TWI748428B - Server and composite transmission line thereof - Google Patents

Abstract

A server and a composite transmission line thereof are provided. The composite transmission line includes a plurality of data transmission lines, a plurality of power transmission lines and a plurality of first fixed units. Each data transmission line includes at least one wire and an insulating surface covering the at least one wire, and the data transmission lines are stacked by face to face via their insulating surface. The power transmission lines are disposed between the two insulating surfaces of the two data transmission lines. The power transmission lines and the data transmission lines together form a plurality of bending portions of the composite transmission line and a plurality of connecting portions connecting the plurality of bending portions. A plurality of first fixing units are disposed at only one side of each bending part, and the first the fixing units bundle and surround the data transmission lines and the power transmission lines disposed at the connection part, so as to limit the data transmission lines and the power transmission lines when they are jointly expandor being folded in a moving direction.

Description

Server and its composite transmission line

This case is about a server and its composite transmission line, especially a composite transmission line that can be expanded and collapsed.

A common large server cabinet contains multiple server hosts and multiple hard disk storage devices. Various wires are usually connected between the hard disk storage device and each server host, and the cabinet manager can drag the storage device back and forth in the cabinet to facilitate the uninterrupted power maintenance or replacement of the hard disk storage device. However, in the process of reciprocating towing, the wires are easily scattered, entangled, or touched and interfered with other hardware components in the cabinet, making the hard disk storage device difficult to repair. Existing cabinets will be installed with movable cable management brackets for storing and managing the above-mentioned cables.

However, the traditional cable management bracket requires considerable cabinet space. In the limited cabinet space, the cable management bracket with pivots or chains cannot be accommodated, and the installation of the cable management bracket will greatly increase the cost and weight of the server cabinet. Increase. In addition, when the wire is towed back and forth in the server cabinet, the wire is easily in contact with the cabinet or the cable management support. After a long reciprocating drag, the wire is easily scratched, causing the wires in the wire to be exposed and short-circuited, causing the wire to fail to transmit Signal.

In one embodiment, a composite transmission line includes a plurality of data transmission lines, a plurality of power transmission lines, and a plurality of first fixed units. Each data transmission line includes at least one conductive wire and an insulating surface covering the at least one conductive wire, and the data transmission lines are arranged to overlap each other through the insulating surface. The plurality of power transmission lines are arranged between the insulating surfaces of the two data transmission lines in the plurality of data transmission lines, and the power transmission line and the data transmission line jointly form the plural bending parts of the composite transmission line and the plural connecting parts connecting the plural bending parts. A plurality of first fixing units are arranged on one side of each bending part, and are bundled around the data transmission line and power transmission line at the connection part to limit the data transmission line and the power supply when the data transmission line and the power transmission line are expanded or folded in a moving direction. Transmission line.

In one embodiment, a server includes a chassis, a motherboard component, a tray, a storage device, and a composite transmission line. The case body includes a first slide rail, which is located on both sides of the case body. The main board component is arranged on the chassis body. The tray includes a second slide rail, the second slide rail is located on both sides of the tray and is movably combined with the first slide rail, so that the tray moves along the length direction of the first slide rail and the second slide rail relative to the chassis . The plural storage devices are arranged on the tray. One end of the composite transmission line is connected to the chassis body, and the other end of the composite transmission line is connected to the tray to expand or collapse between the tray and the chassis body when the tray moves.

FIG. 1 is a schematic diagram of the appearance of an embodiment of the composite transmission line 1 according to the present application. Referring to FIG. 1, the composite transmission line 1 includes a plurality of data transmission lines 111-114, a plurality of power transmission lines 121-124, and a plurality of fixing units 131-134 (hereinafter referred to as first fixing units 131-134). Among them, Figure 1 shows four data transmission lines 111-114, four power transmission lines 121-124, and four first fixed units 131-134 as examples. However, this case is not limited to this. The composite transmission line 1 can include other numbers of data transmission lines. 111-114, power transmission lines 121-124, and first fixing units 131-134.

