CN211426669U - Device for monitoring power cable aging - Google Patents
Device for monitoring power cable aging Download PDFInfo
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- CN211426669U CN211426669U CN201922193716.9U CN201922193716U CN211426669U CN 211426669 U CN211426669 U CN 211426669U CN 201922193716 U CN201922193716 U CN 201922193716U CN 211426669 U CN211426669 U CN 211426669U
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Abstract
The utility model provides a device that monitoring power cable is ageing, through set up the voltage sensor respectively at power supply board and power load board both sides, acquire the voltage difference of power cable both sides, according to the size of voltage difference, judge whether power cable is ageing, can be in the ageing condition of power cable real-time supervision power cable in power cable working process, in time discover the ageing problem of power cable, avoid appearing the condition that the system is down or the integrated circuit board damages, and still include temperature sensor in this scheme, through the temperature condition of real-time supervision power cable, in time discover because power cable is ageing to lead to the power cable temperature to rise, further guarantee the effect of the ageing monitoring of power cable.
Description
Technical Field
The utility model belongs to the technical field of the cable monitoring and specifically relates to a device that monitoring power cable is ageing is related to.
Background
Nowadays, the server architecture is becoming large and high-density performance is sought, and many system daughter boards are extended inside the server to enhance performance, so that the system management inside the server is also becoming complex, and the overall system power consumption of the server is becoming higher and higher. In server system design, the selection of power connectors/power cables is an important part of the overall power supply topology and power connection mode.
The architecture planning of the power supply topology of the current common server only monitors the voltage part of the power supply, and uses a Baseboard Management Controller (BMC) as a main control end to be connected to a power supply module through an I2C bus interface of the BMC, such as an overcurrent protection module and a PSU power module, so as to directly read the value of the voltage, and as long as the voltage source has no problem, no warning can be sent, and the voltage drop to the device end is often ignored. The existing server architecture is usually only used for monitoring a power supply and a power supply conversion control chip, and whether the voltage of the whole system has a problem or not is monitored.
However, power connection cables of each board card in the system, such as a main board/a hard disk board/a fan board, and a power supply board are not monitored, on one hand, when the running time of the server is long and the server is in a high-load condition for a long time, the connected power cables and the power connectors are aged, the system is down if the running time is short, and the board cards are burnt out if the running time is long; on the other hand because the space is limited in high density 1U 2U's the system, the cable of power cable is walked the line mode and is made the power cable all have the bending crease of certain degree, leads to the inside impedance of power cable to rise, also can lead to the life-span of power cable to shorten like this, can not see in the short time, but long-time operation goes out the problem very easily, is unfavorable for in time discovering the power cable condition of ageing, avoids leading to the condition that the system is down or the integrated circuit board damaged.
Disclosure of Invention
The utility model discloses a solve the problem that exists among the prior art, the innovation provides a device that monitoring power cable is ageing, can in time discover the ageing problem of power cable in the ageing condition of power cable real-time supervision power cable in the power cable working process, avoids appearing the condition that the system is shut down or the integrated circuit board damages.
The utility model discloses the first aspect provides an ageing device of monitoring power cable, include: the power supply board comprises a first power connector, a first voltage sensor, a current detection module, a first power end and a second power end, wherein the first power end is a power supply end of the power supply board, the second power end is a power output end of the server power module, the power load board comprises a second power connector and a second voltage sensor, the first power end of the power supply board is connected with the first power connector, the first power connector is connected with the second power connector through the power cable, the second power connector is connected with a power interface of the power load board, one path of a sensing end of the first voltage sensor is connected with the first power connector, the other path of the sensing end of the first voltage sensor is connected with the first power connector, a data transmitting end of the first voltage sensor is connected with a data receiving end of the BMC, one path of one end of the current detection module is connected with a first power supply end of the power supply board, the other path of the current detection module is connected with a first power connector, the other end of the current detection module is connected with a second power end, and a data sending end of the current detection module is connected with a data receiving end of the BMC; one path of the sensing end of the second voltage sensor is connected with the second power connector, the other path of the sensing end of the second voltage sensor is connected with a power interface in the power load board, and the data sending end of the second voltage sensor is connected with the data receiving end of the BMC.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the number of the power cables, the number of the second power connectors, and the number of the power load boards are correspondingly the same.
With reference to the first aspect, in a second possible implementation manner of the first aspect, the current detection module is a hot plug controller with a built-in PMBus interface.
With reference to the first aspect, in a third possible implementation manner of the first aspect, the system further includes a temperature sensor, where a sensing end of the temperature sensor is connected to the power cable, and the data sending end is connected to the BMC receiving end.
Furthermore, the connection mode of the temperature sensor and the power cable is that the temperature sensor is adhered to the outer side of the cable.
