Adapter, duct system, and electrical equipment system

Abstract

To provide an adapter, a duct system, and an electrical equipment system that can attach electrical equipment to a wiring duct such that a power line of a wiring duct that does not correspond to the structure of the electrical equipment is electrically connected to a conductive part of the electrical equipment.SOLUTION: In an adapter 1, a first dimension D1 in the specified direction X1 between a holding portion 12 and a contact portion 140 that contacts a conductive portion 34 of a second contact portion 14 is smaller than a second dimension D2 in the specified direction X1 between a first power line 21 and a locking portion 11, and is the same as a third dimension D3 in the specified direction X1 between a second power line 22, which is different from the first power line 21 among the multiple power lines, and the locking portion 11.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present disclosure generally relates to adapters, duct systems, and electrical equipment systems. More particularly, the present disclosure relates to an adapter, a duct system, and an electrical equipment system that electrically connect a conductive portion of a wiring duct and a conductive portion of an electrical equipment.

Background Art

[0002] Patent Document 1 discloses a control device that can control a lighting fixture and includes a control unit, a housing, and a mounting portion. The control unit acquires lighting information indicating the control content of the lighting fixture and generates a control signal for controlling the lighting fixture based on the lighting information. The housing houses the control unit. The mounting portion mounts the housing on a rail portion capable of supporting the lighting fixture.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, an electrical device may be attached to a wiring duct having a plurality of power lines. In this case, the conductive portion of the electrical device is configured to be electrically connected to one of the plurality of power lines and not electrically connected to the other power lines. In recent years, it has been desired to electrically connect the electrical device to a power line to which the electrical device could not be directly electrically connected in the past.

[0005] An object of the present disclosure is to provide an adapter, a duct system, and an electrical equipment system capable of electrically connecting an electrical device to a power line to which the electrical device could not be directly electrically connected in the past.

Means for Solving the Problems

[0006] An adapter according to an aspect of the present disclosure is an adapter for attaching an electrical device to a wiring duct having a plurality of power lines. The adapter includes a locking portion, a holding portion, a first contact portion, and a second contact portion. The locking portion locks to the wiring duct. The holding portion holds the electrical device. The first contact portion is in electrical contact with any one of the plurality of power lines, a first power line, in a state where the locking portion is locked to the wiring duct. The second contact portion is electrically connected to the first contact portion and is in electrical contact with a conductive portion included in the electrical device in a state where the holding portion holds the electrical device. The plurality of power lines are arranged in a predetermined direction in which the wiring duct and the adapter are aligned in a state where the locking portion is locked to the wiring duct. A first dimension in the predetermined direction between a contact portion of the second contact portion that contacts the conductive portion and the holding portion is smaller than a second dimension in the predetermined direction between the first power line and the locking portion, and is the same as a third dimension in the predetermined direction between a second power line different from the first power line among the plurality of power lines and the locking portion.

[0007] A duct system according to an aspect of the present disclosure includes the adapter and the wiring duct.

[0008] An electrical device system according to an aspect of the present disclosure includes the duct system and the electrical device.

Advantages of the Invention

[0009] According to the present disclosure, there is an advantage that the electrical device can be electrically connected to a power line to which the electrical device could not be directly electrically connected conventionally.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0011] In each of the following embodiments, the adapter, duct system, and electrical equipment system of the present disclosure will be described with reference to the drawings. However, each of the following embodiments is only a part of various embodiments of the present disclosure. Each of the following embodiments can be variously modified according to design and the like as long as the object of the present disclosure can be achieved. Also, each drawing described in each of the following embodiments is a schematic diagram, and the ratio of the size and thickness of each component in the drawing does not necessarily reflect the actual dimensional ratio.

[0012] (This Embodiment) (1) Overview Hereinafter, the overview of the adapter 1 according to the present embodiment will be described with reference to FIGS. 1 to 4.

[0013] As shown in FIGS. 1 and 3, the adapter 1 according to the present embodiment attaches the electrical equipment 3 to the wiring duct 2 having a plurality of power lines. The wiring duct 2 transmits power to the electrical equipment 3. The wiring duct 2 is installed, for example, on the ceiling of a facility. The electrical equipment 3 is a device that consumes the power transmitted from the wiring duct 2. The electrical equipment 3 may be, for example, a lighting device, a display, an imaging device, or an air conditioning device, etc. In the present embodiment, the case where the electrical equipment 3 is a lighting device will be described as an example.

[0014] As shown in FIGS. 2 and 4, the adapter 1 of the present embodiment includes a locking portion 11, a holding portion 12, a first contact portion 13, and a second contact portion 14. The locking portion 11 locks to the wiring duct 2. The holding portion 12 holds the electrical device 3. The first contact portion 13 is in electrical contact with any one of a plurality of power lines provided in the wiring duct 2, i.e., a first power line 21, in a state where the locking portion 11 is locked to the wiring duct 2. The second contact portion 14 is electrically connected to the first contact portion 13 and is in electrical contact with a conductive portion 34 provided in the electrical device 3 in a state where the holding portion 12 holds the electrical device 3.

[0015] In the wiring duct 2, the plurality of power lines are arranged in a predetermined direction X1 in which the wiring duct 2 and the adapter 1 are side by side in a state where the locking portion 11 is locked to the wiring duct 2. The first dimension D1 shown in FIG. 4 is the dimension in the predetermined direction X1 between a contact portion 140 that contacts the conductive portion 34 in the second contact portion 14 and the holding portion 12. The second dimension D2 is the dimension in the predetermined direction X1 between the first power line 21 of the wiring duct 2 and the locking portion 11. The second dimension D2 is the dimension in the predetermined direction X1 between a second power line 22 different from the first power line 21 among the plurality of power lines of the wiring duct 2 and the locking portion 11. The first dimension D1 is smaller than the second dimension D2 and is the same as the third dimension D3. Note that "the same" as used in the present disclosure is not limited to strict coincidence, and an error is allowed. The allowable error range is, for example, about 5%.

[0016] When the electrical device 3 of the present embodiment is directly attached to the wiring duct 2 without passing through the adapter 1, the conductive portion 34 of the electrical device 3 is not electrically connected to the first power line 21 of the wiring duct 2, but is electrically connected to the second power line 22. That is, in the wiring duct 2, the first power line 21 does not conform to the attachment structure of the electrical device 3, and the second power line 22 conforms to the attachment structure of the electrical device 3. In the present disclosure, "not conforming to the attachment structure of the electrical device 3" means, in other words, that when the electrical device 3 is directly attached to the wiring duct 2 without passing through the adapter 1, it is not configured to be electrically connected to the conductive portion 34 of the electrical device 3. On the other hand, "conforming to the attachment structure of the electrical device 3" means, in other words, that when the electrical device 3 is directly attached to the wiring duct 2 without passing through the adapter 1, it is configured to be electrically connected to the conductive portion 34 of the electrical device 3.

