Air cooling and liquid cooling switching method and self-adaptive server case

Abstract

The invention relates to the technical field of server cases, and discloses an air cooling and liquid cooling switching method and a self-adaptive server case, a case main body comprises an air cooling assembly, a liquid cooling assembly, a heating unit and a control unit; the liquid cooling assembly comprises a cold conduction structure arranged on each heating unit, and the liquid cooling assembly is used for conveying a cooling medium to the cold conduction structures when being started; the air cooling assembly comprises a fan module; a fin structure is formed on the side, deviating from the heating unit, of the cold conduction structure, so that a plurality of air channels are formed in the cold conduction structure through the fin structure, and the fan module is used for conveying air cooling airflow into the air channels when started; temperature detection units in signal connection with the control unit are respectively arranged on the cold conduction structures; and a switching control signal of the liquid cooling assembly and the air cooling assembly is generated according to temperature data detected by the temperature detection unit. The problem that when a cooling system of an existing server case breaks down, the whole system cannot work normally is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of server chassis, and particularly to an air-cooling and liquid-cooling switching method and an adaptive server chassis. Background Art

[0002] A server chassis is an enclosure device used to house and protect internal hardware components of a server chassis (such as a motherboard, CPU, memory, hard disk, power supply, etc.). It is an important part of the physical structure of a server chassis, which not only provides physical support, but also involves functions such as heat dissipation, wiring management, and expandability.

[0003] Most of the common server chassis on the market currently are devices with air-cooling heat dissipation form. Air-cooling heat dissipation refers to driving air flow through a fan module to take away the heat generated by hardware, which is the most common heat dissipation method.

[0004] There are also some devices that, due to the high power consumption of the whole machine, the air-cooling heat dissipation method cannot meet the normal working requirements of the device, so some heat dissipation methods with higher efficiency will be adopted, such as heat pipe heat dissipation, vapor chamber heat dissipation, semiconductor heat exchange, and liquid-cooling heat dissipation methods.

[0005] The disadvantages of the above heat dissipation methods are that these solutions are all single heat dissipation forms, and when a certain part of the heat exchange system fails, the entire system will not be able to work properly.

[0006] In the related art, although there are also some server chassis that adopt a hybrid heat dissipation method, in this technology, a division of labor and cooperation method is adopted. Taking the air-cooling and liquid-cooling hybrid heat dissipation method in a server chassis as an example, the liquid-cooling system is responsible for high heat density components (such as CPU, GPU cores), and uses the high thermal conductivity of the liquid to quickly take away the heat; while the air-cooling system is responsible for dealing with the remaining heat (such as low-power components such as motherboard chipset, memory, hard disk, etc.). Therefore, in this existing technology, the liquid-cooling solves the local high-temperature bottleneck, and the air-cooling balances the overall temperature and reduces the pressure of the liquid-cooling system. This hybrid heat dissipation method, although formally a hybrid heat dissipation of air-cooling and liquid-cooling, is actually still a single heat dissipation form for the system. For example, when the liquid-cooling fails, the heat dissipation components of the high heat density components will stop working, and the entire system will not be able to work properly due to the heat dissipation failure.

[0007] Therefore, the disadvantage of the existing technology is that when the heat dissipation system of the existing server chassis fails, the entire system will not be able to work properly. Summary of the Invention

[0008] The main purpose of the present invention is to provide an air-cooling and liquid-cooling adaptive server chassis, aiming to solve the problem that when the heat dissipation system of the existing server chassis fails, the entire system will not be able to work properly.

[0009] To achieve the above-mentioned purpose, the present invention provides an air-cooling and liquid-cooling switching method, which is applied to an air-cooling and liquid-cooling adaptive server chassis, wherein the server chassis comprises a chassis body, the chassis body comprises an air-cooling component and a liquid-cooling component, and a heating unit and a control unit are accommodated inside the chassis body; The liquid cooling assembly includes a liquid inlet and a liquid outlet provided on the chassis body and respectively used to communicate with a liquid cooling source; the liquid inlet and the liquid outlet are respectively communicated with the internal space of the chassis liquid separation component; the liquid cooling assembly also includes a cooling conduction structure provided on each of the heating units, each of the cooling conduction structures is respectively provided with a fluid connector, and the fluid connector is provided with a connection inlet and a connection outlet for communicating with the chassis liquid separation component; the liquid cooling assembly is used to transport a cooling medium to the cooling conduction structure when starting; The air cooling assembly includes a fan module; a fin structure is formed on the side of the cooling structure away from the heating unit, so that a plurality of air ducts are formed on the cooling structure through the fin structure, and the fan module is used to deliver air cooling air into the air duct when started; The cooling structures are respectively provided with temperature detection units connected to the control unit signals; The method comprises: A switching control signal for the liquid cooling component and the air cooling component is generated according to the temperature data detected by the temperature detection unit.

[0010] Optionally, the step of generating a switching control signal for the liquid cooling component and the air cooling component according to the temperature data detected by the temperature detection unit includes: After the liquid cooling component is started, the heating unit corresponding to each temperature detection unit and the temperature control value set for the corresponding heating unit are obtained, wherein the heating unit corresponding to each temperature detection unit is the heating unit corresponding to the cooling structure corresponding to each temperature detection unit; Determine whether there is an abnormal cooling structure where the temperature data detected by the temperature detection unit reaches a set temperature control value; If so, determine whether there is an abnormality in the liquid cooling component based on the design parameters of the liquid cooling component and the temperature difference of the abnormal cooling structure; If so, the liquid cooling component is controlled to stop, and the air cooling component is controlled to start.

