rack busbar

Abstract

This utility model discloses a rack bus, relating to the field of connector technology. The rack bus includes a housing, a first bus, a second bus, an insulating strip, and at least two heat dissipation fin assemblies. The housing has a length direction, a width direction, and a height direction. The housing includes a base plate and two side plates, which are connected to opposite sides of the base plate extending along the length direction. The side plates and the base plate enclose a mounting groove. The first bus is disposed in the mounting groove and extends along the length direction. The second bus is disposed in the mounting groove and extends along the length direction. The insulating strip is sandwiched between the first and second bus and extends along the length direction. At least one heat dissipation fin assembly is disposed on the side surface of the first bus away from the second bus, and the remaining heat dissipation fin assemblies are disposed on the side surface of the second bus away from the first bus. Each heat dissipation fin assembly includes multiple spaced-apart heat dissipation fins. This utility model provides a rack bus with good heat dissipation performance.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a rack bus. Background Technology

[0002] Rack buses are power distribution systems designed for data center server racks, conforming to the OCP (Open Compute Project) specification. The primary function of rack buses is to efficiently and securely transmit power from the power supply rack or PSU (Power Supply Unit) to the individual server nodes within the server rack via copper busbars.

[0003] Rack busbars typically connect multiple electrical components and carry a large current, which in turn increases heat generation. Existing rack busbars have insufficient heat dissipation performance and cannot dissipate the heat. Utility Model Content

[0004] The main purpose of this invention is to propose a rack bus that aims to improve the heat dissipation performance of the rack bus.

[0005] To achieve the above objectives, the present invention proposes a rack bus, which includes a housing, a first bus, a second bus, an insulating strip, and at least two heat dissipation fin groups. The housing has a length direction, a width direction, and a height direction. The housing includes a bottom plate and two side plates. The two side plates are connected to the bottom plate on opposite sides extending along the length direction, and the two side plates and the bottom plate enclose a mounting groove. The first bus is disposed in the mounting groove and extends along the length direction. The second bus is disposed in the mounting groove and extends along the length direction. The insulating strip is sandwiched between the first bus and the second bus and extends along the length direction. At least one heat dissipation fin group is disposed on the side surface of the first bus away from the second bus, and the remaining heat dissipation fin groups are disposed on the side surface of the second bus away from the first bus. Each heat dissipation fin group includes multiple spaced heat dissipation fins.

[0006] In one embodiment, each of the heat sinks extends along the height direction.

[0007] In one embodiment, the heat sink of the heat sink fin group located on the first busbar extends along the length direction, and the heat sink of the heat sink fin group located on the second busbar extends along the length direction.

[0008] In one embodiment, the first busbar and the heat dissipation fin group located on its surface are integrally formed, and the second busbar and the heat dissipation fin group located on its surface are integrally formed.

[0009] In one embodiment, the first busbar has a plurality of heat dissipation fin groups that extend along the length direction and are spaced apart, and the cumulative length of each heat dissipation fin group along the length direction is between 50% and 100% of the length of the first busbar along the length direction.

[0010] In one embodiment, the heat dissipation fin group on the first busbar includes a heat dissipation fin, the length of which along the length direction is between 99% and 100% of the length of the first busbar along the length direction.

[0011] In one embodiment, the minimum distance between the first busbar and the side plate is between 75% and 100% of the maximum height of any heat dissipation fin group on the first busbar along the width direction, and the minimum distance between the second busbar and the corresponding side plate is between 75% and 100% of the maximum height of any heat dissipation fin group on the second busbar along the width direction.

[0012] In one embodiment, the side plate has a plurality of first vents, which are spaced apart along the length direction and correspond to the heat dissipation fin group so that the heat dissipation fin group can communicate with the outside. Each first vent extends along the extension direction of the heat dissipation fin.

[0013] In one embodiment, the base plate has a plurality of second vents, which are spaced apart along the length direction and extend along the width direction.

[0014] In one embodiment, the distance between the two opposite sides of the second vent along the length direction is greater than twice the distance between two adjacent heat sinks.