[0017] The adapter 1 of the present embodiment can attach the electrical device 3 to the wiring duct 2 such that the first power line 21, which does not conform to the attachment structure of the electrical device 3 among the plurality of power lines, is electrically connected to the conductive portion 34 of the electrical device 3. That is, the adapter 1 of the present embodiment has the advantage that it can electrically connect the electrical device 3 in the first power line 21 where the electrical device 3 could not be directly electrically connected conventionally.

[0018] (2) Detailed Configuration (2-1) Electrical Device System Hereinafter, the detailed configuration of the electrical device system 200 of the present embodiment will be described with reference to FIGS. 1 to 7.

[0019] As shown in FIGS. 1 and 3, the electrical device system 200 of the present embodiment includes a duct system 100 and an electrical device 3. The duct system 100 of the present embodiment includes an adapter 1 and a wiring duct 2.

[0020] In the following description, as shown in FIG. 1, the direction in which the adapter 1 and the wiring duct 2 are arranged side by side is defined as the vertical direction, the side of the wiring duct 2 as viewed from the adapter 1 is defined as the upper side, and the side of the adapter 1 as viewed from the wiring duct 2 is defined as the lower side. Also, in the following description, the longitudinal direction of the wiring duct 2 in FIG. 1 is defined as the "front-rear direction", and the direction orthogonal to the "vertical direction" and the "front-rear direction" is defined as the "left-right direction". Note that the arrows indicating the "vertical direction", "front-rear direction", and "left-right direction" in the drawings are merely for explanation and do not have an actual entity. Also, these directions are not intended to limit the installation state of the electrical equipment system 200.

[0021] (2-2) Wiring Duct The wiring duct 2 is used to supply power to the electrical equipment 3 in the facility. The wiring duct 2 receives power from a power source. Specifically, the power source from which the wiring duct 2 receives power is, for example, a commercial power source. The wiring duct 2 receives the DC power converted by a converter circuit (not shown) installed in the facility from the AC power supplied from the commercial power source and supplies it to the electrical equipment 3. Note that the "facility" referred to in the present disclosure may be a residence or a non-residence. Examples of residences may include single-family houses and apartment houses. Examples of non-residences may include office buildings, commercial facilities, accommodation facilities, complex facilities, warehouses, and factories.

[0022] When the electrical equipment 3 is directly attached to the wiring duct 2 without passing through the adapter 1, the wiring duct 2 directly supplies power to the electrical equipment 3 without passing through the adapter 1. On the other hand, when the electrical equipment 3 is attached to the wiring duct 2 via the adapter 1, the wiring duct 2 supplies power to the electrical equipment 3 via the adapter 1.

[0023] As shown in FIG. 4, the wiring duct 2 of the present embodiment includes a main body 23, a pair of first power lines 21, and a pair of second power lines 22. That is, the wiring duct 2 of the present embodiment includes two sets of power lines (a pair of first power lines 21 and a pair of second power lines 22) as a plurality of power lines. The pair of first power lines 21 is one set of power lines among the two sets of power lines, and the pair of second power lines 22 is the remaining set of power lines among the two sets of power lines.

[0024] The main body 23 has side surfaces 231, 232, an upper surface 233, and a lower surface 234. The side surfaces 231, 232 face each other in the left-right direction. The upper surface 233 and the lower surface 234 face each other in the up-down direction. The upper surface 233 mechanically connects the upper end portions of the side surfaces 231, 232. That is, each of the side surfaces 231, 232 projects downward from the left and right side edges of the upper surface 233. The main body 23 is formed in a U-shaped cross-sectional shape by the side surfaces 231, 232 and the upper surface 233.

[0025] As shown in FIG. 4, an opening 235 extending along the front-rear direction is provided in the lower surface 234 of the main body 23. The adapter 1 can be attached at any position in the front-rear direction of the opening 235.

[0026] The pair of first power lines 21 is supplied with DC power from a first power supply path. On the other hand, the pair of second power lines 22 is supplied with DC power from a second power supply path different from the first power supply path. The first power supply path and the second power supply path are, for example, two power supply paths branched from a commercial power supply.

[0027] As shown in FIG. 4, the pair of first power lines 21 are arranged side by side in the left-right direction. The right first power line 21 of the pair of first power lines 21 is provided on the side surface 231, and the left first power line 21 is provided on the side surface 232. More specifically, the right first power line 21 of the pair of first power lines 21 is provided at the tip of the protruding portion 236 of the side surface 231, and the left first power line 21 is provided at the tip of the protruding portion 237 of the side surface 232.

[0028] Similarly, a pair of second power lines 22 are arranged side by side in the left - right direction. Among the pair of second power lines 22, the right - hand second power line 22 is provided on the side surface portion 231, and the left - hand second power line 22 is provided on the side surface portion 232, respectively. More specifically, among the pair of second power lines 22, the right - hand second power line 22 is provided at the tip of the protruding portion 238 that the side surface portion 231 has, and the left - hand second power line 22 is provided at the tip of the protruding portion 239 that the side surface portion 232 has, respectively.

[0029] Here, the pair of first power lines 21 and the pair of second power lines 22 are arranged in a predetermined direction X1 (vertical direction) in which the wiring duct 2 and the adapter 1 are side by side in a state where a locking portion 11 (described later) of the adapter 1 is locked to the wiring duct 2 (that is, in a state where the adapter 1 is attached to the wiring duct 2). The pair of second power lines 22 are provided below the pair of first power lines 21. That is, the protruding portions 236, 237 and the protruding portions 238, 239 are arranged in the predetermined direction X1. The protruding portions 238, 239 are provided below the protruding portions 236, 237.

[0030] Each of the pair of first power lines 21 does not conform to the attachment structure of the electrical device 3 (more specifically, the locking portion 33 and the pair of conductive portions 34 described later), and each of the pair of second power lines 22 conforms to the attachment structure of the electrical device 3. That is, when the electrical device 3 is directly attached to the wiring duct 2 without passing through the adapter 1, each of the pair of first power lines 21 is not electrically connected to the conductive portion 34 of the electrical device 3, and each of the pair of second power lines 22 is electrically connected to the conductive portion 34 of the electrical device 3. For this reason, the wiring duct 2 directly supplies the DC power supplied to the pair of second power lines 22 to the electrical device 3.

[0031] On the one hand, when the electrical device 3 is attached to the wiring duct 2 via the adapter 1, each of the pair of first power lines 21 is electrically connected to a first contact portion 13 (described later) of the adapter 1, and each of the pair of second power lines 22 is not electrically connected to the first contact portion 13 of the adapter 1. Therefore, the wiring duct 2 supplies the DC power supplied to the pair of first power lines 21 to the electrical device 3 via the adapter 1.

