CN215868637U - Mobile hard disk cartridge - Google Patents
Mobile hard disk cartridge Download PDFInfo
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- CN215868637U CN215868637U CN202121395717.2U CN202121395717U CN215868637U CN 215868637 U CN215868637 U CN 215868637U CN 202121395717 U CN202121395717 U CN 202121395717U CN 215868637 U CN215868637 U CN 215868637U
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Abstract
The utility model discloses a mobile hard disk cartridge which comprises two USB interfaces, an interface management circuit, a power supply circuit, a data transmission circuit and a storage unit. The USB interface is used for connecting data transmission main equipment or an external power supply. The interface management circuit is used for carrying out USB data transmission protocol interaction with the data transmission main equipment through the USB interface so as to establish a USB data transmission channel between the data transmission main equipment and the data transmission circuit through the USB interface connected with the data transmission main equipment. The data transmission circuit is used for reading and writing data in the storage unit. The power supply circuit is used for obtaining power from the USB interface. When only one USB interface is connected, the interface management circuit controls the power supply circuit to obtain power from the connected USB interface. Because adopt two the same USB interfaces to be used for data transmission respectively and obtain the power to reduce the interface type of removing the hard disk cartridge, and then reduce the design degree of difficulty and manufacturing cost, and make the use of removing the hard disk cartridge more convenient, promote user experience.
Description
Technical Field
The utility model relates to the technical field of computer peripherals, in particular to a mobile hard disk cartridge.
Background
With the progress and development of modern society science and technology and the increasing popularization of digital products, the capacity demand of people on electronic products is increased day by day, and the purchase of electronic products also puts the memory capacity into an important consideration, but the capacity of electronic products is limited, and people often purchase an external portable mobile hard disk to expand the use demand of people.
The data transmission interface of the mobile hard disk generally adopts a USB interface, which is a data communication mode and a data bus, and is widely applied to electronic products such as mobile phones and PDAs. The USB interface is connected with a data transmission master device (USB HOST) and a data transmission SLAVE device (USB SLAVE) through USB data lines respectively in hardware, and the data connection can be realized only when the data transmission master device and the data transmission SLAVE device are connected. Generally, in order to ensure the stability of data transmission of the mobile hard disk, an external power interface needs to be added to the mobile hard disk, and the interface is also a USB interface. Because the data transmission of the mobile hard disk and the external power supply are both USB interfaces, in order to distinguish whether the interface is a charging type USB interface or a data transmission type USB interface, different identifications need to be set in the USB interfaces or two different USB interfaces need to be set, and the two modes increase the design difficulty and the production cost of the mobile hard disk cartridge.
Disclosure of Invention
The application provides a mobile hard disk box which is used for reducing the types of interfaces and data lines on the mobile hard disk box.
On one hand, the mobile hard disk cartridge comprises two USB interfaces, an interface management circuit, a power supply circuit, a data transmission circuit and a storage unit;
each USB interface is respectively connected with the interface management circuit, the power supply circuit and the data transmission circuit; the USB interface is used for connecting data transmission main equipment or an external power supply;
the interface management circuit is respectively connected with the power supply circuit and the data transmission circuit; the interface management circuit is used for carrying out USB data transmission protocol interaction with the data transmission main equipment through the USB interface so as to establish a data transmission channel between the data transmission main equipment and the data transmission circuit;
the interface management circuit is further configured to send a first power supply electrical signal to the power supply circuit when one of the USB interfaces is connected to the data transmission master device and another USB interface is idle, and the power supply circuit is further configured to respond to the first power supply electrical signal and obtain a power supply from the USB interface of the data transmission master device to supply power to the data transmission circuit, the interface management circuit, and the storage unit;
the power supply circuit is respectively connected with each USB interface, the data transmission circuit and the storage unit;
the storage unit is connected with the data transmission circuit; the data transmission circuit is used for reading and/or writing data to the storage unit.
In an embodiment, the interface management circuit is further configured to send a second power supply electrical signal to the power supply circuit when one of the USB interfaces is connected to the external power supply and another one of the USB interfaces is idle, and the power supply circuit is further configured to disconnect the USB interface connected to the external power supply in response to the second power supply electrical signal.
In an embodiment, the interface management circuit is further configured to send a third power supply electrical signal to the power supply circuit when one of the USB interfaces is connected to the external power supply and the other USB interface is connected to the data transmission host device, and the power supply circuit is further configured to respond to the third power supply electrical signal and obtain a power supply from the USB interface of the external power supply.