Each data transmission line 111-114 includes a wire and an insulating surface S1, and the insulating surface S1 is completely covered outside the wire. The wires of the data transmission lines 111-114 can transmit data signals, such as data stored in hard disks; the insulating surface S1 of the data transmission lines 111-114 can avoid short circuits between the wires of the data transmission lines 111-114, and can reduce the noise of the data signals News interference. As shown in FIG. 1, the data transmission lines 111-114 are arranged to overlap each other through respective insulating surfaces S1. For example, the insulating surface S1 of the data transmission line 111 faces the insulating surface S1 of the data transmission line 112, so that the data transmission line 111 is overlapped. For the data transmission line 112, the rest will be deduced by analogy, and will not be repeated here. In one embodiment, the data transmission lines 111-114 may have a flat shape, each data transmission line 111-114 includes a plurality of wires, and the plurality of wires of each data transmission line 111-114 are arranged side by side in the width direction of the data transmission line 111-114 The insulating surface S1 of each data transmission line 111-114 is then covered with a plurality of wires to form each data transmission line 111-114 with a flat shape.

Each power transmission line 121-124 includes a wire and an insulated surface S2. The wires of each power transmission line 121-124 can transmit power signals, such as power signals required for hard disk operation; the insulated surface S2 of the power transmission lines 121-124 can avoid various power sources. The wires of the transmission lines 121-124 are short-circuited, and can reduce the interference of the power signal by noise. The power transmission lines 121-124 are arranged along the width direction of the data transmission lines 111-114, and the power transmission lines 121-124 are arranged between the insulating surfaces S1 of the two data transmission lines of the data transmission lines 111-114. For example, in FIG. 1, the power transmission lines 121-124 are arranged between the insulating surfaces S1 of the two data transmission lines 112, 113, but the present case is not limited to this. The power transmission lines 121-124 can also be arranged on the two data transmission lines 111, Between the insulating surfaces S1 of 112, or the power transmission lines 121-124 can be arranged between the insulating surfaces S1 of the two data transmission lines 113, 114. Therefore, the data transmission lines 111-114 can protect the power transmission lines 121-124, so that the insulating surface S2 of the power transmission lines 121-124 is not easily scratched, and avoids causing the wires of the power transmission lines 121-124 to be exposed and short-circuited.

The power transmission line 121-124 and the data transmission line 111-114 are flexible. The power transmission line 121-124 and the data transmission line 111-114 together form the plural bending parts 10A-10E and the plural connecting bending parts 10A-10E of the composite transmission line 1 The connecting parts 14A-14E, the power transmission lines 121-124 and the data transmission lines 111-114 can be folded and unfolded. The first fixing units 131-134 are arranged on the non-adjacent connecting portions 14B, 14D of the connecting portions 14A-14E. In other words, the first fixing units 131-134 are arranged on one side of each bending portion 10A-10E. That is, on both sides of each bending portion 10A-10E (the two sides are parallel to the folding direction and the unfolding direction of the composite transmission line 1), each bending portion 10A-10E has only one side provided with a first fixing Units 131-134.

