Mounting substrate and luminaire

Abstract

To provide a mounting substrate and a lighting fixture capable of reducing a mounting space.SOLUTION: The mounting substrate 5 includes a substrate 50, a component 7, and a holder 8. The component 7 is mounted on the substrate 50. The holding portion 8 holds the covered portion 601 of the wiring 6 electrically connected to the substrate 50. The substrate 50 is provided with an insertion portion 9 through which the holding portion 8 is inserted.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates generally to a mounting board and a lighting fixture, and more particularly to a mounting board and a lighting fixture including a substrate and a component mounted on the substrate. [Background technology]

[0002] Patent Document 1 discloses an assembly for securing an electric cable to a body. The assembly includes a clamp member and a pair of fixing members. The clamp member has a pair of cable holes and a pair of guide grooves. The pair of cable holes are sized to receive the electric cable and are spaced apart. The pair of guide grooves extend inward from opposite edges of the clamp member. The pair of fixing members for securing the clamp member to the body includes an edge region and a pair of ribs. Each edge region has a main surface extending obliquely from the mounting surface, the main surface defining a guide rail for engaging with one of the guide grooves. A pair of ribs extend from the edge region across the main surface and are spaced apart to hold the edge region and the clamp member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2019-512891 Summary of the Invention [Problem to be solved by the invention]

[0004] In order to fix the electrical cables (wiring) electrically connected to the electronic components to the main body (board) on which the electronic components are mounted, the main body must be provided with a fixing member such as the above-mentioned assembly. In other words, the main body requires mounting space for the fixing member. This poses a problem in that it is not possible to reduce the mounting space in the main body.

[0005] An object of the present disclosure is to provide a mounting board that can reduce the mounting space, and a lighting fixture including the same. [Means for solving the problem]

[0006] A mounting board according to one aspect of the present disclosure includes a substrate, a component, and a holding portion. The component is mounted on the substrate. The holding portion holds a covered portion of a wiring electrically connected to the substrate. The substrate is provided with an insertion portion through which the holding portion is inserted.

[0007] A lighting fixture according to an aspect of the present disclosure includes the above-described mounting board and a light source, the light source being illuminated by power supplied from a power supply circuit at least partly constituted by components. [Effects of the Invention]

[0008] The present disclosure has the advantage of reducing the mounting space. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of a mounting board according to this embodiment. [Figure 2] FIG. 2 is an exploded perspective view of the lighting fixture. [Figure 3] FIG. 3 is a circuit block diagram of a power supply device including the above mounting board. [Figure 4] FIG. 4 is a perspective view of a mounting board according to the first modified example of the above embodiment. [Figure 5] FIG. 5 is a perspective view of a mounting board according to a second modified example of the above embodiment. [Figure 6] FIG. 6 is a perspective view of a mounting board according to a third modified example of the above embodiment. [Figure 7] FIG. 7 is a cross-sectional view of a main part of a mounting board according to a third modified example of the above embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] The embodiments and modifications described below are merely examples of the present disclosure. The present disclosure is not limited to the embodiments and modifications, and various modifications other than these embodiments and modifications are possible depending on the design, etc., as long as they do not deviate from the technical concept of the present disclosure. The drawings described in the following embodiments and modifications are schematic drawings, and the ratios of the sizes and thicknesses of the components in the drawings do not necessarily reflect the actual dimensional ratios.

[0011] (Embodiment) (1) Overview An overview of the mounting substrate 5 according to this embodiment will be described below with reference to FIG.

[0012] The mounting board 5 according to this embodiment includes a substrate 50, a component 7, and a holder 8, as shown in FIG.

[0013] The component 7 is mounted on the substrate 50. The holding portion 8 holds the covered portion 601 of the wiring 6 electrically connected to the substrate 50. The substrate 50 is provided with an insertion portion 9 through which the holding portion 8 is inserted.

[0014] The mounting board 5 according to this embodiment does not need to be provided with a fixing member for fixing the wiring 6 to the substrate 50, and therefore there is no need to ensure a mounting space for mounting the fixing member on the substrate 50. As a result, the mounting board 5 according to this embodiment has the advantage of being able to reduce the mounting space.

[0015] (2) Detailed configuration The detailed configuration of the lighting fixture 100 and the mounting board 5 of this embodiment will be described below with reference to FIGS.

[0016] The lighting fixture 100 according to this embodiment is directly attached to, for example, the ceiling of an office in an office building. Note that the location where the lighting fixture 100 is installed is not limited to the ceiling of the office, and it may be, for example, a wall or floor surface of an office or a room other than an office.

[0017] As shown in FIGS. 2 and 3, the lighting fixture 100 according to this embodiment includes a fixture body 1, a light source unit 2, a communication device 3, and a power supply device 4.

[0018] In the following description, unless otherwise specified, a first direction D1 along the longitudinal direction of lighting fixture 100 is defined as the left-right direction, a second direction D2 along the height direction of lighting fixture 100 is defined as the up-down direction, and a third direction D3 along the short side (width direction) of lighting fixture 100 is defined as the front-rear direction. However, these directions are not intended to limit the directions of lighting fixture 100 and its components when in use. Furthermore, the arrows indicating "D1," "D2," and "D3" in the drawings are merely shown for the purpose of explanation and do not have any physical substance.

[0019] (2.1) Device body As shown in Fig. 2, the appliance body 1 has a main portion 10 formed in a long rectangular shape, and a pair of side portions 11 protruding downward from both ends (front end and rear end) of the main portion 10 along the longitudinal direction (left-right direction). Each of the pair of side portions 11 is formed in a long rectangular shape. The main portion 10 and the pair of side portions 11 are integrally formed into a square gutter shape by, for example, bending a long metal plate.

