Server cabinet
By introducing an insulation layer and a water distributor cooling system into the server rack, the problem of increased resistance caused by the temperature rise of the busbar was solved, thereby achieving reduced safety and power loss of the busbar.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-03-17
AI Technical Summary
Increased temperature in the busbars of a server rack leads to increased resistance, which in turn results in greater power loss.
An insulating layer is sandwiched between the conductive bars, and water distributors are installed on both sides of the conductive bars for cooling. The conductive bars and water distributors are connected by insulating heat-conducting layers and insulating fasteners to improve heat exchange efficiency.
It effectively prevents short circuits in the busbars, reduces their footprint, and significantly lowers the resistance of the busbars, thus reducing power loss.
Smart Images
Figure CN224006960U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of server technology, and more specifically, to a server rack. Background Technology
[0002] As server power consumption increases, server racks typically incorporate busbars to mitigate the problems of excessive current and power loss. However, when the rack's power is high, the temperature of the busbars also rises. As the temperature of the busbars increases, their resistance also increases, leading to greater power loss. Utility Model Content
[0003] This application provides a server rack to address the problem of increased power loss in related technologies.
[0004] The server rack in this embodiment of the application includes:
[0005] At least one server, the server having a positive terminal, a negative terminal and a cold plate, the cold plate having an inlet and an outlet;
[0006] Two conductive busbars, one of which is connected to at least one of the positive terminals of the server, and the other of which is connected to at least one of the negative terminals of the server;
[0007] An insulating layer, sandwiched between the two conductive bars; and
[0008] Two water distributors are respectively attached to two of the conductive bars. Each water distributor has at least one opening. At least one opening of one of the water distributors is connected to the inlet of the cold plate of at least one server, and at least one opening of the other water distributor is connected to the outlet of the cold plate of at least one server.
[0009] According to some embodiments of this application, the two conductive bars are arranged side by side along the thickness direction of the conductive bars, and the two water distributors are respectively located on the opposite side of the two conductive bars.
[0010] According to some embodiments of this application, the conductive busbar is elongated and has a first part and a second part connected to each other along its width direction. The thickness of the second part is greater than the thickness of the first part. The first parts of the two conductive busbars are respectively connected to the positive terminal and the negative terminal of the server. The two water distributors are respectively located on opposite sides of the second parts of the two conductive busbars.
[0011] According to some embodiments of this application, an insulating and heat-conducting layer is also sandwiched between the corresponding water distributor and the second part.
[0012] According to some embodiments of this application, the corresponding water distributor and the second part are projected onto a target plane as a first projection and a second projection, respectively. The first projection falls within the second projection, or the first projection coincides with the second projection.
[0013] The target plane is perpendicular to the thickness direction of the conductive busbar.
[0014] According to some embodiments of this application, the surfaces of the first portions of the two conductive busbars facing each other are called first surfaces, and the surfaces of the second portions of the two conductive busbars facing each other are called second surfaces.
[0015] The first surface of one of the conductive busbars is flush with the second surface.
[0016] According to some embodiments of this application, an insulating and heat-conducting layer is also sandwiched between the corresponding water distributor and the conductive bar.
[0017] According to some embodiments of this application, the water distributor is made of a metallic material, and the insulating and heat-conducting layer is made of aluminum nitride or aluminum oxide.
[0018] According to some embodiments of this application, the two conductive bars and / or the corresponding conductive bars are connected to the water distributor by insulating fasteners.
[0019] According to some embodiments of this application, the number of insulating fasteners is multiple, and they are arranged at intervals along the length direction of the conductive busbar.
[0020] An embodiment of the above application has at least the following advantages or beneficial effects:
[0021] In this embodiment of the server rack, on the one hand, since an insulating layer is sandwiched between the two conductive bars, the two conductive bars will not only avoid short circuits, but the distance between the two conductive bars is also shortened, reducing the volume occupied by the two conductive bars in the rack; on the other hand, the two water distributors are respectively attached to the two conductive bars, which can cool the conductive bars, significantly reducing the resistance of the conductive bars that increases due to temperature rise, thereby reducing power loss. Attached Figure Description
[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.
