, for example. 1A and 2, the illustration of the fourth connecting portion 8 is omitted.

  The power supply device 1a can be configured such that the power input unit 45 and the signal input unit 46 are arranged at the first end 41 in the second direction D2 of the holding member 4. More specifically, the power supply device 1a is the first end 41 in the second direction D2 of the holding member 4, and the power input unit 45 is disposed on one end side in the first direction D1, and the other end side in the first direction D1. A signal input unit 46 is disposed in the circuit. Here, in the power supply device 1a, the power input unit 45 is disposed on the same one end side as the pair of power terminal portions 33 of the power module 3 in the first direction D1, and the signal input unit 46 is disposed in the power module in the first direction D1. 3 is disposed on the same other end side as the pair of second signal terminal portions 34. In this case, for example, the lighting device 100 preferably has a configuration in which each electric wire 93 is drawn from the second end portion 42 side in the second direction D2 of the holding member 4.

  In the power supply device 1a, the holding member 4 preferably has a grounding structure (not shown). Further, in the power supply device 1 a, each power supply wiring 32 c is formed in the vicinity of the side edge of the second circuit board 32 on one end side of the second circuit board 32, and each signal wiring 32 d is connected to the second circuit board 32 in addition to the second circuit board 32. It is preferable that it is formed near the side edge of the second circuit board 32 on the end side. Thereby, the power supply device 1a can suppress variation in stray capacitance between the ground. Therefore, the power supply device 1a can suppress the occurrence of malfunctions due to external noise. In addition, the power supply device 1a can suppress high-frequency noise generated in the power supply circuit 31 from interfering with the power supply wiring 32c and the signal wiring 32d.

  The power supply device 1a can be assembled, for example, by the following assembly method.

  In the method of assembling the power supply device 1a, the first step, the second step, and the third step are sequentially performed.

  First, in the first step, each power supply module 3 is attached to the holding member 4. More specifically, after the electrical insulating sheet 43 is placed on the surface 4 a of the holding member 4, the power supply module 3 is placed on the electrical insulating sheet 43. In the first step, the screw 37 inserted into the through hole of the second circuit board 32 from the surface side of the second circuit board 32 is fitted into the screw hole of the holding member 4.

  Next, in the second step, the power supply terminal portions 33 adjacent to each other are electrically connected by the first connection portion 5. In the second step, the power supply terminal portion 33 and the power supply input portion 45 that are close to each other are electrically connected by the third connection portion 7. In the second step, the second signal terminal portions 34 adjacent to each other are electrically connected by the second connection portion 6. In the second step, the second signal terminal portion 34 and the signal input portion 46 that are close to each other are electrically connected by the fourth connection portion 8.

  Next, in the third step, the signal input unit 46 and the control module 2 are electrically connected. Thereby, the power supply device 1a is completed.

  In the method of assembling the power supply device 1a, the order of the second step and the third step may be reversed.

  Since the plurality of power supply modules 3 are held by one holding member 4 in the power supply device 1a, the assemblability can be improved compared to the power supply device in which the plurality of power supply modules are housed in separate cases one by one. It becomes possible.

  In the power supply device 1a described above, the holding member 4 holds the plurality of power supply modules 3 arranged in the second direction D2 on one plane along the surface 32a of the second circuit board 32, so that heat dissipation is improved. It becomes possible. Further, in the power supply device 1a, a group of the power supply terminal portions 33 and a group of the second signal terminal portions 34 are arranged apart from each other in the first direction D1, and all the power supply terminal portions 33 are arranged in a straight line. All the second signal terminal portions 34 are arranged in a straight line. The power supply device 1 a can electrically connect the adjacent power supply terminal portions 33 of the adjacent power supply modules 3 through the first connection portion 5. Further, the power supply device 1 a can electrically connect the adjacent second signal terminal portions 34 of the adjacent power supply modules 3 through the second connection portion 6. Therefore, the power supply device 1a can suppress the labor of the wiring work, and can further reduce the possibility of erroneous connection, thereby improving the assemblability.

  Further, since the power supply device 1a includes the control module 2 that collectively controls the plurality of power supply modules 3, compared to the case where the same circuit as the control circuit 20 in the control module 2 is provided in each of the plurality of power supply modules 3. Thus, cost reduction can be achieved.

  In addition, the power supply device 1a may be configured such that, for example, a cured product of a resin for heat dissipation and electrical insulation is interposed between the power supply module 3 and the holding member 4 instead of providing the electrical insulating sheet 43. . Also in this case, the power supply device 1a can improve heat dissipation and electrical insulation. As the heat radiating and electrically insulating resin, for example, urethane resin or the like can be employed.