[0015] The technical solution of this utility model increases the heat dissipation area of ​​the side surfaces of the first busbar and the second busbar by setting heat dissipation fin groups on the surfaces of the first busbar and the second busbar, thereby improving the heat dissipation effect of the first busbar and the second busbar, and ultimately improving the overall heat dissipation performance of the rack busbar. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a structure of an embodiment of the rack bus provided by this utility model;

[0018] Figure 2 A schematic diagram of another embodiment of the rack bus provided by this utility model, wherein the outer casing is removed;

[0019] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is a structural schematic diagram of another embodiment of the rack bus provided by this utility model.

[0021] Explanation of icon numbers:

[0022] 100. Rack busbar; 10. Housing; 11. Side panel; 111. First vent; 12. Base plate; 121. Second vent; 20. First busbar; 30. Second busbar; 40. Insulating strip; 50. Heat sink fin assembly; 51. Heat sink; L. Length direction; W. Width direction; H. Height direction; 60. Fixing component; Z1. Lateral area one; Z2. Lateral area two.

[0023] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] Rack buses are power distribution systems designed for data center server racks, conforming to the OCP (Open Compute Project) specification. The primary function of rack buses is to efficiently and securely transmit power from the power supply rack or PSU (Power Supply Unit) to the individual server nodes within the server rack via copper busbars.

[0028] Rack busbars typically connect multiple electrical components and carry a large current, which in turn increases heat generation. Existing rack busbars have insufficient heat dissipation performance and cannot dissipate the heat.

[0029] This utility model proposes a rack bus to improve the heat dissipation performance of the rack bus.

[0030] Please see Figures 1 to 4In one embodiment of this utility model, the rack bus 100 includes a housing 10, a first bus 20, a second bus 30, an insulating strip 40, at least two heat dissipation fin assemblies 50, and a plurality of fixing elements 60. The housing 10 has a length direction L, a width direction W, and a height direction H. The housing 10 includes a bottom plate 12 and two side plates 11. The side plates 11 are connected to the two opposite sides of the bottom plate 12 extending along the length direction L. The side plates 11 and the bottom plate 12 enclose each other to form a mounting groove. The first bus 20 is provided with... The first busbar 20 is installed in the mounting groove and extends along the length direction L; the second busbar 30 is installed in the mounting groove and extends along the length direction L; the insulating strip 40 is sandwiched between the first busbar 20 and the second busbar 30 and extends along the length direction L; at least one heat dissipation fin group 50 is installed on the side surface of the first busbar 20 opposite to the second busbar 30, and the remaining heat dissipation fin groups 50 are installed on the side surface of the second busbar 30 opposite to the first busbar 20, each heat dissipation fin group 50 including a plurality of spaced heat dissipation fins 51. Each fixing element 60 penetrates a portion of the first busbar 20 and the second busbar 30 respectively, and maintains or fixes the insulating strip 40 between the first busbar 20 and the second busbar 30.

[0031] In this embodiment, the outer casing 10 includes a base plate 12 and two side plates 11. One side plate 11 is connected to one side of the base plate 12 along the length direction L. The mounting groove formed by the base plate 12 and the two side plates 11 provides stable mechanical support for the first busbar 20, the second busbar 30 and the insulating strip 40. The material on the surface of the outer casing 10 can be selectively covered with an insulating layer to prevent leakage of electricity through the outer casing 10.

[0032] The first bus 20 and the second bus 30 are made of highly conductive and thermally conductive metals, such as copper alloys. In this example, the first bus 20 and the second bus 30 are cylindrical in shape, narrower at the top and wider at the bottom, without further limitation.

[0033] The outer casing 10, the first busbar 20, the second busbar 30, and the insulating strip 40 are all provided with several connection holes, and several connectors are respectively inserted through the connection holes to connect the above four parts into one unit. The insulating strip 40 is sandwiched between the two busbars to provide insulation, and can be made of insulating material, such as rubber.

[0034] The first busbar 20 has at least one heat dissipation fin group 50 on its side surface away from the second busbar 30, and the second busbar 30 has other heat dissipation fin groups 50 on its side surface away from the first busbar 20. The heat dissipation fin groups 50 can increase the contact area between the side surfaces of the first busbar 20 and the second busbar 30 and the air, thereby improving the heat dissipation effect of the first busbar 20 and the second busbar 30, and ultimately improving the heat dissipation performance of the rack busbar 100.

