Wiring apparatus

Abstract

To provide a wiring apparatus capable of improving mounting strength to a mounting frame.SOLUTION: A USB receptacle 10 attached to an attachment frame 110 includes a first substrate 50 to which a power supply line 40 is connected, and a rear surface case 20 for housing the first substrate 50, and a projection 22 for attaching the rear surface case 20 to the attachment frame 110 is formed on the front side of the rear surface case. The back case 20 is made of metal. Further, the back case 20 can be divided into a box body 28 and a lid body 29.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a wiring device that is attached to a mounting frame. [Background technology]

[0002] A wiring device is a device that constitutes electrical equipment. A wiring device is a device for connecting electric wires or electrical devices. Known examples of wiring devices include outlets and switches. Known examples of wiring device outlets include USB (Universal Serial Bus) outlets (see, for example, Patent Document 1). USB outlets supply DC power to electronic devices such as smartphones, tablet devices, and laptop computers.

[0003] The USB outlet described above has a circuit board to which a power line is connected and a housing that houses the circuit board. The USB outlet is attached to the mounting frame by attaching the mounting part of the housing to the mounting frame. The mounting part of the USB outlet is, for example, a resin part that is integrated with the housing.

[0004] In recent years, USB outlets have tended to become smaller and more powerful. As the power output of USB outlets increases, the size of the USB outlet housings tends to increase in both depth and height.

[0005] For example, when installing electrical equipment, the power cord of a USB outlet may be pulled. If the power cord is pulled while the USB outlet is attached to a mounting frame, a vertical component of the tensile force acts on the housing, causing a moment to act on the mounting part, generating stress in the mounting part. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2023-071650 Summary of the Invention [Problem to be solved by the invention]

[0007] As mentioned above, if the depth dimension of the USB outlet housing increases, for example, the moment acting on the mounting part due to the power cord being pulled during installation increases, which increases the stress generated in the mounting part. Furthermore, as mentioned above, in USB outlets made of resin parts in which the housing and mounting part are integrated, the mounting part has low strength, so if the stress generated in the mounting part increases, the mounting part may be damaged.

[0008] On the other hand, if only the mounting part is made of metal to improve its strength, space is required for the fixing structure to fix the mounting part to the housing, which reduces the space inside the housing and makes it impossible to make the USB outlet smaller.

[0009] In view of the above, an object of the present disclosure is to provide a wiring accessory that can improve the mounting strength to a mounting frame. [Means for solving the problem]

[0010] The wiring device according to the present disclosure is a wiring device that is attached to a mounting frame, and is characterized in that it comprises a board to which a power line is connected and a first housing that houses the board, and an attachment portion is formed on one side of the first housing for attaching the first housing to the mounting frame. [Effects of the Invention]

[0011] According to the wiring fixture of the present disclosure, the mounting strength to the mounting frame can be improved. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a perspective view illustrating a wiring fixture according to an embodiment; [Figure 2] 1 is an exploded perspective view showing a wiring fixture according to an embodiment of the present invention; [Figure 3]1 is a perspective view showing a first housing and a second housing according to an embodiment of the present invention; [Figure 4] 10 is another perspective view showing the first housing and the second housing according to the example embodiment. FIG. [Figure 5] FIG. 2 is a perspective view showing a first substrate and a second substrate according to an embodiment. [Figure 6] FIG. 2 is a plan view illustrating a fixing member according to an embodiment. [Figure 7] FIG. 2 is a perspective view showing a mounting frame according to an embodiment; [Figure 8] FIG. 10 is a perspective view showing a mounting frame as another example of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0013] An example of an embodiment of the present disclosure will be described in detail below. In the following description, specific shapes, materials, directions, numerical values, etc. are examples for facilitating understanding of the present disclosure, and can be appropriately changed according to the application, purpose, specifications, etc.

[0014] [Wiring devices] A USB outlet 10 as a wiring device will be described with reference to FIGS. 1 and 2. FIG.

[0015] The USB outlet 10 as a wiring device is a device to which a USB connector (not shown) can be connected, and has a power conversion component that converts AC power to DC power, supplying DC power to electronic devices such as smartphones, tablet devices, laptop computers, etc. The USB outlet 10 can improve the mounting strength to the mounting frame 110, as will be described in detail later.