For example, the bending portion 10A has a first side adjacent to the bending portions 10B and 10C and a second side away from the bending portions 10B and 10C, and the first fixing units 131 and 132 are located on the first side of the bending portion 10A. The second side of the bending portion 10A is not provided with any fixing unit; the bending portion 10B has a first side adjacent to the bending portion 10A and a second side away from the bending portion 10A and adjacent to the bending portion 10D, the first fixing unit 131 , 132 is located on the first side of the bending portion 10B, and the second side of the bending portion 10B is not provided with any fixing unit. The bending portion 10C has a first side adjacent to the bending portions 10A, 10B and a second side away from the bending portions 10A, 10B and adjacent to the bending portion 10D. The first fixing units 133, 134 are disposed on the bending portion 10C. On the second side, the first side of the bent portion 10C is not provided with any fixing unit. The bending portion 10D has a first side adjacent to the bending portions 10B and 10C and a second side away from the bending portions 10B and 10C and adjacent to the bending portion 10E. The first fixing units 133 and 134 are located on the first side of the bending portion 10D. On one side, the second side of the bent portion 10D is not provided with any fixing unit. In other words, the connecting portion 14B that connects the bent portion 10A and the adjacent bent portion 10B is located on the first side common to the two and has the first fixing unit. Unit 131, 132, and the bending part 10A is different from the two common first side of the second side without any fixed unit, the same, the bending part 10B is different from the two common first The second side of the side is not provided with any fixing unit, and the bending portion 10C and the adjacent bending portion 10B are connected through the connecting portion 14C so that the two have a common second side. The second side of the bending portion 10C is also the bending portion. The second side of the bending portion 10B is not provided with any fixing unit, so the second side of the bending portion 10C is also not provided with any fixing unit, and the bending portion 10C also has a first side that is different from the second side of the bending portion 10C. On the same side, the bent portion 10C and the adjacent bent portion 10D are connected through the connecting portion 14D to have a common first side, and the first side shared by the bent portion 10C and the bent portion 10D is provided with a first fixing unit 133, 134.

Therefore, the first fixing units 131-134 are not continuously arranged on the connecting portions 14A-14E but not on each connecting portion 14A-14E, that is, the first fixing units 131-134 are not arranged on two adjacent connections at the same time. The parts 14A, 14B are not simultaneously provided on the two adjacent connecting parts 14B, 14C, and are not simultaneously provided on the adjacent two connecting parts 14C, 14D, and are not simultaneously provided on the adjacent two connecting parts 14D, 14E.

Based on this, the first fixing units 131-134 bundle the data transmission lines 111-114 and the power transmission lines 121-124 located at the connection portions 14B and 14D, respectively, to provide friction to connect the data transmission lines 111-114 and the power transmission lines 121-124 The straps are tied together. When the composite transmission line 1 is under force, the data transmission lines 111-114 and the power transmission lines 121-124 can move together in a moving direction D1 to unfold. The composite transmission line 1 is in the unfolded state. The included angle between the composite transmission lines 1 is larger than that when the composite transmission line 1 is in the folded state, that is, the distance between the composite transmission lines 1 on both sides of the bending part 10A-10E is larger; 1 When a force is applied, in the aforementioned moving direction D1, the composite transmission line 1 can move along the moving direction D1 to be folded, and the composite transmission line 1 is in the folded state. At this time, the composite transmission line 1 located on both sides of the bending part 10A-10E The included angle therebetween is smaller than the included angle when the composite transmission line 1 is in the unfolded state, that is, the distance between the composite transmission lines 1 on both sides of the bent portions 10A-10E is smaller.

Therefore, the first fixing units 131-134 can limit the data transmission lines 111-114 and the power transmission lines 121-124 when the data transmission lines 111-114 and the power transmission lines 121-124 are unfolded or collapsed along the moving direction D1, so as to avoid the data transmission lines 111 -114 and power transmission lines 121-124 move in different directions and shift. In addition, the first fixing units 131-134 are only arranged on one side of the bending portion 10A-10E, compared to the first fixing units 131-134 are arranged on both sides of the bending portion 10A-10E, and the data transmission line is bundled The 111-114 and the power transmission lines 121-124 are not too tight, and the composite transmission line 1 can provide a better expansion and folding effect when it is unfolded or folded.

In one embodiment, taking the aforementioned power transmission lines 121-124 disposed between the data transmission lines 112 and 113 as an example, the insulating surface S1 of the power transmission line 121-124 is not completely attached to the insulating surfaces of the two data transmission lines 112, 113 S2: At least a part of the power transmission lines 121-124 is in contact with the insulating surface S1 of the data transmission lines 112, 113. Especially when the power transmission lines 121-124 and the data transmission lines 111-114 are in the unfolded state, the power transmission lines 121-124 and the data transmission lines 112, 113 at the bending parts 10A-10E, the insulating surface S2 of the power transmission lines 121-124 are not completely The ground is attached to the insulating surface S1 of the two data transmission lines 112 and 113.

