Integrated data center micro-module closed hot and cold aisles

Abstract

The utility model discloses an integrated data center micro module closed cold and hot channel, including base, main frame, a plurality of machine cabinet and cable restraint frame, main frame sets up on the base, a plurality of machine cabinet adopts face to face and places mode and is established on the main frame, and cable restraint frame can detachable setting is at the air outlet side of machine cabinet, and cable restraint frame includes wire arrangement board and wire clamp, and wire arrangement board horizontal setting is at the air outlet of machine cabinet, and a plurality of installation slot for installing wire clamp is seted up on wire arrangement board upper end surface, and the clamping piece for fastening both is seted up between wire clamp and installation slot. Through set up with micro module same plane and install to the wire arrangement board on the machine cabinet, wire arrangement board continues to restrain cable, avoids the blocking of the key ventilation path of machine cabinet under the gravity of cable binding.

Description

Technical Field

[0001] This utility model specifically relates to the field of data center micro-module technology, and more specifically to an integrated data center micro-module enclosed hot and cold aisle. Background Technology

[0002] Existing integrated data center micro-module closed hot and cold aisle systems typically consist of several server racks arranged face-to-face to form an aisle. The top and ends of the aisle are sealed off with partitions or doors, creating a "cold air plenum." Cold air is completely confined within the aisle and can only enter through the front door of the server rack. The top and ends of the hot aisle are sealed off, forming a "hot air collection zone." Sealing components (such as transparent glass or steel plates) are installed at the top and ends of the cold (or hot) aisle, making it an independent enclosed space. Air conditioning returns air directly from the enclosed hot aisle, cools it, and then sends it directly into the enclosed cold aisle. Because the aisle is sealed, cold air is forced in through the server front door, carries away heat, and is then exhausted through the rear door into the hot aisle, where it is directly and efficiently recovered by row-level air conditioning. This greatly reduces hot and cold air mixing and eliminates hot spots.

[0003] However, during the implementation of closed hot aisle systems, each server rack contains several micro-modules, and each micro-module contains a large number of power cables, fiber optic cables, network cables, etc., connecting servers and network devices. When storing these cables, the common practice is to bundle all the cables on a module together with cable ties and then fix them to the side wall of the rack. This leads to the following serious drawbacks: 1) The cables will be stacked haphazardly, forming a bloated, irregular three-dimensional tangled ball that blocks the heat dissipation channels of the cabinet under its own weight.

[0004] 2) When a device experiences a network failure or needs to be taken offline for replacement, engineers cannot accurately and quickly locate all relevant cables and perform the necessary operations.

[0005] 3) After all cables are bundled with cable ties, the bundled cables, under their own weight, increase the mechanical stress on the cable joints and equipment ports, reducing the service life of the cables. Utility Model Content

[0006] The technical problem to be solved by this utility model is how to neatly organize the cables at the rear of the micro-module.

[0007] To address the aforementioned technical issues, an integrated data center micro-module enclosed hot and cold aisle is proposed, comprising a base, a main frame, several cabinets, and a cable constraint frame. The main frame is mounted on the base, and the cabinets are arranged face-to-face on the main frame. The cable constraint frame is detachably mounted on the air outlet side of the cabinets. The cable tray is on the same plane as the micro-module of the cabinet. The cable constraint frame includes a cable tray and cable clamps. The cable tray is horizontally mounted at the air outlet of the cabinet. Several mounting slots for mounting cable clamps are provided on the upper surface of the cable tray, and a locking component is provided between the cable clamps and the mounting slots for fastening the two.

[0008] By mounting the ribbon cable board and the micro-module on the same plane onto the rack, the cable clamps on the ribbon cable board constrain the cables, preventing them from obstructing the rack's critical ventilation paths under their own weight after being bundled together.

[0009] In a preferred embodiment of the present invention, the engaging component includes a limiting plate and a first spring. Two limiting plates are provided and are supported on the two side walls of the wire clamp. The limiting plates are rotatably connected to the wire clamp. Each limiting plate has a protrusion on the side away from the wire clamp. Two first springs are provided and are respectively located between the limiting plate and the wire clamp. The groove wall of the mounting groove has a first limiting groove corresponding to the protrusion.

[0010] By setting a locking component, the protrusion on the limiting plate of the locking component cooperates with the first limiting groove, and the limiting plate, under the action of the first spring force, makes the protrusion...

