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EP-4739008-A1 - COMMUNICATION DEVICE FRAME AND COMMUNICATION DEVICE

EP4739008A1EP 4739008 A1EP4739008 A1EP 4739008A1EP-4739008-A1

Abstract

This application provides a communication device subrack and a communication device. The subrack includes a body and a rotating member. A sliding groove is disposed on the body, where the sliding groove extends in a first direction, and the first direction is perpendicular to a height direction of the communication device subrack. The rotating member is rotatably disposed on the body and at least partially located in the sliding groove. A rotation axis of the rotating member extends in a second direction, where the second direction is separately perpendicular to the first direction and the height direction. The rotating member is configured to be in contact with a board, to cause the board to move in the sliding groove. In this application, rolling friction is formed between the board and the rotating member, so that abrasion on the board and the body is greatly reduced, thereby avoiding chipping caused by sliding friction. In addition, this structure further reduces motion resistance to the board, thereby greatly reducing insertion and removal force of the board, facilitating operations, and improving insertion and removal experience.

Inventors

  • LIU, Detong
  • HUANG, Lezheng
  • LIU, Jiangfeng

Assignees

  • Huawei Technologies Co., Ltd.

Dates

Publication Date
20260506
Application Date
20240115

Claims (20)

  1. A communication device subrack, comprising: a body (1), wherein a sliding groove (11) is disposed on the body (1), the sliding groove (11) extends in a first direction (X), and the first direction (X) is perpendicular to a height direction (Z) of the communication device subrack; and a rotating member (2), wherein the rotating member (2) is rotatably disposed on the body (1) and at least partially located in the sliding groove (11), a rotation axis of the rotating member (2) extends in a second direction (Y), the second direction (Y) is separately perpendicular to the first direction (X) and the height direction (Z), and the rotating member (2) is configured to be in contact with a board (200), to cause the board (200) to move in the sliding groove (11).
  2. The communication device subrack according to claim 1, wherein the rotating member (2) is a needle roller (21).
  3. The communication device subrack according to claim 2, wherein the body (1) comprises a first bottom plate (13) and a plurality of guiding convex ribs (12), the guiding convex rib (12) is connected to the first bottom plate (13), the guiding convex rib (12) protrudes from a surface of the first bottom plate (13), and the sliding groove (11) is formed between the first bottom plate (13) and at least two adjacent guiding convex ribs (12); and the needle roller (21) is rotatably disposed on the first bottom plate (13).
  4. The communication device subrack according to claim 3, wherein a first through hole (131) is provided on the first bottom plate (13), the needle roller (21) is rotatably disposed in the first through hole (131), the needle roller (21) at least partially extends out of the first through hole (131) toward a side of the guiding convex rib (12), and in the height direction (Z) of the communication device subrack, projections of two ends of the needle roller (21) at least partially overlap projections of corresponding guiding convex ribs (12) respectively.
  5. The communication device subrack according to claim 4, wherein the communication device subrack (10) further comprises a limiting member (3), the limiting member (3) is connected to the body (1), and the limiting member (3) at least partially blocks, in the height direction (Z) of the communication device subrack, a side that is of the first through hole and that is away from the guiding convex rib (12).
  6. The communication device subrack according to claim 4, wherein a groove (121) is disposed on one end that is of the guiding convex rib (12) and that is connected to the first bottom plate (13), the groove (121) is in communication with the first through hole (131) in the second direction (Y), and the two ends of the needle roller (21) are rotatably disposed in grooves (121) on the corresponding guiding convex ribs (12) respectively.
  7. The communication device subrack according to claim 5, wherein a hollowed portion (14) is disposed on the body (1), and the hollowed portion (14) is disposed between two adjacent sliding grooves (11).
  8. The communication device subrack according to claim 7, wherein the limiting member (3) comprises a second bottom plate (31), a first baffle (32), and a second baffle (33), the first baffle (32) and the second baffle (33) are respectively connected to two ends of the second bottom plate (31), the second bottom plate (31) is connected to the first bottom plate (13), the first baffle (32) extends into the hollowed portion (14) on one side of the sliding groove (11) and blocks one end of the needle roller (21) in the second direction (Y), and the second baffle (33) extends into the hollowed portion (14) on the other side of the sliding groove (11) and blocks the other end of the needle roller (21) in the second direction (Y).
  9. The communication device subrack according to claim 1, wherein the rotating member (2) is a ball roller (22).
  10. The communication device subrack according to claim 9, wherein the communication device subrack (10) further comprises a first support frame (4a), the first support frame (4a) is connected to the body (1), a gap (a) exists between the first support frame (4a) and a bottom surface of the body (1), and the ball roller (22) is rotatably disposed in the gap (a); and a second through hole (15) is provided on the body (1), a diameter of the second through hole (15) is less than a diameter of the ball roller (22), and the ball roller (22) at least partially extends out of the second through hole (15).
  11. The communication device subrack according to claim 10, wherein a flange (151) is disposed at an edge of the second through hole (15), the flange (151) protrudes from a surface that is of the body (1) and that is away from the first support frame (4a), and the ball roller (22) at least partially protrudes from an end face of the flange (151).
  12. The communication device subrack according to claim 10 or 11, wherein the first support frame (4a) comprises a mounting plate (4a1) and a support plate (4a2), the mounting plate (4a1) is connected to the support plate (4a2) and is configured to connect to an inner side wall of a chassis body (100) of a communication device, and the gap (a) exists between the body (1) and the support plate (4a2).
  13. The communication device subrack according to claim 9, wherein the communication device subrack (10) further comprises a second support frame (4b), the second support frame (4b) is connected to the body (1), a mounting hole (16) is provided on the body (1), an inner diameter of the mounting hole (16) gradually decreases from a side close to the second support frame (4b) to a side away from the second support frame (4b) in the height direction (Z) of the communication device subrack, an inner diameter that is of the mounting hole (16) and that is on the side close to the second support frame (4b) is greater than a diameter of the ball roller (22), and an inner diameter that is of the mounting hole (16) and that is on the side away from the second support frame (4b) is less than the diameter of the ball roller (22), to cause the ball roller (22) to at least partially extend out of the side that is of the mounting hole (16) and that is away from the second support frame (4b).
  14. The communication device subrack according to any one of claims 1 to 13, wherein a plurality of rotating members (2) are disposed, and at least a part of the rotating members (2) have different sizes in the height direction (Z) of the communication device subrack.
  15. The communication device subrack according to any one of claims 1 to 14, wherein the sliding groove (11) comprises a first support area and a second support area in the first direction (X), and the first support area is closer to an entrance side of the sliding groove (11) than the second support area; and the plurality of rotating members (2) are disposed, and in the first direction (X), a distance between two adjacent rotating members (2) in the first support area is less than a distance between two adjacent rotating members (2) in the second support area.
  16. The communication device subrack according to any one of claims 1 to 15, wherein the communication device subrack further comprises a guiding member (5), the guiding member (5) is connected to the body (1), and the guiding member (5) is aligned with the sliding groove (11) in the first direction (X).
  17. The communication device subrack according to any one of claims 1 to 16, wherein the communication device subrack further comprises the chassis body (100), and the body (1) is disposed in the chassis body (100).
  18. The communication device subrack according to claim 17, wherein a plurality of bodies (1) are disposed, and the plurality of bodies (1) are symmetrically disposed on an inner wall at the top of the chassis body (100) and an inner wall at the bottom of the chassis body (100).
  19. The communication device subrack according to claim 17, wherein a plurality of bodies (1) are disposed, and the plurality of bodies (1) are symmetrically disposed on inner walls of two opposite side walls of the chassis body (100).
  20. A communication device, comprising a board (200) and the communication device subrack (10) according to any one of claims 1 to 19, wherein the board (200) is mounted in a sliding groove (11) of the communication device subrack and is supported on a rotating member (2).

