Server and heat dissipation control method

Abstract

The present invention provides a server and a heat dissipation control method, which relates to the technical field of server equipment. The server includes a chassis, a first fan, a second fan, a power supply unit, an air guide component and a control unit. The chassis includes a side panel, and the side panel is provided with ventilation holes; the first fan and the second fan are arranged on both sides of the length direction of the chassis; the power supply unit is located on the side of the first fan close to the side panel, and the ventilation hole is close to the air inlet of the power supply unit; the air guide component can block the ventilation hole or open the ventilation hole; the first fan, the second fan, the power supply unit and the air guide component are all electrically connected to the control unit. Therefore, when the first fan and the power supply unit compete for wind, the ventilation hole can be opened to allow air from the external environment to be supplemented to the air inlet of the power supply unit, which can avoid the formation of negative wind pressure at the air inlet of the power supply unit, so that the fan of the power supply unit can obtain sufficient wind speed, and the air inlet of the power supply unit can be prevented from forming a heat dissipation island.

Description

Technical Field

[0001] The present invention relates to the technical field of server equipment, and in particular to a server and a heat dissipation control method. Background Art

[0002] With the rapid development of network technologies such as big data, cloud computing, artificial intelligence, and the Internet of Things, traditional servers are no longer able to meet the exponentially growing data processing demands of the internet. To address this challenge, AI servers have emerged. Because GPUs offer advantages in parallel computing and are suitable for compute-intensive tasks such as deep learning and machine learning, AI servers are typically equipped with multiple GPUs (graphics processing units) to increase data processing capabilities. However, due to the relatively high power consumption of GPU modules, the cooling requirements of AI servers are also increased.

[0003] Currently, in some existing AI servers, such as Figure 1 As shown, the power supply 10 and system fan 20 are located on the same side, and the air inlets of the power supply 10 fan and the system fan 20 are roughly located in the same plane. During the heat dissipation process, the power supply 10 fan will draw the hot air inside the server to the outside, and the system fan 20 will also draw the hot air inside the server to the outside. The power supply 10 fan and the system fan 20 draw the hot air in the same direction.

[0004] However, in practice, the power and wind speed of the fan of the power supply 10 itself are much lower than those of the system fan 20. Therefore, the system fan 20 will compete with the power supply 10 for airflow when extracting hot air. That is, the system fan 20 will extract hot air from the air inlet of the power supply 10, causing negative wind pressure at the air inlet of the power supply 10. This will create a heat dissipation island at the air inlet of the power supply 10. The wind pressure at this island will be very high, which will also cause heat accumulation, preventing the heat from being effectively dissipated. This will ultimately cause the fan of the power supply 10 to fail to obtain sufficient wind speed, causing the internal overheating of the power supply 10 to trigger overtemperature protection. At the same time, due to the existence of the negative wind pressure problem, the fan of the power supply 10 will also reverse and fail to rotate normally, causing the fan of the power supply 10 to alarm. Summary of the Invention

[0005] The present invention provides a server and a heat dissipation control method to solve the problem in some AI servers in the prior art that, when the power supply unit and the system fan are arranged on the same side, the system fan will compete with the power supply unit for air during the exhaust process, resulting in the power supply unit fan not being able to obtain sufficient wind speed, and the power supply unit internally overheating and triggering overtemperature protection. At the same time, due to the existence of the negative wind pressure problem, the fan of the power supply unit itself will also reverse and cannot rotate normally, causing the fan alarm problem of the power supply unit.

[0006] According to a first aspect of the present invention, there is provided a server, comprising:

[0007] A chassis, the chassis comprising side panels, the side panels being arranged on sides of the chassis in a width direction, the side panels being provided with ventilation holes;

[0008] a first fan and a second fan, wherein the first fan and the second fan are arranged inside the chassis, and the first fan and the second fan are arranged on both sides of the chassis in a length direction;

[0009] a power supply unit, the power supply unit being disposed inside the chassis, the power supply unit being located on a side of the first fan close to the side panel, and the ventilation hole being close to an air inlet of the power supply unit;

[0010] an air guide assembly, the air guide assembly being disposed inside the chassis and adjacent to an air inlet of the power supply unit, the air guide assembly being movable between a first position for blocking the vent and a second position for opening the vent;

[0011] A control unit is provided inside the chassis, and the first fan, the second fan, the power supply unit and the air guide assembly are all electrically connected to the control unit.

[0012] According to a server provided by the present invention, when the air guide assembly is located at the second position, the air guide assembly is located between the air inlet of the power supply unit and the air inlet of the first fan in the width direction of the chassis.

[0013] According to a server provided by the present invention, the air guide assembly includes an air guide plate and a driving member, the air guide plate is connected to the driving member, the driving member is electrically connected to the control unit, and the driving member can drive the air guide plate to move and can enable the air guide plate to block or open the ventilation hole.

[0014] According to a server provided by the present invention, the driving component is a driving motor.

[0015] According to a server provided by the present invention, the number of the power supply units is two, and the two power supply units are respectively arranged on both sides of the first fan along the width direction of the chassis;

[0016] There are two side panels, each of which is located on both sides of the chassis in a width direction, and the ventilation holes on the two side panels are respectively close to the air inlets of the two power supply units;

[0017] There are two air guide assemblies, and the two air guide assemblies are respectively arranged at the air inlets of the two power supply units.

[0018] According to a server provided by the present invention, there are multiple ventilation holes, and the multiple ventilation holes are arranged in a rectangular array.

[0019] A server provided according to the present invention further includes a wind pressure detection mechanism, which is disposed at an air inlet of the power supply unit and is electrically connected to the control unit.

[0020] According to a server provided by the present invention, the power supply unit has a built-in temperature sensor, the temperature sensor is disposed inside the power supply unit, and the temperature sensor is electrically connected to the control unit.

[0021] According to a server provided by the present invention, the control unit is arranged at the air inlet of the first fan.