[0020] As shown in Fig. 2, the main portion 10 has two power supply holes 111, two mounting holes 112, and two hooking holes 113. Each of the two power supply holes 111 penetrates the main portion 10 in the thickness direction (vertical direction) of the main portion 10. Each of the two mounting holes 112 penetrates the main portion 10 in the thickness direction (vertical direction) of the main portion 10. Each of the two hooking holes 113 penetrates the main portion 10 in the thickness direction (vertical direction) of the main portion 10. The surrounding areas of the two mounting holes 112 in the main portion 10 are each formed into an elliptical truncated cone shape that protrudes upward from the top surface of the main portion 10.

[0021] As shown in FIG. 2, two power supply holes 111 are provided, one at each end in the longitudinal direction (left-right direction) of the main part 10. Each power supply hole 111 is, for example, circular. A bushing is fitted into each power supply hole 111. The bushing is, for example, cylindrical and made of synthetic resin material. For example, a power cable C1 that is routed from an external power source P1 (see FIG. 3) such as a commercial power system or another lighting fixture is inserted into the left-most power supply hole 111. Meanwhile, a power cable C2 that is routed to another lighting fixture is inserted into the right-most power supply hole 111.

[0022] 2, a first terminal block 14A and a second terminal block 14B are attached to the underside of the main unit 10, one at each end closer to the center in the longitudinal direction than the power supply hole 111. The first terminal block 14A and the second terminal block 14B are terminal blocks of the same structure. A power cable C1 is electrically connected to the primary terminal of the first terminal block 14A. Furthermore, a power cable C2 is electrically connected to the primary terminal of the second terminal block 14B.

[0023] 2, the two mounting holes 112 are provided on the main part 10, one to the right of the first terminal block 14A and one to the left of the second terminal block 14B. A hanging bolt B1 protruding from the installation surface S1 is inserted into each of the two mounting holes 112. Then, nuts N1 are tightened onto the hanging bolts B1 inserted into the respective mounting holes 112, thereby fixing the fixture main body 1 to the installation surface S1.

[0024] The two hanging holes 113 are provided at symmetrical positions closer to the center than the two mounting holes 112. Each of the two hanging holes 113 is, for example, a bell-shaped hole. The ends of two strings (not shown) for temporarily hanging the light source unit 2 are inserted into and hooked onto the two hanging holes 113, respectively.

[0025] As shown in FIG. 2, the fixture body 1 further has two mounting springs 12. The two mounting springs 12 serve to mount the light source unit 2 to the fixture body 1. One of the two mounting springs 12 is provided in the main part 10 between the first terminal block 14A and the mounting hole 112 adjacent to the first terminal block 14A, and the other is provided between the second terminal block 14B and the mounting hole 112 adjacent to the second terminal block 14B (see FIG. 2). Each mounting spring 12 is formed into a U-shape by bending a strip-shaped metal plate. The two mounting springs 12 are fixed to the main part 10 by, for example, screwing. Each mounting spring 12 is deformable (flexible) along the short side direction (front-rear direction) of the fixture body 1.

[0026] (2.2) Light source unit As shown in FIGS. 2 and 3, the light source unit 2 includes a light source module 20, a support member 21, a cover 22, two end members 23, a communication device 3, and a power supply device 4.

[0027] (2.2.1) Light source module As shown in Fig. 2, the light source module 20 has two substrates 200, a plurality of light-emitting elements (LEDs 201) mounted on a surface 200A (lower surface) of each substrate 200, and one connecting member 24 provided on each substrate 200. Each substrate 200 is formed in a long rectangular shape. A conductor for supplying power to the plurality of LEDs 201 is formed on the surface 200A of each substrate 200. The conductor is formed at the center in the short direction of the surface 200A of the substrate 200. The conductors of the two substrates 200 are connected via connectors mounted on the longitudinal ends of each substrate 200.

[0028] The plurality of LEDs 201 includes, for example, white LEDs for illumination with an incandescent color and white LEDs for illumination with a daylight color. The plurality of LEDs 201 are arranged such that the LEDs 201 emitting different colors are alternately aligned in a row along the longitudinal direction of the substrate 200. The plurality of LEDs 201 may be composed of only white LEDs for illumination of the same color, or may include white LEDs for illumination of three or more colors. The plurality of LEDs 201 may also include LEDs emitting light of a color other than white, such as red, green, or blue.

[0029] The connection member 24 is a member that electrically connects the power supply device 4, which will be described later, and the light source module 20. The connection member 24 of the right-side substrate 200 is provided on the right side of the front surface 200A of the substrate 200. The connection member 24 of the left-side substrate 200 is provided on the left side of the front surface 200A of the substrate 200.

[0030] Each connection member 24 has a receptacle connector mounted on the substrate 200 and a plug connector. The receptacle connector is electrically connected to a conductor formed on the surface 200A of the substrate 200. The receptacle connector is inserted into a through-hole provided in each substrate 200 and protrudes upward from the upper surface of the substrate 200. Each plug connector is electrically connected to the power supply device 4 via an output line. The plug connector is electrically and mechanically connected to the receptacle connector, thereby electrically connecting the light source module 20 (LEDs 201) to the power supply device 4.

[0031] In the lighting fixture 100 according to this embodiment, the light source module 20 is turned on by power supplied from the power supply device 4, as will be described later. That is, the lighting fixture 100 according to this embodiment includes the power supply device 4 and the light source module 20 (light source) that is turned on by power supplied from the power supply device 4.

[0032] (2.2.2) Supporting member 2, the support member 21 has a bottom plate 210 formed in a long rectangular shape, and a pair of side plates 211 protruding upward from a pair of side ends (front end and rear end) along the longitudinal direction (left-right direction) of the bottom plate 210. Each of the pair of side plates 211 is formed in a long rectangular shape. The support member 21 also has a pair of cover attachment pieces 212.

[0033] Each of the pair of cover attachment pieces 212 is formed in an L-shape and protrudes downward from each side end along the longitudinal direction of the bottom plate 210. As will be described later, a pair of attachment portions 222 of the cover 22 is hooked onto each of the cover attachment pieces 212.

[0034] The bottom plate 210, the pair of side plates 211, and the pair of cover attachment pieces 212 are integrally formed by extrusion molding a metal material such as an aluminum alloy.

