Mounting substrate, power supply device, and luminaire

Abstract

To reduce stress applied to an electric wire while a first connector is connected to a second connector.SOLUTION: The mounting substrate 5 includes a substrate 50, a first component 51, and a second component 52. The first component 51 and the second component 52 are mounted on the substrate 50. The second component 52 is a second connector 62 to which a first connector 61 provided at a leading end of an electrical wire 60 from the outside is connected. The first component 51 is located on the same side as the electrical wire 60 with respect to the substrate 50 in the thickness direction of the substrate 50, and overlaps the electrical wire 60 in plan view from the thickness direction of the substrate 50.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a mounting board, a power supply device, and a lighting fixture. More specifically, the present disclosure relates to a mounting board including a substrate and a plurality of components mounted on the substrate, a power supply device including the mounting board, and a lighting fixture including the power supply device. [Background technology]

[0002] Patent Document 1 describes a mounting board that includes a printed circuit board and a connector mounted on the printed circuit board. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-41485 Summary of the Invention [Problem to be solved by the invention]

[0004] In a mounting board such as that described in Patent Document 1, a connector (second connector) may be arranged in an inner region of the printed circuit board (substrate). In this case, when a mating connector (first connector) is connected to the connector, stress on the electric wire to which the mating connector is connected may increase.

[0005] An object of the present disclosure is to provide a mounting board, a power supply device, and a lighting fixture that can reduce stress on electric wires when a first connector is connected to a second connector. [Means for solving the problem]

[0006] A mounting board according to one embodiment of the present disclosure includes a substrate, a first component, and a second component. The first component and the second component are mounted on the substrate. The second component is a second connector to which a first connector provided at the tip of an electric wire from outside is connected. The first component is located on the same side of the substrate as the electric wire in a thickness direction of the substrate, and overlaps with the electric wire in a plan view from the thickness direction of the substrate.

[0007] A power supply device according to one aspect of the present disclosure includes the mounting board and a case that houses the mounting board.

[0008] A lighting fixture according to one aspect of the present disclosure includes the power supply device and a light source, wherein the light source is lit by power supplied from the power supply device. [Effects of the Invention]

[0009] According to the mounting board, power supply device, and lighting fixture according to one aspect of the present disclosure, it is possible to reduce stress on the electric wire when the first connector is connected to the second connector. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view of a power supply device including a mounting board according to a first embodiment. [Figure 2] FIG. 2 is a plan view of a main part of the power supply device including the mounting board. [Figure 3] FIG. 3 is a cross-sectional view of a main part of a power supply device including the above mounting board. [Figure 4] FIG. 4 is an exploded perspective view of the lighting fixture according to the first embodiment. [Figure 5] FIG. 5 is a circuit block diagram of a power supply device including the above mounting board. [Figure 6] FIG. 6 is a cross-sectional view of a main part of a mounting board according to a first modification of the first embodiment. [Figure 7] FIG. 7 is a plan view of a main part of a mounting board according to the second embodiment. [Figure 8] FIG. 8 is a side view of a main part of the mounting board. DETAILED DESCRIPTION OF THE INVENTION

[0011] The mounting board and lighting fixture according to the first and second embodiments will be described below with reference to the drawings. The drawings referred to in the first and second embodiments are schematic diagrams, and the sizes and thicknesses of the components in the drawings do not necessarily reflect the actual dimensions, and the ratios of sizes and thicknesses between the components do not necessarily reflect the actual dimensional ratios.

[0012] (Embodiment 1) (1) Overview First, an overview of a mounting board 5, a power supply device 4, and a lighting fixture 100 according to the first embodiment will be described with reference to FIGS.

[0013] 1 to 3, the mounting board 5 according to the first embodiment includes a board 50, a first component 51, and a second component 52. The first component 51 and the second component 52 are mounted on the board 50. The second component 52 is a second connector 62 to which a first connector 61 provided at the tip of an electric wire 60 extending from the outside (in this embodiment, the communication device 3) is connected. The first component 51 is located on the same side of the board 50 as the electric wire 60 in the second direction D2 (thickness direction of the board 50), and overlaps with the electric wire 60 in a plan view from the second direction D2.

