CN217849917U

CN217849917U - Cold plate type liquid cooling cabinet and data center

Info

Publication number: CN217849917U
Application number: CN202221146711.6U
Authority: CN
Inventors: 张炳华; 李明江
Original assignee: Hebei Qinhuai Data Co Ltd
Current assignee: Hebei Qinhuai Data Co Ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-11-18
Anticipated expiration: 2032-05-12

Abstract

The application discloses a cold plate type liquid cooling cabinet and a data center, which can comprise heating equipment, a heat exchange pipe fitting, a heat conducting bar and a main contact head; the heating device is provided with a plurality of heating points; a circulating channel is arranged in the heat exchange pipe fitting, and a heat exchange medium circulates between the inside of the circulating channel and external refrigeration equipment; the heat conduction rows are multiple in number, one ends of the heat conduction rows are respectively contacted with at least one heating point, and the other ends of the heat conduction rows are connected with the general contact head; the total contact head is contacted with the heat exchange pipe fitting through a connecting component, so that the heat of the heating point sequentially passes through the heat conduction row and the total contact head to be transmitted to the heat exchange pipe fitting. This application need not plug refrigerant pipe, avoids the weeping risk.

Description

Cold plate type liquid cooling cabinet and data center

Technical Field

The application relates to the field of server equipment, in particular to a cold plate type liquid cooling cabinet and a data center.

Background

Due to various reasons such as lagging industrial development, complex refrigeration system, low operation and maintenance level and the like, the overall power consumption of the data center in China is high, the data center is in a very energy-saving operation state, a large amount of energy is wasted, along with the increasing of the power density of a single cabinet, the traditional refrigeration mode is not suitable, and the adoption of liquid cooling refrigeration becomes the final choice of data center refrigeration.

There are two main types of liquid cooling, one is called direct contact type liquid cooling, represented by immersion type liquid cooling, and the other is called indirect contact type liquid cooling, represented by cold plate type liquid cooling.

In the related technology, the cold plate type liquid cooling is to cling a hollow metal cold plate to a CPU shell of a core heating point, then to pass a flowing refrigerant through the hollow cold plate, and the refrigerant can take away heat when passing through the metal cold plate. The existing liquid cooling technology has the difficulty that when a refrigerant pipe is plugged in and pulled out, the leakage risk exists, the leakage risk cannot be completely avoided through means such as material or product process improvement, the existing scheme is realized through a self-sealing quick plugging connector, the cost of the scheme is high, the leakage risk cannot be completely avoided, and potential safety hazards exist when a data center runs.

Disclosure of Invention

An object of this application is to provide a cold plate formula liquid cooling rack and data center, avoids the weeping risk.

In order to achieve the above object, one aspect of the present application provides a cold plate type liquid cooling cabinet, which includes a heat generating device, a heat exchanging pipe, a heat conducting bar, and a main contact; the heating device is provided with a plurality of heating points; a circulating channel is arranged in the heat exchange pipe fitting, and a heat exchange medium circulates between the inside of the circulating channel and external refrigeration equipment; the heat conduction rows are multiple in number, one ends of the heat conduction rows are respectively contacted with at least one heating point, and the other ends of the heat conduction rows are connected with the general contact head; the total contact head is contacted with the heat exchange pipe fitting through a connecting assembly, so that the heat of the heating point sequentially passes through the heat conduction row and the total contact head is transmitted to the heat exchange pipe fitting.

As a further improvement of the above technical solution: the heat exchange pipe fitting comprises a pipe body and an inner heat conducting block; the inner heat conduction block is connected to the pipe body, one end of the inner heat conduction block is located in the circulation channel, the other end of the inner heat conduction block is located on the outer side of the pipe body, and the main contact is in contact with the other end of the inner heat conduction block.

As a further improvement of the technical scheme: one end of the heat conducting bar is connected with a heat conducting base; and a heat conduction material is filled between the heat conduction base and the heating point.

As a further improvement of the technical scheme: the cold plate type liquid cooling cabinet also comprises a cabinet body; the cabinet body is provided with a placing cavity and an installation cavity; the heating equipment is arranged in the placing cavity, and the heat exchange pipe fitting is arranged in the mounting cavity; the placing cavity and the mounting cavity are provided with through holes, so that the main contact head is in contact with the heat exchange pipe fitting through the through holes.

