Storage module

Abstract

The utility model discloses a storage module, which belongs to the technical field of memories and comprises a power conversion circuit, a power protection circuit and a storage unit. The power supply protection circuit is connected with the aviation plug; the power conversion circuit is respectively connected with the power protection and the storage unit; the aviation plug is used for supplying power to the power supply protection circuit, the power supply protection circuit is used for supplying power to the power supply conversion circuit and storing voltage, the voltage is converted by the power supply conversion circuit, and the converted voltage is supplied to the storage unit; the circuit can be protected under the condition of power failure through the arranged power supply protection circuit, so that when the storage module is abnormally powered down, the storage unit can keep working for a period of time, all received data are effectively stored, the reliability and stability of storage are improved, and the service life of the storage unit is prolonged. And meanwhile, the aviation plug is locked at the application end in a reinforced link manner, so that the phenomena of loosening, falling off and the like of the application end due to high-magnitude vibration can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to memory technology field, concretely is a kind of storage module. BACKGROUND

[0002] Solid state disk is with solid-state electronic storage chip array composition hard disk, the most common electronic hard disk currently with flash memory as storage medium. As a kind of new nonvolatile storage medium, flash memory has storage density big, carries convenient, low power consumption and many advantages.

[0003] Solid state disk on market can appear data cannot save data under abnormal condition, for example, when power failure occurs, the saving process of data is interrupted to cause the data saved is not complete. SUMMARY

[0004] In order to solve the problems of prior art, the utility model provides a kind of storage module, comprising: power conversion circuit, power protection circuit and storage unit;

[0005] The power protection circuit is connected with the storage unit and the USB connector respectively, and the USB connector is connected with the host computer.

[0006] The power protection and the storage unit are connected with the power conversion circuit.

[0007] The USB connector is connected with the power protection circuit, for connecting power supply and / or carrying out data transmission to the storage module, and the power protection circuit is used to store voltage, and carry out power failure protection to the storage module.

[0008] The power conversion circuit is connected with the power protection circuit and the storage unit respectively.

[0009] The USB connector is used to supply power to the power protection circuit, and the power protection circuit is used to supply power to the power conversion circuit and store voltage, and the voltage is converted by the power conversion circuit, and the converted voltage is supplied to the storage unit.

[0010] Further, the power protection circuit is a double-path control circuit, and the power protection circuit comprises a first control circuit and a second control circuit.

[0011] The first control circuit comprises a first transistor, a first control chip and a first capacitor.

[0012] The first capacitor and the first control chip are connected with power supply.

[0013] The first transistor is connected with the first control chip, and a first resistor module is arranged on the wire between the first transistor and the power supply.

[0014] A resistor R1 is arranged on the wire between the first control chip and the power supply, and a resistor R11 is arranged on the wire between the first control chip and the first transistor.

[0015] One end of the second control circuit is connected with the power supply, and the other end of the second control circuit is connected with the R11 resistor and the first transistor.

[0016] The second control circuit is also grounded.

[0017] Further, the first capacitor includes a C1 capacitor, a C2 capacitor and a C3 capacitor in parallel.

[0018] Two ends of the first capacitor are also connected with the pins of the first control chip.

[0019] Further, the first resistor module includes a R2 resistor, a R3 resistor, a R4 resistor and a R5 resistor in parallel to form a parallel resistor circuit.

[0020] The R3 resistor is connected in parallel across the R2 resistor, the R4 resistor is connected in parallel across the R3 resistor, and the R5 resistor is connected in parallel across the R4 resistor.

[0021] One end of the R2 resistor is also connected with the power supply, and one end of the R5 resistor is also connected with the first transistor.

[0022] Further, the second control circuit includes a second transistor, a second control chip and a second capacitor.

[0023] The second capacitor and the second control chip are both electrically connected with the power supply.

[0024] The second transistor is electrically connected with the second control chip, a second resistor module is arranged on the wire between the second transistor and the power supply, and the second resistor module is connected with the R11 resistor.

[0025] A R10 resistor is arranged on the wire between the second control chip and the power supply, and a resistor R12 is arranged on the wire between the second control chip and the second transistor.

[0026] The second capacitor, the second control chip and the second transistor are all grounded.

[0027] The second control circuit is also grounded.

[0028] Further, the second capacitor includes a C4 capacitor, a C5 capacitor and a C6 capacitor.

[0029] The C5 capacitor is connected in parallel across the C6 capacitor, the C4 capacitor is connected in parallel across the C5 capacitor, one end of the C4 capacitor is connected with the power supply, and the other end of the C4 capacitor is grounded.

