Heat dissipation architecture, chassis, network device and communications system

Abstract

The embodiments of the present application relate to the technical field of communications. Provided are a heat dissipation architecture, a chassis, a network device and a communications system, which are configured to meet heat dissipation requirements both before and after network upgrading while reducing the cost. The heat dissipation architecture comprises a heat dissipation frame, at least one limiting member and at least one fan box. The heat dissipation frame is provided with a heat dissipation cavity. The heat dissipation frame comprises a first cavity wall and a second cavity wall, which are arranged opposite each other. The heat dissipation frame is provided with first ventilation openings in communication with the heat dissipation cavity. The limiting member is located in the heat dissipation cavity, and is disposed on the first cavity wall. A first accommodating cavity is formed between the second cavity wall and the side surface of the limiting member facing away from the first cavity wall. The limiting member divides the heat dissipation cavity in the extension direction of the limiting member into a second accommodating cavity and a third accommodating cavity; and the fan box is located in the heat dissipation cavity, with air vents of the fan box facing the first ventilation openings. The fan box is in sliding fit with the limiting member in the extension direction of the limiting member.

Description

Heat dissipation architecture, plug-in frame, network equipment and communication system

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on December 15, 2023, with application number 202323436957.4 and application name “A heat dissipation architecture, plug-in frame, network equipment and communication system”, all contents of which are incorporated by reference into this application. Technical Field

[0002] The utility model relates to the field of communication technology, and in particular to a heat dissipation architecture, a plug-in frame, a network device and a communication system. Background Art

[0003] Subracks are mainly used in optical access central office equipment, switches, data centers, servers and other network equipment for processing and distributing data or signals.

[0004] With the advent of the era of massive data, the demand for high-bandwidth transmission and high-performance computing continues to rise. After being integrated into network equipment, the subracks evolve as the workload of the network equipment changes. As the subracks evolve and the network gradually upgrades, the power consumption of the subracks gradually increases, and the required heat dissipation capacity also gradually increases. A heat dissipation architecture that can match the evolution of the subracks is urgently needed to meet heat dissipation requirements while reducing costs.

[0005] Utility Model Content

[0006] The purpose of this application is to provide a heat dissipation architecture, a frame, a network device and a communication system, which can ensure heat dissipation requirements before and after network upgrades while reducing costs.

[0007] To achieve the above objectives, the present invention adopts the following technical solutions:

[0008] According to a first aspect of an embodiment of the present application, a heat dissipation structure is provided, which includes: a heat dissipation frame, at least one limiter and at least one fan box. The heat dissipation frame has a heat dissipation cavity. The heat dissipation frame includes a first cavity wall and a second cavity wall arranged opposite to each other. A first vent connected to the heat dissipation cavity is provided on the heat dissipation frame. The limiter is located in the heat dissipation cavity, and the limiter is arranged on the first cavity wall. A first accommodating cavity is formed between a side surface of the limiter facing away from the first cavity wall and the second cavity wall. The limiter divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along the extension direction of the limiter; the fan box is located in the heat dissipation cavity, and the air outlet of the fan box faces the first vent. The fan box slides with the limiter along the extension direction of the limiter.

[0009] As can be seen from the above, the heat dissipation frame of the heat dissipation architecture has a heat dissipation cavity, and the fan box can be arranged in the heat dissipation cavity. The air outlet of the fan box faces the first vent opened on the heat dissipation frame, so that the air outlet of the fan box and the first vent can ventilate each other to achieve heat dissipation. In addition, the heat dissipation architecture also includes a limiter, which is arranged on the first cavity wall, and a side surface of the limiter facing away from the first cavity wall forms a first accommodating cavity with the second cavity wall. In addition, the limiter divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along the extension direction of the limiter. At this time, the fan box can be arranged in the first accommodating cavity. Alternatively, the fan box can also be arranged in the second accommodating cavity or the third accommodating cavity. Alternatively, a portion of the fan box can be arranged in the second accommodating cavity, and the other portion can be arranged in the third accommodating cavity. When heat dissipation requirements are low, the heat dissipation architecture can include a single fan box within the first accommodating cavity. In this case, the limiter, parallel to the first cavity wall and perpendicular to the extension direction of the limiter, does not obstruct the placement of the fan box within the first accommodating cavity. This allows the fan box to be larger, thus ensuring the required heat dissipation. Compared to installing multiple fan boxes, installing a single fan box is less expensive, thus reducing costs before network upgrades. However, when the heat dissipation architecture includes only one fan box, if it malfunctions or requires maintenance, it must be shut down and removed for repair and maintenance. This temporarily deprives the heat dissipation architecture of its function, making it unable to meet the higher heat dissipation requirements. When heat dissipation requirements increase after a network upgrade, the heat dissipation architecture can include two independent fan boxes within the first and second accommodating cavities. When one fan box requires repair or maintenance, the other continues to operate, ensuring that the heat dissipation architecture does not completely lose its function and can meet the higher heat dissipation requirements. Furthermore, the power consumption of the two fan boxes can be adjusted based on the heat dissipation requirements of different regions, ensuring optimal overall power consumption while ensuring heat dissipation requirements. This is to ensure heat dissipation requirements before and after network upgrades while reducing costs.

