CN218447234U - Mobile hard disk cartridge with write protection function - Google Patents
Mobile hard disk cartridge with write protection function Download PDFInfo
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- CN218447234U CN218447234U CN202222486584.0U CN202222486584U CN218447234U CN 218447234 U CN218447234 U CN 218447234U CN 202222486584 U CN202222486584 U CN 202222486584U CN 218447234 U CN218447234 U CN 218447234U
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- hard disk
- mobile hard
- power supply
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Abstract
The utility model discloses a mobile hard disk cartridge with write-protect function, which comprises a shell and a circuit board arranged in the shell, wherein the circuit board is provided with a USB interface circuit, a write-protect circuit, a protocol conversion circuit, a mobile hard disk access circuit, a master control power supply conversion circuit and a mobile hard disk power supply conversion circuit; through setting up USB interface circuit, the protocol conversion circuit, the portable hard drive access circuit, master control power supply converting circuit and portable hard drive power supply converting circuit, can realize the normal function of portable hard drive box, and simultaneously, through setting up write protection circuit, can change protocol conversion circuit's mode of operation, make portable hard drive box can only duplicate the data of downloading on the portable hard drive, can not delete and modify the data on the portable hard drive, effectively prevent the damage and the falsifying of the data on the portable hard drive, the factor of safety of portable hard drive box has been improved.
Description
Technical Field
The utility model relates to a mobile hard disk cartridge technical field especially relates to a mobile hard disk cartridge with take write protect function.
Background
With the rapid popularization of computers, a large amount of data needs to be stored in the ordinary use of computers, and a mobile hard disk is widely applied as a portable and high-capacity storage device under the application prospect, and the mobile hard disk can be connected with the computer only by being placed in a mobile hard disk box.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a remove hard disk cartridge with take write protect function can solve the defect that the factor of safety that current remove hard disk cartridge exists is low.
The technical scheme of the utility model is realized like this:
the utility model provides a mobile hard disk cartridge with area write protect function, includes the casing and is located circuit board in the casing, be provided with USB interface circuit, write protect circuit, agreement converting circuit, mobile hard disk access circuit, master control power supply converting circuit and mobile hard disk power supply converting circuit on the circuit board, USB interface circuit respectively with write protect circuit, agreement converting circuit, mobile hard disk access circuit, master control power supply converting circuit and mobile hard disk power supply converting circuit, master control power supply converting circuit with agreement converting circuit connects, agreement converting circuit with mobile hard disk power supply converting circuit connects, mobile hard disk power supply converting circuit with mobile hard disk access circuit connects, write protect circuit with agreement converting circuit connects.
As a further alternative of the mobile hard disk cartridge with write protection function, the master control power supply conversion circuit includes a first working power supply circuit and a second working power supply circuit, and the first working power supply circuit and the second working power supply circuit are respectively connected with the protocol conversion circuit.
As a further alternative to the mobile hard disk cartridge with write protect function, the USB interface circuit includes a USB3-TYPE-C chip and its peripheral circuits.
As a further alternative of the mobile hard disk cartridge with the write protection function, the write protection circuit comprises a GA8P703-SOP8 chip and peripheral circuits thereof.
As a further alternative of the mobile hard disk cartridge with write protection function, the protocol conversion circuit comprises a JMS583 chip and its peripheral circuits.
As a further alternative of the mobile hard disk box with the write protection function, the mobile hard disk access circuit M.2-MKEY chip and the peripheral circuit thereof.
As a further alternative to the mobile hard disk cartridge having the write protect function, the first operational power supply circuit includes an FP6381A chip and its peripheral circuits.
As a further alternative of the mobile hard disk cartridge with write protection function, the second operational power supply circuit includes a P25Q40H chip and its peripheral circuits.
As a further alternative of the mobile hard disk drive with the write protection function, the mobile hard disk drive power conversion circuit comprises a CA8134A chip and peripheral circuits thereof.
