USB cable

A USB cable contains: a holder, a body, and a conductive assembly. The holder includes a protective shell, a connection disc, and a decoration cap. The protective shell has a first accommodation chamber, a fixing sheet, and a protection cap. The body includes a receiving seat, a male plug, a locking member, a fixer, a PCB, a resilient piece, and a covering member. The receiving seat has a second accommodation chamber. The conductive assembly includes a first lid, a second lid, a defining sheet, a PCB plug, and a retractable wire. The retractable wire is connected with the PCB of the body, the PCB plug is accommodated in the cross-cross groove of the covering member, the body is received in the first accommodation chamber of the protective shell of the holder, and the receiving seat is connected with the decoration cap.

FIELD OF THE INVENTION

The present invention relates to a USB cable which and is mounted on a backpack, a school bag, or a briefcase and contains a connection disc.

BACKGROUND OF THE INVENTION

A conventional mobile power device and a conventional USB cable are applied to charge electricity to a notebook computer, a tablet, and a smart phone.

The smart phone is electrically connected with an end of the USB cable, and the other end of the USB cable is electrically connected with the mobile power device. However, when the mobile power device is put in a backpack, a school bag, or a briefcase, the USB cable is winded easily. In addition, the backpack has to be opened before extending the USB cable out of the backpack.

SUMMARY OF THE INVENTION

One aspect of the present invention is to provide a USB cable which and is mounted on a backpack, a school bag, or a briefcase, wherein the USB device and the USB cable are pulled in a single direction so that the mobile power device and the smart phone are connected with the USB cable and the USB device without opening the backpack.

To obtain the above aspects, a USB cable provided by the present invention contains: a holder, a body, and a conductive assembly.

The holder includes a protective shell, a connection disc, and a decoration cap. The protective shell has a first accommodation chamber, a fixing sheet arranged on a bottom of the protective shell, and a protection cap connected on a peripheral wall of the protective shell. The connection disc is located behind the fixing sheet of the holder, and the decoration cap is received in the first accommodation chamber of the protective shell.

The body includes a receiving seat, a male plug, a locking member, a fixer, a PCB, a resilient piece, and a covering member. The receiving seat has a second accommodation chamber, and the fixer has two extension parts. The resilient piece is elongated, and the covering member has a cross-cross groove. The male plug, the locking member, the fixer, the PCB, and the resilient piece are accommodated in the second accommodation chamber of the receiving seat. The covering member is connected with the receiving seat.

The conductive assembly includes a first lid, a second lid, a defining sheet, a PCB plug, and a retractable wire. The defining sheet is configured to connect the PCB plug with an end of the retractable wire, and the first lid and the second lid is covered on the PCB plug and the defining sheet.

The retractable wire is connected with the PCB of the body, and the PCB plug is accommodated in the cross-cross groove of the covering member. The body is received in the first accommodation chamber of the protective shell of the holder, and the receiving seat is connected with the decoration cap.

Preferably, the protective shell, the decoration cap, the receiving seat, the fixer, the PCB, and the covering member are circular.

Preferably, the protective shell is made of silicone.

Preferably, the connection disc is a peripheral wall of any one of a backpack, a school bag, and a briefcase.

Preferably, the PCB plug is a three-way PCB plug.

Preferably, the retractable wire has a length.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference toFIGS. 1 to 4, a USB cable according to a preferred embodiment of the present invention comprises: a holder1, a body2, and a conductive assembly3.

The holder1includes a protective shell10, a connection disc11, and a decoration cap12. The protective shell10has a first accommodation chamber101, a fixing sheet102arranged on a bottom of the protective shell10, and a protection cap103connected on a peripheral wall of the protective shell10. The connection disc11is located behind the fixing sheet102of the holder1. The decoration cap12is received in the first accommodation chamber101of the protective shell10.

The body2includes a receiving seat20, a male plug21, a locking member22, a fixer23, a printed circuit board (PCB)24, a resilient piece25, and a covering member26. The receiving seat20has a second accommodation chamber201. The fixer23has two extension parts. The resilient piece25is elongated. The covering member26has a cross-cross groove261, wherein the male plug21, the locking member22, the fixer23, the PCB24, and the resilient piece25are accommodated in the second accommodation chamber201of the receiving seat20, and the covering member26is connected with the receiving seat20.

The conductive assembly3includes a first lid30, a second lid31, a defining sheet32, a PCB plug33, and a retractable wire34. The defining sheet32is configured to connect the PCB plug33with an end of the retractable wire34, and the first lid30and the second lid31are covered on the PCB plug and the defining sheet32, wherein the retractable wire34is connected with the PCB24of the body2, the PCB plug33is accommodated in the cross-cross groove261of the covering member26, the body2is received in the first accommodation chamber101of the protective shell10of the holder1, and the receiving seat20is connected with the decoration cap12.

The protective shell10, the decoration cap12, the receiving seat20, the fixer23, the PCB24, and the covering member26are circular. The protective shell10is made of silicone, and the connection disc11is a peripheral wall of any one of a backpack, a school bag, and a briefcase. The PCB plug33is a three-way PCB plug, and the retractable wire34has a length.

The protective shell10is configured to fix the USB cable on the backpack and to protect the body2.

The decoration cap12is configured to connect the receiving seat20with the holder1and to obtain aesthetic appearance.

The receiving seat20is configured to fix the fixer23and to obtain the aesthetic appearance.

The male plug21is electrically connected with a mobile power device.

The locking member22is configured to fix a USB charging cable.

The fixer23is configured to fix and protect the resilient piece25.

The PCB24is configured to transmit electric current and to stabilize voltage.

The resilient piece25is configured to control the length of the retractable wire34so as to expend or retract the retractable wire34.

The covering member26is configured to protect the USB cable.

The first lid30is configured to protect the PCB plug33.

The second lid31is configured to protect the PCB plug33.

The defining sheet32is configured to fix and protect the PCB plug33and the retractable wire34.

The PCB plug33is configured to connect a smart phone.

The retractable wire34is configured to transmit the electric current and to adjust the length of the PCB plug33.

The length of the retractable wire34is adjustable by using the resilient disc25.

The holder1is positioned on the backpack by ways of the connection disc11, the mobile power device is accommodated in the backpack, the decoration cap12is opened, and the USB male plug21of the body2is connected with the mobile power device. The protection cap103of the protective shell10is opened, and the PCB plug33is connected with the smart phone. In the meantime, the length of the retractable wire34is adjustable so as to expand or retract the PCB plug33. After retracting the retractable wire, and the protection cap103is covered on the protective shell10, thus charging power easily and protecting the PCB plug33.

While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention as well as other embodiments thereof may occur to those skilled in the art. The scope of the claims should not be limited by the preferred embodiments set forth in the examples, but should be given the broadest interpretation consistent with the description as a whole.