[0011] In a preferred embodiment of the present invention, the protrusion is provided with anti-slip dot-shaped protrusions, and the groove wall of the first limiting groove is provided on a frosted surface corresponding to the anti-slip dot-shaped protrusions.

[0012] The anti-slip dot-shaped protrusions on the limiting plate of the locking component cooperate with the first limiting groove on the frosted surface of the cable board mounting groove. Under the action of the first spring force, the dot-shaped protrusions and the frosted surface bite together, generating huge static friction force, which effectively prevents loosening caused by vibration and other reasons.

[0013] In a preferred embodiment of the present invention, the cable tray is provided with locking components on both sides that connect to the side walls of the cabinet air outlet.

[0014] By installing locking components on both sides of the ribbon cable board, it is connected to the cabinet, thus achieving overall fixation of the ribbon cable board. In a preferred embodiment of the present invention, two locking components are provided and respectively located at both ends of the cable tray. Each locking component includes a snap-fit ​​plate and a rack. The rack is located on the inner wall of the air outlet of the cabinet. The snap-fit ​​plate is slidably mounted on the cable tray. The end face of the snap-fit ​​plate is provided with a plurality of anti-slip protrusions corresponding to the rack. The cable tray is provided with a driving component for driving the snap-fit ​​plate to move synchronously in opposite directions or in opposite directions, so that the anti-slip protrusions are locked or separated from the rack.

[0015] The locking assembly locks at any position in the vertical direction by engaging the anti-slip ridge with the rack, achieving stepless height adjustment.

[0016] In a preferred embodiment of the present invention, both sides of the cable tray are provided with limiting components that connect to the side wall of the cabinet air outlet. The limiting components include a limiting rod group, a roller, and a second spring. The limiting rod group is slidably disposed on the cable tray and has two limiting rods symmetrically arranged around the snap-fit ​​plate. The roller is rotatably disposed on the limiting rod. The second spring is disposed between the cable tray and the limiting rod and has elastic potential energy to drive the limiting rod closer to the cable tray. Both sides of the cabinet air outlet are provided with second limiting grooves for the limiting rod group to be inserted.

[0017] By adding a limiting component, the limiting component can bear the weight of the ribbon cable board and temporarily fix it to the rack before the locking component is finally locked, which facilitates single-person installation and improves the overall rigidity and stability of the ribbon cable board in the vertical direction.

[0018] In a preferred embodiment of the present invention, the inner wall of the second limiting groove has a positioning groove corresponding to the roller.

[0019] By adding a positioning groove corresponding to the roller in the second limiting groove, the positioning groove forms an axial constraint on the roller, which can effectively prevent the cable board from being misaligned due to accidental external force before locking.

[0020] In a preferred embodiment of the present invention, the wire clamp includes a clamp body and an elastic clip. The elastic clip has a C-shaped structure, with its bottom fixedly disposed at the end of the clamp body, and a cable clamping space formed in the middle of the elastic clip.

[0021] The cable clamp consists of a clamp body and C-shaped elastic clips. The C-shaped elastic clips facilitate cable insertion and allow for adaptive deformation, making it compatible with single, multiple, and different cable thicknesses.

[0022] In a preferred embodiment of the present invention, both ends of the elastic clip are provided with arc-shaped guide surfaces, which are inclined inward along the direction close to the cable clamping space.

[0023] By adding inwardly inclined arc-shaped guide surfaces at both ends of the elastic clip, the arc-shaped guide surfaces can naturally guide the cable into the clamping space, achieving a quick insertion effect.

[0024] The advantages of this utility model compared with the prior art are: 1) The cable tray and micro-module are installed on the same plane on the rack to avoid obstructing the critical ventilation path of the rack due to their own weight after the cables are bundled.

[0025] 2) By setting a limiting component on the cable tray, the limiting rod and roller of the limiting component are fully inserted into the second limiting groove under the action of the second spring. The roller and the positioning groove cooperate to enable the cable tray to be steplessly adjusted in the vertical direction of the cabinet, adapting to micro-module configurations of different heights, and realizing high versatility and installation flexibility.

