JP7457927B2 - hub device - Google Patents

Description

The present disclosure relates to a hub device, and more particularly, to a hub device to which communication wiring can be connected.

As a conventional example of a hub device, a switching hub device described in Patent Document 1 is exemplified. The switching hub device described in Patent Document 1 includes a connector group in which a plurality of connectors are arranged, and a lock release member. The connector has a hole into which the cable is inserted and a locking mechanism that locks the inserted cable. The lock release member presses a lock release mechanism provided on the cable to release the lock from the connector.

Japanese Patent Application Publication No. 2011-048676

Conventionally, hub devices are placed and used in racks. However, if a rack is required to install the hub device, the rack may occupy space in a room or the like and become a nuisance.

The present disclosure aims to provide a hub device that is less likely to get in the way.

A hub device according to one aspect of the present disclosure includes a body, a plurality of terminal parts, a mounting part, and a holding member. The plurality of terminal portions are provided on the body. The plurality of terminal portions can electrically connect a plurality of wires. The plurality of wires include at least a plurality of communication wires for communication. The attachment portion is a part for attaching the body to a structure that constitutes a part of a building. The holding member is provided separately from the plurality of terminal parts. The holding member holds at least one wiring among the plurality of wirings electrically connected to the plurality of terminal parts. The holding member protrudes from the body.
A hub device according to another aspect of the present disclosure includes a body, a plurality of terminal parts, a mounting part, and a holding member. The plurality of terminal portions are provided on the body. The plurality of terminal portions can electrically connect a plurality of wires. The plurality of wires include at least a plurality of communication wires for communication. The attachment portion is a part for attaching the body to a structure that constitutes a part of a building. The holding member is provided separately from the plurality of terminal parts. The holding member holds at least one wiring among the plurality of wirings electrically connected to the plurality of terminal parts. The holding member has a base end coupled to the body and two arms protruding from the base end. The protruding tips of each of the two arm portions face each other with a gap between them.

In the hub device according to one aspect of the present disclosure, the possibility of getting in the way is reduced.

FIG. 1 is a schematic block diagram showing a state in which devices and the like are connected to a hub device according to a first embodiment. FIG. 2 is a front view of the hub device same as above. FIG. 3 is a side view of the hub device. FIG. 4 is a bottom view of the hub device with the mounting portion and the cover portion removed. FIG. 5 is an exploded perspective view of the hub device same as above. FIG. 6 is a front perspective view of a main portion of the hub device. FIG. 7 is a perspective view of the hub device according to the second embodiment. FIG. 8 is a plan view of a surface of the above hub device on which a plurality of terminal portions are provided. FIG. 9 is a perspective view of a hub device according to the third embodiment. FIG. 10A is a front view of the hub device according to the fourth embodiment. FIG. 10B is a bottom view of essential parts of the hub device same as above. FIG. 10C is a side view of essential parts of the hub device same as above. FIG. 11 is an exploded perspective view of the hub device according to the fifth embodiment. FIG. 12 is a perspective view of the above hub device with the lid removed. FIG. 13 is a perspective view of the hub device with the mounting portion and the cover portion removed. FIG. 14 is a plan view of the above hub device with the cap removed. FIG. 15 is a sectional view of the hub device same as above.

Hereinafter, a hub device according to an embodiment will be described using the drawings. However, each embodiment described below is only a part of various embodiments of the present disclosure. Each of the embodiments described below can be modified in various ways depending on the design, etc., as long as the objective of the present disclosure can be achieved. Furthermore, each of the drawings described in each of the embodiments below is a schematic drawing, and the ratio of the size and thickness of each component in the drawing does not necessarily reflect the actual size ratio. do not have.

(Embodiment 1)
(Configuration of hub device)
The configuration of the hub device 1 of this embodiment will first be described with reference to FIG. 1. More specifically, the hub device 1 is a switching hub device that performs processing to prevent collisions of signals transmitted and received between a plurality of devices 100. The plurality of devices 100 are, for example, a computer terminal, a network camera, an IP (Internet Protocol) telephone, a wireless access point, and the like. The computer terminal is, for example, a controller that accepts operations for setting the operation of the hub device 1. The controller performs serial communication with the hub device 1, for example. Further, other examples of the plurality of devices 100 are lighting equipment, air conditioning equipment, audio equipment, and the like.

The hub device 1 has a plurality of terminal portions 7 (see FIGS. 2 and 4). The hub device 1 is, for example, an L2 switch that has a function of storing the correspondence between a MAC (Media Access Control address) address and a terminal section 7 (port). That is, the hub device 1 has a function of creating a correspondence table showing the correspondence between the identification information (for example, MAC address) of the device 100 and the terminal unit 7 connected to the device 100. This function can be realized, for example, by a technique of creating a forwarding database (FDB). Since the technology for creating a forwarding database is well known, its explanation will be omitted.

As shown in FIGS. 2 to 4, the hub device 1 includes a body 2, a plurality (12) of terminal portions 7, and a mounting portion 8. In the following, when the plurality of terminal parts 7 are not distinguished, each is referred to as a terminal part 7, and when the plurality of terminal parts 7 are to be distinguished, they are respectively referred to as terminal parts P1 to P10, 71, and 72.

The hub device 1 further includes a plurality (12) of covers 11. Each of the plurality of covers 11 is cylindrical. The plurality of covers 11 include an opening 12 at a first end in the axial direction. The plurality of covers 11 are made of, for example, metal and resin. In the cover 11, resin is provided on the inner surface of the cylindrical metal. The plurality of covers 11 correspond to the plurality of terminal portions 7 on a one-to-one basis. Each of the plurality of covers 11 is provided around the corresponding terminal portion 7 . Each of the plurality of covers 11 covers the corresponding terminal portion 7 by the periphery of the opening 12 .

A plurality of terminal portions 7 are provided on the body 2. The body 2 includes a plurality of (10) insertion holes 421 in one-to-one correspondence with the plurality of terminal parts P1 to P10, and a plurality (two) insertion holes in one-to-one correspondence with the plurality of terminal parts 71 and 72. 321 are formed. The plurality of terminal parts 7 are each inserted into the corresponding insertion hole 421 or 321, and are exposed to the outside of the body 2 through the corresponding insertion hole 421 or 321.

Among the plurality of terminal sections 7, the plurality of terminal sections P1 to P10 are each LAN (Local Area Network) ports. Each of the plurality of terminal parts P1 to P10 can be electrically connected to a communication wiring W1. That is, the plurality of terminal parts P1 to P10 can be electrically connected to the same number (10) of the plurality of communication wirings W1. Here, each communication wiring W1 is a wiring capable of transmitting both electric power and signals. More specifically, each communication wiring W1 is a wiring compatible with PoE (Power over Ethernet). Some of the plurality of terminal sections P1 to P10 are terminal sections for power input and signal input/output, and the remaining terminal sections among the plurality of terminal sections P1 to P10 are for power output and signal input/output. This is a terminal section for input and output.

The terminal section 71 is a LAN port. The terminal portion 71 can be electrically connected to the communication wiring W2. The wiring W2 is a wiring that can transmit only signals among power and signals. The terminal portion 72 can be electrically connected to the power supply wiring W3. The wiring W3 is a wiring that can transmit only electric power among electric power and signals.

While the corresponding wiring W1 (or W2, W3) can be connected to each terminal portion 7, the corresponding wiring W1 (or W2, W3) can be removed from each terminal portion 7. That is, each terminal portion 7 is configured to allow the corresponding wiring W1 (or W2, W3) to be inserted or removed. More specifically, in each terminal portion 7, the corresponding wiring W1 (or W2, W3) can be inserted and connected through the opening 12 of the corresponding cover 11, and can be removed. More specifically, a plug is provided at the tip of each of the wirings W1 and W2, and the plug has a claw. With the wiring W1 (or W2) electrically connected to the terminal portion 7, the claw of the plug catches the cover 11, thereby locking the plug to the cover 11. When the claw of the plug comes off the cover 11, the plug is unlocked from the cover 11, and the wiring W1 (or W2) can be removed from the terminal portion 7. On the other hand, the wiring W3 is provided with a mounting structure including screws, and the cover 11 around the terminal portion 72 and the mounting structure are screwed together, thereby fixing the wiring W3 to the terminal portion 72. By loosening the screw, the wiring W3 can be removed from the terminal portion 72.

As shown in FIG. 1, when a plurality of devices 100 are connected by a hub device 1 and a plurality of wires W1, signals can be transmitted between the plurality of devices 100. Further, the hub device 1 can supply power to a PoE-compatible device among the plurality of devices 100 via the plurality of wirings W1. The hub device 1 can also receive power supply from a device compatible with PoE among the plurality of devices 100 via the plurality of wirings W1.

Since a plurality of wires W1 can be connected to the hub device 1, the upper limit of the amount of power to be transmitted is larger than when only one wire W1 can be connected. Further, when some of the plurality of wirings W1 become unable to transmit power due to a malfunction or the like, power can be transmitted using the remaining wirings W1. In other words, the power transmission function in the hub device 1 can be made redundant.

The hub device 1 can receive power supply from a power source such as a commercial power supply PS1 or the device 100 via a plurality of wirings W1, and can also supply the supplied power to another device 100 (so-called power supply). Note that the hub device 1 may perform at least one of power supply and power reception with one or more devices 100 by wireless power supply. Thereby, for example, it is possible to wirelessly supply power from the hub device 1 to a device such as a mobile terminal located at a location where the hub device 1 is installed.

A management device 110 (controller) that configures and manages the hub device 1 and the hub device 1 are connected by a wiring W2, and the hub device 1 transmits signals to and from the management device 110. A power converter 120 is provided outside the hub device 1 . Power converter 120 converts AC power to DC power. Power converter 120 is placed, for example, in a space under the ceiling. The power converter 120 is connected to a power source such as a commercial power source PS1. The terminal portion 72 (see FIG. 2) of the hub device 1 and the power converter 120 are connected by a wiring W3, and the hub device 1 receives a supply of (DC) power from the power converter 120. That is, the terminal section 72 is a terminal section for inputting electric power, and receives input of electric power output from a power source such as the commercial power source PS1 and converted by the power converter 120. The voltage of the DC power supplied from the power converter 120 to the terminal section 72 is, for example, 54V. The power converter 120 may supply power not only to the hub device 1 but also to a lighting fixture attached to the ceiling. Further, the power converter 120 may be built into the hub device 1.

In FIG. 2, the attachment part 8 is a member for attaching the body 2 to a structure 300 that constitutes a part of a building. Examples of the structure 300 are ceiling materials (ceiling boards, etc.), wall materials, floor materials, beams, and columns. In this embodiment, the structure 300 will be described as a plate-shaped ceiling material. The thickness of the structure 300 is, for example, 25 mm.

In the hub device 1, the body 2 can be attached to the structure 300 using the attachment portion 8. Therefore, compared to a case where the hub device 1 is placed on a desk, a shelf (rack), a box for storing the hub device 1, or the like, the possibility that the hub device 1 becomes a hindrance can be reduced. Even if it is difficult to secure a space to place the hub device 1 on an existing desk, shelf, or box, by attaching the hub device 1 to the structure 300, the installation location for the hub device 1 can be secured. . Furthermore, even if it is difficult to secure space in a building to install a new shelf or box for installing the hub device 1, by attaching the hub device 1 to the structure 300, the installation location of the hub device 1 can be changed. Can be secured.

In recent years, with the spread of IoT (Internet of Things) devices, many devices such as sensors are installed in spaces within buildings, causing the problem that it is difficult to secure a place to install the hub device 1 that communicates with these devices. obtain. Such problems can be addressed by attaching the hub device 1 to the structure 300.

