CN103744803B - A kind of power supply module and storage system - Google Patents

A kind of power supply module and storage system Download PDF

Info

Publication number
CN103744803B
CN103744803B CN201410037182.XA CN201410037182A CN103744803B CN 103744803 B CN103744803 B CN 103744803B CN 201410037182 A CN201410037182 A CN 201410037182A CN 103744803 B CN103744803 B CN 103744803B
Authority
CN
China
Prior art keywords
module
power supply
power
storage
controller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201410037182.XA
Other languages
Chinese (zh)
Other versions
CN103744803A (en
Inventor
王金虎
H·F·黄
李惊雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUXI YUNDONG TECHNOLOGY DEVELOPMENT Co Ltd
Original Assignee
WUXI YUNDONG TECHNOLOGY DEVELOPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WUXI YUNDONG TECHNOLOGY DEVELOPMENT Co Ltd filed Critical WUXI YUNDONG TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN201410037182.XA priority Critical patent/CN103744803B/en
Publication of CN103744803A publication Critical patent/CN103744803A/en
Application granted granted Critical
Publication of CN103744803B publication Critical patent/CN103744803B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The present invention relates to technical field of computer data storage, and there is provided a kind of power supply module and storage system.When power down occurs for computer, the power down trigger signal that energy supply control module is sent according to the second transformer, Continuity signal is sent to electronic switch, and from the first energy storage device to the first transformer-supplied, voltage transformation module obtains direct current from mainboard power interface, and powered after transform several times for some data cut-off protection devices in computer, controller in data cut-off protection device is received from energy supply control module after the power down trigger signal generated from the second transformer, data parallel in volatile memory is backed up into nonvolatile memory.In the present invention, it can be achieved to provide supply of electric power by a power supply module for multiple data cut-off protection devices, improve the convenience that user is extended, effectively reduce the extension cost of user.