In one embodiment, the first fixing units 131-134 may be heat shrinkable sleeves, heat-resistant tapes, straps or hook and loop tapes.

In one embodiment, in order to match the size of the case body 21 or the arrangement position of the hardware components in the server, when the length of the connecting portion 14B of the composite transmission line 1 is long, the first fixing units 131-134 are arranged in the connecting The number of the parts 14B and 14D is at least two to strengthen the binding force of the first fixing unit 131-134 to the composite transmission line 1. For example, two first fixing units 131 and 132 are arranged at intervals in the connecting portion 14B, and two first fixing units 133 and 134 are arranged at intervals in the connecting portion 14D. Therefore, compared to arranging a plurality of first fixing units on both sides of the bending portion 10A-10E, a plurality of first fixing units 131-134 can be used on a single side of the bending portion 10A-10E. The fixing unit can reduce the production cost of the composite transmission line 1 and provide the same binding effect.

In one embodiment, the lengths between the connecting portions 14A-14E are not all equal, that is, the connecting portions 14A-14E may have connecting portions 14B, 14C with different lengths and connecting portions 14D, 14E with different lengths. Fig. 2 is a schematic diagram of an embodiment of the case 21 of a server with a composite transmission line 1 according to the present case. As shown in Figs. 1 and 2, if the composite transmission line 1 is placed in the case 21, the connection part 14A- The different lengths of 14E can more flexibly configure the positions of the hardware components in the chassis body 21 to avoid the hardware components in the chassis body 21 being unable to evade the composite transmission line 1 due to the same length of the connecting parts 14A-14E, resulting in a composite transmission line 1 The connecting parts 14A-14E with different lengths are constantly in contact with the hardware components and scratched during unfolding and folding, and the friction between the connecting parts 14A-14E can be reduced, so that the composite transmission line 1 is directly or Compared with the composite transmission line 1 that uses the connecting parts 14A-14E of the same length, the process of expanding or folding by receiving external force can apply less external force to achieve the effect of saving effort.

3 is a schematic diagram of an embodiment of the tray 23 of the aforementioned server, and FIGS. 4 and 5 are schematic diagrams of an embodiment of the tray 23 combined with the chassis 21. Please refer to FIGS. 1 to 5 together. The server includes a chassis 21, a motherboard component 22, a tray 23, a storage device 24, and a composite transmission line 1. As shown in FIGS. 4-5, the main board component 22 is arranged in the chassis body 21, and the storage device 24 is arranged in the tray 23. As shown in FIG. 2, the case body 21 includes a first slide rail 21A, the first slide rails 21A are located on both sides of the case body 21, and the length direction of the first slide rail 21A defines the moving direction D1. As shown in FIG. 3, the tray 23 includes a second slide rail 23B, the second slide rails 23B are located on both sides of the tray 23, the second slide rail 23B can be combined with the first slide rail 21A, and the second slide rail 23B can be opposite to the first slide rail 23B. A slide rail 21A slides in the moving direction D1, so that the tray 23 moves relative to the chassis 21 along the length direction of the first slide rail 21A and the second slide rail 23B. The two ends of the composite transmission line 1 are respectively connected to the chassis body 21 and the tray 23. When the tray 23 moves relative to the chassis body 21, the tray 23 drives the composite transmission line 1 to expand or collapse, so that the composite transmission line 1 is between the tray 23 and the chassis body 21 When expanded or collapsed, the storage device 24 moves in a direction away from the motherboard component 22 or moves in a direction adjacent to the motherboard component 22. For example, when the tray 23 moves away from the chassis body 21, the composite transmission line 1 changes from the folded state to the expanded state, the distance between the tray 23 and the chassis body 21 gradually increases, and the storage device 24 moves away from the motherboard components The distance between the tray 23 and the main board component 22 gradually increases; when the tray 23 moves in the direction adjacent to the chassis body 21, the composite transmission line 1 changes from the unfolded state to the collapsed state, and the distance between the tray 23 and the chassis body 21 The distance between the storage device 24 and the motherboard component 22 gradually decreases, and the storage device 24 moves in the direction adjacent to the motherboard component 22 and the distance between the storage device 24 and the motherboard component 22 gradually decreases.