[0022] According to a second aspect of the present invention, there is provided a heat dissipation control method for a server according to any one of the first aspects of the present invention, the heat dissipation control method comprising:

[0023] When it is detected that the negative wind pressure of the air inlet of the power supply unit is greater than 500 Pa, the air guide assembly is controlled to move to the second position, so that the ventilation holes of the side panel are in a flow state.

[0024] According to a heat dissipation control method provided by the present invention, the heat dissipation control method further includes:

[0025] When it is detected that the rotation speed of the first fan is greater than 70%, the fan in the power supply unit is controlled to run at the maximum rotation speed.

[0026] According to a heat dissipation control method provided by the present invention, the heat dissipation control method further includes:

[0027] When it is detected that the negative wind pressure at the air inlet of the power supply unit is greater than 500Pa, the first fan is controlled to stop rotating and the speed of the second fan is increased;

[0028] When it is detected that the negative wind pressure at the air inlet of the power supply unit is less than 100 Pa, the first fan and the second fan are controlled to return to a default state.

[0029] According to a heat dissipation control method provided by the present invention, the heat dissipation control method further includes:

[0030] When it is detected that the temperature of the air inlet of the power supply unit reaches a preset temperature value, the speed of the first fan is reduced and the speed of the second fan is increased, wherein the preset temperature value is lower than the alarm line threshold set by the power supply unit itself.

[0031] According to a heat dissipation control method provided by the present invention, the heat dissipation control method further includes:

[0032] When it is detected that the temperature of the air inlet of the power supply unit continues to rise after reaching the preset temperature value, the air guide assembly is controlled to move to the second position, so that the ventilation holes of the side panel are in a flow state.

[0033] According to a heat dissipation control method provided by the present invention, the preset temperature value is 3° C. lower than the alarm threshold value set by the power supply unit itself.

[0034] In the server provided by the present invention, ventilation holes are provided on the side panels, and an air guide assembly is provided inside the server. When the control unit determines that the first fan and the power supply unit are competing for air, the air guide assembly can open the ventilation holes to allow air from the external environment to be replenished into the air inlet of the power supply unit. This can prevent the formation of negative wind pressure at the air inlet of the power supply unit, allowing the fan of the power supply unit to obtain sufficient wind speed, preventing the internal overheating of the power supply unit and triggering over-temperature protection, thereby ensuring the normal operation of the server. At the same time, it can also prevent the air inlet of the power supply unit from forming a heat dissipation island, ensuring that the heat inside the chassis can be effectively dissipated to the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 This is a partial structural diagram of an AI server in related technology.

[0037] Figure 2 It is a schematic structural diagram of a server according to one embodiment of the present invention.

[0038] Figure 3Schematic diagram of the structure of an air guide assembly according to one embodiment of the present invention.

[0039] Figure 4 yes Figure 3 Schematic diagram of the structure of another state of the air guide assembly shown in .

[0040] Figure 5 3 is a schematic structural diagram of an air guide assembly according to another embodiment of the present invention.

[0041] Figure 6 1 is a connection diagram of a control unit in a server according to an embodiment of the present invention.

[0042] Reference numerals:

[0043] 10. Power supply; 20. System fan;

[0044] 100, chassis; 110, side panel; 111, ventilation hole; 200, first fan; 300, second fan; 400, power supply unit; 500, air guide assembly; 510, air guide plate; 520, driving member; 600, control unit; 700, wind pressure detection mechanism. DETAILED DESCRIPTION

[0045] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0046] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0047] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0048] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0049] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0050] In one embodiment of the present invention, a server and a heat dissipation control method are provided, the server including a chassis, a first fan and a second fan, a power supply unit, an air guide assembly and a control unit, the first fan and the second fan are respectively arranged on both sides of the length direction of the chassis, the power supply unit is arranged on the side of the first fan, the power supply unit is close to the side panel of the chassis, the side panel is provided with ventilation holes, the air inlet of the power supply unit is close to the ventilation holes of the side panel, and the air guide assembly can block or open the ventilation holes. During the heat dissipation process, when the control unit determines that the first fan and the power supply unit may compete for wind, it can control the air guide assembly to open the ventilation holes. At this time, the external air can be drawn into the power supply unit through the ventilation holes for heat dissipation, which can ensure that the power supply unit can obtain sufficient wind speed and effectively avoid overheating inside the power supply unit. The following is combined with Figures 2 to 6 The figure further describes the server and heat dissipation control method in this embodiment.

[0051] Specifically, if Figure 2 and Figure 6 As shown, the server in this embodiment includes: a chassis 100 , a first fan 200 , a second fan 300 , a power supply unit 400 , an air guide assembly 500 and a control unit 600 .

[0052] Among them, the chassis 100 includes a side panel 110, which is arranged on the side of the chassis 100 in the width direction, and the side panel 110 is provided with a ventilation hole 111; the first fan 200 and the second fan 300 are arranged inside the chassis 100, and the first fan 200 and the second fan 300 are arranged on both sides of the length direction of the chassis 100; the power supply unit 400 is arranged inside the chassis 100, and the power supply unit 400 is located on the side of the first fan 200 close to the side panel 110, and the ventilation hole 111 is close to the air inlet of the power supply unit 400; the air guide assembly 500 is arranged inside the chassis 100 and close to the air inlet of the power supply unit 400, and the air guide assembly 500 can move between a first position blocking the ventilation hole 111 and a second position opening the ventilation hole 111; the control unit 600 is arranged inside the chassis 100, and the first fan 200, the second fan 300, the power supply unit 400 and the air guide assembly 500 are all electrically connected to the control unit 600.

