JP2020202743A - Wiring accessory - Google Patents

Abstract

To provide a wiring accessory which enables reduction of a possibility of falling from an attachment frame caused by damage of an attachment tool and a possibility of separation between a body and a cover caused by deformation of the attachment tool.SOLUTION: A wiring accessory 10 includes: a first inner terminal 8 configured so that an insertion type first outer terminal 18 may be connected thereto; a second inner terminal 9 configured so that a second outer terminal 19 may be connected thereto; a first substrate 5 on which the first inner terminal 8 is mounted; a second substrate 6 on which a transformer 161 is disposed; a yoke 13; a heat radiation sheet 133 disposed between the transformer and the yoke 13; and a housing 1 which houses the first inner terminal 8, the second inner terminal 9, the first substrate 5, the second substrate 6, the yoke 13, and the heat radiation sheet 133. A normal direction of the second substrate 6 is a direction intersecting with a normal direction of the first substrate 5.SELECTED DRAWING: Figure 1

Description

The present invention generally relates to a wiring fixture, and more particularly to a wiring fixture installed on a construction surface by a mounting frame.

Conventionally, a wiring device provided with a USB socket to which a USB plug is connected has been provided (see, for example, Patent Document 1). The wiring device described in Patent Document 1 includes a first printed wiring board, a second printed wiring board, and a housing for accommodating the first printed wiring board and the second printed wiring board. A USB socket and a part of a plurality of circuit components constituting the AC-DC converter are mounted on the first printed wiring board. Of the plurality of circuit components, the remaining circuit components other than the circuit components mounted on the first printed wiring board are mounted on the second printed wiring board.

Japanese Unexamined Patent Publication No. 2014-155396

In the wiring device described in Patent Document 1, the housing is fixed to a construction surface such as a wall surface by using a mounting frame. Two pairs of mounting protrusions that engage in the mounting holes of the mounting frame are provided on both the front and rear surfaces of the housing. The housing is coupled to the mounting frame by engaging each mounting protrusion into the mounting hole.

Generally, since the housing is made of resin, if a load is applied to the contact portion of each mounting convex portion with the mounting frame due to insertion / removal of a USB plug or the like, each mounting convex portion (mounting tool) provided on the housing is damaged. There was a possibility that the wiring equipment would fall out of the mounting frame.

An object of the present invention is to provide a wiring device capable of reducing the possibility of falling off from the mounting frame due to damage to the fitting, and further reducing the possibility of separation of the body and the cover due to deformation of the fitting. ..

The wiring device according to one aspect of the present invention includes a first inner terminal configured to connect a plug-in type first outer terminal, a second inner terminal configured to connect a second outer terminal, and the above. A first board on which a first inner terminal is mounted, a second board on which a transformer is arranged, a yoke, a heat radiating sheet arranged between the transformer and the yoke, the first inner terminal, and the first. The two inner terminals, the first substrate, the second substrate, the yoke, and the housing in which the heat radiation sheet is housed are provided. The normal direction of the second substrate is a direction intersecting the normal direction of the first substrate.

The wiring device of one aspect of the present invention has the effect of reducing the possibility of falling off from the mounting frame due to damage to the fitting, and further reducing the possibility of separation of the body and the cover due to deformation of the fitting. ..

FIG. 1 is an exploded perspective view of a wiring device according to an embodiment of the present invention. FIG. 2 is a perspective view of the wiring fixture of the same. 3A, 3B, and 3C are a plan view, a front view, and a rear view of a body included in the wiring device of the same, respectively. 4A, 4B, and 4C are a plan view, a front view, and a rear view of a cover provided in the same wiring device, respectively. 5A, 5B, and 5C are a plan view, a front view, and a rear view of a support member included in the wiring device of the same, respectively. 6A and 6B are a left side view and a right side view of the support member included in the wiring device of the same as above, respectively. FIG. 7 is a perspective view of the same wiring device with the cover removed. FIG. 8 is a side view of the wiring fixture of the same. FIG. 9 is a perspective view showing a state in which the same wiring device is attached to the mounting frame. FIG. 10 is a perspective view of the wiring fixture of the above modified example.

(1) Outline First, an outline of the wiring device 10 according to the present embodiment will be described with reference to FIGS. 1 and 2.

The wiring device 10 according to the present embodiment is, for example, a USB outlet to which a USB plug provided at the tip of the USB cable can be connected, and powers an electric device (for example, a smartphone) electrically connected to the USB cable. Make a supply. Further, the wiring device 10 according to the present embodiment is, for example, an indoor wiring device attached to a wall of a building. The building in which the wiring device 10 is installed is, for example, a detached house, each dwelling unit of an apartment house, an office, a store, a nursing facility, or the like.

The wiring fixture 10 is attached to the construction surface (here, the wall surface of the building) in a state where the electric wire is electrically connected to the wiring fixture 10. In the wiring device 10, the USB plug of the USB cable is electrically connected by inserting the USB plug of the USB cable into the first insertion hole 320 formed in the front surface 30 of the cover 3, and the wiring device 10 is connected to the electric device. Power can be supplied. Here, the wiring device 10 is an embedded type wiring device, and is attached to the construction surface using the mounting frame 500 (see FIG. 9). Specifically, the wiring device 10 is attached to the construction surface by fixing the mounting frame 500 to which the wiring device 10 is attached, for example, to the embedded box. The embedded box referred to here is a box-shaped member having an open front surface, and is installed in a wall so that the front surface is exposed forward from a construction hole formed in the construction surface.

As shown in FIG. 1, the wiring device 10 includes a housing 1 and a fixture 14. The housing 1 is attached to the front surface 20 of the body 2 so as to close the opening 20a of the body 2 and the body 2 having an opening 20a in the front surface 20, and is a plug insertion hole (first insertion hole) for connecting a plug (USB plug). ) A cover 3 having a 320 on its front surface 30 is provided. The fixture 14 is fixed to the housing 1 in order to mount the housing 1 on the mounting frame 500 fixed to the construction surface. The body 2 and the cover 3 are made of resin. The cover 3 is attached to the body 2 by a snap-fit structure (assembly protrusion 24, assembly piece 33). The fixture 14 is made of metal.

In the present embodiment, the housing 1 is attached to the mounting frame 500 by the metal mounting tool 14. Therefore, as compared with the resin mounting tool integrally formed with the housing 1, the mounting frame 500 of the mounting tool 14 is inserted or removed from the plug (first outer terminal 18 or second outer terminal 19 described later) to the housing 1. Even if a load is applied to the contact portion with, the fixture 14 is not easily damaged. Therefore, the possibility of the wiring fixture 10 falling off from the mounting frame 500 due to damage to the mounting tool 14 can be reduced. Further, in the housing 1, the cover 3 is attached to the body 2 by a snap-fit structure (assembly protrusion 24, assembly piece 33) independent of the attachment 14. Therefore, the cover 3 is maintained in a state of being attached to the body 2 even without the attachment 14. Therefore, even if the metal fixture 14 is deformed without being damaged by inserting or removing the plug (first outer terminal 18 or second outer terminal 19) into the housing 1, the connection between the cover 3 and the body 2 is maintained. Will be done. That is, the possibility of separation between the body 2 and the cover 3 due to the deformation of the fixture 14 can be reduced.

