CN214673348U

CN214673348U - Interface conversion data line for quick charging

Info

Publication number: CN214673348U
Application number: CN202120393119.5U
Authority: CN
Inventors: 孙帅
Original assignee: Shenzhen Kusai Communication Technology Co ltd
Current assignee: Shenzhen Kusai Communication Technology Co ltd
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-11-09
Anticipated expiration: 2031-02-23

Abstract

The utility model discloses an interface conversion data line for quick charging, which is used for connecting a charging head and a mobile terminal, and comprises a Type-A interface, a cable, a resistor and a Type-C interface, wherein the Type-A interface is connected with the charging interface of the charging head, and the Type-C interface is connected with the charging interface of the mobile terminal; the CC1 foot of Type-C interface is connected to the CC1 foot of Type-A interface, and the VBUS foot of Type-A interface is connected the VBUS foot of Type-C interface and the one end of resistance, and the CC2 foot of Type-C interface is connected to the other end of resistance. Make Type-A interface and the Type-C interface connection who goes out a pin more through resistance, realize Type-A to Type-C's conversion, the head that charges of Type-A Type just can charge to mobile terminal, has solved current Type-A interface and can not fill the problem that fills soon to Type-C interface through the PD.

Description

Interface conversion data line for quick charging

Technical Field

The utility model relates to the field of electronic technology, in particular to an interface conversion data line for filling soon.

Background

Currently, USB interfaces mainly have four interface types: the USB interface is a Type-A interface, is the most common USB interface, and is mainly used for devices such as computers, chargers, mice, keyboards, USB flash disks and the like; secondly, a Type-B interface is mainly used for equipment such as a printer; third, the Micro-B interface, namely the interface of the mobile phone charger; and fourthly, a Type-C interface, namely an interface of a mobile phone charger, supports large current and large voltage charging and supports front and back blind plugging, a C-Type Standard Cable matched with the Type-C interface is a CC (configuration channel) line, and a communication line of a PD (Power delivery) protocol, and only one line of the CC line can carry out PD protocol communication.

The PD fills soon that uses and fills data line soon comprises CC line and two Type-C interfaces (female head of a public head), but, the cell-phone charges most uses the Type-C interface, and the first most of charging is the Type-A interface. If the head that charges is Type-C interface, can only charge with the CC line, the head that charges for Type-A interface has brought the restriction like this.

There is therefore a need for improvements in the prior art.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art's weak point, the utility model aims to provide an interface conversion data line for filling soon to solve the problem that current Type-A interface can not charge to Type-C interface.

In order to achieve the purpose, the utility model adopts the following technical proposal:

an interface conversion data line for quick charging is used for connecting a charging connector and a mobile terminal and comprises a Type-A interface, a cable, a resistor and a Type-C interface, wherein the Type-A interface is connected with the charging interface of the charging connector, and the Type-C interface is connected with the charging interface of the mobile terminal; the CC1 foot of Type-C interface is connected to the CC1 foot of Type-A interface, and the VBUS foot of Type-A interface is connected the VBUS foot of Type-C interface and the one end of resistance, and the CC2 foot of Type-C interface is connected to the other end of resistance.

In the interface conversion data line for quick charging, the resistance value of the resistor is 56 Komega.

The interface conversion data line for filling soon in, the GND foot of Type-C interface is connected to the GND foot of Type-A interface, the DM/D-foot of Type-C interface is connected to the D-foot of Type-A interface, the DP/D + foot of Type-C interface is connected to the D + foot of Type-A interface.

Compared with the prior art, the interface conversion data line for quick charging provided by the utility model connects the charging head and the mobile terminal, and comprises a Type-A interface, a cable, a resistor and a Type-C interface, wherein the Type-A interface is connected with the charging interface of the charging head, and the Type-C interface is connected with the charging interface of the mobile terminal; the CC1 foot of Type-C interface is connected to the CC1 foot of Type-A interface, and the VBUS foot of Type-A interface is connected the VBUS foot of Type-C interface and the one end of resistance, and the CC2 foot of Type-C interface is connected to the other end of resistance. The resistance is a pull-up resistance, the CC2 foot of Type-C interface is connected to the VBUS foot of Type-A interface through the pull-up resistance that increases, make Type-A interface can with the Type-C interface connection who goes out a pin more, realize Type-A to Type-C's conversion, adopt the charging head of the interface that charges of Type-A Type just can charge to mobile terminal like this, realize different interface Type's compatibility, thereby solved current Type-A interface and can not fill the problem that carries out the fast charge to Type-C interface through the PD soon.

Drawings

Fig. 1 is a block diagram of an interface conversion data line for fast charging provided by the present invention.

Fig. 2 is a schematic diagram of an interface conversion data line for fast charging provided by the present invention.

Fig. 3 is the utility model provides a mobile terminal's pin schematic diagram of the interface that charges.