Furthermore, when the device 100 connected to the hub device 1 is placed in a space under the ceiling, compared to the case where the hub device 1 is placed on a desk, shelf, box, etc., the device 100 extending from the ceiling into the room Reduces the number of wires. Therefore, the appearance of the room can be improved.

The structure 300 includes a first surface 301 and a second surface 302 opposite to the first surface 301. The first surface 301 is exposed to a concealed portion 400 of the building. The concealed portion 400 is specifically a space above the ceiling. That is, in the structure 300, the first surface 301 is the upper surface and the second surface 302 is the lower surface. Note that, when the structure 300 is a wall material, the space behind the wall corresponds to the concealed portion 400, the first surface 301 is the rear surface of the wall, and the second surface 302 is the surface of the wall facing the room. When the structure 300 is a floor material, the space under the floor corresponds to the concealed portion 400, the first surface 301 is the lower surface, and the second surface 302 is the upper surface.

A hole 330 is formed in the structure 300, penetrating from the first surface 301 to the second surface 302. The hole 330 is circular. The hole 330 is formed, for example, using a hole saw or the like.

The body 2 is formed, for example, from a metal or resin material. As shown in FIG. 5, the body 2 has an insertion portion 3 that is inserted into the hole 330. The insertion portion 3 is semi-cylindrical. When the body 2 is attached to the structure 300, the axial direction of the insertion portion 3 is along the up-down direction. In the following, the up-down direction when the body 2 is attached to the structure 300 is defined as the up-down direction of the hub device 1. However, this definition is not intended to limit the direction in which the hub device 1 is used.

The insertion section 3 has a cavity inside. This cavity houses a board on which a circuit for making the hub device 1 function as a switching hub device is mounted, etc.

The body 2 further has an extension 4 which is connected to the insertion part 3. The extension part 4 is plate-shaped. The extension portion 4 extends in a direction along the first surface 301 with the insertion portion 3 as a base point when viewed from the side (above) facing the first surface 301 . More specifically, the extension portion 4 extends from the first end (upper end) of the insertion portion 3 in the axial direction in a direction perpendicular to the axial direction. The outer peripheral shape of the extension part 4 when viewed from the top and bottom is semicircular. When viewed from above and below, the extension part 4 and the insertion part 3 are semicircular and concentric and have the same diameter. The extension part 4 has a larger area than the insertion part 3 when viewed from the top and bottom.

The hub device 1 further includes a holding member 5 connected to the extension 4. The holding member 5 holds a plurality of wirings (a plurality of wirings W1 and wirings W2 and W3). As shown in FIGS. 5 and 6, the holding member 5 has a rectangular base end 51 when viewed from the top-bottom direction, and two arms 52 protruding from the base end 51. The base end 51 is plate-shaped. The base end 51 is connected to the extension 4 by screwing. The two arms 52 are plate-shaped. Each arm 52 is arc-shaped when viewed from the top-bottom direction, and the radial direction of the arc coincides with the thickness direction of each arm 52. The two arms 52 protrude from both ends of the base end 51 in the longitudinal direction. The protruding tips 521 of the two arms 52 face each other with a gap between them. In addition, each of the two arms 52 is bent toward the center of the arc at the protruding tip 521. The two arms 52 are elastically deformable so as to bend. The two arms 52 are provided separately from the multiple terminals 7 (see Figure 4).

As shown in FIG. 6, a plurality of wires W1 are passed through a space 53 surrounded by the base end portion 51 and the two arm portions 52. As shown in FIG. Although not shown in FIG. 6, the wirings W2 and W3 are also passed through the space 53. The plurality of wirings W1 and wirings W2 and W3 are arranged in the space 53 along the vertical direction. As a result, movement of the plurality of wirings W1 and wirings W2 and W3 in a direction perpendicular to the vertical direction is restricted. That is, the plurality of wirings W1 and wirings W2 and W3 are held by the holding member 5 in the space 53. For example, after the plurality of wirings W1 and the wirings W2 and W3 are electrically connected to the plurality of terminal parts 7 (see FIGS. 2 and 4), the plurality of wirings W1 and the wirings W2 and W3 are inserted from the gap between the two arm parts 52. By introducing the wires into the space 53, the plurality of wirings W1 and the wirings W2 and W3 are held by the holding member 5.

If the plurality of wirings W1 and wirings W2 and W3 are held by the holding member 5, when inserting the insertion part 3, the extension part 4, and the holding member 5 into the hole 330 formed in the structure 300 or pulling them out from the hole 330. In addition, the possibility that the plurality of wirings W1 and wirings W2 and W3 become an obstacle can be reduced.

The configuration in which the insertion portion 3, extension portion 4, and holding member 5 of the body 2 are combined has a circular shape when viewed from above. The diameter of the hole 330 formed in the structure 300 is larger than the diameter of the combined structure of the insertion part 3, the extension part 4, and the holding member 5. The diameter of the hole 330 is, for example, 150 mm or 100 mm.

The body 2 further includes a lid part 6. The lid part 6 is located below the extension part 4. Further, the lid portion 6 is located below the plurality of terminal portions 7. The lid part 6 is connected to the insertion part 3 via a stopper 89 of the attachment part 8, which will be described later. The lid portion 6 is in contact with the second end (lower end) of the insertion portion 3 in the axial direction. The lid portion 6 is disc-shaped. The thickness direction of the lid portion 6 is along the up-down direction. The lid portion 6 extends in a direction along the second surface 302 with the insertion portion 3 as a base point when viewed from the side (bottom) facing the second surface 302 (see FIG. 2) of the structure 300. More specifically, the lid portion 6 extends from the second end (lower end) of the insertion portion 3 in the axial direction in a direction perpendicular to the axial direction. The lid part 6 is concentric with the insertion part 3 when viewed from the top and bottom. The diameter of the lid portion 6 is larger than the diameter of the insertion portion 3 when viewed from the top and bottom. A peripheral edge 61 of the lid 6 stands upward. The lid part 6 has four locking protrusions 611 on the peripheral edge 61 for attaching the lid part 6 to the attachment part 8. The lid portion 6 is formed with an insertion hole 62 through which the wiring W1, W2, or W3 can pass.

As shown in FIG. 4, among the plurality of terminal parts 7, the plurality of terminal parts P1 to P10 are provided on the extension part 4 of the body 2.

A plurality of (10 in FIG. 4) insertion holes 421 are formed in the lower surface 42 of the extension part 4. The plurality of insertion holes 421 correspond one-to-one with the plurality of terminal parts P1 to P10. Further, the plurality of insertion holes 421 correspond one-to-one with ten covers 11 among the plurality (12) of covers 11. A corresponding cover 11 is arranged inside each insertion hole 421. On the inside of each cylindrical cover 11, corresponding terminal portions among the plurality of terminal portions P1 to P10 are arranged. Each of the terminal portions P1 to P10 is exposed to the outside of the body 2 through the opening 12 of the corresponding cover 11. The plurality of terminal parts P1 to P10 are arranged in two rows. On the lower surface 42 of the extension part 4, port numbers 1 to 10 of each terminal part P1 to P10 are written in a portion adjacent to each terminal part P1 to P10.

The opening 12 of each cover 11 on the lower surface 42 of the extension portion 4 is formed so that the terminal portions P1 to P10 are exposed when viewed from below. That is, the axial direction of each cylindrical cover 11 is along the vertical direction, and the opening 12 is formed at the lower end of the cover 11. Note that the opening 12 of each cover 11 may be formed so that the terminal portions P1 to P10 are exposed when viewed diagonally from below. For example, by arranging each cover 11 so that the axial direction of each cover 11 is diagonal, the terminal portions P1 to P10 may be exposed when viewed diagonally from below. By exposing the terminal parts P1 to P10 when viewed from below or diagonally below, there is a greater possibility that dust and water droplets will adhere to the terminal parts P1 to P10 compared to when the terminal parts P1 to P10 are exposed when viewed from above. is reduced.

The multiple wirings W1 electrically connected to the multiple terminals P1 to P10 are arranged so that they pass from bottom to top through the space 53 provided in the holding member 5 when the multiple terminals P1 to P10 are used as base points.

The hub device 1 further includes a plurality of (10 in FIG. 4) indicator lights 13. Each of the plurality of indicator lights 13 is composed of, for example, an LED (Light Emitting Diode). The plurality of indicator lights 13 are provided on the lower surface 32 of the insertion section 3. The plurality of indicator lights 13 correspond one-to-one with the plurality of terminal parts P1 to P10. The lighting state of each indicator light 13 changes depending on the communication state at the corresponding terminal among the plurality of terminals P1 to P10. More specifically, each indicator light 13 lights up when the corresponding terminal section among the plurality of terminal sections P1 to P10 is communicating with the device 100 (see FIG. 1) via the wiring W1. Turns off when not in use.

As shown in FIG. 2, the insertion portion 3 is provided with terminal portions 71 and 72. A plurality of (two in FIG. 2) insertion holes 321 are formed in a surface 33 of the semi-cylindrical insertion portion 3 that corresponds to the cross section of the cylinder. The plurality of insertion holes 321 correspond one-to-one with the plurality of terminal parts 71 and 72. Further, the plurality of insertion holes 321 correspond one-to-one with two covers 11 among the plurality (12) of covers 11. A corresponding cover 11 is arranged inside each insertion hole 321. On the inside of each cover 11, corresponding terminal portions among the plurality of terminal portions 71 and 72 are arranged. Each terminal portion 71, 72 is exposed to the outside of the body 2 through the corresponding opening 12 of the cover 11.

On the surface 33 of the insertion portion 3, a layout diagram F1 of the plurality of terminal portions P1 to P10 is written. That is, the arrangement of the plurality of terminal parts P1 to P10 on the lower surface 42 of the extension part 4 is copied in the arrangement diagram F1. The layout diagram F1 is printed directly on the surface 33, for example. Note that a sticker on which the layout diagram F1 is printed may be attached to the surface 33.

The body 2 is separate from the attachment part 8. The attachment part 8 is attached to the structure 300. The body 2 is attached to the structure 300 via the attachment part 8 by being attached to the attachment part 8 .

The hub device 1 further includes a mounting pin 9. The mounting pin 9 is coupled to the extension portion 4 of the body 2. The body 2 is attached to the mounting portion 8 via the mounting pin 9.

As shown in FIGS. 2 and 5, the mounting portion 8 includes first to seventh frame members 81 to 87, two wings 88, and a stopper 89. These are connected to each other by screws, for example.

The first to seventh frame members 81 to 87 have rectangular plate shapes. The second and third frame members 82 and 83 overlap. The fourth and fifth frame members 84 and 85 overlap. Second and third frame members 82 and 83 are coupled to a first end of the first frame member 81 in the longitudinal direction. Fourth and fifth frame members 84 and 85 are coupled to the second end of the first frame member 81 in the longitudinal direction. The second to fifth frame members 82 to 85 extend from the first frame member 81 in the thickness direction (downward) of the first frame member 81. As a result, the first to fifth frame members 81 to 85 are combined in a U-shape.

The sixth frame member 86 extends from the first frame member 81 in the lateral direction of the first frame member 81 . The thickness direction of the sixth frame material 86 coincides with the thickness direction of the first frame material 81. The attachment part 8 further includes a connecting member 861. The connecting member 861 is coupled to the sixth frame member 86. A mounting pin 9 is attached to the connecting member 861. A connecting hole 862 that is a through hole passing through the sixth frame member 86 and the connecting member 861 is formed in the attachment portion 8 . The attachment pin 9 is inserted into the connection hole 862.

