CN210666758U - Board card supporting hot plug of 54V fan - Google Patents
Board card supporting hot plug of 54V fan Download PDFInfo
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- CN210666758U CN210666758U CN201921926758.2U CN201921926758U CN210666758U CN 210666758 U CN210666758 U CN 210666758U CN 201921926758 U CN201921926758 U CN 201921926758U CN 210666758 U CN210666758 U CN 210666758U
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- 230000003287 optical effect Effects 0.000 claims description 24
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to a server technical field provides a support integrated circuit board of 54V fan hot plug, including a fan male connector J1, fan male connector J1 is equipped with pin stitch 1, pin stitch 2, pin stitch 3, pin stitch 4 and pin stitch 5, and wherein, pin stitch 2, pin stitch 3, pin stitch 4 correspond an opto-isolator of connection respectively, and this opto-isolator keeps apart pulse noise to avoid pulse noise's high energy to damage fan control circuit, further realize 54V fan's hot plug.
Description
Technical Field
The utility model discloses the server belongs to the technical field, especially, relate to a support integrated circuit board of 54V fan hot plug.
Background
The power consumption of the server is generally high, especially for high-end AI servers. The high-end AI server is configured with 2-16 GPUs, and the power consumption of the GPUs can reach 300W/GPU. Therefore, the total power consumption of the AI server can reach 10000W. The heat dissipation technology of the server is a key factor which restricts the performance and reliability of the server. Air cooling is often used in heat dissipation technology. In the server design stage, simulation is carried out according to the heating power consumption of the server and the working temperature of the environment where the server is located, and the required air quantity and the number of fans are calculated. If the number of fans is large, a special fan plate is generally designed to centrally manage and supply power to the fans. The AI server consumes more power and uses 54V power to reduce input current and link loss, and therefore the fan uses 54V.
However, the traditional server is powered by 12V, the fan board peripheral control line is designed around 12V, and can support hot swap, when 54V fan is used, the fan board peripheral control line continues to use the original 12V fan line, but it cannot be used for 54V fan because 54V is higher in voltage or potential and energy, and larger impulse noise is generated during hot swap, and the impulse noise may burn out the fan or burn out the fan controller.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a support integrated circuit board of 54V fan hot plug aims at solving 54V fan among the prior art and continues to use original 12V fan board, and it will produce bigger impulse noise at the hot plug in-process, and these impulse noise can burn out the fan or burn out the problem of fan controller.
The utility model provides a technical scheme is: a board card supporting hot plug of a 54V fan comprises a fan male connector J1, wherein the fan male connector J1 is provided with a pin stitch 1, a pin stitch 2, a pin stitch 3, a pin stitch 4 and a pin stitch 5;
a line led out by the pin 2 is connected with a pin 4 of an optical coupler isolator D1, a pin 3 of the optical coupler isolator D1 is connected with a pull-down resistor R4 in series and then grounded, a pin 2 of the optical coupler isolator D1 is connected with a pull-up resistor R1 in series and then grounded, and a pin 1 of the optical coupler isolator D1 is connected with a TACH end;
a circuit led out by the pin 3 is connected with a pin 4 of an optical coupler isolator D2, a pin 3 of the optical coupler isolator D2 is connected with a pull-down resistor R5 in series and then grounded, a pin 2 of the optical coupler isolator D2 is connected with a pull-up resistor R2 in series and then grounded, and a pin 1 of the optical coupler isolator D2 is connected with a Presence end;
the circuit that pin stitch 4 was drawn forth is connected with opto-isolator D3's pin 1, ground connection behind the pin 2 of opto-isolator D3 concatenates pull-up resistance R3, ground connection behind the pin 3 of opto-isolator D3 concatenates pull-down resistance R6, the pin 4 and the PWM end of opto-isolator D3 are connected.
As an improved scheme, the pin 1 is connected with a load switch chip U1, the other end of the load switch chip U1 is connected with a power end of P54V, the load switch chip U1 is provided with an OCP protection pin, and a line led out from the OCP protection pin is connected with a resistor R7 in series and then grounded.
As a modified scheme, the values of the pull-up resistor R1, the pull-up resistor R2 and the pull-up resistor R3 are 4.7K ohms.