In an embodiment, when one of the USB interfaces is connected to the external power source, the other USB interface is connected to the data transmission host, and the data transmission host sends a charging request electrical signal to the interface management circuit, the interface management circuit is further configured to send a fourth power supply electrical signal to the power supply circuit in response to the charging request electrical signal, and the power supply circuit is further configured to obtain a power supply from the USB interface of the external power source and supply power to the USB interface connected to the data transmission host in response to the fourth power supply electrical signal.
In one embodiment, the USB interface is a TYPE-C male connector or a TYPE-C female connector.
In one embodiment, the mobile hard disk cartridge further comprises a TYPE-C data line for connecting the USB interface with the external power supply or the data transmission master device.
In one embodiment, the USB interfaces each include a first set of terminals; the first set of terminals includes power supply terminal VBUS1, power supply terminal VBUS2, power supply terminal CC1, data terminal D1+ and data terminal D1-;
the power supply end VBUS1 and the power supply end VBUS2 are connected with the power supply circuit, the power supply end CC1 is connected with the interface management circuit, and the data end D1+ and the data end D1-are connected with the data transmission circuit.
In one embodiment, the first set of terminals 11 further comprises a data communication terminal TX1+, a data communication terminal TX1-, a data communication terminal RX1+ and a data communication terminal RX 1-.
In an embodiment, the storage unit is one or more of a hard disk, a flash memory, an optical disk, or a memory card.
In an embodiment, the data transmission circuit includes an IDE interface, a SATA interface, or a PCIE interface.
The mobile hard disk cartridge according to the above embodiment includes two USB interfaces, an interface management circuit, a power supply circuit, a data transmission circuit, and a storage unit. The USB interface is used for connecting data transmission main equipment or an external power supply. The interface management circuit is used for carrying out USB data transmission protocol interaction with the data transmission main equipment through the USB interface so as to establish a USB data transmission channel between the data transmission main equipment and the data transmission circuit through the USB interface connected with the data transmission main equipment. The data transmission circuit is used for reading and writing data in the storage unit. The power supply circuit is used for obtaining power from the USB interface. When the USB interface is connected with only one data transmission main device, the interface management circuit is also used for controlling the power supply circuit to obtain power from the USB interface connected with the data transmission main device. Because adopt two the same USB interfaces to be used for data transmission respectively and obtain the power to reduce the interface type of removing the hard disk cartridge, and then reduce the design degree of difficulty and the manufacturing cost of removing the hard disk cartridge, and make the use of removing the hard disk cartridge more convenient, promote user experience.
Drawings
FIG. 1 is a schematic circuit diagram of a mobile hard disk drive in one implementation;
FIG. 2 is a diagram of a connection port of a USB interface.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
The mobile hard disk cartridge in the market at present comprises a data transmission interface and an external power supply interface, and the same interface is adopted for saving cost, however, the two interfaces need to be used in sequence, and if the interfaces are connected reversely, the hard disk cartridge or the data transmission main equipment can be burnt. In the embodiment of the application, the hard disk cartridge is provided with double USB interfaces, wherein one USB interface is connected with the main equipment through a USB data line for data transmission, and the other USB interface is connected with external power supply through the USB data line, so that the connection sequence does not need to be distinguished and sequenced.
Example one
Referring to fig. 1, a schematic circuit structure diagram of a mobile hard disk cartridge in an implementation includes a mobile hard disk cartridge 1, a data transmission host device 2, and an external power supply 3. The data transmission master device 2 comprises a third USB interface 21, and the data transmission master device 2 is connected with the mobile hard disk cartridge 1 through the third USB interface 21. The external power supply 3 comprises a fourth USB interface 31, and the external power supply 3 is connected with the mobile hard disk cartridge 1 through the fourth USB interface 31. The mobile hard disk cartridge 1 includes two USB interfaces, an interface management circuit 20, a power supply circuit 30, a data transmission circuit 40, and a storage unit 50. The two USB interfaces include a first USB interface 10 and a second USB interface 11. Each USB interface is connected to the interface management circuit 20, the power supply circuit 30 and the data transmission circuit 40, and the first USB interface 10 and the second USB interface 11 are used to connect to the data transmission host 2 and the external power supply 3, respectively. The interface management circuit 20 is connected to the power supply circuit 30 and the data transmission circuit 40, respectively. The interface management circuit 20 is configured to perform USB data transmission protocol interaction with the data transmission host apparatus 2 through the first USB interface 10 to establish a data transmission channel between the data transmission host apparatus 2 and the data transmission circuit 40. The interface management circuit 20 is further configured to send a first power supply electrical signal to the power supply circuit 30 when the first USB interface 10 is connected to the data transmission host device 2 and the second USB interface 11 is idle, and the power supply circuit 30 is further configured to respond to the first power supply electrical signal and obtain power from the USB interface 21 of the data transmission host device 2 to supply power to the data transmission circuit 40, the interface management circuit 20 and the storage unit 50. The power supply circuit 30 is connected to the first USB interface 10, the second USB interface 11, the data transmission circuit 40, and the storage unit 50, respectively. The memory unit 50 is connected to the data transmission circuit 40, and the data transmission circuit 40 is used for reading and/or writing data from/to the memory unit 50.