[0011] Optionally, the method further includes: Obtaining a temperature control value set for a different temperature rise rate of each of the heating units; The step of determining whether there is an abnormal cooling structure in which the temperature data detected by the temperature detection unit reaches a set temperature control value comprises: Obtain the temperature data detected by each of the temperature detection units, and calculate the current temperature rise rate corresponding to each of the heating units; According to the current temperature rise rate corresponding to each of the heating units, obtain the current temperature control value corresponding to each of the heating units; Judge whether the current temperature of the heat conduction structure corresponding to each of the heating units reaches the current temperature control value to determine whether there is an abnormal heat conduction structure.

[0012] Optionally, after the step of judging whether the current temperature of the heat conduction structure corresponding to each of the heating units reaches the current temperature control value to determine whether there is an abnormal heat conduction structure, the method further includes: Generate a temperature sampling period according to the difference value between the current temperature of the heat conduction structure corresponding to each of the heating units and the current temperature control value; When the temperature sampling period is reached, execute the step of obtaining the temperature data detected by each of the temperature detection units again, and execute the step of judging whether the current temperature of the heat conduction structure corresponding to each of the heating units reaches the current temperature control value to determine whether there is an abnormal heat conduction structure.

[0013] Optionally, the method further includes: Compare the temperature difference data detected by each of the temperature detection units before and after the liquid cooling component is switched to the air cooling component to form a temperature difference data matrix, where the temperature difference data is the difference between the temperature data of the same heat conduction structure before the liquid cooling component is switched to the air cooling component and the temperature data after the liquid cooling component is switched to the air cooling component; Determine the heating units with abnormal operation according to the distribution positions of the temperature difference data in the temperature difference data matrix and the positions of the temperature difference data assigned negative numbers or 0; Determine the heat conduction structures with abnormal operation according to the distribution positions of the temperature difference data in the temperature difference data matrix and the positions of the temperature difference data assigned positive numbers; Generate an over-temperature control strategy according to the heating units with abnormal operation and the heat conduction structures with abnormal operation.

[0014] Optionally, the step of comparing the temperature difference data detected by each of the temperature detection units before and after the liquid cooling component is switched to the air cooling component to form a temperature difference data matrix includes: Arrange each of the heating units to form a monitoring matrix; Obtain the temperature data detected by the temperature detection unit provided for the heat conduction structure corresponding to each of the heating units, and arrange the temperature data collected at the same acquisition time point to form a temperature data matrix according to the positions of the heating units in the monitoring matrix; The temperature difference data matrix is calculated based on the temperature data matrix before and after the liquid cooling component is switched to the air cooling component.

[0015] Optionally, the step of generating an over-temperature control strategy according to the overheating unit with operating anomalies and the heat conduction structure with operating anomalies includes: Determine the overlapping elements of the temperature difference data corresponding to the overheating unit with operating anomalies and the temperature difference data corresponding to the heat conduction structure with operating anomalies in the temperature difference data matrix, and determine the target overheating unit according to the overlapping elements; After adjusting the liquid cooling flow control value and the fan module speed control value of the target overheating unit to the maximum values respectively, trigger the over-temperature timing for the target overheating unit; Detect the operating parameters of the target overheating unit, where the operating parameters include the liquid cooling flow rate, temperature, fan module speed, over-temperature timing duration corresponding to the target overheating unit, and the key heat generation process of the target overheating unit; Input the operating parameters into the control decision model to calculate whether to trigger a prompt to shut down the key heat generation process in the control decision model.

[0016] Optionally, the step of inputting the operating parameters into the control decision model to calculate whether to trigger a prompt to shut down the key heat generation process in the control decision model includes: Perform a thermal risk score based on the operating parameters: ; Wherein, is the thermal risk score; and are thermal risk coefficients respectively, and both are greater than 0; 、 and are weight coefficients respectively, and both are greater than 0; is the target liquid cooling flow rate, is the actual liquid cooling flow rate, is the actual temperature of the target overheating unit, is the target temperature of the target overheating unit, is the actual speed of the fan module, is the target fan module speed related to the actual temperature of the target overheating unit; is the over-temperature timing duration; When reaches the preset risk score, trigger a prompt to shut down the key heat generation process in the control decision model; Among them, the key heat generation process of the target overheating unit is determined with reference to the following method: ; Wherein, is the heat contribution of process P, is the instantaneous power consumption of process P, is the activity time proportion of process P; i is the process number of the target heating unit, N is the total number of processes running in the target heating unit, , wherein the key heating process is a process whose heat contribution exceeds a preset heat contribution.

[0017] To achieve the above object, the present invention further proposes an air-cooled and liquid-cooled adaptive server chassis, which applies the air-cooled and liquid-cooled switching method; the server chassis includes a chassis body, the chassis body includes an air-cooled component and a liquid-cooled component, and a heating unit and a control unit are accommodated inside the chassis body; The liquid cooling assembly includes a liquid inlet and a liquid outlet provided on the chassis body and respectively used to communicate with a liquid cooling source; the liquid inlet and the liquid outlet are respectively communicated with the internal space of the chassis liquid separation component; the liquid cooling assembly also includes a cooling conduction structure provided on each of the heating units, each of the cooling conduction structures is respectively provided with a fluid connector, and the fluid connector is provided with a connection inlet and a connection outlet for communicating with the chassis liquid separation component; the liquid cooling assembly is used to transport a cooling medium to the cooling conduction structure when starting; The air cooling assembly includes a fan module; a fin structure is formed on the side of the cooling structure away from the heating unit, so that a plurality of air ducts are formed on the cooling structure through the fin structure, and the fan module is used to deliver air cooling air into the air duct when started; The cooling structures are respectively provided with temperature detection units connected to the control unit signals; The control unit is used to generate a switching control signal for the liquid cooling component and the air cooling component according to the temperature data detected by the temperature detection unit.

