CN113632332A

CN113632332A - Wiring tool system and unit device

Info

Publication number: CN113632332A
Application number: CN202080024309.8A
Authority: CN
Inventors: 笹田基弘; 东江麻祐; 吉村庸; 津吉胜己; 向井达哉; 加藤一祐; 女川崇; 奥浦圭一郎; 山本慧
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2019-03-28
Filing date: 2020-03-06
Publication date: 2021-11-09
Also published as: JP7373738B2; JP2020167811A; WO2020195717A1; TWI752445B; TW202038267A; JP2023178346A

Abstract

An object of the present disclosure is to provide a wiring tool system and a unit device having reduced time and effort associated with replacement of a wiring tool and the like. The wiring appliance system (10) comprises a first unit (1) and a second unit (2). The first unit (1) is configured to be fixed to a construction object (3). The second unit (2) is configured to be removably mounted to the first unit (1). The first unit (1) comprises a power receiving portion and at least one installation space (12). The power receiving portion is configured to be supplied with electric power. The at least one mounting space (12) is a space in which the second units (2) are mounted one by one. The second unit (2) is a wiring tool having a functional section. The function section is configured to perform supply of electric power to at least one of the load (4) and the control load (4). The first unit (1) is configured to supply power to the second unit (2).

Description

Wiring tool system and unit device

Technical Field

The present disclosure relates generally to a wiring harness system and a unit device, and particularly, to a wiring harness system and a unit device configured to be fixed to a construction object and perform at least one of supply of electric power to a load and control of the load.

Background

Patent document 1 describes a wiring device (wiring apparatus) including: a first connection part to which an electric wire from an external power source is electrically connected; and a second connecting portion to which an insert plug provided to an electric wire from the electric device is detachably connected. The wiring tool includes, for example: a temperature measurement unit attached to at least one position of each of the first connection portion and the second connection portion; and a circuit breaker configured to interrupt an electrical connection between the first connection portion and the second connection portion. When the wiring tool described in patent document 1 determines that there is an abnormality based on the temperature detected by the temperature measuring unit, the wiring tool causes the interrupter to open the contact.

Documents of the prior art

Patent document

Patent document 1: JP 2016-58332A

Disclosure of Invention

According to the configuration described in patent document 1, the circuit breaker operates upon determining abnormality from the temperature detected by the temperature measuring unit, and thereafter, in order to use the wiring tool, it is required to replace the wiring tool. Further, even if the circuit breaker is not operated, it is necessary to replace the wiring tool in order to impart the function described in patent document 1 to, for example, a socket (outlet) having no circuit breaker function.

In view of the above, it is an object of the present disclosure to provide a wiring tool system and a unit device that can reduce time and effort related to, for example, replacement of a wiring tool.

A wiring appliance system according to one aspect of the present disclosure includes a first unit and a second unit. The first unit is configured to be fixed to a construction object. The second unit is configured to be removably mounted to the first unit. The first unit includes a power receiving portion and at least one installation space. The power receiving portion is configured to be supplied with electric power. The at least one installation space is a space in which the second units are installed one by one. The second unit is a wiring tool including a function section. The functional portion is configured to perform at least one of supplying power to the load and controlling the load. The first unit is configured to supply power to the second unit.

A cell arrangement according to one aspect of the present disclosure is configured for use as a first cell or a second cell in a wiring harness system.

Drawings

Fig. 1A is a perspective view schematically illustrating a state in which a second unit is removed from a first unit in a wiring appliance system according to a first embodiment;

fig. 1B is a perspective view schematically illustrating a state in which a second unit is mounted to a first unit in the wiring appliance system;

FIG. 2A is a front view schematically illustrating a wiring harness system;

FIG. 2B is a right side view schematically illustrating a wiring harness system;

fig. 3 is an exploded perspective view schematically illustrating a first unit of the wiring harness system;

fig. 4 is an exploded perspective view schematically illustrating a second unit of the wiring appliance system;

fig. 5 is a diagram schematically illustrating an example of replacement of the second unit in the wiring tool system;

fig. 6A to 6C are front views schematically illustrating a wiring tool system according to a first modification of the first embodiment;

fig. 7A to 7C are front views schematically illustrating a wiring tool system according to a second modification of the first embodiment;

fig. 8A is a perspective view schematically illustrating a wiring tool system according to a third modification of the first embodiment;

Fig. 8B is a perspective view schematically illustrating a wiring tool system according to a fourth modification of the first embodiment;

fig. 8C is a perspective view schematically illustrating a wiring tool system according to a fifth modification of the first embodiment;

fig. 8D is a perspective view schematically illustrating a wiring tool system according to a sixth modification of the first embodiment;

fig. 9A is a front view schematically illustrating a state in which a second unit is removed from a first unit in the wiring appliance system according to the second embodiment;

fig. 9B is a front view schematically illustrating a state in which a second unit is mounted to a first unit in the wiring appliance system according to the second embodiment;

fig. 10A is a front view schematically illustrating a wiring harness system according to a third embodiment;

fig. 10B is a partially cut-away right side view schematically illustrating a wiring tool system according to a third embodiment;

fig. 11A is a front view schematically illustrating a wiring harness system according to a fourth embodiment;

fig. 11B is a sectional view taken along line X-X of fig. 11A, in which the locking portion is in an unlocked state in the wiring appliance system according to the fourth embodiment;

FIG. 11C is a cross-sectional view taken along line X-X of FIG. 11A, wherein the locking portion is in a locked state in the wiring harness system; and

Fig. 12A to 12C are front views schematically illustrating a wiring tool system according to a fifth embodiment.

Detailed Description

(first embodiment)

(1) Summary of the invention

First, an outline of the wiring harness system 10 according to the present embodiment will be described with reference to fig. 1A and 1B.

The wiring harness system 10 according to the present embodiment is fixed to the construction object 3 and performs power supply to at least one of the load 4 and the control load 4. The "construction object" mentioned in the present disclosure is an object to which the wiring harness system 10 is to be fixed, and examples of the construction object include: buildings such as walls, ceilings and floors, and furniture and fixtures (including building components) such as tables, shelves, counters, etc. Further, a "load" as used in this disclosure is an apparatus (including facilities, devices, and systems) that is provided with power from the wiring harness system 10 or is controlled by the wiring harness system 10. Examples of the load include a lighting fixture, an air conditioner, a refrigerator, a ventilator, an information processing apparatus, and a portable terminal.

That is, the wiring appliance system 10 is, for example, a system serving as a "wiring appliance", such as a socket, a switching device, a dimming device, a motion sensor device, or a time-keeping device. For example, the wiring appliance system 10 having a socket function is fixed to a construction object 3 such as a wall of a building, and is used for supplying power to a load 4 such as an air conditioning apparatus in this state. Further, for example, the wiring appliance system 10 having a switching device function is fixed to the construction object 3 such as a wall of a building, and is used to turn on/off the energization of the load 4 such as a lighting appliance in this state, thereby controlling the load 4.

Such a wiring harness system 10 is used, for example, in a facility. The present embodiment shows an example in which the wiring harness system 10 is used in a residential facility such as a complex residence or a single-family residence of a multiple dwelling complex (multiple dwelling complex), for example. The present example should not be construed as limiting, and the wiring harness system 10 may be used, for example, in non-residential facilities such as office buildings, stores, schools, welfare facilities, commercial facilities, theme parks, hospitals, hotels, or factories. In summary, in various facilities, whether they are residential or non-residential, the harness system 10 can be used to power or control such devices, as long as a large number of devices are used as the loads 4. Further, the wiring appliance system 10 is not limited to indoor use, but may be used in a specific space of an outdoor facility such as a park or a field. In the case of outdoor applications, the wiring device system 10 preferably satisfies prescribed properties such as waterproofness (including rain-proofness and drip-proofness), weather resistance, and the like.

A commonly used wiring tool is fixed to a construction object 3 such as a wall in a facility, for example, by an attachment member such as a switch box. The common wiring fixture has a terminal for connecting a wiring (electric wire), and connecting the wiring placed in the wall (the construction object 3) to the terminal electrically connects the common wiring fixture to the power supply or the load 4 via the wiring. For example, replacement of such wiring appliances or the like involves changing the connection of the wiring to the wiring appliance, and therefore requires at least a certain skill, and may additionally require a specific qualification depending on the country or region. Therefore, replacement of a commonly used wiring tool or the like may require time and effort. The wiring harness system 10 according to the present embodiment employs the following configuration to reduce the time and effort required for replacement of the wiring harness and the like.

The wiring harness system 10 according to the present embodiment includes a first unit 1 and a second unit 2. The first unit 1 is fixed to the construction object 3. The second unit 2 is removably mounted to the first unit 1. The first unit 1 includes a power receiving portion 11 (see fig. 3) and an installation space 12 (see fig. 1A). The power receiving portion 11 is configured to be supplied with electric power. The installation space 12 is a space where the second units 2 are installed one by one. The second unit 2 is a wiring tool including a function section 21 (see fig. 4). The function section 21 is configured to perform supply of electric power to at least one of the load 4 and the control load 4. The first unit 1 supplies power to the second unit 2.

That is, the wiring harness system 10 adopts the above-described structure, thereby reducing the time and effort required to replace the wiring harness. In summary, the second unit 2 as a wiring tool is removably mounted to the first unit 1 fixed to the construction object 3, and therefore, removing the second unit 2 from the first unit 1 only enables the second unit 2 to be removed from the construction object 3. At this time, the first unit 1 including the power receiving portion 11 for being supplied with power remains at the construction object 3, and therefore, the second unit 2 as a wiring tool can be replaced or the like without changing the wiring connection 51 (see fig. 2B) to the power receiving portion 11. Therefore, according to the wiring appliance system 10, it is possible to reduce the time and effort required for replacement of the wiring appliance and the like.

Further, the unit device according to the present embodiment is a device used as the first unit 1 or the second unit 2 in the wiring appliance system 10. In other words, the first unit 1 and the second unit 2 each comprise a unit arrangement. Thus, the unit device as the second unit 2 is removably mounted to the unit device as the first unit 1 with respect to the wiring harness system 10 as a whole.

(2) Details of

The configuration of the wiring harness system 10 according to the present embodiment will be described in detail below with reference to fig. 1A to 4.

(2.1) precondition

In the present embodiment, an example will be described in which the wiring appliance system 10 has a function as a receptacle of various wiring appliances such as a receptacle, a switching device, a dimming device, a motion sensor device, and a timer device. That is, in the present embodiment, the wiring appliance system 10 has a function of a socket to which a plug of an electric appliance as the load 4 is to be connected and which is configured to supply electric power to the load 4.