In one embodiment, the interface management circuit 20 is further configured to send a second power supply electrical signal to the power supply circuit 30 when the second USB interface 11 is connected to the external power source 3 and the first USB interface 10 is idle, and the power supply circuit 30 is further configured to disconnect the USB interface 31 of the external power source 3 in response to the second power supply electrical signal.
In an embodiment, the interface management circuit 20 is further configured to send a third power supply electrical signal to the power supply circuit 30 when the second USB interface 11 is connected to the external power source 3 and the first USB interface 10 is connected to the data transmission host device 2, and the power supply circuit 30 is further configured to obtain power from the second USB interface 11 connected to the external power source 3 in response to the third power supply electrical signal.
In an embodiment, when the second USB interface 11 is connected to the external power source 3, the first USB interface 10 is connected to the data transmission host 2, and the data transmission host 2 sends the charging request electrical signal to the interface management circuit 20, the interface management circuit 20 is further configured to send a fourth power supply electrical signal to the power supply circuit 30 in response to the charging request electrical signal, and the power supply circuit 30 is further configured to obtain a power supply from the second USB interface 11 connected to the external power source 3 and supply power to the first USB interface connected to the data transmission host 2 in response to the fourth power supply electrical signal, so as to supply power to the data transmission host 2 by the external power source 3.
In one embodiment, the first USB interface 10 and the second USB interface 11 are both TYPE-C male connector or both TYPE-C female connector. In one embodiment, the mobile hard disk drive case further comprises a TYPE-C data line for connecting the USB interface of the mobile hard disk drive case 1 with the external power supply 3 or the data transmission master device 2. In one embodiment, the memory unit 50 includes a flash memory. In one embodiment, the storage unit 50 is one or more of a hard disk, a flash memory, an optical disk, or a memory card. In one embodiment, the data transmission circuit 40 includes an IDE interface, a SATA interface, or a PCIE interface.
Referring to fig. 2, a schematic diagram of a connection port of a USB interface in an embodiment is shown, in which in the implementation of the present application, a first USB interface and a second USB interface of a mobile hard disk cartridge have the same structure. The first USB interface 10 comprises a first set of terminals 101 and a second set of terminals 102, the first set of terminals 101 comprising a power supply terminal VBUS1, a power supply terminal VBUS2, a power supply terminal CC1, a data terminal D1+ and a data terminal D1-. Power source terminal VBUS1 and power source terminal VBUS2 are connected to power supply circuit 30, power source terminal CC1 is connected to interface management circuit 20, and data terminal D1+ and data terminal D1-are connected to data transmission circuit 40. The second set of terminals 12 includes power terminal VBUS3, power terminal VBUS4, power terminal CC2, data terminal D2+, and data terminal D2-.
In one embodiment, the first set of terminals 101 further comprises a data communication terminal TX1+, a data communication terminal TX1-, a data communication terminal RX1+ and a data communication terminal RX 1-. The second set of terminals 102 further includes a data communication terminal TX2+, a data communication terminal TX2-, a data communication terminal RX2+ and a data communication terminal RX 2-.
In the embodiment of the application, the mobile hard disk box comprises two USB interfaces, an interface management circuit, a power supply circuit, a data transmission circuit and a storage unit. The USB interface is used for connecting data transmission main equipment or an external power supply. The interface management circuit is used for carrying out USB data transmission protocol interaction with the data transmission main equipment through the USB interface so as to establish a USB data transmission channel between the data transmission main equipment and the data transmission circuit through the USB interface connected with the data transmission main equipment. The data transmission circuit is used for reading and writing data in the storage unit. The power supply circuit is used for obtaining power from the USB interface. The two USB interfaces do not need to distinguish the connection sequence and the type of the connected equipment, and also support independent use. In one embodiment, the mobile hard disk drive box further supports an external power supply to supply power to the data transmission host device. Because two identical USB interfaces are respectively used for data transmission and power acquisition, the interface types of the mobile hard disk cartridge are reduced, and the design difficulty and the production cost of the mobile hard disk cartridge are further reduced. And because the USB interface does not need to distinguish the type of the connected equipment, the problem of wrong connection of the equipment is not needed to be worried about, and the safety of the product is further improved.
