CN205015832U - KVM switch with fast charging - Google Patents

Abstract

The utility model provides a many computer switching device with quick function of charging can carry out the charging of different speeds to electron device according to whether electron device has the function of charging soon. If the electronic device does not have the quick charging function, the multicomputer switching device charges the electronic device by a first current; if the electronic device has the quick charging function, the KVM switch performs quick charging on the electronic device with a second current higher than the first current. In addition, the KVM switch can link the input/output device to one of the hosts through a switch circuit, so that the input/output device can control the selected host. Therefore, the user can charge the electronic device at different speeds while controlling the selected host machine by using the input and output device.

Description

KVM switch with fast charging

technical field

The utility model is to provide a multi-computer switching device, in particular a multi-computer switching device with fast charging function.

Background technique

In recent years, due to the rapid development of smart mobile device technology, and the increasing use and dependence of consumers on smart mobile devices, smart mobile devices have become an indispensable necessity in today's human life. In addition, the market is also actively developing peripheral products related to portable smart devices to meet various needs of consumers. In addition to smart mobile devices, the audio-visual multimedia entertainment industry has always occupied a certain proportion in the consumer market, among which multi-computer switching devices integrating input and output devices (such as keyboards, mice, screens, etc.) Popular with home use.

However, for users, smart mobile devices generally have the problem of insufficient power storage. Therefore, when the user uses the smart mobile device for a period of time, it needs to be charged; and under the trend of increasing user dependence, the charging time must be shortened to satisfy consumers. Therefore, the development of fast charging for smart mobile devices has recently become the main development focus of relevant industry players.

Therefore, if the fast charging technology of the smart mobile device can be integrated into the KVM switch, the user will be able to charge the smart mobile device while using the KVM switch to control one of the hosts.

Utility model content

The embodiment of the utility model provides a multi-computer switching device with a fast charging function, which is coupled to an input and output device, an electronic device, and a plurality of hosts, so that the input and output devices are linked through the multi-computer switching device and control one of the hosts . The KVM switching device includes a power source end, a USB (UniversalSerialBus, Universal Serial Bus) port and a power conversion module. The power source end is used to output a first current. The USB port is electrically connected to the electronic device, and is used for transmitting a fast charging signal generated by the electronic device. The power conversion module is coupled between the power source end and the USB port, and receives a first current generated by the power source end. The power conversion module includes a detection unit and a current adjustment unit. The detection unit is electrically connected to the USB port, and is used to detect whether a fast charging signal is received. The current adjustment unit is electrically connected between the power source end, the USB port and the detection unit. When the detection unit detects the fast charging signal, the detection unit controls the current adjustment unit to convert the first current into a second current, and output the second current to the electronic device through the USB port, and the second current is higher than the first current ; and when the detection unit does not detect the fast charging signal, the detection unit controls the current adjustment unit to output the first current to the electronic device through the USB port.

It can be known from the above that the multi-computer switching device provided by the embodiment of the present invention can charge the electronic device at different speeds according to whether the electronic device has the fast charging function. If the electronic device does not have a fast charging function, the KVM switching device will charge the electronic device with a first current; and if the electronic device has a fast charging function, the KVM switching device will charge the electronic device with a second current higher than the first current Perform fast charging. In addition, the KVM switching device can connect the I/O device to one of the multiple hosts through a switching circuit, so that the I/O device can control the selected host. Accordingly, the user can charge the electronic device at different speeds while using the input and output device to control the selected host.

The above descriptions about the content of the utility model and the following descriptions of the embodiments are used to illustrate and explain the principles of the utility model, and provide further explanations of the patent application scope of the utility model, but these descriptions and the accompanying drawings are only used To illustrate the utility model, but not to limit the scope of rights of the utility model.

Description of drawings

Fig. 1 is the schematic block diagram of the multi-computer switching device of the utility model embodiment;

2 is a schematic block diagram of a multi-computer switching device according to another embodiment of the present invention;

Fig. 3 is a schematic diagram of a multi-computer switching device according to an embodiment of the present invention.

[Explanation of main reference signs]

10: input and output device, 20: multi-computer switching device, 201: power source,

202: power conversion module, 2021: current adjustment unit, 2022: detection unit,

203: USB port, 204: switching circuit, 205: control unit, 30: electronic device,

401, 402: host, 50: remote controller, 60: external power device, AC1: first current,

AC2: second current, CS: fast charging signal, 310: input and output device, 311: mouse,

312: keyboard, 313: screen, 320: multi-computer switching device, 330: mobile phone,

3401, 3402: host, 360: mains power supply terminal.

detailed description

In order to allow an electronic device with a fast charging function to perform fast charging, an embodiment of the present invention provides a multi-computer switching device with a fast charging function.