  Further, the material of the holding member 4 is not limited to a metal, and may be a resin, for example, and a resin having a higher thermal conductivity is preferable from the viewpoint of heat dissipation. As the resin of the material of the holding member 4, for example, a resin whose thermal conductivity is improved by blending a thermally conductive filler can be used. The material of the holding member 4 may be ceramic. Further, the holding member 4 may include a portion formed of metal and a portion formed of resin.

  In addition, the power supply device 1 a has a rectangular box shape having an opening on the entire surface of the holding member 4, and stores the plurality of power supply modules 3 and the like in the holding member 4. It is good also as a structure which attached the cover which covers a part. As a material for the cover, for example, a metal can be adopted.

  The control signal is not limited to a PWM signal, and may be, for example, a DC signal, a digital signal compliant with DALI (Digital Addressable Lighting Interface), a digital signal compliant with DMX512, or the like. DALI is certified as international standards IEC62386 and IEC60929.

  As shown in FIG. 6A, the first connection unit 5 includes two connectors 53 that are detachably connected to the two power supply terminal units 33, and two electric wires 54 that connect the two connectors 53 to each other. The structure provided may be sufficient. Further, as shown in FIG. 6B, the second connection portion 6 includes two connectors 63 that are detachably connected to the two second signal terminal portions 34, and three signals that connect the two connectors 63 to each other. The structure provided with the line 64 may be sufficient.

  Moreover, the power supply device 1a is good also considering the 1st connection part 5 as a shape as shown to FIG. 7A. Moreover, the power supply device 1a is good also considering the 2nd connection part 6 as a shape as shown to FIG. 7B.

  Further, as shown in FIG. 8A, the power supply device 1a has one power terminal portion 33 (331) of the pair of power terminal portions 33 as a male connector and the other power terminal portion 33 (332) as a female connector. A connector may be used. In this case, the power supply device 1a can electrically and mechanically connect the power supply terminal portions 331 and 332 of the power supply modules 3 adjacent in the second direction D2.

  Further, as shown in FIG. 8B, the power supply device 1 a uses one second signal terminal portion 34 (341) of the pair of second signal terminal portions 34 as a male connector and the other second signal terminal portion 34 ( 342) may be a female connector. In this case, the power supply device 1a can electrically and mechanically connect the second signal terminal portions 341 and 342 of the power supply modules 3 adjacent in the second direction D2.

  In addition, as shown in FIG. 9A, the power supply device 1a is provided with a locking recess 331a on one power supply terminal portion 33 (331) and a locking projection 332a on the other power supply terminal portion 33 (332). It is good also as a structure. In this case, the power supply device 1a can increase the mechanical connection strength between the power supply terminal portions 331 and 332.

  Further, as shown in FIG. 9B, the power supply device 1a has a pair of second signal terminal portions 34 (341) provided with a locking concave portion 341a, and the other second signal terminal portion 34 (342) has a locking convex portion. A configuration may be employed in which the portion 342a is provided. In this case, the power supply device 1a can increase the mechanical connection strength between the second signal terminal portions 341 and 342.

  Further, the second terminal 33a of the power terminal portion 33 may not be a shape protruding from the surface of the second holding body 33b, but may be a quick connection terminal that holds the electric wire inserted into the second holding body 33b. The quick connection terminal is configured to hold the electric wire by a spring force of a leaf spring formed by a conductive plate.

  FIG. 10 shows a power supply device 1b according to a first modification. The power supply device 1b according to the first modified example is different from the power supply device 1a according to the embodiment in that the power supply device 1b includes two power input units 45 and two signal input units 46. In addition, about the power supply device 1b of a 1st modification, the same code | symbol is attached | subjected to the component similar to the power supply device 1a of embodiment, and description is abbreviate | omitted. FIG. 10 shows the first connecting portion 5 (see FIG. 1B), the second connecting portion 6 (see FIG. 1C), the third connecting portion 7 (see FIG. 1B), and the fourth connecting portion 8 (see FIG. 1C). The illustration is omitted.

  In the power supply device 1 b of the first modified example, the power input unit 45 and the signal input unit 46 are disposed at both the first end 41 and the second end 42 in the longitudinal direction of the holding member 4.

  Further, the power supply module 3 in the power supply device 1b of the first modification includes the fuses 13 at both ends of one power supply wiring 32c of the two power supply wirings 32c that electrically connect the pair of power supply terminal portions 33 to each other. It is provided.

  In the power supply device 1b according to the first modified example, it is possible to increase the degree of freedom in arrangement when the lighting fixture is attached to the fixture body or the like.

(Embodiment 2)
Below, the power supply device 1c of this embodiment is demonstrated based on FIG. 11A and 11B.

