CN206773636U - A kind of excessively stream self- recoverage fan back board structure - Google Patents
A kind of excessively stream self- recoverage fan back board structure Download PDFInfo
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- CN206773636U CN206773636U CN201720668610.8U CN201720668610U CN206773636U CN 206773636 U CN206773636 U CN 206773636U CN 201720668610 U CN201720668610 U CN 201720668610U CN 206773636 U CN206773636 U CN 206773636U
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- Prior art keywords
- fan
- mainboard
- fan module
- protection chip
- flow recovery
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- 238000011084 recovery Methods 0.000 claims abstract description 29
- 238000012545 processing Methods 0.000 claims abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Abstract
The utility model discloses a kind of excessively stream self- recoverage fan back board structure, the fan back board structure includes fan module and overcurrent protection chip, wherein can flow recovery protection chip be arranged between mainboard and fan module, mainboard and fan module by can flow recovery protect chip to form current path, the power supply of fan backboard is to connect machine by power supply to be directly obtained by mainboard, come from mainboard power supply first pass around can flow recovery protection chip processing, then by can flow recovery protection chip internal MOS be transferred to fan module, driving power as fan module.The utility model reduces the risk of the infringement to mainboard when fan module short circuit, reduce maintenance cost simultaneously, add fan board reliability design, solve the problems, such as to cause unrepairable to destroy mainboard etc. when fan module short circuit, while to ensure after maintenance personal excludes fan module failure, after need to only server being restarted, fan board can normal work again, maintenance cost is reduced.
Description
Technical field
It the utility model is related to system radiating technical field, and in particular to a kind of excessively stream self- recoverage fan back board structure.
Background technology
To improve whole server reliability and performance, it is necessary to improve the reliability and performance of modules, fan board exists
Ensure that server normal work plays indispensable effect, while the reliability design of fan board has to whole server reliability
Play an important role.
In existing realization, the power path of mainboard and fan board is not present protection facility or disposable protection be present
Fuse.If there is no protection facility, if fan module short circuit, load current is directly entered mainboard chip, to including
Circuit including mainboard causes irrecoverable damage；If there is the fuse disposably protected, when overcurrent protection occurs, though
So mainboard etc. is effectively protected when occurring short-circuit, but fuse need to be re-replaced just to rework, is unfavorable for later stage dimension
Shield.
Fan board is the tie for connecting mainboard and fan module, in actual applications, the short circuit of fan module be present.
Now, if not having the current limiting measures such as fuse among mainboard and fan module, the short circuit of fan module can be because excessively stream be straight
Connect and expendable damage is caused to chips such as mainboards；If add disposable fuse among mainboard and fan module to carry out
Overcurrent protection, in the event of excessively stream, blowout just needs to re-replace.This is both unfavorable for later maintenance, and is made to client
Into influence.
Utility model content
The technical problems to be solved in the utility model is：The utility model is directed to problem above, there is provided a kind of excessively stream is from extensive
Multiple fan back board structure, realize that a kind of excessively stream can recover reliable realization method and the application of fan board, in mainboard and fan mould
Between group increase can flow recovery protection chip, in not up to overcurrent protection value, chip and fan module normal work, work as because
When the factors such as short circuit cause overcurrent protection, chip MOS shut-offs, contact, avoid so as to cut off power supply between mainboard and fan module
Excessively stream caused by the short circuit of fan module waits causes to damage to mainboard chip, when maintenance personal's exclusion fan module failure, opens again
Dynamic server, excessively stream chip normal work.
