CN210836104U

CN210836104U - TF card reader supporting charging function

Info

Publication number: CN210836104U
Application number: CN201922237176.XU
Authority: CN
Inventors: 汪邦涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-06-23
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses a TF card reader supporting charging function, which is characterized in that a TF card data processing circuit module is arranged on a main circuit board and is connected with a TF card slot and a second electric connector, a first electric connector inputs a first CC protocol to a PD protocol processing module, the first CC protocol only provides charging, a power management switching module is arranged on the main circuit board, one end of the power management switching module is connected with the first electric connector, the other end is connected with a PD protocol processing module, the TF card data processing circuit module and the second electric connector, one end of the PD protocol processing module is connected with the first electric connector to form a second CC protocol, the other end is connected with the second electric connector, the second CC protocol provides charging and reading TF card data, the first CC protocol enters the PD protocol processing module to be processed to form a second CC protocol, therefore, the TF card reader directly obtains the power supply from the charging interface, and data reading can be realized by only consuming the electric energy of a mobile phone or a computer.

Description

TF card reader supporting charging function

[ technical field ] A method for producing a semiconductor device

The utility model relates to a TF card reader indicates a TF card reader who supports function of charging especially.

[ background of the invention ]

At present, a traditional TF card reader in the market can only transmit data and cannot be used for charging, and when the TF card reader is connected to equipment in a data transmission process, data transmission is achieved, and the equipment is a mobile phone or a computer, so that electric energy of the mobile phone or the computer can be consumed. In addition, with the development of light and thin mobile phones and computers, the space and the position for setting the interface are less and less, and the TF card reader occupies the interface of the mobile phone and the computer in the process of data transmission, so that certain limitation and obstacle are caused to the function expansion of the mobile phone and the computer.

At present, a USB TYPE-C interface is generally adopted by smart phones and computer equipment on the market as an interface for charging and transmitting data, the USB TYPE-C interface conforming to a PD protocol supports multiple functions, such as data transmission and charging, of course, a plurality of products which expand a single USB TYPE-C interface of the equipment into multiple functions, such as functions of expanding USB2.0 or USB3.0, and the like, and functions of an SD card and a TF card are also on the market at present, although the design makes the existing docking station product have multiple interfaces and functions, the size is large, the docking station product is not convenient to carry and is not convenient to hold by hands; under the condition that the interface function is many, the demand of the electric energy supplied by the smart phone and the computer equipment is more, so the energy consumption is larger, the use effect can be ensured only by a specially suitable adapter power supply, and the development trend of high efficiency and low cost in the industry is not facilitated.

Therefore, there is a need to design a good TF card reader supporting the charging function to overcome the above problems.

[ Utility model ] content

To the problem that the background art faces, the utility model aims to provide a realize through setting up TF card data processing circuit module, power management switching module, PD agreement processing module that the TF card reader can directly obtain the power from the interface that charges, rather than can only consume the electric energy of cell-phone or computer and realize the TF card reader of the support function of charging of data reading function.

In order to achieve the above object, the utility model adopts the following technical means:

a TF card reader supporting a charging function comprises a shell, wherein a containing cavity is formed in the shell, a main circuit board is arranged in the containing cavity, a TF card slot, a first electric connector and a second electric connector are arranged on one side of the main circuit board, the TF card slot, the first electric connector and the second electric connector expose out of the containing cavity, a TF card data processing circuit module is arranged on the main circuit board and electrically connected with the TF card slot and the second electric connector, a first CC protocol is input into a PD protocol processing module by the first electric connector, the first CC protocol only provides charging and cannot read TF card data, a power management switching module is arranged on the main circuit board, one end of the power management switching module is electrically connected with the first electric connector, and the other end of the power management switching module is electrically connected with the PD protocol processing module, The TF card data processing circuit module and the second electric connector, one end of the PD protocol processing module is electrically connected with the first electric connector to form a second CC protocol, the other end of the PD protocol processing module is electrically connected with the second electric connector, the second CC protocol provides charging and reading TF card data, the first CC protocol enters the PD protocol processing module to form the second CC protocol after processing, and the second CC protocol enters the second electric connector.

