The present invention relates to a modular hub, and more particularly to a modular hub having a control circuit for active power distribution.
Nowadays, consumers may use the USB port of a personal computer for charging. There are various mobile devices on the market. A person may own at least two mobile devices, such as a smart phone, an external hard disk, a tablet computer, a digital camera, and the like. The number of USB ports on small-sized notebooks may be not enough for consumers. The user may purchase a USB hub to increase the number of USB ports. Although a conventional USB hub allows multiple mobile devices to transmit data at the same time, the USB ports of a normal apparatus provide a limited power source. In order to avoid the overcurrent of the USB port, the mobile devices are allowed to be charged in a standard mode only. The hub is unable to provide a fast charging function. In addition, in order to satisfy the fast charging mode of a plurality of mobile devices, the USB hub must have a power supply with a high power, so the size and the manufacturing cost of the USB hub are also increased. When the size of the USB hub is too large, it is not easy for the user to carry. In addition, when the manufacturing cost of the USB hub is too high, it is not beneficial for the USB hub to be put into mass production.
Therefore, those with ordinary knowledge in the field consider how to design a hub that is easy to carry, has a variety of choices, and facilitates mass production.
In order to solve the above problem, the primary object of the present invention is to provide a modular hub which has the advantages of being easy to carry and facilitating mass production. Moreover, it can be combined with modular devices of different specifications and different interfaces, so consumers have more diversified choices and flexibility in use.
A modularized hub of the present invention is adapted to be electrically connected to an upstream device, an AC power source and at least one downstream device that are located outside the modularized hub. The upstream device includes a connection port. The connection port supports a power supply mode and a charging mode. The modularized hub comprises a main body base and a module structure. The main body base comprises an AC connection terminal, a first power supply module, and a base connection terminal. The module structure includes a module connection terminal, a second power supply module, an upstream transmission line, a control circuit, and at least one downstream connection terminal. Wherein, the AC connection terminal is adapted to be electrically connected to the AC power source. The first power supply module is electrically connected to the AC connection terminal. The base connection terminal includes a first data transmission line and a first power transmission line. The first data transmission line and the first power transmission line are connected to the first power supply module. The module connection terminal corresponds to the base connection terminal. The module connection terminal includes a second data transmission line and a second power transmission line. When the module connection terminal is connected to the base connection terminal, the second data transmission line is electrically connected to the first data transmission line, and the second power transmission line is electrically connected to the first power transmission line. The second power supply module is electrically connected to the second data transmission line and the second power transmission line. The upstream transmission line is adapted to be electrically connected to the connection port. The upstream transmission line includes a third data transmission line and a third power transmission line. The third power transmission line is electrically connected to the second power supply module. The control circuit is electrically connected between the second data transmission line and the third data transmission line. The upstream device can be switched between the power supply mode and the charging mode through communication between the control circuit, the second power supply module and the upstream device. The downstream connection terminal includes a fourth power transmission line. The fourth power transmission line is electrically connected to the second power supply module. The module structure is detachably coupled to the main body base.
According to the above modularized hub, when the AC connection terminal is electrically connected to the AC power source, the connection port is in the charging mode; when the AC connection terminal is not electrically connected to the AC power source, the connection port is in the power supply mode.
According to the above modularized hub, the module structure further includes a signal controller, and the signal controller is electrically connected to the control circuit and the second power supply module.
According to the above modularized hub, the downstream connection terminal further includes a fourth data transmission line, and the fourth data transmission line is electrically connected to the signal controller.
According to the above modularized hub, the upstream transmission line further includes a fifth data transmission line, the fifth data transmission line is electrically connected to the signal controller, and the signal controller is adapted to perform data transmission between the upstream device and the downstream device.
According to the above modularized hub, the upstream transmission line is a USB type-C transmission line, and the upstream device is a notebook computer.
According to the above modularized hub, the downstream connection terminal is a USB connection terminal, an HDMI connection terminal or an RJ45 connection terminal. The downstream device is a smart phone or a display screen.
According to the above modularized hub, the main body base is combined with the module structure by a magnetic means or a groove in cooperation with a slide rail.
According to the above modularized hub, the main body base further includes a button structure, and the module structure further includes a T-shaped recess corresponding to the button structure.
The above modularized hub further comprises an external component. The external component is coupled to the main body base and the module structure by means of hooks.
According to the above modularized hub, the module structure further includes an energy storage component. The energy storage component is electrically connected to the second power supply module. When the AC connection terminal is electrically connected to the AC power source, the energy storage component is in the charging mode; when the AC connection terminal is not electrically connected to the AC power source, the energy storage component is in the power supply mode.