[0010] In some embodiments of the present application, the at least one limiter mentioned above includes a first limiter, which divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along the extension direction of the first limiter; the at least one fan box mentioned above includes a first fan box and a second fan box. The first fan box is arranged in the second accommodating cavity, and a side surface of the first fan box facing the third accommodating cavity slides with the first limiter. The second fan box is arranged in the third accommodating cavity, and a side surface of the second fan box facing the second accommodating cavity slides with the first limiter. Wherein, there is a first gap between the first fan box and the second fan box, and the first limiter is located in the first gap. As can be seen from the above, the first limiter is located in the first gap between the first fan box and the second fan box, and both the first fan box and the second fan box slide with the first limiter. At this time, the first limiting member can limit the first fan box and the second fan box respectively in a direction perpendicular to the extension direction of the first limiting member and parallel to the first cavity wall. The first fan box and the second fan box can only slide along the extension direction of the first limiting member, so that the first limiting member can guide the sliding of the first fan box and the second fan box respectively, thereby ensuring that the first fan box and the second fan box can be installed in the expected position.

[0011] In some embodiments of the present application, the at least one stopper may further include a second stopper, the second stopper being located within the third accommodating chamber and dividing the third accommodating chamber into a fourth accommodating chamber and a fifth accommodating chamber along the extension direction of the second stopper. The second fan box is located within the fourth accommodating chamber, and a side surface of the second fan box facing the fifth accommodating chamber slides with the second stopper. The at least one fan box may further include a third fan box located within the fifth accommodating chamber, and a side surface of the third fan box facing the fourth accommodating chamber slides with the second stopper. A second gap is defined between the second and third fan boxes, and the second stopper is located within the second gap. As can be seen from the above, the first stopper and the second stopper divide the heat dissipation chamber into the second accommodating chamber, the fourth accommodating chamber, and the fifth accommodating chamber along the extension direction of the first stopper and the second stopper. The second fan box is disposed within the fourth accommodating chamber and is limited and guided by the second stopper, which guides the sliding movement of the second fan box. The third fan box is disposed within the fifth accommodating chamber and is limited and guided by a second stopper. The second stopper guides the sliding movement of the third fan box. This ensures that if multiple fan boxes need to be replaced after a network upgrade, both the second and third fan boxes can be installed in their intended positions.

[0012] In some embodiments of the present application, the at least one stopper may include a first stopper, which divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along the extension direction of the first stopper. The at least one fan box may include a first fan box and a second fan box. The first fan box is disposed in the second accommodating cavity. A first slide groove is provided on the side of the first fan box facing the first cavity wall. The first stopper is located in the first slide groove and cooperates with the first slide groove. The second fan box is disposed in the third accommodating cavity. A side surface of the second fan box facing the second accommodating cavity slides with the stopper. In this case, the first stopper is located in the first slide groove of the first fan box, and the first stopper cooperates with the first slide groove so that the first fan box can only slide along the extension direction of the first stopper. This allows the first stopper to limit and guide the first fan box, ensuring that the first fan box can be installed in the intended position. In addition, the first stopper is located in the first slide groove. In this case, the gap between the surface of the first fan box facing the second fan box and the surface of the second fan box facing the first fan box can be small or even non-existent. In this case, the space occupied by the first fan box and the second fan box in the heat dissipation cavity is large, thereby improving the space utilization rate in the heat dissipation cavity.

[0013] In some embodiments of the present application, the surface of the first fan box facing the second fan box abuts the surface of the second fan box facing the first fan box. In this case, there is no gap between the first fan box and the second fan box except for the first slide groove for accommodating the first limiter, further increasing the space occupied by the first fan box and the second fan box in the heat dissipation cavity, thereby further improving the space utilization rate in the heat dissipation cavity.

