CN113473797B - A server cabinet and its multi-channel servers - Google Patents

Abstract

The invention discloses a multipath server which comprises a chassis, a first air inlet arranged on a front window of the chassis, a second air inlet arranged on a rear window of the chassis, a first air outlet arranged on the left side wall of the chassis, a second air outlet arranged on the right side wall of the chassis, and a plurality of CPUs, wherein the first air inlet and the second air inlet are communicated with the first air outlet and the second air outlet at the same time, and the CPUs are respectively distributed in air channels of the first air inlet and the first air outlet, in air channels of the first air inlet and the second air outlet, in air channels of the second air inlet and the first air outlet, and in air channels of the second air inlet and the second air outlet. The invention can avoid heat accumulation at the tail end of the air duct caused by sharing the air duct by the multi-path server, ensure the balance of the whole heat dissipation effect of the multi-path server, and fully exert the performance of the multi-path server. The invention also discloses a server cabinet, which has the beneficial effects as described above.

Description

A server cabinet and its multi-channel servers

technical field

The invention relates to the technical field of servers, in particular to a multi-channel server. The invention also relates to a server cabinet.

Background technique

Driven by the trends of cloud computing, mobility, social networking and big data, the server industry is changing rapidly. From social governance to digital life, from economic development to scientific research, servers have penetrated into all aspects in many ways.

Compared with traditional two-socket servers, 4-socket servers, 8-socket servers and even 16-socket servers have more CPU (Central Processing Unit, central processing unit), memory, and expansion card slot resources. Take a four-socket server as an example. Compared with two two-socket servers, one four-socket server has twice the performance and lower power consumption, which can effectively reduce costs. Four-socket server occupies an important position in the server market by virtue of its powerful resource allocation and scalability.

However, due to the limitations of important factors such as heat dissipation and structure, the current conventional four-socket servers often cannot exert the maximum performance, and it is difficult to maximize the utilization of resource devices such as PCIE boards and NVME hard disks. In the prior art, four-way servers usually use the front window of the chassis as the air inlet, and the rear window of the chassis as the air outlet, so that the server is air-cooled and dissipated through the single linear air duct of "forward and rear". At the same time, the four-way CPU is divided into two rows to form a 2×2 array and set in the middle of the chassis, leaving the front and rear sides of the chassis for installing PCIE boards, NVME hard disks and other resource devices. This distribution structure makes each CPU share the same air duct. After entering the air inlet, the cold air will first pass through the CPU, PCIE board, NVME hard disk and other resource devices near the front window of the chassis, and then pass through the rear window of the chassis. CPU, PCIE boards, NVME hard disk and other resource devices, so that the heat generated by the heat-generating components on the front side of the chassis will spread to the rear side of the chassis through the air duct, and the heat will quickly accumulate at the rear side of the chassis, making it difficult to quickly discharge, resulting in The heat dissipation effect of resource devices such as the CPU, PCIE boards, and NVME hard disks on the rear window of the chassis is poor. The overall heat dissipation effect of the server is uneven, and the performance of multi-channel servers cannot be fully utilized.

Therefore, it is a technical problem faced by those skilled in the art how to avoid heat accumulation at the end of the air duct caused by multiple servers sharing the air duct and ensure the overall cooling effect of the multi-channel servers is balanced.

Contents of the invention

The purpose of the present invention is to provide a multi-channel server, which can avoid the accumulation of heat at the end of the air channel caused by the multi-channel servers sharing the air channel, and ensure the overall cooling effect of the multi-channel servers is balanced. Another object of the present invention is to provide a server cabinet.

In order to solve the above technical problems, the present invention provides a multi-channel server, which includes a chassis, a first air inlet opened on the front window of the chassis, a second air inlet opened on the rear window of the chassis, and a second air inlet opened on the left side of the chassis. The first air outlet on the side wall, the second air outlet on the right side wall of the chassis, and several CPUs, the first air inlet and the second air inlet are simultaneously connected with the first air outlet and the second air inlet. The second air outlet is connected, and the CPUs are respectively distributed in the air ducts of the first air inlet and the first air outlet, and in the air ducts of the first air inlet and the second air outlet , in the air passage between the second air inlet and the first air outlet, and in the air passage between the second air inlet and the second air outlet.

