JP2018010735A - Terminal device, terminal member, light source unit and lighting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress reduction in connection reliability.SOLUTION: A terminal device 5 has a plurality of conductive bodies 50 formed in a rod shape, a plurality of first terminal members 51, and a plurality of second terminal members 52. Each of the plurality of first terminal members 51 has: a plate material 510 which has conductivity and is provided with an insertion hole 511 penetrating in a thickness direction; a protruding part 514 protruding from the plate material 510; and a bonding part 515 provided at a tip portion of the protruding part 514. The protruding part 514 is formed in a convex curved plate shape in which a portion except for the tip portion (bonding part 515) becomes convex in a direction separating from the surface of a substrate 221.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a terminal device, a terminal member, a light source unit, and a lighting fixture, and more specifically, a terminal device that electrically connects two substrates to each other, a terminal member included in the terminal device, and a light source including the terminal device. The present invention relates to a unit and a lighting fixture including the light source unit.

  The connector of patent document 1 is illustrated as a conventional terminal device. The connector described in Patent Document 1 has a first connector block mounted on a rigid board and a second connector block mounted on a flexible board. The first connector block includes a first base substrate and a bar-shaped conductive protrusion that protrudes from one surface of the first base substrate. The first connector block further includes a first circuit pattern that is drawn from the conductive protrusion and formed on one surface of the first base substrate, and a first circuit that is electrically connected to the conductive protrusion through the first circuit pattern. And a soldering terminal portion. The first connector block is mounted on the surface of the rigid board by soldering the soldering portion of the first base board to the rigid board.

  The second connector block has a second base substrate. The second base substrate has a plurality of insertion holes through which the conductive protrusions are inserted.

  The first connector block is electrically connected to the second connector block such that the plurality of conductive protrusions are inserted into the insertion holes corresponding to one-to-one among the plurality of insertion holes of the second connector block. And mechanically connected.

JP 2011-134681 A

  By the way, when the conductive protrusion expands and contracts due to the influence of heat, for example, stress is generated in the solder joining the rigid board and the first soldering portion. When the conductive protrusion expands and contracts as the temperature rises and falls, there is a possibility that stress is repeatedly generated in the solder so that the solder is damaged and the reliability of connection of the terminal device is lowered.

  The objective of this invention is providing the terminal device which can suppress the fall of the reliability of a connection, a terminal member, a light source unit, and a lighting fixture.

  The terminal device which concerns on 1 aspect of this invention has the conductor formed in the rod shape, and the 1st terminal member and 2nd terminal member which are electrically connected through the said conductor. Each of the plurality of first terminal members has conductivity, a plate member provided with an insertion hole penetrating in the thickness direction, a protrusion protruding from the plate member, and a tip portion of the protrusion And a provided joint portion. The joint is soldered to a first conductor formed on the surface of the first substrate. Each of the plurality of second terminal members is electrically connected to a second conductor formed on the second substrate. Each of the plurality of conductors is inserted into the insertion hole of the corresponding first terminal member of the plurality of first terminal members, and the corresponding second of the plurality of second terminal members. It is electrically connected to the terminal member. The protruding portion is formed in a convex plate shape in which a portion excluding the tip portion is convex in a direction away from the surface of the first substrate.

  The terminal member which concerns on 1 aspect of this invention is a terminal member used for the 1st terminal member of a terminal device. The terminal member is composed of a conductive plate material, a protruding portion protruding from the plate material, and a joint portion that is provided at a tip portion of the protruding portion and is soldered to a conductor formed on the surface of the substrate. Yes. The plate member has an insertion hole penetrating in the thickness direction, and holds a rod-shaped conductor penetrating the insertion hole by contact. The protruding portion is formed in a convex plate shape in which a portion excluding the tip portion is convex in a direction away from the surface of the first substrate.

  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, and And the terminal device described. The light source unit is provided on one or more solid light sources, the first substrate on which the one or more solid light sources are arranged, and the one or more solid light sources. A plurality of first conductors to which a solid state light source is electrically connected. The power supply circuit includes a printed wiring board that is the second substrate. The printed wiring board includes a plurality of second conductors that output the power generated by the power supply circuit. The attachment member is formed in a plate shape, and includes a bottom plate to which the light source unit is attached to a first surface and the power supply device is attached to a second surface that is the back surface of the first surface. The bottom plate is provided with a hole penetrating from the first surface to the second surface. Each of the plurality of second conductors is disposed at a position overlapping the hole when viewed from the thickness direction of the mounting member. Each of the plurality of first conductors is disposed at a position overlapping the hole when viewed from the thickness direction of the mounting member.