Further, first electric connector is USBTYPE-C socket connector or Micro USB socket connector, USBTYPE-C socket connector or Micro USB socket connector is the interface that charges, and an electric connection power supply equipment, the second electric connector is USBTYPE-C plug connector, USBTYPE-C plug connector is used for electric connection cell-phone or computer electronic equipment.

Further, the first electric connector transmits a power supply to enter the power supply management switching module, the power supply management switching module transmits a power supply TF VCC to the TF card data processing circuit module, and the power supply management switching module transmits the power supply VCC to the PD protocol processing module.

Furthermore, the second electrical connector is used for being connected to a mobile phone or a computer electronic device, the power management switching module transmits a power supply Vbus to the second electrical connector, and the TF card data processing circuit module is in signal communication with the second electrical connector through a USB.

Further, the charging device access is identified through AD sampling processing of the charging voltage signal of the first electric connector or a CC pin of the first electric connector.

Further, the TF card data processing circuit module converts the SDIO interface of the TF card into a USB signal, and communicates with the device of the second electrical connector through a USB.

Further, the first electric connector transmits power to the PD protocol processing module, when the second electric connector is used to connect to a mobile phone or a computer electronic device, the second CC protocol is electrically connected to the second electric connector, the mobile phone or the computer electronic device is in a "Host" and "Sink" operating mode, and when the mobile phone or the computer electronic device obtains power from the second electric connector, the mobile phone or the computer electronic device performs USB communication with the TF card data processing circuit module through the second electric connector.

Furthermore, the first electric connector is connected with a power supply and disconnected with the power supply, the mobile phone or the computer electronic equipment automatically switches working modes, when the first electric connector is connected with the power supply, the mobile phone or the computer electronic equipment enters into charged work and simultaneously works with a TF card in a communication mode through a USB, and the TF card is inserted into the TF card slot; when the first electric connector is disconnected from the power supply, the mobile phone or the computer electronic equipment stops being charged to work, and the mobile phone or the computer electronic equipment continuously communicates with the TF card through the USB.

Compared with the prior art, the utility model discloses following beneficial effect has:

in the TF card reader supporting the charging function, the TF card data processing circuit module is arranged on the main circuit board and is electrically connected with the TF card slot and the second electric connector, the first electric connector inputs a first CC protocol to a PD protocol processing module, the first CC protocol only provides charging and cannot read TF card data, the power management switching module is arranged on the main circuit board, one end of the power management switching module is electrically connected with the first electric connector, the other end of the power management switching module is electrically connected with the PD protocol processing module, the TF card data processing circuit module and the second electric connector, and the PD card data processing circuit module is electrically connected with the second electric connector

One end of the protocol processing module is electrically connected with the first electric connector to form a second CC protocol, the other end of the protocol processing module is electrically connected with the second electric connector, the second CC protocol provides charging and reading TF card data, the first CC protocol enters the PD protocol processing module to be processed to form the second CC protocol, and the second CC protocol enters the second electric connector, so that the TF card reader can directly obtain a power supply from a charging interface, and the TF card reader supporting the charging function and only consuming the electric energy of a mobile phone or a computer can realize the data reading function.

In addition, due to the design mode, the power supply of the charging interface can also charge the mobile phone or the computer, and the TF card reader does not additionally occupy the interfaces of the mobile phone and the computer in the data transmission process while charging, so that the TF card reader is small in size, convenient to carry and hand-held, can ensure the use effect without a special and appropriate adapter power supply, and is favorable for the high-efficiency and low-cost development trend of the industry.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of a TF card reader supporting a charging function according to the present invention;

fig. 2 is a frame diagram of the TF card reader supporting the charging function according to the present invention.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

upper shell 12 of housing cavity 11 of housing 1

The first side 21 of the main circuit board 2 of the lower case 13

Second side 22, third side 23, fourth side 24

TF card slot 3, first electrical connector 4, second electrical connector 5

TF card data processing circuit module 6 power management switching module 7 PD protocol processing module 8

[ detailed description ] embodiments

For better understanding of the objects, structures, features, and functions of the present invention, reference should now be made to the drawings and detailed description of the invention.