[0032] (2-3) Electrical device The electrical device 3 is a device that consumes the power transmitted from the wiring duct 2. As shown in FIGS. 1 and 4, the electrical device 3 includes a main body portion 31, a connection portion 32, a locking portion 33, and a pair of conductive portions 34. The locking portion 33 and the pair of conductive portions 34 are structures for attaching the electrical device 3 to the wiring duct 2 or the adapter 1 (that is, the attachment structure of the electrical device 3).

[0033] The main body portion 31 has a power consumption portion 311 that consumes power. In this embodiment, since the electrical device 3 is a lighting device, the power consumption portion 311 includes a light source such as a light-emitting diode. The light source emits light by receiving the supply of DC power from the wiring duct 2 via the adapter 1. The main body portion 31 of this embodiment is, as an example, cylindrical.

[0034] The connection portion 32 is a member for mechanically connecting the main body portion 31 to the adapter 1 when the electrical device 3 is attached to the adapter 1. The connection portion 32 is connected to the main body portion 31.

[0035] As an example, the connection portion 32 of this embodiment has a first portion 321 and a second portion 322 as shown in FIG. 3. Each of the first portion 321 and the second portion 322 is cylindrical, and the radius of the second portion 322 is larger than the radius of the first portion 321. The first portion 321 and the second portion 322 are arranged in the vertical direction. The lower end of the first portion 321 is connected to the main body portion 31, and the upper end of the first portion 321 is connected to the lower end of the second portion 322. The lower end of the first portion 321 is a rotary joint, and the main body portion 31 is rotatably connected to the connection portion 32 (the first portion 321 thereof).

[0036] The second part 322 of the connection part 32 has an operation part 35 that is operated by the user when removing the electric device 3 from the adapter 1. The operation part 35 of the present embodiment is provided on the front surface of the second part 322. The operation part 35 is configured to be movable in the vertical direction in response to the operation of the user. A protruding part (not shown) that protrudes upward is formed at the upper end of the operation part 35. When the operation part 35 is moved upward in a state where the electric device 3 is attached to the adapter 1, since the protruding part of the operation part 35 is inserted into an insertion hole 164 (described later) of the adapter 1, the user cannot rotate the electric device 3 by 90 degrees in parallel in the front-rear direction and the left-right direction. On the other hand, when the operation part 35 is moved downward, since the protruding part of the operation part 35 is not inserted into the insertion hole 164 (described later) of the adapter 1, the user can rotate the electric device 3 by 90 degrees in parallel in the front-rear direction and the left-right direction. Note that a detailed description of the method for removing the electric device from the adapter will be described in the column of "(2-8) Method for Removing the Electric Device from the Adapter".

[0037] The locking part 33 is a part that locks to a holding part 12 (described later) of the adapter 1 in a state where the electric device 3 is attached to the wiring duct 2 via the adapter 1. On the other hand, the locking part 33 is a part that locks to the inner surface of the lower surface part 234 of the wiring duct 2 in a state where the electric device 3 is attached to the wiring duct 2. As shown in FIG. 4, the locking part 33 is provided at the upper end of the second part 322 in the connection part 32.

[0038] The locking part 33 of the present embodiment has, as shown in FIG. 4, a base part 331 and a pair of locking pieces 332. The base part 331 is a cylindrical part that protrudes upward from the upper end of the second part 322 in the connection part 32. The pair of locking pieces 332 protrude from the base part 331 in opposite directions to each other. More specifically, each of the pair of locking pieces 332 protrudes from the base part 331 in the radial direction of the base part 331. The pair of locking pieces 332 protrude in the left-right direction from the side surface of the base part 331 in a state where the electric device 3 is attached to the adapter 1. The shape of the pair of locking pieces 332 is substantially a rectangular parallelepiped.

[0039] A pair of conductive parts 34 receives DC power input. The conductive parts 34 conduct the input DC power to the power consumption part 311 of the main body part 31.

[0040] When the electric device 3 is directly attached to the wiring duct 2 without passing through the adapter 1, the pair of conductive parts 34 is electrically connected to the second power line 22 of the wiring duct 2 and is not electrically connected to the first power line 21. That is, when the electric device 3 is directly attached to the wiring duct 2 without passing through the adapter 1, each of the pair of conductive parts 34 is electrically connected to the corresponding second power line 22 among the pair of second power lines 22 in the wiring duct 2. The first contact part 13 on the right side of the pair of conductive parts 34 corresponds to the right second power line 22, and the left conductive part 34 corresponds to the left second power line 22. For this reason, the pair of conductive parts 34 receives the DC power directly transmitted from the second power line 22 of the wiring duct 2.

[0041] On the other hand, when the electric device 3 is attached to the wiring duct 2 via the adapter 1, each of the pair of conductive parts 34 is electrically connected to a second contact part 14 (described later) of the adapter 1. For this reason, the pair of conductive parts 34 receives the DC power transmitted from the first power line 21 of the wiring duct 2 via the adapter 1.

[0042] In the present embodiment, each of the pair of conductive parts 34 is a metal piece. As shown in FIG. 4, the pair of conductive parts 34 are arranged side by side in the left - right direction. A part of each of the pair of conductive parts 34 protrudes from the upper end of the base part 331 of the locking part 33. The protruding parts of each of the pair of conductive parts 34 are curved in opposite directions. More specifically, in a state where the electric device 3 is attached to the adapter 1, the protruding parts of each of the pair of conductive parts 34 are curved in the left - right direction respectively. In a state where the electric device 3 is attached to the adapter 1, the tips of the protruding parts of each of the pair of conductive parts 34 are electrically connected to the second contact part 14.

[0043] (2 - 4) Adapter The adapter 1 is an adapter for attaching the electrical device 3 to the wiring duct 2. More specifically, the adapter 1 is a member attached between the wiring duct 2 and the electrical device 3. That is, the adapter 1 is attached to the wiring duct 2, and the electrical device 3 is attached to the adapter 1.

[0044] As shown in FIGS. 2 and 4, the adapter 1 includes a pair of locking portions 11, a holding portion 12, a pair of first contact portions 13, a pair of second contact portions 14, a cover portion 15, a housing 16, a lid portion 17, an insertion portion 18, a plurality (four) of screws 91, and two connection fittings 92.

[0045] First, the configurations of the housing 16, the lid portion 17, the insertion portion 18, and the pair of locking portions 11 will be described.

