Wiring accessory

Abstract

To improve a degree-of-freedom of an arrangement of an electronic component mounted to a first substrate.SOLUTION: In a wiring accessory (100) of the present disclosure, a first substrate (21) includes a first surface (211) and a second surface (212), and an inner side terminal is mounted to the first surface (211). A second substrate (31) is electrically connected to the first substrate (21), and an electric conversion circuit (32) is mounted thereto. An identification IC (24) is mounted to the second surface (212), and identifies charging specifications of an electric device. The electric conversion circuit (32) contains a coil (322). The coil (322) is arranged to the second surface (212) side relative to the first substrate (21) in an insertion direction. The wiring accessory (100) is arranged between the identification IC (24) and the coil (322) in the insertion direction, and further comprises an insulation member (5) electrically insulating the identification IC (24) and the coil (322) from each other.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates generally to wiring devices, and more particularly to wiring devices having an inner terminal to which a plug-in outer terminal is connected. [Background technology]

[0002] Patent Document 1 describes a wiring device that includes a USB socket (inner terminal) to which a USB plug (outer terminal) is connected, and a first board on which the USB socket is mounted. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-113239 A Summary of the Invention

[0004] In a wiring device such as that described in Patent Document 1, it is desirable to improve the degree of freedom in arranging electronic components mounted on the first board.

[0005] An object of the present disclosure is to provide a wiring accessory that allows for greater freedom in the arrangement of electronic components mounted on a first board.

[0006] A wiring device according to an embodiment of the present disclosure includes an inner terminal, a first board, a second board, and an identification IC. A plug-in outer terminal is connected to the inner terminal. The first board has a first surface and a second surface opposite to the first surface, and the inner terminal is mounted on the first surface. The second board is electrically connected to the first board and is mounted with a power conversion circuit that converts a first power into a second power. The identification IC is mounted on the second surface and identifies a charging specification of an electric device electrically connected via the inner terminal and the outer terminal. The power conversion circuit includes a coil. The coil is disposed on the second surface side of the first board in a direction in which the outer terminal is inserted into the inner terminal. The wiring device further includes an insulating member disposed between the identification IC and the coil in the insertion direction and electrically insulating the identification IC and the coil. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view of a wiring device according to an embodiment. [Diagram 2] FIG. 2 is a perspective view of the wiring device with a cover removed. [Diagram 3] FIG. 3 is an exploded perspective view of the wiring device. [Figure 4] FIG. 4 is an exploded perspective view of a housing included in the wiring device. [Diagram 5] FIG. 5 is a perspective view of a body of the wiring device. [Figure 6] FIG. 6 is a side cross-sectional view of the wiring accessory, showing a state in which a tip of an antistatic rib is housed in a housing groove. [Figure 7] FIG. 7 is a top cross-sectional view of the wiring device, showing a state in which a first pressing rib is in contact with a first board. [Figure 8] FIG. 8 is a side cross-sectional view of the wiring device, showing a state in which a first pressing rib is in contact with a first board. [Figure 9]FIG. 9 is a side cross-sectional view of the wiring device, showing a state in which the second board is guided by a guide portion. [Figure 10] FIG. 10 is a perspective view showing a state in which the second board and the third board are attached to the body in the wiring device. [Figure 11] FIG. 11 is a top cross-sectional view of the wiring device, showing a state in which the second pressing rib is in contact with the third board. [Figure 12] FIG. 12 is a side cross-sectional view of the wiring device, showing a state in which the second pressing rib is in contact with the third board. [Figure 13] Fig. 13A is a side view of a first module included in the wiring device, and Fig. 13B is a schematic diagram of a capacitor included in the first module. [Figure 14] FIG. 14 is a front cross-sectional view showing a positional relationship between an identification IC and a coil in the wiring device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] (Embodiment) Hereinafter, a wiring device 100 according to the present embodiment will be described with reference to FIGS.

[0009] However, the embodiment and modified examples described below are merely examples of the present disclosure, and the present disclosure is not limited to the following embodiment and modified examples. Various modifications other than the following embodiment and modified examples are possible according to the design, etc., as long as they do not deviate from the technical idea of ​​the present disclosure.

[0010] In addition, all of the drawings described in the following embodiments are schematic drawings, and the ratios of size and thickness of each component in each drawing do not necessarily reflect the actual dimensional ratios.

[0011] (1) Overview First, an overview of a wiring device 100 according to the present embodiment will be described with reference to FIGS. 1 to 3. FIG.

[0012] The wiring fixture 100 according to the present embodiment is applied to, for example, a USB outlet for connecting a USB plug 301 provided at the tip of a USB (Universal Serial Bus) cable 300. The wiring fixture 100 supplies power to an electric device 200 electrically connected via the USB cable 300, or charges a battery included in the electric device 200. The electric device 200 is, for example, a smartphone, a digital audio player, or a notebook computer. In the present embodiment, as an example, the electric device 200 is a smartphone, and the wiring fixture 100 charges a battery included in the smartphone. The wiring fixture 100 according to the present embodiment is, for example, an indoor wiring fixture attached to a wall of a building. The building in which the wiring fixture 100 is installed is, for example, a detached house, each dwelling unit of an apartment building, an office, a store, or a care facility.

[0013] The wiring device 100 is attached to an installation surface (here, a wall surface of a building) in a state in which an electric wire is electrically connected to the wiring device 100. In the wiring device 100, the USB plug 301 of the USB cable 300 is inserted into an insertion hole 121a formed in a top wall (front surface) 129 of a cover 12 described later, whereby the USB plug 301 is electrically connected, and power can be supplied from the wiring device 100 to the electrical device 200. Here, the wiring device 100 is a recessed wiring device and is attached to the installation surface using a mounting frame. More specifically, the mounting frame to which the wiring device 100 is attached is fixed to, for example, a recessed box, so that the wiring device 100 is attached to the installation surface. The recessed box referred to here is a box-shaped member with an open front surface, and is installed in a wall so that the front surface is exposed forward from a mounting hole formed in the installation surface.