The body 2 can be attached to and detached from the attachment part 8. The body 2 is attached to and detached from the attachment portion 8 via attachment pins 9. The connecting member 861 has a claw on which the mounting pin 9 is hooked, and a spring that pushes the claw toward the mounting pin 9. When the attachment pin 9 is inserted into the connection hole 862 from bottom to top, the claw of the connection member 861 is pushed by the attachment pin 9 and moves. When the mounting pin 9 moves to a predetermined position, the mounting pin 9 and the claw are no longer in contact with each other. Therefore, the mounting pin 9 no longer applies pressure to the claw, and the spring moves the claw toward the mounting pin 9 and hooks on the mounting pin 9. This prevents the mounting pin 9 from moving downward. That is, the body 2 is attached to the attachment portion 8 via the attachment pin 9. When the attachment pin 9 moves further upward, the hook between the attachment pin 9 and the claw is released, and the attachment pin 9 can be removed from the connecting member 861. Thereby, the body 2 can be removed from the mounting portion 8. Note that the mounting pin 9 may house a claw, and the claw protruding from the mounting pin 9 may be configured to be caught on the connecting member 861. For example, when the mounting pin 9 is pushed from the axial direction of the mounting pin 9, the claw protrudes from the mounting pin 9, and when the mounting pin 9 is pushed again, the claw is housed in the mounting pin 9. may have been done. The structure of the mounting pin 9 and the connecting member 861 as described above may also be used as a structure for mounting lighting equipment such as a downlight to a ceiling material.

The seventh frame member 87 is coupled to the end of the sixth frame member 86 on the opposite side to the first frame member 81 side. The seventh frame member 87 extends in the thickness direction of the sixth frame member 86. The direction in which the seventh frame member 87 extends from the sixth frame member 86 is the same direction (downward) as the direction in which the second to fifth frame members 82 to 85 extend from the first frame member 81. The seventh frame member 87 is formed with two screw insertion holes 871 through which screws for connecting the seventh frame member 87 and the insertion portion 3 of the body 2 are passed.

The tips (lower ends) of each of the second frame member 82 , the fourth frame member 84 , and the seventh frame member 87 are coupled to a stopper 89 . The stopper 89 has an annular shape. Connection points between each of the second frame material 82, the fourth frame material 84, and the seventh frame material 87 and the stopper 89 are arranged in this order at intervals of 90 degrees in the circumferential direction of the stopper 89.

When the insertion part 3 of the body 2 is inserted into the hole 330 in the structure 300 and the body 2 tries to go up too far, the stopper 89 comes into contact with the second surface 302 of the structure 300, so that the body 2 does not move upward. This will prevent it from going too far.

The lid part 6 can be attached to the stopper 89. Four (three in FIG. 5) grooves 891 are formed in the stopper 89. The four grooves 891 are arranged at intervals of 90 degrees in the circumferential direction of the stopper 89. The four grooves 891 correspond one-to-one with the four locking protrusions 611 of the lid part 6. A corresponding locking protrusion 611 is hooked into each of the four grooves 891. Thereby, the lid portion 6 is attached to the stopper 89.

The attachment portion 8 further includes two supports 881 (see FIG. 2) that correspond one-to-one to the two wing portions 88. The end (lower end) of the third frame member 83 on the side opposite to the first frame member 81 is bent, and one of the two supports 881 is bent so as to bridge between this bent part and the stopper 89. One side is provided. Similarly, the end (lower end) of the fifth frame member 85 on the opposite side to the first frame member 81 is bent, and two support columns are connected to bridge between this bent part and the stopper 89. 881, the other one is provided.

Each of the two wing portions 88 is rod-shaped. Each of the two wing portions 88 has a through hole into which a corresponding support 881 is inserted. Each of the two wing portions 88 can rotate around the corresponding support 881 as an axis.

A thread and a thread groove are formed on the outer surface of each support column 881. Threads and thread grooves that engage with the threads and thread grooves of the support columns 881 are formed on the inner surface of the through-hole in each wing portion 88 through which the support columns 881 are passed. By rotating the support column 881 with the support column 881 passed through the through hole in the wing section 88, the wing section 88 moves in the axial direction of the support column 881. Thereby, the distance between the two wings 88 and the stopper 89 can be adjusted.

(Attaching the hub device to the structure)
Next, an example of a procedure for mounting the hub device 1 to the structure 300 will be described.

As shown in FIG. 2, the mounting portion 8 is inserted into a hole 330 formed in the structure 300. When the mounting portion 8 is inserted into the hole 330, the rotation angle of the two wing portions 88 is set to a first rotation angle. The first rotation angle is the rotation angle when the longitudinal direction of the wing portion 88 is along the short direction of the first frame material 81 (the depth direction of the paper in FIG. 2). After the mounting portion 8 is inserted into the hole 330, the rotation angle of the two wing portions 88 is set to a second rotation angle. The second rotation angle is the rotation angle when the longitudinal direction of the wing portion 88 is along the longitudinal direction of the first frame material 81 (the left-right direction of the paper in FIG. 2). The two wing portions 88 rotate 90 degrees between the first rotation angle and the second rotation angle. When the rotation angle of the two wings 88 is the first rotation angle, the length of the two wings 88 in the radial direction of the hole 330 is shorter than when the rotation angle is the second rotation angle, so that the mounting portion 8 is easily inserted into the hole 330. When the rotation angle of the two wings 88 is the second rotation angle, the two wings 88 extend outside the hole 330 and contact the first surface 301 of the structure 300. In other words, the mounting portion 8 is placed on the structure 300 so that the two wings 88 contact the first surface 301 of the structure 300.

Next, the structure 300 is sandwiched between the two wings 88 and the stopper 89 by rotating the support 881 and moving the wings 88 in the axial direction of the support 881.

A plurality of wirings W1, and wirings W2 and W3 are electrically connected to the plurality of terminal portions 7 provided on the body 2. Furthermore, the plurality of wirings W1 and wirings W2 and W3 are held by the holding member 5. The plurality of wirings W1 and the wirings W2, W3 are electrically connected to the plurality of terminal parts 7, the plurality of wirings W1 and the wirings W2, W3 are held by the holding member 5, and the mounting part 8 is connected to the first part of the structure 300. After being placed on the surface 301, the body 2 is attached to the attachment part 8.

More specifically, first, the extension part 4, the holding member 5, and the insertion part 3 of the body 2 are inserted into the hole 330 formed in the structure 300. Next, the attachment pin 9 provided on the body 2 is attached to the connecting member 861. Thereafter, the four locking protrusions 611 (see FIG. 5) of the lid 6 are hooked into the four grooves 891 (see FIG. 5) of the stopper 89 (see FIG. 5), so that the lid 6 is attached to the stopper 89. .

Furthermore, the seventh frame member 87 (see FIG. 5) may be joined to the insertion portion 3 by passing screws through two screw insertion holes 871 (see FIG. 5) formed in the seventh frame member 87 (see FIG. 5).

Through the above steps, the hub device 1 is attached to the structure 300. Further, the hub device 1 can be removed from the structure 300 by performing an operation opposite to that for attaching the hub device 1 to the structure 300.

When the hub device 1 is attached to the structure 300 and the cover portion 6 is removed from the stopper 89, the multiple terminal portions 7 are exposed in the space below the body 2. Therefore, even when the body 2 is attached to the structure 300 via the attachment portion 8, the multiple wires W1 and the wires W2 and W3 can be attached and detached to each terminal portion 7. When the hub device 1 is attached to the structure 300 and the cover portion 6 is removed from the stopper 89, the multiple indicator lights 13 are also exposed in the space below the body 2. Therefore, the communication state of each terminal portion P1 to P10 can be confirmed by checking the lighting state of each indicator light 13. The hub device 1 may be attached to the structure 300 and used with the cover portion 6 removed from the stopper 89.

Further, in the hub device 1, a space SP1 exists below the extension portion 4 and the holding member 5. A plurality of terminal portions 7 provided in the insertion portion 3 are exposed to the space SP1. Therefore, the operator can insert his hand or the like into the space SP1 and perform the work of electrically connecting the plurality of wirings W1 and the wirings W2 and W3 to the plurality of terminal portions 7.

When the hub device 1 is inserted into the hole 330 in the structure 300, the space SP1 is a space surrounded by the inner edge of the hole 330 and the insertion part 3. The space SP1 is preferably large enough to accommodate an elliptical cylinder with a major axis of 120 mm to 650 mm and a minor axis of 80 mm to 620 mm. In this case, it is easy to insert a hand into the space SP1 to insert and remove the wiring W1, W2, and W3. The space SP1 is more preferably large enough to accommodate an elliptical cylinder with a major axis of 120 mm to 200 mm and a minor axis of 80 mm to 170 mm, and even more preferably large enough to accommodate an elliptical cylinder with a major axis of 120 mm to 150 mm and a minor axis of 80 mm to 120 mm.

(Modification of Embodiment 1)
Modifications of Embodiment 1 are listed below. The following modified examples may be realized by appropriately combining them.

The attachment of the body 2 to the attachment portion 8 is not limited to attachment using the attachment pin 9. For example, the body 2 may be attached to the attachment part 8 by being screwed to the attachment part 8. Further, the body 2 may be attached to the attachment portion 8 by rotating the body 2 while the threads and grooves provided on the body 2 and the attachment portion 8 are engaged with each other.

In the attachment part 8, the number of wings 88 is not limited to two, and may be one or three or more.

The cover 11 that covers the terminal portion 7 may be formed integrally with the body 2.

The attachment portion 8 does not have to be directly attached to the structure 300. The attachment portion 8 may be indirectly attached to the structure 300 by being attached to a member such as a hanging bolt fixed to the structure 300.

The shape of the holding member 5 is not limited to the shape shown in the first embodiment. For example, the holding member 5 may be a member having a through hole formed therein, and may be configured such that a plurality of wirings W1, W2, and W3 can pass through the through hole. Alternatively, the holding member 5 may be a member in which a notch is formed, and the plurality of wirings W1, W2, and W3 may be passed through the inside of the notch.

The stopper 89 may be able to selectively attach a plurality of types of lid portions 6. The plurality of types of lid portions 6 have different colors, for example, and have the same configuration in other respects. The builder or the like can select a lid part 6 having the same color or a color that harmonizes with the color of the structure 300 such as a ceiling material from among the plurality of types of lid parts 6, and attach it to the stopper 89. Thereby, the appearance of the hub device 1 can be improved.

The terminal portion 7 and the wirings W1, W2, and W3 may have shapes conforming to, for example, the USB standard, the HDMI (registered trademark) standard, the HDBaseT (registered trademark) standard, or the RJ45 standard.

The hub device 1 may include a fall prevention wire. A first end of the fall prevention wire is attached to a structure 300 such as a ceiling material, and a second end is attached to at least one of the body 2 and the attachment part 8 of the hub device 1. When the body 2 and the attachment part 8 come off the structure 300, the possibility that the body 2 and the attachment part 8 will fall can be reduced by the fall prevention wire.

The function of the indicator light 13 is not limited to the function of displaying the communication status of the hub device 1. The indicator light 13 may indicate, for example, whether there is an abnormality in the hub device 1. Further, the hub device 1 may include a notification section that notifies by sound whether or not there is an abnormality in the hub device 1. The notification section includes, for example, a buzzer. Further, at least one of the indicator light 13 and the notification unit may notify the presence or absence of an abnormality by light or sound in response to an inspection operation by a worker during maintenance of the hub device 1.