Description

The present invention claims priority to Chinese Patent Application No. 202322284637.5, filed with the China National Intellectual Property Administration on August 23, 2023 and entitled "COMMUNICATION DEVICE SUBRACK AND COMMUNICATION DEVICE", which is incorporated herein by reference in its entirety. TECHNICAL FIELD This application relates to the field of communication technologies, and in particular, to a communication device subrack and a communication device. BACKGROUND As an integration degree of a board in a communication device becomes higher, the board develops toward a hardware layout with high density and heavy weight. However, when the board exceeds a weight, relative sliding friction between the board and a chassis may cause chipping in a process of inserting the board into the chassis. Metal chips may cause a safety accident on the device, and non-metal chips may affect cooperation between connectors inside the chassis, causing a fault. SUMMARY An objective of this application is to provide a communication device subrack and a communication device, to resolve an existing problem of chipping in a process of inserting a board into a chassis. A first aspect of this application provides a communication device subrack. The subrack includes a body and a rotating member. A sliding groove extending in a first direction is disposed on the body, where the first direction is perpendicular to a height direction of the communication device subrack. The rotating member is rotatably disposed on the body and at least partially located in the sliding groove. A rotation axis of the rotating member extends in a second direction, where the second direction is separately perpendicular to the first direction and the height direction. The rotating member is configured to be in contact with a board, to cause the board to move in the sliding groove. In this application, rolling friction is formed between the board and the rotating member, so that abrasion on the board and the body is greatly reduced, thereby avoiding chipping caused by sliding friction. In addition, this structure further reduces motion resistance to the board, thereby greatly reducing insertion and removal force of the board, facilitating operations, and improving insertion and removal experience. In a possible design, the rotating member is a needle roller. In an insertion process of the board, the needle roller may rotate through rolling friction force between the needle roller and the board, to prevent the board from being subject to large friction and causing chipping. In addition, the motion resistance to the board is reduced, the insertion and removal force of the board is reduced, and the insertion and removal experience is improved. In a possible design, the body includes a first bottom plate and a plurality of guiding convex ribs. The guiding convex rib is connected to the first bottom plate, and the guiding convex rib protrudes from a surface of the first bottom plate. The sliding groove is formed between the first bottom plate and at least two adjacent guiding convex ribs. The needle roller is rotatably disposed on the first bottom plate. The needle roller at least partially protrudes from the surface of the first bottom plate. In a process of inserting and removing the board, the board may be in contact with a part that is of the needle roller and that protrudes from the first bottom plate, but may not be in contact with the first bottom plate, so that friction between the board and the body in the process of inserting and removing the board is reduced through rolling of the needle roller, and chipping is avoided. In a possible design, a first through hole is provided on the first bottom plate, and the needle roller is rotatably disposed in the first through hole. The needle roller at least partially extends out of the first through hole toward a side of the guiding convex rib, and in the height direction of the communication device subrack, projections of two ends of the needle roller at least partially overlap projections of the corresponding guiding convex ribs respectively. A length of the needle roller is greater than a distance between the two adjacent guiding convex ribs forming the sliding groove. After the needle roller is mounted in the first through hole, the guiding convex ribs on two sides of the sliding groove may block the two ends of the needle roller, so that the needle roller can be limited in the height direction of the subrack, and it is ensured that the needle roller can stably rotate in the first through hole. In a possible design, the communication device subrack further includes a limiting member connected to the body. The limiting member at least partially blocks, in the height direction of the communication device subrack, a side that is of the first through hole and that is away from the guiding convex rib. The limiting member is used to block the side that is of the first through hole and that is away from the