[0014] 1 to 3, the wiring device 100 according to the present embodiment includes a first inner terminal (inner terminal) 22, a first board 21, a second board 31, and an identification IC 24 (see FIG. 3). A plug-in first outer terminal (outer terminal) 301 is connected to the first inner terminal 22. The first outer terminal 301 is, for example, a USB plug 301 provided at the tip of a USB cable 300. The first inner terminal 22 is, for example, a USB socket 22 into which the USB plug 301 is detachably plugged.

[0015] The first board 21 has a first surface 211 and a second surface 212 opposite to the first surface 211. A first inner terminal 22 is mounted on the first surface 211 of the first board 21. The second board 31 is electrically connected to the first board 21, and has a power conversion circuit 32 (see FIG. 3) mounted thereon that converts the first power into the second power. The first power is, for example, AC power. The second power is, for example, DC power. That is, in the wiring device 100 according to the present embodiment, the power conversion circuit 32 includes an AC / DC converter that converts the AC power into DC power.

[0016] The identification IC 24 is mounted on the second surface 212 of the first substrate 21. That is, the identification IC 24 is mounted on the second surface 212 opposite to the first surface 211 on which the first inner terminal 22 is mounted. The identification IC 24 identifies the charging specifications of the electric device 200 electrically connected via the first inner terminal 22 and the first outer terminal 301. The "charging specifications" in the present disclosure refer to a method of charging the battery included in the electric device 200, and in the present embodiment, as an example, the identification IC 24 identifies whether or not the battery can be rapidly charged. Also, the "rapid charging" in the present disclosure refers to charging that allows charging in a shorter time. For example, the wiring device 100 normally charges the battery at DC 5V and 1A (5W), but if the electric device 200 supports rapid charging, the wiring device 100 charges the battery at DC 5V and 2.4A (12W). This makes it possible to charge the battery in a shorter time than usual.

[0017] In the wiring device 100 according to the present embodiment, as described above, the identification IC 24 is mounted on the second surface 212 of the first substrate 21. Therefore, it is possible to improve the degree of freedom in arranging electronic components on the first surface 211 compared to a case in which the identification IC 24 is mounted on the first surface 211 of the first substrate 21. In other words, the wiring device 100 according to the present embodiment makes it possible to improve the degree of freedom in arranging electronic components on the first substrate 21.

[0018] (2) Details Next, details of the wiring device 100 according to the present embodiment will be described with reference to FIGS.

[0019] 1 to 3, a wiring device 100 according to the present embodiment includes a housing 1, a first module 2, a second module 3, and a third module 4. The housing 1 accommodates a first board 21 of the first module 2, a second board 31 of the second module 3, and a third board 41 of the third module 4, as will be described later.

[0020] (2.1) Housing As shown in Figs. 4 and 5, the housing 1 includes a body 11 and a cover 12. The body 11 and the cover 12 are formed of, for example, PBT (polybutylene terephthalate) resin. The body 11 is box-shaped with an opening 110. The opening 110 has a rectangular shape when viewed from the insertion direction D1 of the first outer terminal 301 into the first inner terminal 22. The cover 12 is detachably attached to the body 11 so as to close the opening 110 of the body 11. The body 11 and the cover 12 form an accommodation space 10 in the housing 1 by attaching the cover 12 to the body 11.

[0021] The body 11 includes a base 13 , a first support portion 111 , a second support portion 112 , a first reinforcing rib 16 , and a second reinforcing rib 17 .

[0022] 4 and 5, the base 13 has a first body side wall 131, a second body side wall 132, a first body connecting wall 133, and a second body connecting wall 134. The base 13 is formed into a rectangular parallelepiped shape having an opening 110 by the first body side wall 131, the second body side wall 132, the first body connecting wall 133, and the second body connecting wall 134. The base 13 further has two first joint edges 135 that contact the cover 12.

[0023] As shown in Figs. 4 and 5, the first support portion 111 includes a support structure 20. The support structure 20 includes a pair of protruding walls 14, 15. The pair of protruding walls 14, 15 are arranged at an interval from each other in a direction intersecting the insertion direction D1 (for example, a direction along the first body side wall 131 of the base 13). Each of the pair of protruding walls 14, 15 protrudes from the base 13 toward the cover 12 side along the insertion direction D1. The pair of protruding walls 14, 15 support a first board 21 of the first module 2 described later. That is, the body 11 has a support structure 20 that protrudes along the insertion direction D1 and supports the first board 21 in the insertion direction D1. In addition, the support structure 20 includes a pair of protruding walls 14, 15 that face each other in a direction intersecting the insertion direction D1, as described above.

[0024] More specifically, each of the pair of protruding wall portions 14, 15 is located inside the first joint edge 135 in the direction in which the pair of protruding wall portions 14, 15 are aligned (a direction intersecting with the insertion direction D1). One of the pair of protruding wall portions 14, 15, the protruding wall portion 14, is connected to the first body connecting wall 133, and the other protruding wall portion 15 is connected to the second body connecting wall 134.

[0025] The shape of the portion (hereinafter also referred to as the "protruding portion") protruding from the first joint edge 135 in each of the pair of protruding walls 14, 15 is trapezoidal when viewed from the direction in which the pair of protruding walls 14, 15 are arranged. The shape of the protruding portion is a trapezoid with the lower base longer than the upper base, when the edge closer to the first joint edge 135 in the insertion direction D1 is the lower base and the edge farther from the first joint edge 135 is the upper base. Each of the pair of protruding walls 14, 15 has an engagement groove 18. The engagement groove 18 is rectangular when viewed from the direction in which the pair of protruding walls 14, 15 are arranged, and is formed on the edge of each of the protruding walls 14, 15 on the cover 12 side. The pair of engagement grooves 18 position the first board 21 with respect to the body 11 by inserting a pair of protruding pieces 213 of the first board 21 described later. That is, the pair of engagement grooves 18 function as a positioning portion (hereinafter also referred to as the "positioning portion 18") that positions the first board 21 with respect to the body 11. In short, the pair of protruding walls 14, 15 have positioning portions 18 that position the first substrate 21 with respect to the pair of protruding walls 14, 15.