Description

A kind of power supply module and storage system
Technical field
The present invention relates to technical field of computer data storage, more particularly to a kind of is when occurring powered-off fault in computer Data cut-off protection device with data backup function provides the power supply module of supply of electric power and including the power supply module A kind of storage system.
Background technology
With the development of server and the network storage equipment, the Information Security run and stored in computer is proposed Higher requirement.But, for the power-down conditions of some bursts, such as mains failure or artificial maloperation cut-out calculate electromechanical During source, the situation that the data just run in the central processing unit and internal memory of computer can be caused to lose.
To solve the above problems, generally using UPS in the prior art(Uninterrupted power source)Or super capacitor(Super- Capacitor)The supply of electric power of short time is provided for the central processing unit and internal memory of computer, in case computer will in power down Data in central processing unit and internal memory are backuped in Nonvolatile memory devices.
Above-mentioned Nonvolatile memory devices can be mechanical disk(Hard Disk), tape or solid-state hard drive (SSD, Solid-state Disk).Wherein, solid-state hard drive because it possess compact volume, the cost gradually reduced and The service life of higher length, the Nonvolatile memory devices as the main flow in industry;Simultaneously as super capacitor has Longer service life and relatively small volume, are just combined with solid-state hard drive, and as number after computer power down According to the mainstream technology of protection, correlation technique refers to patent No. ZL200910159932.X, and Authorization Notice No. is CN101630293B Chinese granted patent.
Because there is capacity loss in super capacitor, while after super capacitor is fully charged, its electricity stored can gradually under Drop;Therefore, when unexpected power down occurs for computer, it is necessary to ensure to keep enough electricity in super capacitor, to support centre Manage data in device and internal memory can full backup into solid-state hard drive.
In the prior art, on the one hand, due to by internal memory and solid-state hard drive and other integrated chips at one On PCB, so when we need to be extended upgrading to the internal memory and solid-state hard drive of computer, it is necessary to by multiple collection Into on the PCB insertion computer motherboards of above-mentioned electronic component.Because super capacitor size is generally than larger, therefore cause computer Mainframe box in layout seem that comparison is narrow.
On the other hand, interacted due to matingly being set on each PCB with super capacitor to provide data power down guarantor The circuit structure of protective function, therefore cause the manufacturing cost of whole data cut-off protection device higher.
Further, since data cut-off protection device is when unexpected power down occurs for computer, it is the capacity according to full memory By the data backup in internal memory to nonvolatile memory(Such as nand flash memory)In go, therefore when user is to including internal memory And the data cut-off protection device of nonvolatile memory is when upgraded, it can not often estimate contained in computer this moment Whether the size of the total electrical charge storage capacity of some super capacitors meets the demand of data backup.
When unexpected power down occurs for computer, it may occur however that the electric energy in super capacitor be not enough to support central processing unit and Data full backup in internal memory is into nonvolatile memory, so as to cause the unstable of computer system;And user is voluntarily Ground patches super capacitor often and does not know and need the super capacitor for increasing how many capacity.
Due to the price of super capacitor in itself costly, super capacitor therefore is connected too much can cause to waste, and mistake Connecting super capacitor less can cause the electricity when unexpected power down occurs for computer stored by super capacitor not enough again, and lead Computer system is caused to occur the problems such as unstable and uniformity.
In view of this, it is necessary to the storage to the electric supply installation and computer of data cut-off protection device of the prior art System is improved, to solve above-mentioned flaw.
The content of the invention
The present invention first goal of the invention be to provide a kind of power supply module, prevent computer super in normal power supply The cyclic process of " recharge-discharge " is repeated in electric capacity, so as to improve the service life of super capacitor, and ensure computer because There are the data that are currently running in enough electricity support data power-down protection apparatus to complete data backup procedure during unexpected power down.
To realize above-mentioned first goal of the invention, the invention provides a kind of power supply module, including be sequentially electrically connected with First transformer, motherboard power supply interface and voltage transformation module, if civil power is converted into given voltage and in computer Dry data cut-off protection device is powered, and the power supply module also includes:It is electrically connected at the second transformation of first transformer Device and inverter, the first energy storage device being electrically connected between the second transformer and inverter and electronic switch and power supply Control module;
The electronic switch keeps normal off state in computer normal power supply, when power down occurs for computer, the electricity Source control module obtains the power down trigger signal of the second transformer generation and sends Continuity signal to electronic switch, and by the first storage Can device to the first transformer-supplied.
As a further improvement on the present invention, the electronic switch be electrically connected at the first energy storage device and inverter it Between.
As a further improvement on the present invention, the motherboard power supply interface is ATX power interfaces;The voltage transformation module It is made up of low pressure difference linear voltage regulator and/or dc-dc.
As a further improvement on the present invention, it is also in parallel one between the power supply mainboard interface and voltage transformation module Second energy storage device, the capacitance of second energy storage device is more than or equal to the capacitance of first energy storage device.
As a further improvement on the present invention, it is in addition to electrical with the voltage transformation module and energy supply control module respectively The controller voltage output interface of connection, to receive the interrupt signal sent by power-supply controller of electric module, and will be by the electricity Direct current after pressure modular converter conversion is provided to data cut-off protection device.
As a further improvement on the present invention, first energy storage device and the second energy storage device include some super capacitors Group, the super capacitor group is in series by some super capacitors.
As a further improvement on the present invention, the electronic switch include metal-oxide-semiconductor, relay, triode, IGBT pipe or Thyratron transistor.
Second goal of the invention of the present invention is to provide a kind of storage system, by some data cut-off protection devices The module of tool power supply supply realize and be effectively integrated that and it is simultaneously multiple data cut-off protections to realize by power supply module Device provides supply of electric power, to improve the convenience that user is extended, and effectively reduces the extension cost of user.
To realize above-mentioned second goal of the invention, protected the invention provides a kind of storage system, including some data power down Protection unit, the data cut-off protection device includes controller, some volatile memory for being connected with controller and some non- Volatile memory, and the interface module for being connected with controller and at least being transmitted with main frame progress data and signal;
The storage system also includes a power supply module as described above, and the power supply module is electrically connected with least one Individual data power-down protection apparatus;
When power down occurs for computer, the power supply module supplies for the electric power that data cut-off protection device provides the short time Should, by the data backup in volatile memory into nonvolatile memory.
As a further improvement on the present invention, the interface module includes DIMM interfaces or PCI-E interface.
As a further improvement on the present invention, the data cut-off protection device also includes the control being electrically connected with controller Device control source interface processed, the power supply module also includes with the voltage transformation module and energy supply control module electrically connecting respectively The controller voltage output interface connect, and modularity wire assembly;