As described above, according to the wiring device 10 of the present embodiment, the possibility of falling off from the mounting frame 500 due to the damage of the mounting tool 14 can be reduced, and further, the body 2 and the cover 3 are separated due to the deformation of the mounting tool 14. The possibility of

(2) Details Hereinafter, the wiring device 10 according to the present embodiment will be described in detail. In the following description, unless otherwise specified, the arrows shown in FIGS. 1 to 5 define the vertical, horizontal, and front-back directions of the wiring device 10. That is, when the state in which the wiring fixture 10 is attached to the construction surface is viewed from the front, the vertical direction (vertical direction) is the vertical direction, the left-right direction is the left-right direction, and the normal direction of the construction surface is the front-rear direction (front side is the front side). ). However, these directions are not intended to define the directions in which the wiring device 10 is used. Further, the arrows shown in FIGS. 1 to 5 are described merely for the purpose of assisting the explanation, and are not accompanied by an entity.

As shown in FIGS. 1 and 2, the wiring device 10 according to the present embodiment includes a first inner terminal 8, a second inner terminal 9, a first board 5, a second board 6, and a third board 7. A support member 4, a housing 1, and a pair of mounting brackets (mounting tools) 14, 14 are provided.

The first inner terminal 8 is, for example, a USB (Universal Serial Bus) socket. As shown in FIG. 1, the first inner terminal 8 is mounted on the first substrate 5 so that its longitudinal direction (left-right direction) is along the longitudinal direction of the first substrate 5. In other words, the longitudinal direction of the first inner terminal 8 and the longitudinal direction of the first substrate 5 are the same direction. The first inner terminal 8 is configured so that a plug-in type first outer terminal 18 can be connected. The first outer terminal 18 is a USB plug provided at the tip of the USB cable here (see FIG. 1). The USB socket and USB plug comply with USB standards such as USB3.0.

The second inner terminal 9 is a terminal fitting having a U-shape when viewed from the rear, for example, by bending a sheet metal made of a copper alloy. The second inner terminal 9 is a set of two here. These second inner terminals 9 are mounted on the third substrate 7 with their opening sides facing each other.

The corresponding locking spring 11 is housed in the space surrounded by the left piece, the lower piece (or the upper piece), and the right piece of each second inner terminal 9. As shown in FIG. 1, the lock spring 11 has a support piece 110, a lock piece 111, and a pressing piece 112. The support piece 110 has a plate shape that is long in the front-rear direction. The lock piece 111 has a plate shape and is integrally formed at the rear end of the support piece 110. The lock piece 111 is inclined obliquely forward from the rear end of the support piece 110. The pressing piece 112 has a U-shape when viewed from above and below, and is integrally formed at the front end of the support piece 110.

The second inner terminal 9 is configured so that the second outer terminal 19 can be connected. The second outer terminal 19 here is a core wire of a power supply electric wire electrically connected to an external power source (for example, a commercial power source). The second outer terminal 19 is pressed against the left piece of the second inner terminal 9 by the pressing pressure from the pressing piece 112 of the lock spring 11, whereby the second inner terminal 9 and the second outer terminal 19 are electrically connected to each other. Be connected.

The first substrate 5 is, for example, a printed wiring board made of glass / epoxy resin. The first substrate 5 has a rectangular shape that is long in the left-right direction. The first substrate 5 has a first surface 51 and a second surface 52. The first surface 51 is the front surface of the first substrate 5 here, and the first inner terminal 8 is arranged on the first surface 51. The second surface 52 is the rear surface of the first substrate 5 here, and the electronic component 15 is arranged on the second surface 52. The electronic component 15 is, for example, a smoothing capacitor. This smoothing capacitor smoothes the DC power from the second substrate 6 and outputs it to the first inner terminal 8. The electronic component 15 is arranged at the right and lower corners of the second surface 52.

The first substrate 5 has a plurality of (three in this case) positioning holes 53. Each of the plurality of positioning holes 53 penetrates in a rectangular shape in the front-rear direction. Two of the plurality of positioning holes 53 are provided at positions closer to both ends in the left-right direction on the upper side of the four sides of the first substrate 5, respectively (only one side is shown in FIG. 1). ). The remaining one of the plurality of positioning holes 53 is provided at a position closer to the center in the left-right direction on the lower one side of the four sides of the first substrate 5.

The first substrate 5 is housed in the housing 1 so that its normal direction (thickness direction) is along the front-rear direction. In other words, the normal direction of the first substrate 5 is the direction along the insertion direction of the first outer terminal 18 with respect to the first inner terminal 8. Here, in the present embodiment, the insertion direction of the first outer terminal 18 with respect to the first inner terminal 8 is the front-rear direction.

Like the first substrate 5, the second substrate 6 is a printed wiring board made of, for example, a glass / epoxy resin. The second substrate 6 has a rectangular main portion 61 that is long in the front-rear direction and a rectangular protruding portion 62 that protrudes to the left from the front and left corners of the main portion 61, and has an L-shape when viewed from the vertical direction. Is formed in. A plurality of electronic components 16 are arranged on one surface (lower surface) of the second substrate 6 (main portion 61 and protruding portion 62). These plurality of electronic components 16 form, for example, an AC-DC converter that converts AC power supplied from an external power source via the electric wire into DC power having a predetermined voltage. Therefore, the plurality of electronic components 16 include a transformer, an electrolytic capacitor, a resistor, an inductor, and the like.

Further, a terminal portion 17 having a plurality of (here, three) connection pins is mounted on the main portion 61 of the second substrate 6. The second substrate 6 is electrically connected to the first substrate 5 by inserting a plurality of connection pins into a plurality of (three in this case) through holes formed in the first substrate 5 and connecting them with solder. Will be done. That is, the second board 6 outputs the DC power generated by the AC-DC converter to the first board 5 via the terminal portion 17. The second substrate 6 is housed in the housing 1 so that its normal direction (thickness direction) intersects the front-rear direction. In other words, the normal direction of the second substrate 6 is a direction that intersects the insertion direction.

The second substrate 6 is housed together with the yoke 13 and the heat radiating sheet 133 in the second storage part 21 of the body 2 described later. The yoke 13 forms a magnetic circuit together with a transformer 161 which is one of a plurality of electronic components 16 mounted on the second substrate 6. The yoke 13 is formed in a U shape when viewed from the vertical direction, for example, by bending a metal plate. The yoke 13 has a plate-shaped rear piece 130 along the left-right direction, a right piece 131 protruding forward from the right end of the rear piece 130, and a left piece 132 protruding forward from the left end of the rear piece 130. ing. The yoke 13 is arranged so as to cover the right side, the rear side, and the left side of the transformer mounted on the second substrate 6 in a state of being housed in the second storage portion 21. The heat radiating sheet 133 is arranged between the transformer 161 and the rear piece 130 of the yoke 13. In this case, the yoke 13 functions as a heat radiating plate. The heat radiating sheet 133 is formed of a material having a low elastic modulus (for example, a material having a lower elastic modulus than the material of the yoke 13). For example, as the heat radiating sheet 133, a sheet-shaped heat conductive gel can be mentioned. The thickness of the heat radiating sheet 133 is set to be larger than the design gap between the transformer 161 and the rear piece 130 of the yoke 13. As a result, even if the gap changes, the heat radiating sheet 133 can easily adhere to both the transformer 161 and the rear piece 130. Therefore, there is a high possibility that the heat from the transformer 161 can be transferred to the yoke 13, and the heat dissipation is improved.