[0035] The heat sink fin assembly 50 can be a separate component or integrally formed with the first bus 20 and the second bus 30. When the heat sink fin assembly 50 is a separate component, the heat sink 51 can be connected and fixed to the surface of the first bus 20 and the second bus 30 by means such as soldering or bonding.

[0036] Furthermore, when the heat sink 51 extends along the length direction L, the heat sink 51 is extruded together with the first busbar 20; when the heat sink 51 extends along the height direction H, the heat sink 51 can be welded to the first busbar 20.

[0037] The technical solution of this utility model increases the heat dissipation area of ​​the side surfaces of the first busbar 20 and the second busbar 30 by setting heat dissipation fin groups 50 on the surfaces of the first busbar 20 and the second busbar 30, thereby improving the heat dissipation effect of the first busbar 20 and the second busbar 30, and ultimately improving the overall heat dissipation performance of the rack busbar 100.

[0038] In an embodiment of this utility model, each heat sink 51 extends along the height direction H. That is, the flow channel between two adjacent heat sinks 51 extends along the height direction H, so that air can carry away the heat generated by the first busbar 20 and the second busbar 30 through multiple flow channels via each of the second vents 121 on the base plate 12, thereby reducing the temperature of the first busbar 20 and the second busbar 30.

[0039] See Figure 2 In this embodiment of the invention, there are multiple heat dissipation fin groups 50. These multiple heat dissipation fin groups 50 are evenly distributed along the length direction L on the side surface of the first busbar 20 facing away from the second busbar 30. The remaining heat dissipation fin groups 50 are also evenly distributed along the length direction L on the side surface of the second busbar 30 facing away from the first busbar 20. The first busbar 20 is provided with multiple pairs of fixing elements 60 arranged vertically along its height. In this example, each heat dissipation fin group 50 is disposed on a rectangular surface between two pairs of fixing elements 60; that is, each heat dissipation fin group 50 is spaced apart from each other. Conversely, the rectangular surface between two fixing elements 60 of the same pair is not provided with heat dissipation fin groups 50, but they can be added if necessary.

[0040] In this embodiment, the heat dissipation fin assembly 50 is disposed on the surface of the thicker non-contact area at the bottom of the first busbar 20 or the second busbar 30. The length of the heat dissipation fin assembly 50 along the height direction H is substantially the same as the length of the top and bottom surfaces of the non-contact area of ​​the first busbar 20 or the second busbar 30 where it is located, and the upper and lower end surfaces of the heat dissipation fin assembly 50 are coplanar with the upper and lower end surfaces of the non-contact area of ​​the first busbar 20 or the second busbar 30. However, its length can be reduced as needed.

[0041] In a preferred embodiment, the number of heat dissipation fin groups 50 is even, and the number of heat dissipation fin groups 50 disposed on the first busbar 20 is the same as the number of heat dissipation fin groups 50 disposed on the second busbar 30.

[0042] In addition, in the second embodiment, as an alternative to the aforementioned other embodiment, only the differences are described below. In the second embodiment, each heat dissipation fin group 50 and the heat dissipation fins 51 therein are instead arranged to extend at intervals along the length direction L, and may be provided at... Figure 2 The transverse region Z1 of the fixed element 60 (corresponding to) Figure 2 Within each of the rectangular dashed boxes.

[0043] That is, the flow channel between two adjacent heat sinks 51 extends along the length direction L, so that air can carry away the heat generated by the first busbar 20 and the second busbar 30 through multiple flow channels, thereby reducing the temperature of the first busbar 20 and the second busbar 30.

[0044] More specifically, in this embodiment, some of the heat dissipation fin groups 50 are disposed along the length direction L on the side surface of the first busbar 20 facing away from the second busbar 30, and other portions of the heat dissipation fin groups 50 are disposed along the length direction L on the side surface of the first busbar 20 facing away from the second busbar 30, further improving the heat dissipation effect of the first busbar 20 and the second busbar 30, and ultimately improving the overall heat dissipation performance of the rack busbar 100. In this example, the heat dissipation fin groups 50 can be formed first and then fixed to the surfaces of the first busbar 20 and the second busbar 30 by means of welding, bonding, etc. Alternatively, a solid metal block can be formed on the surfaces of the first busbar 20 and the second busbar 30 by extrusion molding, and then the material can be removed by machining to form each heat dissipation fin 51.