Preferably, it also includes several air guiding wall plates arranged in the case and used to form each of the air ducts, and each of the CPUs is clamped and installed between two adjacent air guiding wall plates.

Preferably, it further includes a medial partition arranged in the chassis and facing the first air inlet and the second air inlet respectively on both side surfaces, for separating the incoming airflows traveling in opposite directions.

Preferably, each of the CPUs is distributed obliquely along its diagonal in the case, so that each of the air guiding wall plates forms an air duct with an acute bending angle.

Preferably, it also includes several sideband signal devices arranged in the chassis and connected to each of the CPUs, and each of the sideband signal devices is distributed at the center of each of the CPUs.

Preferably, it also includes several hot-swappable resource devices arranged in the chassis and connected to each of the CPU signals, and each of the hot-swappable resource devices is respectively distributed in the front window and rear window area of the chassis .

The present invention also provides a server cabinet, comprising a cabinet body and several multi-channel servers according to any one of the above-mentioned cabinets vertically stacked and installed in the cabinet body.

Preferably, both side walls of the cabinet are provided with several exhaust fans for extracting air from the first air outlet and the second air outlet of the multi-channel server on each floor.

Preferably, both sides of the cabinet are provided with airtight heat dissipation channels extending vertically and respectively communicating with the first air outlet and the second air outlet of the multi-channel server on each floor, and the top of the cabinet An exhaust duct communicating with each of the sealed heat dissipation passages is provided.

Preferably, the cabinet is provided with a fan control module for controlling the working conditions of the exhaust fans according to the heat dissipation of the multi-channel servers on each floor.

The multi-channel server provided by the present invention mainly includes a chassis, a first air inlet, a second air inlet, a first air outlet, a second air outlet and several CPUs. Among them, the first air inlet is opened at the front window of the chassis, the second air inlet is opened at the rear window of the chassis, the first air outlet is opened at the left side wall of the chassis, and the second air outlet is opened at the right side of the chassis Position, that is, the chassis as a whole has two air inlets on the front and rear sides and two air outlets on the left and right sides. Moreover, inside the case, the first air inlet is connected with the first air outlet and the second air outlet at the same time, and the second air inlet is also connected with the first air outlet and the second air outlet at the same time, thereby forming four independent air outlets inside the case. The air duct allows cold air to enter from the air inlets on the front and rear sides of the chassis at the same time, and then divide into two streams to flow to the air outlets on the left and right sides of the chassis. Each CPU is respectively distributed in the four air ducts formed inside the chassis. Since the four air ducts are independent, the cold air experienced by each CPU is also independent and does not affect each other. The heat generated by each CPU comes from different air ducts. The air duct is discharged to the outside, so as to avoid the accumulation of heat at the end of the air duct caused by the sharing of the air duct by multiple servers, and ensure the overall cooling effect of the multi-channel servers is balanced, so that the performance of the multi-channel servers can be fully utilized.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

FIG. 1 is a schematic structural diagram of a multi-channel server in a specific embodiment provided by the present invention.

Fig. 2 is a schematic structural diagram of a server cabinet in a specific embodiment provided by the present invention.

FIG. 3 is a side view of FIG. 2 .

Wherein, among Fig. 1-Fig. 3:

Chassis—1, first air inlet—2, second air inlet—3, first air outlet—4, second air outlet—5, CPU—6, guide wall—7, medial partition—8, side band Signal device—9, hot-swappable resource device—10, cabinet body—11, exhaust fan—12, airtight cooling channel—13, exhaust duct—14, fan control module—15.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

FIG. 1 is a schematic structural diagram of a multi-channel server in a specific embodiment provided by the present invention.