[0026] The protruding portion of the protruding wall portion 15 is formed as an isosceles trapezoid with two base angles on both sides of the lower base being equal, and the two legs connecting the upper base and the lower base are inclined obliquely so as to approach the first body side wall 131 and the second body side wall 132 as they approach the lower base. Meanwhile, the protruding wall portion 14 has a guide portion 141 on the side edge on the first body side wall 131 side. The guide portion 141 is formed along the insertion direction D1. The side edge on the second body side wall 132 side of the protruding wall portion 14 is formed in the same shape as the opposing portion of the protruding wall portion 15 in the direction in which the pair of protruding walls 14, 15 are aligned, and the corresponding legs are inclined obliquely so as to approach the second body side wall 132 as they approach the lower base.

[0027] The first reinforcing rib 16 has a function of increasing the structural strength of the protruding wall portion 14. The second reinforcing rib 17 has a function of increasing the structural strength of the protruding wall portion 15. The first reinforcing rib 16 protrudes from a first joint edge 135 of the first body connecting wall 133 towards the cover 12 side and is connected to the protruding wall portion 14. The second reinforcing rib 17 protrudes from a first joint edge 135 of the second body connecting wall 134 towards the cover 12 side and is connected to the protruding wall portion 15.

[0028] As shown in FIG. 4 and FIG. 5, the second support portion 112 has a partition wall 136. The partition wall 136 is provided in the accommodation space 10. The partition wall 136 is between the first body connecting wall 133 and the second body connecting wall 134, and both ends of the partition wall 136 are connected to the first body side wall 131 and the second body side wall 132. By being partitioned by the partition wall 136, two storage sections 137, 138 are formed in the accommodation space 10. The storage section 137 is adjacent to the first body connecting wall 133 and is a storage section for storing the second module 3. That is, the storage section 137 functions as a second storage section (hereinafter also referred to as "second storage section 137") that stores the second board 31 of the second module 3. In short, the body 11 has the second storage section 137 that stores the second board 31. The storage section 138 is adjacent to the second body connecting wall 134 and is a storage section for storing the third module 4.

[0029] As shown in Fig. 4, the first body connecting wall 133 and the partition wall 136 are formed with a pair of positioning grooves 139 facing each other in the storage section 137. Each of the pair of positioning grooves 139 is formed along the insertion direction D1. In the wiring device 100 according to the present embodiment, the second board 31 is held in the body 11 by inserting both ends of the second board 31 in the direction in which the pair of positioning grooves 139 are aligned into the pair of positioning grooves 139. That is, the body 11 has a holding groove (positioning groove 139) provided in at least one end in a direction intersecting the insertion direction D1 and intersecting the normal direction of the second board 31.

[0030] As shown in Figures 3 and 4, the cover 12 has a cover body 121, a plurality of (four in this embodiment) first pressing ribs 122, a plurality of (four in this embodiment) second pressing ribs 123, a plurality of (two in this embodiment) anti-static ribs 124, and a pair of assembly pieces 125.

[0031] As shown in Figs. 3 and 4, the cover body 121 has a first cover side wall 126, a second cover side wall 127, two cover connecting walls 128, and a top wall 129. The first cover side wall 126 corresponds to the first body side wall 131. The second cover side wall 127 corresponds to the second body side wall 132. The first cover side wall 126 and the second cover side wall 127 are arranged with a gap in a direction intersecting with the insertion direction D1. The two cover connecting walls 128 correspond to the first body connecting wall 133 and the second body connecting wall 134. The two cover connecting walls 128 are adjacent to the first cover side wall 126 and the second cover side wall 127 so as to form an enclosing wall together with the first cover side wall 126 and the second cover side wall 127. The top wall 129 is adjacent to one ends of the first cover side wall 126, the second cover side wall 127, and the two cover connecting walls 128 in the insertion direction D1. The top wall 129 has an insertion hole 121a formed in a rectangular shape when viewed from the insertion direction D1. The cover main body 121 is formed by the first cover side wall 126, the second cover side wall 127, the two cover connecting walls 128, and the top wall 129 into a rectangular parallelepiped shape with one side open.

[0032] As shown in Figs. 3 and 4, the cover body 121 further has two second joint edges 121b. When the wiring device 100 is in an assembled state, each of the two second joint edges 121b contacts a corresponding one of the two first joint edges 135 of the base 13. Each of the two second joint edges 121b has an insertion groove 121c. The shape of each insertion groove 121c is rectangular when viewed from the direction in which the two cover connecting walls 128 are arranged. The first reinforcing rib 16 is inserted into one of the two insertion grooves 121c, and the second reinforcing rib 17 is inserted into the other insertion groove 121c. The wiring device 100 of this embodiment is equipped with a first reinforcing rib 16, a second reinforcing rib 17, and two insertion grooves 121c into which the ribs are inserted, thereby making it possible to improve the structural strength of the pair of protruding wall portions 14, 15 and also to improve the appearance of the housing 1.

[0033] The first pressing ribs 122 and the second pressing ribs 123 are formed on the inner surfaces of the first cover side wall 126 and the second cover side wall 127, as shown in Fig. 4. Furthermore, each of the second pressing ribs 123 protrudes toward the body 11 along the insertion direction D1, with a tip portion located closer to the body 11 than the second joint edge 121b. When the wiring device 100 is in an assembled state, the second pressing ribs 123 contact a third substrate 41 of a third module 4, which will be described later (see Fig. 11).

[0034] More specifically, each of the first pressing ribs 122 and the second pressing ribs 123 has one end in the insertion direction D1 connected to the top wall 129 of the cover body 121, and is formed in a rod shape extending along the insertion direction D1. Furthermore, as described above, the tip of the second pressing ribs 123 protrudes toward the body 11 side beyond the second joint edge 121b of the cover body 121.

[0035] The antistatic ribs 124 are formed on the inner surface of the first cover side wall 126 as shown in Fig. 4. One end of each of the antistatic ribs 124 in the insertion direction D1 is connected to the top wall 129 of the cover main body 121, and protrudes toward the body 11 along the insertion direction D1. A tip of each of the antistatic ribs 124 protrudes toward the body 11 beyond the second joint edge 121b of the cover main body 121. Each of the antistatic ribs 124 is received in a receiving groove 131a provided in a first body side wall 131 of the body 11 when the wiring device 100 is assembled as shown in Fig. 6.