[0018] Optionally, the chassis liquid separation component is a liquid separation plate, and a liquid storage space is formed inside the liquid separation plate for separating liquid to each of the cooling conduction structures.

[0019] In the technical solution of the present invention, the air-cooled and liquid-cooled adaptive server chassis is provided with two sets of heat dissipation components, namely an air-cooled component and a liquid-cooled component. Among them, the liquid-cooled component is used to transport the cooling medium provided by the liquid-cooled source to the chassis liquid distribution component, and then through the chassis liquid distribution component, provide the cooling medium to the heat conduction structure arranged for each heating unit; the side of the heat conduction structure facing away from the heating unit is a fin structure, and an air duct is formed through the fin structure, thus cleverly realizing the combination of the air-cooled position and the liquid-cooled position in the physical position. When the fan module of the air-cooled structure starts, it is used to provide air-cooled air flow into the air duct. Usually, the air-cooled component can be preferentially started for system heat dissipation. According to the temperature data detected by the temperature detection unit, the server chassis can control the operation of the two sets of heat dissipation components to realize the switching between air cooling and liquid cooling in special use scenarios, ensuring that the server chassis can continue to work uninterruptedly, thereby guaranteeing the heat dissipation performance of the server chassis. Therefore, the present invention is beneficial to solving the problem that the entire system cannot work normally when the heat dissipation system of the existing server chassis fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the server chassis in the present invention; Figure 2 It is an internal structure schematic diagram of the server chassis in the present invention; Figure 3 It is a structure schematic diagram of the heating unit in the present invention; Figure 4 It is a top view structure schematic diagram of the heating unit in the present invention; Figure 5 It is a side view structure schematic diagram of the heating unit in the present invention; Figure 6 It is an internal structure schematic diagram of the heating unit in the present invention; Figure 7 It is a three-dimensional structure schematic diagram of the heat conduction structure in the present invention.

[0021] DESCRIPTION OF THE REFERENCE NUMERALS: 1. Chassis main body; 2. Liquid inlet; 3. Liquid outlet; 4. Chassis liquid distribution component; 5. Heat conduction structure; 6. Heating unit; 7. Fluid connector; 8. Power consumption device; 9. Temperature detection unit; 10. Fan module; 11. Air duct; The realization of the object, functional characteristics and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] In the following description, suffixes such as "unit", "component" or "unit" used to represent elements are only used to facilitate the description of the present invention, and have no specific meanings. Therefore, "unit", "component" or "unit" can be used in a mixed manner.

[0024] See also Figures 1 to 7 To achieve the above-mentioned purpose, the present invention provides an air-cooling and liquid-cooling switching method, which is applied to an air-cooling and liquid-cooling adaptive server chassis, wherein the server chassis comprises a chassis body 1, wherein the chassis body 1 comprises an air-cooling component and a liquid-cooling component, and wherein a heating unit 6 and a control unit are accommodated inside the chassis body 1; The liquid cooling assembly includes a liquid inlet 2 and a liquid outlet 3 provided on the chassis body 1 and respectively used to communicate with a liquid cooling source; the liquid inlet 2 and the liquid outlet 3 are respectively communicated with the internal space of the chassis liquid separation component 4; the liquid cooling assembly also includes a cooling structure 5 provided on each of the heating units 6, each of the cooling structures 5 is respectively provided with a fluid connector 7, and the fluid connector 7 is provided with a connection inlet and a connection outlet for communicating with the chassis liquid separation component 4; the liquid cooling assembly is used to transport a cooling medium to the cooling structure 5 when starting; The air cooling assembly includes a fan module 10; a fin structure is formed on the side of the cooling structure 5 away from the heating unit 6, so that a plurality of air ducts 11 are formed on the cooling structure 5 through the fin structure, and the fan module 10 is used to deliver air cooling air into the air duct 11 when starting; The cooling structures 5 are respectively provided with temperature detection units 9 connected to the control unit signals; The method comprises: Step S10: generating a switching control signal for the liquid cooling component and the air cooling component according to the temperature data detected by the temperature detection unit 9.

[0025] In the technical solution of the present invention, the air-cooled and liquid-cooled adaptive server chassis is provided with two sets of heat dissipation components, namely an air-cooled component and a liquid-cooled component. Among them, the liquid-cooled component is used to transport the cooling medium provided by the liquid-cooled source to the chassis liquid distribution component 4, and then through the chassis liquid distribution component 4, the cooling medium is provided to the heat conduction structure 5 provided for each heating unit 6; the side of the heat conduction structure 5 facing away from the heating unit 6 is a fin structure, and an air duct 11 is formed through the fin structure, thus cleverly realizing the combination of the air-cooled position and the liquid-cooled position in the physical position. When the fan module 10 of the air-cooled structure is started, it is used to provide air-cooled air flow into the air duct 11. Usually, the air-cooled component can be preferentially started for system heat dissipation. According to the temperature data detected by the temperature detection unit 9, the server chassis can control the operation of the two sets of heat dissipation components to realize the switching between air cooling and liquid cooling in special use scenarios, ensuring that the server chassis can continue to work uninterruptedly, thereby ensuring the heat dissipation performance of the server chassis. Therefore, the present invention is beneficial to solving the problem that when the heat dissipation system of the existing server chassis fails, the entire system cannot work properly.