[0035] Furthermore, through holes are provided in the bottom plate 210 of the support member 21 at positions that face the connecting members 24 of each substrate 200 in the vertical direction. The connecting members 24 protrude above the bottom plate 210 through the through holes in the bottom plate 210.

[0036] (2.2.3) Cover As shown in Fig. 2, the cover 22 has a front wall 220, a pair of side walls 221, and a pair of mounting portions 222. The front wall 220 is formed in an elongated rectangular shape. The pair of side walls 221 protrude upward from both ends (front end and rear end) of the front wall 220 in the longitudinal direction. Each of the pair of side walls 221 is formed in an elongated rectangular shape. Each of the pair of mounting portions 222 is formed in an elongated U-shape and protrudes inward from the upper end of each side wall 221 over the entire length of each side wall 221 in the longitudinal direction.

[0037] The front wall 220, the pair of side walls 221, and the pair of mounting portions 222 are integrally formed by extrusion molding of a translucent synthetic resin such as polycarbonate resin or acrylic resin. Note that, in order to diffuse the light emitted from the light source module 20, the cover 22 is preferably formed in a milky white color by mixing a filler into the synthetic resin material.

[0038] The cover 22 is attached to the support member 21 by hooking the pair of attachment portions 222 one by one onto the pair of cover attachment pieces 212 of the support member 21. The cover 22 attached to the support member 21 covers the light source module 20 attached to the lower surface of the bottom plate 210 of the support member 21.

[0039] (2.2.4) End members As shown in Figure 2, each end member 23 has a cover end portion 230 that closes the longitudinal end of the cover 22, an end cap portion 231 that closes the longitudinal end of the support member 21, and an attachment 232 for attaching the end member 23 to the support member 21.

[0040] The end members 23 are attached to the support member 21 by screwing the mounting fixtures 232 to the support member 21. By attaching the two end members 23 to the support member 21, the openings at both ends of the longitudinal direction of the cover 22 and the openings at both ends of the longitudinal direction of the support member 21 are closed.

[0041] (2.2.5) Communications equipment As shown in FIG. 3, the communication device 3 has a radio circuit 30, an antenna 31, a circuit board (not shown) on which the radio circuit 30 and the antenna 31 are formed, and a case (not shown) that houses the circuit board.

[0042] The circuit board is a printed wiring board with wiring conductors printed on a rectangular insulating substrate. In other words, the wireless circuit 30 is composed of a printed circuit including a wireless communication module with a built-in microcontroller. The shape of the circuit board is not limited to a rectangle, and includes various shapes other than a rectangle, such as a polygon or a circle.

[0043] The antenna 31 is configured to emit electromagnetic waves (for example, radio waves in the 920 MHz band or 2.4 GHz band) into space and receive electromagnetic waves from space. The antenna 31 is, for example, a pattern antenna formed of a conductor printed on a circuit board. The antenna 31 is, for example, formed in an L-shape at one end (bottom) of the surface of the circuit board. The antenna 31 is not limited to a pattern antenna, and may be a patch antenna (microstrip antenna), chip antenna, rod antenna, film antenna, etc.

[0044] The wireless circuit 30 extracts a wireless signal from the radio waves received by the antenna 31 and obtains control information (control commands) from the wireless signal. Furthermore, the wireless circuit 30 converts the control information into a dimming signal and transmits the converted dimming signal to the control circuit 403 of the power supply circuit 40. The wireless circuit 30 is capable of not only receiving but also transmitting wireless signals. For example, the wireless circuit 30 performs wireless communication in accordance with the BLE (Bluetooth (registered trademark) Low Energy) communication standard. The wireless circuit 30 can receive a wireless signal transmitted from a communication device 3 mounted on another lighting fixture 100 and transmit (relay) the received wireless signal, including the control information and the like, to a communication device 3 mounted on yet another lighting fixture 100.

[0045] The circuit board is electrically connected to a substrate 50 of a mounting board 5, which will be described later, via wiring 6 (see FIG. 1). The wiring 6 includes a pair of power feed lines for feeding power from the power supply circuit 40 of the power supply device 4 to the radio circuit 30, and a pair of signal lines for transmitting a dimming signal from the radio circuit 30 to the power supply circuit 40.

[0046] The power supply circuit 40 changes the target value of the direct current supplied to the light source module 20 from the control circuit 403 in response to a dimming signal received from the wireless circuit 30 via the wiring 6, thereby causing the light source module 20 to blink (switch between on and off), dim, and adjust the color.

[0047] The case is formed as a synthetic resin molded body made of a synthetic resin material such as polycarbonate resin, etc. The case accommodates the circuit board.

[0048] (2.2.6) Power supply As shown in FIG. 3, the power supply device 4 includes a power supply circuit 40 and a power supply case (not shown) that houses the power supply circuit 40.

[0049] 3 shows the circuit configuration of the power supply circuit 40. As shown in FIG. 3, the power supply circuit 40 includes a power conversion circuit 400, a first constant current circuit 401, a second constant current circuit 402, and a control circuit 403.

[0050] The power conversion circuit 400 includes, for example, a rectifier circuit such as a diode bridge, a boost chopper circuit (power factor correction circuit), etc. The power conversion circuit 400 converts AC power supplied from an external power source P1 into DC power. The external power source P1 is, for example, a commercial power system, and supplies AC voltage and current with an effective value of 100 V or 200 V. Note that the power conversion circuit 400 may include a switching power supply circuit with a power factor correction function, such as a step-down chopper circuit, a step-up / step-down chopper circuit, or a flyback converter, instead of the step-up chopper circuit.

[0051] Each of the first constant current circuit 401 and the second constant current circuit 402 has, for example, a step-down chopper circuit (buck converter). The first constant current circuit 401 steps down the DC voltage output from the power conversion circuit 400 and applies it to the warm white LEDs 201 of the light source module 20, and adjusts the DC current flowing through the warm white LEDs 201 of the light source module 20. The second constant current circuit 402 steps down the DC voltage output from the power conversion circuit 400 and applies it to the daylight white LEDs 201 of the light source module 20, and adjusts the DC current flowing through the daylight white LEDs 201 of the light source module 20. Note that each of the first constant current circuit 401 and the second constant current circuit 402 may have various chopper circuits, series regulators, etc. instead of the step-down chopper circuits.