Detailed Description

The utility model provides an interface conversion data line for filling soon can realize the function of filling soon of Type-A interface to Type-C interface. In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the following description of the present invention will refer to the accompanying drawings and illustrate embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Please refer to fig. 1 and fig. 2 simultaneously, the utility model provides an interface conversion data line 10 for fast charging connects charging head and mobile terminal, the interface conversion data line 10 includes Type-a interface 110, cable 120, resistance R and Type-C interface 130, the Type-a interface 110 (as public head, also called Type-a public interface) connects charging interface 20 (namely Type-a female interface) of charging head, Type-C interface 130 (as public head, also called Type-C public interface) connects charging interface 30 of mobile terminal; the CC1 pin (the first communication pin) of the Type-A interface 110 is connected with the CC1 pin of the Type-C interface 130, the VBUS pin (the power pin) of the Type-A interface 110 is connected with the VBUS pin of the Type-C interface 130 and one end of a resistor R, and the other end of the resistor R is connected with the CC2 pin (the second communication pin) of the Type-C interface 130. Whether charging is carried out is detected through whether voltage exists on a pin CC1 and a pin CC2 of the Type-C interface 130, if yes, a quick charging mode is entered, and charging is started.

The Type-a interface 110 is inserted into the charging interface 20 of the charging connector, and 5 PIN PINs of the two inserted interfaces are correspondingly connected; similarly, the Type-C interface 130 is inserted into the charging interface 30 of the mobile terminal, and the 6 PIN PINs of the two inserted interfaces are correspondingly connected; this is prior art and will not be described in detail here. In the embodiment, the resistance R (namely, the pull-up resistance) is added in the interface conversion data line 10, so that the Type-A interface 110 with 5 pins can be connected with the Type-C interface 130 with 6 pins, and the conversion from Type-A to Type-C is realized, therefore, the charging head of the charging interface 20 with Type-A can charge the mobile terminal (the charging interface 30 with Type-C) and realize the compatibility of different interface types, and the use of the mobile terminal is not influenced by the influence of the interface types.

In this embodiment, the resistor R is a pull-up resistor, and is disposed on an internal circuit board of the Type-C interface 130, and the resistance value is preferably 56K Ω, so that the compatibility is better. In specific implementation, the resistance value can be modified according to the compatibility requirements of different mobile terminals.

The GND pin (ground pin) of the Type-A interface 110 is connected with the GND pin of the Type-C interface 130 through a ground wire 121 in the cable, the D pin (data negative pin) of the Type-A interface 110 is connected with the DM/D pin of the Type-C interface 130 through a data negative signal line 122 in the cable, the D + pin (data positive pin) of the Type-A interface 110 is connected with the DP/D + pin of the Type-C interface 130 through a data positive signal line 123 in the cable, the CC1 pin of the Type-A interface 110 is connected with the CC1 pin of the Type-C interface 130 through a CC line 124 in the cable (Current Source/Pull-Down-CC Model), the VBUS pin of the Type-A interface 110 is connected with the VBUS pin of the Type-C interface 130 through a first power line 126 in the cable, one end of the resistor R is connected with the VBUS pin of the Type-A interface 110 through a second power line 125, the other end of the resistor R is connected to pin CC2 of the Type-C interface 130 via another second power line.

Referring to fig. 3, the charging interface 30 of the mobile terminal is provided with 4 ground pins GND (all named as GND) connected to each other, 2 data negative pins D-connected to each other, 2 data positive pins D + connected to each other, and 4 power pins VBUS (all named as VBUS) connected to each other.

Taking the mobile terminal as a mobile phone as an example, when the charging head is connected to the mobile phone through the interface conversion data line 10 for fast charging, the mobile phone determines that the mobile phone has entered an RP (pull-up) state by obtaining a voltage at a pin CC1 or a pin CC2, and then the mobile phone enters a Debug access. During charging, a quick charging algorithm inside the mobile phone detects the line resistance (from a charging head to an interface conversion data line to an internal charging chip to a battery) to calculate the maximum charging current so as to obtain the charging power. The mobile phone can also regularly carry out PPS (programmable Power supply) communication with the charging head through a CC1 pin, acquire the temperature of the charging head, simultaneously acquire the battery temperature of the mobile phone, adjust the charging Power according to the temperature of the charging head and the battery temperature, and carry out overheating protection.

To sum up, the utility model provides an interface conversion data line for filling soon realizes that the PD of A-C (Type-A interface to Type-C interface promptly) fills the function soon, has solved the restriction of filling soon that can only C-C (Type-C interface to Type-C interface promptly), realizes the compatibility of different interface types, no longer is subject to the influence of interface Type and influences user's the use of charging.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims

1. An interface conversion data line for quick charging is connected with a charging head and a mobile terminal and is characterized by comprising a Type-A interface, a cable, a resistor and a Type-C interface, wherein the Type-A interface is connected with the charging interface of the charging head, and the Type-C interface is connected with the charging interface of the mobile terminal; the CC1 pin of the Type-A interface is connected with the CC1 pin of the Type-C interface, the VBUS pin of the Type-A interface is connected with the VBUS pin of the Type-C interface and one end of a resistor, and the other end of the resistor is connected with the CC2 pin of the Type-C interface;

the Type-A interfaces of the 5 pins are connected with the Type-C interfaces of the 6 pins, so that the conversion from Type-A to Type-C is realized; the mobile terminal detects whether charging is carried out through whether voltage exists on a pin CC1 or a pin CC2 of the Type-C interface, if so, the mobile terminal enters a quick charging mode to start charging.

2. The interface conversion data line for the fast charging according to claim 1, wherein the resistance of the resistor is 56K Ω.

3. The interface conversion data line for fast charging according to claim 1, wherein the GND pin of the Type-A interface is connected with the GND pin of the Type-C interface, the D-pin of the Type-A interface is connected with the DM/D-pin of the Type-C interface, and the D + pin of the Type-A interface is connected with the DP/D + pin of the Type-C interface.