PCIE storage device with power-off protection
By incorporating a supercapacitor power-loss protection module and dual SATA interfaces on the PCIe storage device, the problem of data corruption caused by power failure in solid-state drives is solved, and storage space and transfer speed are improved.
Patent Information
- Application Number
- CN202423065954.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-12
AI Technical Summary
In existing technologies, solid-state drives (SSDs) are prone to data corruption when the system suddenly loses power, and the connection efficiency between SSDs and solid-state drives (SSDs) is relatively low.
Design a PCIe storage device with power failure protection. By setting two SATA interfaces and a supercapacitor as the power failure protection module on the storage carrier board, cached data can be saved immediately when the system is powered off, and two solid-state drives can be connected at the same time.
It effectively prevents data loss due to power failure during solid-state drive read/write operations, while improving storage space and transfer speed.
Smart Images
Figure CN223513531U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of storage device technology, and in particular to a PCIe storage device with power failure protection. Background Technology
[0002] With the rapid development of computer technology, the importance of various information and data is becoming increasingly apparent. Data storage protection is one of the priority technologies for server manufacturers. Current data storage technology mainly achieves backup of data on the current disk using various algorithms to prevent sudden disk failure. However, due to the system's caching architecture, data is usually not immediately written to SSDs. SSDs, however, are relatively fragile; if the system suddenly loses power, data corruption can occur if read / write operations are interrupted. Therefore, a structure that can activate a backup power supply to preserve data is needed. Furthermore, the connection between solid-state drives (SSDs) and SSDs in current technology is often a one-to-one relationship, resulting in low space utilization efficiency. Utility Model Content
[0003] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.
[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a PCIe storage device with power failure protection. By setting two SATA interfaces on the storage carrier board, the storage device can accommodate two solid-state drives (SSDs) at the same time. Correspondingly, the SSDs installed on the storage device gain larger storage space and faster transmission speeds after being connected to the storage device. The storage carrier board is also equipped with a power failure protection module composed of supercapacitors, which can effectively prevent data loss caused by a sudden power failure during the read / write process of the SSD. When the system loses power, the active supercapacitor is activated to immediately save the data in the cache.
[0005] This utility model provides a PCIe storage device with power failure protection, including a storage carrier board with a PCIe interface at the bottom, a SATA interface on the storage carrier board, a main control chip on the storage carrier board and electrically connected to the SATA interface, and a power failure protection module on the storage carrier board and electrically connected to the main control chip.
[0006] The storage carrier board includes a front and a back. The SATA interface is provided on both the left and right sides of the front of the storage carrier board. The main control chip and the power failure protection module are provided on the back of the base plate. The power failure protection module has several supercapacitors arranged inside and is connected to the main control chip through a charging and discharging circuit.
[0007] The PCIe interface is used to connect to the chassis and supports the NVMe protocol, which can improve transmission bandwidth. The SATA interface on the storage carrier board is used to support SLC or MLC solid-state drives with corresponding interfaces. After conversion through this storage device, the storage capacity of the solid-state drive increases while the transmission rate increases, effectively assisting the solid-state drive. The storage carrier board is also equipped with a power failure protection module composed of supercapacitors. Due to the system's caching architecture, data is usually not immediately written to the SSD. However, the storage structure of the SSD is relatively fragile. If the system suddenly loses power, the data will be corrupted if the data read or write is in progress. The power failure protection module can activate the backup supercapacitor in the event of a sudden power failure to immediately save the cached data and avoid data loss.
[0008] In some embodiments, the PCIe interface is an x2 interface using a gold-finger design, and the controller chip has RAID 0 and RAID 1 capabilities. This device uses a PCIe x2 interface compatible with version 2.0, achieving excellent transmission speeds while still being usable in PCIe 1.0 systems. RAID 0 enables synchronous read / write of data in multiple disk groups, while RAID 1 enables synchronous read / write of data on multiple disks simultaneously. RAID 0's advantage lies in its fast read / write speed, which is n times faster than a single disk, where n specifically refers to the number of disks added to the same array. RAID 1 has the same read / write speed as a single disk, but its advantage is inter-disk data backup and high security. To meet the needs of array storage, a controller chip with RAID 0 and RAID 1 capabilities is selected.
[0009] In some embodiments, a chassis fixing baffle is also included, which is disposed on the left side of the storage carrier. The chassis fixing baffle is used to fix the storage device so that it can be located inside the chassis, while making it convenient for users to pick up the storage device and avoid direct contact with components such as control chips located on it.