[0036] In the wiring device 100 according to the present embodiment, the antistatic rib 124 and the housing groove 131a are provided, so that the highest part of the first body side wall 131 and the lowest part of the antistatic rib 124 are not flush with each other at the joint between the first body side wall 131 and the first cover side wall 126. This makes it difficult for static electricity to be transmitted between the first body side wall 131 and the first cover side wall 126. As a result, it is possible to reduce the effect of static electricity on electronic components in the wiring device 100. In addition, when assembling the wiring device 100, it is necessary to align the position of the antistatic rib 124 with the position of the housing groove 131a, and a mistake-proofing effect can also be expected.

[0037] 3 and 4, the pair of assembly pieces 125 protrude toward the body 11 from the body 11-side edges of the first cover side wall 126 and the second cover side wall 127. Each of the pair of assembly pieces 125 has a rectangular shape when viewed from the direction in which the first cover side wall 126 and the second cover side wall 127 are aligned. Each of the pair of assembly pieces 125 has two assembly holes 125a.

[0038] 3 and 4, each of the first body side wall 131 and the second body side wall 132 of the base 13 is provided with two protrusions 19 that fit into two assembly holes 125a provided in a corresponding one of the pair of assembly pieces 125. When the wiring device 100 is in an assembled state, the two corresponding protrusions 19 fit into the two assembly holes 125a of each assembly piece 125, thereby making it possible to integrally join the cover 12 and the body 11 (see FIG. 1).

[0039] (2.2) First module As shown in FIG. 2 and FIG. 3, the first module 2 includes a first substrate 21 and a first inner terminal 22. The first substrate 21 is, for example, a printed wiring board made of glass-epoxy resin. The shape of the first substrate 21 is a rectangle that is long in one direction when viewed from the insertion direction D1. The first substrate 21 has a first surface 211 and a second surface 212 opposite to the first surface 211. The first substrate 21 is accommodated in the accommodation space 10 so that the normal direction of the first substrate 21 (the direction in which the first surface 211 and the second surface 212 are aligned) is along the insertion direction D1. That is, the normal direction of the first substrate 21 is a direction along the insertion direction D1 of the first outer terminal 301 into the first inner terminal 22. The first substrate 21 is supported by a first support portion 111 (a pair of protruding walls 14, 15). Therefore, when the wiring device 100 is in an assembled state, the first board 21 is stored within the cover body 121 of the cover 12. That is, the cover 12 has a first storage section 120 (see FIG. 4) that stores the first board 21.

[0040] As described above, the first inner terminal 22 is, for example, a USB socket 22. The first inner terminal 22 is mounted on the first surface 211 of the first board 21. When the wiring device 100 is in an assembled state, the first inner terminal 22 faces the insertion hole 121a of the cover 12. Therefore, the first outer terminal 301 of the USB cable 300 can be connected to the first inner terminal 22 through the insertion hole 121a.

[0041] The first board 21 further has a pair of protruding pieces 213. The pair of protruding pieces 213 are provided on both ends of the first board 21 in the longitudinal direction. The first board 21 is positioned in a plane perpendicular to the insertion direction D1 by the pair of protruding pieces 213 fitting into a pair of engagement grooves 18 provided in the pair of protruding walls 14, 15. In addition, in a state in which the wiring device 100 is assembled, a plurality of first pressing ribs 122 provided on the cover 12 contact the first surface 211 of the first board 21 (see FIGS. 7 and 8), and the first support portion 111 (the pair of protruding walls 14, 15) and the plurality of pressing ribs 122 position the first board 21 in the insertion direction D1.

[0042] 7, first substrate 21 is provided with a plurality of recesses 214. When wiring device 100 is assembled, a plurality of second pressing ribs 123 provided on cover 12 are inserted into the plurality of recesses 214. As a result, first substrate 21 is positioned within a plane perpendicular to insertion direction D1.

[0043] 2 and 3, a plurality of capacitors 23 are mounted on the first surface 211 of the first substrate 21. Furthermore, an identification IC 24 is mounted on the second surface 212 of the first substrate 21. That is, the identification IC 24 is mounted on the second surface 212 opposite to the first surface 211 on which the first inner terminal 22 is mounted. The identification IC 24 identifies the charging specification of the electric device 200 electrically connected via the first inner terminal 22 and the first outer terminal 301. More specifically, the identification IC 24 acquires identification information from the electric device 200 electrically connected via the USB cable 300, and identifies whether or not the electric device 200 is a device that can be quickly charged based on the identification information. In this embodiment, the identification information includes information indicating whether or not the electric device 200 is a device that can be quickly charged. If the electric device 200 is a device that can be quickly charged, the identification IC 24 charges the battery provided in the electric device 200 at, for example, DC 5V, 2.4A (12W). Furthermore, if the electric device 200 does not support quick charging, the identification IC 24 charges the battery included in the electric device 200 at, for example, DC 5 V, 1 A (5 W). Note that the positional relationship between the first inner terminal 22 and the multiple capacitors 23 mounted on the first surface 211 of the first substrate 21 will be described in the section "(4) Positional Relationship Between the First Inner Terminal and the Capacitors".

[0044] (2.3) Second module As shown in FIG. 3, the second module 3 includes a second substrate 31. The second substrate 31 is a printed wiring board made of, for example, glass-epoxy resin, similar to the first substrate 21. The second substrate 31 includes a first portion 311 and a second portion 312. The shape of the first portion 311 is a rectangle that is long in the insertion direction D1 when viewed from a direction intersecting the insertion direction D1 (the normal direction of the second substrate 31). The shape of the second portion 312 is a rectangle that is long along the width direction of the first portion 311 when viewed from the normal direction of the second substrate 31. Therefore, the shape of the second substrate 31 is an L-shape when viewed from the normal direction of the second substrate 31.

[0045] The second board 31 is electrically connected to the first board 21 of the first module 2. More specifically, the second board 31 is electrically connected to the first board 21 via a connection terminal (not shown). The second board 31 is accommodated in the accommodation space 10 so that the normal direction of the second board 31 is perpendicular (intersects) with the normal direction of the first board 21. That is, the normal direction of the second board 31 is a direction intersecting with the insertion direction D1. The second board 31 is accommodated in the accommodation space 10 by guiding the first portion 311 into the base 13 along the guide portion 141. When the second board 31 is accommodated in the accommodation space 10, the first portion 311 is located in the accommodation portion 137, and the second portion 312 is located in the accommodation portion 138. When the second board 31 is accommodated in the accommodation space 10, the second board 31 is disposed along the first body side wall 131 of the base 13.