With reference to the first aspect, in a fourth possible implementation manner of the first aspect, the system further includes an alarm module, and a control signal input end of the alarm module is connected to the BMC.
Further, the alarm module is an indicator light or an alarm.
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 innovation provides a device that monitoring power cable is ageing, can in time discover the ageing problem of power cable in the ageing condition of power cable real-time supervision power cable in the power cable working process, avoids appearing the condition that the system is shut down or the integrated circuit board damages.
The utility model discloses still include among the technical scheme that current detection module chooses for use the hot plug controller of built-in PMBus interface, not only realized acquireing of electric current data, but also realized the overcurrent protection to power supply board.
The utility model discloses still include temperature sensor among the technical scheme, through the temperature condition of real-time supervision power cable, in time discover to lead to the power cable temperature to rise because power cable is ageing, further guarantee the effect of the ageing monitoring of power cable.
The utility model discloses still include alarm module among the technical scheme, through pilot lamp or alarm to the staff in time finds directly perceived because the ageing problem of power cable, avoids appearing the condition that the system crashed or the integrated circuit board damaged.
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 an apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second device according to an 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 present invention provides a device for monitoring power cable aging, for clarity of description, the present embodiment includes a power cable and a power load board, wherein the power load board is illustrated by taking a hard disk board as an example, and includes: the method comprises the following steps: the BMC1, the power supply board (PDB)2, the power load board (hard disk board) 3, and the power cable 4, where the power supply board 2 includes a first power connector 21, a first voltage sensor 22, a current detection module 23, a first power terminal 24, and a second power terminal 25, where the first power terminal 24 is a power supply terminal of the power supply board 2, the second power terminal 25 is a power output terminal of the server power module, the power load board 3 includes a second power connector 31 and a second voltage sensor 32, the first power terminal 24 of the power supply board 2 is connected to the first power connector 21, the first power connector 21 is connected to the second power connector 31 through the power cable 4, the second power connector 31 is connected to the power interface 33 of the power load board 3, one path of a sensing terminal of the first voltage sensor 22 is connected to the first power connector 21, the other path is connected to the first power terminal 24 of the power supply board 2, the data transmitting end of the first voltage sensor 22 is connected with the data receiving end of the BMC1, one path of one end of the current detection module 23 is connected with the first power end 24 of the power supply board 2, the other path of the one end of the current detection module is connected with the first power connector 21, the other end of the current detection module is connected with the second power end 25, and the data transmitting end of the current detection module 23 is connected with the data receiving end of the BMC 1; one path of the sensing end of the second voltage sensor 32 is connected to the second power connector 31, the other path is connected to the power interface of the power load board 3, and the data sending end of the second voltage sensor 32 is connected to the data receiving end of the BMC 1.
Wherein, the number of the power cables 4, the number of the second power connectors 31 and the number of the power load boards 3 are the same.
In the present embodiment, the power voltage of the server power module may be 12V, 5V or 3.3V, and the voltage is 12V, and the power load board is a Hard Disk Drive (HDD), for example, wherein the first power end 23 is a power supply end of the power supply board 2, i.e., P12V _ PDB, the second power end 25 is a power output end of the server power module, i.e., P12V _ PSU, the first voltage sensor 22 and the second voltage sensor 32 are used to obtain the voltage of the power supply board 2 (i.e., the first power end voltage, P12V _ PDB) and the voltage of the power load board 3 (P12V _ HDD), and a voltage difference can be obtained by comparing the two voltages, and the current data of the current detection module 23 is read through the I2C interface of the BMC, so as to obtain the current value (P12V)current). Subtract the voltage difference of P12V _ HDD from P12V _ PDB by the current value (P12V)current) The current impedance (R) on the power cable can be obtainedcable) BMC1 monitors current impedance (R)cable) Numerical values. The formula is as follows: rcable＝(P12V_PDB-P12V_HDD)/P12VcurrentWhen the power cable ages, the current impedance on the power cable is increased, and the P12V _ PDB minus the voltage difference of the P12V _ HDD ((P12V _ PDB-P12V _ HDD)) read by the BMC1 at the same current is larger, so that by setting a corresponding current value, when the BMC1 reads that the voltage difference between the first power connector 21 and the second power connector 31 exceeds a preset value, the power cable 4 is considered to be aged, and the purpose of monitoring the aging of the power cable in real time is achieved.
In the scheme, the current detection module 23 selects a hot plug controller with a built-in PMBus interface, the model of the hot plug controller can be ADM1278 or other models, and the scheme is not limited.
Preferably, the monitoring device further comprises an alarm module 5, wherein a control signal input end of the alarm module 5 is connected with the B MC1, and the alarm module 5 is an indicator light or an alarm. The BMC sends a control signal to control the working state of the indicator light or the alarm through a GPIO (general-purpose input/output).