[0026] 3) By setting up a locking component, the drive sleeve of the locking component, when rotated, pushes the snap plate closer to or away from the rack through the threaded rod, thereby achieving horizontal locking or disassembly of the cable tray. With the design and the "press-type" snap-fit ​​structure of the cable clamp, maintenance personnel can easily and quickly complete the installation, height adjustment, and disassembly of the entire cable constraint frame.

[0027] 4) By setting up a cable clamp with a C-shaped elastic clip and arc-shaped guide surfaces at both ends, it facilitates cable insertion. This allows for adaptive deformation, making it compatible with single, multiple, and different thicknesses of cables.

[0028] 5) By setting a locking component on the online clamp, the anti-slip dot-shaped protrusions on the limiting plate of the locking component cooperate with the first limiting groove of the frosted surface in the mounting groove of the ribbon cable board. Under the action of the first spring force, the dot-shaped protrusions and the frosted surface are engaged, generating huge static friction force, which effectively prevents loosening caused by vibration and other reasons. Attached Figure Description

[0029] Figure 1 A schematic diagram of a closed hot and cold aisle structure for an integrated data center micro-module; Figure 2 This is a structural schematic diagram of the cabinet and cable tray of this utility model; Figure 3 This is a partial cross-sectional view of the connection between the locking component on the cable tray and the cabinet of this utility model; Figure 4 for Figure 3 A magnified view of part A; Figure 5 This is an exploded view of the ribbon cable board, cable clamp, locking component, driving component and locking assembly of this utility model; Figure 6 This is a structural schematic diagram of the cable board, cable clamp, engaging component, driving component, locking assembly, and limiting assembly of this utility model; Figure 7 This is a partial cross-sectional view of the ribbon cable board of this utility model; Figure 8 This is a partial cross-sectional view of the cable tray of this utility model after it has been installed in the cabinet; Explanation of reference numerals in the attached drawings: a, base; d, main frame; 1, cabinet; 11, second limiting groove; 12, positioning groove; 13, air outlet; 2, cable tray; 21, mounting groove; 22, first limiting groove; 23, mounting sleeve; 24, guide hole; 3, cable clamp; 31, clamp body; 32, elastic clamping piece; 33, arc-shaped guide surface; 34, groove; 4, snap-fit ​​component; 41, limiting plate; 42, first spring; 43, protrusion; 44, protrusion; 45, pressing block; 5, locking assembly; 51, snap-fit ​​plate; 52, rack; 53, anti-slip protrusion; 6, driving component; 61, threaded rod; 62, driving sleeve; 63, insertion rod; 7, limiting assembly; 71, limiting rod; 72, roller; 73, second spring. Detailed Implementation

[0030] Integrated data center micro-module enclosed hot and cold aisle technology is an existing technology. It includes a base a, a main frame d, and several server racks 1. The main frame d is mounted on the base a, and the server racks 1 are arranged face-to-face on the main frame d. Figure 1 The present embodiment improves the enclosed hot and cold aisle of the integrated data center micro-module to enhance heat dissipation efficiency.

[0031] The following will refer to the appendix in the embodiments of this utility model. Figure 1-8 The technical solutions in the embodiments of this utility model will be described in detail below. Example 1

[0032] like Figure 2 , 3 As shown in Figure 5, an integrated data center micro-module enclosed hot and cold aisle includes a cabinet 1 and several micro-modules installed horizontally inside the cabinet 1 (the micro-modules are not shown in the figure, but are generally arranged horizontally and arrayed inside the cabinet along the height direction). Several cable restraint frames are installed at the air outlet 13 of the cabinet 1, which are on the same plane as the micro-modules. Each cable restraint frame includes a cable tray 2, a cable clamp 3, and a locking component 4. The cable tray 2 is horizontally installed at both ends on the side of the air outlet 13 of the cabinet 1 through locking components 5. The cable tray 2 restrains the cables on the micro-modules through the cable clamps 3 and is on the same plane as the micro-modules in the cabinet 1 to prevent the cable tray 2 and cables from blocking the ventilation of the micro-modules. The cable clamps 3 are installed on the upper surface of the cable tray 2 through the locking components 4 to clamp and fix the cables on the micro-modules to avoid the cables being between two micro-modules and causing ventilation blockage.