[0046] As shown in FIG. 7, the housing 16 has a rectangular box shape with an opening 165 at the top. As shown in FIG. 4, the housing 16 houses the holding portion 12, a part of the pair of first contact portions 13, the pair of second contact portions 14, and the cover portion 15. An insertion hole 164 into which a locking portion 33 (to be described later) of the electrical device 3 is inserted is formed on the lower surface of the housing 16. The insertion hole 164 is a hole extending along the front-rear direction.

[0047] As shown in FIG. 2, the housing 16 has an operation portion 161 that is operated by the user when removing the adapter 1 from the wiring duct 2. The operation portion 161 of the present embodiment is provided on the front surface of the housing 16. The operation portion 161 is configured to be movable in the vertical direction in response to the user's operation. A protruding portion 1611 that protrudes upward is formed at the upper end of the operation portion 161. The protruding portion 1611 is a plate member whose thickness direction is along the front-rear direction. The shape of the protruding portion 1611 when viewed from the front-rear direction is triangular, and more specifically, a right-angled triangle. When the adapter 1 is attached to the wiring duct 2 and the operation portion 161 is moved upward, since the protruding portion 1611 of the operation portion 161 is inserted into the opening 235 of the wiring duct 2, the user cannot rotate the adapter 1 90 degrees parallel to the front-rear direction and the left-right direction. On the other hand, when the operation portion 161 is moved downward, since the protruding portion 1611 of the operation portion 161 is not inserted into the opening 235 of the wiring duct 2, the user can rotate the adapter 1 90 degrees parallel to the front-rear direction and the left-right direction. Details of the method for removing the adapter 1 from the wiring duct 2 will be described in the section "(2-6) Method for Removing the Adapter from the Wiring Duct".

[0048] As shown in FIGS. 5 and 7, the housing 16 has a plurality (four) of screw holes 162 into which corresponding ones of the plurality (four) of screws 91 are tightened.

[0049] As shown in FIG. 4, the lid portion 17 covers the opening 165 of the housing 16. Specifically, the lid portion 17 is a rectangular plate member. The dimensions of the lid portion 17 when viewed from the vertical direction are substantially the same as the dimensions of the opening 165 of the housing 16. As shown in FIG. 7, the lid portion 17 has a plurality (four) of insertion holes 171 through which corresponding ones of the plurality (four) of screws 91 are inserted.

[0050] The insertion portion 18 is a portion that is inserted into the opening 235 of the main body portion 23 of the wiring duct 2 when the adapter 1 is attached to the wiring duct 2. The insertion portion 18 is a cylindrical portion that protrudes upward from the upper surface of the lid portion 17.

[0051] Each of the pair of locking portions 11 locks to the main body portion 23 of the wiring duct 2 when the adapter 1 is attached to the wiring duct 2. More specifically, each of the pair of locking portions 11 locks to the inner surface of the lower surface portion 234 of the wiring duct 2. As shown in FIGS. 2 and 4, the pair of locking portions 11 protrude from the insertion portion 18 in opposite directions from each other. More specifically, each of the pair of locking portions 11 protrudes in the radial direction of the insertion portion 18 from the insertion portion 18. As shown in FIG. 4, the pair of locking pieces 332 protrude in the left-right direction from the side surface of the insertion portion 18 when the adapter 1 is attached to the wiring duct 2. The shape of the pair of locking portions 11 is a substantially rectangular parallelepiped.

[0052] The housing 16, the lid portion 17, the insertion portion 18, and the pair of locking portions 11 are formed of, for example, a resin material.

[0053] Next, the configuration of the holding portion 12 will be described.

[0054] The holding portion 12 holds the pair of locking pieces 332 of the locking portion 33 in the electric device 3 when the electric device 3 is attached to the adapter 1. As shown in FIG. 5, the holding portion 12 of the present embodiment has a support portion 121 that supports the load of the electric device 3. The support portion 121 is formed of a metal material. According to this configuration, there is an advantage that the strength of the holding portion 12 can be ensured.

[0055] The support portion 121 is formed with a stopper that restricts the movement of the electric device 3 in a direction (front-rear direction) that intersects both the predetermined direction X1 and the opposite direction X2 when the holding portion 12 holds the electric device 3. More specifically, the shape of the support portion 121 is configured to function as the above-described stopper. Hereinafter, the shape of the support portion 121 configured to function as a stopper will be specifically described.

[0056] As shown in FIGS. 5 and 6, the support portion 121 includes a pair of first plate portions 1211a and 1211b, a pair of second plate portions 1212a and 1212b, a third plate portion 1213, a fourth plate portion 1214, a pair of fifth plate portions 1215a and 1215b, a sixth plate portion 1216, and a seventh plate portion 1217. As shown in FIG. 5, the pair of first plate portions 1211a and 1211b, the pair of second plate portions 1212a and 1212b, and the pair of fifth plate portions 1215a and 1215b are arranged side by side in the left - right direction.

[0057] Each of the pair of first plate portions 1211a and 1211b is a rectangular plate member whose thickness direction is along the up - down direction. As shown in FIG. 6, the second plate portion 1212a protrudes upward from the front end of the first plate portion 1211a. Similarly, as shown in FIG. 6, the second plate portion 1212b protrudes upward from the front end of the first plate portion 1211b. Each of the pair of second plate portions 1212a and 1212b is a rectangular plate member whose thickness direction is along the front - rear direction. The third plate portion 1213 is a plate member whose thickness direction is along the up - down direction and mechanically connects the pair of second plate portions 1212a and 1212b. More specifically, as shown in FIG. 5, the rear end of the left - hand side portion of the third plate portion 1213 is mechanically connected to the upper end of the second plate portion 1212a, and the rear end of the right - hand side portion of the third plate portion 1213 is mechanically connected to the upper end of the second plate portion 1212b. As shown in FIGS. 5 and 6, the fourth plate portion 1214 protrudes upward from the rear end of the central portion in the left - right direction of the third plate portion 1213. The fourth plate portion 1214 is a rectangular plate member whose thickness direction is along the front - rear direction.

[0058] Similarly, each of the pair of fifth plate portions 1215a and 1215b is a rectangular plate member whose thickness direction is along the front-rear direction. As shown in FIG. 6, the fifth plate portion 1215a protrudes upward from the rear end of the first plate portion 1211a. Similarly, as shown in FIG. 6, the fifth plate portion 1215b protrudes upward from the rear end of the first plate portion 1211b. The sixth plate portion 1216 is a plate member whose thickness direction is along the vertical direction, and mechanically connects the pair of fifth plate portions 1215a and 1215b. More specifically, as shown in FIG. 5, the front end of the left side portion of the sixth plate portion 1216 is mechanically connected to the upper end of the fifth plate portion 1215a, and the front end of the right side portion of the sixth plate portion 1216 is mechanically connected to the upper end of the fifth plate portion 1215b. As shown in FIGS. 5 and 6, the seventh plate portion 1217 protrudes upward from the front end of the central portion in the left-right direction of the sixth plate portion 1216. The seventh plate portion 1217 is a rectangular plate member whose thickness direction is along the front-rear direction.