[0014] In some embodiments of the present application, the at least one limiter mentioned above includes a first limiter, which divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along the extension direction of the first limiter. The at least one fan box mentioned above includes a first fan box and a second fan box. The first fan box is arranged in the second accommodating cavity, and a first recessed portion is provided on the side of the first fan box facing the first cavity wall. The second fan box is arranged in the third accommodating cavity, and a second recessed portion is provided on the side of the second fan box facing the first cavity wall. The first recessed portion and the second recessed portion together form a second slide. The first limiter is located in the second slide and cooperates with the second slide. Similar to the embodiment in which the first fan box is provided with a first slide on the side facing the first cavity wall, the first limiter is located in the second slide formed by the first recessed portion of the first fan box and the second recessed portion of the second fan box, and the first limiter cooperates with the second slide. The first limiting member can guide the sliding of the first fan box and the second fan box respectively, so as to ensure that the first fan box and the second fan box can be installed in the expected positions.

[0015] In some embodiments of the present application, the at least one limiter mentioned above may include a first limiter and a second limiter. The first limiter divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along the extension direction of the first limiter. The second limiter is located in the third accommodating cavity, and the second limiter divides the third accommodating cavity into a fourth accommodating cavity and a fifth accommodating cavity along the extension direction of the second limiter. The at least one fan box mentioned above may include a first fan box and a second fan box. The first fan box is arranged in the second accommodating cavity and the fourth accommodating cavity, located between the first limiter and the second cavity wall, and the first fan box slides with the surface of the first limiter facing the second cavity wall. The second fan box is arranged in the fourth accommodating cavity and the fifth accommodating cavity, located between the second limiter and the second cavity wall, and the second fan box slides with the surface of the second limiter facing the second cavity wall. As can be seen from the above, a portion of the first fan box is arranged in the second accommodating cavity, and the other portion is arranged in the fourth accommodating cavity, and slides with the first limiter. At this point, the first fan box can slide along the first stopper toward the surface of the second cavity wall, thereby enabling installation and removal of the first fan box. Furthermore, a portion of the second fan box is disposed within the fourth accommodating cavity, while the remaining portion is disposed within the fifth accommodating cavity, and both portions slide in engagement with the second stopper. Similarly, the second fan box can slide along the second stopper toward the surface of the second cavity wall, thereby enabling installation and removal of the second fan box.

[0016] In some embodiments of the present application, a third slide is provided on the side of the first fan box facing the first cavity wall. A first stopper is located within and engages with the third slide. A fourth slide is provided on the side of the second fan box facing the first cavity wall. A second stopper is located within and engages with the fourth slide. As can be seen from the above, the first stopper is located within and engages with the third slide of the first fan box. In this case, the first stopper can limit the first fan box in a direction perpendicular to the extension direction of the first stopper and parallel to the first cavity wall, thereby guiding the sliding movement of the first fan box. Similarly, the second stopper is located within and engages with the fourth slide of the second fan box. The second stopper can also limit and guide the second fan box, thereby guiding the sliding movement of the second fan box, thereby ensuring that both the first and second fan boxes can be installed in their intended positions.

[0017] In some embodiments of the present application, the fan box is disposed in the first accommodating cavity. Before the network upgrade, only one fan box can be installed in the heat dissipation cavity, thereby meeting the low heat dissipation requirements before the network upgrade while reducing costs.

[0018] In some embodiments of the present application, the fan box may include a first portion and a second portion. The first portion is disposed within the first accommodating chamber. A fifth slide groove is disposed on the side of the second portion facing the first cavity wall, and a retaining member is located within the fifth slide groove and cooperates with the fifth slide groove. In this case, the second portion of the fan box is located between the first cavity wall and a surface of the retaining member facing away from the first cavity wall. Compared to disposing the entire fan box within the first accommodating chamber, the fan box occupies a larger space in the heat dissipation cavity, thereby improving space utilization within the heat dissipation cavity.

[0019] In some embodiments of the present application, the fan box may include a first fan assembly and a second fan assembly, and the first fan assembly and the second fan assembly are connected on a side facing away from the heat dissipation cavity. A third gap is provided between the first fan assembly and the second fan assembly. A stopper is located within the third gap. At this time, the stopper is located in the third gap between the first fan assembly and the second fan assembly, and the stopper does not hinder the first fan assembly and the second fan assembly from being installed in the heat dissipation cavity. This ensures that before the network is upgraded, only one larger fan box can be installed in the heat dissipation cavity to meet the low heat dissipation requirements before the network upgrade.