As a modified solution, the values of the pull-down resistor R4, the pull-down resistor R5 and the pull-down resistor R6 are 10K ohms.
As an improved scheme, the length of the pin corresponding to the pin stitch 5 is larger than the lengths of the pins corresponding to the pin stitch 1, the pin stitch 2, the pin stitch 3 and the pin stitch 4.
The utility model discloses in, the integrated circuit board that supports 54V fan hot plug includes a fan male connector J1, fan male connector J1 is equipped with pin stitch 1, pin stitch 2, pin stitch 3, pin stitch 4 and pin stitch 5, and wherein, pin stitch 2, pin stitch 3, pin stitch 4 correspond an opto-coupler isolator of connection respectively, and this opto-coupler isolator falls pulse noise isolation to avoid pulse noise's high energy to damage fan control circuit, further realize 54V fan's hot plug.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of a board card supporting a 54V fan hot plug provided by the present invention;
fig. 2 is a schematic structural diagram of a male fan connector J1 provided by the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Fig. 1 is a schematic structural diagram of the board card supporting hot plugging of the 54V fan according to the present invention, and for convenience of description, only the relevant portions of the present invention are shown in the diagram.
The board card supporting the hot plug of the 54V fan comprises a fan male connector J1, wherein the fan male connector J1 is provided with a pin 1, a pin 2, a pin 3, a pin 4 and a pin 5;
a line led out by the pin 2 is connected with a pin 4 of an optical coupler isolator D1, a pin 3 of the optical coupler isolator D1 is connected with a pull-down resistor R4 in series and then grounded, a pin 2 of the optical coupler isolator D1 is connected with a pull-up resistor R1 in series and then grounded, and a pin 1 of the optical coupler isolator D1 is connected with a TACH end;
a circuit led out by the pin 3 is connected with a pin 4 of an optical coupler isolator D2, a pin 3 of the optical coupler isolator D2 is connected with a pull-down resistor R5 in series and then grounded, a pin 2 of the optical coupler isolator D2 is connected with a pull-up resistor R2 in series and then grounded, and a pin 1 of the optical coupler isolator D2 is connected with a Presence end;
the circuit that pin stitch 4 was drawn forth is connected with opto-isolator D3's pin 1, ground connection behind the pin 2 of opto-isolator D3 concatenates pull-up resistance R3, ground connection behind the pin 3 of opto-isolator D3 concatenates pull-down resistance R6, the pin 4 and the PWM end of opto-isolator D3 are connected.
In the utility model, as shown in fig. 1, the pin 1 is connected to a load switch chip U1, the other end of the load switch chip U1 is connected to a power end P54V, the load switch chip U1 is provided with an OCP protection pin, and a line led out by the OCP protection pin is connected to a resistor R7 in series and then grounded;
wherein, the load switch chip U1 is a 54V load switch, and an OCP protection point can be set. The value of the protection point can be flexibly changed by setting R7. The value of the OCP protection point is set according to the backend fan maximum current. The value of the OCP protection point will typically be set to 120% of the maximum fan current. When the fan or the connector is abnormal, such as the internal short circuit of the fan or the short circuit of a connecting pin, abnormal large current can trigger load switch OCP protection, so that 54V is disconnected, and the safety problems of burning the board card or the fan are avoided. .
As shown in fig. 2, the length of the pin needle that pin stitch 5 corresponds is greater than the pin needle length that pin stitch 1, pin stitch 2, pin stitch 3, pin stitch 4 correspond, and wherein, the pin needle (GND pin) that pin stitch 5 corresponds is long pin, and length is the longest in all pins, and when the fan inserted the fan board, because the pin needle that pin stitch 5 corresponds is the longest, the pin needle that pin stitch 5 corresponds can contact at first. The rest pin needles are contacted again. When the fan plate is pulled out by the fan, the pin corresponding to the pin stitch 5 can be separated finally. The design that the pin corresponding to the pin pins 5 is firstly contacted and is finally separated, the board card and the fan can firstly form stable zero potential, and the uniform zero potential can inhibit the amplitude of pulse noise. The burning probability of the control circuit on the fan or the fan plate is greatly reduced.