[0016] As described above, the wiring device of this embodiment is the USB outlet 10. However, the wiring device of the present disclosure may also be a general outlet that outputs 100V or 200V AC power. The USB outlet 10 of this embodiment includes USBs of various generations (transfer speed standards), such as USB 1.0, USB 1.1, USB 2.0, USB 3.0, USB 3.1, USB 3.2, and USB 4.0. The USB terminal shape is not particularly limited and may be any of A terminal, B terminal, C terminal, mini USB, micro USB, etc. Furthermore, the USB charging standard may be USB PD (USB Power Delivery), USB-BC (USB Battery Charging), Quick Charge, etc.

[0017] In the following description of the USB outlet 10, the side on which the surface case 30, which will be described in detail later, is disposed may be referred to as the surface side, and the side opposite the surface side may be referred to as the back side. The surface side may also be referred to as the front side (arrow F in the figure) and the back side as the back side (arrow B in the figure). Furthermore, the direction from the front side to the back side may also be referred to as the front-to-back direction, and directions perpendicular to the front-to-back direction may also be referred to as the left-to-right direction (arrow LR in the figure) and the up-to-down direction (arrow UD in the figure). In the left-to-right direction, the left side when facing the USB outlet 10 is referred to as the left side.

[0018] The USB outlet 10 of this embodiment is installed on a wall (not shown). However, the wiring device of the present disclosure may also be installed on furniture such as a desk, shelf, counter, or bed, or on a vehicle such as an automobile, airplane, or train.

[0019] The USB outlet 10 is attached to a mounting frame 110, which will be described in detail later. The USB outlet 10 is configured to be attached to multiple mounting frames 110, 120, which will be described in detail later. The mounting frame 110 is provided around a construction hole formed in a wall. The front side of the mounting frame 110 may be provided with a frame-shaped decorative plate with an opening formed therein to expose the USB outlet 10.

[0020] In this embodiment, three USB outlets 10 are arranged adjacent to one another in the vertical direction. However, the number and arrangement of the USB outlets 10 are not particularly limited. In addition, other wiring devices such as AC outlets may be arranged adjacent to the USB outlets 10.

[0021] The USB outlet 10 includes a rear case 20 as a first housing that houses a first board 50 to which a power line 40 is connected, a front case 30 as a second housing that is attached to the front side of the rear case 20, heat transfer sheets (front upper heat transfer sheet 71, rear upper heat transfer sheet 72, lower heat transfer sheet 73) as heat transfer members that transfer heat generated by the first board 50 to the rear case 20, insulating sheets (upper insulating sheet 81, lower insulating sheet 82) that insulate the first board 50 from the rear case 20, and a bushing 90 as a fixing member that fixes the power line 40 to the rear case 20, each of which will be described in detail later.

[0022] [Rear case (first housing)] The rear case 20 as the first housing will be described with reference to FIGS.

[0023] As described above, the rear case 20 serving as the first housing houses the first board 50 to which the power line 40 is connected. The rear case 20 is provided on the rear side (rear side) of the USB outlet 10. The rear case 20 is attached to the mounting frame 110 and is positioned rearward of the mounting frame 110. The rear case 20 is formed in a substantially rectangular box shape. The volume of the rear case 20 is sufficiently larger than the volume of the front case 30, for example. However, the relationship between the volumes of the rear case 20 and the front case 30 is not particularly limited.

[0024] The rear case 20 is preferably made of metal, and is preferably formed of a highly rigid metal material, which can improve the strength of the USB outlet 10. The metal from which the rear case 20 is formed is not particularly limited, but aluminum or an aluminum alloy is preferred from the viewpoints of rigidity, thermal conductivity, light weight, processability, etc.

[0025] An attachment portion for attaching the rear case 20 to the attachment frame 110 is formed on the front side (front side) of the rear case 20. The attachment portion can improve the attachment strength of the rear case 20 to the attachment frames 110, 120. A plurality of attachment portions are formed to correspond to the attachment frames 110, 120, respectively. The attachment portion includes a protrusion 22 and a first opening 23.

[0026] The protrusions 22 are mounting portions for mounting to the mounting frame 110. The protrusions 22 are fitted into mounting openings 112 of the mounting frame 110. The protrusions 22 are formed at the front ends of the left and right side surfaces of the rear case 20. Four protrusions 22 are formed, two on each of the left and right sides. The protrusions 22 are formed integrally with the rear case 20. The number and arrangement of the protrusions 22 are not particularly limited.

[0027] As described above, by forming the protrusions 22 as a metal part integral with the rear case 20, the strength of the protrusions 22 can be improved. This improves the attachment strength of the rear case 20 to the mounting frame 110. As a result, the attachment strength of the USB outlet 10 to the mounting frame 110 can be improved.