As shown in FIG. 4, when the composite transmission line 1 is in the folded state, the angle between the composite transmission lines 1 on both sides of the bent portions 10A-10E is relatively small. As shown in FIG. 5, when the tray 23 moves away from the chassis body 21 by sliding the second slide rail 23B relative to the first slide rail 21A, the composite transmission line 1 is in the unfolded state, and the two sides of the bending parts 10A-10E The included angle between the composite transmission lines 1 is relatively large, and there is a positive correlation between the aforementioned included angle and the moving distance of the tray 23, that is, when the distance between the tray 23 and the chassis 21 is relatively large, the aforementioned included angle is relatively large. When the distance to the case body 21 is relatively short, the aforementioned included angle is relatively small. Based on this, the user of the server can apply force to the tray 23 to move the tray 23 away from the chassis body 21, and the storage device 24 to move away from the motherboard component 22. The user can move the motherboard component without moving the tray 23. In the case of 22, the storage device 24 is inspected, repaired, or replaced. After completing the aforementioned inspection, maintenance, or replacement operations, the user can apply force to move the tray 23 in the direction adjacent to the chassis body 21, and the storage device 24 to move in the direction adjacent to the motherboard component 22, so that the tray 23 and the storage device 24 is housed in the case body 21.

In one embodiment, the storage device 24 may be a traditional hard disk (HDD) or a solid state disk (SDD).

In one embodiment, the composite transmission line 1 further includes a plurality of adhesive labels, and each adhesive label is attached to the surface of each of the first fixing units 131-134, that is, the adhesive label is attached to one of the first fixing units 131 -134 and surround the data transmission line 111-114 and the power transmission line 121-124 together with the first fixing units 131-134 on the same connecting portion 14B, 14D, wherein the adhesive label is attached to one of the first fixing units 131 -134 overlaps at least partially, and the adhesive label can strengthen the strength of the first fixing unit 131-134 tied to the data transmission line 111-114 and the power transmission line 121-124; and the adhesive label can record product information to increase its application The convenience.

In one embodiment, as shown in FIG. 1, the composite transmission line 1 further includes a data port 115. The data port 115 is located at the end of each of the data transmission lines 111-114. The data transmission lines 111-114 can be electrically connected through the data port 115, respectively性Connect motherboard component 22. The composite transmission line 1 further includes a power connection port 125 located at the end of the power transmission line 121-124, and the power transmission line 121-124 can be electrically connected to the motherboard component 22 through the power connection port 125.

In one embodiment, as shown in FIG. 5, the server further includes a sliding rail groove 25 and a plurality of second fixing units 26A, 26B matched with the sliding rail groove 25. The second fixing units 26A, 26B may be buckles. The sliding rail groove 25 is located at the bottom of the chassis body 21, and the length direction of the sliding rail groove 25 is parallel to the length direction of the first sliding rail 21A and the length direction of the second sliding rail 23B. The second fixing units 26A, 26B are also arranged on one side of the bending portion 10A-10E, and the second fixing units 26A, 26B and the first fixing unit 131-134 are arranged on the same side of the bending portion 10A-10E, and That is, the second fixing units 26A, 26B and the first fixing units 131-134 are arranged at the same connecting portions 14B, 14D. For example, the second fixing unit 26A and the first fixing units 131 and 132 are jointly disposed on the connecting portion 14B, and the second fixing unit 26B and the first fixing units 133 and 134 are jointly disposed on the connecting portion 14D; , 14E is not provided with the first fixing unit 133, 134, so the connecting portion 14A, 14C, 14E is also not provided with the second fixing unit 26A, 26B.