[0059] As shown in FIG. 5, among the pair of locking pieces 332 in the locking portion 33 of the electric device 3, the right locking piece 332 is located between the second plate portion 1212a and the fifth plate portion 1215a in the front-rear direction when the holding portion 12 holds the electric device 3. Similarly, among the pair of locking pieces 332 in the locking portion 33 of the electric device 3, the left locking piece 332 is located between the second plate portion 1212b and the fifth plate portion 1215b in the front-rear direction when the holding portion 12 holds the electric device 3. As a result, when a force for moving the electric device 3 in a direction (front-rear direction) intersecting both the predetermined direction X1 and the opposing direction X2 is applied, the pair of second plate portions 1212a and 1212b and the pair of fifth plate portions 1215a and 1215b of the support portion 121 can suppress the movement of the electric device 3. As a result, there is an advantage that the movement of the electric device 3 can be suppressed without complicating the structure of the adapter 1.

[0060] In this embodiment, as shown in FIG. 5, a groove 1218a through which the right locking piece 332 of the pair of locking pieces 332 passes is provided in the second plate portion 1212a when the electrical device 3 is attached to the adapter 1. Similarly, a groove 1218b through which the left locking piece 332 of the pair of locking pieces 332 passes is provided in the fifth plate portion 1215b when the electrical device 3 is attached to the adapter 1.

[0061] Next, the configurations of the pair of first contact portions 13, the pair of second contact portions 14, and the cover portion 15 will be described.

[0062] As shown in FIG. 4, each of the pair of first contact portions 13 is electrically connected to the corresponding first power line 21 among the pair of first power lines 21 in a state where the adapter 1 is attached to the wiring duct 2 (that is, a state where each of the pair of locking portions 11 is locked to the wiring duct 2).

[0063] The pair of first contact portions 13 are a pair of plate members facing each other along an opposing direction X2 (left - right direction) intersecting a predetermined direction X1 (up - down direction). That is, the pair of first contact portions 13 are arranged in the opposing direction X2. The right first contact portion 13 of the pair of first contact portions 13 corresponds to the right first power line 21, and the left first contact portion 13 corresponds to the left first power line 21.

[0064] In this embodiment, each of the pair of first contact portions 13 has a first portion 131, a second portion 132, and a third portion 133. The first portion 131 is a plate member whose thickness direction is along the left - right direction. The second portion 132 in each of the pair of first contact portions 13 is a plate member that protrudes from the upper end of the first portion 131 in opposite directions. More specifically, the second portion 132 in the right - hand first contact portion 13 protrudes rightward from the upper end of the first portion 131, and the second portion 132 in the left - hand first contact portion 13 protrudes leftward from the upper end of the first portion 131. The third portion 133 in each of the pair of first contact portions 13 is a plate member that protrudes from the lower end of the first portion 131 in opposite directions. More specifically, the third portion 133 in the right - hand first contact portion 13 protrudes rightward from the lower end of the first portion 131, and the third portion 133 in the left - hand first contact portion 13 protrudes leftward from the lower end of the first portion 131.

[0065] The protruding end of the second portion 132 in each of the pair of first contact portions 13 is a contact surface 130 that is electrically connected to the corresponding first power line 21 in a state where each of the pair of locking portions 11 is locked to the wiring duct 2. More specifically, the protruding end (right end) of the second portion 132 in the right - hand first contact portion 13 is the contact surface 130 that is electrically connected to the right - hand first power line 21 in a state where each of the pair of locking portions 11 is locked to the wiring duct 2. Similarly, the protruding end (left end) of the second portion 132 in the left - hand first contact portion 13 is the contact surface 130 that is electrically connected to the left - hand first power line 21 in a state where each of the pair of locking portions 11 is locked to the wiring duct 2.

[0066] As shown in FIG. 4, each of the pair of second contact portions 14 is in electrical contact with the corresponding conductive portion 34 of the pair of conductive portions 34 of the electric device 3 in a state where the electric device 3 is attached to the adapter 1 (that is, in a state where the holding portion 12 holds the pair of locking pieces 332 of the electric device 3).

[0067] The pair of second contact portions 14 are a pair of plate members facing each other along the opposing direction X2 (left - right direction) that intersects the predetermined direction X1 (vertical direction). That is, the pair of second contact portions 14 are arranged side by side in the opposing direction X2. The right - hand second contact portion 14 of the pair of second contact portions 14 corresponds to the right - hand conductive portion 34, and the left - hand second contact portion 14 corresponds to the left - hand conductive portion 34.

[0068] In this embodiment, each of the pair of second contact portions 14 has a first portion 141 and a second portion 142. The thickness direction of the first portion 141 is along the left - right direction. The second portion 142 in the right - hand second contact portion 14 protrudes leftward from the upper end of the first portion 141, and the second portion 142 in the left - hand second contact portion 14 protrudes rightward from the upper end of the first portion 141.

[0069] In this embodiment, the inner surfaces of each of the pair of second contact portions 14 (pair of plate members) are in electrical contact with the corresponding conductive portions 34 in a state where the holding portion 12 holds the pair of locking pieces 332 of the electric device 3. That is, the inner surface of each of the pair of second contact portions 14 has a contact portion 140 that is in electrical contact with the corresponding conductive portion 34 in a state where the holding portion 12 holds the pair of locking pieces 332 of the electric device 3. More specifically, the inner surface of the first portion 141 of each of the pair of second contact portions 14 has the contact portion 140 below it. In short, in a state where the holding portion 12 holds the pair of locking pieces 332 of the electric device 3, the inner surface of the first portion 141 of the right second contact portion 14 has the contact portion 140 that is in electrical contact with the right conductive portion 34 below it, and the inner surface of the first portion 141 of the left second contact portion 14 has the contact portion 140 that is in electrical contact with the left conductive portion 34 below it. Note that the "inner surface of each of the pair of second contact portions 14" as used in the present disclosure refers to the side surface of one of the pair of second contact portions 14 that is closer to the other second contact portion 14 in the pair of second contact portions 14 facing each other. That is, the "inner surface of the first portion 141 of each of the pair of second contact portions 14" refers to the side surface of the first portion 141 of one of the pair of second contact portions 14 that is closer to the first portion 141 of the other second contact portion 14 in the pair of second contact portions 14 facing each other. More specifically, the "inner surface of the first portion 141 of the right second contact portion 14" is the left side surface, and the "inner surface of the first portion 141 of the left second contact portion 14" is the right side surface.