[0046] In the present disclosure, "orthogonal" does not only mean a state where they intersect at exactly 90 degrees, but also means a state where they are approximately orthogonal within a certain range of error. In other words, the angle between the first substrate 21 and the second substrate 31 falls within a certain range of error (10 degrees or less, as an example) from 90 degrees. As an example, in this embodiment, the angle between the first substrate 21 and the second substrate 31 is 90 degrees.

[0047] The second substrate 31 is positioned with respect to the base 13 by inserting edges of the first portion 311 of the second substrate 31 into positioning grooves 139 provided in the first body connecting wall 133 of the base 13 and into positioning grooves 139 provided in the partition wall 136. Here, the width of each of the pair of positioning grooves 139 is greater than the thickness of the second substrate 31 so that the second substrate 31 can be easily inserted into the pair of positioning grooves 139 (see FIG. 9).

[0048] Further, a power conversion circuit 32 that converts a first power into a second power is mounted on the first portion 311 of the second substrate 31. In this embodiment, the power conversion circuit 32 includes an AC / DC converter and converts AC power (first power) supplied via a cable 400 (see FIG. 1) into DC power (second power). The power conversion circuit 32 includes a plurality of capacitors 321 and a coil 322. The plurality of capacitors 321 and the coil 322 are mounted on the first portion 311 of the second substrate 31 such that the coil 322 is on the cover 12 side and the plurality of capacitors 321 are on the body 11 side in the insertion direction D1. The positional relationship between the identification IC 24 and the coil 322 will be described in the section "(5) Positional Relationship Between the Identification IC and the Coil."

[0049] (2.4) Third module As shown in FIG. 3, the third module 4 includes a third substrate 41 and a pair of second inner terminals 42. The third substrate 41 is a printed wiring board made of, for example, glass-epoxy resin, similar to the first substrate 21. The shape of the third substrate 41 is rectangular when viewed from the insertion direction D1. The third substrate 41 is electrically connected to the second substrate 31 of the second module 3. More specifically, the third substrate 41 is electrically connected to the second substrate 31 via a connection member 6. The connection member 6 includes a pair of lead wires 61, 62. That is, the connection member 6 is a member that is conductive and flexible. In short, the second substrate 31 and the third substrate 41 are electrically connected to each other via the connection member 6 that is conductive and flexible.

[0050] As described above, the first substrate 21 and the second substrate 31 are connected by a connection terminal (not shown). Therefore, there is a possibility that the stress applied to the first substrate 21 when connecting the first outer terminal 301 to the first inner terminal 22 is transmitted to the second substrate 31. On the other hand, the second substrate 31 and the third substrate 41 are connected by the flexible connection member 6, and the stress transmitted to the second substrate 31 can be absorbed by the deformation of the connection member 6, so that the effect of the stress on the third substrate 41 can be reduced.

[0051] The third substrate 41 is supported by the partition wall 136 of the second support portion 112, and is stored in the storage portion 138 of the base 13. The normal direction of the third substrate 41 is a direction along the insertion direction D1. In other words, the normal direction of the third substrate 41 is the same as the normal direction of the first substrate 21.

[0052] As shown in Fig. 10, the third substrate 41 is supported from below by the second support portion 112. Moreover, as shown in Fig. 11 and Fig. 12, the third substrate 41 is pressed from above by a plurality of second pressing ribs 123. In this manner, the third substrate 41 is positioned in the insertion direction D1 by the second support portion 112 and the plurality of second pressing ribs 123.

[0053] In this embodiment, as shown in Figure 10, the second portion 312 of the second substrate 31 of the second module 3 extends beyond the partition wall 136 toward the third substrate 41, and is positioned between the first substrate 21 and the third substrate 41 in the insertion direction D1.

[0054] The pair of second inner terminals 42 are terminals different from the first inner terminal 22. The pair of second inner terminals 42 are mounted on the third substrate 41. Each of the pair of second inner terminals 42 is, for example, a terminal fitting formed into a U-shape by bending a metal plate made of a copper alloy. The pair of second inner terminals 42 are configured to be connected to a pair of second outer terminals 401. The pair of second outer terminals 401 are terminals different from the first outer terminal 301. Each of the pair of second outer terminals 401 is, for example, a core wire of a cable 400. In the wiring device 100 according to the present embodiment, the second inner terminal 42 and the second outer terminal 401 can be connected to each other by inserting the corresponding second outer terminal 401 of the pair of second outer terminals 401 into each of the pair of second inner terminals 42.

[0055] The third module 4 further includes a release button 43 (see FIG. 14). The release button 43 is a button for releasing the connection between the pair of second inner terminals 42 and the pair of second outer terminals 401. In other words, by operating the release button 43 in a state in which the pair of second inner terminals 42 and the pair of second outer terminals 401 are connected, it becomes possible to remove the pair of second outer terminals 401 from the pair of second inner terminals 42.

[0056] (2.5) Insulating materials The wiring device 100 according to the present embodiment further includes a plurality of insulating members 5, 7, and 8, as shown in FIG.

[0057] The insulating member 5 is, for example, an insulating sheet made of polycarbonate. The insulating member 5 has an L-shape when viewed from a direction intersecting with the insertion direction D1. As shown in FIG. 13A, the insulating member 5 includes a first portion 51 and a second portion 52. The first portion 51 is disposed so as to be perpendicular to the first surface 211 of the first substrate 21. The first portion 51 is disposed between the plurality of electronic components (including the first inner terminals 22) mounted on the first surface 211 of the first substrate 21 and the first cover side wall 126 of the cover 12 in an assembled state of the wiring device 100. The first portion 51 suppresses static electricity, lightning surges, and the like from the outside to the plurality of electronic components. The second portion 52 is disposed so as to be parallel to the second surface 212 of the first substrate 21. Further, in a state in which the wiring device 100 is assembled, the second portion 52 is disposed between the identification IC 24 mounted on the second surface 212 of the first substrate 21 and the coil 322 mounted on the second substrate 31 (see FIG. 14 ). The second portion 52 suppresses (reduces) noise from the coil 322 to the identification IC 24.