The controller voltage output interface can be carried out by modularity wire assembly and controller control source interface The transmission of power supply and control signal.
As a further improvement on the present invention, the storage system includes at least two data cut-off protection devices, each Data cut-off protection device is connected in parallel to power supply module by respective controller control source interface and modularity wire assembly Controller voltage output interface.
As a further improvement on the present invention, the data cut-off protection device also includes being arranged on controller control source Low pressure difference linear voltage regulator between interface and controller, volatile memory and nonvolatile memory.
As a further improvement on the present invention, the power supply module also includes the alarm dress being connected with energy supply control module Put, the energy supply control module includes a memory module;
The memory module is configured as preserving the volatile memory and nonvolatile memory in access computer Storage medium configuration parameter, and the first energy storage device capacitance configuration parameter;
When computer power-on self-test, storage medium configuration parameter is compared with capacitance configuration parameter, if electric capacity When amount configuration parameter is unsatisfactory for storage medium configuration parameter requirement, energy supply control module is sent to warning device to be enabled signal to drive Move the warning device;
The warning device includes buzzer, LED, and the memory module includes E2PROM, ROM, the controller include FPGA or ASIC, the volatile memory is DRAM, and the nonvolatile memory includes nand flash memory and/or phase transformation is deposited Reservoir.
Compared with prior art, the beneficial effects of the invention are as follows:Pass through the storage to being made up of super capacitor in the present invention The reasonable control of energy device, improves the reasonable utilization to super capacitor;Simultaneously by being multiple simultaneously by a power supply module Data cut-off protection device provides supply of electric power, improves the convenience that user is extended, and effectively reduces the extension of user Cost.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of power supply module of the invention;
Fig. 2 is that energy supply control module sends ON signals to turn on the first energy storage dress to electronic switch when power down occurs for computer The schematic diagram for the supply path put;
Fig. 3 is that energy supply control module sends OFF signal to cut off the supply path of the first energy storage device to electronic switch, and Turn the schematic diagram powered by the second energy storage device;
Fig. 4 is the schematic diagram of the first energy storage device in various embodiments of the present invention;
Fig. 5 is a kind of schematic diagram of storage system of the invention;
Fig. 6 is a kind of schematic diagram for the storage system for setting warning device;
Fig. 7 is a kind of schematic diagram for storage system that a power supply module connects multiple data cut-off protection devices;
Fig. 8 is a kind of thin portion schematic diagram of storage system shown in Fig. 7;
Wherein, the description of reference numerals in specification is as follows:
Storage system -10;
Power supply module -100;First transformer -101;Motherboard power supply interface -102;Voltage transformation module -104;First storage Can device -105;Second energy storage device -205;Electronic switch -106;Inverter -107;Energy supply control module -108;Power supply Memory module -1081 included in module;Controller voltage output interface -109;
Super capacitor -1151;Super capacitor group interface -1052,1053;
Main frame -300;CPU-301;Warning device -110;The enable signal -111 exported to warning device;
Data cut-off protection device -200;Controller -201;Volatile memory -202;Nonvolatile memory -203; Interface module 204;Controller control source interface 209;
Modularity wire assembly 219.
Realization, functional characteristics, concrete technical scheme and the corresponding beneficial effect of each goal of the invention of the present invention will combine each Individual embodiment, and be described in further detail with reference to each accompanying drawing.
Embodiment
The present invention is described in detail for shown each embodiment below in conjunction with the accompanying drawings, but it should explanation, these Embodiment not limitation of the present invention, those of ordinary skill in the art according to these embodiment institute work energy, method, Or equivalent transformation, replacement or combination in structure, belong within protection scope of the present invention.
Embodiment one
It please join a kind of the first embodiment of power supply module of the invention shown in Fig. 1, Fig. 2 and Fig. 4.
In the present embodiment, the power supply module 100 includes two supply paths.
First supply path is that computer is under normal power supply situation and can inputted by civil power to power supply module 100, so Afterwards by the first transformer 101, motherboard power supply interface 102 and the voltage transformation module 103 that are sequentially electrically connected with, by 220V or 110V civil power(AC)Be converted to after given voltage, powered for some data cut-off protection devices 200 in calculating.It is preferred that, The motherboard power supply interface 102 is 24Pin ATX power interfaces, or is 20Pin ATX power interfaces.
Specifically, in the present embodiment, we are illustrated with 220V electric mains.220VAC is passing through the first transformer Direct current of the output no more than 12V after the processing of 101 transformations(Call DC in the following text), and preferably 12V direct current, and input to mainboard electricity Source interface 102.
Due to computer chips(That is, integrated circuit)Required operating voltage also include 1.0V, 1.2V, 1.5V, 1.8V、2.5V.For chip different in computer, the required operating voltage that uses be it is different, such as DDR4's The operating voltage that operating voltage is 1.2, DDR3 is 1.5V, and DDR2 operating voltage is 1.8V, and the operating voltage of nand flash memory is 1.8V, FPGA operating voltage are 1.5V, serial high-speed interface(GTP)Operating voltage be 1.0V and 1.2V.FPGA kernel Logic array and IO operating voltage are 1.2V.The low-speed device or optoelectronic device being connected with FPGA output ends(Such as computer Button, LED)Operating voltage be 3.3V.
Those skilled in the art can be arrived with reasonable prediction, and the working power of nand flash memory can be with semiconductor integrated circuit system Gradually reduced for the deduction of technique;Now, electricity is done by the direct current of 103 pairs of inputs of voltage transformation module in the present embodiment Press after conversion process, to obtain corresponding operating voltage.
Handled therefore, it is also desirable to do further voltage transformation by voltage transformation module 103 to 3.3VDC.Specifically, The voltage transformation module 103 is by low pressure difference linear voltage regulator(Call LDO in the following text)And/or dc-dc composition.
Low pressure difference linear voltage regulator(Low Drop-Out, LDO), it is integrated with conducting resistance on extremely low line MOSFET, the hardware circuit such as Schottky diode, sample resistance and divider resistance, and with overcurrent protection, overheat protector, precision The functions such as a reference source, difference amplifier, delayer, in addition LDO also have as load short circuits protection, overvoltage shut-off, cross Thermal shutdown, Other functions such as reverse connecting protection.
DC-DC converters(DC-DC Convertor)The electric energy of one magnitude of voltage is changed into another by finger in DC circuit The device of the electric energy of individual magnitude of voltage, it has isolation(It is noisy be acoustically separated from, security isolation, ground loop eliminate), voltage transformation(Rise Buckling is changed, decompression transformation), protection(Containing short-circuit protection, overvoltage protection, under-voltage protection, overcurrent protection), it is active power filtering noise reduction, straight Flow the functions such as voltage stabilizing.
In the present embodiment, after 3.3VDC is handled by voltage transformation, DC voltage-stabilizing of voltage transformation module 103 etc., The 3.3VDC that first transformer 101 is exported is converted to various required for various chips in data cut-off protection device 200 The DC of specification.
Specifically, the voltage transformation module 103 by 3.3VDC be converted to 1.0VDC, 1.2VDC, 1.5VDC, 1.8VDC, Five kinds of given voltages such as 2.5VDC.Meanwhile, the motherboard power supply interface 102 also can pass through shielded conductor as in the state of the art And electric connector(It is not shown)It is electrically connected with the motherboard power supply interface 102, to provide electricity for the power device in computer Power is supported, such as central processor fan, graphic display card, disc driver, CD drive.So, when the power supply group When part 100 is installed in computer cabinet, ATX interfaces existing on computer motherboard can be made full use of, so as to reduce to existing The change of computer motherboard, improvement cost of the reduction user to computer.