[0026] Specifically, the above-mentioned heating unit 6 may include: computing boards (such as CPU (Central Processing Unit), GPU (Graphics Processing Unit), FPGA (Field Programmable Gate Array)), storage boards, network boards, and other types of boards that require heat dissipation.

[0027] Specifically, there are various types of cooling media for the heating unit 6. For example, water, water-ethylene glycol mixture, or synthetic oil (such as PAO polyalphaolefin).

[0028] The heating unit 6 is provided with a power-consuming device 8, and the heat generated by the power-consuming device 8 is taken away by the heat conduction structure 5.

[0029] Furthermore, the fan module 10 of the air-cooled component can be arranged on one side of the internal space of the server chassis, and the air ducts 11 formed by the fin structures provided on the heat conduction structures 5 of each heating unit 6 can be arranged along the wind direction of the fan module 10.

[0030] The number of fan modules 10 is not limited. In the present invention, the number of fan modules 10 can specifically be 2 - 4.

[0031] The fluid connector 7 is provided with a connection inlet and a connection outlet for communicating with the chassis liquid distribution component 4. The connection inlet is used to introduce the cooling medium in the chassis liquid distribution component 4 into the heat conduction structure 5, and the connection outlet is used to guide the cooling medium in the heat conduction structure 5 back to the chassis liquid distribution component 4.

[0032] Further, in the present invention, a liquid cooling component can be preferentially used to dissipate heat from the server chassis, and the temperature on the heat conduction structure 5 is collected by the temperature detection unit 9 on each heat conduction structure 5. When the temperature collected by the temperature detection unit 9 on the heat conduction structure 5 is lower than the preset upper temperature limit, it is determined that the current heat conduction structure 5 is operating normally, that is, the temperature of the heat generating unit 6 attached to the heat conduction structure 5 is normal; conversely, when the temperature collected by the temperature detection unit 9 on the heat conduction structure 5 reaches the preset upper temperature limit, it is determined that the current heat conduction structure 5 is operating abnormally, that is, the temperature of the heat generating unit 6 attached to the heat conduction structure 5 is abnormal. Specifically, when there is an abnormally operating heat conduction structure 5 in the server chassis, the control unit further determines whether the liquid cooling component is faulty. When the liquid cooling component is faulty, the control unit switches the liquid cooling component to an air cooling component to dissipate heat from the heat generating unit 6.

[0033] Specifically, the reasons for the failure of the liquid cooling component may be: the pump inside the liquid cooling component fails or has insufficient rotational speed, the internal pipeline of the liquid cooling component is blocked or air-blocked, the outlet temperature of the cooling medium of the liquid cooling source is too high, etc., or it may be that the thermal paste of the heat conduction structure 5 is aged, and the heat conduction structure 5 is loose.

[0034] After switching the liquid cooling component to an air cooling component, the system inside the server chassis can be further detected for liquid cooling component failure.

[0035] Based on the first embodiment of the air cooling and liquid cooling switching method of the present invention, in the second embodiment of the air cooling and liquid cooling switching method of the present invention, the step S10 includes: Step S11, after the liquid cooling component is started, obtain the heat generating unit 6 corresponding to each temperature detection unit 9, and the temperature control value set for the corresponding heat generating unit 6, wherein the heat generating unit 6 corresponding to each temperature detection unit 9 is the heat generating unit 6 corresponding to the heat conduction structure 5 corresponding to each temperature detection unit 9; Step S12, determine whether there is an abnormally operating heat conduction structure 5 in which the temperature data detected by the temperature detection unit 9 reaches the set temperature control value; If so, execute step S13: Determine whether there is an abnormality in the liquid cooling component according to the design parameters of the liquid cooling component and the temperature difference situation of the abnormally operating heat conduction structure 5; If so, execute step S14: Control the liquid cooling component to stop, and control the air cooling component to start.

[0036] In this embodiment, the temperature control value refers to the upper temperature limit value of the heat conduction structure 5 determined according to the preset upper temperature limit of the heating unit 6. Specifically, since the types of the heating units 6 are different and their heating conditions are also different, the temperature control values of the heat conduction structures 5 corresponding to each type of heating unit 6 are also different. In this embodiment, when there is an abnormal heat conduction structure 5 in which the temperature data detected by the temperature detection unit 9 reaches the set temperature control value, and it is determined that there is an abnormality in the liquid cooling component, the liquid cooling component is controlled to stop, and the air cooling component is controlled to start.

[0037] Among them, the temperature detection unit 9 is arranged on the heat conduction structure 5, and the heat conduction structure 5 is arranged in close contact with the heating unit 6. Therefore, the heating unit 6 corresponding to each temperature detection unit 9 refers to the heating unit 6 in close contact with the heat conduction structure 5 corresponding to each temperature detection unit 9.

[0038] Further, refer to the following method to determine whether there is an abnormal heat conduction structure 5: (1) Calculate the expected theoretical temperature difference of the heating unit 6 at the current power consumption according to the design parameters of the liquid cooling component (including: cooling medium flow rate, specific heat capacity of the cooling medium); (2) Monitor the actual temperature difference between the inlet and outlet cooling media of the heat conduction structure 5 (wherein, the temperature of the inlet cooling medium of the heat conduction structure 5 is calculated based on the outlet temperature of the liquid cooling source, and the temperature of the outlet cooling medium of the heat conduction structure 5 is calculated based on the outlet temperature of the heat conduction structure 5 detected by the temperature detection unit 9 of the heat conduction structure 5); (3) Calculate whether the difference between the actual temperature difference and the theoretical temperature difference is within the allowable error range. If so, it is determined that the corresponding heat conduction structure 5 is normal; if not, it is determined that the corresponding heat conduction structure 5 is abnormal.