[0020] According to a second aspect of an embodiment of the present application, a heat dissipation structure is provided, which includes a heat dissipation frame and at least one limiter. The heat dissipation frame has a heat dissipation cavity. The heat dissipation frame includes a first cavity wall and a second cavity wall arranged opposite to each other. A first vent connected to the heat dissipation cavity is provided on the heat dissipation frame. The limiter is located in the heat dissipation cavity, and the limiter is arranged on the first cavity wall. A first accommodating cavity is formed between the side surface of the limiter facing away from the first cavity wall and the second cavity wall. The limiter divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along the extension direction of the limiter. The above-mentioned heat dissipation structure has the same technical effect as the heat dissipation structure provided in the aforementioned embodiment, and will not be repeated here.

[0021] A third aspect of the embodiments of the present application provides a heat dissipation architecture comprising a heat dissipation frame and at least one retaining member. The heat dissipation frame has a heat dissipation cavity. The heat dissipation frame includes a first cavity wall and a second cavity wall disposed opposite each other. The heat dissipation frame defines a first vent communicating with the heat dissipation cavity. The retaining member is located within the heat dissipation cavity. The retaining member is detachably connected to the first cavity wall and divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along the extension direction of the retaining member. As can be seen from the above, the retaining member is detachable from the first cavity wall. Before a network upgrade, when heat dissipation requirements are low, the retaining member can be removed from the first cavity wall to allow installation of a larger fan box within the heat dissipation cavity. After the network upgrade, when heat dissipation requirements are high, the retaining member can be installed on the first cavity wall to divide the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity. Two independent fan boxes can be installed in each of the second and third accommodating cavities. This ensures that the fan boxes can be repaired or maintained one by one, ensuring that at least one fan box is in working order and meets heat dissipation requirements. This is to ensure heat dissipation requirements before and after network upgrades while reducing costs.

[0022] A fourth aspect of the embodiments of the present application provides a heat dissipation structure comprising a heat dissipation frame, at least one stopper, and a fan box. The heat dissipation frame has a heat dissipation cavity. The heat dissipation frame includes a first cavity wall and a second cavity wall disposed opposite each other. The heat dissipation frame defines a first vent communicating with the heat dissipation cavity. The stopper is located within the heat dissipation cavity. The first end of the stopper is fixedly connected to the first cavity wall, and the second end of the stopper is connected to the second cavity wall. The stopper divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along the extension direction of the stopper. The fan box is located within the heat dissipation cavity and includes a first fan assembly and a second fan assembly. The first and second fan assemblies are connected on sides facing away from the heat dissipation cavity, with a third gap defined between them. The stopper is located within the third gap. In this case, the first end of the stopper is fixedly connected to the first cavity wall, and the second end of the stopper is connected to the second cavity wall. This provides a relatively secure fixation of the stopper, thereby ensuring a stable connection between the stopper and the heat dissipation frame. In addition, the limiting member is located in the third gap between the first fan assembly and the second fan assembly. The limiting member will not hinder the first fan assembly and the second fan assembly from being installed in the heat dissipation cavity. This ensures that before the network upgrade, only one larger fan box can be installed in the heat dissipation cavity to meet the low heat dissipation requirements before the network upgrade. After the network upgrade, two independent fan boxes can be replaced and installed in the second and third accommodating cavities respectively to ensure that when the fan boxes are repaired or maintained, they can be carried out one by one to ensure that at least one fan box is in working condition to meet the heat dissipation requirements. This achieves the purpose of ensuring heat dissipation requirements before and after the network upgrade while reducing costs.

[0023] According to a fifth aspect of the embodiments of the present application, a plug-in frame is provided, which includes the heat dissipation structure described in any of the above embodiments, and the plug-in frame also includes a frame and a plurality of single boards. The heat dissipation structure and the single board are both arranged in the frame. Each single board is located on the same side of the heat dissipation structure, and there is a heat dissipation gap between adjacent single boards, and the heat dissipation gap is connected to the first vent. As can be seen from the above, the heat dissipation gap is connected to the first vent. Exemplarily, the heat dissipation structure sucks air into the heat dissipation gap through the first vent, and then causes the gas in the heat dissipation gap to flow to the first vent to reduce the temperature in the heat dissipation gap. Alternatively, the heat dissipation structure supplies air to the heat dissipation gap through the first vent, thereby causing the gas in the heat dissipation gap to flow, thereby taking away the heat from the heat dissipation gap to achieve the heat dissipation function. In addition, the above-mentioned plug-in frame also has the same technical effect as the heat dissipation structure provided in any of the above embodiments, which will not be repeated here.