It should be noted that voltage transformation module 103 change obtained by given voltage can be with manufacture of semiconductor technology Development and be continually changing, therefore be not limited to this five kinds of given voltages for being illustrated in the present embodiment.
In the present embodiment, the power supply module 100 also includes the second transformer for being electrically connected at first transformer 101 104 and inverter 107, the first energy storage device 105 and electricity that are electrically connected between second transformer 104 and inverter 107 Sub switch 106 and energy supply control module 108.
Thus, this is constituted by the second transformer 104, the first energy storage device 105, electronic switch 106 and inverter 107 Invent a kind of Article 2 supply path of power supply module 100 in embodiment one.Second transformer 104 can change 220VAC For 12VDC.
Specifically, the electronic switch 106 can be metal-oxide-semiconductor, relay, triode, IGBT pipes or thyratron transistor, go forward side by side One step is preferably metal-oxide-semiconductor.
Join shown in Fig. 5, if first energy storage device 105 includes some super capacitor groups 1051, each super capacitor group 1051 are in series by five super capacitors 1151.Specifically, the super capacitor 1151 can choose rated operational voltage for 2.5V, Capacitance is 200 farads, can so constitute the super capacitor group 1051 that 12V and capacitance are 40 farads.
It should be noted that in order that the first energy storage device 105 has bigger electricity, can be connected in parallel multigroup super simultaneously Level capacitance group 1051, each super capacitor group 1051 is used as DC supply input/output by super capacitor group interface 1052,1053 End.
When computer is in normal power supply, the electronic switch 106 keeps normal off state, and can pass through first supply path Carry out supply of electric power of specification for needed for the chip of each in computer or drive device provide it.Simultaneously as the second transformation Device 104 is still electrically connected with first energy storage device 105, and is by the 12VDC exported after the conversion of the second transformer 104 All super capacitors 1151 in first energy storage device 105 charge, and can be automatically stopped after the charging of the first energy storage device 105 is finished Charging.
Coordinate shown in reference picture 2, when power down occurs for computer, second transformer 104 can produce power down trigger signal (Power level fluctuation Signal), the power down trigger signal can acquired in energy supply control module 108, and to Electronic switch 106 sends Continuity signal(That is, ON signals), so as to turn on Article 2 supply path, and start by first energy storage Device 105 exports 12VDC, and 12VDC is converted to finally by inverter 107 220VAC again and to the first transformer 101 Power supply.
Specifically, the power down trigger signal produced by the second transformer 104 can be high level signal or low electricity Ordinary mail number.This means, can be in energy supply control module 108, can be by computer normal shutdown(Normal powering down situation)When from second become The signal definition that depressor 104 is sent is high level signal, and by computer powered-off fault is sent from the second transformer 104 Signal definition be low level signal, so as to realize computer in powered-off fault, the power down that the second transformer 104 is generated is touched Signalling recognizes that vice versa by energy supply control module 108;Meanwhile, the power down trigger signal can also be encoded signal.
Hereafter, by the first transformer 101, motherboard power supply interface 102, voltage transformation module 103 to export given voltage, Its detailed process ginseng is foregoing, will not be repeated here.Meanwhile, power down trigger signal can also be passed through son by the energy supply control module 108 System bus(Subsystem Bus), such as sm_bus(It is not shown)Power down trigger signal is sent to main frame 300, and can be passed through Main frame 300 accesses the energy supply control module 108.Sm_bus is a kind of binary string row bus, is mainly used in low speed in computer The communication of the equipment of rate.
After computer is re-powered, main frame 300 passes through the power supply mould by accessing energy supply control module 108 Block 108 sends OFF signal to electronic switch 106, to cut off the electric power output of the first energy storage device 105, and proceeds by charging Process.
In the present embodiment, the electronic switch 106 is electrically connected between the first energy storage device 105 and inverter 107.Together When, because computer is in normal power supply, electronic switch 106 keeps normal off state, it is therefore possible to prevent under normal conditions by this First energy storage device 105 is computer power supply, it is to avoid unnecessary " electric discharge ", so as to avoid super capacitor 1151 " normal to supply Electricity " is this in most cases, repeatedly carries out the circulation of " recharge-discharge ", is effectively improved making for super capacitor 1151 Can not be data during computer powered-off fault while also reducing super capacitor 1151 in the case of not enough power supply with the life-span Power-down protection apparatus 200 provides supply of electric power prolonged enough, and causes the unstable equivalent risk of computer system, so as to improve The reliability and stability of computer.
Embodiment two
Join a kind of second of embodiment of power supply module of the invention shown in Fig. 3.
The present embodiment and the main distinction of the first embodiment are, in power supply mainboard interface 102 and voltage transformation module Second energy storage device 205 also in parallel between 103.It should be noted that the specific structure of second energy storage device 205 with A kind of structure of the first energy storage device 105 of embodiment is identical, therefore, repeats no more in the present embodiment.Second energy storage is filled It can be connected in putting 205 in multiple super capacitor groups 1051 and each super capacitor group 1051 containing multiple super capacitors 1151 with shape Into 12VDC output voltages;Meanwhile, also can be in second energy storage device 205 by the super capacitors of other some specifications(Do not show Go out)By the form of in parallel or series-parallel connection, to form 12VDC output voltages.
Understood with reference to reference picture 7 and Fig. 8, when power down occurs for computer, controller 201 can under the control of main frame 300, The data run and handled just in central processing unit are preserved to controller 201 by interface module 204 first, and in control Under the control of device 201, the data in central processing unit are preserved into volatile memory 202.Because central processing unit has many Level high-speed high capacity caching L1, L2, L3, the whole holding time T1 of data is generally in nanosecond.In the present embodiment it is signified in Data in central processor are " field datas ".
Next, under the control of controller 201, volatile memory 202 and its center deposited are handled temporarily The data of device are preserved to non-volatile in the form of " block number evidence " or " page data " by the buffer storage in controller 201 and deposited In reservoir 203, the holding time T2 of the process is generally between several seconds to tens seconds.
However, the power consumption of central processing unit is generally very big, in order to save the valuable electricity in power supply module 100, to support Data in volatile memory 202 are backed up in nonvolatile memory 203 completely;When the data in central processing unit are preserved To volatile memory 202, energy supply control module 108 sends OFF signal to electronic switch 106, so as to cut off first storage The supply of electric power to data cut-off protection device 200 of energy device 105.Now motherboard power supply interface 102 and voltage transformation module Electrical connection is interrupted between 103;At the same time, positioned at bypass the second energy storage device 205 substitute the first energy storage device 105, with to The voltage transformation module 103 provides 12VDC supply of electric power, and supports that the controller 201 in data cut-off protection device 200 will Data backup is into nonvolatile memory 203 in its volatile memory 202.
Specifically, the controller 201 can be FPGA(Field-Programmable Gate Array, field programmable gate Array);Or ASIC(Application Specific Integrated Circuit, application-specific IC), its is usual Including 32-bit processors, similar ROM, RAM, E2PROM, Flash memory cell;The controller 201 or CPLD (Complex Programmable Logic Device, complicated Programmadle logic device).
In the present embodiment, controller 201 is preferably FPGA.The volatile memory 202 is DRAM(Dynamic randon access Memory), the nonvolatile memory 203 can be nand flash memory or phase transition storage or both combination, and further it is excellent Elect nand flash memory as.Therefore, in the present embodiment, by the technical scheme, two energy storage devices can be effectively prevented from(That is, the One energy storage device 105 and the second energy storage device 205)Middle stored charge is wasted, and is improved to being stored in two energy storage devices The reasonable utilization of electric charge, prevents the waste of electric charge.