[0033] like Figure 3 , 4As shown in Figure 5, in this embodiment, one implementation of the ribbon cable board 2 is such that both ends of the ribbon cable board 2 are detachably installed to the side wall of the air outlet 13 of the cabinet 1 via locking components 5, allowing the ribbon cable board 2 of each cabinet to be selectively installed according to the number of micro-modules installed. Two locking components 5 are provided, each including a snap-fit ​​plate 51 and a rack 52, and a driving component 6 that drives the snap-fit ​​plate 51 near the rack 52. Racks 52 along their height direction are welded to both side walls of the air outlet 13 of the cabinet 1. The ribbon cable board 2 is provided with mounting sleeves 23 for installing the driving component 6. The driving component 6 includes a threaded rod 61 and a driving sleeve 62. One end of the threaded rod 61 is welded to the snap-fit ​​plate 51, and the other end is milled to form a cylindrical insert rod 63. The insert rod 63 is slidably inserted into the mounting sleeve 23, and the drive sleeve 62 is rotated and installed on the mounting sleeve 23. The inner wall of the drive sleeve 62 away from the mounting sleeve 23 has an external thread corresponding to the outer wall of the threaded rod 61. Thus, when the drive sleeve 62 is rotated, the drive sleeve 62 pushes the snap-fit ​​plate 51 closer to or away from the ribbon cable board 2 through the threaded engagement with the threaded rod 61, thereby locking or separating the anti-slip protrusion 53 on the snap-fit ​​plate 51 from the rack 52. This allows the ribbon cable board 2 to be selected and installed according to the number of micro-modules and the height of its mounting plane.

[0034] like Figure 5 As shown, the cable clamp 3 includes a clamp body 31 and an elastic clamp piece 32. The elastic clamp piece 32 has a C-shaped structure and can clamp cables of different thicknesses. The bottom of the elastic clamp piece 32 is fixedly welded to the end of the clamp body 31. The cable clamp 3 is detachably connected to the cable tray 2 through the clamp body 31. A cable clamping space is formed in the middle of the elastic clamp piece 32. Both ends of the elastic clamp piece 32 are provided with arc-shaped guide surfaces 33. The arc-shaped guide surfaces 33 are inclined inward along the direction close to the cable clamping space. The arc-shaped guide surfaces can guide the cable to achieve quick clamping onto the cable clamp 3.

[0035] like Figure 2 and 5As shown, the cable tray 2 is horizontally installed at a preset position on the side of the air outlet 13 of the cabinet 1. Several mounting slots 21 are evenly formed along the length of its upper surface. The mounting slots 21 are used to install cable clamps 3. The cable clamps 3 are installed in the mounting slots 21 via a locking member 4. The locking member 4 includes a limiting plate 41 and a first spring 42. Grooves 34 for installing the limiting plates 41 are formed on both sides of the clamp body 31. Two limiting plates 41 are respectively hinged in the two grooves 34 in a manner that mates with the shaft holes of the clamp body 31. A protrusion 43 extends along the thickness direction from the end of the limiting plate 41 away from the clamp body 31. The groove walls on both sides of the mounting slot 21 are concave to form symmetrical first limiting plates. The groove 22 has two first springs 42, which are respectively set between the limiting plate 41 and the clamp 31. The two ends of the first springs 42 are welded to the limiting plate 41 and the clamp 31 respectively. The first limiting groove 22 and the protrusion 43 cooperate to restrict the wire clamp 3 in the mounting groove 21, thereby achieving the purpose of restraining the cable. Several anti-slip dot-shaped protrusions 44 are milled on the protrusion 43. The inner wall of the mounting groove 21 is polished to form a frosted surface. Under the push of the first spring 42, the limiting plate 41 makes the anti-slip dot-shaped protrusions 44 engage with the frosted surface to achieve fastening. A pressing block 45 is set at the end of the limiting plate 41 near the elastic clamp 32 and tilted away from the clamp 31.