The hub device 1 may have an AC power supply terminal that receives AC power. Furthermore, the AC power supply terminal of the hub device 1 may be a forwarding wiring terminal. The AC power supplied to the forwarding wiring terminal from a commercial power source PS1 or the like via wiring is supplied to the hub device 1. Furthermore, the AC power supplied to the hub device 1 is supplied to the device 100 via a wiring that is forwarded to the forwarding wiring terminal.

Further, the hub device 1 may include an outlet having an AC power terminal. The outlet is built into the body 2 of the hub device 1, for example.

The hub device 1 may have one of the functions of receiving power through the AC power terminal and receiving power through the wiring W1, but by having both functions, one If power cannot be transmitted due to a malfunction or the like, power can be transmitted using the other device. In other words, the power transmission function in the hub device 1 can be made redundant.

The hub device 1 may notify the outside of information related to the amount of power supplied and the amount of power received. For example, the hub device 1 may notify a controller that controls the operation of the hub device 1 of information related to the amount of power supplied and the amount of power received. The controller is one of the multiple devices 100. The controller controls the operation of the other multiple devices 100. The hub device 1 may also notify a device 100 other than the controller of information related to the amount of power supplied and the amount of power received. The hub device 1 may also receive notification of information related to the amount of power supplied and the amount of power received from the controller or a device 100 other than the controller.

An example of the information regarding the amount of power supplied and the amount of received power is information on the amount of power used by each of the hub device 1 and the plurality of devices 100. Further, the controller may control power supply based on information on the amount of power used by each of the hub device 1 and the plurality of devices 100. For example, the controller may preferentially supply power to the device 100 with a higher power supply priority among the plurality of devices 100. Priority information may be stored in the controller in advance, or the priority may be determined by processing in the controller. Note that the controller may be included in the hub device 1.

Here, a hub device 1 that supplies power (hereinafter referred to as a "power feeding hub") and a hub device 1 that receives power from the hub device 1 that supplies power (hereinafter referred to as a "power receiving hub") are electrically connected. This section explains how to set priority when Note that one or more devices 100 may be connected to each of the power feeding hub and the power receiving hub. The power receiving hub may then supply power to one or more devices 100 electrically connected to the power receiving hub. The terms "power feeding hub" and "power receiving hub" are names representing the relationship between power feeding and power receiving between these two hub devices 1 at a certain point in time. In some cases, the power feeding hub may receive power from the power receiving hub, the device 100, etc., and the power receiving hub may also feed power to the power feeding hub, the device 100, etc.

By performing communication such as packet communication between the power feeding hub and the power receiving hub, the power feeding hub can obtain information that the power receiving hub is electrically connected. The power feeding hub may feed power to the power receiving hub preferentially over other devices 100. For example, when the power receiving hub and one or more devices 100 are electrically connected to the power feeding hub, the priority of power feeding to the power receiving hub is set higher than the priority of power feeding to the one or more devices 100. may be done.

Although the hub device 1 of the first embodiment is an L2 switch that has a function of storing the correspondence between the MAC address and the terminal section 7 (port), the hub device 1 is not limited to the L2 switch. The hub device 1 may be an L3 switch. In addition to the function as an L2 switch, the hub device 1 as an L3 switch has a function of storing the correspondence between IP addresses and terminal units 7 (ports) and performing routing using the IP addresses.

(Summary of Embodiment 1 and modifications of Embodiment 1)
The following aspects are disclosed from the first embodiment and the modification of the first embodiment described above.

The hub device 1 comprises a body 2, a plurality of terminals 7, and an attachment portion 8. The plurality of terminals 7 are provided on the body 2. The plurality of terminals 7 are capable of electrically connecting the plurality of wires W1, W2, and W3. The plurality of wires W1, W2, and W3 include at least the plurality of wires W1 and W2 for communication. The attachment portion 8 is a portion for attaching the body 2 to a structure 300 that constitutes part of a building.

According to the above configuration, the hub device 1 can be attached to the structure 300. Therefore, compared to a case where the hub device 1 is placed on a desk or the like, it is possible to reduce the possibility that the hub device 1 becomes an obstacle.

Furthermore, in the hub device 1, the structure 300 includes a first surface 301 and a second surface 302 opposite to the first surface 301. The first surface 301 is exposed to the concealment portion 400 of the building. The body 2 has an insertion section 3. The insertion portion 3 is inserted into a hole 330 that penetrates from the first surface 301 to the second surface 302 of the structure 300.

According to the above configuration, by inserting the insertion section 3 into the hole 330, at least a part of the insertion section 3 is placed inside the hole 330 or in the concealment section 400, and is not visible from outside the concealment section 400. It becomes difficult. Therefore, the hub device 1 becomes less noticeable.

Further, the hub device 1 further includes a stopper 89. The stopper 89 is connected to the insertion section 3. The stopper 89 extends in a direction along the second surface 302 with the insertion portion 3 as a base point when viewed from the side facing the second surface 302 .

According to the above configuration, in the operation of inserting the insertion portion 3 into the hole 330 formed in the structure 300, when the stopper 89 contacts the periphery of the hole 330, the stopper 89 is located at a position deeper than the position where the stopper 89 contacts the structure 300. It is possible to suppress the insertion section 3 from being moved to.

Further, in the hub device 1, the body 2 further includes an extension portion 4. The extension part 4 is connected to the insertion part 3. The extension portion 4 extends in a direction along the first surface 301 with the insertion portion 3 as a base point when viewed from the side facing the first surface 301. At least one of the plurality of terminal parts 7 is provided on the extension part 4.

The above configuration makes it easier to secure space for providing multiple terminals 7 than when there is no extension 4. Also, compared to when the extension 4 extends only in the direction from the second surface 302 toward the first surface 301, it is possible to prevent the space of the concealed portion 400 from being compressed in that direction.

Further, the hub device 1 further includes at least one cover 11. The cover 11 corresponds to at least one terminal part 7 among the plurality of terminal parts 7 on a one-to-one basis. Cover 11 includes an opening 12 . The cover 11 covers at least one terminal portion 7 by the periphery of the opening 12 . The opening 12 is formed so that at least one terminal portion 7 is exposed when viewed from below or diagonally below.

The above configuration reduces the possibility of dust and water droplets adhering to the terminal portion 7 compared to when the terminal portion 7 is exposed when viewed from above.

Further, in the hub device 1, the plurality of terminal portions 7 are exposed to the space below the body 2.

According to the above configuration, when the body 2 is attached to a ceiling material etc. as the structure 300, even if the body 2 remains attached to the structure 300, additional wiring is connected to the terminal part 7. Easy to connect.

Further, in the hub device 1, the plurality of terminal portions 7 are configured to allow the plurality of wirings W1, W2, and W3 to be inserted and removed.

According to the above configuration, it is easy to replace the wirings W1, W2, and W3 connected to the terminal portion 7 and to change the connection locations of the wirings W1, W2, and W3 in the hub device 1.

Further, the hub device 1 further includes a holding member 5. The holding member 5 is provided separately from the plurality of terminal parts 7. The holding member 5 holds at least one wiring among the plurality of wirings W1, W2, and W3 electrically connected to the plurality of terminal parts 7.

According to the above configuration, the wirings W1, W2, and W3 can be held without using a member separate from the hub device 1.

Further, in the hub device 1, the body 2 is separate from the attachment part 8 attached to the structure 300, and can be attached to the attachment part 8.

According to the above configuration, the mounting portion 8 and the body 2 can be designed separately.

Further, in the hub device 1, the body 2 is removably attached to the attachment portion 8.

With the above configuration, when either the mounting part 8 or the body 2 is replaced with a new mounting part 8 or body 2, the other can continue to be used.

Further, in the hub device 1, the plurality of terminal sections 7 include at least one of a terminal section for inputting both electric power and a signal, and a terminal section for outputting both electric power and a signal.

According to the above configuration, since both power and signals can be input or output through one terminal section 7, the number of terminal sections 7 can be reduced.

In addition, in the hub device 1, the multiple terminal units 7 include a terminal unit 72 for inputting power. The terminal unit 72 for inputting power accepts the input of power output from a power source (commercial power source PS1) and converted by a power converter 120.

According to the above configuration, power can be obtained from an external power source.

(Embodiment 2)
Hereinafter, a hub device 1A according to a second embodiment will be described using FIGS. 7 and 8. Components similar to those in Embodiment 1 are designated by the same reference numerals and description thereof will be omitted.

The hub device 1A of this embodiment includes a body 2A and an attachment portion 8A. The attachment portion 8A is incorporated into the body 2A. The attachment portion 8A has two wings 88 and two posts 881 (one in FIG. 7) that correspond one-to-one to the two wings 88.

Each wing portion 88 is rotatable about the corresponding support 881 as an axis. When the rotation angle of the two wing parts 88 is the first rotation angle, the two wing parts 88 are accommodated in the recess 34 provided in the insertion part 3A of the body 2A. In this state, the insertion portion 3A is inserted into the hole 330 (see FIG. 2) formed in the structure 300 (see FIG. 2). When the rotation angle of the two wings 88 is the second rotation angle, the two wings 88 protrude from the insertion portion 3A. In this state, the hub device 1A is placed on the structure 300 so that the two wings 88 are in contact with the first surface 301 (see FIG. 2) of the structure 300.

The body 2A includes an insertion section 3A and a lid section 6. The insertion section 3A includes an insertion main body 35 and two side walls 36. The insertion main body 35 has a three-dimensional shape obtained by cutting a cylinder diagonally with respect to the axial direction of the cylinder. The insertion body 35 therefore includes a surface 351 that is oblique to the axial direction. Surface 351 has a rectangular shape.

A plurality of terminal portions 7 (terminal portions P1 to P10, 71, and 72) are provided on the surface 351. In a state where the hub device 1A is attached to the structure 300, the axial direction of the insertion main body 35 is along the up-down direction. When the hub device 1A is attached to the structure 300, the surface 351 of the insertion main body 35 is oblique with respect to the vertical direction (vertical direction). A surface 111 of the cover 11 on which the opening 12 is formed is formed along a surface 351 of the insertion body 35. In other words, surface 111 is substantially parallel to surface 351. Therefore, when the hub device 1A is attached to the structure 300, the surface 111 of the cover 11 on which the opening 12 is formed is oblique with respect to the vertical direction.

The insert body 35 has an upper surface 352 at a first end in the axial direction and a lower surface at a second end. The lower surface of the insert body 35 faces the lid portion 6. The upper surface 352 of the insert body 35 is larger than the lower surface of the insert body 35. The area of the insert body 35 in a cross section perpendicular to the vertical direction decreases from top to bottom. The normal direction of the surface 351 of the insert body 35 is diagonally downward. The normal direction of the surface 111 of the cover 11 on which the opening 12 is formed is diagonally downward with respect to the vertical direction. When viewed from a direction along the normal line of the surface 351, the multiple terminal portions 7 are exposed through the opening 12 of the cover 11. In other words, the opening 12 of each cover 11 is formed so that the terminal portions 7 are exposed when viewed from diagonally below. The multiple terminal portions 7 provided on the surface 351 of the insert body 35 are exposed to the space below the body 2A.

The holding member 5A of the hub device 1A is coupled to the insertion portion 3A by screws. The two side walls 36 of the insertion portion 3A protrude from two sides of the surface 351 of the insertion body 35 that are oblique to the vertical direction. A plurality of wires W1, W2, and W3 electrically connected to a plurality of terminal portions 7 pass through a space 37 surrounded by an insertion main body 35 and two side walls 36, and are connected to the base end portions 51A and 2 of the holding member 5A. It passes through a space 53A surrounded by two arm parts 52A.