As a further improvement of the above technical solution: and a heat insulation film is arranged on the inner side surface of the mounting cavity.

As a further improvement of the above technical solution: threaded holes are formed in the two sides of the through hole of the cabinet body; the connecting component comprises a n-shaped plate and a screw; the screw penetrates through the n-shaped plate and is connected with the threaded hole, so that the n-shaped plate enables the main contact head to be in compression contact with the heat exchange pipe fitting.

As a further improvement of the above technical solution: the heating device and the through holes are respectively provided with a plurality of heating devices, the heating devices and the through holes are vertically arranged in the placing cavity at intervals, and the heating devices and the through holes are the same in number; the heating equipment and the through holes are located in the length range of the heat exchange pipe fitting.

As a further improvement of the above technical solution: the top end of the heat exchange pipe fitting is provided with a flow inlet, and the bottom end of the heat exchange pipe fitting is provided with a backflow port; the heat exchange pipe fitting is connected in series on a circulation loop of the external refrigeration equipment through the inflow port and the return port.

As a further improvement of the above technical solution: the two heat exchange pipe fittings are respectively positioned at two sides of the cabinet body; the two heat exchange pipe fittings are respectively contacted with the heating equipment through the main contact head and the heat conduction row.

In order to achieve the above object, another aspect of the present application further provides a data center including the above cold plate type liquid cooling cabinet.

Therefore, according to the technical scheme provided by the application, the circulation channel is arranged in the heat exchange pipe fitting, and heat of a heating point on the heating equipment sequentially passes through the heat conduction row and the main contact head to be transmitted to the heat exchange pipe fitting, so that heat exchange is carried out on the heat through a circulation medium in the heat exchange pipe fitting. So, set up heat transfer pipe fitting in the outside, through heat conduction row with total contact head and heat transfer pipe fitting contact heat transfer, do not have the refrigerant pipe direct with the point contact that generates heat to also need not plug refrigerant pipe, avoid having the weeping risk.

Further, the heat exchange pipe fitting can be by body and interior heat conduction piece constitute, can carry out the heat transfer with the rapid transmission of total contact heat to the heat transfer medium in the circulation channel through interior heat conduction piece promptly, can avoid regard as heat conduction part with whole body again, reduction in manufacturing cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an intercooler type liquid-cooled cabinet according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a half-section of a heat exchange tube according to an embodiment of the present disclosure;

FIG. 3 is a schematic axial view of a heat exchange tube according to an embodiment of the present disclosure;

FIG. 4 is a perspective structural view of an alternate embodiment cold plate liquid cooled cabinet provided herein;

FIG. 5 is an axial view of a cabinet according to an embodiment of the present disclosure;

FIG. 6 is an isometric illustration of a cold plate liquid cooled cabinet in accordance with another embodiment of the present disclosure;

in the figure: 1. a heat generating device; 2. a heat exchange tube; 21. a circulation channel; 22. a pipe body; 23. an inner heat conducting block; 24. a flow inlet; 25. a return port; 3. a heat conducting bar; 31. a thermally conductive base; 4. a main contact; 5. a connecting assembly; 51. a board shaped like a Chinese character 'ji'; 52. a screw; 6. a cabinet body; 61. a placement chamber; 62. a mounting cavity; 63. a through hole; 64. a threaded hole.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings. The use of terms herein such as "upper," "lower," "below," "first end," "second end," "one end," "another end," and the like, to denote relative spatial positions, is for convenience of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Furthermore, the terms "mounted", "disposed", "provided", "connected", "slidably connected", "fixed" and "sleeved" are to be understood in a broad sense. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the implementation mode aimed at, the existing cold plate type liquid cooling has the problem of liquid leakage risk caused by the plugging and unplugging of a refrigerant pipe, so that a cold plate type liquid cooling cabinet and a data center are urgently needed, a direct contact heat transfer mode is adopted, the plugging and unplugging of the refrigerant pipe are not needed, and the liquid leakage risk is avoided.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. It should be apparent that the embodiments described in this application are only some embodiments of the present application, and not all embodiments of the present application. All other embodiments, which can be obtained by a person skilled in the art without making any inventive step based on the embodiments in the present application, are within the scope of protection of the present application.