  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 terminal member according to one aspect of the present invention has an insertion hole penetrating in the thickness direction, and a conductive plate material that electrically contacts and holds a rod-shaped conductor inserted through the insertion hole, and the plate material And a protrusion formed on the surface of the substrate and soldered. The protrusion is formed in a convex plate shape in which a portion excluding the tip portion is convex in a direction away from the surface of the substrate.

  The terminal device, the terminal member, the light source unit, and the lighting fixture of the present invention have an effect that it is possible to suppress a decrease in connection reliability.

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 an exploded perspective view of the same light source unit including the terminal device and the terminal member according to the embodiment of the present invention. FIG. 6A is a front view of a first terminal member of the above terminal device. FIG. 6B is a top view of the first terminal member of the above terminal device. FIG. 6C is a rear view of the first terminal member of the above terminal device. FIG. 6D is a right side view of the first terminal member of the above terminal device. FIG. 7 is an exploded perspective view of the second terminal member and the holder of the above terminal device. FIG. 8 is a cross-sectional view of a part of the light source unit including the terminal device. FIG. 9 is a perspective view showing a modification of the first terminal member of the terminal device according to the embodiment of the present invention.

  A terminal device, a terminal 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. In the following description, unless otherwise specified, the terminal device, the light source unit, and the lighting fixture are defined in the vertical direction, the horizontal direction, and the front-back direction 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. 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). Inclined portions 12 are provided on both sides of the concave portion 11 in the lateral direction (front-rear direction) of the instrument body 10. The inclined portion 12 extends from the opening edge of the recess 11 in the short direction (front-rear direction) of the instrument body 10 and is inclined upward toward the outside.

  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 substantially at 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. Three electric wires 250 including a grounding 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.

  2 and 5, the light source unit 2 includes a light source unit A1, a mounting member 21, a cover 23, a power supply device 4, the terminal device 5 of the present embodiment, 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. The substrate 221 corresponds to the first substrate. Two input terminal portions (first conductors) 222 that are electrically connected to the terminal device 5 are provided in any one of the plurality of LED modules 22 (see FIG. 5).

  In each LED module 22, a pair of connectors 224 for power supply is mounted on the end facing the adjacent LED module 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 mounting 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 short direction (front-rear direction) of the bottom plate 211. It is comprised with a pair of side plate 212 taken out. 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. The LED module 22 described above is fixed to the mounting member 21 by a plurality of hooks 216 formed by cutting and raising a part of the bottom plate 211 of the mounting member 21 (see FIG. 5). Each of the plurality of hook portions 216 includes a body portion 2160 that protrudes downward from the lower surface of the bottom plate 211, and an arm portion 2161 that protrudes in parallel with the lower surface of the bottom plate 211 from the left end surface of the body portion 2160 (see FIG. 5). In addition, the plurality of hook portions 216 are arranged on both sides in the short direction (front-rear direction) of the bottom plate 211 so as to be arranged at intervals along the longitudinal direction (left-right direction) of the bottom plate 211. The substrate 221 has a plurality of groove portions 2211 into which the hook portions 216 corresponding to one-to-one among the plurality of hook portions 216 are respectively inserted (see FIG. 5). Each of the plurality of groove portions 2211 has a length along the longitudinal direction (left-right direction) of the substrate 221 larger than the length along the longitudinal direction of the hooking portion 216 (the body portion 2160), and in the longitudinal direction. It is formed so as to be arranged at intervals along the line. That is, the substrate 221 is fixed to the mounting member 21 by inserting the substrate 221 between the arm portion 2161 of the hooking portion 216 inserted through the corresponding groove portion 2211 of the plurality of groove portions 2211 and the bottom plate 211 (FIG. 5).