The utility model discloses in, the resistance of pull-up resistance R1, pull-up resistance R2 and pull-up resistance R3 is 4.7K ohm, and the resistance of pull-down resistance R4, pull-down resistance R5 and pull-down resistance R6 is 10K ohm, can adopt other resistances certainly, no longer describe herein.
In this embodiment, the definition of the pin stitch 1, the pin stitch 2, the pin stitch 3, the pin stitch 4, and the pin stitch 5 is as follows:
The pin 4 is PWM and is a fan rotating speed driving signal, and the BMC controls the rotating speed of the fan by controlling the duty ratio of the BMC.
The pin 5 is GND and is a power supply return path.
The utility model discloses in, can't support the background of hot plug to 54V fan because electric potential is high, the big problem of energy, the utility model discloses a 54V load switch, opto-coupler isolator and length pin design will effectively reduce the pulse noise of hot plug in-process to effectively support the fan hot plug, the convenient maintenance of the fan of being convenient for. And the maintainability of the server is improved.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (5)
1. The board card supporting the hot plug of the 54V fan is characterized by comprising a fan male connector J1, wherein the fan male connector J1 is provided with a pin stitch 1, a pin stitch 2, a pin stitch 3, a pin stitch 4 and a pin stitch 5;
a line led out by the pin 2 is connected with a pin 4 of an optical coupler isolator D1, a pin 3 of the optical coupler isolator D1 is connected with a pull-down resistor R4 in series and then grounded, a pin 2 of the optical coupler isolator D1 is connected with a pull-up resistor R1 in series and then grounded, and a pin 1 of the optical coupler isolator D1 is connected with a TACH end;
a circuit led out by the pin 3 is connected with a pin 4 of an optical coupler isolator D2, a pin 3 of the optical coupler isolator D2 is connected with a pull-down resistor R5 in series and then grounded, a pin 2 of the optical coupler isolator D2 is connected with a pull-up resistor R2 in series and then grounded, and a pin 1 of the optical coupler isolator D2 is connected with a Presence end;
the circuit that pin stitch 4 was drawn forth is connected with opto-isolator D3's pin 1, ground connection behind the pin 2 of opto-isolator D3 concatenates pull-up resistance R3, ground connection behind the pin 3 of opto-isolator D3 concatenates pull-down resistance R6, the pin 4 and the PWM end of opto-isolator D3 are connected.
2. The board card supporting 54V fan hot plug according to claim 1, wherein the pin 1 is connected to a load switch chip U1, the other end of the load switch chip U1 is connected to a power supply terminal P54V, the load switch chip U1 is provided with an OCP protection pin, and a line led out from the OCP protection pin is connected in series with a resistor R7 and then grounded.
3. The board card supporting a 54V fan hot plug as claimed in claim 2, wherein the values of the pull-up resistor R1, the pull-up resistor R2 and the pull-up resistor R3 are 4.7K ohms.
4. The board card supporting 54V fan hot plugging according to claim 2, wherein the values of the pull-down resistor R4, the pull-down resistor R5 and the pull-down resistor R6 are 10K ohms.
5. The board card supporting the hot plug of the 54V fan according to claim 2, wherein the length of the pin corresponding to the pin 5 is greater than the lengths of the pins corresponding to the pin pins 1, 2, 3 and 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921926758.2U CN210666758U (en) | 2019-11-08 | 2019-11-08 | Board card supporting hot plug of 54V fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921926758.2U CN210666758U (en) | 2019-11-08 | 2019-11-08 | Board card supporting hot plug of 54V fan |
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| Publication Number | Publication Date |
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| CN210666758U true CN210666758U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921926758.2U Active CN210666758U (en) | 2019-11-08 | 2019-11-08 | Board card supporting hot plug of 54V fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075978A (en) * | 2021-03-26 | 2021-07-06 | 山东英信计算机技术有限公司 | Fan module hot plug timing sequence regulation and control device, method and server |
-
2019
- 2019-11-08 CN CN201921926758.2U patent/CN210666758U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075978A (en) * | 2021-03-26 | 2021-07-06 | 山东英信计算机技术有限公司 | Fan module hot plug timing sequence regulation and control device, method and server |
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