[0053] Exemplarily, the chassis 100 can be made of a metal material or a non-metallic material. For example, the chassis 100 can be made of a stainless steel plate. The interior of the chassis 100 has a storage space. The relevant functional elements for the operation of the server, such as the GPU and the control unit 600, can be arranged in the storage space inside the chassis 100. The chassis 100 has a side panel 110, which forms the outer shell of the chassis 100. The side panel 110 can protect the functional elements inside the chassis 100. The side panel 110 is provided with a ventilation hole 111. The storage space inside the chassis 100 can be fluidically connected with the external environment through the ventilation hole 111 to facilitate heat dissipation. For example, the cold air from the external environment can enter the interior of the chassis 100 through the ventilation hole 111, or the hot air inside the chassis 100 can reach the external environment through the ventilation hole 111.

[0054] In a specific embodiment, the chassis 100 can be constructed as a rectangular box, with the chassis 100 having a length direction, a width direction, and a height direction that are perpendicular to each other. The chassis 100 can include a top panel, a bottom panel, a front panel, a rear panel, and two side panels 110, wherein the top panel and the bottom panel are respectively located on either side of the height direction of the chassis 100, the front panel and the rear panel are respectively located on either side of the length direction of the chassis 100, and the two side panels 110 are respectively located on either side of the width direction of the chassis 100. Moreover, the top panel, the bottom panel, the front panel, the rear panel, and the two side panels 110 can be connected to each other to form a storage space.

[0055] It can be understood that the above embodiment is only used to exemplify the structure of the chassis 100 and does not limit the specific size of the chassis 100. In actual usage scenarios, the dimensions of the chassis 100 in the length, width and height directions can be adjusted according to needs, and the spatial position of the chassis 100 can also be adjusted according to needs.

[0056] For example, the first fan 200 and the second fan 300 each include a drive motor and fan blades, the fan blades being connected to the output end of the drive motor, and the output end of the drive motor being able to drive the fan blades to rotate during rotation, thereby achieving ventilation. Figure 2 As shown, the first fan 200 and the second fan 300 are both disposed inside the chassis 100 , and the first fan 200 and the second fan 300 are respectively located on both sides of the chassis 100 in the length direction.

[0057] Alternatively, as Figure 6 As shown, the first fan 200 and the second fan 300 are both electrically connected to the control unit 600 inside the chassis 100 , and the first fan 200 and the second fan 300 can operate according to a control signal of the control unit 600 .

[0058] Specifically, the first fan 200 can be arranged on the inner side near the rear plate, and the second fan 300 can be arranged on the inner side near the front plate. Moreover, in order to facilitate the air flow rate to realize the extraction of hot air, the rear plate and the front plate can be provided with through holes.

[0059] In some embodiments, functional elements are provided inside the chassis 100. These functional elements can be provided between the first fan 200 and the second fan 300. For example, to facilitate heat dissipation, the GPU can be provided between the first fan 200 and the second fan 300. These functional elements can also be fixedly provided on the front panel and the rear panel. For example, to facilitate the connection of other external devices, sockets for connecting with other external devices can be provided on the front panel and the rear panel.

[0060] In some embodiments, in order to ensure structural strength, the front plate and the rear plate can be made of metal materials. For example, the front plate and the rear plate can be made of stainless steel plates by stamping or other methods. Moreover, the front plate and the rear plate are provided with bolt holes and hollow structures running through the thickness direction thereof. Functional elements including the first fan 200 and the second fan 300 can be fixedly installed on the front plate and the rear plate by means of bolts and other structures.

[0061] In this embodiment, the first fan 200 has an air inlet and an air outlet on either side of the chassis 100 in the longitudinal direction. The air inlet of the first fan 200 is located inside the chassis 100, while the air outlet of the first fan 200 faces the outside of the chassis 100 and can be connected to the external environment. When the first fan 200 is powered on, it can draw air from the inside of the chassis 100 to the external environment.

[0062] Similarly, the second fan 300 has an air inlet and an air outlet on either side of the chassis 100 in the longitudinal direction. The air outlet of the second fan 300 is located inside the chassis 100, while the air inlet of the second fan 300 faces the outside of the chassis 100 and can be connected to the external environment. When the second fan 300 is powered on, it can draw air from the external environment into the storage space inside the chassis 100.

[0063] During the heat dissipation process, functional components such as the GPU inside the chassis 100 will generate a large amount of heat when working. At this time, the second fan 300 can draw cold air from the external environment into the interior of the chassis 100. The cold air entering the interior of the chassis 100 can absorb the heat inside the chassis 100 and turn into hot air. Afterwards, the first fan 200 draws the hot air inside the chassis 100 to the external environment, allowing the air to circulate, so that the heat inside the chassis 100 is continuously discharged to the external environment through the air, thereby achieving effective heat dissipation.

[0064] Moreover, in actual use, the rotation speeds of the first fan 200 and the second fan 300 can be controlled according to the temperature inside the chassis 100 .

[0065] In a specific embodiment, a temperature sensor is provided inside the chassis 100, which is capable of detecting the temperature inside the chassis 100. The temperature sensor, the first fan 200, and the second fan 300 are all electrically connected to a control unit 600 inside the chassis 100. In this case, the control unit 600 can control the rotation speeds of the first fan 200 and the second fan 300 based on the temperature information detected by the temperature sensor. For example, when the temperature inside the chassis 100 is low, excessive heat dissipation is not required. The control unit 600 can control the first fan 200 and the second fan 300 to operate at a lower rotation speed based on the current temperature signal. When the temperature inside the chassis 100 is high, sufficient heat dissipation is required to prevent the functional components inside the chassis 100 from burning out due to high temperature. The control unit 600 can control the first fan 200 and the second fan 300 to operate at a higher rotation speed based on the current temperature signal, allowing air from the external environment to enter the chassis 100 with higher circulation efficiency to achieve heat exchange.