Meanwhile, in the present embodiment, the capacitance of second energy storage device 205 is more than or equal to the first energy storage device 105 capacitance, and be preferably further that both are equal.
Embodiment three
Join a kind of the third embodiment of energy storage device of the invention shown in Fig. 5.
The present embodiment and the main distinction of first two embodiment are that in the present embodiment, the power supply module 100 also includes The controller voltage output interface 109 being electrically connected with respectively with the voltage transformation module 103 and energy supply control module 108, and The interrupt signal that energy supply control module 108 is sent is received by the controller voltage output interface 109, and will be by the voltage conversion Direct current after module 103 is changed is provided to data cut-off protection device 200.
Specifically, the data cut-off protection device 200 also includes a controller control source being connected with controller 201 Interface 209.The controller voltage output interface 109 passes through modularity wire assembly 219 and electric connector(It is not shown)Set up electricity Connection, so as to carry out supply of electric power for whole data cut-off protection device 200.
In figure 6 for ease of the displaying present invention, only show that a power supply module 100 connects a data power-down protection apparatus 200, those skilled in the art are readily conceivable that the power supply module 100 can also be by the controller voltage output interface 109 and two Individual or greater number of data cut-off protection device 200 is connected.When user upgrades to computer, it is only necessary to will be more The modularity wire assembly 219 and electric connector of quantity are connected in parallel to controller voltage output interface 109.
By the present invention, user to computer when upgrading, it is thus only necessary to data of upgrading power-down protection apparatus 200 Quantity, without upgrading to power supply module 100 so that reduce when user is extended upgrading to computer into This.Simultaneously as multiple data cut-off protection devices 200 can share a power supply module 100, therefore prevented also from main frame Space in case is narrow, improves the radiating effect of cabinet.
In the present embodiment, when computer is normal in use, volatile memory in the data cut-off protection device 200 (DRAM)It can be used directly as calculator memory;, can be by system data and other user data when computer normal shutdown Preserve to nonvolatile memory(Nand flash memory).
Specifically, the data cut-off protection device 200 carries out data exchange by interface module 204 and main frame 300.More more Specifically, the interface module 204 can be alternatively PCI-E interface, and preferably DIMM interfaces for DIMM interfaces.Work as interface module 204 when being DIMM interfaces, and can lead to form of the controller control source interface 209 in the present embodiment using PCI-E interface Cross modularity wire assembly 219 or flexible PCB(Flexible Printed Circuit Board)Pass through its two ends electricity The electric connector of connection(It is not shown)The work used required for the data cut-off protection device 200 is obtained at power supply module 100 Make voltage.
As another deformation of the present embodiment, when data cut-off protection device 200 passes through DIMM interfaces insertion computer During mainboard, the voltage transformation module 103 in power supply module 100 can be also arranged in data cut-off protection device 200, and can be same When save controller control source interface 209, with directly by the internal wiring in pcb board directly be controller 201, volatibility Memory 202, nonvolatile memory 203 and other need the electronic component of driven by power(It is not shown)Power supply.
When power down occurs for computer, energy supply control module 108 is received after power down trigger signal, can be incited somebody to action by sm_bus The power down trigger signal is sent to controller 201, and carries out by controller 201 process of data preservation and backup.
Example IV
Join a kind of the 4th kind of embodiment of energy storage device of the invention shown in Fig. 6.
The present embodiment is identical with first three embodiment or content of replaceable part does not repeat to show, and only shows area In place of not.In the present embodiment, the power supply module 100 also includes the warning device 110 being connected with energy supply control module 108, The energy supply control module 108 includes a memory module 1081.The memory module 1081 is selected from E2PROM, ROM, or other With the storage body device for going data after electricity to preserve function, such as the note that BIOS is preserved by button cell on computer motherboard Recall body.
Specifically, when electric on computer, all volatile memory 202 in 300 pairs of access computers of main frame are deposited Store up capacity, working frequency, and nonvolatile memory 203 number of pages, page capacity, number of blocks, block capacity, I/O bit wides, work The parameters such as working frequency, addressing system, technique line width, chip architecture carry out power-on self-test, by volatile memory 202 and it is non-easily The storage medium configuration parameter of the property lost memory 203 is preserved to the memory module 1081.Meanwhile, pass through energy supply control module The capacitance of 108 pairs of first energy storage devices 105 carries out power-on self-test, and the capacitance of first energy storage device 105 is matched somebody with somebody Parameter is put to preserve to the memory module 1081.
When computer power-on self-test, storage medium configuration parameter is compared with capacitance configuration parameter, if electric capacity When amount configuration parameter is unsatisfactory for storage medium configuration parameter requirement, energy supply control module 108 sends to warning device 110 and enables letter Numbers 111 to drive warning device 110.In the present embodiment, the warning device 110 includes buzzer, LED, and preferably buzzing Device.
Specifically, in the specification of the super capacitor 1151 in configuring first energy storage device 105, can be according to following formula (1)Calculating is obtained:
C≥I*t/ΔV+C0(1);Wherein,
The lowest charge amount of storage that C is had by the first energy storage device 105;I is data cut-off protection device 200 in accident Start the average operating current during Backup Data is finished to data backup after power down;Δ V is that the first energy storage device 105 exists The voltage V at two ends when fully charged1Voltage V when can not drive inverter 107 with it2Between voltage difference;T fills for the first energy storage The voltage at 105 two ends is put from V1It is reduced to V2Time used;C0It is residual when can not drive inverter 107 for the first energy storage device 105 The remaining quantity of electric charge.Simultaneously, it is ensured that t is more than the data backup time(The total time of T1+T2 i.e. in embodiment two).
Similarly described, the second energy storage device 205 can also join above-mentioned formula when configuring the specification of super capacitor 1151(1) Calculating obtains configuring specification accordingly.
If user is total electricity of the super capacitor with charge storage set in the power supply module 100 of computer Off-capacity is to support that data backup is in use, can be by being not limited in the form of sound and optic signal when power down occurs for computer User is reminded at least to access greater number of super capacitor group 1051 in parallel in first energy storage device 105, so as to improve The security and the stability of a system of computer.
Embodiment five
A kind of a kind of embodiment of storage system of the invention with reference to shown in ginseng Fig. 5, Fig. 7 and Fig. 8.
In the present embodiment, a kind of storage system 10, including some data cut-off protection devices 200, the data power down Protection device 200 includes controller 201, some volatile memory 202 for being connected with controller 201 and some non-volatile deposited Reservoir 203, and be connected with controller 201 and the interface module 204 that data and signal are transmitted at least is carried out with main frame 300, should Interface module 204 includes DIMM interfaces or PCI-E interface, and preferably PCI-E interface.
Further, the storage system 10 also includes any power supply module 100, the power supply in a foregoing embodiments Component 100 is electrically connected with least one data power-down protection apparatus 200, and the expansible multiple data cut-off protection devices of connection 200。
When power down occurs for computer, the power supply module 100 is the electric power that data cut-off protection device 200 provides the short time Supply, by the data backup in volatile memory 202 into nonvolatile memory 203.