Technical scheme is used by the utility model：
A kind of excessively stream self- recoverage fan back board structure, the fan back board structure include fan module and overcurrent protection core
Piece, wherein can flow recovery protection chip be arranged between mainboard and fan module, mainboard and fan module were by that can recover
Stream protection chip forms current path, and the power supply of fan backboard is to connect machine by power supply to be directly obtained by mainboard, comes from master
The power supply of plate first pass around can flow recovery protection chip processing, then by can flow recovery protection chip internal MOS（
Metal Oxide Semiconductor, metal-oxide-semiconductor field effect transistor）Fan module is transferred to, is made
For the driving power of fan module., can flow recovery protection chip and the normal work of fan module in not up to overcurrent protection value
Make, when there is overcurrent protection because of factors such as short circuits, can flow recovery protection chip inside MOS shut-offs, cut off mainboard and wind
Power supply contacts between fanning module, avoids excessively stream caused by fan module short circuit etc. from causing to damage to mainboard chip, works as maintenance personal
Fan module failure is excluded, restarts server, can flow recovery protection chip normal work.
Can flow recovery protection chip load current value determine that small load current can be selected by actual fan module specification
EFUSE, during large load current, from DIP types eFUSE.
It is described can flow recovery protection chip, again give enable signal when rework（Such as restart server
When）, so as to avoid chip cooling technique from getting off the automatic damage to caused by mainboard of resuming work.
The fan back board structure also includes signal connector, the PWM of fan module（ Pulse Width
Modulation, pulse width modulation）Duty cycle control signal, fan TACH speed feedback signals, NARMAL/ERR fan moulds
Normal/error indication signal, PRSNT fans signal in place etc. is organized to communicate with mainboard by signal connector.
It is described can flow recovery protection chip using cut-off current be 10.5A NCP4552X, or cut-off current is 15.5A
NCP4554X。
The beneficial effects of the utility model are：
The utility model reduces the risk of the infringement to mainboard when fan module short circuit, while reduces maintenance
Cost, fan board reliability design is added, cause unrepairable to break mainboard etc. when solving fan module short circuit
Bad the problem of, at the same to ensure after maintenance personal excludes fan module failure, after need to only restarting server, fan board can
Again normal work, maintenance cost is reduced.
Brief description of the drawings
Fig. 1 is the utility model fan board overcurrent protection schematic diagram.
Embodiment
According to Figure of description, the utility model is further illustrated with reference to embodiment：
Embodiment 1
A kind of excessively stream self- recoverage fan back board structure, the fan back board structure include fan module and overcurrent protection core
Piece, wherein can flow recovery protection chip be arranged between mainboard and fan module, mainboard and fan module were by that can recover
Stream protection chip forms current path, and the power supply of fan backboard is to connect machine by power supply to be directly obtained by mainboard, comes from master
The power supply of plate first pass around can flow recovery protection chip processing, then by can flow recovery protection chip internal MOS pass
Fan module is defeated by, the driving power as fan module.In not up to overcurrent protection value, can flow recovery protection chip and
Fan module normal work, when there is overcurrent protection because of factors such as short circuits, can flow recovery protection chip inside MOS close
It is disconnected, cut off power supply between mainboard and fan module and contact, avoid excessively stream caused by fan module short circuit etc. from causing mainboard chip
Damage, when maintenance personal excludes fan module failure, restarting server can flow recovery protection chip normal work.
Embodiment 2
On the basis of embodiment 1, the present embodiment can flow recovery protection chip load current value by actual fan mould
Group specification determines that small load current can be selected eFUSE, during large load current, from DIP types eFUSE.
Embodiment 3
On the basis of embodiment 1 or 2, described in the present embodiment can flow recovery protection chip, giving enabled letter again
Number when rework（When such as restarting server）, resume work so as to avoid chip cooling technique from getting off automatically to caused by mainboard
Damage.
Embodiment 4
On the basis of embodiment 3, fan back board structure described in the present embodiment also includes signal connector, fan module
PWM duty cycle control signal, fan TACH speed feedback signals, NARMAL/ERR fans module be normal/error indication signal,
PRSNT fans signal in place etc. is communicated by signal connector with mainboard.
Embodiment 5
On the basis of embodiment 4, described in the present embodiment can flow recovery protection chip using cut-off current be 10.5A
NCP4552X, or cut-off current are 15.5A NCP4554X.