Further, in the present embodiment, an example in which the wiring appliance system 10 is fixed to a wall of a residential facility will be explained. That is, the object 3 is a wall of a residential facility.

In the following description, a direction vertical (orthogonal) to a horizontal plane in a state where the wiring harness system 10 is fixed to a wall of a residential facility as the construction object 3 may be referred to as "up-down direction", and a downward direction (gravitational direction) when the wiring harness system 10 is viewed from the front may be referred to as "down". Further, a direction orthogonal to the up-down direction and parallel to the front face of the building 3 is referred to as a "left-right direction", and when the wiring harness system 10 is viewed from the front face, the right direction may be referred to as a "right direction", and the left direction may be referred to as a "left direction". Further, a direction orthogonal to both the up-down direction and the left-right direction, that is, a direction orthogonal to the front surface of the construction object 3 may be referred to as "front-rear direction", and the back surface side (the back side of the wall) of the construction object 3 may be referred to as "back". Note that these directions do not limit the direction in which the wiring harness system 10 is used.

Furthermore, references to "orthogonal" in this disclosure do not refer to a 90 degree intersection in the strict sense, but rather to an intersection that is substantially orthogonal within a margin of error. That is, the angle between the front surface of the construction object 3 and the front-rear direction is within a certain degree of error (for example, 10 degrees or less) with respect to 90 degrees. In the present embodiment, for example, the angle between the front surface of the construction object 3 and the front-rear direction is 90 degrees. Likewise, references to "parallel" in this disclosure also do not refer to an angle of 0 degrees between two objects in a strict sense, but rather to a state where two objects are substantially parallel within a certain degree of error.

(2.2) integral Structure

As shown in fig. 1A to 2B, the wiring appliance system 10 includes a first unit 1 and a second unit 2. The first unit 1 is fixed to a construction object 3 (a wall of a residential facility in the present embodiment). The second unit 2 is removably mounted to the first unit 1.

Fig. 1A is a perspective view schematically illustrating a state in which the second unit 2 is removed from the first unit 1. Fig. 1B is a perspective view schematically illustrating a state in which the second unit 2 is attached to the first unit 1. Further, in fig. 2A and 2B, the second unit 2 attached to the first unit 1 is indicated by an imaginary line (long dashed line and short dashed line).

The construction object 3 includes a wall panel 31 and a column 32 located on a rear surface (back surface) of the wall panel 31. Wall panel 31 is secured to post 32. The construction object 3 has a construction hole 33 at a position corresponding to the first unit 1. The construction hole 33 penetrates the wall panel 31 in the thickness direction (front-rear direction). In the present embodiment, for example, the construction hole 33 has a circular (true circular) shape in a front view.

The first unit 1 is disposed on the rear surface side of the wall plate 31. The first unit 1 is attached to the column 32 with, for example, a fixing member 34 (see fig. 1A) such as a wood screw, thereby fixing the first unit 1 to the construction object 3. The first unit 1 provided on the rear surface side of the wall plate 31 is exposed in front of the wall plate 31 through the construction hole 33. That is, the first unit 1 can be accessed from the front side of the wall panel 31 through the construction hole 33.

The first unit 1 includes a power receiving portion 11 and an installation space 12. The power receiving portion 11 is configured to be supplied with electric power. The installation space 12 is a space where the second units 2 are installed one by one. The wiring 51 (see fig. 2B) is electrically connected to the power receiving portion 11. The wiring 51 is electrically connected to a power supply such as a system power supply or a distribution power supply, for example, via a power facility such as a distribution board 53 (refer to fig. 8D). Therefore, the power receiving unit 11 is supplied with power from the power supply via the wiring 51.

Further, the mounting space 12 of the first unit 1 has a recess 121 configured to accommodate at least a part of the second unit 2 (see fig. 1A). In the present embodiment, a part of the front surface of the first unit 1 is recessed rearward, whereby the recess 121 opens forward. The recess 121 is a part of the mounting space 12 for mounting the second unit 2. In the present embodiment, for example, as shown in fig. 2A, the recess 121 has a circular shape slightly smaller than the application hole 33 in a front view. Therefore, in a state where the second unit 2 is mounted in the mounting space 12 of the first unit 1, at least a part of the second unit 2 is accommodated in the recess 121 of the mounting space 12. In the present embodiment, the recess 121 opens forward, and therefore at least the rear portion of the second unit 2 will be accommodated in the recess 121.

Furthermore, the first unit 1 includes a switch box 13. The switch box 13 is fixed to the construction object 3. Further, the switch box 13 has a lead-in portion 131 (see fig. 3) into which the wiring 51 is led. In the present embodiment, the first unit 1 has a switch box 13 in a box shape as an outer contour of the first unit 1, and the power receiving portion 11 and other components are included in the switch box 13. The switch box 13 is attached to the column 32 with a fixing member 34 such as a wood screw, thereby fixing the first unit 1 to the construction object 3. The wiring 51 is introduced into the switch box 13 through the introduction portion 131, whereby the wiring 51 can be electrically connected to the power receiving portion 11 in the switch box 13. In the present embodiment, the first unit 1 is provided on the rear surface side of the wall plate 31, and therefore, the switch box 13 is a built-in type switch box.

The second unit 2 is removably mounted to the first unit 1. In other words, the second unit 2 is removably mounted to the first unit 1. In the present embodiment, the second unit 2 is attached to the first unit 1 from the front side of the wall panel 31 through the construction hole 33. The second unit 2 is configured to be supplied with power from the first unit 1 in a state where the second unit 2 is mounted to the first unit 1. That is, the first unit 1 supplies power to the second unit 2.

In the present embodiment, the second unit 2 has a circular portion 22 having a circular shape in a front view. The circular portion 22 has a cylindrical shape. Further, the second unit 2 is integrated with the front end of the circular portion 22, and has a front plate portion 23 which is square in front view. The front plate portion 23 is slightly larger than the front surface of the circular portion 22, so that the front plate portion 23 projects laterally (upward, downward, leftward, and rightward) from the entire circumference of the circular portion 22. In other words, the circular portion 22 is in the projection plane of the front plate portion 23 and has a shape in which the circular portion 22 of a cylindrical shape protrudes rearward from the central portion of the rear surface of the plate-like front plate portion 23.

The second unit 2 is a wiring tool including a function section 21 (see fig. 4). The function section 21 is configured to perform supply of electric power to at least one of the load 4 and the control load 4. In the present embodiment, the second unit 2 functions as a receptacle to which a plug of the load 4 can be connected. Therefore, the functional section 21 is a socket block that supplies power to the load 4. The load 4 has a pair of insertion pieces 41 at the plug. The "insert piece" referred to in the present invention refers to a conductive member of a plug, and the conductive member is to be inserted into a receptacle (second unit 2) and is, for example, a blade (blade) or a pin. In the present embodiment, each of the pair of insertion pieces 41 is a blade including a flat plate made of metal. The pair of insertion pieces 41 are arranged to face each other in a thickness direction defined with respect to each insertion piece 41.

In the present embodiment, the second unit 2 is used for 100V alternating current without a ground electrode, and has a function as a single outlet to which one plug can be connected. Specifically, the second unit 2 has a pair of insertion holes 231 formed in the front plate portion 23. The pair of insertion holes 231 is opened in the front surface of the second unit 2. The pair of insertion holes 231 is configured such that a pair of insertion pieces 41 of the plug can be inserted into the pair of insertion holes 231. In a state where the pair of insertion pieces 41 are inserted into the pair of insertion holes 231, the function section 21 supplies power to the load 4 and mechanically holds the plug.

Here, in order to install the second unit 2 in the installation space 12, the second unit 2 is linearly moved to the first unit 1. That is, mounting the second unit 2 to the first unit 1 involves at least a linear movement of the second unit 2 to the first unit 1 as illustrated in fig. 1A. Further, in order to install the second unit 2 in the installation space 12, the second unit 2 is rotated with respect to the first unit 1. That is, mounting the second unit 2 to the first unit 1 involves at least rotation of the second unit 2 relative to the first unit 1 as illustrated in fig. 1B. More specifically, the second unit 2 is inserted straight into the first unit 1 in the direction indicated by the arrow a1 (see fig. 1A), and then rotated in the direction indicated by the arrow a2 (see fig. 1B) with respect to the first unit 1, thereby being mounted to the first unit 1. Here, the second unit 2 is rotated in the opposite direction for mounting and removing the second unit 2. In the present embodiment, for example, in order to mount the second unit 2 to the first unit 1, the second unit 2 is rotated clockwise in front view, and in order to remove the second unit 2 from the first unit 1, the second unit 2 is rotated counterclockwise in front view.

In the present embodiment, the first unit 1 employs a hook-shaped ceiling junction box (a hooking ceiling junction box) as a member for electrically and mechanically connecting the second unit 2. Specifically, the first unit 1 employs a square hook-shaped ceiling junction box (see fig. 3) as the power receiving portion 11. Thus, the pair of connection terminals 24 (see fig. 4) of the second unit 2 is inserted into the power receiving portion 11 from the front, and then further rotated clockwise in a front view, thereby electrically and mechanically connecting the second unit 2 to the power receiving portion 11 of the first unit 1.

As described above, the wiring harness system 10 according to the present embodiment is divided into two units, i.e., the first unit 1 and the second unit 2. Thus, the first unit 1 is fixed to the construction object 3, and the second unit 2 is mounted to the first unit 1, thereby attaching the entire wiring appliance system 10 to the construction object 3. In a state where the entire wiring harness system 10 is attached to the construction object 3, as shown in fig. 2A and 2B, not only the circular portion 22 of the first unit 1 but also the second unit 2 is embedded in the construction object 3 through the construction hole 33. At this time, the front plate portion 23 of the second unit 2 covers the application hole 33 from the front, and closes the application hole 33.

Further, in a state where the entire wiring harness system 10 is attached to the construction object 3, the front surface of the first unit 1 is in contact with the circumference of the construction hole 33 in the wall panel 31 from the rear. Further, the rear surface (back surface) of the front plate portion 23 of the second unit 2 contacts the circumference of the construction hole 33 of the wall plate 31 from the front. Therefore, the wiring harness system 10 is attached to the construction object 3 in a state where the wall plate 31 is disposed between a part of the first unit 1 and a part of the second unit 2 (the front plate portion 23). Further, the wiring harness system 10 protrudes from the front surface of the wall plate 31 by an amount substantially equal to the thickness dimension of the front plate portion 23.

(2.3) construction of first Unit

Next, the configuration of the first unit 1 will be explained in detail with reference to fig. 3.