The stopper 89 is provided in the hub device 1 as an external component of the attachment portion 8A. The stopper 89 is coupled to the lower surface of the insertion body 35 by screwing. The lid portion 6 is attached to a stopper 89. The lid portion 6 is attached to the insertion portion 3A via a stopper 89.

Although not shown, multiple indicator lights 13 (see Figure 4) are provided on the underside of the insertion body 35.

Note that the normal direction of the surface 111 of the cover 11 on which the opening 12 is formed may be diagonally upward with respect to the vertical direction.

(Summary of Embodiment 2)
The following aspects are disclosed from the second embodiment described above.

The hub device 1A further includes at least one cover 11. The cover 11 corresponds to at least one terminal part 7 among the plurality of terminal parts 7 on a one-to-one basis. Cover 11 includes an opening 12 . The cover 11 covers at least one terminal portion 7 by the periphery of the opening 12 . At least one terminal portion 7 is configured such that at least one of the plurality of wirings W1, W2, and W3 can be inserted and connected through the opening 12. The opening 12 is formed in a surface 111 of at least one cover 11 that is oblique to the vertical direction, and exposes at least one terminal portion 7.

According to the above configuration, when the normal direction of the surface 111 that is diagonal to the vertical direction is diagonally upward and the terminal portion 7 is exposed to the space diagonally above the terminal portion 7, the terminal portion 7 is It is easier to electrically connect the wirings W1, W2, and W3 to the terminal portion 7 than when they are exposed only to the space directly above the terminal portion 7. If the normal direction of the surface 111 that is oblique to the vertical direction is diagonally downward and the terminal portion 7 is exposed to the space diagonally below the terminal portion 7, the terminal portion 7 is exposed to the space directly below the terminal portion 7. The wirings W1, W2, and W3 are less likely to come off from the terminal portion 7 than when they are exposed only to the terminal portion 7.

(Embodiment 3)
Hereinafter, a hub device 1B according to a third embodiment will be described using FIG. 9. Components similar to those in the second embodiment are designated by the same reference numerals and description thereof will be omitted.

The body 2B of the hub device 1B includes an insertion portion 3B and an extension portion 4B. The insertion section 3B includes an insertion main body 35B and two side walls 36B. The hub device 1B includes terminal parts P1 to P6 and terminal parts 71 and 72 as the plurality of terminal parts 7.

The insertion body 35B has a semi-cylindrical shape. In the insertion body 35B, a plurality of terminal portions 7 are provided on a surface 353 corresponding to the cross section of the cylinder. The surface 353 is along the up-down direction. A cover 11 covering each terminal portion 7 is open in one direction perpendicular to the up-down direction, and the terminal portion 7 is exposed when viewed from the one direction. A plurality of wirings W1, W2, and W3 can be inserted into and removed from the terminal portion 7 from the one direction. As a result, the possibility of water droplets, dust, etc. adhering to the terminal portion 7 can be reduced compared to a case where the terminal portion 7 is configured such that the plurality of wirings W1, W2, and W3 can be inserted and removed only from above, for example.

The two side walls 36B of the insertion portion 3B protrude from two sides of the surface 353 of the insertion body 35B along the axial direction of the insertion body 35B. In the two side walls 36B, the surfaces 361 facing each other are curved in a cylindrical shape. The extension portion 4B extends from the first end (upper end) of the insertion body 35B in the axial direction in a direction perpendicular to the axial direction.

The stopper 89B is integral with the insertion portion 3B. The lid portion 6B is attached to a stopper 89B.

When the hub device 1B is placed on the floor or the like with the stopper 89B in contact with the floor or the like, the surface 353 on which the plurality of terminal portions 7 are provided extends along the vertical direction. Further, the plurality of terminal portions 7 are concentrated on this surface 353. Therefore, it is easy to insert and remove the plurality of wirings W1, W2, and W3 from and to the plurality of terminal portions 7 while the hub device 1B is placed on the floor or the like.

(Embodiment 4)
The hub device 1C according to the fourth embodiment will be described below with reference to FIGS. 10A to 10C. Components similar to those in Embodiment 1 are designated by the same reference numerals and description thereof will be omitted. Further, as the structure of the attachment part for attaching the body 2C of the hub device 1C to the structure 300, for example, the structure shown in any of Embodiments 1 to 3 may be adopted, so the description of the attachment part will be as follows. Omitted.

The body 2C of the hub device 1C has an insertion portion 3C and an extension portion 4C. The insertion portion 3C is rectangular parallelepiped-shaped. When viewed from below, the four corners 38 of the insertion portion 3C are rounded. The extension portion 4C is rectangular parallelepiped-shaped. The extension portion 4C is connected to the insertion portion 3C.

The insertion portion 3C is disposed inside a hole 330 formed in the structure 300. At this time, the extension portion 4C extends in a direction along the first surface 301 with the insertion portion 3C as a base point when viewed from the side (above) facing the first surface 301 of the structure 300. More specifically, the extension portion 4C extends from the upper end of the insertion portion 3C in a direction perpendicular to the up-down direction. The extension portion 4C is disposed in the concealment portion 400 of the building. The extension portion 4C faces the first surface 301 of the structure 300 in the up-down direction.

The corner 39 at the upper end of the insertion section 3C opposite the side connected to the extension section 4C is rounded.

The insertion portion 3C has a cavity H1 inside. This cavity accommodates a board and the like mounted with a circuit for making the hub device 1C function as a switching hub device.

In the extension portion 4C, a plurality of (two in FIG. 10C) terminal portions P1 and P2 are provided on the distal end surface 41 on the side opposite to the insertion portion 3C side. A plurality of (four in FIG. 10B) terminal portions P3 to P6 and a terminal portion 71 are provided on the lower surface 32C of the insertion portion 3C.

The multiple terminal parts P3 to P6 each have a function different from the multiple terminal parts P1 and P2. Specifically, the multiple terminal parts P1 and P2 each are terminal parts (first terminal parts) for inputting power and inputting and outputting signals. The multiple terminal parts P3 to P6 each are terminal parts (second terminal parts) for outputting power and inputting and outputting signals. Furthermore, terminal part 71 is a terminal part for inputting and outputting signals.

The normal directions of the lower surface 32C of the insertion portion 3C provided with the plurality of terminal portions P1 and P2 and the distal end surface 41 of the extension portion 4C provided with the plurality of terminal portions P3 to P6 are different from each other. As a result, the direction in which one of the plurality of wirings W1 is inserted into each of the plurality of terminal parts P1 and P2 (first terminal part) is different from that of the plurality of terminal parts P3 to P6 (second terminal part). Each direction is different from the direction in which one of the plurality of wires W1 is inserted. More specifically, the wiring W1 is inserted into the plurality of terminal parts P1 and P2 from below upward, and into the plurality of terminal parts P3 to P6 in a direction perpendicular to the vertical direction.

When attaching the body 2C to the structure 300, first insert the extension part 4C into the hole 330, and then insert the body 2C in a plane perpendicular to the lower surface 32C of the insertion part 3C and the distal end surface 41 of the extension part 4C. Insert the insertion portion 3C into the hole 330 while rotating. Thereby, as shown in FIG. 10A, the extension part 4C is arranged in the concealing part 400, and the insertion part 3C is arranged inside the hole 330.

According to this embodiment, the extension portion 4C for providing the terminal portions P1 and P2 extends in the direction along the first surface 301 with the insertion portion 3C as a base point. Therefore, compared to the case where the extension part 4C extends in the normal direction (upward) of the first surface 301, the vertical dimension of the portion of the body 2C located above the first surface 301 is It can be suppressed. Therefore, the hub device 1C can be attached to the structure 300 even if the vertical height of the concealing part 400 (behind the ceiling) is relatively low.

Also in this embodiment, the body 2C may have a lid portion 6 (see FIG. 2).

(Summary of the fourth embodiment)
The above-described fourth embodiment discloses the following aspects.

The hub device 1 further includes at least one cover 11. The cover 11 corresponds to at least one terminal part 7 among the plurality of terminal parts 7 on a one-to-one basis. Cover 11 includes an opening 12 . The cover 11 covers at least one terminal portion 7 by the periphery of the opening 12 . At least one terminal portion 7 is configured such that at least one of the plurality of wirings W1, W2, and W3 can be inserted and connected through the opening 12. The plurality of terminal sections 7 include first terminal sections (terminal sections P1 and P2) and second terminal sections (terminal sections P3 to P6) that have a different function from the first terminal section. The direction in which one of the plurality of wirings W1, W2, and W3 is inserted in the first terminal section is the same as the direction in which one of the plurality of wirings W1, W2, and W3 is inserted in the second terminal section. different.

According to the above configuration, it is easy to distinguish between the first terminal part and the second terminal part.

Further, in the hub device 1, the first terminal portions (terminal portions P1, P2) are terminal portions for inputting at least one of power and signals. The second terminal portion (terminal portions P3 to P6) is a terminal portion for outputting at least one of power and signal.

According to the above configuration, it is easy to distinguish between the input terminal section and the output terminal section.

(Embodiment 5)
The hub device 1D according to the fifth embodiment will be described below with reference to FIGS. 11 to 15. Components similar to those in Embodiment 1 are designated by the same reference numerals and description thereof will be omitted.

As shown in FIGS. 11 to 13, the hub device 1D includes a body 2D, a plurality (six) of terminal portions 7, a mounting portion 8D, and a lid portion 6D. The body 2D includes an insertion portion 3D, an extension portion 4D, and a holding member 5D. A plurality of wirings W1, W2, and W3 are electrically connected to the plurality of terminal portions 7. Note that FIG. 13 shows only a part of each of the two wirings W1, and illustrations of the plurality of wirings W1, W2, and W3 are omitted in FIGS. 11, 12, 14, and 15.

Similar to Embodiment 1, the body 2D and the mounting portion 8D are separate bodies. After the attachment portion 8D is attached to the structure 300, the body 2D is attached to the attachment portion 8D. That is, the body 2D is attached to the structure 300 via the attachment portion 8D.

The insertion portion 3D has a semi-cylindrical shape. In a state where the body 2D is attached to the structure 300 via the attachment portion 8D, the extension portion 4D is connected above the vertical center of the insertion portion 3D. The extension portion 4D extends in a direction along the first surface 301 with the insertion portion 3D as a base point when viewed from the side facing the first surface 301. More specifically, the extension portion 4D protrudes from near the upper end of the insertion portion 3D along a direction perpendicular to the up-down direction. The extension portion 4D has the shape of a semi-cylindrical column with a portion cut out. When viewed from above, the structure of the body 2D including the insertion portion 3D and the extension portion 4D has a circular shape with a notch. By forming the body 2D into such a shape, the size of the body 2D viewed from above can be increased compared to the body 2 of the first embodiment. Therefore, it is possible to easily secure a space for arranging the substrate and the like in the space SP2 inside the body 2D. A holding member 5D is arranged in a space corresponding to the notch portion of the extension portion 4D.

The holding member 5D has an arm portion 52D having a configuration corresponding to the arm portion 52 of the first embodiment. The holding member 5D of the fifth embodiment consists of only an arm portion 52D. The arm portion 52D has an arcuate shape when viewed from above and below. Arm portion 52D protrudes from insertion portion 3D. A gap 54 is provided between the tip of the arm portion 52D and the extension portion 4D.

A number of wires W1, W2, and W3 are passed through space 53 surrounded by arm portion 52D, insertion portion 3D, and extension portion 4D. The number of wires W1, W2, and W3 are arranged in space 53, for example, from outside space 53 through gap 54. The number of wires W1, W2, and W3 are arranged in the vertical direction in space 53. This restricts movement of the number of wires W1, W2, and W3 in a direction perpendicular to the vertical direction.