In an implementation manner, referring to the manner of fig. 1 to 6, a cold-plate type liquid-cooling cabinet may include a heat generating device 1, a heat exchanging pipe 2, a heat conducting bar 3 and a general contact 4. The heat generating device 1 has a plurality of heat generating points, which are main heat generating positions of the heat generating device 1. The heat exchange pipe fitting 2 is internally provided with a circulating channel 21, a heat exchange medium circulates between the inside of the circulating channel 21 and external refrigeration equipment, and heat on the heat exchange pipe fitting 2 is taken away through the circulating heat exchange medium. Wherein, heat conduction row 3 can specifically have a plurality ofly, and the one end of a plurality of heat conduction rows 3 is contacted with at least one heating point respectively, and the other end and the total contact 4 of a plurality of heat conduction rows 3 are connected, particularly, the one end of heat conduction row 3 can be based on the size and the calorific capacity of heating point and decide to contact with a heating point or contact with a plurality of heating points, and the other end of heat conduction row 3 carries out the heat transfer through same total contact 4 and the contact of heat transfer pipe fitting 2. The total contact 4 can contact with the heat exchange pipe fitting 2 through the connecting assembly 5, so that the heat of the heating point can be transmitted to the heat exchange pipe fitting 2 through the heat conducting bar 3 and the total contact 4 in sequence.

According to the above, the heating point of the heating device 1 of the present application is directly transferred to the heat exchange pipe fitting 2 through the heat conduction row 3 and the total contact head 4, so that the heat emitted from the heating point is cooled and exchanged by the heat exchange pipe fitting 2. Compared with the existing mode of plugging and unplugging the refrigerant pipe and the main pipeline, the mode of plugging and unplugging does not exist, and the possibility of liquid leakage risk is avoided.

In a specific implementation, the heat generating device 1 may be a server located in a data center, and the corresponding heat generating point may be a core heat generating point CPU/GPU of the server. It should be noted that, heat exchange pipe 2 and total contact 4 are for guaranteeing good heat transfer effect, and the terminal surface of heat exchange pipe 2 and total contact 4 mutual contact mutually supports, particularly, when heat exchange pipe 2 is the rectangle pipe fitting, heat exchange pipe 2 is the horizontally with total contact 4's contact surface, and corresponding total contact 4 also is the horizontally with heat exchange pipe 2's contact surface to guarantee great area of contact. Further, a heat conducting medium, such as heat conducting silicone grease or other heat conducting materials, may be filled between the main contact 4 and the heat exchange tube 2. The heat conduction row 3 is made of flexible materials, can be subjected to route planning according to a server structure, can be arranged inside the server, can also be arranged outside a server shell, conducts heat to the total contact head 4, and the total contact head 4 can be arranged outside the server or inside the server according to the server structure. The heat conducting bar 3 is formed by splicing materials with very high heat conducting coefficients, the thermal resistance is extremely low, the temperature difference between the total contact heads 4 connected with the heat conducting bar 3 is extremely low (less than 5 ℃), and the total contact heads 4 and the heat conducting bar 3 can be integrally formed by the same heat conducting material or formed by welding different materials.

Optionally, a flow inlet 24 is disposed at the top end of the heat exchange pipe 2, and a flow return 25 is disposed at the bottom end of the heat exchange pipe 2. The heat exchange tube 2 can be connected in series to the circuit of the external refrigeration system via the inlet 24 and the return 25.

In implementation, external refrigeration equipment can be the cooling tower equipment that data center is used commonly, and the heat transmission of heat transfer pipe fitting 2 department to the cooling tower through the circulation medium among the circulation return circuit cools down, and the circulation medium after the cooling drives the heat through heat transfer pipe fitting 2 once more to realize the lasting heat transfer of heat transfer pipe fitting 2 department.