[0010] In some embodiments, the SATA interface includes a left SATA interface and a right SATA interface, with the left SATA interface positioned higher than the right SATA interface. To increase the utilization efficiency of the storage carrier board, a high-low SATA interface is provided, allowing two solid-state drives to be connected to the storage carrier board simultaneously without any positional conflicts.
[0011] In some embodiments, an SLC solid-state drive is also included, which has a controller chip, a connector, and flash memory chips. Single-cell flash memory, commonly known as SLC, has the advantages of the most accurate and longest continuous data read / write lifespan. At the same time, the erase / write lifespan of SLC is between 90,000 and 100,000 cycles. Due to its lifespan, accuracy, and overall performance, this type of flash memory is very popular in the market and is considered as the solid-state drive type compatible with the storage device of this application.
[0012] In some embodiments, the SATA interface on the storage carrier board is a female connector, and the connector is a male connector. The SLC solid-state drive is connected to the SATA interface on the storage carrier board through the connector. Conventional solid-state drives typically have male SATA interfaces; therefore, the SATA interface on the storage carrier board is configured as a female connector to allow for mutual connection and compatibility.
[0013] In some embodiments, the left SATA interface and the right SATA interface are respectively connected to the SLC solid-state drives (SSDs), with the SLC SSD connected to the left SATA interface positioned higher than the SLC SSD connected to the right SATA interface. In this connection configuration, the two SSDs overlap but do not contact each other, allowing them to operate independently while effectively saving overall space and improving space utilization.
[0014] In some embodiments, the device also includes an MLC solid-state drive (SSD) with a controller chip, a connector, and flash memory chips. Each MLC chip can store 2 bits of data, providing high storage density while maintaining relatively low cost. Compared to SLC SSDs, it offers increased data density at a lower price, making it a mainstream trend in the high-end market. This storage device is designed to be compatible with this type of SSD.
[0015] In some embodiments, the left SATA interface and the right SATA interface are respectively connected to the MLC solid-state drive, with the MLC solid-state drive connected to the left SATA interface positioned higher than the MLC solid-state drive connected to the right SATA interface. Similar to SLC solid-state drives, this overlapping arrangement allows each drive to operate independently, effectively saving overall space and improving space utilization.
[0016] In some embodiments, the storage carrier board, the SLC solid-state drive, and the MLC solid-state drive are all provided with corresponding fixing screw holes, and the storage carrier board and the SLC solid-state drive are connected by fixing studs. To fix the position of the storage carrier board, the SLC solid-state drive, and the MLC solid-state drive and prevent positional displacement, holes are drilled at corresponding positions and fixed with studs to make them a whole, which facilitates removal through the side chassis mounting brackets.
[0017] By adopting the above technical solution, the beneficial effects of this utility model are:
[0018] This invention enables the storage device to accommodate two solid-state drives (SSDs) simultaneously by setting two SATA interfaces on the storage carrier board. Consequently, the SSDs installed on the storage device gain greater storage space and faster transfer speeds after being connected to the storage device. The storage carrier board is also equipped with a power-loss protection module composed of supercapacitors, which can effectively prevent data loss due to sudden power failure during SSD read / write operations. When the system loses power, the active supercapacitors are activated to immediately save the data in the cache.
[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.
[0020] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.
[0021] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0023] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the storage device connected to the SLC solid-state drive in some embodiments of this utility model;
[0026] Figure 2 This is a schematic diagram of the front structure of the storage device in some embodiments of the present invention;
[0027] Figure 3 This is a schematic diagram of the back structure of the storage device in some embodiments of the present invention;
[0028] Figure 4 This is a schematic diagram of the charging and discharging circuit structure in some embodiments of this utility model.
[0029] Explanation of key figure labels:
[0030] 1. Storage carrier board; 2. PCIe interface; 3. SATA interface; 4. Main control chip; 5. Supercapacitor; 6. Chassis mounting bracket; 7. SLC solid-state drive; 8. Control chip; 9. Connector port; 10. Flash memory chip; 11. Mounting screw hole; 12. Mounting stud. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.
[0032] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected through a transitional structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0034] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0035] Reference Figure 1-4 , Figure 1 This is a schematic diagram of the storage device connected to the SLC solid-state drive in some embodiments of this utility model; Figure 2 This is a schematic diagram of the front structure of the storage device in some embodiments of the present invention; Figure 3 This is a schematic diagram of the back structure of the storage device in some embodiments of the present invention; Figure 4 This is a schematic diagram of the charging and discharging circuit structure in some embodiments of this utility model.