The utility model has the advantages that: through setting up USB interface circuit, the protocol conversion circuit, the portable hard drive access circuit, master control power supply converting circuit and portable hard drive power supply converting circuit, can realize the normal function of portable hard drive box, and simultaneously, through setting up write protection circuit, can change protocol conversion circuit's mode of operation, make portable hard drive box can only duplicate the data of downloading on the portable hard drive, can not delete and modify the data on the portable hard drive, effectively prevent the damage and the falsifying of the data on the portable hard drive, the factor of safety of portable hard drive box has been improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram illustrating a circuit board in a mobile hard disk drive with write protection according to the present invention;
FIG. 2 is a schematic circuit diagram of a USB interface circuit in a mobile hard disk drive with write protect according to the present invention;
FIG. 3 is a schematic circuit diagram of a write protect circuit in a mobile hard disk drive with write protect function according to the present invention;
fig. 4 is a schematic circuit diagram of a protocol conversion circuit in a mobile hard disk drive with write protection according to the present invention;
fig. 5 is a schematic circuit diagram of a mobile hard disk access circuit in a mobile hard disk cartridge with write protection function according to the present invention;
FIG. 6 is a schematic circuit diagram of a first working power supply circuit in a mobile hard disk cartridge with write protect function according to the present invention;
FIG. 7 is a schematic circuit diagram of a second operational power supply circuit in a mobile hard disk drive with write protect according to the present invention;
fig. 8 is a schematic circuit diagram of a power conversion circuit of a mobile hard disk in a mobile hard disk cartridge with a write-protect function according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described below clearly and completely, and it should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-8, a mobile hard disk cartridge with write protect function, includes a housing and a circuit board located in the housing, the circuit board is provided with a USB interface circuit, a write protect circuit, a protocol conversion circuit, a mobile hard disk access circuit, a master control power conversion circuit and a mobile hard disk power conversion circuit, the USB interface circuit is respectively connected with the write protect circuit, the protocol conversion circuit, the mobile hard disk access circuit, the master control power conversion circuit and the mobile hard disk power conversion circuit, the master control power conversion circuit is connected with the protocol conversion circuit, the protocol conversion circuit is connected with the mobile hard disk power conversion circuit, the mobile hard disk power conversion circuit is connected with the mobile hard disk access circuit, and the write protect circuit is connected with the protocol conversion circuit.
Specifically, the write protection circuit, the protocol conversion circuit, the mobile hard disk access circuit, the main control power conversion circuit and the mobile hard disk power conversion circuit are powered up through the USB interface circuit, when the mobile hard disk cartridge reads mobile hard disk data normally, the main control power conversion circuit supplies power for the protocol conversion circuit to work, the protocol conversion circuit enters a working mode and sends a signal to the mobile hard disk power conversion circuit, the mobile hard disk power conversion circuit supplies power for the mobile hard disk access circuit to work, data reading of the mobile hard disk is achieved, when the mobile hard disk cartridge needs to switch a mode of reading the mobile hard disk data, the protocol conversion circuit sends a signal to the protocol conversion circuit through the write protection circuit, the protocol conversion circuit switches the working mode of reading the mobile hard disk data, and therefore only data on the mobile hard disk can be copied and downloaded, and data on the mobile hard disk cannot be deleted and modified.
In this embodiment, through setting up USB interface circuit, the protocol conversion circuit, mobile hard disk access circuit, master control power supply converting circuit and mobile hard disk power supply converting circuit, can realize the normal function of mobile hard disk cartridge, simultaneously, through setting up write protection circuit, can change protocol conversion circuit's mode of operation, make mobile hard disk cartridge can only duplicate the data of downloading on the mobile hard disk, can not delete and modify the data on the mobile hard disk, effectively prevent the damage and the falsifying to the data on the mobile hard disk, the factor of safety of mobile hard disk cartridge has been improved.
Preferably, the master control power conversion circuit comprises a first working power supply circuit and a second working power supply circuit, and the first working power supply circuit and the second working power supply circuit are respectively connected with the protocol conversion circuit.
Preferably, the USB interface circuit includes a USB3-TYPE-C chip and a peripheral circuit thereof.
Preferably, the write protection circuit comprises a GA8P703-SOP8 chip and peripheral circuits thereof.
Preferably, the protocol conversion circuit comprises a JMS583 chip and its peripheral circuits.
Preferably, the mobile hard disk access circuit M.2-MKEY chip and peripheral circuits thereof.
Preferably, the first working power supply circuit comprises an FP6381A chip and peripheral circuits thereof.