When the KVM switching device is connected to the electronic device, the detection unit in the power conversion module can detect whether the electronic device sends out a fast charging signal (indicating whether the electronic device has a fast charging function). When the detection unit receives the fast charging signal sent by the electronic device, the control current adjustment unit adjusts the first current to a second current higher than the first current, and outputs the second current through the USB (Universal Serial Bus, Universal Serial Bus) port. The current is sent to the electronic device to quickly charge the electronic device; relatively, when the detection unit does not detect the fast charge signal, the current adjustment unit is controlled to output the first current to the electronic device through the USB port, so as to normally charge the electronic device Speed charging.

Hereinafter, the present invention will be described in detail by illustrating various exemplary embodiments of the present invention by means of accompanying drawings. However, the inventive concepts may be embodied in many different forms and should not be construed as limited to the illustrative embodiments set forth herein. Furthermore, the same reference numerals may be used to denote similar components in the drawings.

Embodiment of KVM switching device with fast charging function

First, please refer to FIG. 1 , which is a schematic block diagram of a KVM switching device according to an embodiment of the present invention. The KVM switching device 20 in FIG. 1 includes a power source 201 , a power conversion module 202 , a USB port 203 , a switching circuit 204 and a control unit 205 . The power source terminal 201 is used for outputting a first current AC1. The USB port 203 is electrically connected to the electronic device 30 and is used for transmitting the fast charging signal CS generated by the electronic device 30 . The power conversion module 202 is coupled between the power source terminal 201 and the USB port 203 to receive the first current AC1. When the power conversion module 202 detects the fast charging signal CS, it converts the first current AC1 into a second current AC2 higher than the first current AC1, and outputs the second current AC2 to the electronic device 30 through the USB port 203; relatively , when the power conversion module 202 does not detect the fast charging signal CS, then output the first current AC1 to the electronic device 30 through the USB port 203 . In this embodiment, the electronic device 30 may be a smart phone, a tablet computer, a Personal Digital Assistant (PDA) or other portable electronic devices, and the embodiment of the present invention does not limit the implementation of the electronic device 30 .

Furthermore, the power conversion module 202 includes a detection unit 2022 and a current adjustment unit 2021 . The detection unit 2022 is electrically connected to the USB port 203 and used for detecting the fast charging signal CS sent by the electronic device 30 . The current adjustment unit 2021 is electrically connected between the power source terminal 201 , the USB port 203 and the detection unit 2022 . When the detection unit 2022 detects the fast charging signal CS, the control current adjustment unit 2021 converts the first current AC1 into a second current AC2 higher than the first current AC1, and outputs the second current AC2 to the electronics through the USB port 203. device 30 ; otherwise, when the detection unit 2022 does not detect the fast charge signal CS, control the current adjustment unit 2021 to output the first current AC1 to the electronic device 30 through the USB port 203 . It should be noted that the value of the second current AC2 is higher than the value of the first current AC1, so that when the detection unit 2022 detects that the electronic device 30 has the fast charging function (that is, detects the fast charging signal CS), it can The second current AC2 higher than the first current AC1 performs fast charging on the electronic device 30 . In this embodiment, the power source 201 may be a power supply, a rechargeable battery device, etc., and the embodiment of the present invention does not limit the implementation of the power source 201 .

Next, the USB port 203 can be of USB1.0 specification, USB2.0 specification, USB3.0 specification or USB3.1 specification, and the embodiment of the present utility model does not limit the implementation manner of the USB port 203 . The USB port 203 of this embodiment may include 4 pins, which are respectively pin 1, pin 2, pin 3, and pin 4 (not shown in the accompanying drawings), pin 1 is the power supply Vcc pin, pin Pin 2 is the Data- pin, pin 3 is the Data+ pin, and pin 4 is the ground pin; pin 1 and pin 4 are used to provide power; pin 2 and pin 3 are used to transmit signal data to Twisted pair transmission, each using half-duplex differential signals and working together.