[0036] According to some embodiments of the present invention, the present invention provides a PCIe storage device with power failure protection, including a storage carrier board 1 with a PCIe interface 2 disposed below, a SATA interface 3 disposed on the storage carrier board 1, a main control chip 4 disposed on the storage carrier board 1 and electrically connected to the SATA interface 3, and a power failure protection module disposed on the storage carrier board 1 and electrically connected to the main control chip 4.
[0037] The storage carrier board 1 includes a front and a back. The SATA interface 3 is provided on both the left and right sides of the front of the storage carrier board 1. The main control chip 4 and the power failure protection module are located on the back of the board. The power failure protection module contains several supercapacitors 5 and is connected to the main control chip 4 through a charging and discharging circuit. For details, refer to... Figure 4 The charging and discharging circuit includes two control chips, U8 and U9. Each chip is equivalent to two dual-channel PMOS transistors. When the microcontroller detects that the voltage is below a certain threshold, it outputs a low-level signal to control the four PMOS transistors to turn on, thereby charging and discharging the supercapacitor 5. Preferably, there are seven supercapacitors 5. Figure 3The supercapacitor 5 is located at C92 and C71. Both C92 and C71 have two sets of docking pins, which can be used to connect to two types of supercapacitors 5: one is the high-priced four-pin Murata supercapacitor, and the other is the low-cost two-pin Sanyo supercapacitor. The two can be used interchangeably.
[0038] The PCIe interface 2 is used for connection to the chassis and supports the NVMe protocol, which can improve transmission bandwidth. The SATA interface 3 on the storage carrier board 1 is used to support SLC solid-state drives 7 or MLC solid-state drives with corresponding interfaces. After conversion through this storage device, the storage capacity of the solid-state drive increases while the transmission rate also increases, effectively assisting the solid-state drive, such as... Figure 3 The storage carrier board 1 is also equipped with a power failure protection module consisting of supercapacitors 5. Due to the system's cache architecture, data is usually not written to the SSD immediately. However, the storage structure of the SSD is relatively fragile. If the system suddenly loses power, the data will be corrupted when the data is half-read or written. The power failure protection module can activate the backup supercapacitors 5 in the event of a sudden power failure to save the data in the cache immediately and avoid data loss.
[0039] The storage device also includes a chassis fixing plate 6, which is located on the left side of the storage carrier plate 1. The chassis fixing plate 6 is used to fix the storage device, so that it can be located inside the chassis, and at the same time, it makes it convenient for users to pick up the storage device and avoid direct contact with components such as the control chip 8 located on it.
[0040] The PCIe interface 2 is an x2 interface with gold fingers. The controller chip has RAID 0 and RAID 1 capabilities. This device uses a PCIe x2 interface compatible with version 2.0, which can achieve excellent transmission speeds while still being usable in PCIe 1.0 systems. RAID 0 enables synchronous read and write of data in groups across multiple disks, while RAID 1 enables synchronous read and write of data on multiple disks simultaneously. The advantage of RAID 0 is its fast read and write speed, which is n times faster than the read and write speed of a single disk, where n specifically refers to the number of disks added to the same array. RAID 1 has the same read and write speed as a single disk, but its advantage lies in the mutual backup of data between disks, resulting in high security. To meet the needs of array storage, a controller chip 4 with RAID 0 and RAID 1 capabilities was selected.
[0041] The SATA interface 3 includes a left SATA interface and a right SATA interface, with the left SATA interface positioned higher than the right SATA interface. To increase the utilization efficiency of the storage carrier board 1, a high-low SATA interface 3 is provided, allowing two solid-state drives to be connected to the storage carrier board 1 simultaneously without any positional conflicts.
[0042] The storage device also includes an SLC solid-state drive 7, which has a controller chip 8, a connector 9, and flash memory chips 10. Single-cell flash memory, commonly known as SLC, has the advantages of the most accurate and longest continuous data read / write lifespan. SLC also has an erase / write cycle lifespan of 90,000 to 100,000 cycles. Due to its lifespan, accuracy, and overall performance, this type of flash memory is very popular in the market and is considered as the solid-state drive type compatible with the storage device in this application.