  The power supply device 1c of the present embodiment is different from the power supply device 1a of the first embodiment in that the holding member 4 is configured to hold the control module 2 in addition to the plurality of power supply modules 3. In addition, since the power supply device 1c of this embodiment is the substantially same structure as the power supply device 1a of Embodiment 1, the same code | symbol is attached | subjected to the component similar to the power supply device 1a of Embodiment 1, and description is abbreviate | omitted. FIG. 11A shows the first connecting portion 5 (see FIG. 1B), the second connecting portion 6 (see FIG. 1C), the third connecting portion 7 (see FIG. 1B), and the fourth connecting portion 8 (see FIG. 1C). The illustration is omitted.

  The power supply device 1 c includes a fifth connection unit 10 that electrically connects the power supply module 3 closest to the control module 2 and the control module 2 among the plurality of power supply modules 3. The fifth connection unit 10 is configured to electrically connect the second signal terminal unit 34 close to the first signal terminal unit 22 and the first signal terminal unit 22 among the pair of second signal terminal units 34. Yes. Therefore, the power supply device 1 c is easier to handle than when the control module 2 is not held by the holding member 4.

  The fifth connection unit 10 is preferably configured by a connector that electrically and mechanically connects the power module 3 and the control module 2 that are closest to the control module 2 among the plurality of power modules 3. Thereby, the power supply device 1c can improve the relative positional accuracy between the power supply module 3 and the control module 2.

(Embodiment 3)
FIG. 12 is a schematic perspective view of a main part of the power supply device 1d according to the third embodiment. As shown in FIGS. 12 and 13, in the power supply device 1 d according to the third embodiment, the second signal terminal portion 34 includes a feed terminal portion 345 and an extension terminal portion 346. In addition, the other structure of the power supply device 1d of this embodiment is the same structure as the power supply device 1a of Embodiment 1. FIG.

  The feed terminal portion 345 includes three feed terminals (not shown) that are electrically connected to the three signal line wirings 32d (see FIG. 1A), and a rectangular parallelepiped-shaped body that holds the three feed terminals. 345b. The extension terminal portion 346 includes three extension terminals (not shown) that are electrically connected to the three signal line wirings 32d, a rectangular parallelepiped container 346b that holds the three extension terminals, It has. Therefore, in the second signal terminal portion 34, the feed terminal portion 345 and the extension terminal portion 346 are electrically connected.

  In the power supply device 1 d, the feed terminal portions 345 of the adjacent second signal terminal portions 34 are electrically connected by the second connection portion 6. The power supply device 1 d is configured so that the control module 2 can be electrically and mechanically connected to the extension terminal portion 346 of any one of the second signal terminal portions 34. Here, the control module 2 includes, for example, a rectangular parallelepiped case 25 as shown in FIG. 14, and a group of first electronic components and the first circuit board 21 are accommodated in the case 25. Can do. The control module 2 protrudes from one surface of the case 25 so that the three first terminals 22a are electrically connected to the three extension terminals of the extension terminal portion 346, respectively.

  By the way, in the power supply device 1c of Embodiment 2, since it is necessary to hold | maintain the control module 2 in the holding member 4, when attaching and using to the fixture main body of a lighting fixture, it attaches only to the fixture main body of the shape assumed beforehand. It is also possible that it is not possible.

  On the other hand, the power supply device 1d according to the present embodiment is only required to connect the control module 2 to any one of the two extended terminal portions 346 in each of the plurality of power supply modules 3. It becomes possible to increase the degree of freedom of the shape.

  In the power supply device 1d of this embodiment, the extension terminal portion 346 constitutes a connection portion that can electrically and mechanically connect the control module 2. In short, in the power supply device 1d of the present embodiment, each of the pair of second signal terminal portions 34 includes a connection portion that can electrically and mechanically connect the control module 2 to one power supply module 3 and the control module 2. Are electrically and mechanically connected. Thereby, since the power supply device 1d should just connect the control module 2 to any one of the connection parts which are two each in the several power supply module 3, it raises the freedom degree of the shape of the instrument main body which can be attached. Is possible.

  In addition, as the 2nd connection part 6, you may employ | adopt a shape as shown in FIG.

  For example, the control module 2 may include a functional device such as a human sensor, a brightness sensor, a wireless communication device, and a timer, and generate a control signal based on the output of the functional device. The human sensor is a sensor that detects a person in the detection area. As the human sensor, for example, an infrared sensor including a pyroelectric infrared detection element and an IC element that performs signal processing on an output signal of the pyroelectric infrared detection element can be employed.

  The brightness sensor is a sensor that detects ambient brightness. As the brightness sensor, for example, a configuration including a photodiode and a current-voltage conversion circuit that performs current-voltage conversion on the output current of the photodiode can be employed.