Referring to fig. 1 and 2, a TF card reader supporting a charging function may have one end connected to an external power supply (not shown, the same below), and the other end connected to an electronic device (not shown, the same below) such as a mobile phone or a computer, and may provide a power supply for data reading of the TF card (not shown, the same below) through the external power supply, without providing a power supply for data reading of the TF card by the electronic device such as the mobile phone or the computer, and may also charge the electronic device such as the mobile phone or the computer through the external power supply, and may also achieve data reading and power supply of the TF card under the condition that the interface is not increased and the electronic device such as the mobile phone or the computer does not consume power.

Referring to fig. 1 and 2, the TF card reader supporting a charging function includes a housing 1 having a receiving cavity 11, a main circuit board 2 disposed in the receiving cavity 11, a TF card slot 3 disposed on one side of the main circuit board 2, a first electrical connector 4 and a second electrical connector 5, the TF card slot 3, the first electrical connector 4 and the second electrical connector 5 being exposed from the receiving cavity 11 outside the housing 1, a TF card data processing circuit module 6 disposed on the main circuit board 2 and electrically connecting the TF card slot 3 and the second electrical connector 5, the first electrical connector 4 inputting a first CC protocol to a PD protocol processing module 8, the first CC protocol only providing charging and not reading TF card data, a power management switching module 7 disposed on the main circuit board 2, one end of the power management switching module 7 being electrically connected to the first electrical connector 4, the other end electric connection the PD protocol processing module 8, TF card data processing circuit module 6 and second electric connector 5, PD protocol processing module 8 one end electric connection first electric connector 4 forms a second CC agreement, other end electric connection second electric connector 5, the second CC agreement provides to charge and reads TF card data, promptly the second CC agreement can charge, can also read TF card data, first CC agreement gets into form after PD protocol processing module 8 handles the second CC agreement, the second CC agreement gets into the second electric connector 5.

Referring to fig. 1 and 2, the main circuit board 2 has a first side 21 and a second side 22 disposed opposite to each other, and a third side 23 and a fourth side 24 disposed opposite to each other, the first electrical connector 4 and the TF card slot 3 are respectively disposed on the first side 21 and the second side 22, and the second electrical connector 5 is disposed on the third side 23, so that the distribution design does not increase the volume of the original TF card reader, the function expansion can be realized, the circuit is preferably arranged, the volume of the whole product is small and portable, the handheld operation is convenient, and the design is simple. The shell 1 has an epitheca 12 and a inferior valve 13 of mutual lock joint, epitheca 12 with inferior valve 13 corresponds first side 21 the second side 22 with fourth side 24 all is equipped with buckle structure, conveniently overhauls inside structure, simultaneously, can the buckle stable.

Referring to fig. 1 and 2, the first electrical connector 4 is a TYPE-C socket connector or a Micro USB socket connector, the TYPE-C socket connector or the Micro USB socket connector is a charging interface, and one of the TYPE-C socket connector and the Micro USB socket connector is electrically connected to a power supply device, the second electrical connector 5 is a TYPE-C plug connector, and the USB TYPE-C plug connector is used for electrically connecting to a mobile phone or a computer electronic device. The charging port of the Micro USB socket connector is free of a standard protocol, AD sampling processing is carried out on a charging voltage signal of the first electric connector 4 or a CC pin of the first electric connector 4, charging equipment access is recognized, an analog signal is converted into a digital signal, Micro USB charging access recognition is generated, the USB TYPE-C socket connector is in a PD protocol standard, the CC pin is specially used for recognizing charging identity, but a USBTYPE-C socket connector charging wire may also have a non-standard product, namely the CC pin is not specially used for recognizing charging identity, AD sampling processing needs to be carried out on the charging voltage signal, and the analog signal is converted into the digital signal.