[0028] The first opening 23 is a mounting portion for mounting to the mounting frame 120. A protrusion 122 of the mounting frame 120 is fitted into the first opening 23. The first opening 23 is formed in a rectangular shape extending in the up-down direction in the first extending portion 24. The first extending portions 24 are formed to extend toward the front side (front side) parallel to the left and right side portions of the rear case 20. The first extending portions 24 are formed integrally with the rear case 20. The first opening 23 is formed so as to contact the front end surface of the rear case 20.

[0029] As described above, by forming the first extension portion 24, in which the first opening 23 is formed, as a metal part integrated with the rear case 20, the strength of the first opening 23 can be improved. This improves the attachment strength of the rear case 20 to the mounting frame 120. As a result, the attachment strength of the USB outlet 10 to the mounting frame 110 can be improved.

[0030] In USB outlet 10, for example, power line 40 may be pulled during installation of electrical equipment. If power line 40 is pulled while USB outlet 10 is fixed to mounting frames 110, 120, a vertical component of the tensile force acts on rear case 20, causing a moment to act on protrusion 22 or first extension portion 24 where first opening 23 is formed, generating stress in protrusion 22 or first extension portion 24.

[0031] Therefore, by making the protrusion 22 or the first extending portion 24 a metal part integrated with the rear case 20, it is possible to improve the attachment strength of the rear case 20 to the mounting frames 110, 120. As a result, it is possible to improve the attachment strength of the USB outlet 10 to the mounting frame 110.

[0032] The rear case 20 is formed with second openings 25 to which the front case 30, which will be described in detail later, is attached by a snap-fit ​​structure. Two second openings 25 are formed in a rectangular shape in the second extension portion 26. The number or arrangement of the second openings 25 is not particularly limited. The second extension portions 26 are formed by extending the top surface (upper surface) and bottom surface (lower surface) of the rear case 20 toward the front side (front side).

[0033] A third opening 27 is formed as an opening on the back surface (rear surface) of rear case 20. A bushing 90 for fixing power line 40 is provided in third opening 27. Power line 40 extends to the outside of rear case 20 through bushing 90.

[0034] The rear case 20 can be separated into a box body 28 as a first member and a lid body 29 as a second member. The box body 28 and the lid body 29 can be separated in the vertical direction. The box body 28 and the lid body 29 are fastened together by screws as fastening members, thereby improving the strength of the rear case 20.

[0035] The pair of first extensions 24 and the lower second extension 26 are formed on the front surface of the box body 28. The third opening 27 is formed on the rear surface of the box body 28. The upper second extension 26 is formed on the front surface of the lid body 29.

[0036] [Surface case (second housing)] The surface case 30 serving as the second housing will be described with reference to FIGS.

[0037] As described above, the front case 30 serving as the second housing is a case attached to the front side of the back case 20. The front case 30 houses the second board 60. Note that a portion of the first board 50 may also be housed in the front case 30. Furthermore, a portion of the second board 60 may extend into the interior of the back case 20. The front case 30 is provided on the front side (front side) of the USB outlet 10. The front case 30 is disposed forward of the mounting frame 110. The front case 30 is formed in the shape of a substantially rectangular box with an opening on the back side (rear surface). The volume of the front case 30 is sufficiently smaller than the volume of the back case 20.

[0038] The surface case 30 is made of resin. The front surface of the surface case 30 is the part that can be touched by the user, and is therefore made of a resin material that does not easily transmit heat from the electronic components mounted on the second substrate 60. The resin that forms the surface case 30 is not particularly limited, but examples include urea resin, melamine resin, and ABS resin.

[0039] The surface case 30 has a connection port 31 formed therein, which is an opening into which a USB connector can be inserted, and the front surface of the surface case 30 serves as the front surface of the USB outlet 10 .

[0040] The front case 30 is formed with claws 32 for attachment to the back case 20 by a snap-fit ​​structure. Two claws 32 are formed on the inside of the top surface (upper surface) and two on the inside of the bottom surface (lower surface) of the front case 30. The number or arrangement of the claws 32 is not particularly limited. In the snap-fit ​​structure between the front case 30 and the back case 20, the elasticity of the material is utilized to fit the rear opening of the front case 30 into the second extension portion 42 of the back case 20, and the claws 32 of the front case 30 are fitted into the second opening 25 of the back case 20.

[0041] [Power line] The power supply line 40 will be described with reference to FIGS.