[0045] That is, the heat dissipation fin assembly 50 and the first busbar 20 or the second busbar 30 are integrally formed. In this example, the cumulative length of each heat dissipation fin assembly 50 along the length direction L accounts for no less than 50%, 70%, or 90% of the length of the first busbar 20 or the second busbar 30 along the length direction L to ensure its heat dissipation effect. Alternatively, the first busbar 20 has at least one heat dissipation fin 51 along its length direction L for 50% to 100% of its length.

[0046] In the third embodiment, the heat dissipation fin assembly 50 is manufactured by an extrusion process. The first busbar 20 or the second busbar 30 each includes only one heat dissipation fin assembly 50, wherein at least one heat dissipation fin 51 extends continuously along the length direction L, and its continuous extension length is substantially the same as the length of the first busbar 20 or the second busbar 30 in the length direction L. That is, the continuous extension length of the heat dissipation fin 51 in the same heat dissipation fin assembly 50 along the length direction L accounts for 99% to 100% of the length of the first busbar 20 or the second busbar 30 in the length direction L. Figure 2 The horizontal region Z2 is marked by a long rectangular dashed frame.

[0047] In this design, the left and right end faces of the heat sink 51 of the heat sink assembly 50 and the left and right end faces of the first busbar 20 or the second busbar 30 are coplanar. Alternatively, if necessary, the length of the heat sink assembly 50 can be shortened so that the maximum length of any heat sink 51 along the length direction L is not less than 50%, 70%, and 90% of the length of the first busbar 20 or the second busbar 30 along the length direction L, and is less than 100%.

[0048] In the second and third embodiments, the heat dissipation fin assembly 50 is located in the area connecting multiple vertically arranged fixing elements 60, and is not located on the left or right sides of each fixing element 60. If necessary, another heat dissipation fin assembly 50 may be provided in the aforementioned area by means of bonding or welding.

[0049] In various embodiments, the area of ​​the heat dissipation fin assembly 50 on the first busbar 20 and the second busbar 30 is 50% to 100% of the total area of ​​the non-contact side surface of the side of the first busbar 20. Specifically, the aforementioned ratio can be 50%, 75%, 100%, or any value within the aforementioned range, to ensure that the first busbar 20 has sufficient heat dissipation effect, thereby enabling the rack busbar 100 to have sufficient heat dissipation performance.

[0050] In various embodiments of this utility model, the height of the heat dissipation fin assembly 50 is almost sufficient to allow the connection between the first busbar 20 and the side plate 11. In other words, the maximum height of any part of the heat dissipation fin assembly 50 along the width direction W is slightly less than the minimum distance between the side surface of the first busbar 20 and the second busbar 30 and the side plate 11. The minimum distance can be understood as the minimum straight-line distance along the width direction W between any point on the side surface of the first busbar 20 and the second busbar 30 and any point on the side plate 11. The maximum height of the heat dissipation fin assembly 50 can be understood as the distance between the top and bottom of any part of it along the width direction W, and the maximum height of the heat dissipation fin assembly 50 along the width direction W must be greater than or equal to 50% and less than or equal to 100% of the aforementioned minimum distance. Specifically, for example, 50%, 75%, 100%, or any value within the above range, so that the first busbar 20 has sufficient heat dissipation effect, thereby enabling the rack busbar 100 to have sufficient heat dissipation performance.

[0051] In an embodiment of this utility model, the side plate 11 is provided with a plurality of first vents 111, which are spaced apart along the length direction L and correspond to the heat dissipation fin group 50 so that the heat dissipation fin group 50 can communicate with the outside. Each first vent 111 extends along the extension direction of the heat dissipation fin 51.

[0052] In this embodiment, the side plate 11 is provided with a plurality of first vents 111 extending along the extension direction of the heat sink 51. The plurality of first vents 111 are evenly spaced along the length direction L, and the opening position of the first vents 111 corresponds to the position of the heat sink fin assembly 50, so that the heat sink fin assembly 50 can communicate with the outside air, and the airflow can carry away the heat of the heat sink fin assembly 50 through the plurality of first vents 111, thereby improving the heat dissipation performance of the rack busbar 100.