The insertion section 3D has an insertion body 35, a storage section 37D, and multiple (three, but only two are shown in FIG. 13) protrusions 374. The insertion body 35 is semi-cylindrical. The storage section 37D is semi-cylindrical with an open top. When viewed from the top-bottom direction, the outer shape of the storage section 37D follows the outer shape of the insertion body 35. The storage section 37D is attached to the insertion body 35. The storage section 37D can be removed from the insertion body 35. The storage section 37D covers the insertion body 35 from below.

The plurality of protrusions 374 protrude from the housing portion 37D. The protrusion direction of the plurality of protrusions 374 is along a direction perpendicular to the up-down direction. When viewed from the top and bottom, the plurality of protrusions 374 are arranged at approximately equal intervals in an arcuate region of the outer peripheral surface of the housing portion 37D. More specifically, the plurality of protrusions 374 are arranged at intervals of approximately 120 degrees in an arcuate region of the outer peripheral surface of the housing portion 37D.

An opening 3750 is formed in the lower surface 375 of the insertion portion 3D (the lower surface of the accommodating portion 37D). A plurality of (six in FIG. 13) indicator lights 13 are exposed through the opening 3750.

The lighting state of one of the six indicator lights 13 (hereinafter also referred to as indicator light 13D) changes depending on the specific state of the hub device 1D. Thereby, the indicator light 13D displays a specific state. In the fifth embodiment, the specific state is a state of whether or not the hub device 1D is performing short-range wireless communication compliant with standards such as Bluetooth (registered trademark). For example, when the hub device 1D is performing short-range wireless communication, the indicator light 13D is lit, and when the hub device 1D is not performing short-range wireless communication, the indicator light 13D is turned off.

The remaining five indicator lights among the six indicator lights 13 correspond one-to-one with five terminal parts 7 among the six terminal parts 7. The lighting state of each indicator light 13 changes depending on the communication state at the corresponding terminal section among the five terminal sections 7.

The plurality of terminal portions 7 are provided on a surface 353 of the insertion main body 35 along the vertical direction. A cover 11 covering each terminal portion 7 is open in one direction perpendicular to the up-down direction, and the terminal portion 7 is exposed when viewed from the one direction. A plurality of wirings W1, W2, and W3 can be inserted into and removed from the terminal portion 7 from the one direction. As a result, the possibility of water droplets, dust, etc. adhering to the terminal portion 7 can be reduced compared to a case where the terminal portion 7 is configured such that the plurality of wirings W1, W2, and W3 can be inserted and removed only from above, for example.

The body 2D further includes a cap 14. The cap 14 is formed in a cylindrical shape with a bottom. As shown in FIG. 14, a plurality of through holes 141 are formed in the bottom of the cap 14. The structure of the bottom of the cap 14 is a honeycomb structure in which a plurality of through holes 141 are formed.

The cap 14 covers the structure consisting of the insertion portion 3D and the extension portion 4D from above. The insertion portion 3D and the extension portion 4D each have an internal space, and the internal space of the insertion portion 3D and the internal space of the extension portion 4D are connected to form a single space SP2 (the internal space of the body 2D; see FIG. 15). The cap 14 covers the internal spaces of the insertion portion 3D and the extension portion 4D. Furthermore, in the hub device 1D, heat generated in the internal spaces of the insertion portion 3D and the extension portion 4D can be exhausted through the multiple through holes 141 of the cap 14.

When viewed from above, the outer shape of the cap 14 substantially matches the outer shape of the structure consisting of the insertion portion 3D and the extension portion 4D. That is, when viewed from above, the shape of the cap 14 is circular with a notch. By forming the cap 14 in such a shape, the external size of the cap 14 when viewed from above can be ensured. Thereby, heat generated in the space inside the insertion portion 3D and the extension portion 4D can be efficiently exhausted.

As shown in FIG. 15, the hub device 1D further includes a plurality of (six in FIG. 15) mounting boards 151 to 156 and a plurality (two in FIG. 15) of heat sinks 17 and 18. The plurality of mounting boards 151 to 156 and the plurality of heat sinks 17 and 18 are arranged in a space SP2 inside the body 2D, that is, a space inside the insertion part 3D and the extension part 4D. At least a portion of the plurality of mounting boards 151 to 155 and the plurality of heat sinks 17 and 18 are accommodated in the insertion main body 35. The mounting board 156 is housed in the housing section 37D.

Each of the plurality of mounting boards 151 to 156 includes a board and at least one electronic component 16 mounted on the board. More specifically, the mounting board 151 includes a board 1510. The mounting board 152 includes a board 1520, the mounting board 153 includes a board 1530, the mounting board 154 includes a board 1540, the mounting board 155 includes a board 1550, and the mounting board 156 includes a board 1560.

The mounting board 151 is a power supply board. That is, a power supply circuit is formed on the mounting board 151. The power supply circuit converts power output from a power source such as a commercial power supply PS1 (see FIG. 1) and converted by the power converter 120 (see FIG. 1) into power of a desired voltage. supply to the circuit. The power supply circuit includes, for example, a step-down chopper, and the step-down chopper includes a plurality of switching elements as electronic components 16. The switching element is made of, for example, a transistor.

The mounting board 151 is arranged in the upper part of the space inside the insertion part 3D and the extension part 4D. More specifically, at least a portion of the mounting board 151 is arranged in a space inside the extension part 4D, and the extension part 4D protrudes from near the upper end of the insertion part 3D. The thickness direction of the board 1510 of the mounting board 151 is along the up-down direction.

The heat sink 17 is made of aluminum, for example. The heat sink 17 has a base 171 and a plurality of fins 172. The base 171 is formed into a plate shape. The thickness direction of the base 171 is along the up-down direction. The shape of the base 171 when viewed from the vertical direction is a shape along the inner edges of the insertion portion 3D and the extension portion 4D. The base 171 covers the space inside the insertion section 3D and the extension section 4D from above. The plurality of fins 172 protrude from the upper surface of the base 171.

The heat sink 17 is placed on the mounting board 151. The base 171 of the heat sink 17 is in contact with at least some of the electronic components 16 such as switching elements arranged on the upper surface of the substrate 1510 of the mounting board 151. Furthermore, the heat sink 17 has a plurality of protrusions 173 that are in contact with at least some of the electronic components 16 . The plurality of protrusions 173 protrude from the lower surface of the base 171.

A cap 14 is placed on top of the heat sink 17. The heat sink 17 radiates heat generated in the space inside the insertion section 3D and the extension section 4D to the outside of the hub device 1D through the cap 14. The heat sink 17 radiates heat received from the electronic component 16 such as a transistor mounted on the substrate 1510 to the outside of the hub device 1D through the cap 14, for example.

Substrates 1520, 1530, 1540, 1550 are arranged below substrate 1510. Further, a substrate 1550 is arranged below the substrate 1520, and a substrate 1530 and a substrate 1540 are arranged between the substrate 1520 and the substrate 1550. The thickness direction of each of the substrates 1520 and 1550 is along the up-down direction. The thickness direction of the substrates 1530, 1540 is along one direction perpendicular to the up-down direction, and the substrates 1530, 1540 are lined up in the one direction.

Components related to communication between the hub device 1D and a plurality of devices 100 (see FIG. 1) external to the hub device 1D are mounted on the boards 1520, 1530, 1540, and 1550. On the board 1520, one terminal section 7 (see FIG. 13), a cover 11 that covers the terminal section 7, and a plurality of electronic components 16 are mounted. On the board 1550, five terminal portions 7 (see FIG. 13), five covers 11 (only one is shown in FIG. 15) covering the five terminal portions 7, and a plurality of electronic components 16 are mounted. ing. A plurality of electronic components 16 are mounted on each of the substrates 1530 and 1540.

The heat sink 18 is formed, for example, from aluminum. The heat sink 18 has a base 181 and a number of fins 182. The base 181 is formed in a plate shape. The thickness direction of the base 181 is along one direction perpendicular to the up-down direction. The multiple fins 182 protrude from the base 181 in that one direction.

The base 181 is in contact with at least some of the electronic components 16 among the plurality of electronic components 16 mounted on the substrate 1540. Further, the heat sink 18 has a plurality of protrusions 183 that are in contact with at least some of the electronic components 16 . A plurality of protrusions 183 protrude from the base 181. Further, the base 181 is mechanically and thermally coupled to the base 171 of the heat sink 17.

The heat sink 18 conducts heat generated in the space inside the insertion portion 3D and the extension portion 4D to the heat sink 17. The heat sink 18 conducts heat received from, for example, the electronic component 16 mounted on the substrate 1540 to the heat sink 17.

Substrate 1560 is disposed below substrate 1550. The thickness direction of the substrate 1560 is along the up-down direction. The wiring formed on the substrate 1560 is electrically connected to the plurality of indicator lights 13.

As described above, the plurality of indicator lights 13 are exposed through the opening 3750 formed in the lower surface 375 of the housing portion 37D. More specifically, in a state where the lid part 6D is not attached to the insertion part 3D, the plurality of indicator lights 13 are exposed to the indoor space under the structure 300 (ceiling material). On the other hand, when the lid part 6D is attached to the insertion part 3D, one indicator light 13D is exposed to the indoor space under the structure 300 (ceiling material) through the insertion hole 62 of the lid part 6D, The remaining five indicator lights 13 are covered by the lid part 6D, so they are not exposed to the indoor space.

Further, as described above, the substrate 1510 is arranged in the upper part of the space inside the insertion section 3D and the extension section 4D. The substrate 1510 is arranged at the top among the plurality of substrates 1510, 1520, 1530, 1540, 1550, and 1560. Therefore, heat generated in the mounting board 151 including the board 1510 is easily exhausted onto the body 2D. Furthermore, since the heat sink 17 is provided adjacent to the mounting board 151, the heat generated in the mounting board 151 can be efficiently exhausted compared to a case where there is no heat sink 17. Since the power supply circuit formed on the mounting board 151 includes a transistor that serves as a heat generation source, the amount of heat generated in the mounting board 151 tends to be larger than the amount of heat generated in each of the mounting boards 152 to 155. Therefore, by efficiently discharging the heat generated in the mounting board 151 as described above, it is possible to reduce the temperature rise in the space SP2 inside the body 2D.

As shown in FIG. 11, the lid portion 6D is disc-shaped. An insertion hole 62 is formed in the center of the lid portion 6D. The lid portion 6D has four protrusions 611D for attaching the lid portion 6D to the attachment portion 8D. The lid part 6D is attached to the attachment part 8D by hooking the four protrusions 611D to the attachment part 8D.

Next, the structure of the mounting portion 8D will be explained with reference to FIGS. 11 and 12.

The attachment portion 8D includes a cylindrical portion 81D, a plurality (three) of wing portions 88, a plurality (three) of struts 881, and a stopper 89.

The tubular portion 81D is formed in a cylindrical shape. The axial direction of the tubular portion 81D is along the up-down direction. The tubular portion 81D has four mounting holes 812 into which the four protrusions 611D of the lid portion 6D are inserted.

The stopper 89 is formed in a circular ring shape. The stopper 89 is connected to the cylindrical portion 81D. The stopper 89 protrudes from the lower end of the cylindrical portion 81D toward the radially outer side of the cylindrical portion 81D.

The plurality of struts 881 are held by the cylindrical portion 81D. The configurations of the plurality of wing parts 88 and the plurality of support columns 881 are the same as those in Embodiment 1, so a description thereof will be omitted.