[0066] For example, the power supply unit 400 (PSU) is a type of power supply for a computer that converts electrical energy (as distinct from a battery-powered power supply), also known as a power supply. The power supply unit 400 is responsible for converting standard AC power into low-voltage, stable DC power, which is then supplied to other functional components within the server. During operation, a large amount of heat is generated within the power supply unit 400. If this heat is not promptly processed, it will cause the temperature within the power supply unit 400 to rise. To avoid potential safety hazards, the power supply unit 400 will reduce its external output power and may even cease operation. Therefore, in addition to being equipped with a functional module for modulating electrical energy, the power supply unit 400 also has a built-in fan. During actual use, the built-in fan within the power supply unit 400 can operate continuously to dissipate heat from within the power supply unit 400.

[0067] In this embodiment, the power supply unit 400 is electrically connected to the control unit 600 inside the chassis 100 and can supply power to the control unit 600. Furthermore, a fan built into the power supply unit 400 can operate according to a control signal from the control unit 600.

[0068] In this embodiment, if Figure 2 As shown, the power supply unit 400 is fixedly disposed in the accommodation space inside the chassis 100 , and there is an installation space between the first fan 200 and the side panel 110 , in which the power supply unit 400 is disposed.

[0069] The power supply unit 400 is provided with an air inlet and an air outlet on both sides of the length direction of the chassis 100. The air inlet of the power supply unit 400 is located inside the chassis 100 and is on the same side as the air inlet of the first fan 200. The air outlet of the power supply unit 400 faces the outside of the chassis 100 and is connected to the external environment.

[0070] During server operation, the power supply unit 400 pumps air from the chassis 100 to the outside environment. During this process, the air flowing through the power supply unit 400 removes the heat generated by the power supply unit 400 itself. Furthermore, the heated air inside the chassis 100 can also pass through the power supply unit 400 and be transferred to the outside environment, thereby reducing the temperature inside the chassis 100.

[0071] Furthermore, in this embodiment, Figure 2As shown, the power supply unit 400 has a side panel 110 on a side facing away from the first fan 200 in the width direction of the chassis 100. Ventilation holes 111 on the side panel 110 are located near the air inlet of the power supply unit 400. When the ventilation holes 111 are in a flow state, air from the external environment can reach the area where the air inlet of the power supply unit 400 is located through the ventilation holes 111.

[0072] Exemplarily, the air guide assembly 500 is disposed inside the chassis 100 , and the air guide assembly 500 can be used to close or open the ventilation holes 111 of the side panels 110 .

[0073] During the operation of the server, the functional components inside the chassis 100 will generate heat, and the air guide assembly 500 is initially located in the first position that blocks the ventilation holes 111. At this time, the interior of the chassis 100 can remain in a relatively closed state. When heat dissipation is required, the second fan 300 can pump cold air from the external environment into the interior of the chassis 100. The cold air entering the interior of the chassis 100 absorbs the heat inside the chassis 100 and turns into hot air. Afterwards, the first fan 200 pumps the hot air inside the chassis 100 to the external environment. At the same time, the fan built into the power supply unit 400 also pumps the hot air inside the chassis 100 to the external environment. This allows the air to circulate, which can ensure effective heat dissipation inside the chassis 100 and the power supply unit 400.

[0074] When the control unit 600 determines that the first fan 200 and the power supply unit 400 are competing for air flow, the control unit 600 can control the air guide assembly 500 to move to the second position where the ventilation holes 111 are opened. At this time, external air can enter the interior of the chassis 100 through the ventilation holes 111. While the fan built into the power supply unit 400 is continuously running, the air entering the interior of the chassis 100 through the ventilation holes 111 can be directly replenished to the air inlet of the power supply unit 400. This replenished air can be sucked into the power supply unit 400 and can be used to reduce the temperature of the power supply unit 400.

[0075] Thus, in the server of this embodiment, by providing ventilation holes 111 on the side panel 110 and providing an air guide assembly 500 inside the server, when the control unit 600 determines that the first fan 200 and the power supply unit 400 are competing for air, the air guide assembly 500 can open the ventilation holes 111 to allow air from the external environment to be replenished to the air inlet of the power supply unit 400, thereby avoiding the formation of negative wind pressure at the air inlet of the power supply unit 400, allowing the fan of the power supply unit 400 to obtain sufficient wind speed, preventing the internal overheating of the power supply unit 400 and the occurrence of over-temperature protection, thereby ensuring the normal operation of the server. At the same time, it can also avoid the formation of a heat dissipation island at the air inlet of the power supply unit 400, thereby ensuring that the heat inside the chassis 100 can be effectively dissipated to the external environment.

[0076] Furthermore, in one embodiment, when the air guide assembly 500 is located at the second position, the air guide assembly 500 is located between the air inlet of the power supply unit 400 and the air inlet of the first fan 200 in the width direction of the chassis 100 .

[0077] It can be understood that ventilation holes 111 are provided on the side panel 110. When the air guide assembly 500 moves to the first position, the air guide assembly 500 can effectively fit to the inner wall of the side panel 110 where the ventilation holes 111 are provided, and can fully cover and block the ventilation holes 111. At this time, the ventilation holes 111 will no longer allow the interior of the box and the external environment to be fluidically connected to each other.

[0078] After the air guide assembly 500 moves to the second position, in the width direction of the box, the air guide assembly 500 can move to a position between the air inlet of the power supply unit 400 and the air inlet of the first fan 200. At this time, the air guide assembly 500 can separate the air inlet of the power supply unit 400 and the space in front of the air inlet of the first fan 200 into two areas. The two areas are located on both sides of the air guide assembly 500, and the two areas correspond to the air inlet of the power supply unit 400 and the air inlet of the first fan 200 respectively. During the operation of the server, the fan in the power supply unit 400 and the first fan 200 can respectively draw air from the two areas.

[0079] Furthermore, as an implementation method, Figure 2 As shown, the air guide assembly 500 includes an air guide plate 510 and a driving member 520. The air guide plate 510 is connected to the driving member 520, and the driving member 520 is electrically connected to the control unit 600. The driving member 520 can drive the air guide plate 510 to move and can enable the air guide plate 510 to block or open the ventilation hole 111.

