KR20130128705A - Usb cable with fast charging fuction - Google Patents

Abstract

The present invention relates to a USB cable capable of quick charging. A USB cable capable of quick charging, given in the present invention, includes a first connection member which is connected to a mobile device; a second connection member which is connected to the first connection member through a certain connection line and is also connected to an electronic device with a USB access port; and a mode switch which connects a DATA + terminal and a DATA – terminal, which are formed between the first connection member and the second connection member, respectively, or applies a certain voltage

Description

USB cable which can charge fast {USB CABLE WITH FAST CHARGING FUCTION}

The present invention relates to a USB (Universal Serial Bus) cable capable of rapid charging, and more particularly, to a USB cable capable of rapid charging and data transfer according to the situation by having a separate mode conversion switch on the USB cable.

Generally, USB cables are used a lot to charge portable devices. 1 is an example of a conventional USB cable. The USB cable may include a first connection member 10 connected to a USB terminal provided in a portable device to be supplied with a charging current, and a second terminal connected to a USB terminal provided in an electronic device supplying a charging current such as a computer or a charger. It is composed of a connecting member (20). One end of the first connection member 10 is provided with a first connector 11 connected to a USB terminal provided in a portable device for receiving a charging current and an LED lamp 15 for checking a charging state indicating a charging state. One end of the second connection member 20 is provided with a second connector 21 connected to a USB terminal provided in a computer or a charger. The other end of the first connection member 10 and the other end of the second connection member 20 are usually connected by a connection line 30.

Prior Art Document 1 also provides a USB charging cable suitable for forming a USB terminal to a charger connected to a commercial power source. The cable known in the prior art document 1 has the advantage that can be provided by a USB charging cable that can be charged through a charger connected to a commercial power source or connected via a USB terminal of the computer, but can perform a quick charge It did not provide the ability to do so.

Prior Art Document 1: Korean Utility Model Publication No. 20-410889, registered March 3, 2006

An object of the present invention is to solve the above problems, and to provide a USB cable capable of fast charging according to the situation or, in some cases, fast charging capable of processing data transmission at the same time as the low-speed charging.

The object of the present invention is a first connection member connected to a portable device that is supplied with a charging current, and the first connection member is connected to the electronic device is connected to the first connection member by a predetermined connection line, supply the charging current and the USB connection terminal is formed The fast charging includes a second connection member and a mode conversion switch for switching the DATA + terminal and the DATA − terminal formed between the first connection member and the second connection member to each other or to apply a separate voltage. Achievable by a possible USB cable.

According to the USB cable capable of fast charging according to the present invention, separate voltages are applied to the DATA + terminal and the DATA-terminal during the rapid charging, and the DATA + terminal and the DATA-terminal of the first connection member during data transmission. The DATA + terminal and the DATA-terminal of the second connection member are connected to each other to enable rapid charging during charging using a single USB cable, and to enable charging and data transfer at a normal speed during data transmission.

1 is an exemplary view of a conventional USB cable.
Figure 2 is an example of a USB cable of an embodiment according to the present invention.
3 is an equivalent circuit diagram of the USB cable of the embodiment shown in FIG.
Figure 4 is an example of a USB cable of another embodiment according to the present invention.
FIG. 5 is an equivalent circuit diagram of a mode conversion switch switched to a separate voltage state in the USB cable of the embodiment shown in FIG. 4. FIG.
FIG. 6 is an equivalent circuit diagram of a mode conversion switch switched to a data transfer state in the USB cable of the embodiment shown in FIG. 4; FIG.
Figure 7 is an example of a USB cable of another embodiment according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

2 is an example of a USB cable of an embodiment according to the present invention. 2 and 3 illustrate an example in which the first connection member 10 has a female micro USB terminal form, and the second connection member 20 has a general USES terminal form. will be. The USB cable according to the present invention includes a first connection member 10 connected to a USB terminal provided in a portable device to be supplied with a charging current, and a second terminal connected to a USB terminal provided in a computer or a charger supplying a charging current. It is composed of a connecting member (20). One end of the first connection member 10 is provided with a first connector 11 connected to a USB terminal provided in the portable device and a mode conversion switch 34 for switching between a DATA + terminal and a DATA − terminal. One end of the second connection member 20 is provided with a second connector 21 connected to a USB terminal provided in a computer or a charger. The other end of the first connection member 10 and the other end of the second connection member 20 are usually connected by a connection line 30.

3 is an equivalent circuit diagram of the USB cable of the embodiment shown in FIG. It can be seen that the first connection member 10 has a mode conversion switch 34 for switching the DATA + terminal and the DATA − terminal. When changing to a separate voltage state by using the mode conversion switch 34 attached to the USB cable according to the present invention, the DATA + terminal and the DATA-terminal is formed in a separate voltage state (mutual short) and such a short Will recognize and switch to the fast charge mode. When the mode change switch 34 attached to the USB cable according to the present invention is changed to the second voltage (open state), the DATA + terminal and the DATA-terminal of the first connection member 10 are respectively connected to the second connection member. Switched to be connected to the DATA + terminal and the DATA-terminal of (20), the portable device recognizes this, and the USB cable according to the present invention is capable of data transfer with charging at a normal speed rather than rapid charging.

In the above description, the mode conversion switch 34 is described as being provided in the first connection terminal 10. However, the mode conversion switch 34 needs only to electrically switch the DATA + terminal and the DATA-terminal. Of course, it may be provided between the terminal 20 or the first connecting terminal and the second connecting terminal. The mode switch 34 is preferably configured as a toggle switch, the first connection terminal 10 or the second connection terminal 20 has a LED lamp for checking the status indicating the state of the mode conversion switch 34 It is preferable to further provide.