[0039] If at least one heat conduction structure 5 is abnormal, the liquid cooling component is abnormal.

[0040] Based on the second embodiment of a method for switching between air cooling and liquid cooling of the present invention, in the third embodiment of a method for switching between air cooling and liquid cooling of the present invention, the method further includes: Step S20, obtaining the temperature control values set for different temperature rise speeds of each of the heating units 6; The step S12 includes: Step S121, obtaining the temperature data detected by each of the temperature detection units 9, and calculating the current temperature rise speed corresponding to each of the heating units 6; Step S122, obtaining the current temperature control value corresponding to each of the heating units 6 according to the current temperature rise speed corresponding to each of the heating units 6; Step S123: Determine whether the current temperature of the cooling structure 5 corresponding to each heating unit 6 reaches the current temperature control value to determine whether there is an abnormal cooling structure 5.

[0041] Specifically, the temperature rise rate of the heating unit 6 here is calculated by using the temperature rise rate of the cooling structure 5 attached to the heating unit 6.

[0042] Specifically, in this embodiment, the temperature control value of each heating unit 6 can be determined in the following manner: ; wherein, t is the temperature sampling period, T L is the temperature of the cooling structure 5, is the temperature rise rate of the cooling structure 5, that is, the temperature rise rate of the heating unit 6; is the temperature control value corresponding to the cooling structure 5 at the current temperature rise rate; k 1 is the attenuation coefficient, indicating the influence of the temperature rise rate on the temperature control value, is the critical value of the temperature rise rate, and emergency protection is triggered when it is exceeded; T steady is the highest temperature allowed in the steady state, T emergency is the temperature threshold for emergency control or shutdown.

[0043] Based on the third embodiment of the air-cooling and liquid-cooling switching method of the present invention, in the fourth embodiment of the air-cooling and liquid-cooling switching method of the present invention, after the step S123, it further includes: Step S124: Generate a temperature sampling period according to the difference value between the current temperature of the cooling structure 5 corresponding to each heating unit 6 and the current temperature control value; Step S125: When the temperature sampling period is reached, execute again the step of obtaining the temperature data detected by each temperature detection unit 9, and execute the step of determining whether the current temperature of the cooling structure 5 corresponding to each heating unit 6 reaches the current temperature control value to determine whether there is an abnormal cooling structure 5.

[0044] Among them, the difference value between the current temperature of the cooling structure 5 corresponding to each heating unit 6 and the current temperature control value is: the difference between the current temperature of the cooling structure 5 and the current temperature control value.

[0045] When the difference value is negative or equal to 0, it indicates that the current temperature of the heat conduction structure 5 corresponding to the heating unit 6 does not exceed the current temperature control value. At this time, the temperature sampling period can be the set default period; when the difference value is positive, it indicates that the current temperature of the heat conduction structure 5 corresponding to the heating unit 6 exceeds the current temperature control value. At this time, the temperature sampling period decays on the set default period according to the set attenuation gradient and the magnitude of the difference value. When the difference value is positive and reaches the difference threshold, the control unit issues a power consumption adjustment instruction to perform redundant circuit shutdown and frequency reduction operations on the corresponding heating unit 6.

[0046] In this embodiment, the temperature sampling period can be dynamically adjusted according to the magnitude of the difference value to timely detect heat dissipation failures or abnormal temperature rises of board cards in the server chassis.

[0047] Based on the fourth embodiment of the air-cooling and liquid-cooling switching method of the present invention, in the fifth embodiment of the air-cooling and liquid-cooling switching method of the present invention, the method further includes: Step S30: Compare the temperature difference data detected by each temperature detection unit 9 before and after the liquid-cooling component is switched to the air-cooling component to form a temperature difference data matrix, where the temperature difference data is the difference between the temperature data of the same heat conduction structure 5 before the liquid-cooling component is switched to the air-cooling component and the temperature data after the liquid-cooling component is switched to the air-cooling component; Step S40: Determine the heating units 6 with abnormal operation according to the distribution positions of the respective temperature difference data in the temperature difference data matrix and the positions of the temperature difference data assigned negative or 0 values; Step S50: Determine the heat conduction structures 5 with abnormal operation according to the distribution positions of the respective temperature difference data in the temperature difference data matrix and the positions of the temperature difference data assigned positive values; Step S60: Generate an over-temperature control strategy according to the heating units 6 with abnormal operation and the heat conduction structures 5 with abnormal operation.

[0048] Specifically, the technical solution of the present invention can not only perform the switching between the liquid-cooling component and the air-cooling component according to the abnormal temperature conditions of the heating unit 6. In the fifth embodiment of the present invention, a server chassis diagnosis report can also be formed according to the temperature difference data detected by each temperature detection unit 9 before and after the liquid-cooling component is switched to the air-cooling component.

[0049] Specifically, the heating units 6 to be detected for temperature are sorted and arranged in a monitoring matrix. The position of each element in the monitoring matrix represents the position of the corresponding heating unit 6.

[0050] In each sampling period, the temperature data collected by all the temperature detection units 9 corresponding to the heating units 6 is recorded into the monitoring matrix according to the row and column positions of the heating units 6 in the monitoring matrix, so as to form a temperature data matrix for this sampling period.