[0024] In a sixth aspect of the embodiments of the present application, a network device is provided, which includes one or more subracks. The above network device has the same technical effects as the subracks provided in the above embodiments, and will not be described in detail here.

[0025] In a seventh aspect of the present application, a communication system is provided, comprising the aforementioned network device and a first access device connected to the network device. The aforementioned communication system has the same technical effects as the subrack provided in the aforementioned embodiment, and will not be further described here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a schematic diagram of the structure of a communication system provided in an embodiment of the present application;

[0027] FIG2 is a schematic diagram of the structure of another communication system provided in an embodiment of the present application;

[0028] FIG3A is a schematic structural diagram of a subrack provided in an embodiment of the present application and provided with a fan box;

[0029] FIG3B is a schematic structural diagram of a subrack provided with multiple fan boxes according to an embodiment of the present application;

[0030] FIG3C is a schematic diagram of the structure of a frame after the fan box is removed according to an embodiment of the present application;

[0031] FIG3D is a schematic structural diagram of another frame after the fan box is removed according to an embodiment of the present application;

[0032] FIG4A is a front view of a first plug-in frame provided in an embodiment of the present application;

[0033] FIG4B is a front view of a second plug-in frame provided in an embodiment of the present application;

[0034] FIG4C is a front view of a third plug-in frame provided in an embodiment of the present application;

[0035] FIG4D is a front view of a fourth plug-in frame provided in an embodiment of the present application;

[0036] FIG4E is a top view of a fifth insertion frame provided in an embodiment of the present application;

[0037] FIG4F is a top view of a sixth plug-in frame provided in an embodiment of the present application;

[0038] FIG5A is a schematic diagram of an assembly of a heat dissipation frame and a limiting member provided in an embodiment of the present application;

[0039] FIG5B is a front view of FIG5A;

[0040] FIG5C is another front view of FIG5A;

[0041] FIG6 is a schematic structural diagram of a fan box provided in an embodiment of the present application;

[0042] FIG7 is a schematic diagram of the assembly of another heat dissipation frame and a limiting member provided in an embodiment of the present application;

[0043] FIG8 is a schematic structural diagram of a first heat dissipation architecture provided in an embodiment of the present application;

[0044] FIG9 is a schematic diagram of an assembly of another heat dissipation frame and a limiting member provided in an embodiment of the present application;

[0045] FIG10 is a schematic diagram of the structure of a second heat dissipation architecture provided in an embodiment of the present application;

[0046] FIG11 is a schematic structural diagram of a third heat dissipation architecture provided in an embodiment of the present application;

[0047] FIG12 is a schematic structural diagram of a fourth heat dissipation architecture provided in an embodiment of the present application;

[0048] FIG13 is a schematic structural diagram of a fifth heat dissipation architecture provided in an embodiment of the present application;

[0049] FIG14 is a schematic structural diagram of a sixth heat dissipation architecture provided in an embodiment of the present application;

[0050] FIG15 is a schematic structural diagram of a seventh heat dissipation architecture provided in an embodiment of the present application;

[0051] FIG16 is a schematic structural diagram of an eighth heat dissipation architecture provided in an embodiment of the present application;

[0052] FIG17 is a schematic structural diagram of a ninth heat dissipation architecture provided in an embodiment of the present application;

[0053] FIG18 is a schematic structural diagram of a tenth heat dissipation architecture provided in an embodiment of the present application;

[0054] FIG19 is a schematic structural diagram of an eleventh heat dissipation architecture provided in an embodiment of the present application;

[0055] FIG20 is a schematic structural diagram of another fan box provided in an embodiment of the present application;

[0056] FIG21 is a schematic structural diagram of the twelfth heat dissipation architecture provided in an embodiment of the present application.