The second fixing units 26A and 26B are combined with the sliding rail groove 25 and the composite transmission line 1. One end of the second fixing unit 26A, 26B (hereinafter referred to as the first end) is movably arranged in the slide rail groove 25, and the other end of the second fixing unit 26A, 26B (hereinafter referred to as the second end) surrounds the composite transmission line 1 data transmission line 111-114 and power transmission line 121-124. Therefore, when the tray 23 moves, by the cooperation of the second fixing units 26A, 26B and the sliding rail groove 25, the second fixing units 26A, 26B can move along the sliding rail groove 25 in the moving direction D1 as the tray 23 moves. Move, the second fixing unit 26A, 26B can provide friction to further limit the data transmission line 111-114 and the power transmission line 121-124, avoiding the data transmission line 111-114 and the power transmission line 121-124 moving in different directions and offset, resulting in The data transmission lines 111-114 and the power transmission lines 121-124 are scattered. Moreover, when the tray 23 drives the composite transmission line 1 to expand or fold, since the first ends of the second fixing units 26A, 26B are movably arranged in the slide rail groove 25, the first ends of the second fixing units 26A, 26B are Only move along the length direction of the slide rail groove 25, and the second ends of the second fixing units 26A, 26B are fixed to the data transmission line 111-114 and the power transmission line 121-124 of the composite transmission line 1, and can apply force to the data transmission line 111-114 and the power transmission lines 121-124 to force the data transmission lines 111-114 and the power transmission lines 121-124 to expand or collapse along the length direction parallel to the slide rail groove 25, thereby guiding the data transmission lines 111-114 and The function of the moving direction of the power transmission lines 121-124 is to prevent the composite transmission line 1 from moving in different directions and deviating during the unfolding or folding process. The user of the server can more smoothly pull the tray 23 out of the chassis 21 or Push the tray 23 into the chassis body 21.

In one embodiment, as shown in FIG. 5, the slide rail groove 25 has a slot 25A, the slot 25A has a slot width, and the outer diameter width of the first end of the second fixing unit 26A, 26B is greater than the slot width, The slot 25A of the slide rail groove 25 can position the second fixing units 26A, 26B in the slide rail groove 25. When the tray 23 moves relative to the chassis body 21, the second fixing units 26A, 26B can stably move in the slide rail groove 25. In one embodiment, the second ends of the second fixing units 26A, 26B may partially surround the data transmission lines 111-114 and the power transmission lines 121-124. For example, the second end of the second fixing unit 26A, 26B can have a C-shaped structure or a U-shaped structure, and the second end of the second fixing unit 26A, 26B can be connected to the data transmission line 111-114 and the power transmission line 121- 124 to force the data transmission lines 111-114 and the power transmission lines 121-124 to be restricted, or, for example, the second ends of the second fixing units 26A, 26B may have a clamping member to clamp the data transmission lines 111-114 and the power transmission lines 121-124 and force the data transmission line 111-114 and the power transmission line 121-124 to be restricted.

To sum up, according to one embodiment of the server and its composite transmission line in this case, the cable management bracket is not required, which can save the cost of the server cabinet; the insulating surface of the power transmission line is protected by the data transmission line and is not easily scratched. The wires of the power transmission line are exposed and short-circuited; and the first fixing unit is only arranged on one side of the bending part, so that the bundled data transmission line and power transmission line will not be too tight. The composite transmission line can be provided when unfolding or folding Better expansion and folding effect, and when the length of the connecting part of the composite transmission line is longer, the production cost of the composite transmission line can be reduced and the same binding effect can be provided. Furthermore, the adhesive label and the first fixing unit are used to bundle the data transmission line and the power transmission line together at the same connection part, which can strengthen the binding force on the data transmission line and the power transmission line, and the adhesive label can increase the convenience of application.

Although this case has been disclosed in the above examples, it is not intended to limit the case. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the case. Therefore, the scope of protection of this case The scope of the patent application attached hereafter shall prevail.