Referring to fig. 1 and fig. 2, the first electrical connector 4 transmits a power to the power management switching module 7, the power management switching module 7 transmits a power TF VCC to the TF card data processing circuit module 6, and the power management switching module 7 transmits the power VCC to the PD protocol processing module 8. The second electric connector 5 is used for being connected to a mobile phone or computer electronic equipment, the power management switching module 7 transmits a power supply Vbus to the second electric connector 5, and the TF card data processing circuit module 6 is in signal communication with the second electric connector 5 through a USB. The power management switching module 7 is internally designed with power isolation and switching, when a power supply is supplied, the power supply is distributed to the PD protocol processing module 8 for VCC power supply and also distributed to the TF card data processing circuit module 6 for TF VCC power supply, and when the second electric connector 5 of the TF card reader is connected to an electronic device such as a mobile phone or a computer, the power supply can be supplied to the electronic device such as the mobile phone or the computer. When no power is supplied to the power management switching module 7 through the first electrical connector 4, the electronic device such as a mobile phone or a computer reversely supplies power to the power management switching module 7, and then the power is distributed to the PD protocol processing module 8 and the TF card data processing circuit module 6 through the power management switching module 7.

Referring to fig. 1 and fig. 2, the TF card data processing circuit module 6 converts the SDIO interface of the TF card into a USB signal, and communicates with the device of the second electrical connector 5 through USB, so that the SDIO interface of the TF card can communicate with the USB interface of the USB TYPE-C of the electronic device such as a mobile phone or a computer. The first electric connector 4 transmits power to the PD protocol processing module 8, that is, when there is a charging power, the second electric connector 5 is used to connect to a mobile phone or a computer electronic device, the second CC protocol is electrically connected to the second electric connector 5, the mobile phone or the computer electronic device is in a "Host" and "Sink" operating mode, the power enters the first electric connector 4 and is a source, "Sink" is a passive receiving end, the mobile phone or the computer electronic device can only rely on the power of the mobile phone or the computer electronic device when obtaining power from the second electric connector 5, that is, when there is no charging power, the mobile phone or the computer electronic device performs USB communication with the TF card data processing circuit module 6 through the second electric connector 5, and the mobile phone or the computer electronic device uses the TF card reader as a client. The first electric connector 4 is connected with a power supply and disconnected with the power supply, the mobile phone or the computer electronic equipment intelligently and automatically switches working modes, flexibility and convenience are achieved, when the first electric connector 4 is connected with the power supply, the mobile phone or the computer electronic equipment enters charged working and simultaneously works with the TF card in a communication mode through a USB, and the TF card is inserted into the TF card slot 3; when the first electric connector 4 is powered off, the mobile phone or the computer electronic equipment stops being charged to work, and the mobile phone or the computer electronic equipment continuously communicates with the TF card through the USB.