As shown in fig. 3, the first unit 1 includes a power receiving portion 11, a switch case 13, an inner lid 14, and an insertion guide 15. That is, in the present embodiment, the first unit 1 includes the inner lid 14 and the insertion guide 15 in addition to the power receiving portion 11, the mounting space 12, and the switch box 13 described above.

As described above, the power receiving portion 11 is the square hook-shaped ceiling junction box. In the present embodiment, for example, in a front view, the power receiving portion 11 is a rectangular parallelepiped longer in the left-right direction than in the up-down direction. The rear surface side of the power receiving portion 11 has a terminal for connection to a wiring 51 (see fig. 2B).

The power receiving unit 11 has a pair of connection ports 111. The pair of connection ports 111 are located at opposite ends in the left-right direction in the front surface of the power receiving portion 11. Each of the pair of connection ports 111 has an arc shape along a virtual circle having a center at a center point of the front surface of the power receiving portion 11. In the present embodiment, each of the pair of connection ports 111 has a wider portion that is wider than the other portions. The wide portion is located at one end in the circumferential direction around the center point of the front surface of the power receiving portion 11. Accordingly, the pair of connection terminals 24 of the second unit 2 is inserted through the wide portion into the pair of connection ports 111, and the second unit 2 is rotated clockwise in a front view, thereby electrically and mechanically connecting the second unit 2 to the power receiving portion 11. Accordingly, the second unit 2 is electrically connected to the wiring 51 via the power receiving portion 11, and therefore, the first unit 1 can supply power to the second unit 2.

In the present embodiment, the power receiving portion 11 is fixed to the switch case 13 with a pair of bolts 161 and a pair of collars (collars) 162. The pair of bolts 161 and the pair of collars 162 are inserted into a pair of through holes 112 formed in the power receiving portion 11 and a pair of through holes 132 formed in the switch box 13, and are fastened to each other with the power receiving portion 11 and the switch box 13 sandwiched between the pair of bolts 161 and the pair of collars 162. Strictly speaking, the pair of collars 162 are inserted into the pair of through holes 112 and fixed to the power receiving portion 11 in this state. The pair of through holes 112 penetrate the power receiving portion 11 in the front-rear direction, and the pair of through holes 132 penetrate the bottom plate of the switch case 13 in the front-rear direction. Thus, the power receiving portion 11 is fixed to the bottom plate of the switch box 13.

The switch case 13 is box-shaped having an opening on the front surface. In the present embodiment, for example, the switch case 13 is made of metal and is substantially square in shape in front view. The switch case 13 has a hole as a lead-in portion 131 in a central portion of a bottom plate (rear wall) of the switch case 13. Therefore, the wiring 51 can be drawn into the switch box 13 from the rear surface (back surface) side through the drawing-in portion 131. The wiring 51 led into the switch box 13 is electrically connected to the power receiving portion 11 in the switch box 13. The pair of through holes 132 are provided on both sides in the left-right direction of the introduction portion 131 formed in the bottom plate of the switch case 13.

The left side wall of the switch box 13 has a pair of fixing holes 133 for fixing the switch box 13 to the construction object 3. That is, the switch box 13 is fixed to the construction object 3 by the fixing member 34 such as a wood screw being screwed to the column 32 of the construction object 3 through the pair of fixing holes 133 (see fig. 1A). The right side wall of the switch case 13 has a pair of operation holes 134 formed at positions facing the pair of fixing holes 133. Accordingly, the fixing member 34 such as a wood screw may be operated by a tool (jig) such as a screwdriver through the corresponding operation hole 134.

The inner lid 14 is accommodated in the switch case 13 and functions as a lid of the power receiving portion 11. In the present embodiment, for example, the inner lid 14 is made of resin and has a substantially square shape in front view. In a front view, the outer peripheral edge of the inner lid 14 substantially corresponds to the inner peripheral edge of the peripheral wall of the switch case 13. Therefore, in a state where the inner lid 14 is accommodated in the switch case 13, the inner lid 14 is fitted in the switch case 13, and movement of the inner lid 14 relative to the switch case 13 is restricted at least in a direction orthogonal to the front-rear direction. The inner lid 14 is combined with the switch case 13 to cover the power receiving portion 11 from the front. Therefore, the power receiving portion 11 is accommodated between the bottom plate of the switch case 13 and the inner cover 14.

In the present embodiment, the rear surface (back surface) of the inner lid 14 has a recess in which the power receiving portion 11 is housed. That is, the inner lid 14 and the power receiving portion 11 are combined with each other such that at least a portion of the power receiving portion 11 enters the inner lid 14 from the rear surface of the inner lid 14. Therefore, the inner lid 14 can be disposed near the bottom plate of the switch case 13. In the present embodiment, the inner lid 14 is disposed between the center in the front-rear direction in the internal space of the switch case 13 and the bottom plate (i.e., the back side).

Here, the inner lid 14 has a recess 141. The recess 141 is opened forward with a part of the front surface of the inner lid 14 recessed rearward. In the present embodiment, for example, the recess 141 has a circular shape slightly smaller than the construction hole 33 in a front view (see fig. 2A). The inner diameter of the recess 141 is greater than or equal to the outer diameter of the circular portion 22 of the second unit 2 and is substantially equal to the outer diameter of the circular portion 22.

Further, the inner lid 14 has a pair of through holes 142, and the pair of through holes 142 are formed to have shapes and positions corresponding to those of the pair of connection ports 111 of the power receiving portion 11. The pair of through holes 142 are open at the bottom surface of the recess 141 and penetrate the inner lid 14 in the thickness direction (front-rear direction). Specifically, the pair of through holes 142 are formed to have the same shape and position as those of the pair of connection ports 111 such that the pair of through holes 142 overlap with the pair of connection ports 111 of the power receiving portion 11 in a front view. Therefore, in order to mount the second unit 2 in the mounting space 12, the pair of connection terminals 24 of the second unit 2 is inserted into the pair of connection ports 111 through the pair of through holes 142. In a state where the pair of connection terminals 24 are inserted into the pair of connection ports 111 through the pair of through holes 142, the second unit 2 is rotated clockwise in a front view, thereby electrically and mechanically connecting the second unit 2 to the power receiving part 11.

The insertion guide 15 is attached to the front end of the switch case 13, and when the second unit 2 is mounted to (or removed from) the first unit, the insertion guide 15 functions as a guide for restricting the traveling direction of the second unit 2. In the present embodiment, for example, the insertion guide 15 is made of resin and has a substantially square shape in front view. Except for the front end of the insertion guide 15, the outer peripheral edge of the insertion guide 15 substantially corresponds to the inner peripheral edge of the peripheral wall of the switch box 13 in front view. Further, the front end of the insertion guide 15 is slightly larger than the opening surface of the switch case 13 in front view. Therefore, the insertion guide 15 is attached by fitting to the front end of the switch case 13, thereby restricting the movement of the insertion guide 15 relative to the switch case 13 at least in the direction orthogonal to the front-rear direction.

In this embodiment, the insertion guide 15 has a guide hole 151 penetrating the insertion guide 15 in the thickness direction (front-rear direction). In the present embodiment, the guide hole 151 is formed in a majority of the insertion guide 15 except for the outer peripheral portion of the insertion guide 15 in a front view, in such a manner that the insertion guide 15 forms a frame body.

In the present embodiment, for example, the guide hole 151 is formed at the same position as the recess 141 such that the guide hole 151 overlaps with the recess 141 in a front view. Further, the guide hole 151 has a shape: in the front view, only a part in the circumferential direction is enlarged as compared with the recessed portion 141 with reference to the same circular shape as the recessed portion 141 (see fig. 2A). The inner diameter (minimum inner diameter) of the guide hole 151 is equal to the inner diameter of the recess 141. That is, the inner diameter (minimum inner diameter) of the guide hole 151 is greater than or equal to the outer diameter of the circular portion 22 of the second unit 2 and is substantially equal to the outer diameter of the circular portion 22 in practice. Therefore, in the front view, the inner peripheral surface of the guide hole 151 overlaps with the inner peripheral surface of the recess 141 at a plurality of (eight in the example shown in fig. 2A) positions.

The power receiving portion 11, the switch box 13, the inner lid 14, and the insertion guide 15 having the above-described configuration are combined with each other, thereby forming the first unit 1. Accordingly, in a state where the second unit 2 is mounted to the first unit 1, the circular portion 22 of the second unit 2 is inserted into the recess 141 of the inner lid 14 through the guide hole 151 of the insertion guide 15. Accordingly, the guide hole 151 of the insertion guide 15 and the recess 141 of the inner lid 14 form a part of the recess 121 (see fig. 1A) that will accommodate the second unit 2, respectively. Accordingly, the guide hole 151 of the insertion guide 15 and the recess 141 of the inner lid 14 are included in the installation space 12. The bottom surface of the recess 141 forms the bottom surface of the recess 121 formed in the mounting space 12.

The inner peripheral surface of the guide hole 151 formed in the insertion guide 15 and the inner peripheral surface of the recess 141 formed in the inner lid 14 are in contact with the outer peripheral surface of the circular portion 22 of the second unit 2, and therefore the insertion guide 15 and the inner lid 14 restrict the traveling direction of the second unit 2. That is, the insertion guide 15 and the inner lid 14 restrict the second unit 2 from moving in a direction orthogonal to the front-rear direction with respect to the first unit 1.

Therefore, when the second unit 2 is inserted into the mounting space 12 (recess 121) or removed from the mounting space 12 (recess 121), the insertion guide 15 and the inner lid 14 function as guides to restrict the second unit 2 from moving in directions other than the front-rear direction. As a result, the mounting (or removal) of the second unit 2 involving the movement of the second unit 2 in the front-rear direction is relatively facilitated. Further, when the second unit 2 is rotated with respect to the first unit 1, the insertion guide 15 and the inner cover 14 function as guides to restrict the movement of the second unit 2 other than the rotation of the second unit 2. As a result, the mounting (or removal) of the second unit 2 involving the rotation of the second unit 2 is relatively facilitated.

(2.4) construction of second Unit

Next, the configuration of the second unit 2 will be explained in detail with reference to fig. 4.

As shown in fig. 4, the second unit 2 includes a functional portion 21, a circular portion 22, a front plate portion 23, a pair of connection terminals 24, and an attachment cover 27. That is, in the present embodiment, the second unit 2 includes the attachment cover 27 in addition to the above-described functional portion 21, the circular portion 22, the front plate portion 23, and the pair of connection terminals 24.