[0080] Exemplarily, the air deflector 510 can be made of metal material or non-metal material, and the driving member 520 can be an electric hydraulic push rod or a rotary motor, etc. The driving member 520 can drive the air deflector 510 to move according to the driving signal sent by the control unit 600.

[0081] In actual use, when the air guide assembly 500 moves to the first position, the driving member 520 can drive the air guide plate 510 to fit against the inner wall of the side panel 110 and block the ventilation holes 111 on the side panel 110. At this time, the air guide plate 510 can fully block the ventilation holes 111 in the width direction of the chassis 100, so that air from the external environment cannot enter the interior of the chassis 100 through the ventilation holes 111, and at the same time, the air inside the chassis 100 cannot reach the external environment through the ventilation holes 111. When the air guide assembly 500 moves to the second position, the driving member 520 can drive the air guide plate 510 away from the side panel 110 and open the ventilation holes 111 on the side panel 110. At this time, the air guide plate 510 can move away from the ventilation holes 111 in the width direction of the chassis 100, so that air from the external environment can enter the interior of the chassis 100 through the ventilation holes 111, and at the same time, the air inside the chassis 100 can reach the external environment through the ventilation holes 111.

[0082] In a specific embodiment, Figure 3 The driving member 520 is a rotary motor having a rotatable output end. The driving member 520 is fixedly mounted inside the server, for example, on a bottom plate. The air deflector 510 is fixedly connected to the output end of the driving member 520. During rotation, the driving member 520 can drive the air deflector 510 to fit against the side plate 110 or to move the air deflector 510 away from the side plate 110. When the air deflector 510 fits against the side plate 110, the air deflector 510 can block the ventilation holes 111 on the side plate 110. When the air deflector 510 moves away from the side plate 110, the ventilation holes 111 on the side plate 110 can remain unobstructed.

[0083] For example, in Figure 3 When the driving member 520 drives the air guide plate 510 to move in the counterclockwise direction, the air guide plate 510 can be attached to the side plate 110 and block the ventilation hole 111. Figure 4 As shown, when the driving member 520 drives the air guide plate 510 to move in a clockwise direction, the air guide plate 510 can move away from the side plate 110 and open the ventilation hole 111.

[0084] It is understood that there is a certain distance between the driving member 520 and the side panel 110. In order to enable the air guide plate 510 to fully block all the ventilation holes 111, in one embodiment, the air guide plate 510 may include a blocking portion and a connecting portion that are connected to each other, with an angle formed between the blocking portion and the connecting portion. The connecting portion is connected to the driving member 520. When the driving member 520 drives the air guide plate 510 to rotate, when the air guide assembly 500 moves to the first position, the end surface of the blocking portion facing the side panel 110 can be fully attached to the inner wall surface of the side panel 110. This end surface can cover all the ventilation holes 111, thereby effectively blocking the ventilation holes 111. Moreover, to improve the blocking effect, the end surface of the blocking portion facing the side panel 110 can also be provided with a sealing layer made of rubber material.

[0085] When the air guide assembly 500 moves to the second position, the blocking portion can be away from the side plate 110, and the end surface of the blocking portion toward the side plate 110 is in an inclined state. Figure 4 As shown, the end of the blocking portion close to the power supply unit 400 is the first end, and the end of the blocking portion away from the power supply unit 400 is the second end. In the width direction of the chassis 100, the distance between the first end and the side panel 110 is greater than the distance between the second end and the side panel 110. The blocking portion is in an inclined state, and the end surface of the blocking portion facing the side panel 110 can be used to guide the air from the ventilation hole 111 into the air inlet of the power supply unit 400.

[0086] In another specific embodiment, Figure 5 As shown, the driving member 520 is an electric hydraulic push rod having a retractable output end. The driving member 520 is fixedly disposed inside the chassis 100, for example, the driving member 520 can be fixedly disposed on the bottom plate. The air deflector 510 is fixedly connected to the output end of the driving member 520. During the retraction process, the driving member 520 can drive the air deflector 510 to fit against the side plate 110, or to drive the air deflector 510 away from the side plate 110. When the air deflector 510 fits against the side plate 110, the air deflector 510 can block the ventilation holes 111 on the side plate 110. When the air deflector 510 is away from the side plate 110, the ventilation holes 111 on the side plate 110 can remain unobstructed.

[0087] For example, in Figure 5 When the driving member 520 drives the air guide plate 510 to move to the left, the air guide plate 510 can fit into the side panel 110 and block the ventilation hole 111. When the driving member 520 drives the air guide plate 510 to move to the right, the air guide plate 510 can move away from the side panel 110 and open the ventilation hole 111.

[0088] Optionally, in order to ensure the stability of the structure and prevent the air guide plate 510 from falling off the driving member 520, the number of driving members 520 can be two, and the two driving members 520 are arranged in parallel and spaced apart inside the chassis 100. The output ends of the two driving members 520 are simultaneously connected to the air guide plate 510 and can simultaneously drive the air guide plate 510 to move.

[0089] Further, in one embodiment, Figure 2 As shown, there are two power supply units 400, and the two power supply units 400 are respectively arranged on both sides of the first fan 200 along the width direction of the chassis 100; there are two side panels 110, and the two side panels 110 are respectively located on both sides of the width direction of the chassis 100, and the ventilation holes 111 on the two side panels 110 are respectively close to the air inlets of the two power supply units 400; there are two air guide components 500, and the two air guide components 500 are respectively arranged at the air inlets of the two power supply units 400.

[0090] For example, inside the chassis 100, the first fan 200 is provided with power supply units 400 on both sides of the chassis 100 in the width direction. The two power supply units 400 are symmetrically arranged on both sides of the power supply unit 400. Furthermore, the two side panels 110 in the width direction of the chassis 100 are each provided with ventilation holes 111. The two power supply units 400 are respectively provided on the inner sides of the two side panels 110. The ventilation holes 111 on the two side panels 110 are respectively provided near the air inlets of the two power supply units 400. At the same time, the area where the air inlet of each power supply unit 400 is located is also provided with an air guide assembly 500, and the two air guide assemblies 500 are symmetrically arranged in the width direction of the chassis 100.