The mounting portion 8D includes a plurality (three) of spring portions 82D (see FIGS. 11 and 14), a plurality of (three) protrusions 83D (see FIG. 11; only one is shown in FIG. 11), It further has. The three spring parts 82D are fixed to the cylindrical part 81D. The three spring parts 82D are arranged near the inner peripheral surface of the cylindrical part 81D. The three spring parts 82D are arranged at approximately equal intervals in the circumferential direction of the cylindrical part 81D. The three spring parts 82D are leaf springs. The three spring parts 82D correspond one-to-one with the three protrusions 374 of the insertion part 3D. The three protruding base portions 83D protrude from the inner circumferential surface of the cylindrical portion 81D. The three protruding base portions 83D correspond one-to-one with the three spring portions 82D. Each of the three protruding base portions 83D is adjacent to the corresponding spring portion 82D. Each of the three spring parts 82D holds (sandwiches) the corresponding protrusion part 374 between it and the corresponding protrusion part 83D.

Next, an example of a procedure for attaching the hub device 1D to the structure 300 will be described with reference to FIG. 11.

First, as in the first embodiment, the mounting portion 8D is attached to the structure 300. That is, the mounting portion 8D is inserted into the hole 330 formed in the structure 300. When the mounting portion 8D is inserted into the hole 330, the rotation angle of the two wing portions 88 is set to a first rotation angle by the operation of the worker. After the mounting portion 8D is inserted into the hole 330, the two wing portions 88 are rotated approximately 90 degrees by the operation of the worker, and the rotation angle of the two wing portions 88 is set to a second rotation angle. When the rotation angle of the two wing portions 88 becomes the second rotation angle, the two wing portions 88 extend outside the hole 330 and contact the first surface 301 of the structure 300. That is, the mounting portion 8D is placed on the structure 300 so that the two wing portions 88 contact the first surface 301 of the structure 300.

Next, by rotating the support 881 and moving the wings 88 in the axial direction of the support 881, the structure 300 is sandwiched between the two wings 88 and the stopper 89 (see FIG. 15). Through the above steps, the attachment portion 8D is attached to the structure 300.

On the other hand, a plurality of wirings W1, W2, and W3 are electrically connected to a plurality of terminal portions 7 provided on the body 2D. Furthermore, the plurality of wirings W1, W2, and W3 are held by the holding member 5D. A plurality of wirings W1, W2, W3 are electrically connected to a plurality of terminal parts 7, a plurality of wirings W1, W2, W3 are held by a holding member 5D, and a mounting part 8D is connected to a first surface 301 of a structure 300. After being placed on the body 2D, the body 2D is attached to the attachment portion 8D.

More specifically, first, the body 2D is inserted into the hole 330 formed in the structure 300. Next, body 2D is rotated. As a result, each of the three protrusions 374 is placed on the protruding base part 83D and moved to a position where it is held (sandwiched) between the corresponding spring part 82D and the protruding base part 83D. Thereby, the body 2D is attached to the attachment portion 8D. That is, the body 2D is attached to the structure 300 via the attachment portion 8D. Further, the spring force of the spring portion 82D prevents the body 2D from rotating relative to the attachment portion 8D so that the protrusion portion 374 separates from the protrusion portion 83D.

Thereafter, the four protrusions 611D of the lid part 6D are inserted into the four attachment holes 812 (see FIG. 12) formed in the cylindrical part 81D, so that the four protrusions 611D are hooked on the cylindrical part 81D. Thereby, the lid portion 6D is attached to the cylindrical portion 81D.

Through the above steps, the hub device 1D is attached to the structure 300. Furthermore, the hub device 1D can be removed from the structure 300 by performing an operation opposite to that for attaching the hub device 1D to the structure 300.

Note that when the hub device 1D is attached to the structure 300 and then the lid portion 6D is removed from the cylindrical portion 81D, the plurality of indicator lights 13 are exposed in the space below the body 2D. Therefore, even when the body 2D is attached to the structure 300 via the attachment portion 8D, the communication status of the hub device 1D can be confirmed by checking the lighting status of each indicator light 13. Moreover, even when the lid part 6D is attached to the cylindrical part 81D, by checking the lighting state of one indicator light 13D exposed through the insertion hole 62 of the lid part 6D, communication corresponding to the indicator light 13D can be performed. You can check the status. In the fifth embodiment, as described above, the indicator light 13D indicates whether the hub device 1D is performing short-range wireless communication.

The hub device 1D may be used by attaching it to the structure 300 with the cover portion 6D removed from the cylindrical portion 81D.

(Modification of Embodiment 5)
Modifications of the fifth embodiment are listed below. The following modified examples may be realized in combination as appropriate.

The hub device 1D may have a drainage structure for draining water that enters through the plurality of through holes 141 of the cap 14. For example, at least one of an inclined surface and a drain groove may be provided inside the body 2D, and water may be drained out of the body 2D along at least one of the inclined surface and the drain groove. Water may be drained, for example, from a through hole provided on the side or bottom of the hub device 1D.

At least one of the plurality of wirings W1, W2, and W3 may be a flat cable. A gap may be provided between the lid portion 6D and the mounting portion 8D or the body 2D to allow the flat cable to pass through. Alternatively, a through hole for passing the flat cable may be formed in the lid portion 6D, the attachment portion 8D, or the body 2D. That is, the hub device 1D may include an insertion portion such as a gap or a through hole for passing the flat cable. Thereby, the flat cable can be pulled out to the outside (indoor) of the hub device 1D with the lid portion 6D attached to the cylindrical portion 81D. The thickness of the flat cable is, for example, about 1 mm. The width of the flat cable is, for example, about 10 mm. The above gaps and through holes are formed to have a size equal to the size of the flat cable, for example. Here, "equal" is not limited to a case where they exactly match, but includes a case where they differ within an allowable error range. The allowable error is, for example, an error of 5% or less or an error of 10% or less. Note that the above gaps and through holes may be larger than the dimensions of the flat cable.

The hub device 1D may be configured to be able to draw out at least one of the plurality of wirings W1, W2, and W3 below the hub device 1D. For example, by providing the above-mentioned gap or through hole for passing the flat cable as the wiring W1, W2, or W3, the flat cable can be drawn out under the hub device 1D. Further, the wiring W1, W2, or W3 drawn out under the hub device 1D is not limited to a flat cable, and may be any wiring. The device 100 installed in the room where the hub device 1D is attached to the ceiling material (see FIG. 1) is connected to the hub device 1D via the wiring W1, W2, or W3 drawn down from the hub device 1D. Power transmission and communication are possible. For example, the hub device 1D can supply power to the device 100 installed on the ceiling.

A fan may be arranged in the space SP2 inside the body 2D. By driving the fan, it is possible to improve the heat exhaust efficiency of the hub device 1D.

The arrangement of the multiple terminals 7 and the multiple indicator lights 13 is not limited to the arrangement shown in the fifth embodiment. For example, at least one of the multiple terminals 7 may be arranged on the lower surface 375 of the insertion section 3D (accommodating section 37D). At least one of the multiple indicator lights 13 may be arranged on the surface 353 (front surface) along the vertical direction of the insertion section 3D (insertion body 35). That is, at least a part of the multiple terminals 7 and at least a part of the multiple indicator lights 13 may be arranged so as to be exposed when viewed from below, or so as to be exposed when viewed from a direction intersecting the vertical direction (for example, a direction perpendicular to the vertical direction). The hub device 1D may have both the terminals 7 exposed when viewed from below and the terminals 7 exposed when viewed from a direction intersecting the vertical direction. The hub device 1D may also have both the indicator lights 13 exposed when viewed from below and the indicator lights 13 exposed when viewed from a direction intersecting the vertical direction.

(Summary of Embodiment 5 and modifications of Embodiment 5)
The following aspects are disclosed from the fifth embodiment and the modification of the fifth embodiment described above.

The hub device 1D further includes a mounting board 151 (and 152 to 156). The mounting board 151 (and 152 to 156) includes the electronic component 16 and a board 1510 (or 1520, 1530, 1540, 1550) on which the electronic component 16 is mounted. The body 2D has a space SP2 inside. The mounting board 151 (and 152 to 156) is arranged in a space SP2 inside the body 2D.

According to the above configuration, the space SP2 inside the body 2D can be effectively used.

Furthermore, in the hub device 1D, the body 2D further includes an extension portion 4D. The extension part 4D is connected above the vertical center of the insertion part 3D. The extension portion 4D extends in a direction along the first surface 301 with the insertion portion 3D as a base point when viewed from the side facing the first surface 301. The extension part 4D has a space inside. At least a portion of the mounting board 151 is arranged in a space inside the extension part 4D.

The above configuration makes it easy to ensure space for mounting board 151. In addition, at least a portion of mounting board 151 is disposed in the space inside upper extension 4D of body 2D. Therefore, compared to when the entire mounting board 151 is disposed below space SP2 inside body 2D, it is possible to reduce the temperature rise in space SP2 inside body 2D.

Further, in the hub device 1D, the electronic component 16 is a switching element.

According to the above configuration, the switching element may generate heat during switching, but since at least a part of the mounting board 151 is disposed in the space inside the extension part 4D on the upper side of the body 2D, the switching element may generate heat when switching. It is possible to reduce the temperature rise in the internal space SP2.

Further, the hub device 1D further includes a heat sink 17 (and 18). The heat sink 17 (and 18) is in contact with the mounting board 151 (and 154).

According to the above configuration, it is possible to reduce the temperature rise in the space SP2 inside the body 2D.

(Modified example)
Modifications 1 to 7 below may be applied to any of Embodiments 1 to 5. Modifications 1 to 7 below are modifications in which a configuration having a specific function (hereinafter collectively referred to as a "functional unit") is added to the hub device 1. According to Modifications 1 to 7, compared to the case where the functional unit is provided in a device provided separately from the hub device 1 (hereinafter referred to as “functional device”), the installation space for the functional unit can be secured. It becomes easier. Further, in one embodiment, the functional unit is connected to a network or a device 100 external to the hub device 1. If a functional device provided separately from the hub device 1 is equipped with a functional section, the functional device can be connected to the hub device 1 by electrically connecting the functional device and the hub device 1 through the wiring W1 or the like. It is conceivable to connect to a network or a device 100 external to the hub device 1. However, in Modifications 1 to 7, since the functional unit is provided in the hub device 1, the effort required for connection can be reduced.

In the fifth embodiment, the functional section may be housed in the housing section 37D of the hub device 1D. More specifically, the mounting board 156 housed in the housing section 37D may have a functional section. Then, the user may select an accommodating section 37D from among the plurality of accommodating sections 37D that accommodate functional sections each having a different function according to the purpose of the hub device 1D, and attach the accommodating section 37D to the insertion main body 35.

(Modification 1)
The hub device 1 may include a communication section having a wireless LAN function. The communication unit functions, for example, as a wireless access point. The communication unit performs wired or wireless communication with a router connected to the network. That is, the router is one of the multiple devices 100 that communicate with the hub device 1. When the communication unit performs wired communication with the router, the communication unit and the router are connected by communication wiring (for example, wiring W1) electrically connected to the terminal unit 7. The router is placed, for example, in a space behind the ceiling.

Further, the communication unit performs wireless communication with one or more devices 100 such as a network camera, a personal computer, and a mobile terminal. The communication unit connects the router and one or more devices 100 to each other. Thereby, the communication unit connects one or more devices 100 to the network via the router.

Further, communication between the hub device 1 and one or more devices 100 not compatible with wireless LAN is performed by wired communication using communication wiring (for example, wiring W1). Thereby, the communication unit connects one or more devices 100 to the network via the router.