[0058] The insulating member 7 is an insulating sheet made of, for example, polycarbonate, similar to the insulating member 5. The insulating member 7 has a U-shape when viewed from a direction intersecting with the insertion direction D1. The insulating member 7 is disposed between the first board 21 and the third board 41 when the wiring device 100 is in an assembled state. The insulating member 7 suppresses static electricity, lightning surges, and the like from the outside to the third board 41.

[0059] The insulating member 8 is an insulating sheet made of, for example, polycarbonate, similar to the insulating member 5. The insulating member 8 has a rectangular shape that is long in the insertion direction D1 when viewed from a direction intersecting the insertion direction D1 (the normal direction of the first board 21). The insulating member 8 is disposed between the second board 31 and the first body side wall 131 of the body 11 when the wiring device 100 is in an assembled state. The insulating member 8 suppresses static electricity, lightning surges, and the like from the outside to the second board 31.

[0060] (3) How to assemble the wiring device Next, a method of assembling the wiring device 100 according to this embodiment will be described.

[0061] First, the first substrate 21 of the first module 2 and the second substrate 31 of the second module 3 are electrically connected by a connection terminal. Furthermore, the second substrate 31 of the second module 3 and the third substrate 41 of the third module 4 are electrically connected by a connection member 6. In this case, the second substrate 31 and the third substrate 41 may be connected before or after the first substrate 21 and the second substrate 31 are connected.

[0062] Next, the first module 2, the second module 3, and the third module 4 are accommodated in the accommodation space 10. At this time, the second substrate 31 of the second module 3 is guided by the guide portion 141 provided on the side edge of the protruding wall portion 14, so that the second module 3 can be easily accommodated in the body 11. Furthermore, since the first module 2 and the third module 4 are connected to the second module 3, the first module 2 and the third module 4 can also be easily accommodated in the body 11.

[0063] Finally, the cover 12 is attached to the body 11 so as to close the opening 110 of the body 11 in which the first module 2, the second module 3, and the third module 4 are housed. At this time, the two assembly holes 125a provided in each assembly piece 125 of the cover 12 fit into the two corresponding protrusions 19 of the body 11. This completes the assembly of the wiring device 100 according to the present embodiment.

[0064] (4) Positional relationship between the first inner terminal and the capacitor Next, the positional relationship between the first inner terminal 22 and the capacitor 23 on the first surface 211 of the first substrate 21 will be described with reference to FIGS. 13A and 13B.

[0065] As described above, the first inner terminal 22 is mounted on the first surface 211 of the first substrate 21. The length of the first inner terminal 22 in the insertion direction D1 is L2 as shown in FIG. 13A. On the other hand, the length of the capacitor 23 in the one direction is L1 as shown in FIG. 13B. Here, the length L1 of the capacitor 23 in the one direction is the sum of the length of the main body portion of the capacitor 23 in a state in which the capacitor 23 is mounted on the first surface 211 of the first substrate 21 and the length of the terminal portion exposed from the first surface 211 (see FIG. 13B). That is, the length L1 of the capacitor 23 in the one direction is longer than the length L2 of the first inner terminal 22 in the insertion direction D1. Therefore, when capacitor 23 is mounted on first surface 211 of first substrate 21 so that one direction of capacitor 23 is parallel to the normal direction of first substrate 21, the height of capacitor 23 from first surface 211 becomes greater than height H2 (see FIG. 13A) of first inner terminal 22 from first surface 211. As a result, wiring device 100 may become larger in size in insertion direction D1. Here, the one direction is the longitudinal direction of capacitor 23 (the left-right direction in FIG. 13B).

[0066] In contrast, in the wiring device 100 according to the present embodiment, the capacitor 23 is mounted on the first surface 211 of the first substrate 21 such that one direction of the capacitor 23 is aligned with the first surface 211 of the first substrate 21, as shown in Fig. 13A. As a result, the height H1 of the capacitor 23 from the first surface 211 is lower than the height H2 of the first inner terminal 22 from the first surface 211, as shown in Fig. 13A. As a result, it is possible to prevent the wiring device 100 from becoming larger in the plug-in direction D1. Here, the first inner terminal 22 is mounted on the first surface 211 of the first substrate 21 such that the plug-in direction D1 intersects with one direction (the left-right direction in Fig. 13A), as shown in Fig. 13A.

[0067] (5) Positional relationship between the identification IC and the coil Next, the positional relationship between the identification IC 24 and the coil 322 will be described with reference to FIG.

[0068] As described above, the identification IC 24 is mounted on the second surface 212 of the first substrate 21. As described above, the coil 322 is mounted on one surface of the first portion 311 of the second substrate 31 (the surface facing the second body side wall 132 of the body 11). Furthermore, the normal direction of the first substrate 21 is a direction along the insertion direction D1, and the normal direction of the second substrate 31 is a direction intersecting the insertion direction D1 (for example, a direction along the first body connecting wall 133 of the base 13). That is, the first substrate 21 and the second substrate 31 are arranged such that the normal direction of the first substrate 21 and the normal direction of the second substrate 31 intersect, as shown in FIG. 14.

[0069] As shown in Fig. 14, the coil 322 is disposed on the second surface 212 side of the first board 21 in the plugging direction D1. In addition, in the wiring device 100 according to the present embodiment, the identification IC 24 and the coil 322 are arranged side by side in the plugging direction D1 as shown in Fig. 14. Therefore, noise generated in the coil 322 may affect the identification IC 24. However, in the present embodiment, the insulating member 5 is provided between the identification IC 24 and the coil 322, so that the influence of the noise on the identification IC 24 can be reduced. That is, the wiring device 100 according to the present embodiment further includes the insulating member 5. The insulating member 5 is disposed between the identification IC 24 and the coil 322 in the plugging direction D1, and electrically insulates the identification IC 24 from the coil 322.

