JP2001069165A - Usb hub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a universal serial bus(USB) hub which does not require an AC adapter. SOLUTION: A USB hub 1 has a nearly rectangular parallelopiped body 2 and on the surface of the body 2, a pair of plug edges 6 for power source are projected. One USB connector 3 of B type to be freely attachably and detachably connected with a USB cable from a personal computer(PC) or upstream USB hub is provided on the face of the body 2 perpendicular to the surface where the plug edges 6 are projected, and four USB connectors 4 of A type to be freely attachably and detachably connected with a USB cable from peripheral equipment or downstream USB hub are provided on the face confronted to the face where the USB connector 3 is provided. Besides, a communication control part for controlling communication between the PC and the peripheral equipment respectively connected to the USB connectors 3 and 4 and a power source circuit part, to which a commercial power source is supplied through the plug edges 6, for converting the power supply voltage of the commercial power source to a fixed DC voltage and supplying it to the communication control part are housed inside the body 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a USB hub.

[0002]

2. Description of the Related Art In recent years, personal computers (hereinafter, referred to as personal computers).
USB (Universal Serial Bus) has been attracting attention as an interface for connecting peripheral devices to a personal computer). Up to 127 USBs can be connected via a USB hub when the personal computer has only one USB connector.
Devices can be connected in a tree. In the USB hub, a communication control unit for controlling communication between a personal computer and a USB device is provided inside, and an operation power supply of the communication control unit is an AC adapter that is supplied with a commercial power supply and outputs a constant DC voltage. Was supplied by In addition, the USB hub has a maximum of 5 V per port for USB devices (for example, a mouse and a keyboard) connected to the USB hub.
The standard is defined so as to be able to supply power of / 500 mA. In the case of self-power, the USB hub itself has a power supply, and supplies power supplied from, for example, an AC adapter to USB devices.

[0003]

In the USB hub having the above configuration, an AC adapter is used to supply power to a communication control unit and a USB device connected to the USB hub.
There is a problem that an AC adapter is required separately from the B hub. In addition, if the AC adapter is connected to an outlet or a power strip provided on the construction surface, the AC adapter becomes a hindrance, so that the power plug of another device cannot be connected to the remaining blade insertion slot. Was.

[0004] The present invention has been made in view of the above problems, and an object of the present invention is to provide a USB hub which does not require an AC adapter.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a housing provided with a plurality of USB connectors on a surface thereof, and a USB device connected to the USB connector. A communication control unit for controlling communication and a power supply circuit unit for converting an AC voltage of a commercial power supply into a constant DC voltage and supplying the communication control unit and a USB device connected to a USB connector are housed in the body. A plurality of blades electrically connected to a power supply circuit unit are provided on the surface of the container, and the communication unit includes a communication control unit that converts an AC voltage of a commercial power supply into a DC power. The power supply circuit for supplying to the USB device is provided inside the body, and the blade electrically connected to the power circuit is protruded from the surface of the body. Is supplied with commercial power, and the communication control unit and Power can be supplied to the SB device, and there is no need to use an AC adapter separately from the USB hub to supply power to the communication control unit and the USB device like a conventional USB hub, eliminating the AC adapter Can be.

According to the invention of claim 2, a plurality of USBs are provided on the surface.
A communication control unit for controlling communication between USB devices connected to the USB connector, and a communication control unit for converting an AC voltage of a commercial power supply into a constant DC voltage, A power supply circuit section for supplying a USB device connected to the connector is housed inside the body, and one end of the body is electrically connected to the power supply circuit section and a power plug is connected to the other end. The power supply circuit section is provided inside the body, and the power supply circuit section that converts the AC voltage of the commercial power supply to DC and supplies it to the communication control section and the USB device is provided inside the body. The power cable connected to the power cable is pulled out from the body, so insert the power plug connected to the end of the power cable into an outlet provided on a construction surface such as a wall to connect the power cable. As a result, commercial power is supplied to the power supply circuit unit, and power can be supplied from the power supply circuit unit to the communication control unit and the USB device. To supply power to the communication control unit and the USB device like a conventional USB hub, In addition, there is no need to use an AC adapter separately from the USB hub, and the AC adapter can be eliminated.