[0014] In the mounting board 5 according to the first embodiment, when the first connector 61 is connected to the second connector 62, the first component 51 and the electric wire 60 overlap in a plan view from the second direction D2. This makes it possible for the first component 51 to support the electric wire 60, and as a result, it becomes possible to reduce stress applied to the electric wire 60 in the second direction D2. That is, according to the mounting board 5 according to the first embodiment, it becomes possible to reduce stress applied to the electric wire 60 when the first connector 61 is connected to the second connector 62.

[0015] 1 to 3, the power supply device 4 according to the first embodiment includes a mounting board 5 and a power supply case 41 (case). The power supply case 41 houses the mounting board 5 therein.

[0016] The power supply device 4 according to the first embodiment includes the mounting board 5, and therefore it is possible to reduce the stress applied to the wires 60 when the first connector 61 is connected to the second connector 62.

[0017] 1 to 4, the lighting fixture 100 according to the first embodiment includes a power supply device 4 and a light source module 20 (light source). The light source module 20 is turned on by power supplied from the power supply device 4.

[0018] The lighting fixture 100 according to the first embodiment includes the power supply device 4, and therefore it is possible to reduce the stress applied to the electric wire 60 when the first connector 61 is connected to the second connector 62.

[0019] (2) Details Next, the components of the mounting board 5, the power supply device 4, and the lighting fixture 100 according to the first embodiment will be described with reference to FIGS.

[0020] The lighting fixture 100 according to the first 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.

[0021] As shown in FIGS. 4 and 5, the lighting fixture 100 according to the first embodiment includes a fixture body 1, a light source unit 2, a communication device 3, and a power supply device 4.

[0022] 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.

[0023] (2.1) Device body As shown in Fig. 4, 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.

[0024] As shown in Fig. 4, 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.

[0025] As shown in FIG. 4, 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, made of a synthetic resin material and has a cylindrical shape. For example, a power cable C1 that is routed from an external power source P1 (see FIG. 5) 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.

[0026] As shown in Fig. 4, 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.

[0027] 4, 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.

[0028] 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.

[0029] As shown in FIG. 4, 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. 4). 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.

[0030] (2.2) Light source unit As shown in FIGS. 4 and 5, 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.

[0031] (2.2.1) Light source module As shown in Fig. 4, 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] In the lighting fixture 100 according to the first 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 the first 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.

[0036] (2.2.2) Supporting member 4, 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] (2.2.3) Cover As shown in Fig. 4, 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.

[0041] 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.

[0042] 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.

[0043] (2.2.4) End members As shown in Figure 4, 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.

[0044] 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.

[0045] (2.2.5) Communications equipment As shown in FIG. 5, 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] The circuit board is electrically connected to a substrate 50 of a mounting board 5, which will be described later, via electric wires 60 (see FIGS. 1 and 2). The electric wires 60 include 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.

[0050] The power supply circuit 40 changes the target value of the DC 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 electric wire 60, thereby causing the light source module 20 to blink (switch between on and off), dim, and adjust the color.

[0051] 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.

[0052] (2.2.6) Power supply device As shown in FIGS. 1 to 3, the power supply device 4 includes a power supply circuit 40 and a power supply case 41 that houses the power supply circuit 40.

[0053] 5 shows the circuit configuration of the power supply circuit 40. As shown in FIG. 5, 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.

[0054] 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.

[0055] 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.

[0056] The positive output terminal of the first constant current circuit 401 is connected to the right-side connecting member 24 (plug connector) via an output line, and the negative output terminal of the first constant current circuit 401 is connected to the left-side connecting member 24 (plug connector) via an output line. The positive output terminal of the second constant current circuit 402 is connected to the right-side connecting member 24 (plug connector) via an output line, and the negative output terminal of the second constant current circuit 402 is connected to the left-side connecting member 24 (plug connector) via an output line.

[0057] 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.