1: Composite transmission line 10A: Bending part 10B: Bending part 10C: Bending part 10D: Bending part 10E: Bending part 111: data transmission line 112: data transmission line 113: data transmission line 114: data transmission line 115: data port 121: power transmission line 122: power transmission line 123: Power transmission line 124: Power transmission line 125: power port 131: The first fixed unit 132: The first fixed unit 133: The first fixed unit 134: The first fixed unit 14A: Connection part 14B: Connection part 14C: Connection part 14D: Connection part 14E: Connection part 21: Chassis 21A: The first slide 22: Motherboard components 23: Pallet 23B: second slide 24: storage device 25: Slide rail groove 25A: Slot 26A: Second fixed unit 26B: Second fixed unit D1: Moving direction S1, S2: insulating surface

[Figure 1] is a schematic diagram of the appearance of an embodiment of the composite transmission line according to the present application. [Figure 2] is a schematic diagram of an embodiment of the case of a server with a composite transmission line according to the present case. [Figure 3] is a schematic diagram of an embodiment of the tray of the aforementioned server. [Figure 4] is a schematic diagram of an embodiment of the tray combined with the chassis. [Figure 5] is a schematic diagram of another embodiment of the tray combined with the chassis body.

1: Composite transmission line 10A: Bending part 10B: Bending part 10C: Bending part 10D: Bending part 10E: Bending part 111: data transmission line 112: data transmission line 113: data transmission line 114: data transmission line 115: data port 121: power transmission line 122: power transmission line 123: Power transmission line 124: Power transmission line 125: power port 131: The first fixed unit 132: The first fixed unit 133: The first fixed unit 134: The first fixed unit 14A: Connection part 14B: Connection part 14C: Connection part 14D: Connection part 14E: Connection part D1: Moving direction S1, S2: insulating surface

Claims (6)

A server includes: a case body, including a first slide rail, located on both sides of the case body; a main board element, arranged in the case body; a tray, including a second slide rail, the second slide Rails are located on both sides of the tray and are movably combined with the first slide rail, so that the tray moves along the length direction of the first slide rail and the second slide rail relative to the chassis body; a plurality of storage devices are provided On the tray; and a composite transmission line including a plurality of data transmission lines, a plurality of power transmission lines and a plurality of first fixing units, wherein each of the data transmission lines includes at least one wire and an insulating surface covering the at least one wire, the data transmission lines The power transmission lines are arranged between the insulating surfaces of the two data transmission lines of the data transmission lines, and the power transmission lines and the data transmission lines jointly form the composite transmission line. The plurality of bending portions and the plurality of connecting portions connecting the bending portions, the first fixing units are arranged on one side of each bending portion, and the data transmission lines and the connecting portions are bundled around the connecting portions. The power transmission lines are used to limit the data transmission lines and the power transmission lines when the data transmission lines and the power transmission lines are expanded or collapsed in a moving direction, one end of the composite transmission line is connected to the chassis body, and the other of the composite transmission line One end is connected with the tray to expand or collapse between the tray and the chassis body when the tray moves. The server according to claim 1, wherein the lengths of at least two of the connecting parts are different. The server according to claim 1, wherein the number of the first fixing unit located on one side of one of the bending parts is greater than one. The server according to claim 1, wherein the composite transmission line further includes a plurality of adhesive labels, and each of the adhesive labels is pasted on each of the first fixing units. The server according to claim 1, wherein the server further comprises: a slide rail groove located at the bottom of the chassis body, the length of the slide rail groove is parallel to the first slide rail and the second slide rail The length direction; and a plurality of second fixing units, each of the second fixing units and the first fixing units are arranged on the same side of each of the bending portions, and one end of each of the second fixing units is movably arranged on the sliding In the rail groove, the other end of each second fixing unit surrounds the data transmission lines and the power transmission lines located at the connection parts; wherein, when the tray moves, the tray drives the composite transmission line to expand or collapse, and The second fixing units are driven to move in the sliding rail groove along the length direction of the sliding rail groove, and the second fixing units and the first fixing units jointly limit the data transmission lines and the power transmission lines. The server according to claim 5, wherein the slot of the sliding rail groove has a slot width, and an outer diameter width of the one end of the second fixing unit disposed in the sliding rail groove is greater than the slot width.

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