Similar to the first substrate 5, the third substrate 7 is, for example, a printed wiring board made of glass / epoxy resin. The third substrate 7 has a rectangular shape that is long in the vertical direction. Two second inner terminals 9 are arranged side by side in the vertical direction on one surface (rear surface) of the third substrate 7. The third substrate 7 is electrically connected to the second substrate 6 via, for example, a lead wire, and outputs AC power supplied from an external power source to the second substrate 6 via the electric wire.

As shown in FIG. 1, the housing 1 includes a box-shaped body 2 having an opening 20a on one surface (front surface) 20 and a cover 3 attached to the front surface 20 of the body 2 so as to close the opening 20a of the body 2. Including. The body 2 and the cover 3 are made of resin. Here, the cover 3 is made of a material having a lower elastic modulus than the material of the body 2. Examples of the material of the cover 3 include ABS (Acrylonitrile butadiene styrene) resin (for example, PCABS). Examples of the material of the body 2 include resins having excellent flame retardancy (for example, melamine resin and urea resin).

As shown in FIGS. 3A to 3C, the body 2 has a rectangular parallelepiped shape that is long in the left-right direction. The body 2 has a second storage unit 21 for storing the second substrate 6 and a third storage unit 22 for storing the third substrate 7. In other words, the internal space of the body 2 is divided into a second storage portion 21 and a third storage portion 22 by a vertical wall 23 projecting forward from the bottom wall of the body 2. That is, of the internal space of the body 2, the space on the right side of the vertical wall 23 is the second storage unit 21, and the space on the left side of the vertical wall 23 is the third storage unit 22. Here, the second storage portion 21 and the third storage portion 22 have different external dimensions (height dimensions) along the front-rear direction. In the present embodiment, the height dimension of the third storage portion 22 is smaller than the height dimension of the second storage portion 21 (see FIG. 3A).

The second storage portion 21 has a pair of holding grooves 210, a first support portion 211, a second support portion 212, a third support portion 213, and a fourth support portion 214.

Each of the pair of holding grooves 210 has a U-shape when viewed from the front-rear direction, and is formed along the front-rear direction. The pair of holding grooves 210 are provided on the left side wall and the right side wall of the second storage portion 21, respectively. The pair of holding grooves 210 are provided at positions near the top of the second storage portion 21. Then, by inserting both ends of the second substrate 6 in the left-right direction into the pair of holding grooves 210, the second substrate 6 is housed in the second storage part 21 and held in the body 2. In other words, the second substrate 6 is held by the body 2 by inserting both ends in the direction intersecting the insertion direction and the normal direction of the second substrate 6 into the pair of holding grooves 210, respectively. To.

The first support portion 211 is provided at the right and lower corners of the second storage portion 21. The first support portion 211 projects forward from the bottom wall of the body 2. The surface (front surface) of the first support portion 211 is located rearward of the front end surface of the body 2 in the front-rear direction. A protrusion 2110 projecting forward is integrally formed at a position near the center of the front surface of the first support portion 211.

The second support portion 212 is provided on the right and upper corners of the second storage portion 21. In other words, the second support portion 212 is provided on the upper side of the right holding groove 210 of the pair of holding grooves 210. The second support portion 212 projects forward from the bottom wall of the body 2. The surface (front surface) of the second support portion 212 is located rearward of the front end surface of the body 2 in the front-rear direction. In other words, the front surface of the second support portion 212 is at the same position as the front surface of the first support portion 211 in the front-rear direction.

The third support portion 213 is provided on the left side of the second support portion 212. The third support portion 213 projects forward from the bottom wall of the body 2. The surface (front surface) of the third support portion 213 is located behind the front end surface of the body 2 in the front-rear direction. In other words, the front surface of the third support portion 213 is at the same position as the front surface of the first support portion 211 and the second support portion 212 in the front-rear direction.

The fourth support portion 214 is provided at the left and upper corners of the second storage portion 21. The fourth support portion 214 projects forward from the bottom wall of the body 2. The surface (front surface) of the fourth support portion 214 is located rearward of the front end surface of the body 2 in the front-rear direction. In other words, the front surface of the fourth support portion 214 is at the same position as the front surface of the first support portion 211, the second support portion 212, and the third support portion 213 in the front-rear direction. Here, in the present embodiment, the first support portion 211, the second support portion 212, the third support portion 213, and the fourth support portion 214 constitute a support portion that supports the support member 4 described later.

The vertical wall 23 that separates the second storage portion 21 and the third storage portion 22 has two protrusions 231. The two protrusions 231 project forward from both ends of the vertical wall 23 in the vertical direction.

The third storage unit 22 has two storage units for terminals 220 and a storage unit for buttons 221. The two terminal storage portions 220 are provided side by side in the vertical direction with a predetermined interval. The button storage unit 221 is provided between the two terminal storage units 220 in the vertical direction.

Each of the two terminal accommodating portions 220 accommodates one of the two second inner terminals 9 (including the corresponding locking spring 11) mounted on the third substrate 7. In a state where the two second inner terminals 9 are stored in the two terminal storage portions 220, the third substrate 7 is placed on the front end surface of the third storage portion 22. Second insertion holes 2200 penetrating in the front-rear direction are provided at positions corresponding to the two terminal storage portions 220 on the bottom wall of the body 2. Then, by inserting the second outer terminal 19 into the second insertion hole 2200, the second outer terminal 19 is electrically connected to the second inner terminal 9. At this time, the second outer terminal 19 is inserted between the second inner terminal 9 and the corresponding locking spring 11, and the left piece of the second inner terminal 9 is pushed by the pressing force from the pressing piece 112 of the locking spring 11. Contact. Further, the second outer terminal 19 is prevented from coming off by the lock piece 111 of the corresponding lock spring 11. As described above, the body 2 has a second insertion hole (electric wire insertion hole) 2200 for connecting the electric wire (second outer terminal 19) on the rear surface.

The release button 12 (see FIG. 1) is stored in the button storage unit 221. The release button 12 is a button for releasing the locked state of the second outer terminal 19 by the lock spring 11. The release button 12 is made of, for example, PBT resin. The release button 12 has an operation piece 120 and two action pieces 121. The operation piece 120 has a rectangular parallelepiped shape that is long in the front-rear direction. The two working pieces 121 are integrally formed on both sides of the operating piece 120 in the vertical direction. A release hole 2210 penetrating in the front-rear direction is provided at a position corresponding to the button storage portion 221 on the bottom wall of the body 2. The release hole 2210 is an elongated hole that is long in the vertical direction.

The release button 12 can be moved in the front-rear direction between the first position and the second position in a state of being stored in the button storage unit 221. When the release button 12 is in the first position, the lock piece 111 of the lock spring 11 prevents the second outer terminal 19 from coming off. When the release button 12 is in the second position, the lock piece 111 is moved away from the second outer terminal 19 by the action piece 121 of the release button 12, and the stopper of the second outer terminal 19 is released. That is, the second outer terminal 19 can be pulled out by moving the release button 12 to the second position. When moving the release button 12 to the second position, the release button 12 is moved to the second position by inserting a release jig (for example, a flat-blade screwdriver) into the release hole 2210. Further, when moving the release button 12 to the first position, the release button 12 is moved to the first position by the elastic force from the lock piece 111 of the lock spring 11 by removing the release jig from the release hole 2210. Move to.