  The attachment member 21 includes a pair of hooks 214 extending to one end in the short direction (front-rear direction) at a position near both ends in the longitudinal direction (left-right direction) and a pair of hook springs disposed on the other end in the width direction. 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). The cover 23 has a curved surface portion 231 having a convex lens shape such that a protruding amount increases downward from the both end sides toward the center side 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. Projecting wall portions 233 projecting upward (on the attachment member 21 side) are provided on the inner side of the extending portion 232 in the short direction (front-rear direction) of the cover 23 over the entire length. Protrusions 233A projecting inward are provided at the tips of the projecting walls 233, respectively. Near the base of each projecting wall portion 233, support pieces 233B projecting inwardly project.

  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 supply input unit 400, a filter circuit 401, a rectifier unit 402, a booster circuit 403, a step-down circuit 404, an output terminal unit 405, a main control circuit 406, a control power supply circuit 407, a dimming control circuit 408, and a turn-off control circuit. 409, a signal input unit 410, and the like.

  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) that includes 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. The output terminal portion 405 includes two lands formed on the upper surface of the printed wiring board 40, and is electrically connected to the output terminals of the step-down circuit 404 (both ends of the smoothing capacitor C2).

  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 [%]. It is represented by 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. The printed wiring board 40 corresponds to a second 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 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 protrudes outside 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. In the state of being attached to the attachment member 21, the opening of the case 42 is blocked by the bottom plate 211 of the attachment member 21.

  As illustrated in FIG. 5, the terminal device 5 includes two conductors 50, two first terminal members 51, and two second terminal members 52. Each of the two conductors 50 is preferably formed in a thin rod shape (for example, a cylindrical shape) with a metal such as copper or a copper alloy. The lengths of these two conductors 50 are each preferably about several tens [mm].

  The two first terminal members 51 are formed in the same shape and the same size as each other. Therefore, below, the one 1st terminal member 51 is demonstrated. As illustrated in FIGS. 6A to 6D, the first terminal member 51 includes a plate member 510 made of a rectangular metal plate and four projecting portions 514. As shown in FIG. 6A, the first terminal member 51 has an insertion hole 511 that passes through the center of the plate 510 (the center in the longitudinal direction X1 and the short direction X2). The first terminal member 51 preferably includes a plurality of (for example, three) support pieces 512 and a plurality of (for example, three) guide pieces 513. Each of the three support pieces 512 is formed integrally with the plate material 510 by cutting the plate material 510 into a pentagonal shape. The tip portions of these three support pieces 512 respectively face the insertion holes 511. Further, the three support pieces 512 are arranged at equal intervals so as to surround the insertion hole 511 (see FIG. 6A). Each of the three guide pieces 513 is formed integrally with the plate material 510 by cutting the plate material 510 into a trapezoidal shape. The tips of these three guide pieces 513 face the insertion holes 511, respectively. Further, the three guide pieces 513 are arranged one by one between the three support pieces 512 so as to surround the insertion hole 511 (see FIG. 6A). Each of the three support pieces 512 and the three guide pieces 513 is configured to be inclined in a direction away from the plate material 510 along the thickness direction X3 of the plate material 510 as it approaches the insertion hole 511 ( 6B and 6D).

  Each of the four protrusions 514 protrudes one by one along the longitudinal direction X1 of the plate material 510 from both ends in the short direction X2 at both ends of the plate material 510 in the longitudinal direction X1. Each protruding portion 514 is formed in a convex plate shape that protrudes in a direction away from the surface (lower surface) of the substrate 221 (downward in the thickness direction X3) except for the tip portion (hereinafter referred to as a joint portion 515). Has been. More specifically, it is preferable that the portion excluding the joint portion 515 of the protruding portion 514 is formed in an approximately U shape when viewed from the short direction X2 (see FIG. 6B). That is, these four protrusions 514 can bend along the longitudinal direction X1 and the thickness direction X3. Moreover, the joint part 515 of each protrusion part 514 is formed in the rectangular plate shape so that it may be parallel to the board | plate material 510 (refer FIG. 6B).

  These two first terminal members 51 are electrically connected to the two input terminal portions 222 provided on the substrate 221 in a one-to-one correspondence. Each of the two input terminal portions 222 is formed of a land formed around a through hole 2210 that penetrates the substrate 221 in the thickness direction (vertical direction) on the surface (lower surface) of the substrate 221 (see FIG. 5). ). Each of the two input terminal portions 222 is electrically connected to the plurality of LEDs 220 via a conductor formed on the surface (lower surface) of the substrate 221. In each of the two first terminal members 51, it is preferable that the joint portions 515 of the four projecting portions 514 are soldered to the two input terminal portions 222, respectively. Each of the two first terminal members 51 is electrically connected to each of the two input terminal portions 222 in a state where the three support pieces 512 and the three guide pieces 513 are inserted into the respective through holes 2210 of the two input terminal portions 222. Connected (see FIG. 8).