According to a third aspect of the present invention, in the second aspect of the present invention, the body is a polyhedron, and a magnet is provided on a surface other than the surface on which the USB connector is provided and the surface from which the power cable is extended. By magnetically attaching the magnet to the metal surface, the USB hub can be easily installed at a place other than the floor, and the USB hub does not roll on the floor and is not obstructed.

According to a fourth aspect of the present invention, in the second aspect of the present invention, the body is a polyhedron, and the body is attached to a surface other than a surface on which a USB connector is provided and a surface from which a power cable is pulled out. A mounting means for mounting a fixing bracket for fixing to the fixed portion is provided, and the fixing device attached to the body is fixed to the fixed portion by using the mounting means, so that a USB hub container is provided. The body can be securely fixed to the fixed portion.

According to a fifth aspect of the present invention, in accordance with the second to fourth aspects of the present invention, there is provided a power outlet having a blade insertion opening into which the blade of the power plug is inserted and a blade receiving spring. The electrical outlet is electrically connected to the power cable. By connecting a power cord from an electrical device to the power outlet, commercial power can be supplied to each electrical device. Thus, both a USB cable and a power cord from a personal computer or peripheral device can be connected to a USB hub, and the USB cable is
SB hub, power cord is like a table tap,
Compared to the case where the USB cable and the power cord are separately connected, the wiring can be performed in a lump, the storage space for the wiring can be reduced, and the appearance can be improved. Furthermore, when a USB hub and a table tap are used in combination, the appearance of the USB hub and the table tap is poor because the designs are different.
Since the power outlet portion is provided in the SB hub, a table tap is not required, and the appearance of the USB hub and the table tap are not deteriorated due to a different design.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, a connecting surface of the AC adapter for supplying a direct current to an electric device is provided with a plug blade on a surface of the body where the power outlet is provided. An AC adapter mounting surface is provided for mounting the AC adapter. The AC adapter blade is inserted into the blade insertion slot of the power outlet, and the AC adapter connection surface is mounted on the adapter mounting surface. Thus, the AC adapter can be stably connected to the USB hub.

[0011]

Embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1) A USB hub according to this embodiment will be described with reference to FIGS. The body 2 of the USB hub 1 is substantially rectangular parallelepiped, and a pair of power supply blades 6 are provided on one surface thereof. A surface substantially orthogonal to the surface on which the blade 6 is protruded is provided with a USB from a personal computer or an upstream USB hub.
Female B connector 3 to which the cable is detachably connected
And a plurality of (for example, four) female A connectors 4 to which a USB device or a USB cable from a downstream USB hub is detachably connected is provided on a surface facing the surface on which the B connector 3 is provided. ) Are provided, and the B connector 3 and the A connector 4 are electrically connected inside the housing 2. Here, USB connectors having different shapes A
A connector 4 and a B connector 3 are used. To prevent reverse insertion, an A connector 4 having a rectangular front face is used for upstream and a B connector 3 having a substantially square front face is used for downstream.
When the personal computer is viewed from the USB hub 1 or the USB device, the personal computer is referred to as upstream, and the USB hub 1 or USB device is referred to as downstream.

A communication control unit (not shown) for controlling communication between a personal computer and a USB device connected to the B connector 3 and the A connector 4, respectively, and a power supply from a commercial power supply are provided inside the housing 2. A power supply circuit unit 5 is supplied and converts the AC voltage of the commercial power supply into a constant DC voltage and supplies the converted DC voltage to a communication control unit and a USB device connected to the USB hub 1.
Here, the power circuit unit 5 and the blade 6 are electrically connected, and commercial power is supplied to the power circuit unit 5 through the blade 6. Further, on a surface of the body 2 opposite to the surface on which the blade 6 is protruded, a lighting display unit 7 made of, for example, a light emitting diode for displaying an operation state according to the lighting state corresponding to each USB connector 4. Is provided.