Referring to fig. 1 and fig. 2, in the TF card reader supporting the charging function, by providing a TF card data processing circuit module 6 disposed on a main circuit board 2 and electrically connecting the TF card slot 3 and the second electrical connector 5, the first electrical connector 4 inputs a first CC protocol to the PD protocol processing module 8, the first CC protocol only provides charging and cannot read TF card data, a power management switching module 7 is disposed on the main circuit board 2, one end of the power management switching module 7 is electrically connected to the first electrical connector 4, the other end is electrically connected to the PD protocol processing module 8, the TF card data processing circuit module 6 and the second electrical connector 5, one end of the PD protocol processing module 8 is electrically connected to the first electrical connector 4 to form a second CC protocol, and the other end is electrically connected to the second electrical connector 5, the second CC protocol provides charging and reading TF card data, the first CC protocol enters the PD protocol processing module 8 for processing to form the second CC protocol, the second CC protocol enters the second electric connector 5, so that the TF card reader can directly obtain a power supply from a charging interface instead of the TF card reader supporting the charging function only consuming the electric energy of a mobile phone or a computer, and certainly, if no power supply can be obtained from the charging interface under special conditions, the data reading function can be realized through the electric energy of the mobile phone or the computer, so that double insurance is realized, and the increase of the use environment range of the TF card reader is ensured.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all the equivalent technical changes applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. A TF card reader supporting a charging function, comprising: a housing having a receiving cavity, a main circuit board disposed in the receiving cavity, a TF card slot, a first electrical connector and a second electrical connector disposed on one side of the main circuit board, wherein the TF card slot, the first electrical connector and the second electrical connector are exposed from the receiving cavity, a TF card data processing circuit module is disposed on the main circuit board and electrically connected to the TF card slot and the second electrical connector, the first electrical connector inputs a first CC protocol to a PD protocol processing module, the first CC protocol only provides charging and cannot read TF card data, a power management switching module is disposed on the main circuit board, one end of the power management switching module is electrically connected to the first electrical connector, and the other end is electrically connected to the PD protocol processing module, the TF card data processing circuit module and the second electrical connector, one end of the PD protocol processing module is electrically connected with the first electric connector to form a second CC protocol, the other end of the PD protocol processing module is electrically connected with the second electric connector, the second CC protocol provides charging and reading TF card data, the first CC protocol enters the PD protocol processing module to be processed and then forms a second CC protocol, and the second CC protocol enters the second electric connector.

2. A TF card reader supporting a charging function according to claim 1 wherein: first electric connector is USBTYPE-C socket connector or Micro USB socket connector, USBTYPE-C socket connector or the Micro USB socket connector is for the interface that charges, and an electric connection power supply equipment, the second electric connector is USBTYPE-C plug connector, USBTYPE-C plug connector is used for electric connection cell-phone or computer electronic equipment.

3. A TF card reader supporting a charging function according to claim 1 wherein: the first electric connector transmits a power supply to enter the power supply management switching module, the power supply management switching module transmits a power supply TF VCC to the TF card data processing circuit module, and the power supply management switching module transmits the power supply VCC to the PD protocol processing module.

4. A TF card reader supporting a charging function according to claim 1 wherein: the second electric connector is used for being connected to a mobile phone or computer electronic equipment, the power management switching module transmits a power supply Vbus to the second electric connector, and the TF card data processing circuit module is in signal communication with the second electric connector through a USB.

5. A TF card reader supporting a charging function according to claim 1 wherein: and identifying the access of the charging equipment by performing AD sampling processing on the charging voltage signal of the first electric connector or a CC pin of the first electric connector.

6. A TF card reader supporting a charging function according to claim 1 wherein: and the TF card data processing circuit module converts the SDIO interface of the TF card into a USB signal and communicates with the equipment of the second electric connector through a USB.

7. A TF card reader supporting a charging function according to claim 1 wherein: the first electric connector transmits power to the PD protocol processing module, when the second electric connector is used for being connected to a mobile phone or computer electronic equipment, the second CC protocol is electrically connected with the second electric connector, the mobile phone or computer electronic equipment is in a 'Host' and 'Sink' working mode, and when the mobile phone or computer electronic equipment obtains the power from the second electric connector, the mobile phone or computer electronic equipment carries out USB communication with the TF card data processing circuit module through the second electric connector.

8. A TF card reader supporting a charging function according to claim 7 wherein: the first electric connector is connected with a power supply and disconnected with the power supply, the mobile phone or the computer electronic equipment automatically switches working modes, when the first electric connector is connected with the power supply, the mobile phone or the computer electronic equipment enters into a charged state to work, and simultaneously works with a TF card in a communication mode through a USB, and the TF card is inserted into the TF card slot; when the first electric connector is disconnected from the power supply, the mobile phone or the computer electronic equipment stops being charged to work, and the mobile phone or the computer electronic equipment continuously communicates with the TF card through the USB.