[0052] The positive output terminal of the first constant current circuit 401 is connected to the plug connector of the right connection member 24 (see FIG. 2) via an output line, and the negative output terminal of the first constant current circuit 401 is connected to the plug connector of the left connection member 24 (see FIG. 2) via an output line. The positive output terminal of the second constant current circuit 402 is connected to the plug connector of the right connection member 24 via an output line, and the negative output terminal of the second constant current circuit 402 is connected to the plug connector of the left connection member 24 via an output line.

[0053] The control circuit 403 includes, for example, a microcontroller. The control circuit 403 controls the step-down chopper circuit of the first constant current circuit 401 so that the DC current supplied from the first constant current circuit 401 to the warm white LEDs 201 of the light source module 20 coincides with a target value. The control circuit 403 also controls the step-down chopper circuit of the second constant current circuit 402 so that the DC current supplied from the second constant current circuit 402 to the daylight LEDs 201 of the light source module 20 coincides with a target value. The control circuit 403 individually changes the target values ​​of the DC currents supplied to the warm white and daylight LEDs 201 of the light source module 20 in response to a dimming signal received from the wireless circuit 30 of the communication device 3.

[0054] The mounting board 5 constituting the power supply circuit 40 includes a substrate 50, a plurality of components 7, and a holding portion 8, as shown in FIG.

[0055] As shown in Fig. 1, the substrate 50 is a printed wiring board in which wiring conductors are printed on a rectangular insulating substrate. The substrate 50 has a first surface 501 and a second surface 502 (see Fig. 1). The first surface 501 and the second surface 502 face each other in the thickness direction (vertical direction) of the substrate 50. A plurality of components 7 are mounted on the first surface 501 of the substrate 50. The plurality of components 7 are electronic components that constitute at least a part of the power supply circuit 40.

[0056] The wiring 6 is electrically connected to the substrate 50. More specifically, the wiring 6 has, as a main body 60, a conductive portion (not shown) electrically connected to the substrate 50 and a covered portion 601 covering the conductive portion. A second connector 62 is mounted on the first surface 501 of the substrate 50 to which a first connector 61 provided at the tip of the main body 60 of the wiring 6 is connected. The holding portion 8 holds the covered portion 601 of the wiring 6. The wiring 6 of this embodiment has a conductor portion and a covered portion 601 as each of a plurality (three) of main bodies 60. That is, the wiring 6 of this embodiment has a plurality (three) of conductor portions and a plurality (three) of covered portions 601. The number of main bodies 60 (conductor portions and covered portions 601) is not limited and may be, for example, five.

[0057] As shown in FIG. 1 , the substrate 50 has a through hole 91 and a recess 92. The through hole 91 penetrates the substrate 50 in the thickness direction (vertical direction) of the substrate 50. The recess 92 is provided in an end surface 503 of the substrate (the front end surface in FIG. 1 ). The holding portion 8 of this embodiment is inserted into both the through hole 91 and the recess 92. That is, in this embodiment, the insertion portion 9 into which the holding portion 8 is inserted includes the through hole 91 and the recess 92. When the holding portion 8 is inserted into both the through hole 91 and the recess 92, the holding portion 8 holds the covered portion 601 of the wiring 6 between the portion of the substrate 50 that is sandwiched between the through hole 91 and the recess 92. This configuration has the advantage that the holding portion 8 can be easily inserted into both the through hole 91 and the recess 92, and the holding portion 8 can easily hold the covered portion 601 of the wiring 6.

[0058] The through hole 91 of this embodiment has a rectangular shape when viewed in the thickness direction (vertical direction) of the substrate 50. The through hole 91 of this embodiment is provided near the recess 92. That is, the through hole 91 of this embodiment is provided near the end face 503 on which the recess 92 is provided. Specifically, the through hole 91 of this embodiment is provided between the end face 503 and the second connector 62 in a direction perpendicular to the end face 503 when viewed in the thickness direction (vertical direction) of the substrate 50. The "direction perpendicular to the end face 503" referred to here is the longitudinal direction of the substrate 50 in the illustrated example.

[0059] The recess 92 of this embodiment is provided in a shape that extends from the end surface 503 of the substrate toward the second connector 62 when viewed in the thickness direction (vertical direction) of the substrate 50. As an example, the recess 92 of this embodiment is a notch (groove) that is formed by cutting out or punching a part of the end surface 503 of the substrate. Note that the recess 92 does not have to be the above-described notch, and the method for forming the recess 92 is not limited.

[0060] The recess 92 has a restricting portion 921 that restricts the holding portion 8 from coming out of the recess 92. More specifically, the restricting portion 921 restricts movement of the holding portion 8 so that the holding portion 8 maintains a state in which it holds the covered portion 601 of the wiring 6 between the portion of the substrate 50 that is sandwiched between the through hole 91 and the recess 92. This configuration has the advantage of being able to prevent the wiring 6 from becoming unheld by the holding portion 8.

[0061] The restricting portion 921 in this embodiment is a protrusion protruding from the inner surface of the recess 92. The protrusion protrudes from a portion of the inner surface of the recess 92 that is located on the through-hole 91 side (the left portion in FIG. 1). The protrusion has a substantially rectangular shape when viewed in the thickness direction (vertical direction) of the substrate 50. The above configuration has the advantage that it is possible to restrict the holding portion 8 from coming off the recess 92 with a simple structure. One end (the front end in FIG. 1) of the protrusion in this embodiment is connected to the end face 503.