FIG. 3 is an explanatory diagram for explaining a use state of the USB hub 1. A male B connector 25b connected to an end of a USB cable 24b is connected to the B connector 3 provided on the USB hub 1, and a notebook personal computer 20 is connected to the USB hub 1 via the USB cable 24b. You. The A connector 4 provided on the USB hub 1 has U
A male A connector 25a is connected to the end of the SB cable 24a, and the mouse 21, printer 22, modem (or TA) 2 is connected via the USB cable 25a.
3 is connected. The USB devices connected to the USB hub 1 include, for example, a keyboard, a scanner, a CCD camera, a digital camera, a mouse 21, a printer 22, and a modem (or TA) 23.
There are joysticks, hub devices, speakers, and the like.

Here, the USB hub 1 and the personal computer 20
Commercial power is supplied to USB devices such as the printer 22 and the modem (or TA) 23 via the power strip 26. The table tap 26 is provided with four power outlets 28 each including a pair of blade insertion ports 27 and a blade receiving spring (not shown) housed inside the blade insertion port 27. Also, from one side of the table tap 26,
A power cord 29 electrically connected to the blade receiving spring is drawn out.
Are connected. The power plug 30 is, for example, a so-called multimedia outlet 3 arranged on a construction surface such as a wall surface.
2 and the power cord 2
9, a commercial power supply is supplied to the power strip 26, and the plug socket 6 of the USB hub 1 and the power plugs 2 of the personal computer 20 and the printer 22 are
0a, 22a and the AC adapter 31 for the modem (or TA) 23, the
Power is supplied via the power supply 6.

(Embodiment 2) A USB hub of this embodiment will be described with reference to FIGS. USB of Embodiment 1
In the hub 1, a pair of blades 6 are protruded from the body 2;
In the USB hub 1 of the present embodiment, a power cord 8 connected to a power plug 9 at one end from one surface of the body 2 is drawn out. When the power plug 9 of the power cord 8 is connected to a power outlet provided on a construction surface such as a wall surface, a power circuit portion (not shown) housed inside the housing 2 via the power cord 8. The power supply circuit unit converts the commercial power into DC and supplies the DC to a communication control unit and a USB device connected to the USB hub 1. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The housing 2 has a substantially rectangular parallelepiped shape, and the above-mentioned power cord 8 is drawn out from the surface where the area of the housing 2 is minimum. A plurality of (for example, four) lighting display units 7 are arranged side by side in the longitudinal direction on the surface (front surface) of the housing 2 having the largest area.

Further, magnets 10, 10 magnetically attached to a metal desk, cabinet, or the like are provided at both ends on a surface (back surface) of the body 2 opposite to the surface on which the lighting display unit 7 is provided. By magnetizing this magnet 10 on a metal surface such as a metal desk or cabinet,
USB hub 1 can be easily installed in places other than the floor, and USB
The hub 1 can be prevented from rolling on the floor and out of the way. Further, a mounting bracket 11 as a mounting means for mounting a fixing bracket 16 for fixing the main body 2 to a fixed portion such as a top plate of a desk is provided substantially at the center of the rear surface of the main body 2. The mounting bracket 11 is formed of a substantially strip-shaped plate, and a part of the plate is cut and raised to be connected to the mounting bracket 11 at both ends and a central part protrudes from the rear side of the body 2. , 11a are formed, and each protruding piece 11a is formed.
The claw pieces 11b, 11b projecting laterally are provided on both side edges of.

On the other hand, the fixing bracket 16 includes a fixing portion 17 to which the body 2 of the USB hub 1 is fixed via the mounting bracket 11,
It is connected to the fixing portion 17, and includes a substantially U-shaped holding portion 18 that holds a fixed portion such as a desk top plate between the fixing portion 17 and the fixing portion 17. The fixing portion 17 includes a substantially U-shaped mounting piece 17a, and a contact piece 1 that protrudes outward from both ends of the mounting piece 17a.
7b and 17b. The mounting piece 17a is formed with a groove 17c for locking with the claw piece 11b of the mounting bracket 11, and by locking the groove 17c with the claw piece 11b, the mounting bracket 11 (that is, the body 2 of the USB hub 1) is formed. ) Is fixed to the fixing portion 17. Here, the side piece 1 of the holding portion 18
By fixing a fixed portion such as a table top of a desk between 8a and the contact pieces 17b, 17b, the fixing bracket 16 is fixed to the fixed portion, and the body 2 of the USB hub 1 connects the fixing bracket 16 to the fixing portion. It is securely fixed to the portion to be fixed.