  FIG. 16 is a schematic perspective view of a main part of a power supply device 1e according to a first modification. As shown in FIGS. 16 and 17, in the power supply device 1 e of the first modification, the second signal terminal portion 34 includes a feed terminal portion 345 and an extension terminal portion 346. The power supply device 1e according to the first modification is different from the power supply device 1d according to the third embodiment in the arrangement of the extended terminal portions 346. The second connection unit 6 is different in that two connectors 63b are provided for each signal line 64. The connector 63b is detachably connected to one third terminal 34a among the three third terminals 34a (see FIG. 1A) of the second signal terminal portion 34.

  FIG. 18 is a schematic perspective view of a main part of a power supply device 1f according to a second modification. As shown in FIGS. 18 and 19, in the power supply device 1 f of the second modified example, the second signal terminal portion 34 includes a feed terminal portion 345 and an extension terminal portion 346. The power supply device 1f of the second modified example is different from the power supply device 1d of the third embodiment in the arrangement of the extended terminal portions 346, and only the shape of the control module 2 is different as shown in FIG. The extension terminal portion 346 in the power supply device 1f of the second modification is arranged so that the control module 2 can be attached from the side of the power supply module 3 in the first direction D1.

  FIG. 21 is a schematic exploded perspective view of a main part of a power supply device 1g according to a third modification. In the power supply device 1g of the third modified example, the second signal terminal unit 34 includes a feed terminal unit 345 and an extension terminal unit 346. The power supply device 1g of the third modified example is different from the power supply device 1d of the third embodiment only in the arrangement of the extended terminal portions 346. In the second signal terminal portion 34 in the power supply device 1g of the third modification, the feed terminal of the feed terminal portion 345 and the extension terminal of the extension terminal portion 346 are integrally formed.

  By the way, the illuminating device 100 (refer FIG. 2) demonstrated in Embodiment 1 may employ | adopt one of the other power supply devices 1b, 1c, 1d, 1e, 1f, and 1g instead of the power supply device 1a.

  Each figure demonstrated in the above-mentioned Embodiments 1-3 etc. is a typical figure, and the ratio of each magnitude | size and thickness of each component does not necessarily reflect an actual dimensional ratio. In addition, the materials, numerical values, and the like described in the embodiments and the like are merely preferred examples and are not intended to be limited thereto. Furthermore, the present invention can be appropriately modified in configuration without departing from the scope of its technical idea.

1a, 1b, 1c, 1d, 1e, 1f, 1g Power supply device 2 Control module 3 Power supply module 4 Holding member 20 Control circuit 21 First circuit board 22 First signal terminal portion 31 Power supply circuit 32 Second circuit board 32a Surface 33 Power supply Terminal portion 34 Second signal terminal portion 35 Load terminal portion 80 Light source 100 Lighting device 346 Expansion terminal portion (connection portion)

Claims (3)

A control module, a plurality of power supply modules, and a holding member for holding the plurality of power supply modules,
The control module includes a group of first electronic components in a control circuit that outputs a control signal for controlling the plurality of power supply modules, a first circuit board on which the group of first electronic components is mounted, and the control signal. A first signal terminal portion capable of output,
Each of the plurality of power supply modules includes a group of second electronic components in a power supply circuit that converts an input AC voltage into a predetermined DC voltage and outputs the same, and a second circuit on which the group of second electronic components is mounted. A pair of power supply terminal portions that can input the AC voltage and are electrically connected to each other; and a pair of second signal terminal portions that are respectively input to the control signal and are electrically connected to each other. A load terminal portion capable of outputting the DC voltage,
The pair of power supply terminal portions are disposed at both ends in a second direction orthogonal to the first direction on one end side in the first direction on the surface of the second circuit board,
The pair of second signal terminal portions are arranged at both ends in the second direction on the other end side in the first direction on the surface of the second circuit board,
The holding member is configured to hold the plurality of power supply modules arranged in the second direction on a single plane along the surface of the second circuit board,
Among the plurality of power supply modules, adjacent power supply terminal portions of the pair of power supply terminal portions of each of the adjacent power supply modules are electrically connected to each other,
Second signal terminal portions adjacent to each other among the pair of second signal terminal portions of each of the adjacent power supply modules among the plurality of power supply modules are electrically connected,
One second signal terminal portion of the pair of second signal terminal portions in one power supply module among the plurality of power supply modules is electrically connected to the first signal terminal portion of the control module,
A power supply device characterized by that. Each of the pair of second signal terminal portions includes a connection portion capable of electrically and mechanically connecting the control module, and the one power supply module and the control module are electrically connected.
The power supply device according to claim 1. The power supply device according to claim 1, and a light source that is lit by a DC voltage output from the power supply device.
A lighting device characterized by that.

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