[0062] At least a portion of the inner surface of the recess 92 is tapered in a manner that gets further away from the through hole 91 as it approaches the end face 503, as viewed in the thickness direction (vertical direction) of the substrate 50. That is, at least a portion of the inner surface of the recess 92 is inclined in a manner that gets further away from the through hole 91 as it approaches the end face 503, as viewed in the thickness direction (vertical direction) of the substrate 50. More specifically, a portion of the inner surface of the recess 92 located on the opposite side to the through hole 91 (the portion on the right in FIG. 1 ) is inclined in a manner that gets further away from the through hole 91 as it approaches the end face 503, as viewed in the thickness direction (vertical direction) of the substrate 50. This configuration has the advantage that it becomes easier to insert the holding portion 8 into the recess 92, and the holding portion 8 can hold the covered portion 601 of the wiring 6 more easily.

[0063] The holding portion 8 is a wire material. That is, the holding portion 8 is formed of a wire material. In the present disclosure, "wire material" refers to a thin, linear (i.e., long, linear) material. This configuration has the advantage that the holding portion 8 can be easily inserted into the insertion portion 9 (through-hole 91 and recess 92).

[0064] In this embodiment, the wire is a binding band 81. In other words, the holding unit 8 in this embodiment is a binding band 81. In this disclosure, the "binding band 81" is a long band having a locking component at one end and a cylindrical locking component at the other end for binding. This configuration has the advantage that the holding unit 8 can firmly hold the coated portion 601 of the wire 6.

[0065] (3) Effects As shown in FIG. 1 , the mounting board 5 according to this embodiment includes a substrate 50, a component 7, and a holding portion 8. The component 7 is mounted on the substrate 50. The holding portion 8 holds a covered portion 601 of the wiring 6 electrically connected to the substrate 50. The substrate 50 is provided with an insertion portion 9 through which the holding portion 8 is inserted. As a result, the mounting board 5 according to this embodiment does not need to include a fixing member for fixing the wiring 6 to the substrate 50, and therefore it is not necessary to ensure a mounting space on the substrate 50 for mounting the fixing member. As a result, the mounting board 5 according to this embodiment has the advantage of being able to reduce the mounting space.

[0066] In the mounting board 5 according to this embodiment, the insertion portion 9 into which the holding portion 8 is inserted includes a through hole 91 that penetrates the substrate 50 in the thickness direction of the substrate 50, and a recess 92 that is provided on the end surface 503 of the substrate. When the holding portion 8 is inserted into both the through hole 91 and the recess 92, the holding portion 8 holds the covered portion 601 of the wiring 6 between the portion of the substrate 50 that is sandwiched between the through hole 91 and the recess 92. This makes it easier to insert the holding portion 8 into both the through hole 91 and the recess 92, which has the advantage of allowing the holding portion 8 to easily hold the covered portion 601 of the wiring 6.

[0067] In the mounting board 5 according to this embodiment, the recess 92 has a restricting portion 921 that restricts the holding portion 8 from coming out of the recess 92. This has the advantage of preventing the wiring 6 from being released from being held by the holding portion 8.

[0068] In the mounting board 5 according to this embodiment, the restricting portion 921 of the recess 92 is a convex portion protruding from the inner surface of the recess 92. This has the advantage that the holding portion 8 can be restricted from coming off the recess 92 with a simple structure.

[0069] In the mounting substrate 5 according to this embodiment, at least a portion of the inner surface of the recess 92 is inclined, when viewed in the thickness direction (vertical direction) of the substrate 50, so as to move away from the through-hole 91 the closer it is to the end face 503. This has the advantage that the holding portion 8 can be more easily inserted into the recess 92, and the holding portion 8 can more easily hold the covered portion 601 of the wiring 6.

[0070] In the mounting board 5 according to this embodiment, the holding portion 8 is a wire rod, which has the advantage that the holding portion 8 can be easily inserted into the insertion portion 9 (through hole 91 and recess 92).

[0071] In the mounting board 5 according to this embodiment, the wire material is a binding band 81. This has the advantage that the holding portion 8 can firmly hold the covered portion 601 of the wire 6.

[0072] In the mounting board 5 according to this embodiment, the component 7 is an electronic component that constitutes at least a part of the power supply circuit 40 that supplies power to the light source module 20 (light source). This has the advantage of being able to suppress an increase in the number of components.

[0073] The lighting fixture 100 according to this embodiment includes a mounting board 5 and a light source module 20 (light source) that is illuminated by power supplied from a power supply circuit 40 that is at least partially configured by components 7. This provides the lighting fixture 100 according to this embodiment with the advantage of being able to reduce the mounting space.

[0074] (4) Variations The above-described embodiment is merely one of various embodiments of the present disclosure. The above-described embodiment can be modified in various ways depending on the design, etc., as long as the object of the present disclosure can be achieved. The following modifications may be implemented in appropriate combination. The same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

[0075] (4.1) First Modification In the mounting board 5 in the above-described embodiment, the insertion portion 9 through which the holding portion 8 is inserted includes a through hole 91 and a recess 92, whereas in the mounting board 5A in the first modified example shown in Figure 4, the insertion portion 9 differs from the mounting board 5 in that it includes two recesses 92a, 92b.

[0076] As shown in FIG. 4, the mounting board 5A includes a substrate 50A, a plurality of components 7, and a holder 8.

[0077] As shown in FIG. 4, the substrate 50A has two recesses 92a and 92b. Each of the two recesses 92a and 92b is provided on an end surface 503 of the substrate (the front end surface in FIG. 4). The holding portion 8 of the first modified example is inserted into the two recesses 92a and 92b. That is, in the first modified example, the insertion portion 9A through which the holding portion 8 is inserted includes the two recesses 92a and 92b. When the holding portion 8 is inserted into the two recesses 92a and 92b, the holding portion 8 holds the covered portion 601 of the wiring 6 between the portion of the substrate 50A sandwiched between the two recesses 92a and 92b. This configuration has the advantage that the holding portion 8 can be more easily inserted into the two recesses 92a and 92b, and the holding portion 8 can more easily hold the covered portion 601 of the wiring 6.

[0078] In the first modified example, of the two recesses 92a, 92b, the left recess 92a has a restricting portion 921 that restricts the holder 8 from coming off the left recess 92a. Similarly, of the two recesses 92a, 92b, the right recess 92b has a restricting portion 921 that restricts the holder 8 from coming off the right recess 92b.