[0051] The temperature difference data matrix refers to the difference between two temperature data matrices formed in two specified sampling periods. In this embodiment, the temperature difference data detected by each of the temperature detection units 9 before and after switching the liquid cooling component to the air cooling component forms a temperature difference data matrix, where the temperature difference data is the difference between the temperature data of the same heat conduction structure 5 before switching the liquid cooling component to the air cooling component and the temperature data after switching the liquid cooling component to the air cooling component, and refers to the difference between the temperature data matrix in the preset sampling period before switching the liquid cooling component to the air cooling component and the temperature data matrix in the preset sampling period after switching the liquid cooling component to the air cooling component.

[0052] Specifically, if a certain temperature difference data in the temperature difference data matrix is negative or 0, it indicates that the temperature of the corresponding heat conduction structure 5 has increased after switching the liquid cooling component to the air cooling component; generally speaking, if the liquid cooling component is operating normally, its heat dissipation effect is better than that of the air cooling component, so the temperature remaining unchanged or increasing conforms to the heat dissipation effect of the liquid cooling component, and the liquid cooling component has no abnormality. Instead, it is because the temperature of the heating unit 6 is too high that the switch to the air cooling component is made. Therefore, in this case, it can be determined that the heating unit 6 is abnormal. For example, the reason for the abnormality may be that the power consumption of the heating unit 6 is too high.

[0053] Specifically, if a certain temperature difference data in the temperature difference data matrix is positive, it indicates that the temperature of the corresponding heat conduction structure 5 has decreased after switching the liquid cooling component to the air cooling component; generally speaking, if the liquid cooling component is operating normally, its heat dissipation effect is better than that of the air cooling component, so the temperature decrease does not conform to the heat dissipation effect of the liquid cooling component. At this time, it is determined that the corresponding heat conduction structure 5 is abnormal.

[0054] Based on the fifth embodiment of a method for switching between air cooling and liquid cooling according to the present invention, in the sixth embodiment of a method for switching between air cooling and liquid cooling according to the present invention, the step S30 includes: Step S31, arranging each of the heating units 6 to form a monitoring matrix; Step S32, obtaining the temperature data detected by the temperature detection unit 9 provided for each of the heat conduction structures 5 corresponding to each of the heating units 6, and arranging the temperature data collected at the same acquisition time point according to the positions of the heating units 6 in the monitoring matrix to form a temperature data matrix; Step S33, calculating the temperature difference data matrix according to the temperature data matrices before and after switching the liquid cooling component to the air cooling component.

[0055] In the fifth embodiment of an air-cooling and liquid-cooling switching method based on the present invention, in the seventh embodiment of an air-cooling and liquid-cooling switching method of the present invention, step S60 includes: Step S61: Determine the temperature difference data corresponding to the heat-generating unit 6 with abnormal operation and the temperature difference data corresponding to the heat conduction structure 5 with abnormal operation, and the overlapping elements in the temperature difference data matrix, and determine the target heat-generating unit according to the overlapping elements; Step S62: After adjusting the liquid-cooling flow control value and the fan module rotation speed control value of the target heat-generating unit to the maximum values respectively, trigger the over-temperature timing for the target heat-generating unit; Step S63: Detect the operating parameters of the target heat-generating unit, where the operating parameters include the liquid-cooling flow rate, temperature, fan module rotation speed, over-temperature timing duration corresponding to the target heat-generating unit, and the key heat-generating process of the target heat-generating unit; Step S64: Input the operating parameters into the control decision model to calculate whether to trigger a prompt to close the key heat-generating process in the control decision model.

[0056] Among them, the overlapping element refers to an element in the elements of the temperature difference data matrix that corresponds to both the heat-generating unit 6 with abnormal operation and the abnormal heat conduction structure 5. Since the heat-generating unit 6 corresponding to this element has abnormal liquid-cooling heat dissipation and abnormal heat generation, in this embodiment, temperature control detection is performed on it to determine whether over-temperature treatment is carried out.

[0057] In the seventh embodiment of an air-cooling and liquid-cooling switching method based on the present invention, in the eighth embodiment of an air-cooling and liquid-cooling switching method of the present invention, step S64 specifically includes: Perform a thermal risk score according to the operating parameters: ; Among them, is the thermal risk score; and are respectively thermal risk coefficients, and both are greater than 0; 、 and are respectively weight coefficients, and both are greater than 0; is the target liquid-cooling flow rate, is the actual liquid-cooling flow rate, is the actual temperature of the target heat-generating unit, is the target temperature of the target heat-generating unit, is the actual rotation speed of the fan module, is the target fan module rotation speed related to the actual temperature of the target heat-generating unit; is the over-temperature timing duration; When When the preset risk score is reached, a prompt to close the critical heat - generating process is triggered in the control decision model; Among them, the critical heat - generating process of the target heat - generating unit is determined as follows: ; Among them, is the heat contribution degree of process P, is the instantaneous power consumption of process P, is the proportion of the active time of process P; i is the process number of the target heat - generating unit, and N is the total number of processes running in the target heat - generating unit. , where the critical heat - generating process is the process whose heat contribution degree exceeds the preset heat contribution degree.

[0058] Among them, first, the liquid - cooling flow control value and the fan module speed control value of the target heat - generating unit are respectively adjusted to the maximum. Then, when the actual liquid - cooling flow of the target heat - generating unit is smaller, it means that the liquid - cooling heat - dissipation flow is smaller (considering reasons such as liquid - cooling system blockage for small actual flow), and at this time, the heat risk is greater; at the same time, when the actual temperature of the target heat - generating unit is higher, the heat risk is greater; and when the actual speed of the fan module is smaller (such as the fan module becoming loose), the heat risk is greater.