In the first modification, the hub device 1 includes a communication section having a wireless LAN function, and the hub device 1 is attached to a structure 300 such as a ceiling material. As a result, the hub device 1 is less likely to get in the way at the location where the hub device 1 is installed, compared to a communication unit placed on a desk or the like. In other words, a network environment can be constructed while reducing the possibility that the space at the location where the hub device 1 is installed is compressed.

When the hub device 1 has a function as a wireless access point as in the present modification 1, the hub device 1 may include only one terminal portion 7. One terminal portion 7 can be electrically connected to communication wiring (for example, wiring W1). The terminal section 7 is electrically connected to a router as the device 100 via communication wiring. Communication between the hub device 1 and devices 100 other than the router is performed by wireless communication by a communication unit.

Note that the hub device 1 may further include a router. The router of the hub device 1 is connected to a line termination device such as a modem via communication wiring. The line termination device is connected to the network.

Further, the hub device 1 may further include a line termination device. The line termination device of the hub device 1 is connected to the network via communication wiring.

Further, the hub device 1 may include a SIM card slot into which a SIM card is inserted.

(Variation 2)
The hub device 1 may include a controller that controls the operation of the multiple devices 100 electrically connected to the hub device 1 via multiple wires W1, W2, and W3. Furthermore, the hub device 1 may include one or more sensors that detect the surrounding conditions. The controller may then control the operation of the multiple devices 100 based on the detection results of the one or more sensors.

Note that at least one of the sensor and the controller may not be included in the hub device 1, and at least one of the sensor and the controller may be configured outside the hub device 1. Communication between the hub device 1, the sensor, and the controller may be wired communication via communication wiring (for example, wiring W1) or wireless communication.

An example of the sensor is a position sensor using LPS (Local Positioning System). For example, the controller detects the presence or absence of a person and the position of the person using LPS, and depending on the detection results, controls the lighting equipment, air conditioning equipment (air conditioner, ventilation system, humidifier, dehumidifier, etc.), audio equipment, etc. Controls the device 100.

Another example of the sensor is a human sensor using a heat ray sensor, an ultrasonic sensor, a photoelectric sensor, an infrared sensor, or the like. Alternatively, the sensor is, for example, an image sensor that analyzes an image taken with a camera and recognizes a person. The controller detects the presence or absence of a person using, for example, a human sensor or an image sensor, and controls equipment 100 such as lighting equipment, air conditioning equipment, and audio equipment according to the detection result.

Another example of the sensor is an environmental sensor such as a temperature sensor, humidity sensor, or brightness sensor. The controller controls equipment 100 such as lighting equipment and air conditioning equipment according to the detection results of the environmental sensors, for example.

Another example of the sensor is an air quality sensor. The air quality sensor detects the concentration of pollutants or carbon dioxide concentration in the air. For example, when the carbon dioxide concentration detected by the air quality sensor is higher than a threshold value, the controller controls the air conditioner as the device 100 to perform ventilation.

Another example of the sensor is a biosensor such as a heartbeat sensor. A heartbeat sensor, for example, transmits radio waves and receives reflected waves generated when the transmitted radio waves are reflected by a person. Then, the heart rate sensor detects the person's heart rate based on the received reflected waves. The detection results of the biosensor are stored in the memory of the hub device 1, for example.

Another example of a sensor is a heat sensor. The heat sensor detects a fire. When the heat sensor detects a fire, the hub device 1 communicates with disaster prevention equipment to sound an alarm or activate sprinklers.

Further, the hub device 1 may include an air conditioning device or the like. For example, the hub device 1 may include a ventilation device, a water cooling device, an air cleaner, and the like.

Further, the hub device 1 may include a device that generates a scent. Thereby, for example, it is possible to provide a scent that is pleasant to people in the room where the hub device 1 is installed. This device generates a scent depending on the detection result of a human sensor, for example.

Further, the hub device 1 may include a device having an insect repellent effect. For example, the hub device 1 may include a device that uses fragrance to repel insects or a device that uses ultrasonic waves to repel insects. This device switches whether or not it has an insect repellent effect, depending on the detection results of an environmental sensor such as a temperature sensor and a humidity sensor, and a human sensor.

Further, the hub device 1 may communicate with a digital signage system. A digital signage system is installed next to an escalator in a facility, for example. On the other hand, the hub device 1 is installed, for example, on the ceiling of an escalator landing. The detection results of the sensor are input to the digital signage system via the hub device 1. A digital signage system includes, for example, a display whose display changes depending on the detection result of a sensor.

(Variation 3)
The hub device 1 may include a lighting unit including a light source such as an LED. The lighting unit is disposed, for example, on the underside of the body 2 of the hub device 1. The lighting unit is used, for example, as an emergency light or an emergency light. The lighting unit changes its lighting state, for example, upon receiving a command from a controller that communicates with the hub device 1. When the commercial power source PS1 fails, the lighting unit receives power from an emergency power source (for example, a UPS (Uninterruptible Power Supply)) and lights up in response to a command from the controller. The communication between the hub device 1 and the controller may be wired communication via a communication wiring (for example, a wiring W1) or wireless communication.

The lighting unit of the hub device 1 may be controlled so that the lighting state changes in conjunction with a lighting fixture external to the hub device 1. For example, the lighting unit and the lighting fixture may be linked together by a command from the controller, or the lighting unit and the lighting fixture may be linked by communication between the lighting unit and the lighting fixture. By interlocking the lighting unit and the lighting fixture, for example, the timing of lighting and extinguishing can be aligned, or the timing of lighting and extinguishing can be shifted at a constant timing.

Further, the lighting section may be controlled so that the lighting state changes according to the detection result of the sensor (human sensor, etc.) of Modification 2.

Further, the lighting unit may be controlled so that the lighting state changes based on the output of a room entry/exit management system that manages entry and exit of people into the room in which the hub device 1 is installed. A room entry/exit management system manages the entry and exit of a person by, for example, reading information from an IC tag carried by the person when the person enters and leaves the room. As an example, when a person enters the room, the lighting section lights up, and when the person leaves the room, the lighting section turns off.

The hub device 1 may include a battery. The hub device 1 may use a battery as an emergency power source. Further, the lighting section may be configured so that the lighting state changes according to a user's operation. Further, the lighting section is not limited to an emergency light or a guide light, but may be used as an indoor light that can be used even when there is no power outage, for example.

The hub device 1 may include a terminal electrically connected to a battery. Even if the hub device 1 is not equipped with a battery in advance, the hub device 1 can receive power from the battery via the terminal. Further, the hub device 1 may charge the battery via the terminal.

The hub device 1 may accept power supply from a battery when the amount of power supplied from the hub device 1 to one or more devices 100 by PoE exceeds a predetermined limit value. In other cases, the hub device 1 does not need to receive power from the battery.

(Modification 4)
The hub device 1 may include a camera. The camera photographs a space (indoor space, etc.) in which the hub device 1 is installed, and generates image data (still image data or video data). Image data generated by the camera is output to a device external to the hub device 1 via a network, for example.

The hub device 1 may relay communication between a camera installed outside the hub device 1 and a device to which image data is output. The communication between the hub device 1 and the camera may be wired communication via a communication wiring (e.g., wiring W1) or wireless communication.

Further, the hub device 1 may store image data generated by the camera in the memory of the hub device 1. Alternatively, the hub device 1 may store image data generated by a camera in a memory card such as an SD card. In order to store image data on the SD card, the hub device 1 may include an SD card slot into which the SD card is inserted.

The camera may also be used as a device for taking images for video calls.

(Modification 5)
The hub device 1 may include at least one of a speaker and a microphone. A speaker and a microphone are used, for example, as audio input/output equipment for a videophone. The speaker and microphone output and accept input of sound (including voice) in response to commands from a controller communicating with the hub device 1, for example. Communication between the hub device 1 and the controller may be wired communication via communication wiring (for example, wiring W1) or wireless communication.

A directional speaker may be used as the speaker. For example, the directional speaker outputs sound so that the sound from the speaker can be easily heard in the space directly below the hub device 1 compared to the surrounding space.

Further, as the speaker, a muffling speaker having a noise canceling function may be used. The muffling speaker suppresses the propagation of sound between the space directly below the hub device 1 and the surrounding space, for example.

(Modification 6)
The hub device 1 may have a projector function. For example, the hub device 1 may include a projector that projects an image onto a screen. The projector projects an image in response to a user's operation or the like.

(Modification 7)
The hub device 1 may include an input reception unit that receives input of a contact signal from a contact device having contacts that open and close. A contact signal is output from the contact device in response to opening and closing of the contact. The hub device 1 may perform operations according to the contact signal. Further, the hub device 1 may transmit a contact signal to other devices 100.

Each of the embodiments described above, including modifications, may be realized by appropriately combining them.

1, 1A, 1B, 1C, 1D Hub device 2, 2A, 2B, 2C, 2D Body 3, 3A, 3B, 3C, 3D Insertion section 4, 4B, 4C, 4D Extension section 5, 5A, 5D Holding member 89 Stopper 7 Terminal parts 8, 8A, 8D Mounting part 11 Cover 111 Surface 12 Opening part 120 Power converters 151 to 156 Mounting board 1510, 1520, 1530, 1540, 1550, 1560 Board 16 Electronic components 17, 18 Heat sink 300 Structure 301 No. 1 side 302 2nd side 330 Hole 400 Concealing part PS1 Commercial power supply (power supply)
SP2 Space W1, W2, W3 Wiring

Claims (9)

body and
a plurality of terminal portions provided on the body and capable of electrically connecting a plurality of wirings including at least a plurality of communication wirings for communication;
an attachment part for attaching the body to a structure forming part of a building;
a holding member provided separately from the plurality of terminal parts and holding at least one wiring among the plurality of wirings electrically connected to the plurality of terminal parts ;
the holding member protrudes from the body;
hub device. The structure includes a first surface exposed to a concealed part of the building, and a second surface opposite to the first surface,
The body has an insertion portion that is inserted into a hole that penetrates from the first surface to the second surface of the structure in a predetermined penetrating direction,
The holding member protrudes from the body in a direction intersecting the penetrating direction.
The hub device according to claim 1. When viewed from the penetration direction, an outer edge of the body has a shape that follows a predetermined circle,
The holding member has a shape that fits within the predetermined circle.
The hub device of claim 2 . The body further includes an extension part connected to the insertion part and extending in a direction along the first surface from the insertion part as a base point when viewed from the side facing the first surface,
the retaining member is coupled to the extension;
The hub device according to claim 2 or 3. The body further includes an extension part connected to the insertion part and extending in a direction along the first surface from the insertion part as a base point when viewed from the side facing the first surface,
The holding member has an arm portion protruding from the insertion portion,
The tip of the arm portion faces the extension portion,
A gap is provided between the tip of the arm and the extension.
The hub device according to claim 2 or 3. body and
a plurality of terminal portions provided on the body and capable of electrically connecting a plurality of wirings including at least a plurality of communication wirings for communication;
an attachment part for attaching the body to a structure forming part of a building;
a holding member provided separately from the plurality of terminal parts and holding at least one wiring among the plurality of wirings electrically connected to the plurality of terminal parts;
The holding member is
a proximal end coupled to the body;
two arm parts protruding from the base end part,
The protruding tips of each of the two arm portions face each other with a gap between them.
hub device. A through hole is formed in the holding member, through which the at least one wiring is passed.
The hub device according to any one of claims 1 to 4. A notch is formed in the holding member, through which the at least one wiring is passed.
The hub device according to any one of claims 1 to 4. Further comprising a mounting substrate including an electronic component and a substrate on which the electronic component is mounted,
The body has an internal space,
the mounting board is disposed in the space inside the body,
A hub device according to any one of claims 1 to 8.

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