[0023] Figure 1The diagram shown is of a server rack.
[0024] Figure 2 This is a 3D schematic diagram of the server.
[0025] Figure 3 The diagram shows the assembly of two conductive busbars, two water distributors, an insulating layer, and two insulating and heat-conducting layers.
[0026] Figure 4 The diagram shows along Figure 3 A cross-sectional view along section line AA.
[0027] Figure 5 The diagram shown is a three-dimensional schematic of the water distributor.
[0028] The reference numerals in the attached figures are explained as follows:
[0029] 100. Server
[0030] 110. Positive extreme
[0031] 120. Negative extreme
[0032] 130. Cold-rolled steel plate
[0033] 131. Imports
[0034] 132. Export
[0035] 200, Conductor Busbar
[0036] 200a, positive electrode conductor bus
[0037] 200b, negative electrode conductor bus
[0038] 210. Part One
[0039] 211. First Surface
[0040] 220. Part Two
[0041] 221. Second Surface
[0042] 300, Insulation layer
[0043] 400. Water distributor
[0044] 400a, First water distributor
[0045] 400b, Second water distributor
[0046] 410. Opening
[0047] 500, Insulating and Thermally Conductive Layer
[0048] 600. Insulating fasteners Detailed Implementation
[0049] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.
[0050] It is understood that the terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.
[0051] like Figures 1 to 3 , Figure 5 As shown, the server rack of this embodiment includes at least one server 100, two conductive busbars 200, an insulating layer 300, and two water distributors 400. The server 100 has a positive terminal 110, a negative terminal 120, and a cold plate 130, with an inlet 131 and an outlet 132. One conductive busbar 200 is connected to the positive terminal 110 of at least one server 100, and the other conductive busbar 200 is connected to the negative terminal 120 of at least one server 100. The insulating layer 300 is sandwiched between the two conductive busbars 200. The two water distributors 400 are respectively attached to the two conductive busbars 200. Each water distributor 400 has at least one opening 410, with one opening 410 communicating with the inlet 131 of the cold plate 130 of at least one server 100, and the other opening 410 communicating with the outlet 132 of the cold plate 130 of at least one server 100.
[0052] In this embodiment of the server rack, on the one hand, since an insulating layer 300 is sandwiched between the two conductive bars 200, the two conductive bars 200 will not only avoid short circuits, but the distance between the two conductive bars 200 is also shortened, reducing the volume occupied by the two conductive bars 200 in the rack; on the other hand, the two water distributors 400 are respectively attached to the two conductive bars 200, which can cool the conductive bars 200, significantly reducing the resistance of the conductive bars 200 due to temperature rise, thereby reducing power loss.
[0053] like Figure 1As shown, the number of servers 100 can be one or more, where "multiple" refers to two or more. When there are multiple servers 100, they can be arranged along the height of the rack.
[0054] The two busbars 200 are defined as positive busbar 200a and negative busbar 200b, respectively. The positive terminals 110 of the multiple servers 100 are connected to the positive busbar 200a, and the negative terminals 120 of the multiple servers 100 are connected to the negative busbar 200b. That is to say, the multiple servers 100 are connected in parallel to the two busbars 200, and the two busbars 200 are used to supply power to the multiple servers 100.
[0055] Understandably, the number of openings 410 in each distributor 400 can be the same as the number of servers 100. For example, each distributor 400 has multiple openings 410, and two distributors 400 are defined as a first distributor 400a and a second distributor 400b, respectively. The multiple openings 410 of the first distributor 400a are connected to the inlets 131 of the cold plates 130 of the multiple servers 100, and the multiple openings 410 of the second distributor 400b are connected to the outlets 132 of the cold plates 130 of the multiple servers 100. The coolant can circulate sequentially through the first distributor 400, the cold plates 130, and the second distributor 400.
[0056] Figure 3 and Figure 4 As shown, two conductive bars 200 are arranged side by side along the thickness direction of the conductive bars 200, and two water distributors 400 are located on opposite sides of the two conductive bars 200.