[0058] As shown in FIG. 1 , the power supply case 41 has a bottom plate 410 formed in an elongated rectangular shape, and a first side plate 411 and a second side plate 412 protruding downward from both ends (front and rear ends) of the bottom plate 410 along the longitudinal direction (left-right direction). Each of the first side plate 411 and the second side plate 412 is formed in an elongated rectangular shape. The bottom plate 410, the first side plate 411, and the second side plate 412 are formed integrally into a square trough shape, for example, by bending an elongated metal plate. The power supply case 41 houses the mounting board 5 that constitutes the power supply circuit 40. That is, the power supply device 4 according to the first embodiment includes the mounting board 5 and a power supply case 41 (case) that houses the mounting board 5. The open lower surface of the power supply case 41 is covered with an insulating sheet having electrical insulation properties.

[0059] The power supply device 4 is attached by screwing the bottom surface of the power supply case 41 to the top surface of the support member 21 of the light source unit 2, with the bottom surface of the power supply case 41 facing the support member 21. When the power supply case 41 is attached to the support member 21, the opening (bottom surface) of the power supply case 41 is closed by the bottom plate 210 of the support member 21. Note that the method of fixing the power supply case 41 to the support member 21 is not limited to screwing, and any other appropriate fixing method such as crimping can be used.

[0060] As shown in FIGS. 1 to 3, the mounting board 5 constituting the power supply circuit 40 includes a board 50 and a plurality of components. The plurality of components are mounted on the board 50. In the example of FIGS. 1 to 3, the plurality of components include a first component 51, a second component 52, and a third component 53. That is, the mounting board 5 according to the first embodiment includes the board 50, and the first component 51 and the second component 52 mounted on the board 50. The mounting board 5 according to the first embodiment further includes a third component 53 mounted on the board 50.

[0061] 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. 3). 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 are mounted on the first surface 501 of the substrate 50.

[0062] The first component 51 is an electronic component 7 that constitutes the power supply circuit 40. The second component 52 is a second connector 62 to which a first connector 61 provided at the tip of an electric wire 60 from the outside (in this embodiment, the communication device 3) is connected. The third component 53 is an electronic component 7 that constitutes the power supply circuit 40, similar to the first component 51.

[0063] The first component 51 and the second component 52 are arranged side by side in the longitudinal direction (left-right direction) of the substrate 50. The first component 51 is disposed between the second component 52 and the third component 53 in the longitudinal direction of the substrate 50. In this embodiment, the direction in which the first component 51 and the second component 52 are arranged corresponds to the first direction D1. That is, in the mounting substrate 5 according to the first embodiment, the first component 51 is disposed between the second component 52 and the third component 53 in the first direction D1.

[0064] 1 to 3, in the mounting board 5 according to the first embodiment, the first component 51 is located on the same side of the board 50 as the electric wire 60 (the side of the first surface 501 of the board 50) in the thickness direction (second direction D2) of the board 50. As shown in FIG. 2, the first component 51 overlaps with the electric wire 60 in a plan view from the thickness direction of the board 50. Here, "the first component 51 overlaps with the electric wire 60 in a plan view from the thickness direction of the board 50" includes the first component 51 overlapping with a part of the electric wire 60 and the first component 51 overlapping with the entire electric wire 60 in a plan view from the thickness direction of the board 50. In other words, "the first component 51 overlaps with the electric wire 60 in a plan view from the thickness direction of the board 50" means that the first component 51 overlaps with at least a part of the electric wire 60 in a plan view from the thickness direction of the board 50. This allows the first part 51 to support the electric wire 60 in the thickness direction of the substrate 50, and as a result, it is possible to prevent the electric wire 60 from bending in the thickness direction of the substrate 50, thereby reducing the stress on the electric wire 60.

[0065] That is, in the mounting board 5 according to the first embodiment, the first component 51 is located on the same side of the board 50 as the electric wire 60 (the first surface 501 side of the board 50) in the thickness direction (vertical direction) of the board 50, and overlaps with the electric wire 60 in a plan view from the thickness direction of the board 50. In this embodiment, the thickness direction (vertical direction) of the board 50 corresponds to the second direction D2.