In a specific embodiment provided by the present invention, the multi-channel server mainly includes a chassis 1 , a first air inlet 2 , a second air inlet 3 , a first air outlet 4 , a second air outlet 5 and several CPUs 6 .

Wherein, the first air inlet 2 is opened at the front window position of the cabinet 1, the second air inlet 3 is opened at the rear window position of the cabinet 1, the first air outlet 4 is opened at the left side wall position of the cabinet 1, and the second air outlet 5 It is located on the right side wall of the chassis 1, that is, the chassis 1 as a whole has two air inlets on the front and rear sides and two air outlets on the left and right sides.

And, inside the chassis 1, the first air inlet 2 communicates with the first air outlet 4 and the second air outlet 5 at the same time, and the second air inlet 3 also communicates with the first air outlet 4 and the second air outlet 5 at the same time, so that Four independent air ducts are formed inside the chassis 1, so that cold air can enter from the air inlets on the front and rear sides of the chassis 1 at the same time, and then be divided into two streams to flow to the air outlets on the left and right sides of the chassis 1.

Simultaneously, each CPU6 is respectively distributed in the above-mentioned four air passages formed inside the cabinet 1. Since the four air passages are independent, the cold air experienced by each CPU6 is also independent and does not affect each other. The heat produced by each CPU6 is respectively from Different air ducts are discharged to the outside, so as to avoid heat accumulation at the end of the air duct caused by multi-channel servers sharing the air duct, and ensure the overall cooling effect of the multi-channel servers is balanced, so that the performance of the multi-channel servers can be fully utilized.

In order to facilitate the formation of four independent air passages in the cabinet 1 , in this embodiment, several air guiding wall plates 7 are arranged in the cabinet 1 . Specifically, two adjacent flow guide wall plates 7 form a group, and each group of flow guide wall plates 7 is arranged opposite to each other to form a channel, that is, a corresponding air channel. Apparently, there are 8 guide wall plates 7 in the cabinet 1, totally 4 groups, corresponding to 4 air ducts respectively.

Further, in order to ensure the stable installation of each CPU6 in each air duct, in this embodiment, each CPU6 is respectively clamped and installed in each group of flow guide wall plates 7, so that two adjacent flow guide wall plates 7. Separate CPU6 from its corresponding memory slot (DIMM, etc.), leaving only CPU6 in the air duct.

Considering that the first air inlet 2 and the second air inlet 3 are respectively arranged on the front window and the rear window of the chassis 1, that is, the front and rear sides facing each other in the same direction, this will cause two streams of cold air from the outside to flow from the chassis at the same time. After the front and rear sides of 1 enter, they collide and meet in the middle of the cabinet 1, which may generate relatively large noise and frictional loss. To this end, a medial partition 8 is added in the cabinet 1 in this embodiment. Specifically, the vertical partition 8 is arranged in the cabinet 1 along a direction perpendicular to the air intake direction of the cold air, and its two side surfaces face the first air inlet 2 and the second air inlet 3 respectively. So set, the cold air entering from the first air inlet 2 will be blocked by the surface of one side of the medial partition 8, and will be diverted to the first air outlet 4 and the second air outlet 5 on both sides. The cold air entering through the tuyere 3 will be blocked by the surface of the other side of the medial partition 8, and will be diverted to the first air outlet 4 and the second air outlet 5 on both sides.

Generally, the medial partition 8 is located in the middle of the first air inlet 2 and the second air inlet 3, so that the cold air entering from the first air inlet 2 is similar to the cold air entering from the second air inlet 3. Parameters such as the flow rate, path and distance, so as to improve the heat dissipation balance of each CPU6.