[0057] In the embodiments of this application, the surface area of one side of the conductive busbar 200 in the thickness direction is larger, and the water distributor 400 is located on the side of the conductive busbar 200 with the larger area, which can improve the heat exchange efficiency between the water distributor 400 and the conductive busbar 200, thereby significantly improving the cooling speed of the water distributor 400 on the conductive busbar 200.
[0058] In one embodiment, the conductive busbar 200 is elongated. Along the width direction of the conductive busbar 200, the conductive busbar 200 has a first portion 210 and a second portion 220 that are connected to each other. The thickness of the second portion 220 is greater than the thickness of the first portion 210. The first portions 210 of the two conductive busbars 200 are respectively connected to the positive terminal 110 and the negative terminal 120 of the server 100. The two water distributors 400 are respectively located on the opposite side of the second portions 220 of the two conductive busbars 200.
[0059] like Figure 4As shown, for example, the first water distributor 400a is located on the side of the second part 220 of the negative conductive busbar 200b facing away from the positive conductive busbar 200a, and the second water distributor 400b is located on the side of the second part 220 of the positive conductive busbar 200a facing away from the negative conductive busbar 200b.
[0060] The thickness of the second part 220 is greater than that of the first part 210, therefore the temperature rise of the second part 220 is higher. In the embodiments of this application, the two water distributors 400 are respectively located on the opposite side of the second part 220 of the two conductive bars 200, that is, the water distributor 400 corresponds to the second part 220 of the conductive bar 200. The heat generated by the second part 220 can be absorbed by the water distributor 400 in time, thereby improving the heat exchange efficiency.
[0061] In one embodiment, the orthographic projections of the corresponding water distributor 400 and the second part 220 on a target plane are respectively a first projection and a second projection, the first projection falling within the second projection, or the first projection coinciding with the second projection; wherein, the target plane is perpendicular to the thickness direction of the conductive busbar 200.
[0062] Please continue reading. Figure 4 The surfaces of the first portions 210 of the two conductive bars 200 facing each other are called the first surface 211, and the surfaces of the second portions 220 of the two conductive bars 200 facing each other are called the second surface 221; the first surface 211 and the second surface 221 of one conductive bar 200 are flush.
[0063] like Figure 4 As shown, an insulating and thermally conductive layer 500 is sandwiched between the corresponding water distributor 400 and the second part 220. The insulating and thermally conductive layer 500 is attached to the second part 220, and the water distributor 400 is attached to the side surface of the insulating and thermally conductive layer 500 facing away from the second part 220. The insulating and thermally conductive layer 500 has both thermal conductivity and electrical insulation properties.
[0064] In this embodiment of the application, an insulating and heat-conducting layer 500 is provided between the water distributor 400 and the second part 220. The insulating and heat-conducting layer 500 can transfer the heat generated by the second part 220 to the water distributor 400 in a timely manner, thereby improving the heat exchange efficiency.
[0065] In one embodiment, the water distributor 400 is made of a metallic material, and the insulating and heat-conducting layer 500 is made of aluminum nitride or aluminum oxide.
[0066] In the embodiments of this application, the water distributor 400 is made of metal material, and the insulating and heat-conducting layer 500 is made of aluminum nitride or aluminum oxide. Aluminum nitride or aluminum oxide has high thermal conductivity and excellent electrical insulation properties. Therefore, the insulating and heat-conducting layer 500 can not only play the role of heat conduction, but also play the role of insulating the water distributor 400 and the conductive busbar 200.
[0067] like Figure 3 As shown, the two conductive bars 200 are connected to each other and / or the corresponding conductive bars 200 are connected to the water distributor 400 by insulating fasteners 600.
[0068] For example, two conductive bars 200 are fastened together by one or more insulating fasteners 600, and the conductive bars 200 are fastened together with the water distributor 400 by one or more insulating fasteners 600.
[0069] In the embodiments of this application, the connection between the two conductive bars 200 and the water distributor 400 is improved by using insulating fasteners 600 to connect the two conductive bars 200 and the water distributor 400.
[0070] In one embodiment, the insulating fastener 600 is a ceramic screw, but is not limited thereto.