For example, the first current AC1 proposed by the embodiment of the present invention may be 400mA-600mA, and the second current AC2 may be 800mA-2000mA. When the electronic device 30 is connected to the KVM switching device 20 , the detection unit 2022 in the power conversion module 202 will detect whether the electronic device 20 sends out the fast charging signal CS. When the detection unit 2022 detects the fast charging signal CS, the detection unit 2022 controls the current adjustment unit 2021 to adjust the first current AC1 to the second current AC2. The current value of the electronic device 30 is adjusted from 500mA to 2A, and output to the electronic device 30 through the USB port 203 to perform fast charging on the electronic device 30; otherwise, if the detection unit 2022 does not detect the fast charging signal CS of the electronic device 30, Then the current adjustment unit 2021 directly outputs 500mA provided by the power source terminal 201 to the electronic device 30 through the USB port 203 to charge the electronic device 30 at a normal speed. The value ranges of the first current AC1 and the second current AC2 can be adjusted according to the actual situation, which is not limited by the present invention.

The switch circuit 204 is coupled between the input and output device 10 , the control unit 205 and the plurality of hosts 401 , 402 . When the switching circuit 204 in the KVM switching device 20 receives a control signal (not shown in the drawings) representing one of the hosts 401, 402, the switching circuit 204 will switch the corresponding host (such as The host 401) is linked to the input and output device 10. In this embodiment, the control signal is generated by the control unit 205 , and the control signal is transmitted to the switching circuit 204 in a wired or wireless manner. The control unit 205 can be a control key or a wireless remote controller, which is not limited in the present invention. In other words, the switching circuit 204 controls the links between the multiple hosts 401 , 402 and the I/O device 10 according to the control signal, so as to perform signal transmission between the corresponding host (such as the host 401 ) and the I/O device 10 . The input and output device 10 may be a mouse, a keyboard, a display or a game handle, etc., and the present invention is not limited thereto.

In this way, the multi-computer switching device proposed by the embodiment of the utility model can effectively achieve fast charging of the electronic device. If the electronic device supports the fast charging function, it will be converted into a relatively large current (such as the second current AC2 of FIG. 1 ). ) to charge it quickly, if the electronic device does not support the fast charge function, then charge it with a normal current (such as the first current AC1 in FIG. 1 ) at a normal speed. In addition, the multi-computer switching device proposed by the embodiment of the utility model can switch the links between multiple hosts and input and output devices, so as to improve the convenience of signal transmission and switching between multiple hosts.

Another embodiment of KVM switching device with fast charging function

Please refer to FIG. 2 . FIG. 2 is a schematic block diagram of a KVM switching device according to another embodiment of the present invention. As shown in FIG. 2 , different from the above-mentioned embodiment in FIG. 1 , the KVM switching device 20 is coupled to an external power device 60 and wirelessly connected to a remote controller 50 . The power source terminal 201 is coupled to the external power device 40 for transmitting the first current AC1 provided by the external power device 60 to the power conversion module 202 . The USB port 203 is electrically connected to the electronic device 30 and is used for transmitting the fast charging signal CS generated by the electronic device 30 . The power conversion module 202 is coupled between the power source terminal 201 and the USB port 203 and receives the first current AC1. When the power conversion module 202 detects the fast charging signal CS, it converts the first current AC1 into the second current AC2, and outputs the second current AC2 to the electronic device 30 through the USB port 203; otherwise, when the power conversion module 202 is not detected When the fast charging signal CS is detected, the first current AC1 is output to the electronic device 30 through the USB port 203 . In practice, the electronic device 30 can be a smart phone, a tablet computer, a Personal Digital Assistant (PDA) or other portable electronic devices, and the embodiment of the present invention does not limit the implementation of the electronic device 30 .

Relevant details about the power conversion module 202 have been described in detail in the above-mentioned embodiment of FIG. 1 , and will not be repeated here. In this embodiment, the power source 201 may be an internal power supply, a rechargeable battery device, etc., and the embodiment of the present invention does not limit the implementation of the power source 201 . Further details about the USB port 203 , the first current AC1 and the second current AC2 have been described in detail in the above-mentioned embodiment of FIG. 1 , and will not be repeated here.

In addition, in this embodiment, the remote controller 50 is wirelessly connected to the control unit 205 for wirelessly outputting control signals to the control unit 205 according to the user's operation instructions, and the control unit 205 will transmit the received control signals to the switching circuit 204 , the switching circuit 204 links the corresponding host (such as the host 401 ) to the I/O device 10 according to the control signal.