  The two second terminal members 52 are formed in the same shape and the same size as each other. Therefore, hereinafter, one second terminal member 52 will be described. However, in the following description, in FIG. 7, the vertical direction, the horizontal direction, and the longitudinal direction of the second terminal member 52 are defined.

  As shown in FIG. 7, the second terminal member 52 includes a first spring piece 520A, a second spring piece 520B, a first main piece 521A, a second main piece 521B, a connection piece 522, a bending piece 523, a terminal piece 524, and Three hook claws 525 are provided. The first main piece 521A and the second main piece 521B are each formed in a rectangular plate shape. The connection piece 522 is formed in a rectangular plate shape. The connection piece 522 is connected to the first main piece 521A and the second main piece 521B at both ends in the front-rear direction. That is, the first main piece 521A and the second main piece 521B are mechanically connected via the connection piece 522 so as to face each other in the front-rear direction. The first spring piece 520A is formed in a rectangular plate shape and protrudes downward from the lower end of the first main piece 521A. Note that the first spring piece 520A is curved in a U-shape when viewed from the left-right direction. The second spring piece 520B is formed in a rectangular plate shape and protrudes downward from the lower end of the second main piece 521B. The second spring piece 520B is curved in a U shape when viewed from the left-right direction. That is, the first spring piece 520A and the second spring piece 520B are formed so as to narrow the distance from each other toward the tip. The bending piece 523 is formed in a narrow rectangular plate shape. The bending piece 523 protrudes from the upper end of the second main piece 521B in a direction approaching the first main piece 521A along the front-rear direction. The terminal piece 524 is formed in an elongated rectangular plate shape. The terminal piece 524 protrudes upward from the tip of the bending piece 523. The three hooking claws 525 are provided at the centers of the first main piece 521A, the second main piece 521B, and the connection piece 522, respectively. Each of the three hooking claws 525 is cut and raised with its upper end facing outward. The first spring piece 520A, the second spring piece 520B, the first main piece 521A, the second main piece 521B, the connection piece 522, the bending piece 523, the terminal piece 524, and the three hooking claws 525 are made of metal such as copper or copper alloy. It is preferable that the plate is integrally formed by processing.

  These two second terminal members 52 are electrically connected to the two output terminal portions 405 provided on the printed wiring board 40 of the power supply device 4 in a one-to-one correspondence. Each of the two output terminal portions 405 is composed of lands formed around 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. 8). In each of the two second terminal members 52, the terminal pieces 524 are respectively inserted into the through holes 43 of the output terminal portions 405 corresponding one-to-one among the two output terminal portions 405. The terminal pieces 524 of the two second terminal members 52 are soldered to the output terminal portion 405 on the back surface of the printed wiring board 40, respectively. In this way, the two second terminal members 52 are electrically connected to the two output terminal portions 405 provided on the printed wiring board 40 of the power supply device 4 in a one-to-one correspondence.

  Here, each of the two second terminal members 52 is preferably held by a holder 53 having electrical insulation. As shown in FIG. 7, the holder 53 is formed of a rectangular parallelepiped synthetic resin molded body. The holder 53 electrically insulates and mechanically holds the two second terminal members 52. The holder 53 has two accommodating portions 530 (see FIG. 7). Each of the two accommodating portions 530 accommodates the second terminal member 52 corresponding to one of the two second terminal members 52 (see FIG. 8). Note that the upper surfaces of the two accommodating portions 530 are open. And the terminal piece 524 of the two 2nd terminal members 52 protrudes from the opening of the upper surface of the holder 53 (refer FIG. 8). The holder 53 has two insertion ports 531 (see FIGS. 5 and 8). Each of the two insertion ports 531 is open on the lower surface of the holder 53. Each of the two insertion ports 531 is connected to the corresponding accommodating portion 530 of the two accommodating portions 530 (see FIG. 8). The inner surfaces of the two insertion ports 531 are preferably inclined surfaces that are inclined toward the housing portion 530. The two second terminal members 52 are prevented from being detached from the housing portion 530 by hooking the respective tips of the three hooking claws 525 to the inner wall surface of the housing portion 530 (see FIG. 8). However, as for the 2nd terminal member 52 accommodated in the corresponding accommodating part 530, a part (lower end part) of the 1st spring piece 520A and the 2nd spring piece 520B has advanced into the corresponding insertion port 531. (See FIG. 8).