[0057] Reference numerals:

[0058] 01-communication system; 02-network equipment; 10-insert frame; 11-heat dissipation structure; 111-heat dissipation frame; 1111-heat dissipation cavity; 11111-first accommodating cavity; 11112-second accommodating cavity; 11113-third accommodating cavity; 111131-fourth accommodating cavity; 111132-fifth accommodating cavity; 1111321-sixth accommodating cavity; 1111322-seventh accommodating cavity; 1112-first vent; 1113-first cavity wall; 1114-second cavity wall; 1115-second vent; 112-limiting member; 1121-first end; 1122-second end; a1-first limiting member; a2-second limiting member; a3-third limiting member; 113-fan box; 1131-air vent; 1132-first part; 1133-second part Part two; 11331-fifth slide; 1134-first fan assembly; 1135-second fan assembly; 1136-third gap; b1-first fan box; b11-first slide; b12-first recess; b13-third slide; b2-second fan box; b21-second recess; b22-sixth slide; b23-third recess; b24-fourth slide; b3-third fan box; b31-fourth recess; b32-eighth slide; b4-fourth fan box; 114-first gap; 115-second gap; 116-second slide; 117-seventh slide; 12-frame; 13-single board; 14-heat dissipation gap; 15-backplane; 16-connector; 20-patch panel; 03-first access device; 04-second access device. DETAILED DESCRIPTION

[0059] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0060] In the following, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", etc. are used only for convenience of description and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0061] In this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be an electrical connection or an optical fiber connection; or, "connection" can be a fixed mechanical connection, a detachable mechanical connection, or an integrated one; or, "connection" can be a direct connection or an indirect connection through an intermediate medium.

[0062] In the embodiments of this application, words such as "exemplarily" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplarily" is intended to present the relevant concepts in a concrete manner.

[0063] In the drawings of the embodiments of the present application, components are represented by guide lines with arrows; parts are represented by guide lines only; and hollow structures such as openings and holes are represented by guide lines with a hollow circle at one end.

[0064] An embodiment of the present application provides a communication system 01, as shown in Figure 1. The communication system 01 may include a network device 02 and a first access device 03 connected to the network device 02. The first access device 03 may send signals to the network device 02, and the network device 02 may process or store the received signals. Alternatively, the network device 02 may send signals to the first access device 03, thereby enabling signal exchange between the network device 02 and the first access device 03.

[0065] Continuing with Figure 1 , the communication system 01 may also include multiple second access devices 04 connected to the network device 02. Similar to the first receiving device 03 described above, the second access devices 04 and the network device 02 can also exchange signals. For example, the network device 02 may receive a signal from the first access device 03, process and distribute the signal, and then transmit the signal to different second access devices 04. Alternatively, the network device 02 may receive a signal from a second access device 04 and transmit the signal to the first access device 03.

[0066] The above embodiment is shown in Figure 1, which takes the communication system 01 as an example, including 1 network device 02, 1 first access device 03 and 2 second access devices 04. In other embodiments of the present application, the number of network devices 02, first access devices 03 and second access devices 04 can be other numbers.

[0067] In addition, the network device 02 may be an optical access central office device, a switch, a data center, a server, etc. For ease of description, the following description will take the network device 02 as an optical access central office device as an example.

[0068] As shown in Figure 2, the network device 02 of the communication system 01 is an optical access terminal device. At this time, in some embodiments of the present application, the first access device 03 can be a central computer room or a base station, and the second access device 04 can be an optical network terminal (ONT) or an optical network unit (ONU). The optical access terminal device includes a subrack 10 and multiple distribution frames 20. The subrack 10 is connected to the first access device 03 and exchanges optical signals. At the same time, the subrack 10 is connected to the distribution frame 20 and exchanges optical signals. Therefore, after the first access device 03 sends the optical signal to the subrack 10, it is distributed to different distribution frames 20 through the subrack 10, and then distributed to different second access devices 04 through different distribution frames 20. Alternatively, the second access device 04 sends the optical signal to the subrack 10 through the distribution frame 20, and the subrack 10 processes it and then sends it to the first access device 03. This completes the transmission of the optical signal.

[0069] The above embodiment, as shown in FIG2 , takes as an example a communication system 01 including one optical access central office device, one first access device 03, and two second access devices 04, and the optical access central office device includes one subrack 10 and two patch panels 20. In other embodiments of the present application, the number of optical access central office devices, first access devices 03, and second access devices 04 can be other numbers. The number of subracks 10 and patch panels 20 can also be other numbers.

[0070] Based on this, in some embodiments of the present application, the above-mentioned plug-in frame 10 may include a heat dissipation structure 11, a frame 12, and multiple single boards 13 as shown in Figure 3A. The heat dissipation structure 11 and the single board 13 can be set in the frame 12. The frame 12 can limit the heat dissipation structure 11 and the single board 13 and play a protective role. Multiple single boards 13 are all located on the same side of the heat dissipation structure 11, and there is a heat dissipation gap 14 between adjacent single boards 13. When the single board 13 is working, heat is generated around the single board 13 and dissipated into the heat dissipation gap 14. At this time, the heat dissipation structure 11 absorbs or supplies air to the heat dissipation gap 14, thereby causing the gas in the heat dissipation gap 14 to flow, thereby taking away the heat of the heat dissipation gap 14, and thus reducing the temperature around the single board 13. Finally, the heat dissipation of the plug-in frame 10 is completed.