The body 2 has a plurality of (here, four) assembly protrusions 24. Two of the plurality of assembly protrusions 24 are provided on the upper side wall of the body 2. These two assembly protrusions 24 are arranged in the left-right direction on the upper side wall with a predetermined interval. Further, the remaining two assembly protrusions 24 of the plurality of assembly protrusions 24 are provided on the lower side wall of the body 2. These two assembly protrusions 24 are arranged in the left-right direction on the lower side wall with a predetermined interval. The body 2 and the cover 3 are connected to each other by fitting the four assembly protrusions 24 into the four assembly holes 330 provided in the cover 3 described later, and the housing 1 is assembled.

Further, the body 2 has two ridge portions 25. One of the two ridges 25 projects forward from the front end of the left wall of the body 2. The other of the two ridges 25 projects forward from the front end of the right wall of the body 2. These ridge portions 25 are formed to have a predetermined length along the vertical direction.

As shown in FIGS. 4A to 4C, the cover 3 has a rectangular parallelepiped shape that is long in the left-right direction. The cover 3 has a cover main body 31, a pedestal portion 32, and two assembly pieces 33. In the cover 3, the front surface 31a of the cover main body 31 and the front surface 32a of the abutment portion 32 form the front surface 30 of the cover 3.

The cover body 31 has a rectangular parallelepiped shape with an open rear surface (face facing the body 2). The cover main body 31 has a plurality of (here, four) deformed portions 310, insertion portions 311, 312, four mounting grooves 313, and two insertion grooves 314.

The plurality of deformed portions 310 are provided near the four corners of the front wall of the cover main body 31 (see FIG. 4C). Each of the plurality of deformed portions 310 has a conical shape and projects rearward from the rear surface of the front wall of the cover main body 31. These plurality of deformed portions 310 are plastically deformed by coming into contact with the first surface 51 of the first substrate 5 in a state where the wiring device 10 is assembled. In other words, the tip portions of the plurality of deformed portions 310 are crushed by coming into contact with the first surface 51 of the first substrate 5.

The insertion portion 311 is provided near the corner portion on the left side and the lower side of the cover main body 31. The insertion portion 311 projects rearward from the rear surface of the front wall of the cover main body 31. The insertion portion 311 is located behind the rear end surface of the cover main body 31 in the front-rear direction. In other words, the insertion portion 311 projects rearward from the rear end surface of the cover body 31.

The insertion portion 312 is provided near the corner portion on the left side and the upper side of the cover main body 31. The insertion portion 312 projects rearward from the rear surface of the front wall of the cover main body 31. The insertion portion 312 is located rearward of the rear end surface of the cover main body 31 in the front-rear direction. In other words, the insertion portion 312 projects rearward from the rear end surface of the cover body 31. These insertion portions 311, 312 are inserted into the body 2 with the cover 3 attached to the body 2.

Each of the four mounting grooves 313 has a narrow portion 3130 and a large portion 3131. The width dimension (left and right dimension) of the narrow portion 3130 is slightly larger than the width dimension of the arm piece 141 of the mounting bracket 14 described later. The width dimension of the large portion 3131 is larger than the width dimension of the narrow portion 3130. The large portion 3131 is located behind the narrow portion 3130 in the front-rear direction.

Of the four mounting grooves 313, two mounting grooves 313 are provided on the upper side wall of the cover main body 31. These two mounting grooves 313 are provided at positions closer to both ends in the left-right direction of the upper side wall, respectively. The remaining two mounting grooves 313 out of the four mounting grooves 313 are provided on the lower side wall of the cover main body 31. These two mounting grooves 313 are provided at positions closer to both ends in the left-right direction of the lower side wall, respectively. In the present embodiment, a mounting groove 313 located on the right side of the upper side wall and a mounting groove 313 located on the right side of the lower side wall form a set of mounting grooves, and the mounting groove 313 and the lower side wall located on the left side of the upper side wall. A set of mounting grooves is formed by the mounting grooves 313 located on the left side of the above. Then, one mounting bracket 14 is attached to each set of mounting grooves.

Here, the wiring device 10 according to the present embodiment is attached to the mounting frame 500 by two mounting brackets 14.

As shown in FIG. 9, the mounting frame 500 has a rectangular frame shape having a rectangular window hole 510. At both ends of the mounting frame 500 in the longitudinal direction of the window hole 510, there is one box hole 520 for inserting a box screw that has a rectangular shape with rounded corners and is screwed into an embedded box embedded in the construction surface. It is provided one by one. Further, holding pieces 530 are projected rearward from both end edges of the window hole 510 in the lateral direction, and three pairs of hook holes 540 are provided in each holding piece 530 so as to be arranged along the longitudinal direction. Has been done.

As shown in FIG. 1, each of the two mounting brackets 14 has a U-shape when viewed from the left-right direction. Each mounting bracket 14 has a main piece 140 and two arm pieces 141. The main piece 140 has an L-shape when viewed from the vertical direction, and is formed along the vertical direction. On the left end edge (or right end edge) of the main piece 140, two hooking claws 1400 projecting to the left (or to the right) are integrally formed. The two hooking claws 1400 are provided at positions near both ends in the vertical direction of the main piece 140, respectively. Then, the wiring device 10 is attached to the mounting frame 500 by hooking each of these hooking claws 1400 in the two hooking holes provided in the mounting frame 500.

Two arm pieces 141 are integrally formed at both ends of the main piece 140 in the vertical direction. Each of the two arm pieces 141 has a plate shape extending in the anteroposterior direction. At the tip (rear end) of each arm piece 141, two bent pieces 1410 that are bifurcated in the left-right direction are integrally formed.

One of the two mounting brackets 14 (on the right side in FIG. 1) is mounted on the right side of the cover body 31. At this time, one arm piece 141 (lower side in FIG. 1) of the mounting bracket 14 is arranged in the mounting groove 313 on the right side of the lower side wall of the cover body 31, and the other arm piece (upper side in FIG. 1). 141 is arranged in the mounting groove 313 on the right side of the upper side wall of the cover main body 31. Then, the mounting bracket 14 is attached to the cover 3 by bending the two bent pieces 1410 of each arm piece 141 in the directions away from each other. The other mounting bracket 14 (on the left side in FIG. 1) is also mounted on the cover 3 by the same procedure.

As described above, the mounting tool 14 has a hooking claw 1400 that is hooked on the hooking hole 540 of the mounting frame 500. Therefore, the wiring device 10 can be easily attached to the mounting frame 500 by the mounting tool 14. Further, the mounting tool 14 is arranged on the front surface 30 of the cover 3 (front surface 31a of the cover main body 31), and extends rearward from both ends of the main piece 140 and the main piece 140 to be attached to the mounting frame 500, and the front side portion of the cover 3. It has a pair of arm pieces 141 sandwiching 3a. Then, the attachment 14 is fixed to the cover 3 by sandwiching the front side portion 3a of the cover 3 between the main piece 140 and the rear end (bending piece 1410) of the pair of arm pieces 141. In this way, the mounting tool 14 is fixed to the housing 1 in order to mount the housing 1 on the mounting frame 500. Therefore, the fixture 14 can be easily fixed to the cover 3.

In particular, the fixture 14 is fixed to the cover 3, which is a front portion of the housing 1. That is, since the attachment 14 does not contribute to the connection between the cover 3 and the body 2, the possibility of separation of the body 2 and the cover 3 due to the deformation of the attachment 14 can be further reduced.

Here, as shown in FIG. 8, the front side portion 3a of the cover 3 is located between the main piece 140 of the fixture 14 and the rear end (bending piece 1410) of the pair of arm pieces 141 in the front-rear direction of the cover 3. It is the part where it is located. In the present embodiment, the front side portion 3a is a portion of the cover main body 31 where the narrow portion 3130 is formed. In the front-rear direction of the cover 3, the portion between the rear surface of the cover 3 and the front side portion 3a is the rear side portion 3b of the cover 3. In the present embodiment, the rear side portion 3b is a portion of the cover main body 31 where the large portion 3131 is formed. That is, the rear side portion 3b of the cover 3 is not sandwiched by the pair of arm pieces 141 of the attachment 14. Here, the longer the dimension L10 in the front-rear direction of the front side portion 3a, the smaller the moment applied to the rear end (bending piece 1410) of the arm piece 141 centering on the main piece 140. On the other hand, the longer the front-rear dimension L20 of the rear side portion 3b, the easier it is for the cover 3 to bend at the rear side portion 3b. As a result, the moment applied to the rear end (bending piece 1410) of the arm piece 141 about the main piece 140 can be reduced. When the moment applied to the rear end (bending piece 1410) of the arm piece 141 centering on the main piece 140 becomes small, the load applied to the contact portion (hooking claw 1400) of the mounting tool 14 with the mounting frame 500 tends to be low. Considering these points, as an example, it is preferable that the front-rear dimension L10 of the front side portion 3a is ½ or more of the front-rear direction dimension L20 of the rear side portion 3b. On the other hand, the front-rear dimension L20 of the rear side portion 3b is preferably ½ or more of the front-rear direction dimension L10 of the front side portion 3a. Here, the dimension of the fixture 14 in the front-rear direction is substantially equal to the dimension L10 of the front side portion 3a in the front-rear direction. The front-rear direction dimension of the housing 1 is preferably twice or more the front-rear direction dimension of the fixture 14 (front-rear direction dimension L10 of the front side portion 3a). In this case, the influence of the load applied to the housing 1 on the contact portion (hooking claw 1400) of the mounting tool 14 with the mounting frame 500 can be reduced. In particular, in the housing 1, the front-rear dimension L30 between the front surface 31a of the cover body 31 and the rear surface of the body 2 is twice the front-rear dimension of the fixture 14 (the front-rear dimension L10 of the front portion 3a). The above is preferable.

The two insertion grooves 314 are provided at the rear ends of the left side wall and the right side wall of the cover body 31, respectively. The two insertion grooves 314 are formed to have a predetermined length along the vertical direction. In the state where the wiring device 10 is assembled, the two ridges 25 are inserted into the two insertion grooves 314, respectively.

The abutment portion 32 has a rectangular parallelepiped shape that is long in the left-right direction, and projects forward from the front wall of the cover main body 31. The front wall 300 of the abutment portion 32 is provided with a first insertion hole (insertion hole) 320 that penetrates in the front-rear direction. The first insertion hole 320 is provided at a position including the center of the facing surface 300a (see FIG. 4C) formed of the rear surface of the front wall 300 of the abutment portion 32. The first insertion hole 320 has a rectangular shape that is long in the left-right direction. In other words, the longitudinal direction of the first insertion hole 320 is the direction along the longitudinal direction of the front wall 300 of the abutment portion 32. Then, the first inner terminal 8 mounted on the first substrate 5 is housed in the housing 1 so that its longitudinal direction is along the longitudinal direction (left-right direction) of the housing 1.

The internal space of the cover main body 31 and the internal space of the abutment portion 32 are connected, and here, the first storage portion 34 is composed of two internal spaces. Therefore, in the state where the wiring device 10 is assembled, the first substrate 5 (including the first inner terminal 8) is housed in the first storage unit 34.

Assembly pieces 33 projecting rearward are integrally formed on the upper and lower side walls of the cover body 31. These assembly pieces 33 have a rectangular shape when viewed from the vertical direction. Further, the thickness of the assembly piece 33 is set so as to have elasticity in the thickness direction (vertical direction). Each assembly piece 33 is provided with two assembly holes 330 arranged in the left-right direction with a predetermined interval. When the cover 3 is attached to the body 2, the two assembly protrusions 24 provided on the upper side wall of the body 2 are fitted into the two assembly holes 330 of the assembly piece 33 on the upper side of the cover 3, respectively. Further, in the state where the cover 3 is attached to the body 2, the two assembly protrusions 24 provided on the lower side wall of the body 2 are fitted into the two assembly holes 330 of the assembly piece 33 on the lower side of the cover 3, respectively. Get stuck. As a result, the body 2 and the cover 3 are combined, and the housing 1 is assembled.

As described above, in the housing 1, the assembly protrusion 24 of the body 2 and the assembly piece 33 of the cover 3 form a snap-fit structure for connecting the body 2 and the cover 3 to each other. In other words, the snap-fit structure is composed of a first joint portion (assembly protrusion 24) formed on the side surface of the body 2 and a second joint portion (assembly piece 33). The second joint portion (assembly piece 33) protrudes rearward from the cover 3 so as to face the side surface of the body 2, and is mechanically coupled to the first joint portion (assembly protrusion 24) of the body 2. In this embodiment, the cover 3 is made of a material having a lower elastic modulus than the material of the body 2. Therefore, the snap-fit structure can reduce the possibility that the cover 3 will be damaged when the cover 3 is attached to the body 2. In particular, since the second joint portion 33 is provided on the cover 3, which has a lower elastic modulus of the material than the body 2, the second joint portion 33 is more easily deformed than when it is provided on the body 2. Therefore, the snap-fit structure makes it easy to attach the cover 3 to the body 2. In addition, it is easy to suppress damage to the second coupling portion 33.

The support member 4 is made of, for example, PBT resin. As shown in FIGS. 5A to 5C, 6A and 6B, the support member 4 has a rectangular parallelepiped shape in which one surface (rear surface) is open and is long in the left-right direction. The support member 4 has a support portion 41, a lower side wall portion 42, an upper side wall portion 43, a left side wall portion 44, and a right side wall portion 45. Here, in the present embodiment, the side wall portion is composed of the lower side wall portion 42, the upper side wall portion 43, the left side wall portion 44, and the right side wall portion 45.

The support portion 41 has a rectangular plate shape that is long in the left-right direction, and has a mounting surface (front surface) 400 on which the first substrate 5 is mounted. The mounting surface 400 intersects the insertion direction. Further, the support portion 41 has an opening hole 410, a component insertion hole 411, a plurality of (here, three) positioning protrusions 412, and a plurality of (here, three) pressing ribs 413.

The opening hole 410 has a rectangular shape that is long in the left-right direction, and penetrates in the front-rear direction near the center of the support portion 41. The component insertion hole 411 has a rectangular shape that is long in the vertical direction, and penetrates in the front-rear direction to the right side of the opening hole 410 in the support portion 41.

Two of the plurality of positioning protrusions 412 project forward from the upper end edge of the support portion 41. These two positioning protrusions 412 are provided at positions near both ends in the left-right direction, respectively. The remaining one positioning protrusion 412 out of the plurality of positioning protrusions 412 projects forward from the lower end edge of the support portion 41. The positioning protrusion 412 is provided at a position closer to the center in the left-right direction.

Here, a fixing structure 200 for fixing the first substrate 5 to the support member 4 is provided by the plurality of positioning protrusions 412 provided on the support member 4 and the plurality of positioning holes 53 provided on the first substrate 5. It is configured. Then, in the present embodiment, as shown in FIG. 5B, the plurality of positioning protrusions 412 are planes 100 passing through the center point P1 of the support portion 41, and the first outer terminal 18 is inserted into the first inner terminal 8. It is asymmetric with respect to the plane 100 along the direction. Therefore, the first substrate 5 is placed on the mounting surface 400 of the support portion 41 only when the orientations of the first substrate 5 are aligned so that the two positioning protrusions 412 and the two positioning holes 53 correspond to each other. be able to. That is, when the first substrate 5 is rotated 180 degrees with the center point P1 of the support portion 41 as the center of rotation, the first substrate 5 cannot be placed on the support portion 41, and the mounting error of the first substrate 5 is made. Can be suppressed.

Further, the vertical dimension and the horizontal dimension of the positioning hole 53 are slightly smaller than the vertical dimension and the horizontal dimension of the positioning protrusion 412. Therefore, when the three positioning protrusions 412 are inserted into the three positioning holes 53, not only the first substrate 5 can be positioned with respect to the support portion 41, but also the first substrate with respect to the support portion 41 can be positioned. 5 can be firmly attached.

Further, in a state where the first substrate 5 is attached (supported) to the support portion 41, the electronic component 15 mounted on the first substrate 5 is passed through the component insertion hole 411 of the support portion 41. Further, when the first substrate 5 is supported by the support portion 41, the connection pin with the first substrate 5 of the first inner terminal 8 exposed on the second surface 52 side of the first substrate 5 opens the support portion 41. It is passed through the hole 410.

The plurality of pressing ribs 413 project rearward from the rear surface (the surface opposite to the mounting surface 400) of the support portion 41. The plurality of pressing ribs 413 are provided along the left-right direction at the upper end edge of the opening hole 410. The plurality of pressing ribs 413 come into contact with the front end surface of the second substrate 6 in a state where the wiring instrument 10 is assembled, and exert a backward force on the second substrate 6.

The lower side wall portion 42 projects rearward (opposite to the first substrate 5) from one side (lower side) of the four sides of the mounting surface 400 of the support portion 41. The lower side wall portion 42 has a plurality of (three in this case) pressing portions 420 and 421, a groove 422, and a through hole 423. The through hole 423 penetrates in the vertical direction at a position facing the electronic component 16 mounted on the second substrate 6. The plurality of pressing portions 420 and 421 project rearward from the rear end portion of the lower side wall portion 42. Two of the plurality of pressing portions 420 and 421 are provided on the right side of the through hole 423. The remaining one holding portion 421 of the plurality of holding portions 420 and 421 is provided on the left side of the through hole 423. The groove 422 is provided between the two pressing portions 420 arranged in the left-right direction.

The upper side wall portion 43 projects rearward (opposite to the first substrate 5) from one side (upper side) of the four sides of the mounting surface 400 of the support portion 41. The upper side wall portion 43 has a plurality of (here, three) pressing portions 430 and 431 and a groove 432. The plurality of pressing portions 430 and 431 project rearward from the rear end portion of the upper side wall portion 43. One of the plurality of pressing portions 430 and 431, the pressing portion 430, is provided at a position closer to the right end of the upper side wall portion 43. Of the plurality of pressing portions 430 and 431, the remaining two pressing portions 430 and 431 are provided at positions closer to the center in the left-right direction of the upper side wall portion 43. The groove 432 is provided between the two pressing portions 430 and 431 arranged in the left-right direction.

The left side wall portion 44 projects rearward (opposite to the first substrate 5) from one side (left side) of the four sides of the mounting surface 400 of the support portion 41. The left side wall portion 44 has a plurality of (here, two) pressing portions 440, a vertical groove 441, and an insertion groove 442. The plurality of pressing portions 440 project rearward from the rear end portion of the left side wall portion 44. The plurality of pressing portions 440 are provided at both ends of the left wall portion 44 in the vertical direction. The vertical groove 441 has an arcuate shape when viewed from the front-rear direction, and is formed along the front-rear direction on the surface (left surface) of the left wall portion 44. The insertion groove 442 has a U-shape when viewed from the front-rear direction, and is formed along the front-rear direction. The insertion groove 442 is provided on the lower side of the upper holding portion 440. The left end portion of the second substrate 6 is inserted into the insertion groove 442.

The right side wall portion 45 projects rearward (opposite to the first substrate 5) from one side (right side) of the four sides of the mounting surface 400 of the support portion 41. The right side wall portion 45 has a pressing portion 450, an insertion groove 451 and a relief groove 452. The pressing portion 450 projects rearward from the rear end portion of the right side wall portion 45. The pressing portion 450 is provided at the upper end portion of the right side wall portion 45. The insertion groove 451 has a U-shape when viewed from the front-rear direction, and is formed along the front-rear direction. The insertion groove 451 is provided on the lower side of the holding portion 450. The right end portion of the second substrate 6 is inserted into the insertion groove 451. The relief groove 452 is formed so as to be continuous with the insertion groove 451. In the state where the wiring device 10 is assembled, a part of the second substrate 6 enters the relief groove 452.

(3) Assembling Method of Wiring Equipment Next, an assembling method of the wiring equipment 10 according to the present embodiment will be described.

After storing the release button 12 in the button storage unit 221 of the third storage unit 22, the operator stores the second board 6 in the second storage unit 21 of the body 2 and stores the third board 7 in the third storage unit 7. It is stored in the part 22. At this time, both ends of the main portion 61 of the second substrate 6 in the left-right direction are inserted into the pair of holding grooves 210, respectively. At this time, the two second inner terminals 9 (including the corresponding lock spring 11) mounted on the third substrate 7 are respectively housed in the two terminal storage portions 220 of the third storage portion 22. To. The third substrate 7 is placed on the front end surface of the third accommodating portion 22 so that its normal direction is along the front-rear direction.

Next, the operator places the support member 4 on the body 2 so as to cover the second substrate 6 (see FIG. 7). At this time, the two pressing portions 420 of the support member 4 come into contact with the first supporting portion 211 of the body 2 from the front (on the side of the first substrate 5), and the pressing portion 450 comes into contact with the second supporting portion 212 from the front. At this time, one of the two pressing portions 430 comes into contact with the third supporting portion 213 from the front, and the other contacts the fourth supporting portion 214 from the front. Further, at this time, the pressing portions 421, 431, 440 come into contact with the surface (front surface) of the third substrate 7 from the front. Here, in the present embodiment, the contact portion is composed of the pressing portions 420, 430, 450.

When the support member 4 is mounted on the body 2, a part of the second substrate 6 is in a space surrounded by the support portion 41, the lower side wall portion 42, the upper side wall portion 43, the left side wall portion 44, and the right side wall portion 45. It is stored. That is, in the present embodiment, the storage portion 46 is configured by the space surrounded by the support portion 41, the lower side wall portion 42, the upper side wall portion 43, the left side wall portion 44, and the right side wall portion 45. In other words, a storage portion 46 is provided between the support portion 41 and the contact portion in the insertion direction (front-back direction) of the first outer terminal 18 with respect to the first inner terminal 8.

Subsequently, the operator fixes the first substrate 5 to the support portion 41 of the support member 4. At this time, the three positioning protrusions 412 provided on the support portion 41 are fitted into the three positioning holes 53 provided on the first substrate 5, respectively. At this time, the electronic component 15 arranged on the second surface 52 of the first substrate 5 is passed through the component insertion hole 411, and the connection pin of the first inner terminal 8 exposed on the second surface 52 side is inserted into the opening hole 410. Passed through. In this state, the second surface 52 of the first substrate 5 and the mounting surface 400 of the support portion 41 are in contact with each other in the front-rear direction.

Finally, the operator attaches the cover 3 to the front surface 20 of the body 2 so as to close the opening 20a of the front surface 20 of the body 2. At this time, the four assembly protrusions 24 provided on the body 2 are fitted into the four assembly holes 330 provided on the cover 3, respectively. At this time, the insertion portions 311, 312 provided in the cover 3 are inserted into the body 2. Further, at this time, the two ridge portions 25 provided on the body 2 are inserted into the two insertion grooves 314 provided on the cover 3, respectively.

The wiring device 10 is assembled by the above procedure.

(4) Method of Attaching Wiring Equipment to Mounting Frame The wiring equipment 10 is attached to the mounting frame 500 by the following procedure as shown in FIG. First, the abutment portion 32 of the wiring device 10 is inserted into the window hole 510 of the mounting frame 500 from the rear. Next, the wiring device 10 is attached to the mounting frame 500 by hooking the two hooking claws 1400 of the pair of mounting tools 14 on the two hooking holes 540 provided in the pair of holding pieces 530 of each mounting tool 14. Be done.

(5) Modified Example The embodiment of the present invention is not limited to the above embodiment. The above-described embodiment can be variously modified according to the design and the like as long as the object of the present invention can be achieved. The modifications of the above embodiment are listed below.

FIG. 10 shows a wiring device 10A of a modified example of the above embodiment. In the wiring device 10A, the housing 1A is composed of a body 2A and a cover 3A. Here, the body 2A has a longer front-rear dimension than the body 2 of the above-described embodiment, and the cover 3A has a shorter front-rear dimension than the cover 3 of the above-described embodiment. That is, the housing 1A is different from the housing 1 in the ratio of the dimensions of the body and the cover in the front-rear direction.

Due to such a change, the four mounting grooves 313A of the cover 3A, unlike the mounting grooves 313, do not have the large portion 3131 but only the narrow portion 3130. The body 2A has four mounting grooves (second mounting grooves) 241 connected to the four mounting grooves 313A of the cover 3A, respectively. Each of the four second mounting grooves 241 has a narrow portion 2410 and a large portion 2411. The width dimension (left and right dimension) of the narrow portion 2410 is slightly larger than the width dimension of the arm piece 141 of the mounting bracket 14. The width dimension of the large portion 2411 is larger than the width dimension of the narrow portion 3130. The large portion 2411 is located behind the narrow portion 3130 in the front-rear direction.

Two of the four second mounting grooves 241 are provided on the upper side wall of the body 2A. These two second mounting grooves 241 are provided at positions closer to both ends in the left-right direction of the upper side wall, respectively. The remaining two second mounting grooves 241 of the four second mounting grooves 241 are provided on the lower side wall of the body 2A. These two second mounting grooves 241 are provided at positions closer to both ends in the left-right direction of the lower side wall, respectively.

One of the two mounting brackets 14 (on the right side in FIG. 10) is mounted on the right side of the housing 1A. At this time, one of the pair of arm pieces 141 of the mounting bracket 14 is arranged in the mounting groove 313 on the right side of the lower side wall of the cover body 31 of the cover 3A and the second mounting groove 241 on the right side of the lower side wall of the body 2A. .. The other of the pair of arm pieces 141 of the mounting bracket 14 is arranged in the mounting groove 313 on the right side of the upper side wall of the cover body 31 of the cover 3A and the second mounting groove 241 on the right side of the upper side wall of the body 2A. Then, the mounting bracket 14 is attached to the housing 1A by bending the two bent pieces 1410 of each arm piece 141 in the directions away from each other. The other of the two mounting brackets 14 (left side in FIG. 10) is also mounted on the housing 1A by the same procedure. As described above, in the wiring device 10A, the fitting 14 sandwiches the front side portion of the cover 3A and the body 2A between the main piece 140 and the rear end (bending piece 1410) of the pair of arm pieces 141, thereby sandwiching the housing 1A. Is fixed to. In this case, the cover 3A is also attached to the body 2A by the attachment 14.

Further, the body 2A has a plurality of (here, two) assembly protrusions 24. One of the plurality of assembly protrusions 24 is provided on the upper side wall of the body 2A, and the other is provided on the lower side wall of the body 2A. In the cover 3A, similarly to the cover 3, the assembly pieces 33 projecting rearward are integrally formed on the upper side wall and the lower side wall of the cover main body 31. However, each assembly piece 33 is provided with only one assembly hole 330. When the cover 3A is attached to the body 2A, one assembly protrusion 24 provided on the upper side wall of the body 2A fits into one assembly hole 330 of the assembly piece 33 on the upper side of the cover 3A. Similarly, one assembly protrusion 24 provided on the lower side wall of the body 2A fits into one assembly hole 330 of the assembly piece 33 on the lower side of the cover 3A. As a result, the body 2A and the cover 3A are combined, and the housing 1A is assembled.

As described above, also in the housing 1A, the assembly protrusion 24 of the body 2A and the assembly piece 33 of the cover 3A form a snap-fit structure that connects the body 2A and the cover 3A to each other.

In the wiring device 10A shown in FIG. 10, in addition to the snap-fit structure, the attachment 14 maintains the connection between the cover 3A and the body 2A. In such a wiring device 10A as well, similarly to the wiring device 10 of the above embodiment, the possibility of the wiring device 10A falling off from the mounting frame 500 due to damage to the mounting tool 14 can be reduced, and further, the mounting tool 14 is deformed. The possibility of separation between the body 2A and the cover 3A can be reduced.

In the above embodiment, in the snap-fit structure, the first joint portion (assembly protrusion 24) fits into the empty space (assembly hole 330) of the second joint portion (assembly piece 33) to form the second joint portion. To be combined. However, in the snap-fit structure, the second joint may be coupled to the first joint by fitting into a void in the first joint.

In the above embodiment, the cover 3 is made of a material having a lower elastic modulus than the material of the body 2. However, the cover 3 does not necessarily have to be made of a material having a lower elastic modulus than the material of the body 2. For example, the body 2 and the cover 3 may be made of PBT (Polybutylene terephthalate) resin.

In the above embodiment, the attachment 14 is fixed to the housing 1 by using the bending piece 1410 provided at the rear end of the arm piece 141. However, the rear end of the arm piece 141 may have a shape suitable for various fixing other than the bending piece 1410. For example, the rear end of the arm piece 141 may have a shape fixed to the housing 1 by a snap-fit structure.

Further, in the above embodiment, the case where the first inner terminal 8 is a USB socket has been described as an example, but the first inner terminal 8 is not limited to the USB socket. The first inner terminal 8 may be, for example, an HDMI (High-Definition Multimedia Interface) terminal (registered trademark). Further, the first inner terminal 8 may be a VGA (Video Graphics Array) terminal (registered trademark), a LAN (Local Area Network) terminal, or the like.

Further, in the above embodiment, the case where the wiring fixture 10 attached to the mounting frame 500 is attached to a construction surface such as a wall surface of a building has been described as an example, but the wiring appliance 10 is attached to, for example, a table, a desk, or the like. You may. In this case, the wiring fixture 10 may be attached to the table, desk, etc. so that the insertion direction of the first outer terminal 18 with respect to the first inner terminal 8 is along the normal direction (vertical direction) of the table, desk, or the like. preferable.

(6) Effect As described above, the wiring device (10; 10A) according to the first aspect has the housing (1; 1A) and the housing (1;) on the mounting frame (500) fixed to the construction surface. In order to attach 1A), a fitting (14) fixed to the housing (1; 1A) is provided. The housing (1; 1A) has a body (2; 2A) having an opening (20a) on the front surface (20), and the body (2; 2A) so as to close the opening (20a) of the body (2; 2A). A cover (3; 3A) attached to the front surface (20) of the. The cover (3; 3A) has a plug insertion hole (320) on its front surface (30) for connecting a plug (first outer terminal 18). The body (2; 2A) and the cover (3; 3A) are made of resin. The cover (3; 3A) is attached to the body (2; 2A) by a snap-fit structure. The fixture (14) is made of metal. According to the first aspect, the possibility of the wiring device (10; 10A) falling off from the mounting frame (500) due to the breakage of the fitting (14) can be reduced, and the body due to the deformation of the fitting (14) can be reduced. The possibility of separation between (2; 2A) and the cover (3; 3A) can be reduced.

The wiring device (10) according to the second aspect can be realized in combination with the first aspect. In the second aspect, the fixture (14) is fixed to the cover (3). According to the second aspect, since the fixture (14) does not contribute to the connection between the cover (3) and the body (2), the body (2) and the cover (3) due to the deformation of the fixture (14). ) Can be further reduced.

The wiring device (10) according to the third aspect can be realized in combination with the second aspect. In the third aspect, the attachment (14) is arranged on the front surface of the cover (3) and is attached to the attachment frame (500) from both ends of the main piece (140) and the main piece (140). It has a pair of arm pieces (141) that extend posteriorly and sandwich the front side portion (3a) of the cover (3). According to the third aspect, the fixture (14) can be easily fixed to the cover (3).

The wiring device (10) according to the fourth aspect can be realized in combination with the third aspect. In a fourth aspect, the attachment (14) is a front portion (3) of the cover (3) between the main piece (140) and the rear end (bending piece 1410) of the pair of arm pieces (141). By sandwiching 3a), it is fixed to the cover (3). According to the fourth aspect, the fixture (14) can be easily fixed to the cover (3).

The wiring device (10; 10A) according to the fifth aspect can be realized by combining with any one of the first to fourth aspects. In a fifth aspect, the cover (3; 3A) is formed of a material having a lower elastic modulus than the material of the body (2; 2A). According to the fifth aspect, the snap-fit structure can reduce the possibility of damage to the cover (3; 3A) when the cover (3; 3A) is attached to the body (2; 2A).

The wiring device (10; 10A) according to the sixth aspect can be realized in combination with the fifth aspect. In the sixth aspect, the snap-fit structure is composed of a first joint portion (24) and a second joint portion (33). The first coupling portion (24) is formed on the side surface of the body (2; 2A). The second coupling portion (33) projects rearward from the first coupling portion (24) and the cover (3; 3A) so as to face the side surface of the body (2; 2A), and the body (2; It is mechanically coupled to the first coupling portion (24) of 2A). According to the sixth aspect, the second joint portion (33) is more easily deformed than when it is provided on the body (2; 2A). Therefore, the snap-fit structure makes it easy to attach the cover (3; 3A) to the body (2; 2A). In addition, it is easy to suppress damage to the second joint portion (33).

The wiring device (10; 10A) according to the seventh aspect can be realized by combining with any one of the first to sixth aspects. In a seventh aspect, the attachment (14) has a hook claw (1400) that is hooked into the hook hole (540) of the mounting frame (500). According to the seventh aspect, the wiring device (10; 10A) can be easily attached to the mounting frame (500).

The wiring device (10; 10A) according to the eighth aspect can be realized by combining with any one of the first to seventh aspects. In the eighth aspect, the body (2; 2A) has an electric wire insertion hole (second insertion hole 2200) for connecting an electric wire (second outer terminal 19) on the rear surface. According to the eighth aspect, electric wires can be connected.

The wiring device (10; 10A) according to the ninth aspect can be realized by combining with any one of the first to eighth aspects. In the ninth aspect, the front-rear dimension of the housing (1; 1A) is at least twice the front-rear dimension of the fixture (14). According to the ninth aspect, the influence of the load applied to the housing (1; 1A) on the contact portion of the fitting (14) with the mounting frame (500) can be reduced.

The wiring device (10; 10A) according to the tenth aspect can be realized by combining with any one of the first to ninth aspects. In a tenth aspect, the wiring device (10; 10A) is housed in the housing (1; 1A), and a USB socket (first outer terminal 18) is connected through the plug insertion hole (320). (First inner terminal 8) is provided. According to the tenth aspect, the USB plug can be connected.

10 Wiring equipment 1 Housing 14 Fixture 140 Main piece 1400 Hooking claw 141 Arm piece 1410 Rear end (bending piece)
18 plug (first outer terminal)
19 Electric wire (second outer terminal)
2 Body 20 Front 20a Opening 2200 Electric wire insertion hole (second insertion hole)
24 1st joint (assembly protrusion)
3 Cover 3a Front part 30 Front 320 Plug insertion hole (1st insertion hole)
33 Second joint (assembly piece)
8 USB socket (1st inner terminal)
500 mounting frame 540 hook hole

Claims (10)

The first inner terminal, which is configured so that the plug-in type first outer terminal can be connected,
A second inner terminal configured to connect the second outer terminal,
The first board on which the first inner terminal is mounted and
The second board on which the transformer is placed and
With York
A heat radiating sheet arranged between the transformer and the yoke,
A housing in which the first inner terminal, the second inner terminal, the first substrate, the second substrate, the yoke, and the heat radiating sheet are housed.
With
The normal direction of the second substrate is a direction intersecting the normal direction of the first substrate.
Wiring equipment. The yoke is formed by processing a metal plate.
The wiring device of claim 1. The yoke forms a magnetic circuit with the transformer.
The wiring device according to claim 1 or 2. The heat radiating sheet is formed of a material having a lower elastic modulus than the material of the yoke.
A wiring device according to any one of claims 1 to 3. The heat radiating sheet is a heat conductive gel.
A wiring device according to any one of claims 1 to 4. The heat radiating sheet is in contact with the transformer.
Wiring device according to any one of claims 1 to 5. The heat dissipation sheet is in contact with the yoke,
Wiring device according to any one of claims 1 to 6. The first inner terminal is a USB socket.
Wiring device according to any one of claims 1 to 7. In order to mount the housing on a mounting frame fixed to the construction surface, a mounting tool fixed to the housing is further provided.
The housing comprises a body and a cover.
The fixture is made of metal,
A wiring device according to any one of claims 1 to 8. The second outer terminal is a core wire of a power supply electric wire electrically connected to an external power source.
A plurality of electronic components are arranged on the second substrate.
The plurality of electronic components constitute an AC-DC converter that converts AC power supplied from an external power source via the electric wire into DC power having a predetermined voltage.
The transformer is one of the plurality of electronic components.
The second substrate outputs the DC power generated by the AC-DC converter to the first substrate.
Wiring device according to any one of claims 1 to 9.

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