[0059] Further, after the prompt to close the critical heat - generating process is triggered, after detecting for a set time, whether the increment of reaches the set value. If so, detect whether the critical heat - generating process has been closed. If not, execute the control instruction to close the critical heat - generating process.

[0060] Based on the first embodiment of the air - cooling and liquid - cooling switching method of the present invention, in the ninth embodiment of the air - cooling and liquid - cooling switching method of the present invention, the method further includes: Step S70, obtaining an element temperature query instruction; Step S80, judging whether the target query unit in the element temperature query instruction is the heat - generating unit 6; If so, execute step S90: output the temperature data of the heat - generating unit 6; If not, execute step S100: obtain the heat - generating unit 6 adjacent to the target query unit; Step S110: Calculate the temperature of the target query unit according to the temperature data detected by the temperature detection unit 9 corresponding to the heat - generating unit 6 adjacent to the target query unit.

[0061] Further, in the actual operation scenario, temperature detection units 9 are not set for each element in the server chassis for temperature monitoring, and the temperature of each element can be estimated using the temperature of the surrounding heat - generating units 6.

[0062] To achieve the above object, the present invention further proposes an air-cooled and liquid-cooled adaptive server chassis, which applies the air-cooled and liquid-cooled switching method; the server chassis comprises a chassis body 1, the chassis body 1 comprises an air-cooled component and a liquid-cooled component, and the chassis body 1 contains a heating unit 6 and a control unit; The liquid cooling assembly includes a liquid inlet 2 and a liquid outlet 3 provided on the chassis body 1 and respectively used to communicate with a liquid cooling source; the liquid inlet 2 and the liquid outlet 3 are respectively communicated with the internal space of the chassis liquid separation component 4; the liquid cooling assembly also includes a cooling structure 5 provided on each of the heating units 6, each of the cooling structures 5 is respectively provided with a fluid connector 7, and the fluid connector 7 is provided with a connection inlet and a connection outlet for communicating with the chassis liquid separation component 4; the liquid cooling assembly is used to transport a cooling medium to the cooling structure 5 when starting; The air cooling assembly includes a fan module 10; a fin structure is formed on the side of the cooling structure 5 away from the heating unit 6, so that a plurality of air ducts 11 are formed on the cooling structure 5 through the fin structure, and the fan module 10 is used to deliver air cooling air into the air duct 11 when starting; The cooling structures 5 are respectively provided with temperature detection units 9 connected to the control unit signals; The control unit is used to generate a switching control signal for the liquid cooling component and the air cooling component according to the temperature data detected by the temperature detection unit 9.

[0063] Optionally, the chassis liquid separation component 4 is a liquid separation plate, and a liquid storage space for separating liquid to each of the cooling conduction structures 5 is formed inside the liquid separation plate.

[0064] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0065] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0066] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An air-cooling and liquid-cooling switching method, characterized in that Applicable to an air-cooled and liquid-cooled adaptive server chassis, the server chassis comprises a chassis body, the chassis body comprises an air-cooled component and a liquid-cooled component, and a heating unit and a control unit are accommodated inside the chassis body; The liquid cooling assembly includes a liquid inlet and a liquid outlet provided on the chassis body and respectively used to communicate with a liquid cooling source; the liquid inlet and the liquid outlet are respectively communicated with the internal space of the chassis liquid separation component; the liquid cooling assembly also includes a cooling conduction structure provided on each of the heating units, each of the cooling conduction structures is respectively provided with a fluid connector, and the fluid connector is provided with a connection inlet and a connection outlet for communicating with the chassis liquid separation component; the liquid cooling assembly is used to transport a cooling medium to the cooling conduction structure when starting; The air cooling assembly includes a fan module; a fin structure is formed on the side of the cooling structure away from the heating unit, so that a plurality of air ducts are formed on the cooling structure through the fin structure, and the fan module is used to deliver air cooling air into the air duct when started; The cooling structures are respectively provided with temperature detection units connected to the control unit signals; The method comprises: Generating a switching control signal for the liquid cooling component and the air cooling component according to the temperature data detected by the temperature detection unit, including: After the liquid cooling component is started, the heating unit corresponding to each temperature detection unit and the temperature control value set for the corresponding heating unit are obtained, wherein the heating unit corresponding to each temperature detection unit is the heating unit corresponding to the cooling structure corresponding to each temperature detection unit; Determine whether there is an abnormal cooling structure where the temperature data detected by the temperature detection unit reaches a set temperature control value; If so, determine whether there is an abnormality in the liquid cooling component based on the design parameters of the liquid cooling component and the temperature difference of the abnormal cooling structure; If so, the liquid cooling component is controlled to stop, and the air cooling component is controlled to start.

2. The air-cooling and liquid-cooling switching method according to claim 1, wherein The method further comprises: Obtaining a temperature control value set for a different temperature rise rate of each of the heating units; The step of determining whether there is an abnormal cooling structure in which the temperature data detected by the temperature detection unit reaches a set temperature control value comprises: Acquire the temperature data detected by each of the temperature detection units, and calculate the current temperature rise rate corresponding to each of the heating units; According to the current temperature rise rate corresponding to each heating unit, obtaining the current temperature control value corresponding to each heating unit; It is determined whether the current temperature of the cooling structure corresponding to each of the heating units reaches the current temperature control value to determine whether there is an abnormal cooling structure.