A female B connector 3 is provided on one of the surfaces adjacent to the surface on which the lighting display unit 7 is provided on the body 2 and the surface from which the power cord 8 is drawn out. A plurality of (for example, four) female A connectors 4 are provided on a surface opposite to this surface.
The connector 4 is electrically connected inside the body 2.

FIG. 6 is an explanatory diagram for explaining a usage state of the USB hub 1. To the B connector 3 provided on the USB hub 1, a male B connector 25b connected to one end of a USB cable 24b is connected.
The notebook-type personal computer 20 is connected via b. A male connector A 25 connected to the end of the USB cable 24a is connected to the A connector 4 provided on the USB hub 1, and the mouse 2 is connected via the USB cable 24a.
1, USB devices such as a printer 22 and a modem (or TA) 23 are connected. The USB devices connected to the USB hub 1 include a mouse 21, a printer 22,
In addition to the modem (or TA) 23, for example, there are a keyboard, a scanner, a CCD camera, a digital camera, a joystick, a hub device, a speaker, and the like.

Here, the personal computer 20 and the printer 2
2. Commercial power is supplied to a USB device such as a modem (or TA) 23 via a power strip 26. The table tap 26 is provided with four power outlets 28 each including a pair of blade insertion ports 27 and a blade receiving spring (not shown) housed inside the blade insertion port 27. A power cord 29 electrically connected to the blade receiving spring is drawn out from one surface of the table tap 26, and a power plug 30 is connected to a tip of the power cord 29. The power plug 30 is inserted into a power outlet portion 33 of a so-called multimedia outlet 32 provided on a construction surface such as a wall surface, and commercial power is supplied to the power strip 26 via a power cord 29. The power plugs 20 a and 22 a of the personal computer 20 and the printer 22 and the modem (or TA) 2
By connecting the AC adapter 31 for 3, power is supplied via the power strip 26.

(Embodiment 3) Since the personal computer 20 and the USB device connected to the USB hub 1 also require a power source, the USB hub 1 according to the second embodiment is
Separately, using the table tap 26, the personal computer 20 and U
The power cord from the SB device is
Although the SB cables 24a and 24b are connected to the USB hub 1, in this embodiment, as shown in FIG. 8, a pair of the blade insertion holes 12 and the blade insertion holes 12 are provided in the body 2 of the USB hub 1.
A plurality (for example, four) of power supply outlets 13 having a blade receiving spring (not shown) disposed at the back of
Power cord and USB from PC 20 or USB device
The cables 24a and 24b are both connected to the USB hub 1. Since the configuration other than the power outlet unit 13 is the same as that of the second embodiment, the same components are denoted by the same reference numerals and description thereof will be omitted.

The housing 2 has a substantially rectangular parallelepiped shape, and the above-described four power outlets 13 and four lighting display portions 7 are provided on the surface (front surface) having the largest area in the housing 2 in the longitudinal direction. The power cord 8 is drawn out from the surface of the housing 2 having the smallest area. Inside the container 2,
A blade receiving spring (not shown) that is electrically connected to the blade inserted from the blade insertion port 12 into the inside of the body 2 is provided with the blade insertion port 1.
The blade receiving spring is electrically connected to the power cord 8. When the power plug 9 provided at the end of the power cord 8 is inserted into a power outlet of a commercial power supply provided on a construction surface such as a wall, for example, the power outlet unit 13 is switched from the commercial power supply through the power cord 8. The power is supplied, and commercial power is supplied to devices connected to the power outlet unit 13.
A commercial power supply is supplied to a power supply circuit provided inside the housing 2, and the power supply circuit converts an AC voltage of the commercial power into a DC voltage, and is connected to the communication control unit and the USB hub 1.
Power is supplied to the SB device.