  Incidentally, the holder 53 preferably has a pair of fixing portions 532 as shown in FIG. The pair of fixing portions 532 are formed in a columnar shape and protrude upward from the left and right ends of the upper surface of the holder 53. One pair of fixing portions 532 is press-fitted 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 532 into the two fixing holes 44 of the printed wiring board 40 (see FIG. 8).

  Next, the assembly procedure of the light source unit 2 will be described. However, each of the two first terminal members 51 is soldered (electrically connected) to the corresponding input terminal portion 222 of the two input terminal portions 222 of the substrate 221. Similarly, the two second terminal members 52 are soldered (electrically connected) to the corresponding output terminal portions 405 of the two output terminal portions 405 of the printed wiring board 40. Furthermore, holders 53 each holding two second terminal members 52 are mechanically fixed to the printed wiring board 40.

  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 holder 53 into the hole 213 provided in the bottom plate 211 (see FIGS. 5 and 8). That is, the hole 213 is 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 (see FIGS. 2 and 8). Therefore, the light source unit 2 can suppress foreign matters such as insects and dust from entering the first surface side of the bottom plate 211 through the hole 213 from the second surface side of the bottom plate 211.

  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, each of the two first terminal members 51 attached to the substrate 221 of the LED module 22 corresponds to one of the two insertion ports 531 of the holder 53 as viewed from the thickness direction (vertical direction) of the substrate 221. It arrange | positions so that it may overlap with the insertion port 531 to perform (refer FIG. 8). That is, the hole 213 is blocked by the substrate 221 of the LED module 22 on the first surface (lower surface) side of the bottom plate 211 (see FIG. 8). Therefore, the light source unit 2 of the present embodiment does not require a member for closing the hole 213 (for example, a tape coated with an adhesive on one side), and can reduce costs by reducing the number of parts and the manufacturing process. it can.

  Then, the operator inserts each of the two conductors 50 into the insertion hole 511 of the corresponding first terminal member 51 of the two first terminal members 51. At this time, the upper end portion (second end portion 501) of the conductor 50 is inserted into the insertion hole 511 by the lower surfaces (inclined surfaces) of the three support pieces 512 and the three guide pieces 513 arranged so as to surround the insertion hole 511. Be guided to. Therefore, the operator can easily insert the conductor 50 into the insertion hole 511. However, each of the three support pieces 512 is bent (elastically deformed) in a direction (upward) in which the conductor 50 is inserted when the tip portion thereof contacts the conductor 50.

  The operator inserts the conductor 50 into the insertion hole 511 until the lower end of the conductor 50 is substantially flush with the lower surface of the plate material 510. At this time, the upper end portions (second end portions 501) of the two conductors 50 pass through the insertion port 531 of the holder 53, and the first spring pieces 520A and the second spring pieces 520A of the second terminal member 52 corresponding one-to-one. It is inserted between the spring pieces 520B. That is, each of the two conductors 50 is electrically connected to the second terminal member 52 corresponding one-to-one by the second end portion 501 being sandwiched between the first spring piece 520A and the second spring piece 520B. Connected (see FIG. 8). Each of the two conductors 50 is electrically connected to the first terminal member 51 corresponding to one to one by the first end portion 500 being sandwiched between the three support pieces 512 (see FIG. 8). 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 electrically connected by the terminal device 5. Connected (see FIG. 8).

  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 233 </ b> A provided on the pair of protruding wall portions 233 of the cover 23 are hooked on the pair of inclined portions 212 </ b> A of the pair of side plates 212 of the attachment member 21, and the cover 23 is attached to the attachment member 21. The light source unit 2 is assembled by the procedure as described above.

  Next, the construction procedure of the lighting fixture 1 will be described. 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.