[0030] One end of the C6 capacitor is also connected with the pin of the second control chip respectively.

[0031] Further, the second resistance module comprises R6 resistance, R7 resistance, R8 resistance and R9 resistance.

[0032] The R7 resistance is connected in parallel across the R8 resistance, the R8 resistance is connected in parallel across the R7 resistance, and the R9 resistance is connected in parallel across the R8 resistance.

[0033] One end of the R6 resistance is also connected with the power supply and the R11 resistance respectively, and one end of the R9 resistance is also connected with the second transistor.

[0034] Further, the storage unit comprises an EMMC storage chip, a USB protocol circuit, an RS422 receiving circuit and an EMMC protocol conversion connected with the power supply conversion circuit respectively.

[0035] The RS422 receiving circuit is connected with the navigation plug and the EMMC protocol conversion respectively, the EMMC protocol conversion is stored in the EMMC storage chip, and the EMMC storage chip is connected with the USB protocol circuit.

[0036] The utility model discloses the beneficial effect:

[0037] The power protection circuit can protect the circuit under the power-off condition, so that the storage unit can continue to work for a period of time when the storage module abnormally powers off, all received data can be effectively stored, the reliability and stability of storage are improved, and the navigation plug is locked in the application end in the form of reinforced linkage, so that the application end can be prevented from loosening and falling off due to high-level vibration. BRIEF DESCRIPTION OF DRAWINGS

[0038] Fig. 1 The utility model provides a power protection circuit structure schematic drawing;

[0039] Fig. 2 The utility model provides a storage module frame schematic drawing.

[0040] Reference signs:

[0041] In the figure: 1 is a first transistor, 2 is a first control chip, 3 is a second transistor, 4 is a second control chip, 5 is a first resistance module, 6 is a second resistance module, 7 is a lockable USB plug, 8 is an RS422 receiving circuit, 9 is an EMMC storage chip, and 10 is a USB protocol circuit. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0043] Please refer to Figs. 1-2 The utility model provides a kind of storage module, comprising: power conversion circuit, power protection circuit and storage unit;

[0044] The power protection circuit is connected with the storage unit and the USB plug respectively, and the USB plug is connected with the host computer;

[0045] The USB plug is connected with the power protection circuit, for connecting power supply to the storage module and / or carrying out data transmission, and the power protection circuit is used for storing voltage, and carrying out power failure protection to the storage module;

[0046] The power protection circuit is connected with the USB plug, and the USB plug is connected with the host computer, and the USB plug is a lockable USB plug 7, which can be locked in the application end in the form of reinforced link, so as to avoid the application end from loosening and falling off due to high level vibration.

[0047] The power conversion circuit is connected with the power protection circuit and the storage unit respectively;

[0048] The USB plug is used for supplying power to the power protection circuit, and the power protection circuit is used for supplying power to the power conversion circuit and storing voltage, and the voltage is converted by the power conversion circuit, and the converted voltage is supplied to the storage unit.

[0049] In some embodiments, the power protection circuit is a double-path control circuit, which comprises a first control circuit and a second control circuit.

[0050] The first control circuit comprises a first transistor 1, a first control chip 2 and a first capacitor.

[0051] The first capacitor and the first control chip 2 are connected with power supply.

[0052] The first transistor 1 is electrically connected with the first control chip 2, and a first resistance module 5 is arranged on the wire between the first transistor 1 and the power supply;

[0053] An electric resistance R1 is arranged on the wire between the first control chip 2 and the power supply, and an R11 electric resistance is arranged on the wire between the first control chip 2 and the first transistor 1;

[0054] One end of the second control circuit is connected with the power supply, and the other end of the second control circuit is connected with the R11 electric resistance and the first transistor 1;

[0055] The second control circuit is also grounded.

[0056] The first capacitor comprises a C1 capacitor, a C2 capacitor and a C3 capacitor in parallel;

[0057] The C2 capacitor is connected in parallel across the C1 capacitor, the C3 capacitor is connected in parallel across the C2 capacitor, one end of the C2 capacitor is connected with the power supply, and the other end of the C2 capacitor is connected with the second control circuit;

[0058] The other ends of the first capacitor are also connected with the pins of the first control chip, and the other ends of the C1 capacitor are also connected with the pins of the first control chip 2.