[0036] When using this embodiment, the specific operation is as follows: Positioning and locking or removing the ribbon cable 2: Place the ribbon cable 2 at the preset height of the air outlet 13 of the cabinet 1, so that both ends of the ribbon cable 2 are aligned with the inside of the rack 52. At this time, the initial position of the snap-fit ​​plate 51 corresponds to the rack 52 (the anti-slip ridge 53 is not in contact with the rack 52); rotate the drive sleeve 62 clockwise. Since the drive sleeve 62 is threadedly connected to the threaded rod 61, the threaded rod 61 slides along the length of the mounting sleeve 23 until the anti-slip ridge 53 of the snap-fit ​​plate 51 engages with the rack 52 on the inner wall of the cabinet 1. Continue to rotate until the knob can no longer be turned, so that the ribbon cable 2 is fixed horizontally (rotate the drive sleeve 62 counterclockwise, the threaded rod 61 drives the snap-fit ​​plate 51 to move in opposite directions, the anti-slip ridge 53 disengages from the rack 52, and the ribbon cable 2 can be removed), thereby installing the ribbon cable 2 to prevent blockage of the air outlet 13. The cable clamp 3 is connected to the cable tray 2 to constrain the cable: by pressing down the pressing blocks 45 of the limiting plates 41 on both sides of the clamp body 31 (squeezing the first spring 42), the protrusion 43 is retracted into the groove 34 on the side wall of the clamp body 31. The bottom of the cable clamp 3 is aligned with the mounting groove 21 of the cable tray 2. After inserting into the mounting groove 21, the limiting plate 41 is released. The first spring 42 resets and drives the limiting plate 41 to rotate outward. The protrusion 43 is inserted into the mounting groove 21. The anti-slip dot-shaped protrusion 44 engages with the frosted surface to achieve fastening, thus achieving the purpose of fixing the cable clamp 3. The elastic clip 32 has a C-shaped structure. The elastic clip 32 forms a cable clamping space in the middle. Both ends of the elastic clip 32 are provided with arc-shaped guide surfaces 33. When the cable is inserted along the guide surface of the clip, the elastic clip 32 deforms to generate clamping force, realizing the classification and constraint of single, multiple or different thickness cables.

[0037] When the cable tray 2 is installed on the side wall of the air outlet 13 of the cabinet 1, the cable clamps 3 on the cable tray 2 constrain the cables and prevent them from falling under their own weight. This also blocks the heat dissipation channel at the air outlet 13 of the cabinet 1 in the enclosed hot and cold aisle of the data center micro-module, thereby improving heat dissipation efficiency. Example 2

[0038] The difference between this embodiment and Embodiment 1 lies in the limiting component 7, such as... Figure 6 , 7 As shown in Figure 8, two limiting components 7 are provided and respectively installed at the connection between the cable tray 2 and the cabinet 1. The side wall of the cabinet 1 has a second limiting groove 11 along its height direction. The cross-section of the second limiting groove 11 is T-shaped. The rack 52 is located in the second limiting groove 11. Both ends of the cable tray 2 have two guide holes 24 symmetrically arranged with the snap-fit ​​plate 51 as the center. The limiting component 7 includes a set of limiting rods 71, a roller 72 and a second spring 73. The set of limiting rods 71 ​​consists of two L-shaped limiting rods 71. The two limiting rods 71 ​​are snap-fitted together. The connecting plate 51 is centrally symmetrically arranged. The bottom ends of the two limiting rods 71 ​​are welded with guide rods that can be inserted into the guide holes 24. The bottom ends of the guide rods are welded with limiting plates 41. The second spring 73 is sleeved on the guide rod, with one end welded to the inner wall of the cable tray 2 and the other end welded to the limiting ring of the limiting rod 71. The roller 72 is rotatably mounted on the end of the limiting rod 71 near the inner wall of the cabinet 1 through a bearing. The inner wall of the second limiting groove 11 has a positioning groove 12 corresponding to the roller 72 to ensure that the roller 72 limits the limiting rod 71 after it is embedded.

[0039] In this embodiment, the specific operation is as follows: In its natural state, the second spring 73 drives the limiting rod 71 to be fixed on the cable tray 2. Before positioning and locking the ribbon cable board 2: Place the ribbon cable board 2 vertically, and then pull the limiting rod 71 (compressing the second spring 73) to insert the limiting rod 71 into the second limiting groove 11. Rotate the ribbon cable board 2 to change the limiting rod 71 from a vertical state to a horizontal state, so that the roller 72 corresponds to the positioning groove 12. Then release the limiting rod 71. Under the elastic potential energy, the second spring 73 pushes the limiting rod 71 closer to the ribbon cable board 2, so that the roller 72 on the limiting rod 71 is fully embedded in the positioning groove 12. The ribbon cable board 2 can be steplessly adjusted in the vertical direction to ensure that it is on the same plane as the micro-modules of different heights.