[0091] In actual use, in the initial state of server operation, both air guide assemblies 500 are in the first position, that is, the two air guide assemblies 500 can respectively block the ventilation holes 111 on the two side panels 110. At this time, the interior of the chassis 100 can remain in a relatively closed state. During the heat dissipation process, when the first fan 200 and the power supply unit 400 on both sides compete for air, the two air guide assemblies 500 can be moved simultaneously to the second position, opening the ventilation holes 111. At this time, external air can enter the interior of the chassis 100 through the ventilation holes 111 on both sides. Moreover, while the fans built into the power supply unit 400 are continuously running, the air entering the interior of the chassis 100 through the ventilation holes 111 can be guided by the air guide plate 510 to replenish the air inlet of the power supply unit 400, thereby preventing the formation of negative wind pressure at the air inlet of the power supply unit 400, allowing the fan of the power supply unit 400 to obtain sufficient wind speed, preventing the internal overheating of the power supply unit 400 and triggering over-temperature protection, thereby ensuring the normal operation of the server. At the same time, it can also prevent the air inlet of the power supply unit 400 from forming a heat dissipation island, and ensure that the heat inside the chassis 100 can be effectively dissipated to the external environment.

[0092] Furthermore, in one embodiment, there are multiple ventilation holes 111 , and the multiple ventilation holes 111 are arranged in a rectangular array.

[0093] Exemplarily, the ventilation holes 111 can be constructed as circular holes, elliptical holes or square holes, etc., and each side panel 110 is provided with a plurality of ventilation holes 111. On the one hand, the plurality of ventilation holes 111 can be arranged in sequence at intervals along a first direction, and on the other hand, they can be arranged in sequence at intervals along a second direction perpendicular to the first direction. At this time, the plurality of ventilation holes 111 are arranged in a rectangular array.

[0094] Through the above-mentioned configuration, it is possible to ensure that the air in the external environment can fully and effectively enter the interior of the chassis 100, while also protecting the functional components inside the chassis 100.

[0095] Optionally, in some embodiments, the plurality of ventilation holes 111 may be arranged on the side panel 110 in other arrangements, for example, in a circular array.

[0096] In addition, in order to prevent foreign matter from entering the interior of the case, a dustproof net is further provided inside the chassis 100 . The dustproof net is attached to the inner wall of the side panel 110 , and the dustproof net covers all the ventilation holes 111 .

[0097] Further, in one embodiment, Figure 2 and Figure 6As shown, the server further includes a wind pressure detection mechanism 700 , which is disposed at the air inlet of the power supply unit 400 and is electrically connected to the control unit 600 .

[0098] It can be understood that the wind pressure detection mechanism 700 can effectively detect the wind pressure status of the air inlet of the power supply unit 400, and the wind pressure detection mechanism 700 can transmit the detected wind pressure information to the control unit 600, and the subsequent control unit 600 can control the movement of the air guide assembly 500 based on the wind pressure information.

[0099] Furthermore, in one embodiment, the power supply unit 400 has a built-in temperature sensor, which is disposed inside the power supply unit 400 and electrically connected to the control unit 600 .

[0100] It can be understood that the temperature sensor can effectively detect the temperature inside the power supply unit 400, and the temperature sensor can transmit the detected temperature information to the control unit 600, and the control unit 600 can subsequently control the operation of the fan inside the power supply unit 400 based on the temperature information.

[0101] Furthermore, in one embodiment, the control unit 600 is disposed at an air inlet of the first fan 200 .

[0102] It can be understood that by arranging the control unit 600 at the air inlet of the first fan 200 , the first fan 200 can also cool down the control unit 600 during operation.

[0103] In a specific embodiment, the control unit 600 can be a control chip with various control programs built in. The control unit 600 can be used to control the rotation speed of the first fan 200 and the second fan 300, and can also control the rotation speed of the fan in the power supply unit 400, prevent the fan in the power supply unit 400 from reversing, and can also control the movement of the air guide assembly 500.

[0104] For example, Figure 5 As shown, the wind pressure detection mechanism 700 can be electrically connected to the control unit 600 via a serial communication bus to realize data transmission. Moreover, the first fan 200, the second fan 300, the power supply unit 400 and the air guide assembly 500 can also be electrically connected to the control unit 600 via a serial communication bus to realize data transmission.

[0105] As mentioned above, this embodiment also provides a heat dissipation control method, which is used for the server described in the above embodiment. Figure 5 As shown, the heat dissipation control method includes:

[0106] When it is detected that the negative wind pressure at the air inlet of the power supply unit 400 is greater than 500 Pa, the air guide assembly 500 is controlled to move to the second position, so that the ventilation holes 111 of the side panel 110 are in a flow state.

[0107] For example, during normal operation of the server, in the default initial state, the air guide assembly 500 is in the first position. At this time, the ventilation holes 111 of the side panel 110 are closed, and the first fan 200, the second fan 300, and the fans in the power supply unit 400 are all in operation. Moreover, the operating state and speed of the first fan 200 and the second fan 300 can be adjusted according to the temperature inside the chassis 100. For example, when the temperature inside the chassis 100 is higher, the speed of the first fan 200 and the second fan 300 is faster. Correspondingly, the operating state and speed of the fans built into the power supply unit 400 can be adjusted according to the temperature inside the power supply unit 400. For example, when the temperature inside the power supply unit 400 is higher, the speed of the fans built into the power supply unit 400 is faster. The operating data of the first fan 200, the second fan 300, and the fans in the power supply unit 400 are also transmitted to the control unit 600 in real time.