The heat exchange pipe member 2 may be entirely made of a heat exchange material as a heat exchange portion. The heat exchange pipe member 2 may also be assembled (see fig. 2 and 3), for example, the heat exchange pipe member 2 may include a pipe body 22 and an inner heat conduction block 23, the inner heat conduction block 23 is connected to the pipe body 22, one end of the inner heat conduction block 23 is located in the circulation passage 21, the other end of the inner heat conduction block 23 is located outside the pipe body 22, and the main contact 4 is in contact with the other end of the inner heat conduction block 23.

In an implementation, the tube 22 is made of a non-heat-conducting material, the inner heat-conducting block 23 is made of a heat-conducting material, the inner heat-conducting block 23 and the tube 22 can be connected in a welding manner in advance, and a gap between the inner heat-conducting block 23 and the tube 22 is avoided. Thus, only the contact part of the heat exchange pipe 2 with the main contact 4 can be used as the heat conduction part, so that the overall manufacturing cost of the heat exchange pipe 2 is reduced.

Furthermore, in order to ensure the heat conduction effect between one end of the heat conduction bar 3 and the heating point, one end of the heat conduction bar 3 is connected with a heat conduction base 31. And a heat conduction material is filled between the heat conduction base 31 and the heating point.

The heat conducting base 31 can be formed by tightly pressing or welding the independent high heat conducting material and the heat conducting bar 3, or can be formed by directly and integrally forming the heat conducting bar 3, so that the heat resistance between the heat conducting base 31 and the heat conducting bar 3 is extremely small, and the heat conducting effect is improved. The heat of the heating point of the heating device 1 passes through the heat conducting base 31, and the core heat dissipation area is enlarged, so that the heat can be effectively transferred to the heat conducting base 31.

In one implementation, referring to fig. 4-6 together, the cold plate liquid cooled cabinet may further include a cabinet body 6. Wherein the cabinet body 6 can have a placing cavity 61 and a mounting cavity 62, the heat generating equipment 1 is installed in the placing cavity 61, and the heat exchange pipe fitting 2 is installed in the mounting cavity 62. The placing chamber 61 and the mounting chamber 62 may also be provided with through holes 63 so that the main contact 4 may be in contact with the heat exchange tube member 2 through the through holes 63.

Further, in order to avoid heat overflow of the heat exchange pipe 2 in the installation cavity 62 and increase the ambient temperature, a heat insulation film may be disposed on the inner side surface of the installation cavity 62.

Regarding the specific structure of the connecting assembly 5. In an achievable embodiment, the connecting assembly 5 may be a snap-fit assembly, so that the main contact 4 can be snapped onto the heat exchange tube 2 (or the inner heat conducting block 23 on the heat exchange tube 2) by means of the snap-fit assembly to be snapped into the cabinet 6. However, in actual use, because buckle assembly inserts the back through a lot of, when total contact 4 passes through buckle assembly crimping on heat exchange tube spare 2, can appear not hard up and lead to there being joint gap between total contact 4 and the heat exchange tube spare 2 to influence heat transfer effect.

In another practical embodiment, based on the problems generated by the above-mentioned embodiments, the present application provides the cabinet 6 with threaded holes 64 on both sides of the through hole 63. The connecting assembly 5 comprises a n-shaped plate 51 and a screw 52, and the screw 52 penetrates through the n-shaped plate 51 to be connected with the threaded hole 64, so that the n-shaped plate 51 presses the main contact head 4 into contact with the heat exchange pipe 2, and the screw 52 is rotated to control the contact degree between the main contact head 4 and the heat exchange pipe 2, thereby avoiding the existence of gaps.

Preferably, the heat-generating devices 1 and the through holes 63 may be respectively provided in a plurality, the plurality of heat-generating devices 1 and the plurality of through holes 63 are respectively vertically arranged in the placing cavity 61 at intervals, and the number of the heat-generating devices 1 and the number of the through holes 63 are the same. The plurality of heat generating devices 1 and the plurality of through holes 63 are all located within the length range of the heat exchange pipe fitting 2. The number of the heat exchange pipe fittings 2 is two, and the two heat exchange pipe fittings 2 are respectively positioned at two sides of the cabinet body 6; the two heat exchange pipe fittings 2 are respectively contacted with the heating equipment 1 through a general contact head 4 and a heat conduction row 3. So, can install many servers in a cabinet body 6 to adopt the combination of a plurality of heat transfer pipe fittings 2 to carry out the heat transfer to the server, the integrated level is higher, reduces area, and the radiating effect is better.