[0066] 2, the electric wire 60 coming from the outside (the communication device 3 in this embodiment) is disposed between the first side plate 411 of the power supply case 41 and the third component 53 in the third direction D3, which is the width direction of the board 50. In other words, the first side plate 411 of the power supply case 41 and the third component 53 are located on both sides of the electric wire 60 in the third direction D3. This makes it possible to restrict movement of the electric wire 60 in the third direction D3. Furthermore, as described above, because a portion of the electric wire 60 is supported by the first component 51, it is also possible to restrict movement of the electric wire 60 in the second direction D2.

[0067] Here, in the second direction D2, the dimension H1 of the first component 51 is preferably equal to or greater than the dimension H2 obtained by adding the dimension of the first connector 61 and the dimension of the second connector 62 (see FIG. 3). This makes it possible to prevent the wires 60 from bending, thereby further reducing the stress applied to the wires 60. That is, in the mounting board 5 according to the first embodiment, the dimension H1 of the first component 51 in the thickness direction (second direction D2) of the board 50 is preferably equal to or greater than the dimension H2 obtained by adding the dimension of the first connector 61 and the dimension of the second connector 62 in a state in which the first connector 61 is connected to the second connector 62.

[0068] In addition, in the second direction D2, it is preferable that the dimension H3 of the third component 53 be equal to or greater than the dimension H1 of the first component 51. This makes it possible to restrict movement of the wire 60 in the third direction D3 between the third component 53 and the first side plate 411 of the power supply case 41.

[0069] 2, in plan view from the second direction D2, the shortest distance L1 between the first side plate 411 of the power supply case 41 and the first component 51 is preferably smaller than the diameter d1 of the electric wire 60. With this configuration, it is possible to prevent the electric wire 60 from dropping toward the board 50 side through the gap between the first side plate 411 of the power supply case 41 and the first component 51.

[0070] In this embodiment, the direction in which the first side plate 411 and the second side plate 412 of the power supply case 41 are aligned corresponds to the third direction D3. That is, the power supply case 41 that houses the substrate 50 of the mounting board 5 has the first side plate 411 and the second side plate 412 aligned in the third direction D3 that is perpendicular to both the first direction D1, which is the direction in which the first component 51 and the second component 52 are aligned, and the second direction D2, which is the thickness direction of the substrate 50.

[0071] (3) Effects In the mounting board 5 according to the first embodiment, when the first connector 61 is connected to the second connector 62, the first component 51 and the electric wire 60 overlap in a plan view from the second direction D2. This allows the first component 51 to support the electric wire 60 in the second direction D2, and as a result, it becomes possible to reduce stress applied to the electric wire 60 in the second direction D2. That is, according to the mounting board 5 according to the first embodiment, it becomes possible to reduce stress applied to the electric wire 60 when the first connector 61 is connected to the second connector 62.

[0072] Furthermore, in the mounting board 5 according to the first embodiment, the dimension H1 of the first component 51 in the second direction D2 is equal to or greater than the dimension H2 obtained by adding the dimension of the first connector 61 and the dimension of the second connector 62 in a state in which the first connector 61 is connected to the second connector 62. This makes it possible to prevent the electric wire 60 from bending in the second direction D2, thereby further reducing the stress applied to the electric wire 60.

[0073] Furthermore, in the mounting board 5 according to embodiment 1, the electric wire 60 is arranged between the first side plate 411 of the power supply case 41 and the third component 53, so that it is possible to restrict movement of the electric wire 60 in the third direction D3.

[0074] Furthermore, in the mounting board 5 according to embodiment 1, the dimension H3 of the third component 53 is equal to or greater than the dimension H1 of the first component 51, and therefore it is possible to reduce stress on the wire 60 compared to when the dimension H3 of the third component 53 is less than the dimension H1 of the first component 51.

[0075] (4) Variations Embodiment 1 is merely one of various embodiments of the present disclosure. Various modifications of Embodiment 1 can be made depending on the design, etc., as long as the object of the present disclosure can be achieved. Modifications of Embodiment 1 are listed below. The modifications described below can be applied in appropriate combinations.