[0042] The power line 40 is a member that supplies AC power from an external power source to the USB outlet 10. The power line 40 is connected to the first board 50. The power line 40 also extends from the inside of the rear case 20 to the outside of the rear case 20 through a bushing 90. The power line 40 is connected, outside the rear case 20, to a power supply wire (not shown) that is electrically connected to an external power source (for example, a commercial power source). As a result, AC power is supplied to the first board 50 from the external power source via the power line 40.

[0043] [substrate] The substrate will be described with reference to FIG.

[0044] The substrate is configured to include electronic components. The substrate includes a first substrate 50 housed in the rear case 20 and a second substrate 60 housed in the front case 30. A portion of the first substrate 50 may extend into the interior of the front case 30. A portion of the second substrate 60 may extend into the interior of the rear case 20.

[0045] The first substrate 50 is a printed wiring board including electronic components arranged on a printed circuit board 51, and is housed in the rear case 20 so that the surface of the board is perpendicular to the up-down direction. The first substrate 50 includes a power supply circuit for converting AC power supplied from the power line 40 into DC current and outputting it to the terminals 62 of the second substrate 60. The power supply circuit is configured by electrically connecting power conversion components via wiring formed on the front and back of the printed circuit board 51.

[0046] The first substrate 50 includes semiconductor elements (not shown), a transformer 53, a common mode coil 54, an electrolytic capacitor 55, and the like, which are broadly defined as power conversion components that make up the power supply circuit. Examples of the semiconductor elements include switching elements, diodes, and transistors. When the power supply circuit is operating, at least some of the power conversion components generate heat, with the semiconductor elements and the transformer 53 generating particularly large amounts of heat. For this reason, heat generated from the power conversion components, such as the semiconductor elements and the transformer 53, is easily transferred to the terminals 62 by radiation, convection, and thermal conduction via the printed circuit board 51, etc.

[0047] In the first substrate 50 of this embodiment, a transformer 53, a common mode coil 54, and an electrolytic capacitor 55 are disposed on the upper surface of the printed circuit board 51, and a plurality of semiconductor elements are disposed on the lower surface of the printed circuit board 51. The number and arrangement of each electronic component are not particularly limited.

[0048] The second substrate 60 is a printed wiring board including terminals 62 arranged on a printed circuit board 61, and is housed in the front case 30. The second substrate 60 is electrically connected to the first substrate 50, and includes an output circuit for outputting DC power converted by the power supply circuit of the first substrate 50 from the terminals 62. In this embodiment, the second substrate 60 is arranged perpendicular to the first substrate 50. The second substrate 60 and the first substrate 50 may have, for example, a protrusion and an opening into which the protrusion is inserted, and may be fixed to each other.

[0049] In the second substrate 60, electronic components such as terminals 62 and electrolytic capacitors 63 are arranged on the front surface of a printed circuit board 61. In this embodiment, the number of terminals 62 is one, but the number of terminals 62 is not particularly limited, and two or more terminals may be used.

[0050] The terminal 62 is disposed, for example, in the center of the front surface of the printed circuit board 61. The terminal 62 is a USB terminal to which a USB connector can be connected. The terminal 62 has flat upper and lower surfaces and is formed into a flat cylindrical shape as a whole. The shape or type of the USB terminal is not particularly limited. The terminal 62 is disposed in such a manner that the USB connector can be inserted and removed through the connection port 31 formed in the front case 30.

[0051] [Heat transfer sheet] The heat transfer sheet will be described again with reference to FIG.

[0052] The heat transfer sheet is a member that transfers heat generated on the first substrate 50 to the insulating sheet and the rear case 20. The heat transfer sheets include a front upper heat transfer sheet 71 provided on the front side of the upper surface of the first substrate 50, a rear upper heat transfer sheet 72 provided on the rear side of the upper surface of the first substrate 50, and a lower heat transfer sheet 73 provided on the lower surface of the first substrate 50. However, the number and arrangement of the heat transfer sheets are not particularly limited.

[0053] The heat transfer sheet may be, for example, a flat sheet of a uniform thickness, and may be formed from an insulating material such as an insulating resin material. The resin forming the heat transfer sheet may be any flexible material that can be elastically deformed, and examples thereof include silicone resin, acrylic resin, urethane resin, and epoxy resin. The thermally conductive filler dispersed in the resin is preferably an insulating filler with high thermal conductivity, and examples thereof include aluminum oxide, aluminum nitride, and boron nitride. Conventionally known materials may be used for the heat transfer sheet.

[0054] [Insulation sheet] The insulating sheet will be described again with reference to FIG.