[0071] like Figure 3 As shown, there are multiple insulating fasteners 600, which are arranged at intervals along the length of the conductive busbar 200.
[0072] In summary, the advantages and beneficial effects of the server rack 100 in this application embodiment include at least the following:
[0073] In this embodiment of the server 100 rack, on the one hand, since an insulating layer 300 is sandwiched between the two conductive bars 200, the two conductive bars 200 will not only avoid short circuits, but the distance between the two conductive bars 200 is also shortened, reducing the volume occupied by the two conductive bars 200 in the rack; on the other hand, the two water distributors 400 are respectively attached to the two conductive bars 200, which can cool the conductive bars 200, significantly reducing the resistance of the conductive bars 200 due to temperature rise, thereby reducing power loss.
[0074] It is understood that the various embodiments / implementations provided in this application can be combined with each other without creating contradictions, and will not be described one by one here.
[0075] In the embodiments of this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.
[0076] In the description of the embodiments of the application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the application.
[0077] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the claims. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0078] The above are merely preferred embodiments of the application examples and are not intended to limit the application examples. For those skilled in the art, the application examples can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the application examples should be included within the protection scope of the application examples.
Claims
1. A server cabinet, characterized in that, The application relates to a server cooling device. The server cooling device comprises: at least one server (100) having a positive terminal (110), a negative terminal (120) and a cold plate (130) with an inlet (131) and an outlet (132); two conductive strips (200), one of which is connected with the positive terminal (110) of the at least one server (100), and the other of which is connected with the negative terminal (120) of the at least one server (100); an insulating layer (300) arranged between the two conductive strips (200); and two water distributors (400) respectively attached to the two conductive strips (200), the water distributor (400) having at least one opening (410), wherein the at least one opening (410) of one of the water distributors (400) is in communication with the inlet (131) of the cold plate (130) of the at least one server (100), and the at least one opening (410) of the other water distributor (400) is in communication with the outlet (132) of the cold plate (130) of the at least one server (100).
2. The server cabinet of claim 1, wherein, The two conductive strips (200) are arranged side by side along the thickness direction of the conductive strips (200), and the two water distributors (400) are respectively located on the sides of the two conductive strips (200) away from each other.
3. The server cabinet of claim 2, wherein, The conductive strip (200) is long strip-shaped, and along the width direction of the conductive strip (200), the conductive strip (200) has a first part (210) and a second part (220) connected with each other, the thickness of the second part (220) is greater than that of the first part (210), the first parts (210) of the two conductive strips (200) are respectively connected with the positive terminal (110) and the negative terminal (120) of the server (100), and the second parts (220) of the two conductive strips (200) are respectively located on the sides of the second parts (220) of the two conductive strips (200) away from each other.
4. The server cabinet of claim 3, wherein, An insulating and heat-conducting layer (500) is arranged between the corresponding water distributor (400) and the second part (220).
5. The server cabinet of claim 3, wherein, The normal projection of the corresponding water distributor (400) and the second part (220) on a target plane is a first projection and a second projection respectively, the first projection falls within the second projection, or the first projection coincides with the second projection. The target plane is perpendicular to the thickness direction of the conductive strip (200).
6. The server cabinet of claim 3, wherein, The surfaces of the first parts (210) of the two conductive strips (200) facing each other are first surfaces (211), and the surfaces of the second parts (220) of the two conductive strips (200) facing each other are second surfaces (221). The first surface (211) of one of the conductive strips (200) is flush with the second surface (221).
7. The server cabinet of claim 1, wherein, An insulating and heat-conducting layer (500) is arranged between the corresponding water distributor (400) and the conductive strip (200).
8. The server cabinet of claim 7, wherein, The water distributor (400) is made of metal material, and the insulating heat-conducting layer (500) is made of aluminum nitride or aluminum oxide.
9. The server cabinet of claim 1, wherein, The two conductive rows (200) and / or the corresponding conductive row (200) and the water distributor (400) are connected through insulating fasteners (600).
10. The server cabinet of claim 9, wherein, The number of the insulating fasteners (600) is multiple, and the insulating fasteners (600) are arranged at intervals along the length direction of the conductive row (200).