The power outlet unit 1 of the housing 2
3 and a surface on which the lighting display unit 7 is provided, and a surface adjacent to the surface from which the power cord 8 is drawn out, respectively.
The four female A connectors 4 are arranged side by side at the parts corresponding to the juxtaposed parts, and the female B connector (not shown) is arranged on the surface facing the side where the A connectors 4 are juxtaposed. ) Is provided.

As described above, the body 2 of the USB hub 1 includes:
A B connector to which a USB cable from a personal computer or an upstream USB hub 1 is connected, and a USB device or a downstream USB
Since the A connector 4 to which the USB cable from the B hub 1 is connected and the outlet 13 are provided, both the power cable and the USB cable of the personal computer or the USB device can be connected to the USB hub 1. Therefore, the power cable is connected to the power strip 26 and
The SB cable connects to the USB hub 1,
Compared to the case where the power cable and the USB cable are wired at different places, the power cable and the USB cable can be wired together better, the storage space for the wiring can be reduced, and the appearance can be improved. When using the USB hub 1 and the table tap 26 together,
Because the design of the hub 1 and the table tap 26 are different,
Although the appearance of the external appearance is poor, the table tap 26 is unnecessary in the present embodiment, so that the appearance of the external appearance is not deteriorated due to the different designs of the USB hub 1 and the table tap 26.

In the power strip of the present embodiment, the blade insertion port 12 of the power outlet unit 13 is formed in a substantially arc shape, and the blade of the power plug is inserted into the blade insertion port 12, When the power plug is rotated, the plug blade of the power plug and the blade receiving spring are locked to prevent the power plug from being removed. It is good. Further, although the power outlet unit 13 is not provided with a ground electrode, the power outlet unit 13 may be a two-pin retaining type with a ground electrode or a two-pin parallel plug blade type with a ground electrode. good.

As shown in FIGS. 9A to 9D,
A flat adapter mounting surface 14 extending in the longitudinal direction of the body 2 may be formed adjacent to the two power outlets 13 located at both ends of the four power outlets 13. This adapter mounting surface 14 has substantially the same size as the connection surface of the AC adapter on the side where the blade is inserted,
With the connection surface of the AC adapter placed on the adapter placement surface 14, the AC adapter is inserted into the outlet portion 13 by inserting the blade of the AC adapter into the blade insertion holes 12 of the outlet portions 13 located at both ends. It can be connected mechanically and electrically.

When the AC adapter is connected to the USB hub 1, the plug blade of the AC adapter is connected to the plug of the power outlet unit 13 while the connection surface of the AC adapter is mounted on the flat adapter mounting surface 14. The AC adapter is connected to the USB
The connection can be stably performed without protruding outside the hub 1. This eliminates the possibility that the AC adapter is disconnected from the USB hub 1, and solves the problem that power is not supplied to the personal computer and peripheral devices during use. Also, the adapter mounting surface 14 has the same size as the connection surface of the AC adapter, and the AC adapters connected to the power outlets 13 located at both ends are accommodated in the adapter mounting surface 14, so that the The two power outlets 13 located in the USB hub 1 are not closed by the AC adapter. As a result, the AC adapter can be stably supported on the USB hub 1 while the plug and the like are plugged together with the AC adapter. Can be connected.

FIG. 10 is an explanatory diagram for explaining the usage state of the USB hub 1. A male B connector 25b connected to one end of a USB cable 24b is connected to the B connector 3 provided on the USB hub 1, and a notebook personal computer 20 is connected via the USB cable 24b.
The A connector 4 provided on the USB hub 1 has a male A connector 2 connected to the end of the USB cable 24a.
5, and USB devices such as a mouse 21, a printer 22, and a modem (or TA) 23 are connected via the USB cable 24a. The USB devices connected to the USB hub 1 include a mouse 21 and a printer 2.
2. In addition to the modem (or TA) 23, for example, there are a keyboard, a scanner, a CCD camera, a digital camera, a joystick, a hub device, a speaker, and the like.