The NCP4552X series cut-off currents of ON Semi companies are 10.5A, the NCP4554X series current limlitings of ON Semi companies
Value is 15.5A, is required to restart chip after above-mentioned two chip excessively stream（Server）It can just rework；
TPS25910 typical case's cut-off current of TI companies is 6.5A, PTC2920L typical case's cut-off current of Litttelfuse companies
It is 5A, repairs when chip temperature drops to safety value after above-mentioned two chip excessively stream, made repeated attempts after chip reparation being present automatically
Influence to mainboard.
Such as：Every group of fan module includes two fans, and operating current is 9A, therefore selects NCP4552X.
Embodiment is merely to illustrate the utility model, and is not limitation of the utility model, relevant technical field
Those of ordinary skill, in the case where not departing from spirit and scope of the present utility model, it can also make a variety of changes and modification,
Therefore all equivalent technical schemes fall within category of the present utility model, and scope of patent protection of the present utility model should be by right
It is required that limit.
Claims (5)
1. a kind of excessively stream self- recoverage fan back board structure, it is characterised in that the fan back board structure includes fan module and mistake
Stream protection chip, wherein can flow recovery protection chip be arranged between mainboard and fan module, mainboard passes through with fan module
Can flow recovery protection chip form current path, the power supply of fan backboard is to connect machine by power supply to be directly obtained by mainboard,
Come from mainboard power supply first pass around can flow recovery protection chip processing, then by can flow recovery protection chip internal
MOS be transferred to fan module, the driving power as fan module.
2. a kind of excessively stream self- recoverage fan back board structure according to claim 1, it is characterised in that can flow recovery protection
The load current value of chip is determined by actual fan module specification.
3. a kind of excessively stream self- recoverage fan back board structure according to claim 1 or 2, it is characterised in that described to recover
Overcurrent protection chip is reworked when giving enable signal again.
A kind of 4. excessively stream self- recoverage fan back board structure according to claim 3, it is characterised in that the fan backboard knot
Structure also includes signal connector, the PWM duty cycle control signal of fan module, fan TACH speed feedback signals, NARMAL/
ERR fans module is normal/and error indication signal, PRSNT fans signal in place communicated by signal connector with mainboard.
A kind of 5. excessively stream self- recoverage fan back board structure according to claim 4, it is characterised in that it is described can flow recovery
Protection chip is using the NCP4552X that cut-off current is 10.5A, or cut-off current is 15.5A NCP4554X.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720668610.8U CN206773636U (en) | 2017-06-09 | 2017-06-09 | A kind of excessively stream self- recoverage fan back board structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720668610.8U CN206773636U (en) | 2017-06-09 | 2017-06-09 | A kind of excessively stream self- recoverage fan back board structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206773636U true CN206773636U (en) | 2017-12-19 |
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ID=60637689
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720668610.8U Expired - Fee Related CN206773636U (en) | 2017-06-09 | 2017-06-09 | A kind of excessively stream self- recoverage fan back board structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN206773636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108491052A (en) * | 2018-04-02 | 2018-09-04 | 郑州云海信息技术有限公司 | A kind of self-healing method of hot-plug fan |
| CN109494535A (en) * | 2018-11-12 | 2019-03-19 | 郑州云海信息技术有限公司 | A kind of server protection cable |
-
2017
- 2017-06-09 CN CN201720668610.8U patent/CN206773636U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108491052A (en) * | 2018-04-02 | 2018-09-04 | 郑州云海信息技术有限公司 | A kind of self-healing method of hot-plug fan |
| CN108491052B (en) * | 2018-04-02 | 2020-03-17 | 郑州云海信息技术有限公司 | Self-recovery method for hot plug fan |
| CN109494535A (en) * | 2018-11-12 | 2019-03-19 | 郑州云海信息技术有限公司 | A kind of server protection cable |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171219 Termination date: 20180609 |
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| CF01 | Termination of patent right due to non-payment of annual fee |