Join shown in Fig. 5, in the present embodiment, the data cut-off protection device 200 includes controller control source interface 209, the power supply module 100 includes the control being electrically connected with respectively with the voltage transformation module 103 and energy supply control module 108 Device voltage output interface 109, and modularity wire assembly 219.The modularity wire assembly 219 can electrically be connected by its two ends The electric connector connect(It is not shown)By controller voltage output interface 109 respectively with setting in data cut-off protection device 200 Controller control source interface 209 is electrically connected with.
As shown in Figures 7 and 8, the storage system 10 may also include a power supply module 100 and two data cut-off protections Device 200, each data cut-off protection device 200 passes through respective controller control source interface 209 and modularity wire group Part 219 is connected in parallel to the controller voltage output interface 109 of power supply module 100.
Specifically, the controller voltage output interface 109 can be defeated by modularity wire assembly 219 and controller voltage Incoming interface 209 carries out the tool of the transmission of power supply signal and control signal, its power circuit specifically used and control signal lines Body is set depending on the concrete model and type of controller 201 that can be in data cut-off protection device 200.
With reference to shown in Fig. 7 and Fig. 8, in the present embodiment, volatile memory 202 and nonvolatile memory 203 are distinguished It is connected in parallel with controller 201, to form multiple parallel data access passages.In the present embodiment, controller 201 can be simultaneously It is connected in parallel two or more volatile memory 202 and two or more nonvolatile memory 203。
In fig. 8, to simplify sign, two volatile memory 202 being connected in parallel respectively with controller 201 are only shown With nonvolatile memory 203.
When power down occurs for computer, the energy supply control module 108 in the power supply module 100 is sent to controller 201 Power down trigger signal, and the data parallel in volatile memory 202 is backed up into nonvolatile memory by controller 201 203.In the present embodiment, the volatile memory 202 is selected from DRAM(Dynamic random access memory), the non-volatile memories Device 203 is selected from phase transition storage(Phase Change Memory, PCM).
Coordinate shown in ginseng Fig. 6, in the present embodiment, the power supply module 100 also includes what is be connected with energy supply control module 108 Warning device 110, the energy supply control module 108 also includes memory module 1081.
When electric on computer, all volatile memory 202 in 300 pairs of access computers of main frame and non-volatile deposit The storage medium configuration parameter of reservoir 203 carries out power-on self-test, and above-mentioned storage medium configuration parameter is passed through into an I/O signal Line(It is not shown)Preserve the memory module 1081 into energy supply control module 108.Meanwhile, by energy supply control module, 108 pairs are somebody's turn to do The capacitance of first energy storage device 105 carries out power-on self-test, and the capacitance configuration parameter of first energy storage device 105 is protected Deposit to the memory module 1081.
When computer power-on self-test, storage medium configuration parameter is compared with capacitance configuration parameter, if electric capacity When amount configuration parameter is unsatisfactory for storage medium configuration parameter requirement, energy supply control module 108 sends to warning device 110 and enables letter Numbers 111 to drive warning device 110.In the present embodiment, the warning device 110 includes buzzer, LED.It is preferred that, the alarm Device 100 is LED.
It should be noted that as another deformation of the present embodiment, the display that computer is carried can also be used (Monitor)It is used as a kind of warning device., can be by above-mentioned energy supply control module when mainboard BIOS self-inspection after electricity on computer On the display that 108 alarm signals sent to warning device 110 directly push to user.Because mainboard BIOS hardware check is aobvious It is ripe prior art to show computer system parameter, be will not be repeated here.
As preferred embodiment, also I can be set in the data cut-off protection device 2002C interface(Do not show Go out), the I2C interface is connected to controller 201, and passes through the I2C interface can be realized to be consolidated to data power-down protection apparatus 200 Part is upgraded.
I2C is a kind of universal serial bus, is typically provided two signal wires, and one is two-way data wire SDA, and another when being Clock line SCL.Wherein, data wire SDA is directly controlled by main frame 300, the various access I of clock line SCL connections2The equipment of C buses.
In the present embodiment, the data cut-off protection device 200 is connected by DIMM interfaces with main frame 300, and passes through mould Groupization wire assembly 219 sets up electric connection between the data cut-off protection device 200 and power supply module 100.
Meanwhile, in the present embodiment, voltage transformation module 103 is arranged on motherboard power supply interface 102 and controller voltage is defeated Between outgoing interface 109, the 3.3VDC the first transformer 101 to be exported change 1.0VDC, 1.2VDC, 1.5VDC, Five kinds of given voltages such as 1.8VDC, 2.5VDC, think controller 201 in data cut-off protection device 200, volatile memory 202nd, nonvolatile memory 203 and other electronic components provide operating voltage, it is ensured that its normal work.
Embodiment six
The present embodiment and the main distinction of embodiment five are that in the present embodiment, the data cut-off protection device 200 leads to Cross PCI-E interface(That is, the interface module 204 in Fig. 5)It is connected with main frame 300, and by modularity wire assembly 219 in institute State to set up between data cut-off protection device 200 and power supply module 100 and be electrically connected with.
In the present embodiment, the interface module 204 in data cut-off protection device 200 uses PCI-E interface, and passes through this Interface is planted to be directly inserted on computer motherboard.Now, the controller power source output interface 109 in power supply module 100 can be saved, And pass through interface module 204(That is, PCI-E interface)The work of all size is directly provided for multiple data cut-off protection devices 200 Make voltage and control signal.
PCI-E interface employs bi-directional data transmission, the technology used similar to DRAM internal memories, both in a clock cycle Upper lower edge can transmit data, it can use PCI-E_1X, PCI-E_2X, PCI-E_4X, PCI-E_8X, PCI-E_16X Etc. various standards.Wherein, PCI-E_16X message transmission rate was suitable for Large Copacity DRAM and great Rong from now on up to 4GB/ seconds Amount nand flash memory is connected in parallel to the data communication demand of big flow produced during controller 201.
Embodiment seven
The present embodiment and the main distinction of embodiment five and embodiment six are, in the present embodiment, in power supply module 100 Motherboard power supply interface 102 and controller voltage output interface 109 between be not provided with voltage transformation module 103, and in controller A voltage is set to turn between control source interface 209 and controller 201, volatile memory 202 and nonvolatile memory 203 Change the mold block 103(It is not shown).
Specifically, in the present embodiment, the voltage transformation module 103 is low pressure difference linear voltage regulator(It is not shown), and lead to The 3.3VDC that over-pressed difference linear constant voltage regulator is exported the first transformer 101 change 1.0VDC, 1.2VDC, 1.5VDC, 1.8VDC, Five kinds of given voltages such as 2.5VDC, thus for the controller 201 in data cut-off protection device 200, volatile memory 202, Nonvolatile memory 203 and other electronic components provide operating voltage, it is ensured that its normal work.
Those skilled in the art can be arrived with reasonable prediction, can also be connect in motherboard power supply interface 102 and controller voltage output Between mouthfuls 109, and in controller control source interface 209 and controller 201, volatile memory 202 and non-volatile deposit One low pressure difference linear voltage regulator of each setting is distinguished between reservoir 203(It is not shown), power supply noise is preferably reduced to realize, is carried The technique effect of high PSRR.
Finally, in general, those skilled in the art recognize each embodiment described in the invention can individually and/ Or multiple hardwares structure is collectively constituted, the hardware configuration includes being used in PC, work station, server, cloud computing main frame Computer comprising storage system, and provide the computer power supply that integrated power supply is supplied for above-mentioned hardware configuration.
Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention Or change should be included in the scope of the protection.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art It may be appreciated other embodiment.

Claims (13)

1. a kind of power supply module, including the first transformer, motherboard power supply interface and the voltage transformation module being sequentially electrically connected with, with Civil power is converted into given voltage and powered for some data cut-off protection devices in computer, it is characterised in that the electricity Source component also includes:It is electrically connected at the second transformer and inverter of first transformer, is electrically connected at the second transformation The first energy storage device and electronic switch and energy supply control module between device and inverter;
The electronic switch keeps normal off state in computer normal power supply, when power down occurs for computer, the power supply control Molding block obtains the power down trigger signal of the second transformer generation and sends Continuity signal to electronic switch, and is filled by the first energy storage Put to the first transformer-supplied;
The specification of super capacitor in first energy storage device, can calculate according to following formula (1) and obtain:
C≥I*t/ΔV+C0(1);Wherein,
The lowest charge amount of storage that C is had by the first energy storage device;I is that data cut-off protection device starts after unexpected power down Backup Data finished to data backup during average operating current;Δ V is the first energy storage device two ends when fully charged Voltage V1Voltage V when can not drive inverter with it2Between voltage difference;T for the first energy storage device two ends voltage from V1 It is reduced to V2Time used;C0Residual charge amount during inverter can not be driven for the first energy storage device.
2. power supply module according to claim 1, it is characterised in that the electronic switch is electrically connected at the first energy storage dress Put between inverter.
3. power supply module according to claim 1, it is characterised in that the motherboard power supply interface is ATX power interfaces;Institute Voltage transformation module is stated to be made up of low pressure difference linear voltage regulator and/or dc-dc.
4. power supply module according to claim 1, it is characterised in that in the motherboard power supply interface and voltage transformation module Between second energy storage device also in parallel, the capacitance of second energy storage device is more than or equal to first energy storage dress The capacitance put.
5. power supply module according to claim 1, it is characterised in that also including respectively with the voltage transformation module and electricity The controller voltage output interface that source control module is electrically connected with, to receive the interruption letter sent by power-supply controller of electric module Number, and will be provided by the direct current after voltage transformation module conversion to data cut-off protection device.
6. power supply module according to claim 4, it is characterised in that first energy storage device and the second energy storage device bag Some super capacitor groups are included, the super capacitor group is in series by some super capacitors.
7. power supply module according to any one of claim 1 to 6, it is characterised in that the electronic switch includes MOS Pipe, relay, triode, IGBT pipes or thyratron transistor.
8. a kind of storage system, including some data cut-off protection devices, the data cut-off protection device include controller, with The connected some volatile memory of controller and some nonvolatile memories, and be connected with controller and at least with main frame Carry out the interface module of data and signal transmission;
Characterized in that, the storage system also includes a power supply module as claimed in any of claims 1 to 7 in one of claims, The power supply module is electrically connected with least one data power-down protection apparatus;
When power down occurs for computer, the power supply module provides the supply of electric power of short time for data cut-off protection device, with By the data backup in volatile memory into nonvolatile memory.
9. storage system according to claim 8, it is characterised in that the interface module includes DIMM interfaces or PCI-E Interface.
10. storage system according to claim 8, it is characterised in that the data cut-off protection device also includes and control The controller control source interface that device processed is electrically connected with, the power supply module also include respectively with the voltage transformation module and electricity The controller voltage output interface that source control module is electrically connected with, and modularity wire assembly;
The controller voltage output interface can carry out power supply by modularity wire assembly and controller control source interface And the transmission of control signal.
11. storage system according to claim 10, it is characterised in that the storage system is fallen including at least two data Electrical protective device, each data cut-off protection device by respective controller control source interface and modularity wire assembly simultaneously It is coupled to the controller voltage output interface of power supply module.
12. storage system according to claim 10, it is characterised in that the data cut-off protection device also includes setting Low pressure difference linearity voltage stabilizing between controller control source interface and controller, volatile memory and nonvolatile memory Device.
13. storage system according to claim 8, it is characterised in that the power supply module also includes and power supply mould The connected warning device of block, the energy supply control module includes a memory module;
The memory module is configured as preserving the storage of the volatile memory and nonvolatile memory in access computer Medium configuration parameter, and the first energy storage device capacitance configuration parameter;
When computer power-on self-test, storage medium configuration parameter is compared with capacitance configuration parameter, if capacitance is matched somebody with somebody When putting parameter and being unsatisfactory for storage medium configuration parameter requirement, energy supply control module is sent to warning device enables signal to drive State warning device;
The warning device includes buzzer, LED, and the memory module includes E2PROM, ROM, the controller include FPGA or Person ASIC, the volatile memory is DRAM, and the nonvolatile memory includes nand flash memory and/or phase transition storage.
CN201410037182.XA 2014-01-26 2014-01-26 A kind of power supply module and storage system Active CN103744803B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410037182.XA CN103744803B (en) 2014-01-26 2014-01-26 A kind of power supply module and storage system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410037182.XA CN103744803B (en) 2014-01-26 2014-01-26 A kind of power supply module and storage system

Publications (2)

Publication Number Publication Date
CN103744803A CN103744803A (en) 2014-04-23
CN103744803B true CN103744803B (en) 2017-08-25

Family

ID=50501821

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410037182.XA Active CN103744803B (en) 2014-01-26 2014-01-26 A kind of power supply module and storage system

Country Status (1)

Country Link
CN (1) CN103744803B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106708153B (en) * 2017-03-08 2019-03-12 长江存储科技有限责任公司 A kind of high bandwidth low pressure difference linear voltage regulator
CN108153538A (en) * 2017-12-26 2018-06-12 郑州云海信息技术有限公司 A kind of isomery storage device and method based on phase transition storage
CN108304059B (en) * 2018-02-26 2020-02-07 北京环境特性研究所 Automatic shutdown system and method for abnormal power failure of computer
CN108470271A (en) * 2018-03-08 2018-08-31 北京华通天畅工程监理咨询有限公司 A kind of engineering project total management system
JP2020013271A (en) * 2018-07-17 2020-01-23 キオクシア株式会社 Power supply device, power supply control method, and storage device
CN109683550A (en) * 2018-12-21 2019-04-26 济南浪潮高新科技投资发展有限公司 A kind of power on/off system and method
TWI710885B (en) 2019-05-07 2020-11-21 宏碁股份有限公司 Power supply device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201097308Y (en) * 2007-10-30 2008-08-06 李全忠 Intelligent 3-in-1 computer power
CN101403941A (en) * 2008-11-05 2009-04-08 东莞市金翔电器设备有限公司 Intelligent computer uninterruptable power supply method
CN101630293A (en) * 2009-07-23 2010-01-20 成都市华为赛门铁克科技有限公司 Data protection method, power-fail protection device and storage device
CN202513599U (en) * 2011-12-30 2012-10-31 珠海艾派克微电子有限公司 Charging circuit, memory chip and consumable container

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5962101B2 (en) * 2012-03-19 2016-08-03 富士通株式会社 Backup power supply device, power supply system, computer system, power control method for computer system, and power control program

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201097308Y (en) * 2007-10-30 2008-08-06 李全忠 Intelligent 3-in-1 computer power
CN101403941A (en) * 2008-11-05 2009-04-08 东莞市金翔电器设备有限公司 Intelligent computer uninterruptable power supply method
CN101630293A (en) * 2009-07-23 2010-01-20 成都市华为赛门铁克科技有限公司 Data protection method, power-fail protection device and storage device
CN202513599U (en) * 2011-12-30 2012-10-31 珠海艾派克微电子有限公司 Charging circuit, memory chip and consumable container

Also Published As

Publication number Publication date
CN103744803A (en) 2014-04-23

Similar Documents

Publication Publication Date Title
CN103744803B (en) A kind of power supply module and storage system
US9269437B2 (en) Isolation switching for backup memory
CN1941542A (en) Power-supplying circuit
CN103777537B (en) A kind of low power consumpting controling circuit and storage device
CN104715794B (en) Voltage regulator, Memory Controller and its method of supplying operating voltage
CN103176883A (en) Condition monitoring system of solid state disk
CN103970485A (en) Nonvolatile memory extending device, memory array and computer device
CN102880269B (en) Internal memory power supply system
US9984762B1 (en) Cascaded E-fuse switch circuits to control data backup in a storage device
CN101907914A (en) Computer power starting signal control signal
CN101499313A (en) Method, equipment and memory system for guaranteeing data security
CN102789264A (en) Mainboard of computer equipment
CN202929610U (en) External storage device
CN103092300A (en) Internal storage power supply control circuit
CN111475113A (en) Large-capacity storage blade based on FPGA and RAID technology and access method
CN208239938U (en) A kind of computer motherboard circuit
CN111090325A (en) Hot standby power switching system based on storage system
CN201754255U (en) Computer motherboard, storage device and computer motherboard with storage device
CN208548147U (en) Four-way solid state hard disk and solid state hard disk system based on PCI-E interface
CN201607685U (en) Hard disk storage device containing stand-by power supply
CN111406254A (en) Configurable data refresh from volatile memory to non-volatile memory
CN103176583A (en) Internal memory power supply system
CN102890553A (en) Memory and memory power supply system with same
CN210402264U (en) Power-down protection circuit and device for rail transit server
CN108966044B (en) Power failure protection circuit and method of wireless router and wireless router

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 214135 WUXI, JIANGSU PROVINCE TO: 214073 WUXI, JIANGSU PROVINCE

C53 Correction of patent for invention or patent application
CB02 Change of applicant information

Address after: E science and Technology Park Building No. 20 Liye Sensor Network University District of Wuxi city of Wuxi province Jiangsu Qingyuan Road 214073 No. 210

Applicant after: Wuxi Yundong Technology Development Co., Ltd.

Address before: Block C No. 18 national software park, whale 214135 in Jiangsu province Wuxi City District Zhenze Road Building 4 floor

Applicant before: Wuxi Yundong Technology Development Co., Ltd.

GR01 Patent grant
GR01 Patent grant