[0040] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model.

Claims

1. An integrated data center micro-module enclosed hot and cold aisle, comprising a base, a main frame, and several cabinets (1), wherein the main frame is mounted on the base, and the several cabinets (1) are arranged face-to-face on the main frame, characterized in that: It also includes a cable restraint frame that can be detachably installed on the side of the air outlet (13) of the cabinet (1). The cable restraint frame includes a cable tray (2) and a cable clamp (3). The cable tray (2) is on the same plane as the micro-module of the cabinet (1). The cable tray (2) is horizontally installed at the air outlet (13). Several mounting slots (21) for installing the cable clamp (3) are provided on the upper surface of the cable tray (2). A fastening element (4) for fastening the two is provided between the cable clamp (3) and the mounting slot (21).

2. The integrated data center micro-module enclosed hot and cold aisle according to claim 1, characterized in that: The locking component (4) includes a limiting plate (41) and a first spring (42). There are two limiting plates (41) and they are mounted on the two side walls of the wire clamp (3). The limiting plates (41) are rotatably connected to the wire clamp (3). Each limiting plate (41) has a protrusion (43) on the side away from the wire clamp (3). There are two first springs (42) and they are respectively located between the limiting plate (41) and the wire clamp (3). The groove wall of the mounting groove (21) has a first limiting groove (22) corresponding to the protrusion (43).

3. The integrated data center micro-module enclosed hot and cold aisle according to claim 2, characterized in that: The protrusion (43) is provided with anti-slip dot-shaped protrusions (44), and the groove wall of the first limiting groove (22) is provided on the frosted surface corresponding to the anti-slip dot-shaped protrusions (44).

4. The integrated data center micro-module enclosed hot and cold aisle according to claim 1, characterized in that: The cable tray (2) is provided with locking components (5) on both sides that are connected to the side walls of the air outlet (13) of the cabinet (1).

5. The integrated data center micro-module enclosed hot and cold aisle according to claim 4, characterized in that: The locking assembly (5) has two parts and is respectively located at both ends of the cable tray (2). The locking assembly (5) includes a snap-fit ​​plate (51) and a rack (52). The rack (52) is located on the inner wall of the cabinet (1) near the air outlet (13). The snap-fit ​​plate (51) is slidably located on the cable tray (2). The end face of the snap-fit ​​plate (51) is provided with a number of anti-slip protrusions (53) corresponding to the rack (52). The cable tray (2) is provided with a drive component (6) for driving the snap-fit ​​plate (51) to move synchronously in opposite directions or in opposite directions, so that the anti-slip protrusions (53) are locked or separated from the rack (52).

6. The integrated data center micro-module enclosed hot and cold aisle according to claim 5, characterized in that: Both sides of the cable tray (2) are provided with limiting components (7) connected to the side wall of the air outlet (13). The limiting components (7) include a group of limiting rods (71), a roller (72), and a second spring (73). The group of limiting rods (71) is slidably arranged on the cable tray (2). The group of limiting rods (71) is provided with two limiting rods (71) symmetrically arranged with the snap plate (51) as the center. The roller (72) is rotatably arranged on the limiting rods (71). The second spring (73) is arranged between the cable tray (2) and the limiting rods (71). The second spring (73) has elastic potential energy to drive the limiting rods (71) to approach the cable tray (2). The cabinet (1) has a second limiting groove (11) on both sides of the side wall near the air outlet (13) for the group of limiting rods (71) to be inserted.

7. The integrated data center micro-module enclosed hot and cold aisle according to claim 6, characterized in that: The inner wall of the second limiting groove (11) has a positioning groove (12) corresponding to the roller (72).

8. The integrated data center micro-module enclosed hot and cold aisle according to claim 1, characterized in that: The cable clamp (3) includes a clamp body (31) and an elastic clip (32). The elastic clip (32) has a C-shaped structure. The bottom of the elastic clip (32) is fixedly set at the end of the clamp body (31), and a cable clamping space is formed in the middle of the elastic clip (32).

9. The integrated data center micro-module enclosed hot and cold aisle according to claim 8, characterized in that: Both ends of the elastic clip (32) are provided with arc-shaped guide surfaces (33), and the arc-shaped guide surfaces (33) are inclined inward along the direction close to the cable clamping space.

Images