  Here, in the terminal device 5, each of the two first terminal members 51 has three support pieces 512 provided on the plate material 510. Each of these three support pieces 512 is formed integrally with the plate material 510 so as to surround the insertion hole 511. Each of the three support pieces 512 is pushed and elastically deformed by the conductor 50 (the first end portion 500 thereof) inserted through the insertion hole 511. Further, each of the three support pieces 512 is electrically connected to the conductor 50 at the tip portion pressed by the first end portion 500 of the conductor 50. That is, in the terminal device 5, even if the conductor 50 is inclined with respect to the insertion hole 511 of the plate member 510, each tip portion of the support piece 512 is caused by the elastic force of the plurality of (for example, three) support pieces 512. Can be brought into contact with the conductor 50. As a result, the terminal device 5 can expand the allowable range of positional deviation between the two first terminal members 51 and the two second terminal members 52 that correspond one-on-one. In addition, the stress generated in the solder joining the respective joint portions 515 of the two first terminal members 51 and the respective two input terminal portions 222 is not easily affected by the inclination of the conductor 50. Therefore, as compared with the case where the first terminal member 51 and the conductor 50 are fixed by soldering or the like, the solder joining the first terminal member 51 (joint part 515) and the input terminal part 222 is cracked. Is unlikely to occur.

  By the way, the conductor 50 of the terminal device 5 expands (extends) due to heat radiated from the LED 220 being lit and heat radiated from the power supply device 4 when power is supplied to the LED module 22. Then, when the conductor 50 is extended, the plate member 510 of the first terminal member 51 is pushed in a direction away from the substrate 221 (downward). On the other hand, when the LED 220 is turned off and the temperature of the conductor 50 decreases, the conductor 50 contracts (shortens), and thereby the plate member 510 of the first terminal member 51 is pulled in a direction approaching the substrate 221 (upward). That is, in the first terminal member 51, a vertical force is applied to the plate material 510 as the conductor 50 expands and contracts (contracts). Here, when the plate material 510 is soldered to the input terminal portion 222, stress is applied to the solder joining the plate material 510 and the input terminal portion 222 by the vertical force applied to the plate material 510 every time the LED 220 blinks. Occur. As a result, since the period until a crack is generated in the solder joining the plate material 510 and the input terminal portion 222 is shortened, the connection reliability of the terminal device 5 may be reduced.

  On the other hand, the terminal device 5 of the present embodiment is soldered to the input terminal portion 222 by a joint portion 515 provided at the tip portion of the protruding portion 514 instead of the plate material 510. That is, the plate member 510 of the first terminal member 51 is supported so as to be vertically displaceable via the (four) projecting portions 514 by soldering the (four) joint portions 515 to the input terminal portion 222. ing. Therefore, the stress generated in the solder joining the (four) joint portions 515 and the input terminal portion 222 is reduced by the deflection of the (four) projecting portions 514 in accordance with the displacement of the plate material 510. As a result, the terminal device 5 of the present embodiment improves the reliability of the solder joint between the first terminal member 51 and the input terminal portion 222 as compared with the case where the plate material 510 is soldered to the input terminal portion 222. You can plan.

  Here, the modification of the 1st terminal member 51 is shown in FIG. In this modification, two projecting portions 514 project from the center in the short direction X2 at both ends in the longitudinal direction X1 of the plate material 510, respectively. Each projecting portion 514 includes a first projecting piece 5140 and a second projecting piece 5141. The first projecting piece 5140 is formed in a convex plate shape that is convex in a direction away from the surface (lower surface) of the substrate 221. For example, the first projecting piece 5140 is preferably formed in a substantially C shape when viewed from the short direction X2 of the plate 510. The second projecting piece 5141 is preferably formed in an approximately U-shape when viewed from the longitudinal direction X1 of the plate material 510. The second projecting piece 5141 is connected to the tip of the first projecting piece 5140 at the center in the longitudinal direction (short direction X2 of the plate material 510). In addition, rectangular plate-shaped joint portions 515 are provided at both ends of the second projecting piece 5141 in the longitudinal direction.