[0076] (4.1) Variation 1 In the first embodiment, the first component 51 is an electronic component 7, but the first component 51 may also be a jumper wire 8 mounted on the substrate 50, as shown in Fig. 6. In this case, it is preferable that the dimension H1 of the first component 51 (jumper wire 8) in the second direction D2 is equal to or greater than the dimension H2 (see Fig. 3) obtained by adding the dimension of the first connector 61 and the dimension of the second connector 62 when the first connector 61 is connected to the second connector 62.

[0077] As with the mounting board 5 according to embodiment 1, the mounting board 5 according to modification 1 also makes it possible to reduce the stress applied to the electric wires 60 when the first connector 61 is connected to the second connector 62. Furthermore, when the first component 51 is a jumper wire 8 as in the mounting board 5 according to modification 1, it is possible to inexpensively realize a configuration that reduces the stress applied to the electric wires 60.

[0078] (4.2) Other Modifications 2, in the first embodiment, the electric wire 60 is arranged between the first side plate 411 of the power supply case 41 and the third component 53 in the third direction D3, but the electric wire 60 may also be arranged between the second side plate 412 of the power supply case 41 and the third component 53 in the third direction D3. In other words, the second side plate 412 of the power supply case 41 and the third component 53 may be located on both sides of the electric wire 60 in the third direction D3.

[0079] In the first embodiment, there is one first part 51, but there may be two or more first parts 51.

[0080] In embodiment 1, the first component 51 is an electronic component 7, and in variant 1, the first component 51 is a jumper wire 8, but the first component 51 is not limited to the electronic component 7 and the jumper wire 8, and may be any other component that can support the electric wire 60 in the second direction D2.

[0081] (Embodiment 2) Next, a mounting board 5 according to embodiment 2 will be described with reference to Fig. 7 and Fig. 8. Regarding the mounting board 5 according to embodiment 2, the same components as those in the mounting board 5 according to embodiment 1 are denoted by the same reference numerals, and the description thereof will be omitted.

[0082] The mounting board 5 according to the second embodiment differs from the mounting board 5 according to the first embodiment in that the third component 53 and the fourth component 54 are located on both sides of the electric wire 60 in the third direction D3.

[0083] 7 and 8, the mounting board 5 includes a substrate 50 and a plurality of components. The plurality of components are mounted on the substrate 50. In the example of FIGS. 7 and 8, the plurality of components include a first component 51, a second component 52, a third component 53, and a fourth component 54. That is, the mounting board 5 according to the second embodiment includes the substrate 50 and the first component 51 and the second component 52 mounted on the substrate 50. The mounting board 5 according to the second embodiment further includes a third component 53 and a fourth component 54 mounted on the substrate 50.

[0084] 7 and 8, the first part 51 and the second part 52 are aligned in the first direction D1. In addition, the first part 51 is located between the second part 52 and the third part 53 and the fourth part 54 in the first direction D1. In other words, the first part 51 is located between the second part 52 and the third part 53 and the fourth part 54 in the first direction D1, which is the direction in which the first part 51 and the second part 52 are aligned.

[0085] 7 and 8, the third component 53 and the fourth component 54 are located on either side of the electric wire 60 in the third direction D3. The third direction D3 is a direction perpendicular to both the first direction D1 and the second direction D2, which is the thickness direction of the substrate 50. In other words, the electric wire 60 is disposed between the third component 53 and the fourth component 54 in the third direction D3.

[0086] 7, in a plan view of the substrate 50 in the thickness direction (second direction D2), the shortest distance L1 between the first component 51 and the third component 53 is preferably smaller than the diameter d1 of the electric wire 60. Also, as shown in FIG. 7, in a plan view of the substrate 50 in the thickness direction (second direction D2), the shortest distance L2 between the first component 51 and the fourth component 54 is preferably smaller than the diameter d1 of the electric wire 60. These configurations make it possible to prevent the electric wire 60 from dropping toward the substrate 50 between the first component 51 and the third component 53 or between the first component 51 and the fourth component 54.