[0059] The first resistance module 5 comprises an R2 electric resistance, an R3 electric resistance, an R4 electric resistance and an R5 electric resistance in parallel to form a parallel resistance circuit;

[0060] The R3 electric resistance is connected in parallel across the R2 electric resistance, the R4 electric resistance is connected in parallel across the R3 electric resistance, and the R5 electric resistance is connected in parallel across the R4 electric resistance;

[0061] One end of the R2 electric resistance is also connected with the power supply, and one end of the R5 electric resistance is also connected with the first transistor 1.

[0062] The second control circuit comprises a second transistor 3, a second control chip 4 and a second capacitor;

[0063] The second capacitor and the second control chip 4 are both electrically connected with the power supply;

[0064] The second transistor 3 is electrically connected with the second control chip 4, a second resistance module 6 is arranged on the wire between the second transistor 3 and the power supply, and the second resistance module 6 is connected with the R11 electric resistance;

[0065] An R10 electric resistance is arranged on the wire between the second control chip 4 and the power supply, and an electric resistance R12 is arranged on the wire between the second control chip 4 and the second transistor 3.

[0066] The second capacitor, the second control chip 4 and the second transistor 3 are grounded.

[0067] The second control circuit is also grounded.

[0068] The second capacitor includes a C4 capacitor, a C5 capacitor and a C6 capacitor.

[0069] The C5 capacitor is connected in parallel across the C6 capacitor, the C4 capacitor is connected in parallel across the C5 capacitor, one end of the C4 capacitor is connected to the power supply, and the other end of the C4 capacitor is grounded.

[0070] One end of the C6 capacitor is also connected to the pin of the second control chip 4, respectively.

[0071] Further, the second resistance module 6 includes a R6 resistor, a R7 resistor, a R8 resistor and a R9 resistor.

[0072] The R7 resistor is connected in parallel across the R8 resistor, the R8 resistor is connected in parallel across the R7 resistor, and the R9 resistor is connected in parallel across the R8 resistor.

[0073] One end of the R6 resistor is also connected to the power supply and the R11 resistor, respectively, and one end of the R9 resistor is also connected to the second transistor 3.

[0074] Wherein, the first control chip and the second control chip are of the same specification, and the model is BW6101MR, and the first transistor and the second transistor are of the same specification, and the model is ST2300.

[0075] Wherein, VCC_IN: represents the input power supply.

[0076] C1-C6: capacitor, wherein C1, C6 is 0.1uF, C2, C3, C4, C5 is 2.7V, which plays a role in filtering, etc., stabilizing the power supply voltage.

[0077] U1 and U2: the model is BWV6010MR, which is the core control chip in the circuit.

[0078] The chip pin includes:

[0079] VDD: power supply pin, used for connecting the power supply.

[0080] GND: ground pin, providing a reference potential: 0.

[0081] IOUT: current output pin, outputting current externally.

[0082] LED: may be used to indicate the relevant state.

[0083] SEL: selection pin, possibly used to select different operating modes, etc.

[0084] R1-R12: resistors, R1 and R10 are 1K, R2-R5, R6-R9 are 10R, R11 and R12 are 1K. Resistors play the role of current limiting, voltage dividing, etc. in the circuit.

[0085] Q1 and Q2: ST2300, which is a transistor, can act as a switch, amplifier, etc.

[0086] In some embodiments, the storage unit includes: an EMMC storage chip 9, a USB protocol circuit, an RS422 receiving circuit 8 and an EMMC protocol conversion 10 connected with the power conversion circuit respectively;

[0087] The RS422 receiving circuit is connected with the navigation plug and the EMMC protocol conversion respectively, the EMMC protocol conversion is stored in the EMMC storage chip, and the EMMC storage chip is connected with the USB protocol circuit.

[0088] Among them, the storage unit data reading communicates with the host computer through USB2.0 or USB3.0 interface protocol, and the written data is stored on the eMMC storage chip. The physical connection of the storage unit is realized through the locking navigation plug connector, and the interface definition of RS422 interface and USB is changed according to needs.

[0089] The design of separating storage and protocol conversion can facilitate direct reading of stored data through the USB interface of PC, effectively avoiding the situation that data cannot be recovered in abnormal conditions.

[0090] For the use environment of special industry equipment such as airborne, shipborne and vehicle-mounted, a power protection circuit is designed, which can ensure that the circuit can work normally to complete effective storage of all received data when power is suddenly cut off during storage, improving the reliability and stability of storage.

[0091] EMMC to USB module: responsible for data access, nominal capacity is 32GB, capacity is designed with margin, and can be expanded to 256GB.

[0092] The module circuit is divided into two parts: one is EMMC to USB chip circuit, and the other is EMMC storage chip circuit.

[0093] Among them, the core device of EMMC to USB chip circuit adopts the protocol conversion chip of domestic manufacturers, which is suitable for converting EMMC protocol into USB protocol.