As described above, the function section 21 is a socket block configured to supply electric power to the load 4. In the present embodiment, for example, the function section 21 is an embedded wiring appliance to be fixed to a mounting frame of an interchangeable large boss type wiring appliance standardized according to japanese industrial standards. Specifically, the functional section 21 is a parallelepiped longer in the left-right direction than in the up-down direction in a front view. The rear surface side of the functional portion 21 has a terminal for connecting an electric wire. The electric wires connected to the pair of connection terminals 24 are connected to the terminals of the functional portion 21.

Further, the function section 21 has a pair of insertion ports 211. The pair of insertion ports 211 are arranged to face each other in the left-right direction in the front surface of the functional portion 21. The pair of insertion openings 211 is configured such that a pair of insertion pieces 41 of the plug of the load 4 can be inserted into the pair of insertion openings 211. In a state where the pair of insertion pieces 41 are inserted into the pair of insertion ports 211, the function section 21 supplies power to the load 4 and mechanically holds the plug.

More specifically, the function section 21 includes a housing 212 made of, for example, a resin such as urea-formaldehyde resin or acrylate-styrene-acrylonitrile (ASA) resin, and the front surface of the housing 212 has a pair of insertion ports 211. The functional portion 21 includes a pair of conductive members in the housing 212 at positions corresponding to the pair of insertion ports 211. Each of the conductive members includes a metal plate having conductivity and elasticity, such as a metal plate made of copper or a copper alloy. The conductive member mechanically holds the insertion piece 41 inserted in the insertion port 211 and is electrically connected to the insertion piece 41. In the present embodiment, each of the insertion pieces 41 is a blade, and therefore, the conductive member is a blade receiving member that holds the insertion piece 41 therebetween.

Further, the functional section 21 includes a plurality of attachment pieces 213 protruding from both end surfaces in the left-right direction of the housing 212. These plurality of attachment pieces 213 are used to fix the function part 21 to the mounting frame of an interchangeable large square boss type wiring appliance standardized according to japanese industrial standards. In the present embodiment, these plurality of attachment pieces 213 are used to fix the functional portion 21 to the circular portion 22.

The circular portion 22 includes a hollow member 25 and a lid member 26. The hollow member 25 is cylindrical in shape and circular in shape in front view. The cover member 26 is disc-shaped and circular in front view. The cover member 26 is bonded to the hollow member 25 to close the rear surface (back surface) of the hollow member 25. The circular portion 22 is formed by combining the lid member 26 and the hollow member 25 as described above. In the present embodiment, for example, both the hollow member 25 and the lid member 26 forming the circular portion 22 are made of resin.

The hollow member 25 has a pair of screw holes 251 for fixing the lid member 26 and the attachment cover 27 to the hollow member 25. Specifically, the cover member 26 is coupled to the hollow member 25 with a pair of screws 281 inserted into the pair of screw holes 251 from the rear. The attachment cover 27 is joined to the hollow member 25 with a pair of screws 282 inserted into the pair of screw holes 251 from the front.

Further, at least a part of the functional portion 21 is accommodated in the inner space of the hollow member 25. The hollow member 25 further includes a pair of fixing portions 252 for fixing the functional portion 21. The pair of fixing portions 252 protrude toward each other from positions facing each other in the left-right direction of the inner peripheral surface of the hollow member 25. Each of the fixing portions 252 includes a pair of fixing recesses 253 juxtaposed in the up-down direction. Each fixing recess 253 is opened forward.

Further, the hollow member 25 has a pair of through holes 254 for fixing the front plate portion 23. Each through hole 254 penetrates the hollow member 25 in a thickness direction (radial direction) defined with respect to the hollow member 25. Specifically, the front plate portion 23 is joined to the hollow member 25 with a pair of screws 284 inserted laterally into the pair of through holes 254. At this time, the pair of screws 284 are screwed to a pair of tabs protruding rearward from the rear surface (back surface) of the front plate portion 23.

A cover member 26 is attached to the rear end of the hollow member 25 to close the rear surface (back surface) of the hollow member 25. Except for the rear end of the cover member 26, the outer periphery of the cover member 26 substantially corresponds to the inner periphery of the hollow member 25 in a front view. Further, the rear end of the lid member 26 is slightly larger than the opening surface of the hollow member 25 in front view. Thus, the cover member 26 is attached by fitting to the rear end of the hollow member 25 from behind, and therefore, the movement of the cover member 26 relative to the hollow member 25 is restricted at least in the direction orthogonal to the front-rear direction.

In this embodiment, the cover member 26 has a recess 261. The recessed portion 261 opens forward with a portion of the front surface of the cover member 26 recessed rearward. In the present embodiment, for example, the recess 261 is slightly larger than the rear end of the functional part 21 so that the rear end of the functional part 21 can be accommodated in the recess 261.

The cover member 26 also has a pair of through holes 262 through which a pair of screws 281 are to be inserted. That is, the pair of screws 281 are screwed into the pair of screw holes 251 through the pair of through holes 262 to couple the cover member 26 to the hollow member 25.

Further, the pair of connection terminals 24 is fixed to the rear surface (back surface) of the cover member 26. The pair of connection terminals 24 are provided at the left and right direction opposite ends on the rear surface of the lid member 26 and are fixed to the lid member 26 with a pair of screws 283. Each of the connection terminals 24 includes a conductive metal plate such as a metal plate made of copper or a copper alloy. The rear ends of the pair of connection terminals 24 are bent inward, that is, in a direction in which the connection terminals 24 approach each other. Therefore, with the pair of connection terminals 24 inserted into the pair of connection ports 111 (see fig. 3), the second unit 2 is rotated clockwise in a front view to hook the pair of connection terminals 24 on the power receiving portion 11, thereby electrically and mechanically connecting the second unit 2 to the power receiving portion 11.

The front plate portion 23 has a pair of insertion holes 231, and the pair of insertion holes 231 are formed to have shapes and positions corresponding to those of the pair of insertion ports 211 of the functional portion 21. The pair of insertion holes 231 is open at a central portion of the front surface of the front plate portion 23 and penetrates the front plate portion 23 in the thickness direction (front-rear direction). Specifically, the pair of insertion holes 231 are formed to have the same shape and position as those of the pair of insertion ports 211, so that the insertion holes 231 overlap the pair of insertion ports 211 formed in the functional section 21 in a front view. Therefore, in order to connect the plug of the load 4 to the function section 21, the pair of insertion pieces 41 of the plug is inserted into the insertion port 211 through the pair of insertion holes 231. In a state where the pair of insertion pieces 41 are inserted into the pair of insertion holes 211 through the pair of insertion holes 231, the load 4 is electrically and mechanically connected to the function section 21.

The attachment cover 27 is attached to the front end of the hollow member 25 and has a function of fixing the functional portion 21 to the hollow member 25 (the circular portion 22). In the present embodiment, for example, the attachment cover 27 is made of metal and has a substantially circular shape in front view. In a front view, the attachment cover 27 has an outer periphery substantially corresponding to the inner periphery of the hollow member 25. Therefore, the attachment cover 27 is attached by fitting to the front end of the hollow member 25 from the front, and therefore, the movement of the attachment cover 27 relative to the hollow member 25 is restricted at least in the direction orthogonal to the front-rear direction.

Here, the attachment cover 27 has an attachment hole 271 penetrating the attachment cover 27 in the thickness direction (front-rear direction). Here, the attachment hole 271 is formed in most of the attachment cover 27 except for the outer peripheral portion of the attachment cover 27 in a front view in such a manner that the attachment cover 27 forms a frame body.

In the present embodiment, for example, in a front view, the attachment hole 271 has an inner peripheral edge substantially corresponding to an outer peripheral edge of the front end of the functional portion 21. Therefore, in a state where the attachment cover 27 and the functional part 21 are combined with each other, the front end of the functional part 21 protrudes forward from the front surface of the attachment cover 27 through the attachment hole 271 formed in the attachment cover 27.

The attachment cover 27 also has a pair of through holes 272 through which a pair of screws 282 are to be inserted through the pair of through holes 272. That is, the attachment cover 27 is joined to the hollow member 25 by screwing the pair of screws 282 into the pair of screw holes 251 through the pair of through holes 272.

In a state where the attachment cover 27 is joined to the hollow member 25, the attachment cover 27 fixes the functional portion 21 to the hollow member 25 (the circular portion 22). In the present embodiment, for example, the attachment cover 27 holds at least a part of the functional part 21 (the attachment piece 213 in the present embodiment) sandwiched between the attachment cover 27 and the pair of fixing parts 252 of the hollow member 25, thereby fixing the functional part 21 to the hollow member 25 (the circular part 22). Specifically, in a state where each of the attachment pieces 213 of the functional part 21 is fitted in a corresponding one of the fixing recesses 253 of the fixing portion 252, the attachment cover 27 presses the attachment piece 213 of the functional part 21 from the front, and therefore, the attachment cover 27 holds each of the attachment pieces 213 in the corresponding one of the fixing recesses 253. Thus, the functional portion 21 is fixed to the hollow member 25 (circular portion 22).

The functional portion 21, the circular portion 22 (the hollow member 25 and the lid member 26), the front plate portion 23, the pair of connection terminals 24, and the attachment cover 27 having the above-described configuration are combined with each other, thereby forming the second unit 2.

(3) Replacement example of second Unit

Next, an example of replacement of the second unit 2 in the wiring appliance system 10 according to the present embodiment will be described with reference to fig. 5. Fig. 5 is a view schematically illustrating an exchange example of the second unit 2 and shows the shape and the like of the first unit 1 exposed through the construction hole 33 in a correspondingly simplified manner.

In the present embodiment, a plurality of types of second units 201 to 207 may be mounted to the first unit 1. When the plurality of types of second cells 201 to 207 are not particularly distinguished from each other, each of the plurality of types of second cells 201 to 207 is simply referred to as "second cell 2". That is, in the wiring harness system 10 according to the present embodiment, the second unit 2 is mounted to the first unit 1, and therefore, the wiring harness system 10 is integrally attached to the construction object 3. Therefore, in the wiring tool system 10 according to the present embodiment, only the second unit 2 can be replaced with another second unit 2 while the first unit 1 is still fixed to the construction object 3. Therefore, in the wiring appliance system 10, for example, instead of the second unit 201 having a function as a receptacle as described above, mounting any one of the second units 202 to 207 to the first unit 1 enables the function of the wiring appliance to be freely changed. Therefore, in the wiring tool system 10, wiring tools having various functions can be realized.

That is, as shown in fig. 5, preparing a plurality of types of second units 2 enables the wiring appliance system 10 to realize functions as various wiring appliances. As the configuration relating to the electrical and mechanical connection of the first unit 1, the plural types of second units 202 to 207 adopt a configuration common to that of the second unit 201. The plural types of second cells 201 to 207 have the same shape and the same size in a front view. Thus, each second unit 2 is inserted into the first unit 1 and then rotated clockwise in front view relative to the first unit 1 to be mounted to the first unit 1.