Further, the personal computer 20 and the printer 22
Power plugs 20a, 22b, modem (or TA)
The AC adapter 31 for 23 is connected to the power outlet unit 13 provided in the USB hub 1. Meanwhile, USB
Power plug 9 of power cord 8 pulled out of hub 1
Is connected to a power outlet unit 33 of a so-called multimedia outlet 32 provided on a construction surface such as a wall surface, and commercial power is supplied to the personal computer 20 and peripheral devices connected to the USB hub 1 via the USB hub 1. Supplied.

[0032]

As described above, according to the first aspect of the present invention, there is provided a body having a plurality of USB connectors provided on a surface thereof.
A communication control unit that controls communication between the USB devices connected to the B connector, and converts an AC voltage of a commercial power supply into a constant DC voltage and supplies the DC voltage to the communication control unit and a USB device connected to the USB connector A power supply circuit unit is housed inside the housing, and a plurality of blades electrically connected to the power supply circuit unit are provided on the surface of the housing so as to protrude therefrom,
Converts AC voltage of commercial power supply to DC and communication control unit and US
The power supply circuit for supplying the B equipment is provided inside the body,
Since the blade electrically connected to the power supply circuit protrudes from the surface of the body, commercial power is supplied to the power supply circuit via the blade and the communication controller and the USB device are supplied from the power supply circuit. To supply power to the communication control unit and USB devices like a conventional USB hub.
There is no need to use an AC adapter separately from the B hub.
The C adapter can be omitted.

[0033] According to a second aspect of the present invention, there is provided a communication control unit for controlling communication between USB devices connected to the USB connector, the communication control unit including a body having a plurality of USB connectors provided on a surface thereof;
A power supply circuit unit that converts an AC voltage of a commercial power supply into a constant DC voltage and supplies the communication control unit and a USB device connected to a USB connector is housed inside the housing, and one end from the housing. A power supply cable, which is electrically connected to a power supply circuit part and a power supply plug is connected to the other end, and converts an AC voltage of a commercial power supply into a direct current to a communication control unit or a USB device. The power supply circuit for supplying power to the power supply is provided inside the housing, and the power cable electrically connected to the power supply circuit is drawn out of the housing. By plugging into an outlet arranged on the construction surface such as
Commercial power is supplied to the power supply circuit via the power cable, and power can be supplied from the power supply circuit to the communication control unit and the USB device. The power supply is supplied to the communication control unit and the USB device like a conventional USB hub. There is no need to use an AC adapter separately from the USB hub to supply the power, and the AC adapter can be eliminated. Claim 2
The invention comprises a communication body for controlling communication between devices connected to the USB connector, and a communication control unit for controlling communication between devices connected to the USB connector, and converting an AC voltage of a commercial power supply into a constant DC voltage. And a power supply circuit unit for supplying the communication control unit is housed inside the housing. From the housing, one end is electrically connected to the power supply circuit unit and the other end is connected to a power plug. A power supply circuit is provided, and a power supply circuit section for converting an AC voltage of a commercial power supply to a direct current and supplying it to the communication control section is provided inside the body and is electrically connected to the power supply circuit section. Since the power cable is pulled out of the body, commercial power is supplied to the power circuit via the blade, and operating power can be supplied from the power circuit to the communication control unit. Operating power to the communication controller In order to supply, there is no need to use a separate AC adapter and a USB hub, there is an effect that it is possible to eliminate the AC adapter.

According to a third aspect of the present invention, in the second aspect of the invention, the body is a polyhedron, and a magnet is provided on a surface other than the surface on which the USB connector is provided and the surface from which the power cable is pulled out. By magnetically attaching the magnet to the metal surface, the USB hub can be easily installed at a place other than the floor, and the USB hub does not roll on the floor and is not obstructed.

According to a fourth aspect of the present invention, in the second aspect, the body is a polyhedron, and the body is attached to a surface other than a surface on which a USB connector is provided and a surface from which a power cable is drawn. An attachment means for attaching a fixing bracket to be fixed to the fixed portion is provided, and the fixing bracket attached to the container body is fixed to the fixed portion using the mounting means, so that the USB hub body is fixed. There is an effect that can be securely fixed to the portion to be fixed.