[0070] On one hand, the outer surfaces of each of the plate members which are a pair of second contact portions 14 are not in electrical contact with the corresponding conductive portions 34 in a state where the holding portion 12 holds the pair of locking pieces 332 of the electrical device 3. That is, the outer surfaces of each of the pair of second contact portions 14 do not have a contact portion 140 that is in electrical contact with the corresponding conductive portion 34 in a state where the holding portion 12 holds the pair of locking pieces 332 of the electrical device 3. More specifically, the outer surfaces of the first portions 141 of each of the pair of second contact portions 14 do not have the contact portion 140. In short, in a state where the holding portion 12 holds the pair of locking pieces 332 of the electrical device 3, the outer surface of the first portion 141 of the right second contact portion 14 does not have a contact portion 140 that is in electrical contact with the right conductive portion 34, and the inner surface of the first portion 141 of the left second contact portion 14 does not have a contact portion 140 that is in electrical contact with the left conductive portion 34. Note that the "outer surfaces of each of the pair of second contact portions 14" as used in the present disclosure refers to the side surfaces on the side opposite to the other second contact portion 14 in one of the pair of second contact portions 14 that face each other. That is, the "outer surfaces of the first portions 141 of each of the pair of second contact portions 14" refers to the side surfaces on the side opposite to the first portion 141 of the other second contact portion 14 in the first portion 141 of the pair of second contact portions 14 that face each other. More specifically, the "outer surface of the first portion 141 of the right second contact portion 14" is the right side surface, and the "outer surface of the first portion 141 of the left second contact portion 14" is the left side surface.

[0071] The second portions 142 of each of the pair of second contact portions 14 are mechanically and electrically connected by the connection fitting 92 to the third portions 133 of the corresponding first contact portions 13 among the pair of first contact portions 13. The right second contact portion 14 among the pair of second contact portions 14 corresponds to the right first contact portion 13, and the left second contact portion 14 corresponds to the left first contact portion 13.

[0072] As shown in FIG. 4, a part of the pair of first contact portions 13 is accommodated inside the insertion portion 18. More specifically, the upper portion of the first portion 131 and the portion of the second portion 132 opposite to the tip (i.e., the portion of the second portion 132 connected to the first portion 131) in each of the pair of first contact portions 13 are accommodated inside the insertion portion 18. The tips of the second portions 132 in each of the pair of first contact portions 13 protrude from the insertion portion 18 (i.e., are not accommodated in the insertion portion 18). In a state where each of the pair of locking portions 11 is locked to the wiring duct 2, the tips of the second portions 132 in each of the pair of first contact portions 13 are electrically connected to the corresponding first power line 21 among the pair of first power lines 21.

[0073] On the other hand, a part of the pair of first contact portions 13 and the pair of second contact portions 14 are accommodated inside the housing 16. More specifically, the lower portion and the third portion 133 of the first portion 131 in each of the pair of first contact portions 13 and the pair of second contact portions 14 are accommodated inside the housing 16.

[0074] The pair of first contact portions 13 and the pair of second contact portions 14 are formed of a material having conductivity such as a metal material.

[0075] The cover portion 15 covers at least a part of the pair of second contact portions 14 as shown in FIG. 4. The cover portion 15 of the present embodiment covers at least a part of the lower portion of the first portion 141 in each of the pair of second contact portions 14. According to this configuration, there is an advantage that deformation of the pair of second contact portions 14 when the electrical device 3 is attached to the adapter 1 and each of the pair of second contact portions 14 is brought into electrical contact with the corresponding conductive portion 34 can be suppressed.

[0076] The cover portion 15 of the present embodiment has an outer wall portion 151 and an inner wall portion 152 as shown in FIG. 4.

[0077] The outer wall portion 151 covers at least a part of the outer surface of each of the pair of second contact portions 14 (pair of plate members). More specifically, the outer wall portion 151 covers the lower part of the outer surface of the first portion 141 in each of the pair of second contact portions 14. The outer wall portion 151 is formed of a heat-resistant material. According to this configuration, there is an advantage that thermal deformation of the cover portion 15 can be suppressed. Note that the "heat-resistant material" referred to in the present disclosure is, for example, a thermosetting resin such as a phenol resin, a urea resin, or a melamine resin.

[0078] The inner wall portion 152 covers a part of the inner surface of each of the pair of second contact portions 14 (pair of plate members). More specifically, the inner wall portion 152 covers, in each of the pair of second contact portions 14, the portion of the lower part of the inner surface of the first portion 141 excluding the contact portion 140 that contacts the corresponding conductive portion 34. According to this configuration, when the electrical device 3 is not attached to the adapter 1, there is an advantage that it is possible to prevent the user's finger from contacting the pair of second contact portions 14 when the user attaches the adapter 1 to the wiring duct 2.

[0079] Next, the size relationship of the first dimension D1, the second dimension D2, and the third dimension D3 shown in FIG. 4 will be described.

[0080] The first dimension D1 is the dimension in the predetermined direction X1 between the contact portion 140 that contacts the corresponding conductive portion 34 in the first portion 141 of one of the pair of second contact portions 14 and the upper surface of the holding portion 12. More specifically, the first dimension D1 is the dimension in the predetermined direction X1 between the contact portion 140 that contacts the corresponding conductive portion 34 in the first portion 141 of one of the pair of second contact portions 14 and the upper surfaces of the first plate portions 1211a and 1211b of the locking portion 33 in the holding portion 12.

[0081] The second dimension D2 is the dimension in the predetermined direction X1 between one of the pair of first power lines 21 and the locking portion 11. More specifically, the second dimension D2 is the dimension in the predetermined direction X1 between the center of one of the pair of first power lines 21 in the predetermined direction X1 and the lower surface of the locking portion 11.

[0082] Similarly, the third dimension D3 is the dimension in the predetermined direction X1 between one of the pair of second power lines 22 and the locking portion 11. More specifically, the third dimension D3 is the dimension in the predetermined direction X1 between the center of one of the pair of second power lines 22 in the predetermined direction X1 and the lower surface of the locking portion 11.

[0083] In the adapter 1 of the present embodiment, the first dimension D1 is smaller than the second dimension D2 and is the same as the third dimension D3. According to this configuration, in the adapter 1 of the present embodiment, the electrical device 3 can be attached to the wiring duct 2 so that the first power line 21 that does not conform to the attachment structure of the electrical device 3 among the two sets of power lines and the conductive portion 34 of the electrical device 3 are electrically connected. That is, the adapter 1 of the present embodiment has the advantage that the electrical device 3 can be electrically connected to the first power line 21 where the electrical device 3 could not be directly electrically connected conventionally. In short, in the electrical device system 200 of the present embodiment, there is an advantage that the electrical device 3 can be electrically connected to either the first power line 21 or the second power line 22.

[0084] As shown in FIG. 7, the adapter 1 is formed by combining a second block B2 including a locking portion 11, a pair of first contact portions 13, and a pair of second contact portions 14 with a first block B1 including a holding portion 12, a cover portion 15, and a housing 16. In the present embodiment, the second block B2 further includes a lid portion 17 and an insertion portion 18. In a state where the second block B2 is combined with the first block B1, each of the plurality of screws 91 is inserted through the corresponding insertion hole 171 of the lid portion 17 and tightened into the corresponding screw hole 162 of the housing 16, so that the second block B2 is fixed to the first block B1. According to the above configuration, there is an advantage that the assembly of the adapter 1 becomes easy.

[0085] (2-5) Method of attaching the adapter to the wiring duct Hereinafter, a method for a user to attach the adapter 1 to the wiring duct 2 will be described.

[0086] First, the user inserts the insertion portion 18 of the adapter 1 from the opening 235 into the inside of the wiring duct 2 so that the protruding direction of the pair of locking portions 11 (see FIG. 2) is along the direction (front-rear direction) in which the opening 235 of the wiring duct 2 extends.

[0087] Thereafter, the adapter 1 is rotated 90 degrees parallel to the front-rear direction and the left-right direction. As a result, each of the pair of locking portions 11 is locked to the inner surface of the lower surface portion 234 of the wiring duct 2. Also, each of the pair of first contact portions 13 is electrically connected to the corresponding first power line 21 among the pair of first power lines 21.

[0088] (2-6) Method of removing the adapter from the wiring duct Hereinafter, a method for a user to remove the adapter 1 from the wiring duct 2 will be described.

[0089] First, while maintaining the state where the operation unit 161 (see FIG. 2) in the housing 16 of the adapter 1 is moved downward, the user rotates the adapter 1 parallelly 90 degrees in the front-rear direction and the left-right direction. At this time, the direction in which the adapter 1 is rotated when removing the adapter 1 from the wiring duct 2 is opposite to the direction in which the adapter 1 is rotated when attaching the adapter 1 to the wiring duct 2.

[0090] After that, the user pulls out the insertion part 18 of the adapter 1 from inside the wiring duct 2.

[0091] (2-7) Method of attaching an electrical device to an adapter Hereinafter, the method by which the user attaches the electrical device 3 to the adapter 1 will be described.

[0092] First, the user inserts the locking part 33 of the electrical device 3 from the insertion hole 164 (see FIG. 4) into the inside of the adapter 1 so that the protruding direction of the pair of locking pieces 332 in the locking part 33 of the electrical device 3 (see FIG. 4) is along the direction (front-rear direction) in which the insertion hole 164 in the housing 16 of the adapter 1 extends.

[0093] After that, the user rotates the electrical device 3 parallelly 90 degrees in the front-rear direction and the left-right direction. Thereby, the holding part 12 of the adapter 1 holds the pair of locking pieces 332 of the locking part 33 in the electrical device 3. Also, each of the pair of second contact parts 14 in the adapter 1 is in electrical contact with the corresponding conductive part 34 among the pair of conductive parts 34 of the electrical device 3.

[0094] (2-8) Method of detaching an electrical device from an adapter Hereinafter, the method by which the user detaches the electrical device 3 from the adapter 1 will be described.

[0095] First, while maintaining the state where the operation unit 35 (see FIG. 1) provided at the connection part 32 of the electric device 3 is moved downward, the user rotates the electric device 3 90 degrees parallel in the front-back direction and the left-right direction. At this time, the direction in which the electric device 3 is rotated when removing the electric device 3 from the adapter 1 is the opposite direction to the direction in which the electric device 3 was rotated when attaching the electric device 3 to the adapter 1.

[0096] After that, the user pulls out the locking part 33 of the electric device 3 from inside the adapter 1.

[0097] (3) Modification Hereinafter, modifications of the above-described embodiment will be listed. The following modifications may be realized in appropriate combinations.

[0098] In the above-described embodiment, the wiring duct 2 includes two sets of power lines as a plurality of power lines, but may include three or more sets of power lines.

[0099] In the above-described embodiment, the power source from which the wiring duct 2 receives power is a commercial power source, and the wiring duct 2 receives the DC power obtained by converting the AC power supplied from the commercial power source by a converter circuit (not shown) installed in the facility. However, the power source from which the wiring duct 2 receives power may output DC power instead of AC power. In that case, the converter circuit is omitted. Also, the power source from which the wiring duct 2 receives power is not limited to a commercial power source, and may be, for example, a self-generation facility or a storage battery.

[0100] (Summary) The adapter (1) of the first aspect is an adapter for attaching an electrical device (3) to a wiring duct (2) having a plurality of power lines. The adapter (1) of the first aspect includes a locking portion (11), a holding portion (12), a first contact portion (13), and a second contact portion (14). The locking portion (11) locks to the wiring duct (2). The holding portion (12) holds the electrical device (3). The first contact portion (13) is in electrical contact with any one of the plurality of power lines, a first power line (21), in a state where the locking portion (11) is locked to the wiring duct (2). The second contact portion (14) is electrically connected to the first contact portion (13) and is in electrical contact with a conductive portion (34) provided in the electrical device (3) in a state where the holding portion (12) holds the electrical device (3). The plurality of power lines are arranged in a predetermined direction (X1) in which the wiring duct (2) and the adapter are aligned in a state where the locking portion (11) is locked to the wiring duct (2). A first dimension (D1) in the predetermined direction (X1) between a contact portion (140) that contacts the conductive portion (34) of the second contact portion (14) and the holding portion (12) is smaller than a second dimension (D2) in the predetermined direction (X1) between the first power line (21) and the locking portion (11), and is the same as a third dimension (D3) in the predetermined direction (X1) between a second power line (22) different from the first power line (21) among the plurality of power lines and the locking portion (11).

[0101] According to the above configuration, there is an advantage that the electrical device (3) can be electrically connected to the first power line (21) to which the electrical device (3) could not be directly electrically connected in the past.

[0102] In the adapter (1) of the second aspect, in the first aspect, the wiring duct (2) includes two sets of power lines as the plurality of power lines. The first dimension (D1) is smaller than the second dimension (D2) which is the dimension in the predetermined direction (X1) between the first power line (21), which is one of the two sets of power lines, and the locking portion (11), and is the same as the third dimension (D3) which is the dimension in the predetermined direction (X1) between the second power line (22), which is the remaining power line of the two sets of power lines, and the locking portion (11).

[0103] According to the above configuration, in the first power line (21) to which the electrical device (3) could not be directly electrically connected among the two sets of power lines, there is an advantage that the electrical device (3) can be electrically connected.