Next, please refer to FIG. 3 , which is a schematic diagram of a multi-computer switching device according to an embodiment of the present invention. For the convenience of description, the mobile phone 330 is used as an illustration for the electronic device, and the mains power supply 360 is used as an illustration for the external power device. The input and output device 310 of this embodiment includes a mouse 311 , a keyboard 312 , and a screen 313 . For example, the KVM switching device 320 is coupled between the host 3401 , the host 3402 , the mouse 311 , the keyboard 312 and the screen 313 , and is electrically connected to a commercial power supply 360 to receive power from the commercial power supply 360 . The user needs to connect the charging port of the mobile phone 330 to the KVM switching device 320 before charging. When the user connects the mobile phone 330 to the KVM switching device 320 and wants to charge the mobile phone 330 at the same time, the multi-computer device 320 first detects whether the mobile phone 330 sends out a fast charging signal representing that the mobile phone 330 can support the fast charging function (as shown in Figure 1-2 fast charge signal CS). When the multi-computer device 320 receives the fast charging signal sent by the mobile phone 330 (that is, the mobile phone 330 can support the fast charging function), the multi-computer device 320 will boost the power of the mains power supply 360, and will pull up the mains power supply 360 The power of the mobile phone 330 is transmitted to the mobile phone 330 to charge the mobile phone 330 quickly; relatively, when the KVM switching device 320 does not detect the fast charging signal, the power of the mains power supply 360 is directly transmitted to the mobile phone 330 to charge the mobile phone 330. The general charging procedure is performed on the mobile phone 330 .

Furthermore, the KVM switching device 320 can select one of the corresponding host 3401 or host 3402 to link with the mouse 311, keyboard 312, and screen 313 for signal transmission, and can switch the host in real time. 3401 or the host 3402 is linked with the input and output device 310 .

As can be seen from the above, the multi-computer switching device proposed by the embodiment of the present invention can effectively achieve fast charging of electronic devices. If the electronic device has the fast charging function, the KVM switching device converts it into a larger current to charge it; if the electronic device does not have the fast charging function, the KVM switching device charges it with a normal current. In addition, the multi-computer switching device proposed by the embodiment of the utility model can switch the link between the input and output devices and multiple host devices, so as to achieve high economic benefits in which multiple hosts are matched with a set of input and output devices to improve signal transmission And the convenience of switching between multiple hosts.

In summary, the utility model has actually met the requirements of a new patent, and an application is filed according to law. However, what is disclosed above is only a preferred embodiment of the present utility model, and cannot limit the scope of rights of this case. Therefore, equal changes or modifications made according to the scope of application of this case still fall within the scope of this case.

Claims (5)

1. one kind has the Kvm of quick-charge function, it is characterized in that, couple an input-output unit, multiple main frame and an electronic installation, this input-output unit linked by this Kvm and control those main frames one of them, and this Kvm comprises:

One power source end, in order to export one first electric current;

One USB port, is electrically connected this electronic installation, and in order to transmit produced by this electronic installation one fill signal soon; And

One power switching module, is coupled between this power source end and this USB port, and receives this first electric current, and this power switching module comprises:

One detecting unit, is electrically connected this USB port, and whether receives this fill signal soon in order to detecting; And

One current adjustment unit, is electrically connected at this power source end, between this USB port and this detecting unit;

Wherein, when this detecting unit detect this fill signal soon time, controls this current adjustment unit and convert this first electric current to one second electric current, and export this second electric current to this electronic installation by this USB port, and this second electric current is higher than this first electric current;

Wherein, when this detecting unit do not detect this fill signal soon time, control this current adjustment unit and export this first electric current to this electronic installation by this USB port.

2. Kvm as claimed in claim 1, it is characterized in that, more comprise a commutation circuit, be coupled between this input-output unit and those main frames, and receive representative control those main frames one of them one control signal, and according to this control signal this input-output unit of this host link by correspondence, to carry out signal transmission between this main frame and this input-output unit of correspondence.

3. Kvm as claimed in claim 2, it is characterized in that, wherein this control signal is sent to this commutation circuit in a wired or wireless fashion by a control module.

4. Kvm as claimed in claim 1, is characterized in that, wherein this power source end is the power supply unit producing this first electric current, or this power source end is electrically connected to the external power device producing this first electric current.

5. Kvm as claimed in claim 1, it is characterized in that, wherein this USB port is USB1.0 specification, USB2.0 specification, USB3.0 specification or USB3.1 specification.