Continuing from the above, considering that the mediastinal plate 8 is perpendicular to the flow direction of the two cold airs, when the cold air collides with the mediastinal plate 8, it will encounter a 90° right-angle turning diversion, during which a large amount of air kinetic energy is lost, and Noise and frictional loss may be generated. For this, in this embodiment, each CPU 6 is evenly distributed in the case 1 , and specifically distributed along the diagonal of the case 1 in an "X" shape. In this way, the two guide wall plates 7 corresponding to each CPU 6 will be distributed obliquely, thereby forming an inclined air duct, that is, forming a certain acute angle with the first air inlet 2 and the second air inlet 3, such as 30°-60° °, etc., so as to prevent the cold air from entering from the first air inlet 2 and the second air inlet 3 and then vertically impinging on the medial diaphragm 8, and forming a "T"-shaped vertical split. The air duct guides the cold air to form an "eight" arc-shaped shunt in the chassis 1, which reduces the kinetic energy loss of the cold air during the shunt, and reduces the noise and friction loss generated.

In addition, considering that each CPU6 also needs to maintain a signal connection with sideband signal devices 9 such as BMC, PCH, CPLD, etc., in this embodiment, each sideband signal device 9 is specifically arranged at the center of each CPU6, that is, the opposite side of each CPU6. The center position of the corner connection line is set in this way, and each sideband signal device 9 is located at the center position of the motherboard in the chassis 1 as a whole. Compared with the prior art, the distance with the surrounding CPUs 6 has been greatly shortened, thus avoiding sideband signal equipment 9. With the problem of over-long signal traces, it reduces the difficulty of LAYOUT design while improving signal quality.

Not only that, in order to make full use of the resources of each CPU 6, several hot-swappable resource devices 10, such as PCIE boards and NVME hard disks, are added in the chassis 1 in this embodiment. Considering that both the front window and the rear window of the chassis 1 are provided with air inlets, in order to take into account the heat dissipation requirements of each hot-swap resource device 10, in this embodiment, each hot-swap resource device 10 is respectively distributed on the front window of the chassis 1 with the rear window area. Simultaneously, each hot-swappable resource device 10 can carry out hot-swappable operation in the cabinet 1, is conducive to carrying out hot maintenance; And, each hot-swappable resource device 10 can form signal connection with similar CPU6 easily, thereby improves resource utilization.

As shown in FIG. 2 and FIG. 3 , FIG. 2 is a schematic structural view of a server cabinet in a specific embodiment provided by the present invention, and FIG. 3 is a side view of FIG. 2 .

This embodiment also provides a server cabinet, which mainly includes a cabinet body 11 and several multi-channel servers. Wherein, the cabinet body 11 is the main structure of the server cabinet, and each multi-channel server is installed in the cabinet body 11 , and is distributed in layers along the vertical direction (height direction) in the cabinet body 11 . The specific content of the multi-channel server is the same as the above related content, and will not be repeated here.

Considering that the cabinet 1 of the multi-channel server on each floor is respectively provided with a first air outlet 4 and a second air outlet 5 on the left side wall and the right side wall, in order to cooperate with this, the present embodiment has two sides of the cabinet body 11. Several exhaust fans 12 are arranged on the side walls. Specifically, each exhaust fan 12 can be used to extract air from the chassis 1 of the multi-channel server on each floor, so that the cold air that has absorbed heat is drawn out from the first air outlet 4 and the second air outlet 5 into the cabinet body 11 respectively. . Generally, six or more exhaust fans 12 can be respectively arranged at the first air outlet 4 and the second air outlet 5 of each multi-channel server on each floor.

Furthermore, in order to quickly discharge the heat in the cabinet body 11 , this embodiment also provides airtight cooling channels 13 on both sides of the cabinet body 11 . Specifically, the airtight heat dissipation channel 13 extends vertically and communicates with the first air outlet 4 and the second air outlet 5 of the multi-channel servers on each floor respectively, so that the heat of the multi-channel servers on each floor can flow from the first air outlet respectively. The air outlet 4 and the second air outlet 5 are extracted into two airtight cooling channels 13 . At the same time, the present embodiment is also provided with an exhaust duct 14 on the top of the cabinet body 11, and the exhaust duct 14 communicates with the two closed heat dissipation channels 13, so that hot air can rise from the two closed heat dissipation channels 13 to the exhaust duct. 14, and then discharged to the outside world. Of course, each airtight heat dissipation channel 13 needs to be kept sealed, so as to avoid mixing of hot and cold air, improve heat dissipation efficiency, and reduce heat dissipation power consumption.