The utility model relates to an ageing device of monitoring power cable can in time discover the ageing problem of power cable in the ageing condition of power cable real-time supervision power cable in the power cable working process, avoids appearing the condition that the system is shut down or the integrated circuit board damages.
The utility model discloses still include alarm module among the technical scheme, through pilot lamp or alarm to the staff in time finds directly perceived because the ageing problem of power cable, avoids appearing the condition that the system crashed or the integrated circuit board damaged.
Example two
As shown in fig. 2, the present technical solution further provides a device for monitoring aging of a power cable, which is different from the first embodiment, the device further includes a temperature sensor 6, a sensing end of the temperature sensor 6 is connected to the power cable 4, and a data sending end is connected to a receiving end of the BMC 1. The connection mode of the temperature sensor 6 and the power cable 4 can be that the temperature sensor 6 is adhered to the outer side of the power cable 4.
The temperature sensor model in this scheme can be ADM1032, also can adjust according to actual conditions, and this scheme does not do the restriction here, through the temperature sensor temperature of monitoring the power cable, when the power cable is ageing, its temperature also can generate heat because of the impedance risees and lead to the power cable temperature to rise, so BMC also can judge through temperature sensor whether the power cable is overheated.
The utility model discloses through the temperature condition of real-time supervision power cable among the technical scheme, in time discover because power cable leads to power cable temperature rising because power cable is ageing, further guarantee the effect of the ageing monitoring of power cable.
Preferably, the monitoring device further comprises an alarm module 5, wherein a control signal input end of the alarm module 5 is connected with the B MC1, and the alarm module 5 is an indicator light or an alarm. The BMC sends a control signal to control the working state of the indicator light or the alarm through a GPIO (general-purpose input/output).
The utility model discloses through pilot lamp or alarm among the technical scheme to the staff in time finds directly perceived because the ageing problem of power cable, avoids appearing the condition that the system shut down or integrated circuit board damaged.
The number of the power cables to be tested and the type of the power load board are not limited in the scheme, a plurality of power cables and a plurality of power load boards connected with the power cables can be monitored simultaneously, and the power load boards can be fan boards, main boards, hard disk boards and the like.
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 (7)
1. An apparatus for monitoring power cable aging, comprising: the power supply board comprises a first power connector, a first voltage sensor, a current detection module, a first power end and a second power end, wherein the first power end is a power supply end of the power supply board, the second power end is a power output end of the server power module, the power load board comprises a second power connector and a second voltage sensor, the first power end of the power supply board is connected with the first power connector, the first power connector is connected with the second power connector through the power cable, the second power connector is connected with a power interface of the power load board, one path of a sensing end of the first voltage sensor is connected with the first power connector, the other path of the sensing end of the first voltage sensor is connected with the first power connector, a data transmitting end of the first voltage sensor is connected with a data receiving end of the BMC, one path of one end of the current detection module is connected with a first power supply end of the power supply board, the other path of the current detection module is connected with a first power connector, the other end of the current detection module is connected with a second power end, and a data sending end of the current detection module is connected with a data receiving end of the BMC; one path of the sensing end of the second voltage sensor is connected with the second power connector, the other path of the sensing end of the second voltage sensor is connected with a power interface in the power load board, and the data sending end of the second voltage sensor is connected with the data receiving end of the BMC.
2. The apparatus of claim 1, wherein the number of power cables, the number of second power connectors, and the number of power load boards are the same.
3. The apparatus of claim 1, wherein the current detection module is a hot plug controller with a built-in PMBus interface.
4. The device for monitoring the aging of the power cable as claimed in claim 1, further comprising a temperature sensor, wherein the sensing end of the temperature sensor is connected with the power cable, and the data sending end is connected with the BMC receiving end.
5. The device for monitoring the aging of the power cable as claimed in claim 4, wherein the temperature sensor is connected with the power cable in a manner that the temperature sensor is adhered to the outer side of the power cable.
6. The device for monitoring the aging of the power cable according to any one of claims 1 to 5, further comprising an alarm module, wherein a control signal input end of the alarm module is connected with the BMC.
7. The device for monitoring the aging of the power cable according to claim 6, wherein the alarm module is an indicator light or an alarm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922193716.9U CN211426669U (en) | 2019-12-10 | 2019-12-10 | Device for monitoring power cable aging |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922193716.9U CN211426669U (en) | 2019-12-10 | 2019-12-10 | Device for monitoring power cable aging |
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| CN211426669U true CN211426669U (en) | 2020-09-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325182A (en) * | 2021-12-17 | 2022-04-12 | 西南交通大学 | Evaluation method for thermal-oxidative aging degree of 10kVXLPE cable based on temperature-electricity change rate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325182A (en) * | 2021-12-17 | 2022-04-12 | 西南交通大学 | Evaluation method for thermal-oxidative aging degree of 10kVXLPE cable based on temperature-electricity change rate |
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