In the example shown in fig. 5, the second unit 202 is a wiring appliance that includes a rotation operation type user interface such as a volume control knob, a rotary encoder, or a rotary switch and has a function as a load control device. The second unit 202 controls the load 4 by controlling the energization state of the load 4 such as a lighting fixture according to an operation given by a user and received by a user interface. The second unit 203 is a wiring tool having a function as a socket for a Universal Serial Bus (USB). The second unit 203 has a USB socket into which a USB plug of the load 4 can be inserted and connected, and the second unit 203 is configured to output a direct-current voltage of 5V to the load 4 via the USB plug.

The second unit 204 is a wiring tool having a function as a magnet type socket for attracting the plug by magnetic force. The second unit 204 is configured to attract the plug of the load 4 by the magnetic force of the magnet to supply alternating current or direct current to the load 4 via the plug. The second unit 205 is a wiring appliance that includes a motion sensor or a sensor for sensing brightness or the like and has a function as a load control device. The second unit 205 controls the energization state of the load 4 such as a lighting fixture according to the sensing result of the sensor, thereby controlling the load 4.

Further, the second unit 206 is a wiring appliance that includes a push button, seesaw (seeslow), or touch user interface and has a function as a switch device. The second unit 206 controls the load 4 by controlling the energization state of the load 4 such as a lighting fixture according to an operation given by a user and received by the user interface. Specifically, the second unit 206 includes: a plurality of (four in the present embodiment) user interfaces; a plurality of (four in the present embodiment) switches are provided as the functional units 21. Therefore, one second unit 206 can control a plurality of (four in the present embodiment) loads 4. Further, the second unit 207 is a wiring tool including a push button, seesaw, or touch user interface and having a function as a switch device. The second unit 207 controls the load 4 by controlling the energization state of the load 4 such as a lighting fixture according to an operation given by a user and received by the user interface.

In summary, in the wiring harness system 10 according to the present embodiment, the second unit 2 as a wiring harness is removably mounted to the first unit 1 to be fixed to the construction object 3. Therefore, removing the second unit 2 from the first unit 1 only enables the second unit 2 to be removed from the construction object 3. At this time, the first unit 1 including the power receiving portion 11 for being supplied with power remains at the construction target 3, and therefore, replacement of the second unit 2 as a wiring tool or the like can be performed without changing the wiring connection of the power receiving portion 11. Therefore, when a plurality of types of second units 2 as described above are prepared, replacing the second units 2 enables the wiring appliance system 10 to realize the functions of various wiring appliances.

Further, the first unit 1 is shared by a plurality of types of second units 2, and therefore, when the type of wiring appliance as the whole of the wiring appliance system 10 is changed, the first unit 1 can also be reused. In addition, not only when an already set second unit 2 is replaced with another second unit 2, but also when one or more second units 2 are newly set, various types of second units 2 as described above may be employed.

Further, in the wiring appliance system 10 according to the present embodiment, the

devices

601 and 602 instead of the second unit 2 may be installed in the installation space 12, and the

devices

601 and 602 are operated by the power supplied from the first unit 1. In fig. 5, a plurality of types (two types in the present embodiment) of

apparatuses

601 and 602 are shown, but when the plurality of types of

apparatuses

601 and 602 are not particularly distinguished from each other, each of the plurality of types of

apparatuses

601 and 602 is simply referred to as "apparatus 6". That is, in the wiring harness system 10 according to the present embodiment, the second unit 2 is mounted to the first unit 1, whereby the wiring harness system 10 is integrally attached to the construction object 3. Therefore, in the wiring harness system 10 according to the present embodiment, the second unit 2 can be replaced with the equipment 6 in a state where the first unit 1 is still fixed to the construction object 3.

Here, also for the apparatus 6, preparing a plurality of types of

apparatuses

601 and 602 as shown in fig. 5 enables the wiring appliance system 10 to realize the functions of the various apparatuses 6. As the configuration related to the electrical and mechanical connection of the first unit 1, the plural types of

devices

601 and 602 adopt a configuration common to that of the second unit 201. In the front view, the plural types of

devices

601 and 602 have the same shape and the same size as the second unit 2. Thus, each device 6 is inserted into the first unit 1 and then rotated clockwise in front view relative to the first unit 1 to be mounted to the first unit 1.

In the example shown in fig. 5, the device 601 has a function as a lighting device (including a down lamp, an emergency lamp, a foot lamp, and the like) configured to output light. The device 601 is powered from the first unit 1 to turn on its light source to illuminate its surroundings. The device 602 has a function as a sound output device (including a speaker and an AI speaker) configured to output sound (including voice, beep, melody, and the like). The device 602 is powered from the first unit 1 to convert the electric signal into sound, thereby outputting the sound.

Note that the device 6 shown in fig. 5 is only an example, and components such as a display, a communication device, or a measurement device may be employed as the device 6 in addition to the illumination device and the sound output device.

(4) Modification example

The first embodiment is one of various embodiments of the present disclosure. The first embodiment can be variously modified in accordance with design or the like as long as the object of the present disclosure can be achieved. The drawings to which the disclosure refers are schematic drawings. That is, the proportions of the sizes (including thicknesses) of the respective constituent elements shown in the drawings do not always reflect their actual size proportions.

A modification of the first embodiment will be described below. The modifications described below can be appropriately combined and used. The same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment hereinafter, and the description thereof is omitted accordingly.

(4.1) first modification

As shown in fig. 6A to 6C, the wiring harness system 10A according to the first modification differs from the wiring harness system 10 of the first embodiment in the shape of the installation space 12. In fig. 6A to 6C, the second unit 2 is indicated by an imaginary line (long-dashed double-short-dashed line). In fig. 6A to 6C, for example, the shape and the like of the first unit 1 exposed through the construction hole 33 are shown in a correspondingly simplified manner.

In the present modification, instead of the hook-shaped ceiling junction box, the first unit 1 employs, for example, a plug-in connector such as a Type-I socket as a component for electrically and mechanically connecting the second unit 2. Specifically, the front surface of the first unit 1 has insertion holes 142A, each insertion hole 142A forming an I-type receptacle. Thus, the second unit 2 has a rear surface (back surface) from which a plurality of blades project rearward, and the blades are inserted into the insertion hole 142A from the front, and thus, the second unit 2 is electrically and mechanically connected to the power receiving portion 11 of the first unit 1. Therefore, in the present modification, the mounting of the second unit 2 to the mounting space 12 involves linear movement of the second unit 2 to the first unit 1, but is unlikely to involve rotation of the second unit 2 relative to the first unit 1.

Therefore, when it is unlikely that rotation of the second unit 2 is involved, the shape of the mounting space 12 is not limited to a rotationally symmetrical shape such as a circular shape, but may take any suitable shape. In the example shown in fig. 6A, the installation space 12 is square-shaped in a front view. In this case, the second unit 2 also employs a member that is square in front view, instead of the circular portion 22. In the example shown in fig. 6B, the installation space 12 is substantially triangular in shape in front view. In this case, the second unit 2 also employs a member that is triangular in front view, instead of the circular portion 22. In the example shown in fig. 6C, the installation space 12 is in an elliptical shape in a front view. In this case, the second unit 2 also employs a member having an elliptical shape in front view, instead of the circular portion 22.

Therefore, according to the first modification, the installation of the second unit 2 in the installation space 12 is less likely to involve relative rotation of the second unit 2 with respect to the first unit 1, and therefore, the orientation of the second unit 2 is easily determined.

(4.2) second modification

As shown in fig. 7A to 7C, in the wiring appliance system 10B according to the second modification, the position of the second unit 2 mounted in the mounting space 12 is variable. In the present disclosure, "position" refers to the orientation and position of the second unit 2 in a state where the second unit 2 is fixed to the construction object 3. In fig. 7A, the second unit 2 is indicated by an imaginary line (long dashed line and double short dashed line). In fig. 7A to 7C, for example, the shape and the like of the first unit 1 exposed through the construction hole 33 are shown in a correspondingly simplified manner.

In the present modification, instead of the hook-shaped ceiling junction box, the first unit 1 employs a plug-in connector such as a headphone jack (phone jack) as a part for electrically and mechanically connecting the second unit 2. Specifically, the first unit 1 has a front surface, and the front surface has a through hole 142B formed in a central portion thereof. The through hole 142B forms a bipolar earphone jack. Thus, the second unit 2 has a rear surface (back surface) from which an earphone plug (phone plug) protrudes rearward and is inserted into the through hole 142B from the front, whereby the second unit 2 is electrically and mechanically connected to the power receiving portion 11 of the first unit 1. Therefore, in the present modification, the mounting of the second unit 2 to the mounting space 12 involves linear movement of the second unit 2 to the first unit 1, but is unlikely to involve rotation of the second unit 2 relative to the first unit.

Further, in the present modification, the through hole 142B is provided in the central portion of the front surface of the first unit. According to such a configuration, in a state where the headphone plug is inserted into the through hole 142B (headphone jack), as shown in fig. 7B and 7C, the second unit 2 can be rotated with respect to the first unit 1. For example, rotating the second unit 2 relative to the first unit 1 in the direction indicated by arrow a3 (see fig. 7C) changes the position of the second unit 2. In the example shown in fig. 7C, the second unit 2 is rotated clockwise by 90 degrees in front view from the example of fig. 7B, and thus, the pair of insertion holes 231 are aligned in the up-down direction.

Therefore, according to the second modification, the position of the second unit 2 can be changed in a state where the second unit 2 is still mounted in the mounting space 12 of the first unit 1.

(4.3) third modification

As shown in fig. 8A, in the wiring appliance system 10C according to the third modification, the first unit 1 includes a mounting frame 74. The mounting frame 74 is, for example, a mounting frame of an interchangeable large square boss type wiring appliance standardized according to japanese industrial standards. That is, in the present modification, the wiring harness system 10C is fixed to the construction object 3 by the mounting frame 74.

In the example shown in fig. 8A, the switch box 13 of the first unit 1 is fixed to the mounting frame 74. Further, the decorative frame 75 may be attached to the mounting frame 74 directly or indirectly. Therefore, in a state where the wiring harness system 10C is fixed to the construction object 3, the periphery of the second unit 2 can be covered with the decorative frame 75, which improves the appearance of the wiring harness system 10C.