3. The air-cooling and liquid-cooling switching method according to claim 2, wherein After the step of judging whether the current temperature of the cooling structure corresponding to each of the heating units reaches the current temperature control value to determine whether there is an abnormal cooling structure, the method further includes: Generate a temperature sampling period according to the difference between the current temperature of the cooling structure corresponding to each of the heating units and the current temperature control value; When the temperature sampling period is reached, the step of obtaining the temperature data detected by each temperature detection unit is performed again, and the step of determining whether the current temperature of the heat conduction structure corresponding to each heating unit reaches the current temperature control value to determine whether there is an abnormal heat conduction structure is performed.

4. The air-cooling and liquid-cooling switching method according to claim 3, characterized in that The method further includes: Comparing the temperature difference data detected by each temperature detection unit before and after the liquid cooling component is switched to the air cooling component to form a temperature difference data matrix, where the temperature difference data is the difference between the temperature data of the same heat conduction structure before the liquid cooling component is switched to the air cooling component and the temperature data after the liquid cooling component is switched to the air cooling component; Determining the heating units with abnormal operation according to the distribution positions of the temperature difference data in the temperature difference data matrix and the positions of the temperature difference data assigned as negative numbers or 0; Determining the heat conduction structures with abnormal operation according to the distribution positions of the temperature difference data in the temperature difference data matrix and the positions of the temperature difference data assigned as positive numbers; Generating an over-temperature control strategy according to the heating units with abnormal operation and the heat conduction structures with abnormal operation.

5. The air-cooling and liquid-cooling switching method according to claim 4, wherein The step of comparing the temperature difference data detected by each temperature detection unit before and after the liquid cooling component is switched to the air cooling component to form a temperature difference data matrix includes: Arranging the heating units to form a monitoring matrix; Obtaining the temperature data detected by the temperature detection units provided for the heat conduction structures corresponding to each heating unit, and arranging the temperature data collected at the same acquisition time point to form a temperature data matrix according to the positions of the heating units in the monitoring matrix; Calculating the temperature difference data matrix according to the temperature data matrices before and after the liquid cooling component is switched to the air cooling component.

6. The air-cooling and liquid-cooling switching method according to claim 4, wherein The step of generating an over-temperature control strategy according to the heating units with abnormal operation and the heat conduction structures with abnormal operation includes: Determining the overlapping elements of the temperature difference data corresponding to the heating units with abnormal operation and the temperature difference data corresponding to the heat conduction structures with abnormal operation in the temperature difference data matrix, and determining the target heating unit according to the overlapping elements; After adjusting the liquid cooling flow control value and the fan module speed control value of the target heating unit to the maximum values respectively, triggering an over-temperature timing for the target heating unit; Detecting the operating parameters of the target heating unit, where the operating parameters include the liquid cooling flow rate, temperature, fan module speed, over-temperature timing duration corresponding to the target heating unit, and the key heating processes of the target heating unit; Inputting the operating parameters into a control decision model to calculate whether to trigger a prompt to close the key heating process in the control decision model.

7. The air-cooling and liquid-cooling switching method according to claim 6, characterized in that, The step of inputting the operating parameters into a control decision model to calculate whether to trigger a prompt to close the key heating process in the control decision model includes: Performing a thermal risk score according to the operating parameters: ； wherein, is the thermal risk score; and are the thermal risk coefficients respectively, and both are greater than 0; and are the weight coefficients respectively, and both are greater than 0; is the target liquid cooling flow rate, is the actual liquid cooling flow rate, is the actual temperature of the target heating unit, is the target temperature of the target heating unit, is the actual rotation speed of the fan module, is the target rotation speed of the fan module related to the actual temperature of the target heating unit; is the over-temperature timing duration; When When the preset risk score is reached, a prompt to close the key heat - generating process is triggered in the control decision - making model; Among them, the key heating processes of the target heating unit are determined with reference to the following method: ； Among them, is the thermal contribution degree of process P, is the instantaneous power consumption of process P, is the proportion of the active time of process P; i is the process number of the target heating unit, and N is the total number of processes running on the target heating unit. , where the key heating process is the process whose thermal contribution degree exceeds the preset thermal contribution degree.

8. An air-cooled and liquid-cooled adaptive server chassis, characterized in that, Applying the air cooling and liquid cooling switching method according to any one of claims 1 to 7; the server chassis includes a chassis main body, the chassis main body includes an air cooling component and a liquid cooling component, and a heating unit and a control unit are accommodated inside the chassis main body; The liquid cooling assembly includes a liquid inlet and a liquid outlet provided on the chassis body and respectively used to communicate with a liquid cooling source; the liquid inlet and the liquid outlet are respectively communicated with the internal space of the chassis liquid separation component; the liquid cooling assembly also includes a cooling conduction structure provided on each of the heating units, each of the cooling conduction structures is respectively provided with a fluid connector, and the fluid connector is provided with a connection inlet and a connection outlet for communicating with the chassis liquid separation component; the liquid cooling assembly is used to transport a cooling medium to the cooling conduction structure when starting; The air cooling assembly includes a fan module; a fin structure is formed on the side of the cooling structure away from the heating unit, so that a plurality of air ducts are formed on the cooling structure through the fin structure, and the fan module is used to deliver air cooling air into the air duct when started; The cooling structures are respectively provided with temperature detection units connected to the control unit signals; The control unit is used to generate a switching control signal for the liquid cooling component and the air cooling component according to the temperature data detected by the temperature detection unit.

9. The air-cooled and liquid-cooled adaptive server chassis according to claim 8, wherein The chassis liquid separation component is a liquid separation plate, and a liquid storage space for separating liquid to each of the cooling structures is formed inside the liquid separation plate.

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