Based on the same inventive concept, the application also provides a data center which comprises the cold plate type liquid cooling cabinet. The data center and the cold plate type liquid cooling cabinet are designed by adopting the same technical concept, and the specific principle is not described herein again.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cold plate type liquid cooling cabinet is characterized by comprising heating equipment (1), a heat exchange pipe fitting (2), a heat conducting bar (3) and a total contact head (4);

the heating device (1) is provided with a plurality of heating points;

a circulation channel (21) is arranged in the heat exchange pipe fitting (2), and a heat exchange medium circulates between the inside of the circulation channel (21) and external refrigeration equipment;

the number of the heat conduction rows (3) is multiple, one end of each of the heat conduction rows (3) is in contact with at least one heating point, and the other end of each of the heat conduction rows (3) is connected with the general contact head (4);

the total contact head (4) is in contact with the heat exchange pipe fitting (2) through a connecting assembly (5), so that heat of the heating point sequentially passes through the heat conduction row (3) and the total contact head (4) and is transmitted to the heat exchange pipe fitting (2).

2. The cold plate liquid cooled cabinet according to claim 1, wherein the heat exchange tube (2) comprises a tube body (22) and an inner heat conducting block (23);

the inner heat conducting block (23) is connected to the pipe body (22), one end of the inner heat conducting block (23) is located in the circulating channel (21), the other end of the inner heat conducting block (23) is located outside the pipe body (22), and the main contact head (4) is in contact with the other end of the inner heat conducting block (23).

3. The cold plate liquid cooled cabinet according to claim 1, wherein one end of the heat conducting bank (3) is connected to a heat conducting base (31);

and a heat conduction material is filled between the heat conduction base (31) and the heating point.

4. A cold plate liquid cooled cabinet according to any of claims 1 to 3, further comprising a cabinet body (6);

the cabinet body (6) is provided with a placing cavity (61) and a mounting cavity (62);

the heat-generating equipment (1) is arranged in the placing cavity (61), and the heat exchange pipe fitting (2) is arranged in the mounting cavity (62);

the placing cavity (61) and the mounting cavity (62) are provided with through holes (63) so that the main contact head (4) is in contact with the heat exchange pipe fitting (2) through the through holes (63).

5. The cold plate liquid cooled cabinet of claim 4, wherein the mounting cavity (62) is provided with a thermally insulating film on an inside surface.

6. The cold plate liquid cooled cabinet according to claim 4, wherein the cabinet body (6) is provided with threaded holes (64) on both sides of the through hole (63);

the connecting component (5) comprises a n-shaped plate (51) and a screw (52);

the screw (52) penetrates through the n-shaped plate (51) and is connected with the threaded hole (64), so that the n-shaped plate (51) presses the main contact head (4) and the heat exchange pipe (2) into contact.

7. The cold plate type liquid cooling cabinet according to claim 4, wherein the number of the heat generating equipment (1) and the number of the through holes (63) are multiple, a plurality of the heat generating equipment (1) and a plurality of the through holes (63) are vertically arranged in the placing cavity (61) at intervals, and the number of the heat generating equipment (1) and the number of the through holes (63) are the same;

the plurality of the heating devices (1) and the plurality of the through holes (63) are all located in the length range of the heat exchange pipe fitting (2).

8. The cold plate liquid cooled cabinet according to claim 4, wherein the heat exchanging pipes (2) have inlet ports (24) at the top ends thereof, and return ports (25) at the bottom ends thereof;

the heat exchange pipe fitting (2) is connected in series on a circulation loop of the external refrigeration equipment through the inflow port (24) and the return port (25).

9. The cold plate liquid cooled cabinet according to claim 8, wherein there are two heat exchanging pipes (2), and the two heat exchanging pipes (2) are respectively located at two sides of the cabinet body (6);

the two heat exchange pipe fittings (2) are respectively contacted with the heating equipment (1) through the total contact head (4) and the heat conduction row (3).

10. A data center comprising the cold plate liquid cooled cabinet of any one of claims 1 to 9.