The present application has been described with reference to specific examples, which are provided only to aid understanding of the present application and are not intended to limit the present application. For a person skilled in the art to which the application pertains, several simple deductions, modifications or substitutions may be made according to the idea of the application.
Claims (10)
1. A mobile hard disk cartridge is characterized by comprising two USB interfaces, an interface management circuit, a power supply circuit, a data transmission circuit and a storage unit;
each USB interface is respectively connected with the interface management circuit, the power supply circuit and the data transmission circuit; the USB interface is used for connecting data transmission main equipment or an external power supply;
the interface management circuit is respectively connected with the power supply circuit and the data transmission circuit; the interface management circuit is used for carrying out USB data transmission protocol interaction with the data transmission main equipment through the USB interface so as to establish a data transmission channel between the data transmission main equipment and the data transmission circuit;
the interface management circuit is further configured to send a first power supply electrical signal to the power supply circuit when one of the USB interfaces is connected to the data transmission master device and another USB interface is idle, and the power supply circuit is further configured to respond to the first power supply electrical signal and obtain a power supply from the USB interface of the data transmission master device to supply power to the data transmission circuit, the interface management circuit, and the storage unit;
the power supply circuit is respectively connected with each USB interface, the data transmission circuit and the storage unit;
the storage unit is connected with the data transmission circuit; the data transmission circuit is used for reading and/or writing data to the storage unit.
2. The mobile hard disk cartridge as claimed in claim 1, wherein the interface management circuit is further configured to send a second power supply signal to the power supply circuit when one of the USB interfaces is connected to the external power source and the other USB interface is idle, and the power supply circuit is further configured to disconnect the USB interface connected to the external power source in response to the second power supply signal.
3. The mobile hard disk cartridge as claimed in claim 1, wherein the interface management circuit is further configured to send a third power supply signal to the power supply circuit when one of the USB interfaces is connected to the external power supply and the other USB interface is connected to the data transmission host device, and the power supply circuit is further configured to obtain power from the USB interface of the external power supply in response to the third power supply signal.
4. The mobile hard disk cartridge as claimed in claim 1, wherein when one of the USB interfaces is connected to the external power supply, the other USB interface is connected to the data transmission host, and the data transmission host sends a charging request electrical signal to the interface management circuit, the interface management circuit is further configured to send a fourth power supply electrical signal to the power supply circuit in response to the charging request electrical signal, and the power supply circuit is further configured to obtain power from the USB interface of the external power supply and supply power to the USB interface connected to the data transmission host in response to the fourth power supply electrical signal.
5. The mobile hard disk cartridge of any one of claims 1 to 4, wherein the USB interface is a TYPE-C male connector or a TYPE-C female connector.
6. The mobile hard disk cartridge as claimed in claim 5, further comprising a TYPE-C data line for connecting the USB interface with the external power supply or the data transmission master.
7. The mobile hard disk cartridge of any one of claims 1 to 4, wherein the USB interfaces each comprise a first set of terminals; the first set of terminals includes power supply terminal VBUS1, power supply terminal VBUS2, power supply terminal CC1, data terminal D1+ and data terminal D1-;
the power supply end VBUS1 and the power supply end VBUS2 are connected with the power supply circuit, the power supply end CC1 is connected with the interface management circuit, and the data end D1+ and the data end D1-are connected with the data transmission circuit.
8. The mobile hard disk cartridge as claimed in claim 7, wherein the first set of terminals 11 further comprises a data communication terminal TX1+, a data communication terminal TX1-, a data communication terminal RX1+ and a data communication terminal RX 1-.
9. The mobile hard disk cartridge as claimed in any one of claims 1 to 4, wherein the storage unit is one or more of a hard disk, a flash memory, an optical disk or a memory card.
10. The mobile hard disk cartridge as claimed in any of claims 1 to 4, wherein the data transmission circuit comprises an IDE interface, a SATA interface or a PCIE interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121395717.2U CN215868637U (en) | 2021-06-22 | 2021-06-22 | Mobile hard disk cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121395717.2U CN215868637U (en) | 2021-06-22 | 2021-06-22 | Mobile hard disk cartridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215868637U true CN215868637U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121395717.2U Active CN215868637U (en) | 2021-06-22 | 2021-06-22 | Mobile hard disk cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215868637U (en) |
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2021
- 2021-06-22 CN CN202121395717.2U patent/CN215868637U/en active Active
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