[0108] When the control unit 600 detects through the wind pressure detection mechanism 700 that the negative wind pressure at the air inlet of the power supply unit 400 is greater than 500Pa, it means that the first fan 200 has begun to compete with the fan of the power supply unit 400 for wind during operation. At this time, if the current state is maintained, it is possible that the power supply unit 400 cannot absorb enough air volume, and the power supply unit 400 cannot dissipate heat normally. To avoid abnormalities in the power supply unit 400, the control unit 600 can send a control signal to the air guide component 500, so that the air guide component 500 moves from the first position to the second position, so that the ventilation hole 111 switches from a blocked state to a flow state. At this time, air in the external environment can enter the interior of the box through the ventilation hole 111. This air can be replenished to the fan of the power supply unit 400, which can ensure that the power supply unit 400 absorbs enough air volume, allows the power supply unit 400 to dissipate heat normally, and ensures that the power supply unit 400 can work normally.

[0109] Furthermore, in one embodiment, the heat dissipation control method further includes:

[0110] When it is detected that the rotation speed of the first fan 200 is greater than 70%, the fan in the power supply unit 400 is controlled to operate at the maximum rotation speed.

[0111] For example, when the first fan 200 is rotating, its own rotation speed will be transmitted to the control unit 600 in real time. When the control unit 600 detects that the rotation speed of the first fan 200 is greater than 70% of its own maximum rotation speed, it means that the temperature inside the chassis 100 has reached a certain level. At this time, the first fan 200 will compete with the fan of the power supply unit 400 for wind at the current rotation speed, and may cause the power supply unit 400 to not absorb enough air volume, and the power supply unit 400 cannot work normally. To avoid abnormalities in the power supply unit 400, the control unit 600 can send a control signal to the fan in the power supply unit 400 to allow the fan to run directly at the maximum speed. At this time, the fan in the power supply unit 400 will rotate at the maximum speed and can draw air inside the chassis 100 with the maximum suction power. This air can be replenished to the fan of the power supply unit 400, ensuring that the power supply unit 400 absorbs enough air volume and effectively dissipates heat, ultimately ensuring that the power supply unit 400 can work normally.

[0112] Furthermore, in one embodiment, the heat dissipation control method further includes:

[0113] When it is detected that the negative wind pressure at the air inlet of the power supply unit 400 is greater than 500 Pa, the first fan 200 is controlled to stop rotating and the speed of the second fan 300 is increased;

[0114] When it is detected that the negative wind pressure at the air inlet of the power supply unit 400 is less than 100 Pa, the first fan 200 and the second fan 300 are controlled to return to the default state.

[0115] As mentioned above, when the control unit 600 detects through the wind pressure detection mechanism 700 that the negative wind pressure at the air inlet of the power supply unit 400 is greater than 500Pa, it means that the first fan 200 has begun to compete with the fan of the power supply unit 400 for wind during operation. At this time, if the current state is maintained, it is possible that the power supply unit 400 cannot absorb enough wind volume, and the power supply unit 400 cannot dissipate heat normally. In order to avoid abnormalities in the power supply unit 400, the control unit 600 can send a control signal to the first fan 200 to make the first fan 200 00 stops rotating. At this time, the first fan 200 no longer draws the air inside the chassis 100 to the external environment. At the same time, the second fan 300 increases its operating speed, allowing the air in the external environment to enter the interior of the chassis 100 at a faster speed, replenishing air to the interior of the chassis 100. This air can be replenished to the air inlet of the power supply unit 400, reducing the negative wind pressure at the air inlet of the power supply unit 400, ensuring that the power supply unit 400 absorbs enough air volume, allowing the power supply unit 400 to dissipate heat normally, and ensuring that the power supply unit 400 can work normally.

[0116] Moreover, when the control unit 600 detects through the wind pressure detection mechanism 700 that the negative wind pressure at the air inlet of the power supply unit 400 is less than 100 Pa, it indicates that the air inside the chassis 100 has reached a normal circulation state. At this time, in order to normally dissipate heat inside the chassis 100, the control unit 600 can send a control signal to the first fan 200 and the second fan 300, and the first fan 200 and the second fan 300 operate in the default state, that is, the operating state and speed of the first fan 200 and the second fan 300 can be adjusted automatically according to the temperature inside the chassis 100.

[0117] Furthermore, in one embodiment, the heat dissipation control method further includes:

[0118] When it is detected that the temperature of the air inlet of the power supply unit 400 reaches a preset temperature value, the speed of the first fan 200 is reduced and the speed of the second fan 300 is increased, wherein the preset temperature value is lower than the alarm line threshold set by the power supply unit 400 itself.

[0119] It is understood that the power supply unit 400 itself has a set alarm threshold. When the temperature inside the power supply unit 400 is lower than the alarm threshold, the power supply unit 400 can operate normally. When the temperature inside the power supply unit 400 exceeds the alarm threshold, the power supply unit 400 will reduce its external output power and may even shut down. In other words, in order to ensure that the power supply unit 400 can operate normally, it is necessary to ensure that the maximum operating temperature of the power supply unit 400 is lower than the alarm threshold set by the power supply unit 400. In this embodiment, the preset temperature value is lower than the alarm threshold set by the power supply unit 400.

[0120] During actual server operation, when the control unit 600 detects that the temperature of the air inlet of the power supply unit 400 has reached a preset temperature value, if the server continues to operate in the current state, the temperature inside the power supply unit 400 may exceed its own set alarm threshold and may eventually fail to operate normally. Based on this, on the one hand, the rotation speed of the first fan 200 can be reduced, allowing more air to leave the interior of the chassis 100 under the suction effect of the fan built into the power supply unit 400, thereby improving the heat dissipation effect of the power supply unit 400. On the other hand, the rotation speed of the second fan 300 can be increased, allowing more air from the external environment to enter the interior of the chassis 100 for heat exchange. As a result, more air is ultimately allowed to enter the interior of the power supply unit 400 for heat exchange, thereby effectively reducing the temperature inside the power supply unit 400.