According to a fifth aspect of the present invention, in the second aspect of the present invention, the power supply unit includes a blade insertion port into which the blade of the power plug is inserted and a blade receiving spring. The electrical outlet is electrically connected to the power cable. By connecting a power cord from an electrical device to the power outlet, there is an effect that commercial power can be supplied to each electrical device. Thus, both the USB cable and the power cord from a personal computer or peripheral device can be connected to the USB hub, and the USB cable and the power cord are separated, such as a USB hub and a power strip. As compared with the case where the wiring is connected to the wiring, the wiring can be arranged in a better manner, the storage space for the wiring can be reduced, and the appearance can be improved.
Furthermore, when a USB hub and a table tap are used together, the appearance of the USB hub and the power strip is poor because the designs are different, but since the USB hub is provided with a power outlet,
The need for a table tap is eliminated, and the appearance of the appearance is not degraded due to the different design of the USB hub and the table tap.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, a connection is provided on the side of the body where the power outlet is provided, on the side provided with a plug blade of an AC adapter for supplying a direct current to electric equipment. It is characterized in that an adapter mounting surface for mounting the surface is provided, the plug blade of the AC adapter is inserted into the blade insertion port of the power outlet, and the connection surface of the AC adapter is mounted on the adapter mounting surface. This has an effect that the AC adapter can be stably connected to the USB hub.

[Brief description of the drawings]

FIGS. 1A and 1B show a USB hub according to a first embodiment, wherein FIG. 1A is a side view, FIG. 1B is a front view, FIG. 1C is a side view, and FIG.

FIG. 2 is an external perspective view of the same.

FIG. 3 is a diagram illustrating a usage state of the above.

4A and 4B show a USB hub according to a second embodiment, wherein FIG. 4A is a front view, FIG. 4B is a side view, FIG. 4C is a rear view, and FIG.

FIG. 5 is an exploded perspective view of the same.

FIG. 6 is a diagram illustrating a usage state of the above.

FIG. 7 is an exploded perspective view in which a part of the above is partially omitted.

FIG. 8 is an exploded perspective view showing the USB hub of the second embodiment.

9A and 9B show another USB hub of the above, wherein FIG. 9A is a front view, FIG. 9B is a side view, FIG. 9C is a rear view, and FIG. 9D is a side view.

FIG. 10 is a diagram illustrating a usage state of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 USB hub 2 Body 3, 4 USB connector 6 Plug blade

Claims (6)

[Claims] A communication control unit for controlling communication between USB devices connected to a USB connector, comprising: a body provided with a plurality of USB connectors on a surface thereof; The communication control unit and a power supply circuit unit for supplying to a USB device connected to a USB connector are housed inside the housing, and the surface of the housing is electrically connected to the power supply circuit unit. A USB hub characterized by comprising a plurality of blades protruding therefrom. A communication control unit for controlling communication between USB devices connected to the USB connector, a communication control unit for controlling communication between USB devices connected to the USB connector, and a constant DC voltage The communication control unit and a power supply circuit unit for supplying a USB device connected to a USB connector are housed inside the body, and one end of the body is electrically connected to the power supply circuit unit. A USB hub, wherein a power cable having a power plug connected to the other end is drawn out. 3. The USB according to claim 2, wherein the body is a polyhedron, and a magnet is provided on a surface other than the surface on which the USB connector is provided and the surface from which the power cable is drawn. Hub. 4. The body is a polyhedron, and is provided on a surface other than a surface on which a USB connector is provided and a surface from which a power cable is drawn out, for attaching a fixing bracket for fixing the body to a portion to be fixed. 3. The USB hub according to claim 2, wherein an attachment means is provided. 5. A power outlet unit having a blade insertion opening into which a blade of a power plug is inserted and a blade receiving spring, and the power outlet unit is electrically connected to a power cable. The USB hub according to any one of claims 2 to 4, wherein: 6. An adapter mounting surface for mounting a protruding connection surface of a plug blade of an AC adapter for supplying a direct current to an electric device is provided on a surface of the body where the power outlet is provided. The USB hub according to claim 5, wherein: