CN210245073U

CN210245073U - SAS/SATA hard disk backboard

Info

Publication number: CN210245073U
Application number: CN201921624401.9U
Authority: CN
Inventors: Lihua Zhou; 周丽华
Original assignee: Suzhou Inspur Intelligent Technology Co Ltd
Current assignee: Suzhou Inspur Intelligent Technology Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-04-03
Anticipated expiration: 2029-09-27

Abstract

The utility model proposes a SAS/SATA hard disk backplane, which includes: a first signal connector, a hard disk connector module, a power supply module, and a hard disk indicator light module. The hard disk connector module includes a first hard disk connector and a second hard disk connector. The hard disk connector, on the one hand, the two hard disks are arranged vertically, which can save the structure space, improve the market competitiveness of similar products, and enrich the product types of the hard disk backplane. On the other hand, the indicator lights in the hard disk indicator circuit are powered by 12V voltage. , to improve the brightness of the hard disk indicator light, so that the hard disk status can be judged in time through the change of the indicator light, and the failure or abnormal situation of the hard disk can be found in time.

Description

SAS/SATA hard disk backboard

Technical Field

The utility model belongs to the technical field of hard disk backplate technique and specifically relates to a SAS/SATA hard disk backplate is related to.

Background

A requirement for a two-way hardware server of a purley platform is generated in monitoring ISVs (Independent Software developers, particularly enterprises specially engaged in development, production, sales and service of Software) and internet manufacturers, and the demand is gradually increased, so that the required product form is rich.

At present, a transversely-arranged hard disk back plate comprising two SAS/SATA interfaces is provided, but a vertically-arranged hard disk back plate comprising two SAS/SATA interfaces is not provided, because of the change of the structure size, the existing circuit and material layout design cannot correspond to the vertically-arranged hard disk back plate comprising two SAS/SATA interfaces, the design needs to be carried out again, the brightness of the existing hard disk indicating lamp is insufficient, the hard disk state is difficult to judge through the indicating lamp in time, and the fault or the abnormity cannot be found in time easily.

Disclosure of Invention

The utility model discloses a solve the problem that exists among the SAS/SATA hard disk backplate prior art, the novelty provides a SAS/SATA hard disk backplate, can be applicable to the hard disk backplate including two SAS/SATA interfaces of vertical range, richen the product kind of hard disk backplate, improved the luminance of hard disk pilot lamp moreover to in time judge the hard disk state through the change of pilot lamp, in time discover the trouble or the abnormal conditions of hard disk.

An aspect of the utility model provides a SAS/SATA hard disk backplate, include: the hard disk indicator lamp comprises a first signal connector, a hard disk connector module, a power supply module and a hard disk indicator lamp module, wherein the hard disk connector module comprises a first hard disk connector and a second hard disk connector, the first hard disk connector and the second hard disk connector are vertically arranged, the output end of the first signal connector is connected with the input end of the first hard disk connector and the input end of the second hard disk connector, the power supply module supplies power to the first hard disk connector, the second hard disk connector and the hard disk indicator lamp module, the hard disk indicator lamp module comprises a programmable logic controller and an indicator lamp circuit, the programmable logic controller lights according to an SGPIO signal control indicator lamp circuit, and the indicator lamp power supply voltage is 12V.

In combination with the aspect, in a first possible implementation manner of the aspect, the power module includes a first voltage conversion chip and a second voltage conversion chip, the first voltage conversion chip converts a 12V voltage into a 5V voltage, and an output end of the first voltage conversion chip is connected to a 5V power input end of the first hard disk connector and a 5V power input end of the second hard disk connector respectively; the second voltage conversion chip converts 12V voltage into 3.3V voltage, and the power output end of the second voltage conversion chip is connected with the 3.3V power input end of the hard disk indicator lamp module.

In a second possible implementation manner of the aspect, the indicator lamp circuit includes a first dual-channel MOS chip, a second dual-channel MOS chip, a dual-color LED lamp, a pull-up resistor R1, a pull-up resistor R2, a capacitor C1, a capacitor C2, a current-limiting resistor R3, a current-limiting resistor R4, a current-limiting resistor R5, and a current-limiting resistor R6, where a pin 1 of the first dual-channel MOS chip is grounded, a pin 2 is connected to a first signal output terminal of the programmable logic device, a pin 3 is connected to a cathode of a first LED in the dual-color LED lamp, an anode of the first LED in the dual-color LED lamp is connected to a power supply P12V through the current-limiting resistor R3 and the current-limiting resistor R4 connected in parallel, a pin 4 is grounded, one pin 5 is connected to a power supply P3V3 through the pull-up resistor R1, the other pin is grounded through a capacitor C1, one pin 6 is connected to the power supply P3V3 through the pull-up resistor R1, and the other; the pin 1 of the second double-path MOS chip is grounded, the pin 2 is connected with a second signal output end of the programmable logic device, the pin 3 is connected with the cathode of a second LED in the double-color LED lamp, the anode of the second LED in the double-color LED lamp is connected with a power supply P12V through a current limiting resistor R5 and a current limiting resistor R6 which are connected in parallel, the pin 4 is grounded, one path of the pin 5 is connected with the power supply P3V3 through a pull-up resistor R2, the other path is grounded through a capacitor C2, one path of the pin 6 is connected with the power supply P3V3 through a pull-up resistor R2, and the other path is grounded through a capacitor C2.

Furthermore, the first dual-channel MOS chip and the second dual-channel MOS chip are both dual-channel NMOS chips.

In combination with the aspect, in a third possible implementation manner of the aspect, the hard disk drive further includes a first power protection module and a second power protection module, an input end of the first power protection module is connected to a 12V power output end of the power module, and output ends of the first power protection module are respectively connected to a 12V power input end of the first hard disk connector and a 12V power input end of the second hard disk connector; the input end of the second power supply protection module is connected with the 5V power supply output end of the first power supply conversion chip, and the output end of the second power supply protection module is respectively connected with the 5V power supply input end of the first hard disk connector and the 5V power supply input end of the second hard disk connector.

Furthermore, the first power protection module comprises a first power protection chip and a second power protection chip, wherein the input end of the first power protection chip is connected with the 12V power output end of the power module, and the output end of the first power protection chip is connected with the 12V power input end of the first hard disk connector; the input end of the second power supply protection chip is connected with the 12V power supply output end of the power supply module, and the output end of the second power supply protection chip is connected with the 12V power supply input end of the second hard disk connector; the second power supply protection module comprises a third power supply protection chip and a fourth power supply protection chip, wherein the input end of the third power supply protection chip is connected with the 5V power supply output end of the first power supply conversion chip, and the output end of the third power supply protection chip is connected with the 5V power supply input end of the first hard disk connector; the input end of the fourth power protection chip is connected with the 5V power output end of the first power conversion chip, and the output end of the fourth power protection chip is connected with the 5V power input end of the second hard disk connector.

In combination with this aspect, in a fourth possible implementation manner of this aspect, the hard disk indicator light module further includes an active clock chip, and an output end of the active clock chip is connected to an input end of the programmable logic controller.

Further, still include temperature sensor, temperature sensor's input and hard disk are connected, and the output passes through the cable and is connected with the mainboard.

In a fifth possible implementation manner of this aspect, in combination with this aspect, the programmable logic controller is a CPLD or an FPGA.

The utility model discloses a technical scheme include following technological effect:

the utility model discloses a solve the problem that exists among the prior art, the novelty has provided a SAS SATA hard disk backplate, enriches the product kind of hard disk backplate, satisfies customer's diversification and demand, has improved the luminance of hard disk pilot lamp moreover to in time judge the hard disk state through the change of pilot lamp, in time discover the trouble or the abnormal conditions of hard disk.

On the other hand, the hard disk is transversely placed, and the space below two hard disks is extravagant, still needs to use the emulation of hard disk bracket, and the increase cost leads to X16's trench not to have the space to place outer plug-in card simultaneously, leads to the wasting of resources, the utility model discloses two hard disks pass through vertical arrangement among the technical scheme, can save structure space, can the horizontal space of make full use of, place more outer plug-in card modules or hard disks, under the case is the 4U space of standard and the long wide fixed condition, the limited space of make full use of does higher configuration, can improve the market competition of like product.

The utility model discloses still through power protection module, realize the function of hard disk hot plug, can carry out overcurrent protection to the hard disk.

The utility model discloses still through the pilot lamp circuit, through the conversion of two-stage MOS pipe in the MOS chip, guarantee that the logic level is unanimous, adopt double-circuit NMOS chip to carry out the logic level conversion, saved the area of circuit board, the pilot lamp adopts double-colored LED lamp, can instruct trouble and locating information simultaneously to and light simultaneously and the combination of extinguishing through double-colored LED lamp, indicate more hard disk state information. The double-color LED lamp adopts a mode of connecting two current-limiting resistors in parallel, so that the current can be further increased, and the brightness of the indicator lamp can be adjusted.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

Drawings

For a clear explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for a person skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a third embodiment of the present invention.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily limit the invention.

Example one

As shown in fig. 1, the utility model provides a SAS/SATA hard disk backplate 1, include: the hard disk indicator lamp comprises a first signal connector 11, a hard disk connector module 12, a power supply module 13 and a hard disk indicator lamp module 14, wherein the hard disk connector module 12 comprises a first hard disk connector 121 and a second hard disk connector 122, the first hard disk connector 121 and the second hard disk connector 122 are vertically arranged, the output end of the first signal connector 11 is respectively connected with the input end of the first hard disk connector 121 and the input end of the second hard disk connector 122, the power supply module 13 supplies power to the first hard disk connector 121, the second hard disk connector 122 and the hard disk indicator lamp module 14, the hard disk indicator lamp module 14 comprises a programmable logic controller 141 and an indicator lamp circuit 142, the programmable logic controller 141 controls the indicator lamp circuit 142 to light according to an SGPIO signal, and the power supply voltage of the indicator lamp is 12V.

The first signal connector 11 is an SATA connector, and is connected to the miniSAS connector 31 of the second board card (for example, an SAS expander card) through an SAS cable so as to transmit SAS/SATA signals, and the first hard disk connector 121 and the second hard disk connector 122 both use SAS and SATA compatible connectors so as to support two 2.5-inch SAS disks or SATA disks.

The power module 13 includes a first voltage conversion chip 131 and a second voltage conversion chip 132, the first voltage conversion chip 131 converts 12V voltage into 5V voltage, and an output terminal of the first voltage conversion chip 131 is connected to a 5V power input terminal of the first hard disk connector 121 and a 5V power input terminal of the second hard disk connector 122 respectively; the second voltage conversion chip 132 converts the 12V voltage into a 3.3V voltage, and the power output terminal of the second voltage conversion chip 132 is connected to the 3.3V power input terminal of the hard disk indicator light module 14.

Wherein, power module 13 still includes P12V voltage output submodule 133, and the P12V power of P12V voltage output submodule 133 can be obtained through integrated circuit board one 2, and first voltage conversion chip 131 model can be MPQ8632GLE-12-Z, and second voltage conversion chip model can be MPQ8632GLE-4-Z, also can be other models, the utility model discloses do not do the restriction here.

The utility model discloses in, programmable logic controller 141 can be CPLD or FPGA, but considers factors such as cost, developer's custom, prefers CPLD. The power output end of the second power conversion chip 132 is connected to the power input end of the CPLD to provide power for the CPLD. And the CPLD processes the SGPIO signal, and controls the LED to light up after analysis. The hard disk indicator light module 14 further includes an active clock chip 143, an output end of the active clock chip 143 is connected to an input end of the programmable logic controller 141, the active clock chip 143 is located away from a power chip and a hard disk, and other devices which generate heat seriously, the model of the active clock chip 143 may be X1G004171007700, and a 25MHz clock is output, so as to provide a precision clock for the programmable logic controller 141.

The embodiment of the utility model provides a still include temperature sensor 15, temperature sensor 15's input and hard disk connection, the output passes through cable and mainboard connection. The temperature sensor 15 is arranged at a position where the temperature sensor 15 needs to measure the temperature near the hard disk, the temperature sensor 15 is arranged at a ventilation position near the hard disk, the distance from the two hard disks is the same, the mainboard 4 is connected to the first signal connector 11 on the hard disk backboard 1 through a cable, the temperature sensor 15 and the CPLD on the hard disk backboard 1 are connected with the mainboard 4 through an I2C bus, and the temperature sensor 15 and the CPLD are directly controlled by the mainboard 4 and used for reading the temperature information of the temperature sensor 15 and the firmware information of the CPLD. The utility model discloses well temperature sensor 15 chips adopts the model can be EMC1413, has high accuracy, low-cost advantage.

Example two

As shown in fig. 2, in the technical solution of the present invention, the indicator circuit 142 includes a first dual-channel MOS chip 1421, a second dual-channel MOS chip 1422, a dual-color LED lamp 1423, a pull-up resistor R1, a pull-up resistor R2, a capacitor C1, a capacitor C2, a current-limiting resistor R3, a current-limiting resistor R4, a current-limiting resistor R5, and a current-limiting resistor R6, the pin 1 of the first dual-channel MOS chip 1421 is grounded, the pin 2 is connected to the first signal output terminal of the programmable logic device 141, the pin 3 is connected to the negative electrode of the first LED in the dual-color LED lamp 1423, the positive electrode of the first LED in the LED lamp 1423 is connected to the power supply P12V through the parallel current-limiting resistor R3 and the current-limiting resistor R4, the pin 4 is grounded, one of the pins 5 is connected to the power supply P3V3 through the pull-up resistor R1, the other is grounded through the capacitor C1, one of the pin 6 is connected to the power supply P3V3 through the; pin 1 of the second dual-channel MOS chip 1422 is grounded, pin 2 is connected to a second signal output terminal of the programmable logic device 141, pin 3 is connected to a cathode of a second LED in the dual-color LED lamp 1423, an anode of the second LED in the dual-color LED lamp 1423 is connected to the power supply P12V through a current limiting resistor R5 and a current limiting resistor R6 which are connected in parallel, pin 4 is grounded, one path of pin 5 is connected to the power supply P3V3 through a pull-up resistor R2, the other path is grounded through a capacitor C2, one path of pin 6 is connected to the power supply P3V3 through a pull-up resistor R2, and the other path is grounded through a capacitor C2.

Wherein, LED _ LOC _ N <0> represents the hard disk location indicator signal that CPLD sent, LED _ ERR _ N <0> represents the hard disk fault signal that CPLD sent, first double-circuit MOS chip 1421, second double-circuit MOS chip 1422 are double-circuit NMOS chip, its specific model can be 2N7002BKS, double-colored LED lamp 1423 model can be 19-223/BHR6C-A30/2T, also can be other models, the utility model discloses do not do the restriction here. The resistance values of the pull-up resistor R1 and the pull-up resistor R2 in the circuit can be 4.7 Komega, and can also be adjusted according to the actual condition; the resistance values of the current limiting resistor R3 and the current limiting resistor R4 are the same and can be 2.2K omega, and can also be adjusted according to the actual situation, and the resistance values of the current limiting resistor R5 and the current limiting resistor R6 are the same and can be 3.3K omega, and can also be adjusted according to the actual situation; the sizes of the capacitor C1 and the capacitor C2 are both 0.1uF, and can be adjusted according to actual conditions; the first LED lamp in the dual-color LED lamp 1423 is blue, and the current thereof is (12V-3.3V)/2.2K Ω × 2 ═ 7.9mA under the selection of the resistor and the capacitor according to the embodiment of the present invention; first LED lamp, for red, under the selection of the embodiment of the present invention resistance and electric capacity, its electric current is (12V-2V)/3.3K Ω 2 ═ 6.06 mA.

The embodiment of the utility model provides an in still include HDD _ GND signal, indicate more hard disk state information, resistance R7 is zero resistance.

EXAMPLE III

As shown in fig. 3, the embodiment of the present invention is different from the first embodiment in that the present invention further includes a first power protection module 161 and a second power protection module 162, wherein an input end of the first power protection module 161 is connected to a 12V power output end of the P12V voltage output submodule 133, and an output end of the first power protection module 161 is connected to a 12V power input end of the first hard disk connector 121 and a 12V power input end of the second hard disk connector 122, respectively; the input end of the second power protection module 162 is connected to the 5V power output end of the first power conversion chip 131, and the output end is connected to the 5V power input end of the first hard disk connector 121 and the 5V power input end of the second hard disk connector 122, respectively.

The first power protection module 161 includes a first power protection chip 1611 and a second power protection chip 1612, wherein an input end of the first power protection chip 1611 is connected to a 12V power output end of the P12V voltage output submodule 133, and an output end of the first power protection chip is connected to a 12V power input end of the first hard disk connector 121; the input end of the second power protection chip 1612 is connected with the 12V power output end of the P12V voltage output submodule 133, and the output end of the second power protection chip 1612 is connected with the 12V power input end of the second hard disk connector 122; the second power protection module 152 includes a third power protection chip 1621 and a fourth power protection chip 1622, an input end of the third power protection chip 1621 is connected to the 5V power output end of the first power conversion chip 131, and an output end of the third power protection chip 1621 is connected to the 5V power input end of the first hard disk connector 121; the input end of the fourth power protection chip 1622 is connected to the 5V power output end of the first power conversion chip 131, and the output end is connected to the 5V power input end of the second hard disk connector 122.

The first power protection chip 1611 and the second power protection chip 1612 may be of the TPS259260 type, providing highly integrated hot-swap power management and excellent protection in applications with a 12V load supply voltage, for systems that must provide protection to the voltage bus in the event of a detrimental sustained and transient overload. Inrush current is limited by controlling the output voltage at start-up or hot plug into the hard disk. Third power protection chip 1621, fourth power protection chip 1622, each model TPS259250, provide highly integrated hot swap power management and excellent protection in applications with a 5V load supply voltage for systems that must provide protection to the voltage bus in the event of a detrimental sustained and transient overload. Inrush current is limited by controlling the output voltage at start-up or hot plug into the hard disk.

The utility model discloses a power protection module realizes the function of hard disk hot plug, can carry out overcurrent protection to the hard disk.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims

1. A SAS/SATA hard disk backplane is characterized in that, comprising: a first signal connector, a hard disk connector module, a power supply module, a hard disk indicator light module, and the hard disk connector module includes a first hard disk connector and a first hard disk connector. Two hard disk connectors, the first hard disk connector and the second hard disk connector are arranged vertically, the output end of the first signal connector is respectively connected with the input end of the first hard disk connector and the second hard disk connector The power supply module supplies power to the first hard disk connector, the second hard disk connector, and the hard disk indicator light module, and the hard disk indicator light module includes a programmable logic controller and an indicator light circuit, and the programmable logic The controller controls the indicator light circuit to light up according to the SGPIO signal, wherein the indicator light supply voltage is 12V.

2 . The SAS/SATA hard disk backplane according to claim 1 , wherein the power module comprises a first voltage conversion chip and a second voltage conversion chip, and the first voltage conversion chip converts a 12V voltage into a 5V voltage. 3 . voltage, the output end of the first voltage conversion chip is respectively connected with the 5V power input end of the first hard disk connector and the 5V power input end of the second hard disk connector; the second voltage conversion chip converts the 12V voltage into 3.3 V voltage, the power output end of the second voltage conversion chip is connected to the 3.3V power input end of the hard disk indicator light module.

3. The SAS/SATA hard disk backplane according to claim 1, wherein the indicator circuit comprises a first dual-channel MOS chip, a second dual-channel MOS chip, a dual-color LED lamp, a pull-up resistor R1, an upper Pull-up resistor R2, capacitor C1, capacitor C2, current-limiting resistor R3, current-limiting resistor R4, current-limiting resistor R5, current-limiting resistor R6, pin 1 of the first dual-channel MOS chip is grounded, and pin 2 is connected to programmable The first signal output terminal of the logic device, pin 3 is connected to the negative electrode of the first LED in the bicolor LED lamp, and the positive electrode of the first LED in the bicolor LED lamp is connected to the power supply P12V through the parallel current limiting resistor R3 and current limiting resistor R4, and the lead is connected to the power supply P12V. Pin 4 is grounded, one pin 5 is connected to the power supply P3V3 through the pull-up resistor R1, the other is grounded through the capacitor C1, the pin 6 is connected to the power supply P3V3 through the pull-up resistor R1, and the other is connected to the ground through the capacitor C1; Pin 1 of the dual-channel MOS chip is grounded, pin 2 is connected to the second signal output terminal of the programmable logic device, and pin 3 is connected to the negative electrode of the second LED in the dual-color LED lamp, and the positive electrode of the second LED in the dual-color LED lamp is connected in parallel The current limiting resistor R5 and the current limiting resistor R6 are connected to the power supply P12V, the pin 4 is grounded, the pin 5 is connected to the power supply P3V3 through the pull-up resistor R2, the other is connected to the ground through the capacitor C2, and the pin 6 is connected through the pull-up resistor R2. It is connected to the power supply P3V3, and the other way is grounded through the capacitor C2.

4. The SAS/SATA hard disk backplane according to claim 3, wherein the first dual-channel MOS chip and the second dual-channel MOS chip are both dual-channel NMOS chips.

5 . The SAS/SATA hard disk backplane according to claim 2 , further comprising a first power protection module and a second power protection module, wherein the input end of the first power protection module is connected to the 12V power supply of the power module. 6 . The output end is connected to the 12V power input end of the first hard disk connector and the 12V power input end of the second hard disk connector respectively; the input end of the second power protection module is connected to the 5V power output end of the first power conversion chip and the output terminals are respectively connected to the 5V power input terminal of the first hard disk connector and the 5V power input terminal of the second hard disk connector.

6 . The SAS/SATA hard disk backplane according to claim 5 , wherein the first power protection module comprises a first power protection chip and a second power protection chip, and the input end of the first power protection chip is connected to the input terminal. 7 . The 12V power output terminal of the power module, the output terminal is connected to the 12V power input terminal of the first hard disk connector; the input terminal of the second power protection chip is connected to the 12V power output terminal of the power module, and the output terminal is connected to the 12V power supply terminal of the second hard disk connector a power input terminal; the second power protection module includes a third power protection chip and a fourth power protection chip, the third power protection chip input terminal is connected to the 5V power output terminal of the first power conversion chip, and the output terminal is connected to the first power supply protection chip. The 5V power input terminal of the hard disk connector; the input terminal of the fourth power protection chip is connected to the 5V power output terminal of the first power conversion chip, and the output terminal is connected to the 5V power input terminal of the second hard disk connector.

7. The SAS/SATA hard disk backplane according to claim 1, wherein the hard disk indicator light module further comprises an active clock chip, and an output end of the active clock chip is connected to the programmable logic controller the input terminal.

8 . The SAS/SATA hard disk backplane according to claim 7 , further comprising a temperature sensor, and an output end of the temperature sensor is connected to the motherboard through a cable. 9 .

9 . The SAS/SATA hard disk backplane according to claim 1 , wherein the programmable logic controller is a CPLD or an FPGA. 10 .