  The modification of the first terminal member 51 configured as described above is soldered to the input terminal portion 222 with a total of four joint portions 515 provided two at each of the two protrusions 514 (see FIG. 9). And the board | plate material 510 of the 1st terminal member 51 of a modification is also supported so that a vertical displacement is possible via the (two) protrusion part 514 (the 1st protrusion piece 5140). Therefore, the stress generated in the solder joining the (four) joint portions 515 and the input terminal portion 222 is reduced by the deflection of the (two) projecting portions 514 in accordance with the displacement of the plate material 510. As a result, the terminal device 5 having the first terminal member 51 according to the modified example also has a solder joint between the first terminal member 51 and the input terminal portion 222 as compared with the case where the plate material 510 is soldered to the input terminal portion 222. It is possible to improve the reliability. In addition, the first terminal member 51 of the modified example is curved in the direction in which the first projecting piece 5140 is brought closer to the plate material 510 and the four joint portions 515 are arranged in the vicinity of the plate material 510. The dimensions can be reduced.

  As described above, the terminal device 5 of the present embodiment includes the conductor 50 formed in a rod shape, and the first terminal member 51 and the second terminal member 52 that are electrically connected through the conductor 50. Yes. Each of the plurality of first terminal members 51 has electrical conductivity and is provided with a plate member 510 provided with an insertion hole 511 penetrating in the thickness direction, a protruding portion 514 protruding from the plate member 510, and a protruding portion 514. And a joint portion 515 provided at the tip portion. The joint portion 515 is solder-bonded to the first conductor (input terminal portion 222) formed on the surface of the first substrate (substrate 221). Each of the plurality of second terminal members 52 is electrically connected to a second conductor (output terminal portion 405) formed on the second substrate (printed wiring board 40). Each of the plurality of conductors 50 is inserted into the insertion hole 511 of the corresponding first terminal member 51 among the plurality of first terminal members 51, and the corresponding second of the plurality of second terminal members 52. The two-terminal member 52 is electrically connected. The protruding portion 514 is formed in a convex plate shape in which a portion excluding the tip portion (joining portion 515) is convex in a direction away from the surface of the substrate 221.

  If the terminal device 5 of the present embodiment is configured as described above, even if the plate material 510 is displaced according to the expansion and contraction of the conductor 50, the joint portion 515 and the input terminal portion 222 are bent by bending the protruding portion 514. The stress generated in the solder that is joined can be reduced. As a result, the terminal device 5 of the present embodiment can suppress a decrease in connection reliability (between the joint portion 515 and the input terminal portion 222).

  The terminal member of this embodiment is a terminal member used for the first terminal member 51 of the terminal device 5. The terminal member (first terminal member 51) includes a conductive plate member 510, a protruding portion 514 protruding from the plate member 510, and a conductor formed on the front surface of the protruding portion 514 and solder-bonded to the conductor. It is comprised from the junction part 515 made. The plate member 510 has an insertion hole 511 penetrating in the thickness direction, and holds the rod-shaped conductor 50 penetrating the insertion hole 511 by contact. The protruding portion 514 is formed in a convex plate shape in which a portion excluding the tip portion (joining portion 515) is convex in a direction away from the surface of the substrate 221.

  If the terminal member of this embodiment is comprised as mentioned above, the fall of the reliability of the connection of the terminal device 5 can be suppressed.

  In addition, the light source unit 2 of the present embodiment includes a light source unit A1, a power supply device 4 having a power supply circuit 49 that supplies power to the light source unit A1, a mounting member 21 to which the light source unit A1 and the power supply device 4 are attached, and terminals. And a device 5. 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 supply circuit 49 includes a printed wiring board 40 that is a second substrate. 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, and has a bottom plate 211 to which 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. The bottom plate 211 is provided with a hole 213 penetrating from the first surface to the second surface. Each of the plurality of output terminal portions 405 is disposed at a position overlapping the hole 213 when viewed from the thickness direction of the mounting member 21. Each of the plurality of input terminal portions 222 is disposed at a position overlapping the hole 213 when viewed from the thickness direction (vertical direction) of the mounting member 21.

  If the light source unit 2 of this embodiment is comprised as mentioned above, the fall of the reliability of a connection can be suppressed by suppressing the fall of the reliability of the connection of the terminal device 5. FIG.

  Furthermore, the lighting fixture 1 of this embodiment includes a light source unit 2 and a fixture body 10 that supports the light source unit 2.

  If the lighting fixture 1 of this embodiment is comprised as mentioned above, the fall of the reliability of a connection can be suppressed by suppressing the fall of the reliability of the connection of the terminal device 5. FIG.

  Further, in the terminal device 5 of the present embodiment, it is preferable that the portion excluding the distal end portion of the protruding portion 514 is curved so that the distal end portion approaches the plate material 510.