According to the above modularized hub, the module structure further includes a display screen and a digital image processing module. The digital image processing module is electrically connected to the display screen, the upstream transmission line, and the downstream connection terminal.
Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings.
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In the above, the modular hub 10 is adapted to be electrically connected to an external upstream device 7 and at least one external downstream device 8. The upstream device 7 is, for example, a notebook computer. The downstream device 8 is, for example, a smart phone or a display the screen. The upstream device 7 includes a connection port 71, such as a USB type C interface. The connection port 71 supports a power supply mode and a charging mode. In other words, the upstream device 7 (notebook) supports the power supply mode and the charging mode.
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In addition, the second power supply module 134 is electrically connected to the second data transmission line 133D and the second power transmission line 133E. The upstream transmission line 131 is adapted to be electrically connected to the connection port 71. The upstream transmission line 131 includes a third data transmission line. 131D, a third power transmission line 131E, and a fifth data transmission line 131F. The third power transmission line 131E is electrically connected to the second power supply module 134. In addition, the downstream connection terminal 132 is, for example, a USB connection terminal (corresponding to a smart phone), an HDMI connection terminal (corresponding to a display screen), or an RJ45 connection terminal. The downstream connection terminal 132 includes a fourth power transmission line 132E and a fourth data transmission line 132D. The fourth power transmission line 132E is electrically connected to the second power supply module 134. Both the fourth data transmission line 132D and the fifth data transmission line 131F are electrically connected to the signal controller 136. The signal controller 136 is adapted to perform data transmission between the upstream device 7 and the downstream device 8. In the above, since the third power transmission line 131E and the fourth power transmission line 132E are electrically connected to the second power supply module 134, the power of by the upstream device 7 can be transmitted to the downstream device 8.
In addition, the control circuit 135 is electrically connected between the second data transmission line 133D and the third data transmission line 131D. Through the communication between the control circuit 135 of the module structure 13, the second power supply module 134 and the upstream device 7, the upstream device 7 can be switched between the power supply mode and the charging mode. In detail, when the module structure 13 is combined with the main body base 12, but the AC connection terminal 121 is not electrically connected to the AC power source 6, the connection port 71 of the upstream device 7 is in the power supply mode, thereby enabling the control circuit 135 and the signal controller 136 to operate and allowing the control circuit 135 to communicate with the second power supply module 134 at any time. The control circuit 135 can inform the upstream device 7 of the current status of the second power supply module 134 at any time. On the contrary, when the AC connection terminal 121 is electrically connected to the AC power source 6, the second power supply module 134 receives the power of the first power supply module 122, and the control circuit 135 instructs the upstream device 7 to stop the power supply mode. After that, the control circuit 135 requests the second power supply module 134 to output the voltage to the upstream transmission line 131, and then instructs the upstream device 7 to switch the connection port 71 to the charging mode, and finally adjusts the output voltage value required for the upstream device 7.
When the module structure 13 is detached from the main body base 12, the second power supply module 134 loses electrical connection with the first power supply module 122, and the control circuit 135 immediately instructs the upstream device 7 to stop the charging mode of the connection port 71. Thereafter, the control circuit 135 requests the second power supply module 134 to cut off the power supply to the upstream transmission line 131. The control circuit 135 instructs the upstream device 7 to restore the connection port 71 to the power supply mode, so that the power of the upstream device 7 can be supplied to the downstream device 8. Therefore, compared with the conventional USB hub, after the module structure 13 of the modular hub 10 of the embodiment is separated from the main body base 12, The downstream device 8 (smart phone) can still charge or transmit data via the module structure 13 and the upstream device 7, so the user can charge or transmit data to smart phones by carrying the module structure 13. Since the module structure 13 is lighter and smaller, this embodiment may be directed to mass production for the module structure 13. In addition, because it is not required for the user to carry the main body base, the main body base 12 may have a large size to accommodate the high-power first power supply module 122 (corresponding to the power supply). In addition to the module structure 13, the main body base 12 can be selectively combined with other different modular devices, so it is more flexible for use.
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In summary, the modular hub of the present invention has the advantages of being easy to carry and facilitating mass production. Moreover, the present invention can combine different modular devices, so it is more flexible for use.
Although particular embodiments of the present invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the present invention. Accordingly, the present invention is not to be limited except as by the appended claims.
Number | Date | Country | |
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62581046 | Nov 2017 | US |