(4.4) fourth modification

As shown in fig. 8B, a wiring appliance system 10D according to a fourth modification includes a first unit 1 and a second unit 2 electrically connected to each other via a cable 71. The cable 71 has one end provided with a connector 72. The other end of the cable 71 is located on the opposite side of the connector 72 and connected to the second unit 2. Thus, the connector 72 is connected to the first unit 1 and the first unit 1 is electrically connected to the second unit 2 via the cable 71. In the present variant, the electrical connection between the first unit 1 and the second unit 2 is achieved by means other than mechanical connection (bonding).

In addition, in the present modification, at least one of the first unit 1 and the second unit 2 includes the power conversion portion 73. The power conversion unit 73 converts power. That is, the wiring harness system 10D performs power conversion by the power conversion section 73 provided to the first unit 1 and/or the second unit 2. Reference to "power conversion" in this disclosure includes, for example, conversion of ac power to dc power, conversion of dc power to ac power, and voltage conversion. The power conversion section 73 is constituted by a circuit configured to perform the above-described conversion. In the present modification, the power conversion portion 73 is, for example, an AC-DC converter configured to convert 100V of alternating-current power into, for example, 5V, 12V, 24V, or 48V of direct-current power.

In particular, in the present modification, the power conversion portion 73 is provided to the first unit 1. That is, the power conversion portion 73 is accommodated in the switch box 13 of the first unit 1. The wiring 51 to be introduced into the first unit 1 is connected to the power conversion section 73. In this state, the connector 72 is connected to the power conversion section 73 and the second unit 2 is connected to the power conversion section 73 of the first unit 1 via the cable 71.

(4.5) fifth modification

As shown in fig. 8C, the wiring instrument system 10E according to the fifth modification includes a power conversion portion 73 provided as a separate member from the first unit 1. In this modification, the power conversion section 73 is electrically connected to the first unit 1 via the wiring 51. Further, the power conversion portion 73 is electrically connected to a power source such as a system power source or a distributed power source through another wiring 52 via an electric facility such as the distribution board 53 (refer to fig. 8D).

That is, in the present modification, the power conversion section 73 has a housing separate from the first unit 1, and is placed separately from the first unit 1. Such a power conversion portion 73 is provided at a suitable position such as a rear surface of the wall panel 31 (rear wall), a rear surface of the ceiling (under wall), or under the floor. Therefore, providing the power conversion section 73 separately from the first unit 1 enables the size of the first unit 1 to be reduced.

In the example shown in fig. 8C, the first unit 1 employs a hook-shaped ceiling junction box as a component for electrical and mechanical connection of the second unit 2. However, this should not be construed as limiting. For example, the first unit 1 and the second unit 2 may be electrically connected to each other, for example, via the cable 71 in the same manner as the fourth modification.

(4.6) sixth modification

As shown in fig. 8D, the wiring appliance system 10F according to the sixth modification includes a power conversion portion 73 arranged in the distribution board 53. In this modification, the power conversion section 73 is electrically connected to the first unit 1 via the wiring 51. Further, in the cabinet of the distribution board 53, the power conversion portion 73 is electrically connected to, for example, a branch breaker.

That is, in the present modification, the power conversion section 73 has a housing separate from the first unit 1 and is placed separately from the first unit 1. Therefore, also in the present modification, providing the power conversion section 73 separately from the first unit 1 in the same manner as in the fourth modification enables downsizing of the first unit 1.

In the example shown in fig. 8D, the first unit 1 employs a hook-shaped ceiling junction box as a component for electrical and mechanical connection of the second unit 2. However, this should not be construed as limiting. For example, the first unit 1 and the second unit 2 may be electrically connected to each other, for example, via the cable 71 in the same manner as the fourth modification.

(4.7) other modifications

In the wiring appliance system 10, the method for supplying power from the first unit 1 to the second unit 2 is not limited to supplying power via wiring as described above, but a non-contact power supply system may be employed, for example. In this case, for example, power is transmitted in a non-contact manner from the power supply coil provided in the first unit 1 to the power receiving coil provided in the second unit 2.

Further, the first unit 1 and the second unit 2 may have a function of communicating with each other, and information may be transmitted between the first unit 1 and the second unit 2. In this case, the communication scheme between the first unit 1 and the second unit 2 may be wired communication including Power Line Communication (PLC) or wireless communication. In addition to wireless communication using radio waves as a medium, wireless communication used herein includes communication based on electromagnetic coupling and optical communication using light as a communication medium.

Further, the wiring appliance system 10 of the first embodiment includes only two units, i.e., the first unit 1 and the second unit 2, but this should not be construed as a limitation. For example, the wiring harness system 10 may include more than three units. For example, the wiring harness system 10 may include a third unit in addition to the first unit 1 and the second unit 2. In this case, the third unit may be attached to the first unit 1 or the second unit 2. Furthermore, the third unit may function as an accessory for mounting the second unit 2 to the first unit 1, in which case the second unit 2 is indirectly mounted to the first unit 1 via the third unit.

In the wiring appliance system 10 of the first embodiment, the first unit 1 is arranged on the rear surface side of the wall plate 31 to construct an embedded wiring appliance, but this should not be construed as a limitation. For example, the first unit 1 may constitute an exposed wiring tool. That is, disposing first unit 1 on the front surface side of wall plate 31 can configure an exposed wiring tool disposed on the front surface side of wall plate 31 as wiring tool system 10 as a whole. In this case, the switch case 13 of the first unit 1 is not an insertion-type switch case but an exposure-type switch case.

Further, in order to mount the second unit 2 to the installation space 12, the direction of the linear movement of the second unit 2 to the first unit 1 is not limited to the front-rear direction. For example, in order to mount the second unit 2 to the installation space 12, the direction of the linear movement of the second unit 2 to the first unit 1 may be an up-down direction or a left-right direction.

Further, the shape of the mounting space 12 is not limited to the shape described in the first modification, but any appropriate shape such as a polygon may be adopted in addition to the square and the triangle.

Further, the power conversion section 73 is not limited to the configuration provided to the first unit 1 as in the fourth modification, but for example, the power conversion section 73 may be provided to the second unit 2. Further, the power conversion section 73 may be distributed in the first unit 1 and the second unit 2.

Further, the wiring appliance system 10 serving as the socket is not limited to a socket without a ground electrode, but may be a socket with a ground electrode, or may be a socket for, for example, 200-V alternating current or direct current. In addition, the wiring appliance system 10 serving as a receptacle is not limited to an a-type plug having the insertion piece 41 formed as a blade, but may be, for example, a B-type or C-type plug having the insertion piece 41 formed as a pin. In addition, the wiring appliance system 10 serving as the outlet is not limited to a single outlet, but may be, for example, a double outlet or a triple outlet to which two plugs can be connected simultaneously.

Further, the plug to be connected to the wiring appliance system 10 serving as the outlet is not limited to the plug provided to the end of the cable of the load 4, but may be a plug of the load 4 such as a charger including a housing and a plug which are integrated with each other.

Furthermore, the wiring harness system 10 may further include, for example: a switch configured to switch the pair of loads 4 between an energized state and a non-energized state; a protection circuit configured to sense an abnormal current such as an overcurrent or a leakage current or an overheat so as to interrupt the energization of the load 4. The switch and protection circuit may be provided to the first unit 1 or the second unit 2.

(second embodiment)

As shown in fig. 9A and 9B, the wiring harness system 10G according to the present embodiment differs from the wiring harness system 10 according to the first embodiment in that the first unit 1 includes a plurality of installation spaces 12. The same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment hereinafter, and the description thereof is omitted accordingly. In fig. 9A, the second unit 2 is indicated by an imaginary line (long dashed line and double short dashed line).

In the present embodiment, the first unit 1 includes three installation spaces 12, as shown in fig. 9A. Each installation space 12 can be provided with one second unit 2. Thus, a maximum of three second units 2 may be mounted to one first unit 1.

In the example shown in fig. 9A, a plurality of (three in the present embodiment) mounting spaces 12 are arranged to be aligned in the left-right direction. Each of the three mounting spaces 12 has three through holes 142G for forming an I-type socket. That is, in the same manner as the first modification of the first embodiment, the present embodiment adopts a configuration in which the mounting of the second unit 2 to the mounting space 12 is unlikely to involve relative rotation of the second unit 2 with respect to the first unit 1.

As shown in fig. 9B, in the wiring appliance system 10G according to the present embodiment, a plurality of (three in the present embodiment) second units 2 may be mounted to one first unit 1. As a result, a plurality of (three in the present embodiment) second units 2 are arranged to be aligned with each other. In the example shown in fig. 9B, the plurality of types of second units 2 described in the first embodiment are configured in a mixed manner. Specifically, the second unit 206 serving as a switching device, the second unit 201 serving as a socket, and the second unit 204 serving as a magnet-type socket (see fig. 5) are arranged to be aligned with each other.

In the present embodiment, the first unit 1 is shared by a plurality of (three in the present embodiment) second units 2, and therefore, the configuration can be simplified as compared with the case where the first unit 1 is provided for each second unit 2.

Further, the first unit 1 includes at least a plurality of installation spaces 12 and is not limited to having a configuration in which a plurality of different types of second units 2 are installed as shown in fig. 9B. Alternatively, for example, a plurality of the same type of second units 2 may be installed. In addition, the number of the installation spaces 12 is not limited to three, but the first unit 1 may have, for example, two installation spaces 12 or four or more installation spaces 12.

The plurality of installation spaces 12 need not be arranged in a straight line in the left-right direction, but may be arranged in a vertical direction, for example, or may be arranged in an L-shape.

Between the plurality of installation spaces 12, a partition may be further provided. When the partition portion is provided, an insulation distance (creepage distance) between the adjacent installation spaces 12 can be ensured, and for example, when the strong electric system second unit 2 and the weak electric system second unit 2 are adjacent to each other, a mutual influence is less likely to be generated therebetween. Conversely, when no partition is provided, one large-sized second unit 2 may be installed by using a plurality of installation spaces 12.

The configurations (including the modifications) described in the second embodiment can be combined and adopted in accordance with the various configurations (including the modifications) described in the first embodiment.

(third embodiment)

As shown in fig. 10A and 10B, the wiring fixture system 10H according to the present embodiment differs from the wiring fixture system 10 according to the first embodiment in that the first unit 1 includes a decorative plate 17 disposed around the second unit 2 in a front view. The same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment hereinafter, and the description thereof is omitted accordingly.

That is, in the present embodiment, the first unit 1 includes the decorative panel 17 shown in fig. 10A. The decorative panel 17 is provided on the front surface side of the wall panel 31. The decorative panel 17 has a substantially square shape slightly larger than the second unit 2 (front panel portion 23) in front view. In the present embodiment, for example, the decorative plate 17 is integrated with the insertion guide 15 as shown in fig. 10B. Specifically, the insertion guide 15 extends to the front surface of the wall plate 31 through the construction hole 33, and the decorative plate 17 is integrated with the insertion guide 15 in such a manner that the decorative plate 17 protrudes laterally (upward, downward, leftward, and rightward) from the front end of the insertion guide 15.

In a state where the wiring harness system 10H according to the present embodiment is attached to the construction object 3 in its entirety, the rear surface (back surface) of the decorative plate 17 of the first unit 1 is in contact with the surface of the wall plate 31 around the construction hole 33 from the front. Further, in the wiring harness system 10H, the amount of protrusion from the surface of the wall plate 31 is slightly larger at the second unit 2 (front plate portion 23) than at the decorative plate 17.

Therefore, in a state where the wiring harness system 10H is fixed to the construction object 3, the periphery of the second unit 2 can be covered with the decorative plate 17, which improves the appearance of the wiring harness system 10H.

Further, the shape of the decorative plate 17 is not limited to the substantially square shape, but may take an appropriate shape such as a rectangular shape, a triangular shape, or a circular shape, for example.

The configurations (including the modifications) described in the third embodiment can be combined with the various configurations (including the modifications) described in the first or second embodiment.

(fourth embodiment)

As shown in fig. 11A to 11C, the wiring fixture system 10I according to the present embodiment is different from the wiring fixture system 10 according to the first embodiment in that a lock portion 8 is provided. The same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment hereinafter, and the description thereof is omitted accordingly.

That is, at least one of the first unit 1 and the second unit 2 has the locking portion 8. The lock portion 8 is configured to be switchable between a locked state in which the second unit 2 is restricted from being removed from the first unit 1 and an unlocked state in which the restriction is released, in a state in which the second unit 2 is mounted to the mounting space 12. That is, the lock portion 8 is configured to be switchable between at least two states, i.e., a locked state and an unlocked state. When the locking portion 8 is in the locked state, the second unit 2 is restricted from being removed from the first unit 1, and therefore, in order to remove the second unit 2 from the first unit 1, the locking portion 8 must be switched to the unlocked state.

In the present embodiment, as shown in fig. 11B, the lock portion 8 includes a lock groove 81 formed in the first unit 1 and a lock pin 82 provided to the second unit 2. Specifically, the locking groove 81 is formed in, for example, a part of the front surface of the insertion guide 15 of the first unit 1. The lock pin 82 is held by the second unit 2 in a state where the lock pin 82 penetrates the front plate portion 23 of the second unit 2 in a thickness direction (front-rear direction) defined with respect to the front plate portion 23. The lock pin 82 is movable relative to the front plate portion 23 in a thickness direction (front-rear direction) defined relative to the front plate portion 23.

That is, as described in the first embodiment, mounting the second unit 2 to the first unit 1 involves at least rotation of the second unit 2 relative to the first unit 1. Therefore, as shown in fig. 11A, in a state where the second unit 2 is attached to the first unit 1, the relative rotation of the second unit 2 with respect to the first unit 1 is restricted, thereby restricting the removal of the second unit 2 from the first unit 1. In the present embodiment, as shown in fig. 11B, the state in which the lock pin 82 is not inserted into the lock groove 81 corresponds to the unlocked state of the lock portion 8, and as shown in fig. 11C, the state in which the lock pin 82 is inserted into the lock groove 81 corresponds to the locked state of the lock portion 8. In summary, when the lock portion 8 is in the locked state, the locking pin 82 in the locking groove 81 restricts relative rotation of the second unit 2 with respect to the first unit 1, thereby restricting the second unit 2 from being removed from the first unit 1.

This embodiment also includes a switch 83 disposed in the lock groove 81. The switch 83 is a switch for controlling (turning on/off) the power supply from the first unit 1 to the second unit 2. Specifically, the switch 83 is a normally-off type push-button switch of a momentary type, and power is supplied from the first unit 1 to the second unit 2 only when the switch 83 is turned on. Therefore, only in the locked state where the locking pin 82 is in the locking groove 81, the switch 83 is pushed by the locking pin 82 to be turned on, and power is supplied from the first unit 1 to the second unit 2. In contrast, when the lock portion 8 is shifted to the unlock state, the switch 83 is shifted to the off state, and therefore, the power supply from the first unit 1 to the second unit 2 is stopped.

In short, in the present embodiment, when the lock portion 8 is switched from the locked state to the unlocked state, the power supply from the first unit 1 to the second unit 2 is automatically stopped, and therefore, the lock portion 8 cannot be brought into the unlocked state while the power supply from the first unit 1 to the second unit 2 is continued. In other words, in a state where power is supplied from the first unit 1 to the second unit 2, the lock portion 8 is restricted from being switched from the locked state to the unlocked state. This prevents a malfunction that occurs when the second unit 2 is removed from the first unit 1 in a state where power is supplied from the first unit 1 to the second unit 2.

Further, at least one of the first unit 1 and the second unit 2 has the lock portion 8, and for example, only the first unit 1 (or the second unit 2) may have the lock portion 8.

Further, in the state where power is supplied from the first unit 1 to the second unit 2, the restriction of the switching of the locking portion 8 from the locked state to the unlocked state is not a necessary configuration of the wiring instrument system 10I. That is, in a state where power is supplied from the first unit 1 to the second unit 2, the lock portion 8 may be switched from the locked state to the unlocked state.

The structure (including the modifications) described in the fourth embodiment can be adopted in combination with the various structures (including the modifications) described in the first to third embodiments.

(fifth embodiment)

As shown in fig. 12A to 12C, the wiring fixture system 10J according to the present embodiment is different from the wiring fixture system 10 according to the first embodiment in that the first unit 1 has a plurality of connection portions 18 for electrically connecting the second unit 2. The same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment hereinafter, and the description thereof is omitted accordingly. In fig. 12A and 12C, the second unit 2 attached to the first unit 1 is indicated by an imaginary line (long dashed line and double short dashed line). Further, in fig. 12B and 12C, the connection terminal 24 and the like inserted into the connection portion 18 are schematically illustrated.

The "connection portion" used in the present disclosure refers to a member for electrically connecting the second unit 2, and in the first embodiment, the connection portion has a pair of through holes 142 formed in the inner lid 14 and a pair of connection ports 111 formed in the power receiving portion 11. In the present embodiment, as shown in fig. 12A, the first unit 1 includes: a pair of first connection ports 181 forming a type of socket that can be generally used as an a-type socket and a C-type socket; three second connection ports 182 forming an I-shaped socket. The pair of first connection ports 181 forms the connection portion 18, and the three second connection ports 182 form the connection portion 18. In other words, the first unit 1 includes the connection portion 18 having the pair of first connection ports 181 and the connection portion 18 having the three second connection ports 182.

In the present embodiment, a plurality of (two in the present embodiment) connecting portions 18 are arranged in one installation space 12. Specifically, the two connection portions 18 are arranged to be aligned in the up-down direction in the installation space 12.

Further, the plurality of (two in the present embodiment) connecting portions 18 include different types of first and second connecting portions. In the present embodiment, the connection portion 18 having the pair of first connection ports 181 is a "first connection portion", and the connection portion 18 having the three second connection ports 182 is a "second connection portion". That is, the plurality of (two in the present embodiment) connecting portions 18 arranged in one installation space 12 are of different types. The "types" of the connection portions 18 mentioned in the present disclosure include: for example, the socket type; whether the connection part is a USB; strong/weak electrical systems. That is, in the present embodiment, the first connection portion 18 is a type socket serving as an a-type socket and a C-type socket, and the second connection portion 18 is an I-type socket, and therefore, the first connection portion 18 and the second connection portion 18 are different in type.

Therefore, only any one of the plurality of (two in the present embodiment) connection portions 18 is used for the electrical connection of the second unit 2, depending on the type of the second unit 2 mounted to the first unit 1. For example, as shown in fig. 12B, the second unit 2 is mounted to the first unit 1 using the first connection parts 18, and the connection terminals 24 of the second unit 2 are inserted only into the first connection parts 18 (the pair of first connection ports 181) among the plurality of connection parts 18. Therefore, in the example shown in fig. 12B, the second connection portions 18 (the three second connection ports 182) are not used.

In the wiring harness system 10J according to the present embodiment, the second unit 2 can be mechanically held by such an unused connection portion 18. That is, in the present embodiment, among the plurality of connection parts 18, some of the connection parts 18 for supplying power supply the second unit 2 mounted in the mounting space 12. Among the plurality of connection parts 18, one or more connection parts 18 other than the at least one connection part 18 for supplying power mechanically hold one or more second units 2 installed in the installation space 12.

For example, as shown in fig. 12C, it is assumed that the second unit 2 is mounted to the first unit 1 using the second connection portion 18 as the connection portion 18 for power supply. In this case, the connection terminals 24 of the second unit 2 are inserted into the second connection portions 18 (the three second connection ports 182) for power supply among the plurality of connection portions 18. In contrast, the connection portions 18 other than the connection portion 18 for supplying power, that is, the first connection portion 18 (the pair of first connection ports 181) are used to mechanically hold the second unit 2. Specifically, the second unit 2 includes a dummy terminal 29 independent from the connection terminal 24, and the dummy terminal 29 is inserted into the first connection portion 18 (the pair of first connection ports 181). The dummy terminal 29 is used only for mechanically holding the second unit 2, and is thus electrically disconnected from the functional portion 21 of the second unit 2 in the same manner as the connection terminal 24. The dummy terminal 29 may be made of an electrically insulating material.

Therefore, the connecting portion 18 not used for power supply is used to mechanically hold the second unit 2, thereby improving the strength of holding the second unit 2 by the first unit 1.

Furthermore, according to the second unit 2, a plurality of connection portions 18 are available for power supply.

The configurations (including modifications) described in the fifth embodiment can be adopted in combination with the various configurations (including modifications) described in the first to fourth embodiments.

(conclusion)

As described above, the wiring appliance system (10, 10A to 10J) of the first aspect includes the first unit (1) and the second unit (2). The first unit (1) is configured to be fixed to a construction object (3). The second unit (2) is configured to be removably mounted to the first unit (1). The first unit (1) comprises a power receiving portion (11) and at least one installation space (12). The power receiving portion (11) is configured to be supplied with power. At least one of the installation spaces (12) is a space in which the second units (2) are to be installed one by one. The second unit (2) is a wiring tool including a function unit (21). The function section (21) is configured to perform supply of electric power to at least one of the load (4) and the control load (4). The first unit (1) is configured to supply power to the second unit (2).

According to this aspect, removing the second unit (2) as a wiring tool from the first unit (1) enables only the second unit (2) to be removed from the construction object (3). At this time, the first unit (1) including the power receiving portion (11) for being supplied with power remains at the construction object (3), and therefore, replacement of the second unit (2) as a wiring tool or the like may not change the connection of the wiring (51) to the power receiving portion (11). Therefore, according to the wiring tool system (10, 10A to 10J), it is possible to reduce the time and effort required for replacement of the wiring tool and the like.

In a wiring harness system (10, 10A to 10J) of a second aspect with reference to the first aspect, the second unit (2) includes a round portion (22) having a round shape in a front view.

According to this aspect, rotating the second unit (2) around the center axis of the circular portion (22) changes the position of the second unit (2), and therefore, the orientation of the second unit (2) can be determined based on, for example, the convenience of the user.

In the wiring harness system (10, 10A to 10J) of the third aspect with reference to the first or second aspect, the at least one installation space (12) includes a plurality of installation spaces (12), and the first unit (1) includes a plurality of installation spaces (12).

According to this aspect, a plurality of second units (2) may be mounted to one first unit (1).

In a wiring harness system (10, 10A to 10J) of a fourth aspect with reference to any one of the first to third aspects, the first unit (1) has a recess (121) in at least one mounting space (12). At least a portion of the second unit (2) is received in the recess.

According to this aspect, at least a part of the second unit (2) is accommodated in the recess (121) to reduce the amount of protrusion of the second unit (2) from the construction object (3).

In the wiring appliance system (10, 10A to 10J) of the fifth aspect referring to any one of the first to fourth aspects, in the at least one installation space (12), instead of the second unit (2), an apparatus (6) configured to operate by receiving electric power supplied from the first unit (1) may be installed.

This aspect enables the equipment (6) configured to be operated by the electric power supplied from the first unit (1) to be installed in a simplified manner with improved efficiency.

In a wiring appliance system (10, 10A to 10J) of a sixth aspect with reference to any one of the first to fifth aspects, the first unit (1) includes a switch box (13). The switch box (13) is configured to be fixed to a construction object (3). The switch box (13) has an introduction section (131) through which the wiring (51) is introduced.

According to this aspect, the wiring (51) will be connected to the first unit (1) within the switch box (13).

In a wiring harness system (10, 10A to 10J) of a seventh aspect referring to any one of the first to sixth aspects, the mounting of the second unit (2) in the at least one mounting space (12) involves linear movement of the second unit (2) to the first unit (1).

According to this aspect, a relatively simple operation enables the second unit (2) to be mounted to the first unit (1).

In the wiring harness system (10, 10A to 10J) of an eighth aspect with reference to any one of the first to seventh aspects, the mounting of the second unit (2) in the at least one mounting space (12) involves rotation of the second unit (2) relative to the first unit (1).

In a wiring fixture system (10, 10A to 10J) of a ninth aspect referring to any one of the first to eighth aspects, at least one of the first unit (1) and the second unit (2) has a lock portion (8). The locking portion (8) is switchable between a locked state and an unlocked state. The locked state is a state in which a restriction is imposed on removal of the second unit (2) from the first unit (1) in a state in which the second unit (2) is mounted to the at least one mounting space (12). The unlocked state is a state in which the restriction is released.

According to this aspect, it is unlikely that the second unit (2) will be removed from the first unit (1) without the user taking his or her mind.

In a wiring instrument system (10, 10A to 10J) of a tenth aspect referring to the ninth aspect, the lock portion (8) is restricted from being switched from the locked state to the unlocked state in a state where power is supplied from the first unit (1) to the second unit (2).

This aspect prevents a malfunction that occurs when the second unit (2) is removed from the first unit (1) in a state where power is supplied from the first unit (1) to the second unit (2).

In the wiring appliance system (10, 10A to 10J) of an eleventh aspect referring to any one of the first to tenth aspects, the first unit (1) includes a decorative plate (17) arranged around the second unit (2) in a front view.

According to this aspect, the peripheral portion of the second unit (2) is covered with the decorative plate (17), thereby improving the appearance of the wiring appliance system.

In the wiring appliance system (10, 10A to 10J) of the twelfth aspect referring to any one of the first to eleventh aspects, at least one of the first unit (1) and the second unit (2) includes a power conversion section (73) configured to convert electric power.

According to this aspect, the power converted by the power conversion section (73) can be supplied to the second unit (2) or the load (4).

In a wiring instrument system (10, 10A to 10J) of a thirteenth aspect with reference to the twelfth aspect, a power conversion section (73) is provided to the first unit (1).

According to this aspect, the power converted by the power conversion section (73) can be supplied to the second unit (2).

In the wiring appliance system (10, 10A to 10J) of the fourteenth aspect referring to any one of the first to thirteenth aspects, the position of the second unit (2) is variable in a state where the second unit (2) is mounted to the at least one mounting space (12).

According to this aspect, the position of the second unit (2) can be changed in a state where the second unit (2) is mounted to the at least one mounting space (12), and thus, the orientation of the second unit (2) can be determined based on, for example, the convenience of the user.

In a wiring fixture system (10, 10A to 10J) of a fifteenth aspect with reference to any one of the first to fourteenth aspects, the first unit (1) includes a plurality of connection portions (18) for electrically connecting the second unit (2).

According to this aspect, a plurality of second cells (2) may be electrically connected to one first cell (1).

In a wiring harness system (10, 10A to 10J) of a sixteenth aspect referring to the fifteenth aspect, a plurality of connection portions (18) are provided in at least one installation space (12), the at least one installation space (12) including only one installation space (12).

According to this aspect, a plurality of types of second units (2) having different connection schemes to the connection portion (18) can be installed in one installation space (12).

In a seventeenth aspect of the wiring harness system (10, 10A to 10J) referring to the fifteenth or sixteenth aspect, the plurality of connection portions (18) include different types of first connection portions (18) and second connection portions (18).

According to this aspect, it is possible to mount a plurality of types of second units (2) having different connection schemes to the connection portion (18) to the first unit (1).

In the wiring appliance system (10, 10A to 10J) of the eighteenth aspect referring to any one of the fifteenth to seventeenth aspects, among the plurality of connection portions (18), some of the connection portions (18) for supplying power supply power to the second unit (2) mounted to the at least one mounting space (12). Among the plurality of connecting parts (18), one or more connecting parts (18) other than the at least one connecting part (18) for supplying power mechanically hold the second unit (2) mounted to the at least one mounting space (12).

According to this aspect, one or more connections (18) other than the at least one connection (18) for supplying power may be used to improve the mechanical strength of holding the second unit (2).

The unit device according to the nineteenth aspect is configured to function as the first unit (1) or the second unit (2) by the wiring harness system (10, 10A to 10J) according to any one of the first to eighteenth aspects.

According to this aspect, removing the second unit (2) as a wiring tool from the first unit (1) enables only the second unit (2) to be removed from the construction object (3). At this time, the first unit (1) including the power receiving portion (11) for being supplied with power remains at the construction object (3), and therefore, replacement or the like of the second unit (2) as a wiring tool is possible without changing the connection of the wiring (51) to the power receiving portion (11). Therefore, according to the unit device, time and effort required for replacement of the wiring tool and the like can be reduced.

The configurations according to the second to eighteenth aspects are not essential configurations of the wiring harness system (10, 10A to 10J), and thus can be omitted.

List of reference numerals

1 first unit

2 second unit

3 objects of construction

4 load

6 device

8 locking part

10. 10A to 10J wiring tool system

11 power receiving portion

12 installation space

13 switch box

17 decorative board

18 connecting part

21 functional part

22 circular part

51 wire harness

73 power conversion unit

121 recess

131 lead-in part

Claims

1. A wiring harness system comprising:

a first unit configured to be fixed to a construction object; and

a second unit configured to be removably mounted to the first unit,

the first unit includes:

a power receiving portion configured to be supplied with power; and

at least one installation space in which the second units are to be installed one by one,

the second unit is a wiring appliance having a functional section configured to perform at least one of supply of electric power to a load and control of the load,

the first unit is configured to supply power to the at least one second unit.

2. The wiring appliance system according to claim 1,

the at least one second cell includes a rounded portion having a rounded shape in a front view.

3. The wiring appliance system according to claim 1 or 2,

the first unit includes a plurality of the installation spaces.

4. The wiring appliance system according to any one of claims 1 to 3,

The first unit has a recess in the at least one mounting space, and at least a portion of the at least one second unit is received in the recess.

5. The wiring appliance system according to any one of claims 1 to 4,

in the at least one installation space, instead of the second unit, an apparatus configured to operate by receiving power supplied from the first unit may be installed.

6. The wiring appliance system according to any one of claims 1 to 5,

the first unit includes a switch box configured to be fixed to the construction object, the switch box having an introduction portion through which the wiring is introduced.

7. The wiring appliance system according to any one of claims 1 to 6,

mounting the second unit to the at least one mounting space involves a linear movement of the second unit to the first unit.

8. The wiring appliance system according to any one of claims 1 to 7,

mounting the second unit to the at least one mounting space involves a rotation of the second unit relative to the first unit.

9. The wiring appliance system according to any one of claims 1 to 8,

at least one of the first unit and the second unit has a locking portion switchable between a locked state in which a restriction is imposed on removal of the second unit from the first unit in a state in which the second unit is mounted to the at least one mounting space, and an unlocked state in which the restriction is released.

10. The wiring appliance system according to claim 9,

the lock portion is restricted from being switched from the locked state to the unlocked state in a state where power is supplied from the first unit to the second unit.

11. The wiring appliance system according to any one of claims 1 to 10,

the first unit includes a decorative panel arranged around the second unit in a front view.

12. The wiring appliance system according to any one of claims 1 to 11,

at least one of the first unit and the second unit includes a power conversion portion configured to convert electric power.

13. The wiring appliance system of claim 12,

The power conversion section is provided to the first unit.

14. The wiring appliance system according to any one of claims 1 to 13,

in a state where the second unit is mounted to the at least one mounting space, an attitude of the second unit may be changed.

15. The wiring appliance system according to any one of claims 1 to 14,

the first unit includes a plurality of connection portions for electrically connecting the second unit.

16. The wiring appliance system of claim 15,

the plurality of connection portions are disposed in the at least one installation space including only one installation space.

17. The wiring appliance system according to claim 15 or 16,

the plurality of connecting parts include first and second connecting parts of different types.

18. The wiring appliance system according to any one of claims 15 to 17,

among the plurality of connection parts, some of the connection parts for supplying power supply power to the second unit installed in the at least one installation space, and

among the plurality of connection parts, one or more connection parts other than at least one connection part for supplying power mechanically holds the second unit mounted in the at least one mounting space.

19. A cell arrangement configured for use as the first cell or the second cell in the wiring appliance system of any one of claims 1 to 18.