In addition, in this embodiment, thermal management interfaces are reserved in multi-channel servers on each floor, and a fan control module 15 is provided in the cabinet body 11 . Specifically, the fan control module 15 is mainly used to obtain the temperature of different areas in the multi-channel server on each floor from the heat dissipation management interface, and then adjust the working conditions of the exhaust fans 12 in the corresponding areas to speed up or reduce the ventilation efficiency. In this way, the heat dissipation of multi-channel servers at each layer can be precisely controlled.

In addition, when the cabinet 11 is not full of servers, in order to avoid air leakage, it is necessary to use baffles and other components to block the unused positions to ensure the sealing of the heat dissipation channels.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A multi-channel server is characterized in that it comprises a chassis (1), a first air inlet (2) that is opened on the front window of the chassis (1), a second air inlet that is opened on the rear window of the chassis (1). Air inlet (3), the first air outlet (4) opened on the left side wall of the chassis (1), the second air outlet (5) opened on the right side wall of the chassis (1), and several CPUs (6), the first air inlet (2) and the second air inlet (3) are simultaneously connected to the first air outlet (4) and the second air outlet (5), and each The CPU (6) is respectively distributed in the air ducts of the first air inlet (2) and the first air outlet (4), the first air inlet (2) and the second air outlet (5). ), in the air duct of the second air inlet (3) and the first air outlet (4), in the air duct of the second air inlet (3) and the second air outlet (5) ; It also includes a medial septum arranged in the chassis (1) and facing the first air inlet (2) and the second air inlet (3) on both sides respectively, for separating the air inlet airflows traveling in opposite directions. plate(8); The longitudinal partition (8) is located in the middle of the first air inlet (2) and the second air inlet (3), so that the cold air entering from the first air inlet (2) and the The cold air entering at the second air inlet (3) has similar flow rate, path and distance parameters, which improves the heat dissipation balance of the CPU (6) in each channel. 2. The multi-channel server according to claim 1, characterized in that, it also includes a plurality of guide wall plates (7) arranged in the casing (1) for forming each of the air ducts, each of which The CPU (6) is clamped and installed between two adjacent flow guide wall plates (7). 3. The multi-channel server according to claim 2, characterized in that, each of the CPUs (6) is distributed obliquely along its diagonal in the cabinet (1), so that each of the guide wall plates (7) Forming an air duct whose bending angle is an acute angle. 4. The multi-channel server according to claim 3, further comprising a plurality of sideband signal devices (9) arranged in the casing (1) and connected to each of the CPUs (6), And each of the sideband signal devices (9) is distributed at the center of each of the CPUs (6). 5. The multi-channel server according to claim 4, further comprising a plurality of hot-swappable resource devices (10) arranged in the casing (1) and connected to each of the CPUs (6) with signals , and each of the hot-swappable resource devices (10) is respectively distributed in the front window and rear window areas of the chassis (1). 6. A server cabinet, characterized in that it comprises a cabinet body (11) and several multi-channel servers according to any one of claims 1-5, which are vertically stacked and installed in the cabinet body (11) . 7. The server cabinet according to claim 6, characterized in that, the side walls on both sides of the cabinet body (11) are provided with a plurality of first air outlets (4 ) and the second air outlet (5) carry out the exhaust fan (12) of draft. 8. The server cabinet according to claim 7, characterized in that, both sides of the cabinet body (11) are provided with first air outlets (4) extending vertically and connected to the multi-channel servers on each floor respectively. ) and the second air outlet (5) communicated with the airtight heat dissipation channel (13), and the top of the cabinet (11) is provided with an exhaust duct (14) communicated with each of the airtight heat dissipation channels (13). 9. The server cabinet according to claim 8, characterized in that, the cabinet body (11) is provided with a device for controlling the working conditions of each exhaust fan (12) according to the heat dissipation conditions of the multi-channel servers on each floor. Fan control module (15).

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