[0094] The chip integrates an embedded microprocessor with an ARM core, an input end is configured with an MMC interface, and an EMMC chip or an SD card can be carried; and a USB3.0 physical interface is embedded in an output end, and the USB2.0 interface can be downward compatible.

[0095] The EMMC storage chip circuit adopts a domestic EMMC chip independently packaged by the applicant. The chip adopts a domestic EMMC storage chip independently developed by the applicant, the full capacity ranges from 8 GB to 256 GB, and the working temperature is divided into two kinds of -40 / 85 DEG C and -55 / 125 DEG C.

[0096] In use, the whole machine device inputs 5V-48V voltage through the power supply pin with a lock plug. The input voltage is transmitted to the power conversion circuit through the power protection circuit of the module, the input power is converted into 5V, and two 5V are converted into 3.3V. Two 3.3V circuits supply power to the EMMC storage chip, the RS422 receiving circuit and the USB extension circuit at the same time. When the power supply circuit is established, data is converted into EMMC protocol data through the RS422 protocol chip and the storage circuit. Finally, the data is written into the EMMC storage chip through the EMMC bus.

[0097] The above only describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A memory module, characterized by, The power conversion circuit, the power protection circuit and the storage unit are included. The power protection circuit is connected with the storage unit and the USB connector respectively, and the USB connector is connected with the host computer. The USB connector is connected with the power protection circuit, and is used for supplying power and / or transmitting data to the storage module. The power protection circuit is used for storing voltage and protecting the storage module from power failure. The power conversion circuit is connected with the power protection circuit and the storage unit respectively. The USB connector is used for supplying power to the power protection circuit, and the power protection circuit is used for supplying power to the power conversion circuit and storing voltage. The power protection circuit is a double control circuit, and includes a first control circuit and a second control circuit. The first control circuit includes a first transistor, a first control chip and a first capacitor. The first capacitor and the first control chip are connected with the power supply. The first transistor is connected with the first control chip, and a first resistor module is arranged on the wire between the first transistor and the power supply. A resistor R1 is arranged on the wire between the first control chip and the power supply, and a resistor R11 is arranged on the wire between the first control chip and the first transistor. One end of the second control circuit is connected with the power supply, and the other end of the second control circuit is connected with the R11 resistor and the first transistor. The second control circuit is also grounded.

2. The storage module of claim 1, wherein, The first capacitor includes C1 capacitor, C2 capacitor and C3 capacitor in parallel. The two ends of the first capacitor are also connected with the pins of the first control chip.

3. The storage module of claim 2, wherein, The first resistor module includes R2 resistor, R3 resistor, R4 resistor and R5 resistor in parallel to form a resistor circuit.

4. The storage module of claim 3, wherein, The second control circuit includes a second transistor, a second control chip and a second capacitor. The second capacitor and the second control chip are connected with the power supply. The second transistor is connected with the second control chip, and a second resistor module is arranged on the wire between the second transistor and the power supply, and the second resistor module is connected with the R11 resistor. A resistor R10 is arranged on the wire between the second control chip and the power supply, and a resistor R12 is arranged on the wire between the second control chip and the second transistor. The second capacitor, the second control chip and the second transistor are all grounded.

5. The storage module of claim 4, wherein, The second capacitor includes C4 capacitor, C5 capacitor and C6 capacitor. The C5 capacitor is connected in parallel across the C6 capacitor, the C4 capacitor is connected in parallel across the C5 capacitor, one end of the C4 capacitor is connected with the power supply, and the other end of the C4 capacitor is grounded. One end of the C6 capacitor is also connected with the pins of the second control chip respectively.

6. The storage module of claim 4, wherein, The second resistor module includes R6 resistor, R7 resistor, R8 resistor and R9 resistor. The R7 resistor is connected in parallel across the R8 resistor, the R8 resistor is connected in parallel across the R7 resistor, and the R9 resistor is connected in parallel across the R8 resistor. One end of the R6 resistor is also connected with the power supply and the R11 resistor respectively, and one end of the R9 resistor is also connected with the second transistor.

7. The storage module of claim 1, wherein, The storage unit comprises an EMMC storage chip, a USB protocol circuit, an RS422 receiving circuit and an EMMC protocol conversion connected with the power conversion circuit respectively. The RS422 receiving circuit is connected with the navigation plug and the EMMC protocol conversion respectively, the EMMC protocol conversion is stored in the EMMC storage chip, and the EMMC storage chip is connected with the USB protocol circuit.

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