[0079] In other words, one of the two recesses 92a, 92b has a restricting portion 921 that restricts the holder 8 from coming out of the recess. More specifically, the restricting portion 921 restricts movement of the holder 8 so as to maintain a state in which the holder 8 holds the covered portion 601 of the wiring 6 between the portion of the substrate 50A sandwiched between the two recesses 92a, 92b. The above configuration has the advantage of preventing the wiring 6 from being released from the holder 8. Note that in the first modified example, only one of the two recesses 92a, 92b may have the restricting portion 921. That is, in the first modified example, at least one of the two recesses 92a, 92b has the restricting portion 921. In other words, the one recess that is at least one of the two recesses 92a, 92b has the restricting portion 921 that restricts the holder 8 from coming out of the recess.

[0080] In the first modified example, the restricting portion 921 of the left recess 92a is a protrusion that protrudes from the inner surface of the left recess 92a. The protrusion that the left recess 92a has protrudes from a portion of the inner surface of the left recess 92a that is located on the side of the right recess 92b (i.e., the right portion). Similarly, the restricting portion 921 of the right recess 92b is a protrusion that protrudes from the inner surface of the right recess 92b. The protrusion that the right recess 92b has protrudes from a portion of the inner surface of the right recess 92b that is located on the side of the left recess 92a (i.e., the left portion).

[0081] In short, the restricting portion 921 of the first modified example is a convex portion protruding from the inner surface of one of the recesses 92 having the restricting portion 921. The convex portion protrudes from a portion of the inner surface of the one of the recesses that is located on the side of the other of the recesses. The "other recess" here refers to a recess 92 that is different from the one of the two recesses 92a, 92b. The convex portion is substantially rectangular when viewed in the thickness direction (vertical direction) of the substrate 50A. The above configuration has the advantage that it is possible to restrict the holder 8 from coming off the recess 92 with a simple structure. The convex portion of the present embodiment has one end (the front end in FIG. 4) connected to the end face 503.

[0082] In the first modified example, at least a portion of the inner surface of the left recess 92a is tapered in a manner that gradually moves away from the right recess 92b as it approaches the edge surface 503, as viewed in the thickness direction (vertical direction) of the substrate 50A. That is, at least a portion of the inner surface of the left recess 92a is inclined in a manner that gradually moves away from the right recess 92b as it approaches the edge surface 503, as viewed in the thickness direction (vertical direction) of the substrate 50A. More specifically, a portion of the inner surface of the left recess 92a located on the opposite side to the right recess 92b (i.e., the left portion) is inclined in a manner that gradually moves away from the right recess 92b as it approaches the edge surface 503, as viewed in the thickness direction (vertical direction) of the substrate 50A.

[0083] Similarly, at least a portion of the inner surface of the right recess 92b is tapered in a manner that gets further away from the left recess 92a as it approaches the edge surface 503, when viewed in the thickness direction (vertical direction) of the substrate 50A. That is, at least a portion of the inner surface of the right recess 92b is inclined in a manner that gets further away from the left recess 92a as it approaches the edge surface 503, when viewed in the thickness direction (vertical direction) of the substrate 50A. More specifically, the portion of the inner surface of the right recess 92b located opposite the left recess 92a (i.e., the right portion) is inclined in a manner that gets further away from the left recess 92a as it approaches the edge surface 503, when viewed in the thickness direction (vertical direction) of the substrate 50A.

[0084] In other words, at least a portion of the inner surface of one recess, which is one of the two recesses 92a, 92b, is tapered in a manner that moves away from the other recess as it approaches the end face 503, as viewed in the thickness direction of the substrate 50A. That is, at least a portion of the inner surface of the one recess is inclined in a manner that moves away from the other recess as it approaches the end face 503, as viewed in the thickness direction of the substrate 50A. More specifically, the portion of the inner surface of the one recess located on the opposite side to the other recess is inclined in a manner that moves away from the other recess as it approaches the end face 503, as viewed in the thickness direction (vertical direction) of the substrate 50A. This configuration has the advantage that it becomes easier to insert the holding portion 8 into the two recesses 92a, 92b, and the holding portion 8 can more easily hold the covered portion 601 of the wiring 6.

[0085] (4.2) Second Modification In the mounting board 5 in the above-described embodiment, the insertion portion 9 through which the holding portion 8 is inserted includes a through hole 91 and a recess 92, whereas in the mounting board 5B in the second modified example shown in FIG. 5, the insertion portion 9 differs from the mounting board 5 in that it includes two through holes 91a and 91b.

[0086] As shown in FIG. 5, the mounting board 5B includes a substrate 50B, a plurality of components 7, and a holder 8.

[0087] As shown in FIG. 5 , the substrate 50B has two through holes 91a and 91b. Each of the two through holes 91a and 91b penetrates the substrate 50B in the thickness direction (vertical direction) of the substrate 50B. The holding portion 8 of the second modified example is inserted into the two through holes 91a and 91b. That is, in the second modified example, the insertion portion 9B through which the holding portion 8 is inserted includes the two through holes 91a and 91b. When the holding portion 8 is inserted into the two through holes 91a and 91b, the holding portion 8 holds the covered portion 601 of the wiring 6 between the portion of the substrate 50B sandwiched between the two through holes 91a and 91b. This configuration has the advantage that the holding portion 8 is less likely to come off the two through holes 91a and 91b and can firmly hold the covered portion 601 of the wiring 6.

[0088] Each of the two through holes 91a and 91b in the second modified example has a rectangular shape when viewed in the thickness direction (vertical direction) of the substrate 50B.

[0089] (4.3) Third Modification In the mounting board 5 of the above-described embodiment, the holding portion 8, when inserted into both the through hole 91 and the recess 92, holds the covered portion 601 of the wiring 6 between the portion of the substrate 50 that is sandwiched between the through hole 91 and the recess 92. In contrast, in the mounting board 5C of the third modified example shown in Fig. 6, the holding portion 8C is curved, and differs from the mounting board 5 in that, when the central portion 821 is inserted into the through hole 91, the holding portion 8C holds the covered portion 601 of the wiring 6 between the edge portion 504 that forms the through hole 91 in the substrate 50C and the central portion 821.