[0055] The insulating sheet is a member that insulates the first substrate 50 from the rear case 20. The insulating sheet includes an upper insulating sheet 81 formed in a box shape so as to cover the top and side surfaces of the first substrate 50, and a lower insulating sheet 82 formed in a box shape so as to cover the bottom and side surfaces of the first substrate 50. However, the number and arrangement of the insulating sheets are not particularly limited. The insulating sheet may be formed, for example, by folding a flat sheet of a constant thickness, and may be made of polycarbonate. Note that conventionally known members may be used for the insulating sheet.

[0056] [Bushing (fixed part)] The bushing 90 as the fixing member will be described with reference to FIG.

[0057] The bushing 90 serving as a fixing member has a cylindrical shape and fixes the power line 40 to the third opening 27 of the rear case 20. The bushing 90 has rubber elasticity and is formed from an elastomer such as silicone rubber or urethane rubber. The bushing 90 is slightly larger than the third opening 27 and seals the gap that occurs between the third opening 27 and the power line 40.

[0058] The above configuration suppresses misalignment of the power line 40 due to bending, pulling, or pushing of the power line 40 near the third opening 27, thereby suppressing the resulting failure of the power line 40, such as breakage. The shape of the bushing 90 is not particularly limited. A conventionally known member may be used for the bushing 90.

[0059] A protrusion 91 is provided inside the bushing 90. The power line 40 is arranged along the protrusion 91, thereby forming a bent portion 40A. This makes it possible to prevent the power line 40 from being broken inside the bushing 90. Note that a plurality of protrusions 91 may be provided, and a plurality of bent portions of the power line 40 may be provided. Furthermore, the protrusion may be provided inside the rear case 20. The bent portion of the power line 40 may be formed along a protrusion provided inside the rear case 20. Furthermore, protrusions may be provided both inside the bushing 90 and inside the rear case 20. The bent portion of the power line 40 may be formed along a protrusion provided inside the bushing 90 and a protrusion provided inside the rear case 20.

[0060] [Mounting frame] The mounting frame 110 will be described with reference to FIG.

[0061] The mounting frame 110 is a frame to which the USB outlets 10 and the rear case 20 are attached. The mounting frame 110 is provided around a drilling hole formed in a wall. The mounting frame 110 is made of a resin material, a steel plate (iron-based material), aluminum, an aluminum alloy, or the like. Note that there is no particular limitation on the number of USB outlets 10 attached to the mounting frame 110.

[0062] The mounting frame 110 is formed with a receptacle opening 111 in which three USB receptacles 10 are arranged adjacent to one another in the vertical direction, and mounting openings 112 into which the protrusions 22 on the rear case 20 of each USB receptacle 10 fit. The mounting openings 112 are formed in extensions 113 that extend rearward from the left and right ends of the mounting frame 110.

[0063] [Mounting frame (alternative embodiment)] Another embodiment of a mounting frame 120 will be described with reference to FIG.

[0064] The mounting frame 120 is a frame to which the USB outlets 10 and the rear case 20 are attached. The mounting frame 120 is provided around a drilling hole formed in a wall. The mounting frame 120 is made of steel plate (iron-based material), aluminum, aluminum alloy, or the like. Note that there is no particular limitation on the number of USB outlets 10 attached to the mounting frame 120.

[0065] Mounting frame 120 is formed with a receptacle opening 121 to which one USB receptacle 10 is attached, and protrusions 122 and 123 that fit into first opening 23 of rear case 20 of USB receptacle 10. Protrusion 123 is formed on connecting portion 124 that connects the upper and lower frames of mounting frame 120. Connecting portion 124 is formed with a width that allows it to be deformed by pressing a tool against it.

[0066] When attaching the USB outlet 10 to the mounting frame 120, the protrusion 122 is fitted into the first opening 23 on one side of the rear case 20 of the USB outlet 10, and the protrusion 123 is crimped toward the rear case 20 to fit into the first opening 23 on the other side.