[0071] For example, the heat dissipation structure 11 can be disposed above the single board 13 as shown in FIG4A . Alternatively, the heat dissipation structure 11 can be disposed below the single board 13 as shown in FIG4B . Alternatively, the heat dissipation structure 11 can be disposed on the right side of the single board 13 as shown in FIG4C . Alternatively, the heat dissipation structure 11 can be disposed on the left side of the single board 13 as shown in FIG4D . Alternatively, the heat dissipation structure 11 can be disposed on the front side of the single board 13 as shown in FIG4E . Alternatively, the heat dissipation structure 11 can be disposed on the rear side of the single board 13 as shown in FIG4F .

[0072] Furthermore, as shown in Figure 3C or Figure 3D, the above-mentioned plug-in frame 10 may also include a backplane 15 and at least one connector 16. A cable group (not shown in the figure) is provided on the backplane 15, and each single board 13 is connected to the cable group. Signals are exchanged and transmitted between different single boards 13 through the cable group. The connector 16 is provided on the backplane 15, and one end of the connector 16 is electrically connected to the cable group, and the other end is electrically connected to the heat dissipation structure 11. A signal is sent to the connector 16 through the cable group, and then the connector 16 sends the signal to the heat dissipation structure 11, thereby adjusting the working power of the heat dissipation structure 11. In addition, the cable group is also electrically connected to an external power supply, and the external power supply supplies power to the single board 13 and the heat dissipation structure 11 through the cable group. Ensure that the single board 13 and the heat dissipation structure 11 can work normally.

[0073] On this basis, in some embodiments of the present application, the above-mentioned heat dissipation structure 11 may include a heat dissipation frame 111 as shown in Figure 5A. The heat dissipation frame 111 has a heat dissipation cavity 1111. A first vent 1112 connected to the heat dissipation cavity 1111 is provided on the heat dissipation frame 111. The first vent 1112 is connected to the heat dissipation gap 14 (as shown in Figure 3A), and the first vent 1112 is also connected to the heat dissipation cavity 1111. Therefore, heat exchange can be carried out between the first vent 1112, the heat dissipation gap 14 and the heat dissipation cavity 1111 to complete the heat dissipation of the frame 10.

[0074] Continuing with FIG5A , the heat dissipation frame 111 may include a first cavity wall 1113 and a second cavity wall 1114 that are arranged opposite to each other. The heat dissipation structure 11 may include at least one stopper 112 arranged in the heat dissipation cavity 1111, and the stopper 112 is arranged on the first cavity wall 1113. As shown in FIG5B , a first accommodating cavity 11111 is formed between a side surface of the stopper 112 (as shown in FIG5A ) facing away from the first cavity wall 1113 and the second cavity wall 1114. Because the stopper 112 is located in the heat dissipation cavity 1111, the first accommodating cavity 11111 is part of the heat dissipation cavity 1111. That is, the first accommodating cavity 11111 is also connected to the first vent 1112 (as shown in FIG5A ), and heat exchange can be performed between the first vent 1112, the heat dissipation gap 14 (as shown in FIG3A ), and the first accommodating cavity 11111. 5C , the limiting member 112 divides the heat dissipation cavity 1111 into a second accommodating cavity 11112 and a third accommodating cavity 11113 along the extension direction of the limiting member 112. Similarly, the second accommodating cavity 11112 and the third accommodating cavity 11113 are also part of the heat dissipation cavity 1111. Therefore, heat can be exchanged between the first accommodating cavity 11111 and the second accommodating cavity 11112 and the first vent 1112 and the heat dissipation gap 14.

[0075] On this basis, as shown in FIG3A or FIG3B , the heat dissipation architecture 11 may include at least one fan box 113, and the fan box 113 may be arranged in a heat dissipation cavity 1111 (as shown in FIG5A ). The fan box 113 may have an air outlet 1131 as shown in FIG6 , and the air outlet 1131 may face the first vent 1112 (as shown in FIG5A ). Exemplarily, the air outlet 1131 of the fan box 113 may be an air inlet. When the fan box 113 is working, air is inhaled toward the first vent 1112 through the air outlet 1131, and then the gas between the first vent 1112 and the heat dissipation gap 14 is caused to flow, thereby cooling the heat dissipation gap 14. Alternatively, for example, the air port 1131 of the fan box 113 may be an air outlet. When the fan box 113 is in operation, air is supplied to the first vent 1112 through the air port 1131, thereby causing air to flow between the first vent 1112 and the heat dissipation gap 14, thereby cooling the heat dissipation gap 14 and achieving a heat dissipation function.