[0043] The SATA interface 3 on the storage carrier board 1 is a female connector, and the connector 9 is a male connector. The SLC solid-state drive 7 is connected to the SATA interface 3 on the storage carrier board 1 through the connector 9. Since the SATA interfaces 3 on conventional solid-state drives are all male connectors, the SATA interface 3 on the storage carrier board 1 is set as a female connector to allow them to connect and match.
[0044] The SLC solid-state drive 7 is connected to both the left and right SATA interfaces. The SLC solid-state drive 7 connected to the left SATA interface is positioned higher than the SLC solid-state drive 7 connected to the right SATA interface. With this connection method, the two solid-state drives overlap but do not touch, allowing them to operate independently while effectively saving overall space and improving space utilization.
[0045] Optionally, the storage device also includes an MLC solid-state drive, which has a controller chip 8, a connector 9, and flash memory chips 10. Each MLC chip can store 2 bits of data, providing high storage density while maintaining relatively low cost. Compared to SLC solid-state drives, it achieves higher data density while reducing price, making it a mainstream trend in the high-end market. This storage device is designed to be compatible with this type of solid-state drive.
[0046] The left and right SATA interfaces are each connected to an MLC solid-state drive (SSD). The MLC SSD connected to the left SATA interface is positioned higher than the MLC SSD connected to the right SATA interface. Similar to the SLC SSD 7, this overlapping arrangement allows each drive to operate independently, effectively saving overall space and improving space utilization.
[0047] The storage carrier board 1, the SLC solid-state drive 7, and the MLC solid-state drive are all provided with corresponding fixing screw holes 11. The storage carrier board 1 and the SLC solid-state drive 7, and the storage carrier board 1 and the MLC solid-state drive are connected by fixing studs 12. In order to fix the position of the storage carrier board 1, the SLC solid-state drive 7, and the MLC solid-state drive and prevent positional displacement, holes are drilled at corresponding positions and fixed with studs to make them a whole, so as to facilitate removal through the side chassis mounting bracket 6.
[0048] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.
[0049] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.
[0050] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.
Claims
1. A PCIe storage device with power failure protection, characterized in that, include The storage carrier board has a PCIe interface located underneath it; The SATA interface is located on this storage carrier board; The main control chip is mounted on the storage carrier board and electrically connected to the SATA interface; A power failure protection module is mounted on the storage carrier board and electrically connected to the main control chip; The storage carrier board includes a front and a back. The SATA interface is provided on both the left and right sides of the front of the storage carrier board. The main control chip and the power failure protection module are provided on the back of the base plate. The power failure protection module has several supercapacitors arranged inside and is connected to the main control chip through a charging and discharging circuit.
2. The PCIe storage device with power failure protection according to claim 1, characterized in that, The PCIe interface is an x2 interface with gold fingers, and the main control chip has RAID0 and RAID1 functions.
3. The PCIe storage device with power failure protection according to claim 1, characterized in that, It also includes a chassis mounting bracket, which is located on the left side of the storage carrier plate.
4. The PCIe storage device with power failure protection according to claim 1, characterized in that, The SATA interface includes a left SATA interface and a right SATA interface, with the left SATA interface positioned higher than the right SATA interface.
5. The PCIe storage device with power failure protection according to claim 4, characterized in that, It also includes an SLC solid-state drive, which has a controller chip, connectors and flash memory chips.
6. The PCIe storage device with power failure protection according to claim 5, characterized in that, The SATA interface on the storage carrier board is a female connector, and the connector is a male connector. The SLC solid-state drive is connected to the SATA interface on the storage carrier board through the connector.
7. The PCIe storage device with power failure protection according to claim 5, characterized in that, The SLC solid-state drive is connected to the left SATA interface and the right SATA interface respectively. The SLC solid-state drive connected to the left SATA interface is higher than the SLC solid-state drive connected to the right SATA interface.
8. The PCIe storage device with power failure protection according to claim 4, characterized in that, It also includes MLC solid-state drives, which have a controller chip, connectors, and flash memory chips.
9. The PCIe storage device with power failure protection according to claim 8, characterized in that, The left SATA interface and the right SATA interface are respectively connected to the MLC solid-state drive. The MLC solid-state drive connected to the left SATA interface is higher than the MLC solid-state drive connected to the right SATA interface.
10. The PCIe storage device with power failure protection according to claim 7 or 9, characterized in that, The storage carrier board, the SLC solid-state drive, and the MLC solid-state drive are all provided with corresponding fixing screw holes. The storage carrier board and the SLC solid-state drive, as well as the storage carrier board and the MLC solid-state drive, are connected by fixing studs.