[0067] [summary] The present disclosure is further illustrated by the following embodiments. Configuration 1: A wiring device attached to a mounting frame, The device includes a board to which a power line is connected and a first housing that houses the board, An attachment portion for attaching the first housing to the attachment frame is formed on one side of the first housing. Wiring equipment. Configuration 2: The wiring device according to configuration 1, The first housing is made of metal. Wiring equipment. Configuration 3: The wiring device according to configuration 1 or 2, The attachment portion is a plurality of protrusions. Wiring equipment. Configuration 4: The wiring device according to configuration 3, the plurality of protrusions are formed integrally with the first housing at the front ends of the left and right side surfaces of the first housing, respectively; Wiring equipment. Configuration 5: The wiring device according to configuration 1 or 2, The attachment portion is a plurality of openings. Wiring equipment. Configuration 6: The wiring device according to configuration 5, The plurality of openings are formed in a rectangular shape extending in the up-down direction in the first extension portion, The first extending portions are formed to extend to one side in parallel with the left and right side surface portions of the first housing. Wiring equipment. Configuration 7: The wiring device according to configuration 1 or 2, The first housing is separable into a first member and a second member. Wiring equipment. Configuration 8: The wiring device according to configuration 7, The first member and the second member are fastened by a fastening member. Wiring equipment. Configuration 9: The wiring device according to configuration 1 or 2, A second housing is attached to one side of the first housing. Wiring equipment. Configuration 10: A wiring device according to configuration 9, The first housing and the second housing are attached by a snap-fit ​​structure. Wiring equipment. Configuration 11: The wiring device according to configuration 1 or 2, the first housing has an opening, a fixing member for fixing the power line is provided in the opening, The power supply line extends to the outside of the first housing through the fixing member. Wiring equipment. Configuration 12: 12. The wiring device according to claim 11, The power supply line has at least one bent portion inside the first housing and / or inside the fixing member. Wiring equipment. Configuration 13: The wiring device according to configuration 12, A protrusion that maintains the bent state of the power line is provided inside the first housing and / or inside the fixing member. Wiring equipment.

[0068] It should be noted that the present disclosure is not limited to the above-described embodiments and their variations, and it goes without saying that various modifications and improvements are possible within the scope of the matters described in the claims of the present application. [Explanation of symbols]

[0069] 10 USB outlet (wiring device), 20 rear case (first housing), 22 protrusion, 23 first opening, 24 first extension, 25 second opening, 26 second extension, 27 third opening (opening), 28 box (first member), 29 lid (second member), 30 front case (second housing), 31 connection port, 32 claw portion, 40 power line, 50 first board (board), 51 printed circuit board, 53 transformer, 54 common mode coil, 55 electrolytic capacitor, 60 second board, 61 printed circuit board, 62 terminal, 63 electrolytic capacitor, 71 front upper heat transfer sheet, 72 rear upper heat transfer sheet, 73 lower heat transfer sheet, 81 upper insulating sheet, 82 lower insulating sheet, 90 bush (fixing member), 91 protrusion, 110 mounting frame, 111 outlet opening, 112 opening, 113 Extension portion, 120 mounting frame, 121 outlet opening, 122 protrusion, 123 protrusion, 124 connecting portion

Claims

1. A wiring device attached to a mounting frame, a substrate to which a power line is connected, and a first housing that houses the substrate; An attachment portion for attaching the first housing to the attachment frame is formed on one side of the first housing. Wiring equipment.

2. The wiring device according to claim 1, The first housing is made of metal. Wiring equipment.

3. The wiring device according to claim 1 or 2, The attachment portion is a plurality of protrusions. Wiring equipment.

4. The wiring device according to claim 3, the plurality of protrusions are formed integrally with the first housing at the front ends of the left and right side surfaces of the first housing, respectively; Wiring equipment.

5. The wiring device according to claim 1 or 2, The attachment portion is a plurality of openings. Wiring equipment.

6. The wiring device according to claim 5, The plurality of openings are formed in a rectangular shape extending in the up-down direction in the first extension portion, The first extending portions are formed to extend to one side in parallel with the left and right side surface portions of the first housing. Wiring equipment.

7. The wiring device according to claim 1 or 2, The first housing is separable into a first member and a second member. Wiring equipment.

8. The wiring device according to claim 7, The first member and the second member are fastened together by a fastening member. Wiring equipment.

9. The wiring device according to claim 1 or 2, A second housing is attached to one side of the first housing. Wiring equipment.

10. The wiring device according to claim 9, The first housing and the second housing are attached by a snap-fit ​​structure. Wiring equipment.

11. The wiring device according to claim 1 or 2, the first housing has an opening, a fixing member for fixing the power line is provided in the opening, The power supply line extends to the outside of the first housing through the fixing member. Wiring equipment.

12. The wiring device according to claim 11, The power supply line has at least one bent portion inside the first housing and / or inside the fixing member. Wiring equipment.

13. The wiring device according to claim 12, A protrusion that maintains the bent state of the power line is provided inside the first housing and / or inside the fixing member. Wiring equipment.

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