[0087] Furthermore, in the second direction D2, which is the thickness direction of the board 50, the dimension H1 of the first component 51 is preferably equal to or greater than the dimension H2 obtained by adding the dimension of the first connector 61 and the dimension of the second connector 62. In the example of Fig. 8, the dimension H1 of the first component 51 is greater than the dimension H2 obtained by adding the dimension of the first connector 61 and the dimension of the second connector 62. This makes it possible to prevent the electric wire 60 from bending in the second direction D2, thereby further reducing the stress applied to the electric wire 60.

[0088] Furthermore, in the second direction D2, which is the thickness direction of the board 50, it is preferable that the dimension H3 of the third component 53 and the dimension H4 of the fourth component 54 are each equal to or greater than the dimension H1 of the first component 51. In the example of Fig. 8, the dimension H3 of the third component 53 and the dimension H4 of the fourth component 54 are each greater than the dimension H1 of the first component 51. This makes it possible to restrict movement of the wire 60 in the third direction D3 more effectively than when the dimension H3 of the third component 53 and the dimension H4 of the fourth component 54 are each smaller than the dimension H1 of the first component 51.

[0089] In the mounting board 5 according to the second embodiment, as in the mounting board 5 according to the first embodiment, it is possible to reduce the stress applied to the wires 60 when the first connector 61 is connected to the second connector 62.

[0090] The various configurations described in the second embodiment can be adopted in appropriate combination with the various configurations (including modified examples) described in the first embodiment.

[0091] (Aspect) The present specification discloses the following aspects.

[0092] The mounting board (5) according to the first aspect includes a substrate (50), a first component (51), and a second component (52). The first component (51) and the second component (52) are mounted on the substrate (50). The second component (52) is a second connector (62) to which a first connector (61) provided at the tip of an electric wire (60) from the outside is connected. The first component (51) is located on the same side of the substrate (50) as the electric wire (60) in a thickness direction (D2) of the substrate (50), and overlaps with the electric wire (60) in a plan view from the thickness direction (D2) of the substrate (50).

[0093] According to this embodiment, it is possible to reduce stress applied to the electric wire (60) in a state in which the first connector (61) is connected to the second connector (62).

[0094] In the mounting board (5) of the second aspect, in the first aspect, the dimension (H1) of the first component (51) in the thickness direction (D2) of the board (50) is equal to or greater than the dimension (H2) obtained by adding the dimension of the first connector (61) and the dimension of the second connector (62) when the first connector (61) is connected to the second connector (62).

[0095] According to this embodiment, it is possible to reduce the stress applied to the electric wire (60) compared to when the dimension (H1) is less than the dimension (H2).

[0096] The mounting board (5) according to the third aspect is the same as that according to the first or second aspect, and further includes a third component (53) and a fourth component (54). The third component (53) and the fourth component (54) are mounted on the board (50). The first component (51) is located between the second component (52) and the third component (53) and the fourth component (54) in the first direction (D1). The first direction (D1) is the direction in which the first component (51) and the second component (52) are aligned. The third component (53) and the fourth component (54) are located on both sides of the electric wire (60) in the third direction (D3). The third direction (D3) is a direction perpendicular to both the first direction (D1) and the second direction (D2). The second direction (D2) is the thickness direction of the board (50).

[0097] According to this embodiment, it is possible to restrict the movement of the wire (60) in the third direction (D3).

[0098] In the mounting board (5) according to the fourth aspect, in the third aspect, the dimensions (H3, H4) of the third component (53) and the fourth component (54) in the second direction (D2) are equal to or greater than the dimension (H1) of the first component (51).

[0099] According to this embodiment, it is possible to restrict movement of the wire (60) in the third direction (D3) compared to when the dimensions (H3, H4) of the third part 53 and the fourth part 54 are less than the dimension H1 of the first part 51.

[0100] The mounting board (5) according to a fifth aspect is the same as that according to the first or second aspect, and further includes a third component (53). The third component (53) is mounted on the substrate (50). The case (41) that houses the substrate (50) has a first side plate (411) and a second side plate (412) that are aligned in a third direction (D3). The third direction (D3) is a direction perpendicular to both the first direction (D1) and the second direction (D2). The first direction (D1) is a direction in which the first component (51) and the second component (52) are aligned. The second direction (D2) is a thickness direction of the substrate (50). The first component (51) is disposed between the second component (52) and the third component (53) in the first direction (D1). The first side plate 411 or the second side plate 412 of the case 41 and the third component 53 are located on both sides of the wire 60 in the third direction D3.