[0070] (6) Effects As described above, the wiring device 100 according to the present embodiment includes the first inner terminal (inner terminal) 22, the first board 21, the second board 31, and the identification IC 24. The first inner terminal 22 is connected to a plug-in first outer terminal (outer terminal) 301. The first board 21 has a first surface 211 and a second surface 212 opposite to the first surface 211, and the first inner terminal 22 is mounted on the first surface 211. The second board 31 is electrically connected to the first board 21, and has a power conversion circuit 32 mounted thereon that converts a first power into a second power. The identification IC 24 is mounted on the second surface 212, and identifies the charging specification of the electric device 200 that is electrically connected via the first inner terminal 22 and the first outer terminal 301.

[0071] In the wiring fixture 100 according to the present embodiment, the identification IC 24 is mounted on the second surface 212 of the first substrate 21. This allows greater freedom in arranging electronic components on the first surface 211 compared to when the identification IC 24 is mounted on the first surface 211 of the first substrate 21. This allows the capacitor 23 to be mounted laterally (with the longitudinal direction (one direction) of the capacitor 23 oriented along the first surface 211) on the first substrate 21 as shown in Figs. 2 and 3, making it possible to reduce the height of the capacitor 23.

[0072] Furthermore, when a tall electronic component such as capacitor 23 is mounted on second surface 212 of first substrate 21, it is necessary to increase the distance between first substrate 21 and second substrate 31 in insertion direction D1 to avoid interference between capacitor 23 and coil 322. In contrast, by mounting a tall electronic component such as capacitor 23 on first surface 211 of first substrate 21 as in this embodiment, it is possible to reduce the distance between first substrate 21 and second substrate 31 in insertion direction D1.

[0073] (7) 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 and the like as long as the object of the present disclosure can be achieved. Below, modifications of the above-described embodiment are listed. The modifications described below can be applied in appropriate combination.

[0074] In the above embodiment, four first pressing ribs 122 are provided, but the number of first pressing ribs 122 is not limited to four, and may be one, two or three, or may be five or more. In addition, in the above embodiment, four second pressing ribs 123 are provided, but the number of second pressing ribs 123 is not limited to four, and may be one, two or three, or may be five or more. Furthermore, in the above embodiment, the number of first pressing ribs 122 and the number of second pressing ribs 123 are the same, but they may be different.

[0075] In the above embodiment, two antistatic ribs 124 are provided, but the number of antistatic ribs 124 is not limited to two, and may be one, or three or more.

[0076] In the above embodiment, the first inner terminal 22 is a USB socket, but is not limited thereto. The first inner terminal 22 may be, for example, any one of an HDMI (registered trademark, High-Definition Multimedia Interface) terminal, a VGA (registered trademark, Video Graphics Array) terminal, and a LAN (registered trademark, Local Area Network) terminal.

[0077] In the above embodiment, the positioning groove 139 (holding groove) is provided at both ends in the direction intersecting with the insertion direction D1 and the normal direction of the second substrate 31, but this is not limited thereto. The positioning groove 139 may be provided at least at one end in the direction intersecting with the insertion direction D1 and the normal direction of the second substrate 31.

[0078] In the above-described embodiment, the power conversion circuit 32 includes an AC / DC converter, but the power conversion circuit 32 may include, for example, a DC / DC converter. In this case, the power conversion circuit 32 converts the first DC power supplied via the cable 400 into the second DC power.

[0079] In the above-described embodiment, two capacitors 23 are mounted on the first surface 211 of the first substrate 21, but this is not limited thereto. The number of capacitors 23 mounted on the first surface 211 may be, for example, one, or three or more. That is, the wiring device 100 according to the present embodiment only needs to include at least one capacitor 23 mounted on the first surface 211.

[0080] In the above-described embodiment, the identification IC 24 and the coil 322 are aligned in the insertion direction D1 as shown in Fig. 14, but the identification IC 24 and the coil 322 do not have to be aligned in the insertion direction D1. That is, the identification IC 24 and the coil 322 may be shifted in a direction intersecting the insertion direction D1 (the left-right direction in Fig. 14). Even in this case, by providing an insulating member 5 between the identification IC 24 and the coil 322, it is possible to reduce the effect of noise generated in the coil 322 on the identification IC 24.

[0081] In the above embodiment, the material of the insulating member 5 is polycarbonate, but the material is not limited to this. The material of the insulating member 5 may be other materials as long as they have electrical insulation performance equivalent to that of polycarbonate. The same applies to the insulating members 7 and 8.

[0082] In the above-described embodiment, the identification information from the electric device 200 includes information indicating whether or not the electric device 200 is compatible with quick charging, but the identification information may include, for example, information indicating whether or not the electric device 200 is compatible with the wiring device 100. When the identification information includes information indicating that the electric device 200 is compatible with the wiring device 100, the wiring device 100 supplies power to the electric device 200. On the other hand, when the identification information includes information indicating that the electric device 200 is not compatible with the wiring device 100, the wiring device 100 does not supply power to the electric device 200.

[0083] In the above-described embodiment, the connection member 6 includes a pair of lead wires 61, 62, but is not limited thereto. The connection member 6 only needs to be conductive and flexible, and may include, for example, a flexible printed circuit (FPC). Even in this case, the stress transmitted from the first substrate 21 to the second substrate 31 can be absorbed by the flexible printed circuit, and therefore, it is possible to suppress the transmission of the stress to the third substrate 41.

[0084] (Aspect) The following aspects are disclosed from the above-described embodiment and modified examples.

[0085] The wiring device (100) according to the first aspect includes an inner terminal (22), a first board (21), a second board (31), and an identification IC (24). A plug-in type outer terminal (301) is connected to the inner terminal (22). The first board (21) has a first surface (211) and a second surface (212) opposite to the first surface (211), and the inner terminal (22) is mounted on the first surface (211). The second board (31) is electrically connected to the first board (21), and has a power conversion circuit (32) that converts a first power into a second power mounted thereon. The identification IC (24) is mounted on the second surface (212) and identifies the charging specification of an electric device (200) electrically connected via the inner terminal (22) and the outer terminal (301).

[0086] According to this embodiment, it is possible to improve the degree of freedom in arranging electronic components on the first surface (211) compared to the case where the identification IC (24) is mounted on the first surface (211) of the first substrate (21).