[0090] As shown in FIG. 6, the mounting board 5C includes a substrate 50C, a plurality of components 7, and a holding portion 8C.

[0091] The holding portion 8C is a plate member 82 that is curved so that a central portion 821 protrudes further than both end portions 822. The holding portion 8C is formed of, for example, a resin material. Therefore, by bending both end portions 822 of the holding portion 8C toward the central portion 821, stress is generated in both end portions 822 in a direction away from the central portion 821.

[0092] As shown in FIGS. 6 and 7 , the substrate 50C has one through-hole 91. The through-hole 91 penetrates the substrate 50C in the thickness direction (vertical direction) of the substrate 50C. A central portion 821 of a holding portion 8C of the third modified example is inserted into the through-hole 91. That is, in the third modified example, an insertion portion 9C into which the holding portion 8C is inserted includes the through-hole 91. When the central portion 821 is inserted into the through-hole 91, the holding portion 8C holds the covered portion 601 of the wiring 6 between the edge portion 504 that forms the through-hole 91 in the substrate 50C and the central portion 821. With this configuration, there is no need to provide two through-holes in the substrate 50C in order for the holding portion 8C to hold the covered portion 601 of the wiring 6. That is, there is an advantage in that the mounting space can be further reduced.

[0093] The central portion 821 of the holding portion 8C is inserted into the through-hole 91 in a state in which both end portions 822 of the holding portion 8C are bent toward the central portion 821. As a result, stress is generated in both end portions 822 in a direction away from the central portion 821, and both end portions 822 are engaged with the second surface 502 of the substrate 50C, thereby fixing the holding portion 8C to the substrate 50C.

[0094] The wiring 6 is electrically connected to the substrate 50C. More specifically, as shown in FIG. 7 , the wiring 6 has, as a main body 60, a conductor portion 602 electrically connected to the substrate 50C and a covering portion 601 covering the conductor portion 602. The holding portion 8 holds the covering portion 601 of the wiring 6. Furthermore, a second connector 62 is mounted on the first surface 501 of the substrate 50C to which a first connector 61 provided at the tip of the main body 60 of the wiring 6 is connected. The wiring 6 of this embodiment has, as each of a plurality (three) of main bodies 60, a conductor portion 602 and a covering portion 601. The number of main bodies 60 (conductor portions 602 and covering portions 601) is not limited and may be, for example, five.

[0095] (4.4) Other Modifications Other variations of the above-described embodiment are listed below. The following variations may be realized in appropriate combination.

[0096] The holding portion 8 in the above-described embodiment is a binding band 81, but may be a string, tape, hook-and-loop fastener, or the like.

[0097] (summary) The mounting board (5, 5A to 5C) of the first aspect includes a substrate (50, 50A to 50C), a component (7), and a holding portion (8, 8C). The component (7) is mounted on the substrate (50, 50A to 50C). The holding portion (8, 8C) holds a covered portion (601) of a wiring (6) electrically connected to the substrate (50, 50A to 50C). The substrate (50, 50A to 50C) is provided with an insertion portion (9, 9A to 9C) through which the holding portion (8, 8C) is inserted.

[0098] This embodiment has the advantage of reducing the mounting space.

[0099] In the mounting board (5) of the second aspect, in the first aspect, the insertion portion (9) includes a through hole (91) and a recess (92). The through hole (91) penetrates the substrate (50) in the thickness direction. The recess (92) is provided on an end surface (503) of the substrate (50). When the holding portion (8) is inserted into both the through hole (91) and the recess (92), the holding portion (8) holds the covering portion (601) between the portion of the substrate (50) that is sandwiched between the through hole (91) and the recess (92).

[0100] This embodiment has the advantage that the holding portion (8) can be easily inserted into both the through hole (91) and the recess (92), and the holding portion (8) can easily hold the coated portion (601) of the wiring (6).

[0101] In the mounting board (5) of the third embodiment, the recess (92) in the second embodiment has a restricting portion (921) that restricts the holding portion (8) from coming off the recess (92).

[0102] This embodiment has the advantage that it is possible to prevent the wiring (6) from being released from the holding portion (8).

[0103] In the mounting board (5) of the fourth embodiment, the restricting portion (921) of the third embodiment is a protrusion protruding from the inner surface of the recess (92).

[0104] This embodiment has the advantage that the holding portion (8) can be prevented from coming off the recess (92) with a simple structure.

[0105] In the mounting board (5) of the fifth aspect, in the second or third aspect, at least a portion of the inner surface of the recess (92) is inclined so as to move away from the through-hole (91) as it approaches the end face (503) when viewed in the thickness direction of the board (50).

[0106] This embodiment has the advantage that the holding portion (8) can be more easily inserted into the recess (92), and the holding portion (8) can more easily hold the covered portion (601) of the wire (6).

[0107] In the mounting board (5A) of the sixth aspect, in the first aspect, the insertion portion (9A) includes two recesses (92a, 92b) provided on the end surface (503) of the substrate (50A). When the holding portion (8) is inserted into both of the two recesses (92a, 92b), the holding portion (8) holds the covering portion (601) between the portion of the substrate (50A) sandwiched between the two recesses (92a, 92b).

[0108] This embodiment has the advantage that the holding portion (8, 8C) can be more easily inserted into the two recesses (92a, 92b), and the holding portion (8) can more easily hold the covered portion (601) of the wire (6).

[0109] In the mounting board (5A) of the seventh aspect, in the sixth aspect, at least one of the two recesses (92a, 92b) has a restricting portion (921) that restricts the holding portion (8) from coming off the recess.

[0110] This embodiment has the advantage that it is possible to prevent the wiring (6) from being released from the holding portion (8).