Preferably, the second working power supply circuit comprises a P25Q40H chip and peripheral circuits thereof.
Preferably, the power conversion circuit of the mobile hard disk comprises a CA8134A chip and a peripheral circuit thereof.
The specific working principle is as follows:
(1) The USB interface circuit is connected with a USB, and simultaneously, the power-on and CC pin handshake (U1) main control chip starts data communication;
(2) After the power supply is powered on, the power supply VBUS simultaneously supplies power to the protocol conversion circuit U1, the master control power supply conversion circuit and the write protection circuit U5;
(3) The main control power supply conversion circuit supplies power to the protocol conversion circuit U1, the protocol conversion circuit completes internal initialization, and after the protocol conversion circuit enters a working state, the states of the mobile hard disk access circuit CN2 and the mobile hard disk power supply conversion circuit U4 are detected, and whether an SSD is inserted or whether the voltage is normal is judged;
(4) After the write protection circuit U5 is electrified, continuously pressing the SW1 key for 5 times to enable the pin 6 of the write protection circuit U5 to output a group of signals to the Q1, so that the SSD hard disk starts write protection, and at the moment, only downloading can be copied, and SSD hard disk data cannot be deleted and modified;
(5) Continuously pressing the SW1 key for 5 times again to enable the 6 pins of the write protection circuit U5 to output a group of signals to the Q1, enabling the SSD hard disk to close write protection, and copying, downloading, deleting and modifying SSD hard disk data at the moment;
it should be noted that, after the write protection is opened or closed, the USB must be unplugged and reconnected to complete the process of opening or closing the write protection.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a mobile hard disk cartridge with area write protect function which characterized in that, includes the casing and is located circuit board in the casing, be provided with USB interface circuit, write protect circuit, protocol conversion circuit, portable hard disk access circuit, master control power switching circuit and portable hard disk power switching circuit on the circuit board, USB interface circuit respectively with write protect circuit, protocol conversion circuit, portable hard disk access circuit, master control power switching circuit and portable hard disk power switching circuit, master control power switching circuit with protocol conversion circuit connects, protocol conversion circuit with portable hard disk power switching circuit connects, portable hard disk power switching circuit with portable hard disk access circuit connects, write protect circuit with protocol conversion circuit connects.
2. The mobile hard disk drive with write protect function as claimed in claim 1, wherein the master power conversion circuit comprises a first working power supply circuit and a second working power supply circuit, and the first working power supply circuit and the second working power supply circuit are respectively connected with the protocol conversion circuit.
3. The mobile hard disk drive case with write protect function as claimed in claim 2, wherein said USB interface circuit comprises USB3-TYPE-C chip and its peripheral circuits.
4. The mobile hard disk cartridge with write protect function as claimed in claim 3, wherein the write protect circuit comprises GA8P703-SOP8 chip and its peripheral circuits.
5. The mobile hard disk cartridge with write protection function as claimed in claim 4, wherein said protocol conversion circuit includes JMS583 chip and its peripheral circuits.
6. The portable hard disk drive with write protection function as claimed in claim 5, wherein the portable hard disk drive access circuit M.2-MKEY chip and its peripheral circuits.
7. The mobile hard disk cartridge with write protection function as claimed in claim 6, wherein said first operational power supply circuit includes FP6381A chip and its peripheral circuits.
8. The portable hard disk drive cartridge with write protect function as claimed in claim 7, wherein the second operational power supply circuit comprises a P25Q40H chip and its peripheral circuits.
9. The mobile hard disk drive box with the write protection function as claimed in claim 8, wherein the mobile hard disk drive power conversion circuit comprises a CA8134A chip and peripheral circuits thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222486584.0U CN218447234U (en) | 2022-09-20 | 2022-09-20 | Mobile hard disk cartridge with write protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222486584.0U CN218447234U (en) | 2022-09-20 | 2022-09-20 | Mobile hard disk cartridge with write protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218447234U true CN218447234U (en) | 2023-02-03 |
Family
ID=85081290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222486584.0U Active CN218447234U (en) | 2022-09-20 | 2022-09-20 | Mobile hard disk cartridge with write protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218447234U (en) |
-
2022
- 2022-09-20 CN CN202222486584.0U patent/CN218447234U/en active Active
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