Figure 4 is an example of a USB cable of another embodiment according to the present invention. 4, 5, and 6 show an example of a 30-pin connector 21 in which the first connector 10 is provided in the iPhone, and the second connector 20 is of a general size. The case of having a USS terminal form is shown. The USB cable according to the present invention includes a first connection member 10 connected to a USB terminal provided in a portable device to be supplied with a charging current, and a second terminal connected to a USB terminal provided in a computer or a charger supplying a charging current. It is composed of a connecting member (20). One end of the first connection member 10 is provided with a first connector 11 connected to a USB terminal provided in the portable device, and a mode conversion switch 34 for switching the DATA + terminal and the DATA − terminal. One end of the connection member 20 is provided with a second connector 21 connected to a USB terminal provided in a computer or a charger. The other end of the first connection member 10 and the other end of the second connection member 20 are usually connected by a connection line 30.

5 and 6 are equivalent circuit diagrams of the USB cable of the embodiment shown in FIG. It can be seen that the mode conversion switch 34 capable of switching the DATA + terminal and the DATA − terminal is provided between the first connection member 10 and the second connection member 20. In addition, between the first connection member 10 and the second connection member 20, a voltage for supplying the voltage divided by the R3 and R4 resistors is applied to the voltage applied between the power terminal and the ground (GND) terminal. It can be seen that the terminal and the b terminal for supplying the voltage divided by the R1 and R2 resistors are further provided.

When the mode change switch 34 attached to the USB cable according to FIG. 4 is changed to a separate voltage state, as shown in FIG. 5, the DATA − terminal of the first connection member 10 is connected to the a terminal. The DATA + terminal of the first connection member 10 is connected to the b terminal, and the portable device recognizes this separate voltage state and switches to the quick charge mode.

When the mode change switch 34 attached to the USB cable according to FIG. 4 is changed to the data transmission state, as illustrated in FIG. 6, the DATA − terminal of the first connection member 10 is connected to the second connection member 20. ) Is connected to the DATA-terminal of the first connecting member 10 and the DATA + terminal of the second connecting member 20 is connected to the DATA + terminal of the second connecting member 20. As it progresses, it switches to the data transfer mode.

In the above description, the mode conversion switch 34 is provided between the first connection terminal 10 and the second connection terminal 20. However, the mode conversion switch 34 is electrically connected to the DATA + terminal and the DATA − terminal. Since it can be switched to the first connection terminal 10 or between the first connection terminal 10 and the second connection terminal 20 may be provided, of course. The mode switch 34 is preferably configured as a toggle switch, the first connection terminal 10 or the second connection terminal 20 has a LED lamp for checking the status indicating the state of the mode conversion switch 34 It is preferable to further provide.

Figure 7 is an example of a USB cable of another embodiment according to the present invention. An example of the USB cable shown in FIG. 7 is in the form of a 30-pin connecting terminal 21 in which the first connecting member 10 is provided in the iPhone, and the second connecting member 20 is in the form of a male micro USB terminal 10. It is a case having a. Since the embodiment of FIG. 7 differs only in the shape of the circuits shown in FIGS. 4, 5 and 6 and the second connection member 20, the circuit operation and the like are the same as those shown in FIGS. 5 and 6, and thus detailed descriptions thereof will be omitted. do.

While specific embodiments of the invention have been illustrated and described, it will be obvious that the same may be varied in many ways by those skilled in the art without departing from the spirit of the invention. Such modified embodiments shall not be individually understood from the spirit and scope of the present invention, but rather should be regarded as being within the scope of the appended claims.

10: first connector 11: first connector
15: LED lamp for checking the charging status 20: second connector
21: second connector 34: mode conversion switch
R1, R2, R3, R4: Resistance

Claims (9)

A first connection member connected to a portable device and including a DATA − terminal and a DATA + terminal;
It is electrically connected to the first connection member and connected to an electronic device having a USB connection port, and includes a second connection member including a DATA − terminal and a DATA + terminal,
A rapid change mode switch is provided to connect the DATA − terminal and the DATA + terminal of the first connecting member to the corresponding DATA − terminal and the DATA + terminal of the second connecting member, or to maintain a separate voltage state. USB cable that can be charged.
The method of claim 1,
The first connecting member and the second connecting member is connected to the fast connecting wire, characterized in that the USB cable.
3. The method according to claim 1 or 2,
The second connection member further includes a power terminal and a ground terminal, and the mode-switching switch has a separate voltage, and the DATA − terminal and the DATA + terminal of the first connection member are divided voltages between the power terminal and the ground terminal. USB cable capable of fast charging, characterized in that the switching to be connected to each.
The method of claim 3, wherein
R3 and R4 resistors are installed in series between the power terminal and the ground terminal, and R1 and R2 resistors are installed in series between the power terminal and the ground terminal. In the voltage state, the DATA − terminal of the first connecting member is connected to the interconnection point of the R3 and R4 resistors and the DATA + terminal of the first connecting member is switched to be connected to the interconnection point of the R1 and R2 resistors. The USB cable which is available for quick charge characterized by.
The method according to claim 3 or 4,
The mode conversion switch is a USB cable capable of fast charging, characterized in that the first connection member is provided.
The method according to claim 3 or 4,
The mode conversion switch is a USB cable capable of fast charging, characterized in that the toggle switch.
The method according to claim 3 or 4,
USB cable for quick charging, characterized in that the LED lamp for checking the status of the mode conversion switch is further provided.
3. The method according to claim 1 or 2,
The first connecting member is a female type micro USB terminal, fast charging UBS cable, characterized in that.
3. The method according to claim 1 or 2,
The first connecting member is a terminal for connecting with the 30-pin terminal provided in the iPhone and the second connecting member is a male micro USB cable capable of fast charging, characterized in that the USB cable.

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