  If the terminal device 5 of this embodiment is comprised as mentioned above, size reduction of the 1st terminal member 51 can be achieved.

  The terminal member (first terminal member 51) of the present embodiment has an insertion hole 511 penetrating in the thickness direction, and is electrically conductive to hold the rod-shaped conductor 50 inserted through the insertion hole 511 in electrical contact. Plate material 510 is provided. The first terminal member 51 includes a protrusion 514 that protrudes from the plate member 510 and is soldered to a conductor (input terminal portion 222) formed on the surface of the substrate 221. The protruding portion 514 is formed in a convex plate shape in which a portion excluding the tip portion is convex in a direction away from the surface of the substrate 221.

  If the terminal member of this embodiment is comprised as mentioned above, the fall of the reliability of the connection of a terminal member (1st terminal member 51) can be suppressed.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Light source unit 4 Power supply device 5 Terminal device 10 Appliance main body 21 Mounting member 22 LED module (light source part A1)
40 Printed wiring board (second board)
49 Power supply circuit 50 Conductor 51 First terminal member (terminal member)
52 2nd terminal member 211 Bottom plate 213 Hole 220 LED (solid light source)
221 substrate (first substrate)
222 Input terminal (first conductor)
405 Output terminal part (second conductor)
510 Plate material 511 Insertion hole 514 Protruding part 515 Joining part (tip part)

Claims (6)

A conductor formed in a rod shape, and a first terminal member and a second terminal member that are electrically connected through the conductor;
Each of the plurality of first terminal members has conductivity, a plate member provided with an insertion hole penetrating in the thickness direction, a protrusion protruding from the plate member, and a tip portion of the protrusion A bonding portion provided, and the bonding portion is soldered to a first conductor formed on the surface of the first substrate;
Each of the plurality of second terminal members is electrically connected to a second conductor formed on the second substrate,
Each of the plurality of conductors is inserted into the insertion hole of the corresponding first terminal member of the plurality of first terminal members, and the corresponding second of the plurality of second terminal members. Electrically connected to the terminal member,
The terminal device, wherein the protruding portion is formed in a convex plate shape in which a portion excluding the tip portion is convex in a direction away from the surface of the first substrate.   2. The terminal device according to claim 1, wherein a portion of the protruding portion excluding the tip portion is curved so as to bring the tip portion closer to the plate member. A terminal member used for the first terminal member of the terminal device according to claim 1 or 2,
It is composed of a conductive plate material, a protruding portion protruding from the plate material, and a joint portion soldered to a conductor provided on the tip portion of the protruding portion and formed on the surface of the substrate,
The plate member has an insertion hole penetrating in the thickness direction, and holds a rod-shaped conductor penetrating the insertion hole by contact;
The projecting portion is formed in a convex plate shape in which a portion excluding the tip portion is convex in a direction away from the surface of the first substrate. A light source unit, a power supply device having a power supply circuit for supplying power to the light source unit, an attachment member to which the light source unit and the power supply device are attached, and the terminal device according to claim 1 or 2,
The light source unit is provided on one or more solid light sources, the first substrate on which the one or more solid light sources are arranged, and the one or more solid light sources. A plurality of the first conductors to which a solid state light source is electrically connected;
The power supply circuit has a printed wiring board as the second substrate, and the printed wiring board has a plurality of the second conductors that output the power generated by the power supply circuit,
The attachment member is formed in a plate shape, has a bottom plate to which the light source unit is attached to a first surface, and the power supply device is attached to a second surface which is a back surface of the first surface, A hole penetrating from the first surface to the second surface is provided,
Each of the plurality of second conductors is disposed at a position overlapping the hole when viewed from the thickness direction of the mounting member,
Each of the plurality of first conductors is disposed at a position overlapping the hole when viewed from the thickness direction of the mounting member.   An illumination fixture comprising: the light source unit according to claim 4; and a fixture main body that supports the light source unit. A conductive plate member having an insertion hole penetrating in the thickness direction, and electrically holding and holding a rod-shaped conductor inserted through the insertion hole;
Protruding from the plate material, provided with a conductor formed on the surface of the substrate and a protrusion to be soldered,
The projecting portion is formed into a convex plate shape in which a portion excluding a tip portion is convex in a direction away from the surface of the substrate.

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