[0053] In an embodiment of this utility model, the distance between the two opposite sides of the first vent 111 that are parallel to the extending direction of the heat sink 51 is greater than twice the distance between two adjacent heat sinks 51.

[0054] In this embodiment, the distance between the two opposite sides of the first vent 111 that are parallel to the extension direction of the heat sink 51 is greater than twice the distance between two adjacent heat sinks 51, for example, two or three times, thereby improving the heat dissipation effect of the first vent 111 and ultimately improving the heat dissipation performance of the rack busbar 100.

[0055] In an embodiment of this utility model, the base plate 12 is provided with a plurality of second vents 121, which are spaced apart along the length direction L and extend along the width direction W.

[0056] In this embodiment, the base plate 12 is provided with a plurality of second vents 121 evenly spaced along the length direction L. The extension direction of the second vents 121 is the width direction W. Through the plurality of second vents 121 on the base plate 12, the receiving groove inside the outer shell 10 is connected to the outside, so that the airflow can carry away the heat of the first busbar 20 and the second busbar 30 through the second vents 121, thereby improving the heat dissipation performance of the rack busbar 100.

[0057] In an embodiment of this utility model, the distance between the two opposite sides of the second vent 121 along the length direction L is greater than twice the distance between two adjacent heat sinks 51.

[0058] In this embodiment, the distance between the two opposite sides of the second vent 121 along the length direction L is greater than twice, for example, twice or three times, the distance between two adjacent heat sinks 51, thereby improving the heat dissipation effect of the second vent 121 and ultimately improving the heat dissipation performance of the rack busbar 100.

[0059] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A rack bus, comprising: The rack bus includes: The housing has a length direction, a width direction and a height direction, and includes a bottom plate and two side plates. The two side plates are connected to the bottom plate on two opposite sides that extend along the length direction. The two side plates and the bottom plate enclose each other to form a mounting groove. A first busbar is disposed in the mounting groove and extends along the length direction; The second busbar is disposed in the mounting groove and extends along the length direction; An insulating strip, wherein the insulating strip is sandwiched between the first busbar and the second busbar and extends along the length direction; and At least two heat dissipation fin groups, at least one of the heat dissipation fin groups is disposed on the side surface of the first busbar away from the second busbar, and the remaining heat dissipation fin groups are disposed on the side surface of the second busbar away from the first busbar, and each heat dissipation fin group includes a plurality of heat dissipation fins arranged at intervals.

2. The rack bus of claim 1 wherein, Each of the heat sinks extends along the height direction.

3. The rack bus of claim 1 wherein, The heat sink in the heat sink fin group located on the first busbar extends along the length direction, and the heat sink in the heat sink fin group located on the second busbar extends along the length direction.

4. The rack bus of claim 3 wherein, The first busbar and the heat dissipation fin group located on its surface are integrally formed, and the second busbar and the heat dissipation fin group located on its surface are integrally formed.

5. The rack bus of claim 4 wherein, The first busbar has a plurality of heat dissipation fin groups that extend along the length direction and are spaced apart. The cumulative length of each heat dissipation fin group along the length direction is between 50% and 100% of the length of the first busbar along the length direction.

6. The rack bus of claim 4 wherein, The heat dissipation fin group on the first busbar includes a heat dissipation fin, the length of which along the length direction is between 99% and 100% of the length of the first busbar along the length direction.

7. The rack bus of any one of claims 1 to 6, wherein, The minimum distance between the first busbar and the side plate is between 75% and 100% of the maximum height of any heat dissipation fin group on the first busbar along the width direction, and the minimum distance between the second busbar and the corresponding side plate is between 75% and 100% of the maximum height of any heat dissipation fin group on the second busbar along the width direction.

8. The rack bus of any one of claims 1 to 6, wherein, The side plate has multiple first vents, which are spaced apart along the length direction and correspond to the heat dissipation fin group so that the heat dissipation fin group can communicate with the outside. Each first vent extends along the extension direction of the heat dissipation fin.

9. The rack bus of any one of claims 1 to 6, wherein, The base plate has multiple second vents, which are spaced apart along the length direction and extend along the width direction.

10. The rack bus of claim 9 wherein, The distance between the two opposite sides of the second vent along the length direction is greater than twice the distance between two adjacent heat sinks.

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