[0121] Furthermore, in one embodiment, the heat dissipation control method further includes:

[0122] When it is detected that the temperature of the air inlet of the power supply unit 400 continues to rise after reaching the preset temperature value, the air guide assembly 500 is controlled to move to the second position, so that the ventilation holes 111 of the side panel 110 are in a flow state.

[0123] For example, when the temperature inside the power supply unit 400 cannot be effectively reduced after reducing the speed of the first fan 200 and increasing the speed of the second fan 300, the control unit 600 will send a control signal to the driving component 520 in the air guide assembly 500, so that the driving component 520 drives the air guide plate 510 away from the side panel 110, and makes the ventilation holes 111 on the side panel 110 in a flow state, so that the cold air in the external environment can enter the interior of the chassis 100. The cold air can reach the air inlet of the power supply unit 400, and then enter the interior of the power supply unit 400 to be used for cooling the power supply unit 400.

[0124] That is to say, when the air inside the chassis 100 cannot cool the power supply unit 400, the ventilation holes 111 of the side panel 110 can be opened to allow cold air from the outside environment to enter the interior of the power supply unit 400 for heat exchange, so as to effectively reduce the temperature inside the power supply unit 400.

[0125] Furthermore, in one embodiment, the preset temperature value may be set to be 3° C. lower than the alarm threshold value set by the power supply unit 400 itself.

[0126] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0127] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A server, characterized in that: include: A chassis, the chassis comprising side panels, the side panels being arranged on the sides of the chassis in the width direction, the side panels being provided with ventilation holes; a first fan and a second fan, wherein the first fan and the second fan are arranged inside the chassis, and the first fan and the second fan are arranged on both sides of the length direction of the chassis; the second fan can pump cold air from the external environment into the interior of the chassis, and the first fan can pump hot air from the interior of the chassis to the external environment; A power supply unit, the power supply unit is arranged inside the chassis, the power supply unit is located at the side of the first fan close to the side plate, and the ventilation hole is close to the air inlet of the power supply unit; An air guide assembly, the air guide assembly is arranged inside the chassis and close to the air inlet of the power supply unit, and the air guide assembly can move between a first position blocking the ventilation hole and a second position opening the ventilation hole; A control unit, wherein the control unit is disposed inside the chassis, and the first fan, the second fan, the power supply unit, and the air guide assembly are all electrically connected to the control unit; When the control unit determines that the first fan and the power supply unit compete for wind, the control unit controls the air guide assembly to move to a second position where the ventilation hole is opened.

2. The server according to claim 1, characterized in that: When the air guide assembly is located at the second position, the air guide assembly is located between the air inlet of the power supply unit and the air inlet of the first fan in the width direction of the chassis.

3. The server according to claim 1, characterized in that: The wind guide assembly includes a wind guide plate and a driving member, the wind guide plate is connected to the driving member, the driving member is electrically connected to the control unit, and the driving member can drive the wind guide plate to move and can cause the wind guide plate to block or open the ventilation hole.

4. The server according to claim 3, characterized in that: The driving member is a driving motor.

5. The server according to claim 1, characterized in that: The number of the power supply units is two, and the two power supply units are respectively arranged on both sides of the first fan along the width direction of the chassis; There are two side panels, the two side panels are respectively located on both sides of the width direction of the chassis, and the ventilation holes on the two side panels are respectively close to the air inlets of the two power supply units; The number of the air guide components is two, and the two air guide components are respectively arranged at the air inlets of the two power supply units.

6. The server according to claim 1, characterized in that: There are multiple ventilation holes, and the multiple ventilation holes are arranged in a rectangular array.

7. The server according to claim 1, characterized in that: It also includes a wind pressure detection mechanism, which is arranged at the air inlet of the power supply unit and is electrically connected to the control unit.

8. The server according to claim 1, characterized in that: The power supply unit has a built-in temperature sensor, the temperature sensor is disposed inside the power supply unit, and the temperature sensor is electrically connected to the control unit.

9. The server according to claim 1, characterized in that: The control unit is arranged at the air inlet of the first fan.

10. A heat dissipation control method for a server according to any one of claims 1 to 9, characterized in that: The heat dissipation control method comprises: When it is detected that the negative wind pressure at the air inlet of the power supply unit is greater than 500 Pa, the air guide assembly is controlled to move to the second position so that the ventilation holes of the side panel are in a flow state.

11. The heat dissipation control method according to claim 10, characterized in that: The heat dissipation control method further includes: When it is detected that the rotation speed of the first fan is greater than 70%, the fan in the power supply unit is controlled to run at the maximum rotation speed.

12. The heat dissipation control method according to claim 10, characterized in that: The heat dissipation control method further includes: When it is detected that the negative wind pressure at the air inlet of the power supply unit is greater than 500Pa, the first fan is controlled to stop rotating and the speed of the second fan is increased; When it is detected that the negative wind pressure at the air inlet of the power supply unit is less than 100 Pa, the first fan and the second fan are controlled to return to a default state.

13. The heat dissipation control method according to claim 10, characterized in that: The heat dissipation control method further includes: When it is detected that the temperature of the air inlet of the power supply unit reaches a preset temperature value, the rotation speed of the first fan is reduced and the rotation speed of the second fan is increased, wherein the preset temperature value is lower than the alarm line threshold set by the power supply unit itself.

14. The heat dissipation control method according to claim 13, characterized in that: The heat dissipation control method further includes: When it is detected that the temperature of the air inlet of the power supply unit continues to rise after reaching the preset temperature value, the air guide assembly is controlled to move to the second position so that the ventilation holes of the side panel are in a flow state.

15. The heat dissipation control method according to claim 13, characterized in that: The preset temperature value is 3° C. lower than the alarm line threshold set by the power supply unit itself.

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