[0111] In the mounting board (5A) of the eighth aspect, in the seventh aspect, the restricting portion (921) is a protrusion protruding from the inner surface of one of the recesses.

[0112] This embodiment has the advantage that the holding portion (8) can be prevented from coming off the recessed portion with a simple structure.

[0113] In the mounting substrate (5A) of the ninth aspect, in the sixth or seventh aspect, at least a portion of the inner surface of one of the two recesses (92a, 92b) is inclined so as to move away from the other recess different from the one recess of the two recesses as it approaches the end face (503) when viewed in the thickness direction of the substrate (50A).

[0114] This embodiment has the advantage that the holding portion (8) can be more easily inserted into the two recesses (92a, 92b), and the holding portion (8) can more easily hold the covered portion (601) of the wire (6).

[0115] In the mounting board (5B) of the tenth aspect, in the first aspect, the insertion portion (9B) includes two through holes (91a, 91b) penetrating the substrate (50B) in the thickness direction. When the holding portion (8) is inserted into both of the two through holes (91a, 91b), the holding portion (8) holds the covering portion (601) between the portion of the substrate (50B) sandwiched between the two through holes (91a, 91b).

[0116] This embodiment has the advantage that the holding portion (8) is less likely to come off the two through holes (91a, 91b), and the holding portion (8) can firmly hold the covered portion (601) of the wiring (6).

[0117] In the mounting board (5, 5A to 5B) of the eleventh aspect, in any one of the first to tenth aspects, the holding portion (8) is a wire rod.

[0118] This embodiment has the advantage that the holding portion (8) can be easily inserted into the insertion portions (9, 9A to 9B).

[0119] In the mounting board (5, 5A to 5B) of the twelfth aspect, in the eleventh aspect, the wire is a binding band (81).

[0120] This embodiment has the advantage that the holding portion (8) can firmly hold the covered portion (601) of the wire (6).

[0121] In a mounting board (5C) of a thirteenth aspect, in the first aspect, the insertion portion (9C) includes a through-hole penetrating through the thickness direction of the board (50C). The holding portion (8C) is curved so that a central portion (821) protrudes further than both end portions (822). When the central portion (821) is inserted into the through-hole, the holding portion (8C) holds the covering portion (601) between the central portion (821) and an edge portion that forms the through-hole in the board (50C).

[0122] This embodiment has the advantage of further reducing the mounting space.

[0123] In the mounting board (5, 5A to 5C) of the fourteenth aspect, in any one of the first to thirteenth aspects, the component (7) is an electronic component that constitutes at least a part of a power supply circuit (40) that supplies power to the light source (20).

[0124] This embodiment has the advantage of being able to suppress an increase in the number of parts.

[0125] A lighting fixture (100) of a fifteenth aspect includes a mounting board (5, 5A to 5C) according to any one of the first to fourteenth aspects and a light source (20). The light source (20) is illuminated by power supplied from a power supply circuit (40) at least part of which is constituted by a component (7).

[0126] This embodiment has the advantage of reducing the mounting space. [Explanation of symbols]

[0127] 5, 5A~5C Mounting board 50, 50A~50C board 503 End face 504 Edge 6 Wiring 601 Covered part 7 parts 8, 8C holding part 9, 9A~9C Insertion part 81 Cable ties 821 Central part 822 both ends 91, 91a, 91b through hole 92, 92a, 92b recesses 921 Regulatory Department 100 lighting fixtures 20 Light source (light source module) 40 Power circuit

Claims

1. A substrate; a component mounted on the substrate; a holding portion that holds a covered portion of a wiring electrically connected to the substrate, The substrate is provided with an insertion portion through which the holding portion is inserted. Mounting board.

2. The insertion portion is a through hole penetrating the substrate in a thickness direction; a recess provided on an end surface of the substrate, the holding portion holds the covering portion between a portion of the substrate that is sandwiched between the through hole and the recessed portion when the holding portion is inserted into both the through hole and the recessed portion. The mounting board according to claim 1 .

3. The recess has a restricting portion that restricts the holding portion from coming out of the recess. The mounting board according to claim 2 .

4. The restricting portion is a protrusion protruding from the inner surface of the recess. The mounting board according to claim 3 .

5. At least a part of the inner surface of the recess is inclined in the thickness direction so as to become farther away from the through hole as it approaches the end surface. The mounting board according to claim 2 .

6. the insertion portion includes two recesses provided on an end surface of the substrate, the holding portion holds the covering portion between the holding portion and a portion of the substrate sandwiched between the two recesses when the holding portion is inserted into both of the two recesses. The mounting board according to claim 1 .

7. At least one of the two recesses, i.e., one recess, has a restricting portion that restricts the holding portion from coming off the one recess. The mounting board according to claim 6 .

8. The restricting portion is a protrusion protruding from the inner surface of the one recess. The mounting board according to claim 7 .

9. at least a part of an inner surface of one of the two recesses is inclined, as viewed in the thickness direction of the substrate, so as to become farther away from the other recess of the two recesses different from the one recess as the inner surface approaches the end face; The mounting board according to claim 6 .

10. the insertion portion includes two through holes penetrating the substrate in a thickness direction, the holding portion holds the covering portion between the two through holes and a portion of the substrate that is sandwiched between the two through holes when the holding portion is inserted into both of the two through holes. The mounting board according to claim 1 .

11. The holding portion is a wire rod. The mounting board according to any one of claims 1 to 10.

12. The wire is a binding band. The mounting board according to claim 11 .

13. the insertion portion includes a through hole penetrating the substrate in a thickness direction, The holding portion is The center part is curved so that it protrudes more than both ends, and holding the covering portion between an edge portion of the substrate that defines the through hole and the central portion while the central portion is inserted into the through hole. The mounting board according to claim 1 .

14. The component is an electronic component that constitutes at least a part of a power supply circuit that supplies power to the light source. The mounting board according to any one of claims 1 to 10.

15. The mounting substrate according to any one of claims 1 to 10; a light source that is lit by power supplied from a power supply circuit at least part of which is constituted by the component; Lighting fixtures.

Images