[0101] According to this embodiment, it is possible to restrict the movement of the wire (60) in the third direction (D3).

[0102] In the mounting board (5) according to the sixth aspect, in the fifth aspect, the dimension (H3) of the third component (53) in the second direction (D2) is equal to or greater than the dimension (H1) of the first component (51).

[0103] According to this embodiment, it is possible to restrict movement of the wire (60) in the third direction (D3) more effectively than when the dimension (H3) of the third component (53) is less than the dimension (H1) of the first component (51).

[0104] In the mounting board (5) according to a seventh aspect, in any one of the first to sixth aspects, the first component (51) is an electronic component (7) that constitutes a power supply circuit (40).

[0105] According to this aspect, it is possible to suppress an increase in the number of parts.

[0106] A power supply device (4) according to an eighth aspect includes the mounting board (5) according to any one of the first to seventh aspects and a case (41). The case (41) houses the mounting board (5).

[0107] According to this embodiment, it is possible to reduce stress applied to the electric wire (60) in a state in which the first connector (61) is connected to the second connector (62).

[0108] A lighting fixture (100) according to a ninth aspect includes the power supply device (4) according to the eighth aspect and a light source (20). The light source (20) is turned on by power supplied from the power supply device (4).

[0109] According to this embodiment, it is possible to reduce stress applied to the electric wire (60) in a state in which the first connector (61) is connected to the second connector (62).

[0110] The configurations according to the second to seventh aspects are not essential for the mounting board (5) and can be omitted as appropriate. [Explanation of symbols]

[0111] 4 Power supply 5 Mounting board 20 Light source module (light source) 40 Power circuit 41 Power supply case (case) 50 boards 51 First Part 52 Second Part 53 Third Part 54 4th part 60 Electric wire 61 First Connector 62 Second Connector 100 lighting fixtures 411 1st side plate 412 2nd side plate D1 1st direction D2 Second direction (thickness direction of board) D3 Third direction H1, H2, H3, H4 dimensions

Claims

1. A substrate; a first component and a second component mounted on the substrate, the second component is a second connector to which a first connector provided at the tip of an electric wire from outside is connected, The first part is Located on the same side of the board as the electric wire in the thickness direction of the board, and The substrate overlaps with the electric wire in a plan view from the thickness direction. Mounting board.

2. a dimension of the first component in the thickness direction of the board is equal to or greater than a sum of a dimension of the first connector and a dimension of the second connector in a state where the first connector is connected to the second connector; The mounting board according to claim 1 .

3. further comprising a third component and a fourth component mounted on the substrate; the first component is located between the second component and the third component and the fourth component in a first direction in which the first component and the second component are aligned, the third component and the fourth component are located on both sides of the electric wire in a third direction perpendicular to both the first direction and the second direction, which is the thickness direction of the board. The mounting board according to claim 1 or 2.

4. In the second direction, a dimension of each of the third part and the fourth part is equal to or greater than a dimension of the first part. The mounting board according to claim 3 .

5. further comprising a third component mounted on the substrate; a case that houses the board has a first side plate and a second side plate that are aligned in a third direction that is perpendicular to both a first direction in which the first component and the second component are aligned and a second direction that is the thickness direction of the board; the first component is disposed between the second component and the third component in the first direction, the first side plate or the second side plate of the case and the third component are located on both sides of the electric wire in the third direction. The mounting board according to claim 1 or 2.

6. a dimension of the third part in the second direction is equal to or greater than a dimension of the first part; The mounting board according to claim 5 .

7. the first component is an electronic component that constitutes a power supply circuit; The mounting board according to claim 1 or 2.

8. The mounting substrate according to claim 1 or 2; a case that houses the mounting board, power supply.

9. The power supply device according to claim 8; a light source that is lit by power supplied from the power supply device, Lighting fixtures.

Images