[0087] The wiring device (100) according to the second aspect is the same as the wiring device (100) according to the first aspect, and further includes a housing (1). The housing (1) houses a first board (21) and a second board (31). The housing (1) includes a body (11) and a cover (12). The body (11) is box-shaped with an opening (110). The cover (12) is attached to the body (11) so as to close the opening (110). The body (11) has a support structure (20). The support structure (20) protrudes along an insertion direction (D1) of the outer terminal (301) relative to the inner terminal (22), and supports the first board (21) in the insertion direction (D1).

[0088] According to this embodiment, it becomes possible for the support structure (20) to support the first substrate (21).

[0089] In the wiring device (100) according to the third aspect, in the second aspect, the support structure (20) includes a pair of protruding walls (14, 15) facing each other in a direction intersecting with the insertion direction (D1). The pair of protruding walls (14, 15) have a positioning portion (18). The positioning portion (18) positions the first board (21) with respect to the pair of protruding walls (14, 15).

[0090] According to this embodiment, the first substrate (21) can be positioned with respect to the pair of protruding walls (14, 15) by the positioning portion (18).

[0091] In the wiring device (100) according to the fourth aspect, in the second or third aspect, the body (11) has a retaining groove (139). The retaining groove (139) is provided at least at one end in a direction intersecting the insertion direction (D1) and intersecting the normal direction of the second board (31). The retaining groove (139) is formed along the insertion direction (D1). The second board (31) is retained in the body (11) by inserting at least one end in a direction intersecting the insertion direction (D1) and intersecting the normal direction of the second board (31) into the retaining groove (139).

[0092] According to this embodiment, the second substrate (31) can be held in the body (11) by the holding groove (139).

[0093] In the wiring device (100) according to the fifth aspect, in any one of the second to fourth aspects, the cover (12) has a first storage section (120) that stores the first board (21). The body (11) has a second storage section (137) that stores the second board (31).

[0094] According to this embodiment, it is possible to store the first board (21) and the second board (31) in the housing (1).

[0095] In a wiring device (100) according to a sixth aspect, in any one of the first to fifth aspects, the power conversion circuit (32) includes a coil (322). The coil (322) is disposed on the second surface (212) side of the first board (21) in the insertion direction (D1) of the outer terminal (301) into the inner terminal (22). The wiring device (100) further includes an insulating member (5). The insulating member (5) is disposed between the identification IC (24) and the coil (322) in the insertion direction (D1) and electrically insulates the identification IC (24) from the coil (322).

[0096] According to this embodiment, it is possible to reduce the effect of noise from the coil (322) on the identification IC (24).

[0097] The wiring device (100) according to a seventh aspect is any one of the first to sixth aspects, and further includes a second inner terminal (42) and a third board (41). The second inner terminal (42) is a terminal different from the first inner terminal (22) serving as the inner terminal (22). The second inner terminal (42) is mounted on the third board (41). The second inner terminal (42) is configured to be connected to a second outer terminal (401). The second outer terminal (401) is a terminal different from the first outer terminal (301) serving as the outer terminal (301). The second board (31) and the third board (41) are electrically connected via a connecting member (6) that is conductive and flexible.

[0098] According to this embodiment, it is possible to prevent the stress transmitted from the first substrate (21) to the second substrate (31) when connecting the first inner terminal (22) to the first outer terminal (301) from being transmitted to the third substrate (41).

[0099] The wiring device (100) according to an eighth aspect is any one of the first to seventh aspects, further including at least one capacitor (23). The capacitor (23) is mounted on the first surface (211). A length (L1) of the capacitor (23) in one direction is longer than a length (L2) of the inner terminal (22) in an insertion direction (D1) of the outer terminal (301) into the inner terminal (22). The capacitor (23) is mounted on the first surface (211) such that the one direction is along the first surface (211). The inner terminal (22) is mounted on the first surface (211) such that the insertion direction (D1) intersects with the one direction. A height (H1) of the capacitor (23) from the first surface (211) is smaller than a height (H2) of the inner terminal (22) from the first surface (211).

[0100] According to this embodiment, it is possible to reduce the height of the first substrate (21) compared to a case in which the capacitor (23) is mounted on the first surface (211) so that one direction is parallel to the normal direction of the first surface (211).

[0101] In the wiring device (100) according to the ninth aspect, in any one of the first to eighth aspects, the normal direction of the first board (21) is a direction along the insertion direction (D1) of the outer terminal (301) into the inner terminal (22), and the normal direction of the second board (31) is a direction intersecting the insertion direction (D1).

[0102] According to this aspect, it is possible to achieve a smaller size when viewed in a planar view from the insertion direction (D1) compared to a case in which the second substrate (31) is positioned so that the normal direction of the second substrate (31) is along the insertion direction (D1).

[0103] The configurations according to the second to ninth aspects are not essential for the wiring device (100) and may be omitted as appropriate. [Explanation of symbols]

[0104] 1. Housing 5. Insulating materials 6 Connection parts 11. Body 12 Cover 14,15 Wall section 18 Engagement groove (positioning part) 20 Support structure 21 First board 22 First inner terminal (inner terminal) 23 Capacitor 24 Identification IC 31 Second board 32 Power Conversion Circuit 41 Third board 42 Second inner terminal 100 Wiring devices 110 Opening 120 First storage section 137 Storage section (second storage section) 139 Positioning groove (retaining groove) 200 Electrical Equipment 211 Page 1 212 2nd page 301 1st outer terminal (outer terminal) 322 Coil 401 2nd outer terminal D1 Insertion direction H1,H2 height L1, L2 length

Claims

[Claim 1] an inner terminal to which a plug-in type outer terminal is connected; a first substrate having a first surface and a second surface opposite to the first surface, the inner terminals being mounted on the first surface; a second substrate electrically connected to the first substrate and having a power conversion circuit mounted thereon for converting a first power into a second power; an identification IC mounted on the second surface and configured to identify a charging specification of an electric device electrically connected via the inner terminal and the outer terminal; the power conversion circuit includes a coil; the coil is disposed on the second surface side of the first substrate in a direction in which the outer terminal is inserted into the inner terminal, an insulating member disposed between the identification IC and the coil in the insertion direction and electrically insulating the identification IC and the coil; Wiring equipment.

Images