[0104] In the adapter (1) of the third aspect, in the first or second aspect, the holding portion (12) has a support portion (121) that supports the load of the electrical device (3). The support portion (121) is formed of a metal material.

[0105] According to the above configuration, there is an advantage that the strength of the holding portion (12) can be ensured.

[0106] In the adapter (1) of the fourth aspect, in the third aspect, the second contact portion (14) is a pair of plate members facing each other along a direction (X2) intersecting the predetermined direction (X1). The support portion (121) is formed with a stopper that restricts the movement of the electrical device (3) in a direction intersecting both the predetermined direction (X1) and the opposing direction (X2) in a state where the holding portion (12) holds the electrical device (3).

[0107] According to the above configuration, there is an advantage that the movement of the electrical device (3) can be suppressed without complicating the structure of the adapter (1).

[0108] The adapter (1) of the fifth aspect further includes a cover portion (15) that covers at least a part of the second contact portion (14) in any one of the first to fourth aspects.

[0109] According to the above configuration, there is an advantage that deformation of the second contact portion (14) can be suppressed.

[0110] In the adapter (1) of the sixth aspect, in the fifth aspect, the second contact portion (14) is a pair of plate members facing each other. The inner surfaces of each of the pair of plate members are in electrical contact with the conductive portion (34) in a state where the holding portion (12) holds the electrical device (3). The cover portion (15) has an outer wall portion (151) that covers at least a part of the outer surfaces of each of the pair of plate members. The outer wall portion (151) is formed of a heat-resistant material.

[0111] According to the above configuration, there is an advantage that thermal deformation of the cover portion (15) can be suppressed.

[0112] In the adapter (1) of the seventh aspect, in the fifth aspect, the second contact portion (14) is a pair of plate members facing each other. The inner surfaces of each of the pair of plate members are in electrical contact with the conductive portion (34) in a state where the holding portion (12) holds the electrical device (3). The cover portion (15) has an inner wall portion (152) that covers a part of the inner surfaces of each of the pair of plate members.

[0113] According to the above configuration, there is an advantage that contact of a user's finger with the second contact portion (14) can be suppressed.

[0114] In the adapter (1) of the eighth aspect, in any one of the first to seventh aspects, the adapter (1) further includes a cover portion (15) that covers at least a part of the second contact portion (14), and a housing (16) that houses the cover portion (15). A second block (B2) including the locking portion (11), the first contact portion (13), and the second contact portion (14) is formed by being combined with a first block (B1) including the holding portion (12), the cover portion (15), and the housing (16).

[0115] According to the above configuration, there is an advantage that the assembly of the adapter (1) becomes easy.

[0116] The duct system (100) of the ninth aspect includes the adapter (1) of any one of the first to eighth aspects and a wiring duct (2).

[0117] According to the above configuration, there is an advantage that a duct system can be provided that allows the electrical equipment (3) to be attached to the wiring duct (2) such that the power line of the wiring duct (2) not corresponding to the structure of the electrical equipment (3) and the conductive part (34) of the electrical equipment (3) are electrically connected.

[0118] The electrical equipment system (200) of the tenth aspect includes the duct system (100) of the ninth aspect and the electrical equipment (3).

[0119] According to the above configuration, there is an advantage that an electrical equipment system can be provided that allows the electrical equipment (3) to be attached to the wiring duct (2) such that the power line of the wiring duct (2) not corresponding to the structure of the electrical equipment (3) and the conductive part (34) of the electrical equipment (3) are electrically connected.

Description of Reference Numerals

[0120] 200 Electrical equipment system 100 Duct system 1 Adapter 11 Locking part 12 Holding part 13 First contact part 14 Second contact part 15 Cover part 16 Housing 21 First power line 22 Second power line 2 Wiring duct 3 Electrical equipment 34 Conductive part 121 Support part 140 Contact part 151 Outer wall part 152 Inner wall part B1 First block B2 Second block D1 First dimension D2 Second dimension D3 Third dimension X1 Predetermined direction X2 Opposite direction

Claims

1. An adapter for attaching an electrical device to a wiring duct having a plurality of power lines, a locking portion that locks to the wiring duct, a holding portion that holds the electrical device, a first contact portion that is in electrical contact with any one of the plurality of power lines, a first power line, in a state where the locking portion is locked to the wiring duct, a second contact portion that is electrically connected to the first contact portion and is in electrical contact with a conductive portion provided in the electrical device in a state where the holding portion holds the electrical device, and the plurality of power lines are arranged in a predetermined direction in which the wiring duct and the adapter are arranged side by side in a state where the locking portion is locked to the wiring duct, a first dimension in the predetermined direction between a contact portion of the second contact portion that contacts the conductive portion and the holding portion is smaller than a second dimension in the predetermined direction between the first power line and the locking portion, and is the same as a third dimension in the predetermined direction between a second power line, which is different from the first power line among the plurality of power lines, and the locking portion. Adapter.

2. The wiring duct includes two sets of power lines as the plurality of power lines, the first dimension is smaller than the second dimension, which is a dimension in the predetermined direction between the first power line, which is one of the two sets of power lines, and the locking portion, and is the same as the third dimension, which is a dimension in the predetermined direction between the second power line, which is the remaining power line of the two sets of power lines, and the locking portion. The adapter according to claim 1.

3. The holding portion has a support portion that supports the load of the electrical device, and the support portion is formed of a metal material. The adapter according to claim 1.

4. The second contact portion is a pair of plate members facing each other along an opposing direction intersecting the predetermined direction, The support portion is formed with a stopper that restricts movement of the electric device in a direction intersecting both the predetermined direction and the opposing direction in a state where the holding portion holds the electric device. The adapter according to claim 3.

5. Further comprising a cover portion covering at least a part of the second contact portion, The adapter according to claim 1.

6. The second contact portion is a pair of plate members facing each other, Inner surfaces of each of the pair of plate members are in electrical contact with the conductive portion in a state where the holding portion holds the electric device, The cover portion has an outer wall portion covering at least a part of an outer surface of each of the pair of plate members, The outer wall portion is formed of a heat-resistant material. The adapter according to claim 5.

7. The second contact portion is a pair of plate members facing each other, Inner surfaces of each of the pair of plate members are in electrical contact with the conductive portion in a state where the holding portion holds the electric device, The cover portion has an inner wall portion covering a part of the inner surface of each of the pair of plate members, The adapter according to claim 5.

8. Further comprising a cover portion covering at least a part of the second contact portion, and a housing that houses the cover portion, and is formed by combining a second block including the locking portion, the first contact portion, and the second contact portion with a first block including the holding portion, the cover portion, and the housing. The adapter according to claim 1.

9. The adapter according to claim 1, and the wiring duct, comprising a duct system.

10. The duct system according to claim 9, and the electrical equipment, comprising an electrical equipment system.

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