[0076] In addition, as shown in Figure 3A or Figure 3B, the fan box 113 can be set in the first accommodating cavity 11111, the second accommodating cavity 11112, or the third accommodating cavity 11113. Alternatively, the fan box 113 can also be partially set in the second accommodating cavity 11112, and the other part can be set in the third accommodating cavity 11113. In this way, as shown in Figure 3A, in the early stage of the evolution of the frame 10, before the network is upgraded, the heat dissipation requirements required by the frame 10 are relatively low, and the heat dissipation architecture 11 can be allowed to stop heat dissipation for a longer period of time. In this case, in order to reduce costs, a fan box 113 can be set in the first accommodating cavity 11111. Because the first accommodating cavity 11111 is located between the limiter 112 and the second cavity wall 1114, that is, the limiter 112 will not hinder the installation of the fan box 113 in the first accommodating cavity 11111, the size of the fan box 113 can be larger, thereby ensuring the heat dissipation requirements at this time. When the fan box 113 fails or needs maintenance, the fan box 113 can also be taken out for repair or maintenance.

[0077] However, with the development of network equipment, the subracks are constantly evolving. After the network is gradually upgraded, the subrack business volume is large and the heat dissipation demand is high, and the time for the heat dissipation architecture to stop heat dissipation is short. At this time, if only one fan box is set, when the fan box is repaired or maintained, the time for the heat dissipation architecture to stop heat dissipation cannot meet the heat dissipation demand of the subrack. At this time, as shown in Figure 3B, the heat dissipation architecture 11 can be provided with at least two independent fan boxes 113 in the first accommodating cavity 11111 (as shown in Figure 5C) and the second accommodating cavity 11112 (as shown in Figure 5C). When one of the fan boxes 113 needs to be repaired or maintained, the other fan boxes 113 continue to work, ensuring that the heat dissipation architecture 11 will not completely lose its heat dissipation function to meet the higher heat dissipation demand. In addition, the subrack 10 can also adjust the power consumption of different fan boxes 113 separately in combination with the heat dissipation demand of the areas where different single chips are located, so as to ensure the heat dissipation demand while minimizing the overall power consumption.

[0078] In the related art, the fan box of the heat dissipation architecture is an integrated fan box. Through the integrated integrated structure, all cooling fans are integrated together, which is low-cost. However, when the integrated fan box fails or requires maintenance, it needs to be shut down. To ensure the normal operation of the subrack, the repair or maintenance time of the integrated fan box is limited, which is inconvenient and cannot meet the heat dissipation requirements of the subrack in the later stage of evolution. Moreover, this type of subrack cannot implement zone power consumption adjustment to match the heat dissipation requirements of different areas. Alternatively, in other related art, the heat dissipation architecture includes multiple separated cavities, each of which is equipped with a fan box. However, this approach uses multiple fan boxes, which is costly. Moreover, the multiple cavities are separated from each other, and fan boxes larger than one cavity cannot be installed in the heat dissipation architecture. As shown in Figure 5A, the limiter 112 of the heat dissipation architecture 11 provided in the present application does not hinder the placement of the fan box 113 (shown in Figure 3A) in the first accommodating cavity 11111, so the size of the fan box 113 can be larger. Furthermore, the heat dissipation architecture 11 provided in this application can adapt to the evolution of the subrack 10. When the subrack 10 has a low traffic volume and a low heat dissipation requirement, a larger fan box 113 is installed, ensuring heat dissipation capacity while reducing costs. When the subrack 10 has a high traffic volume and a high heat dissipation requirement, multiple fan boxes 113 are installed to ensure that the heat dissipation architecture 11 does not completely lose its heat dissipation function during repair or maintenance of the fan boxes 113. This achieves the goal of adapting to the evolution of the subrack, ensuring heat dissipation requirements before and after network upgrades, while also reducing costs.

[0079] Alternatively, for example, as shown in FIG3C , the first cavity wall 1113 faces the single board 13. A first vent 1112 is provided on the first cavity wall 1113. The first vent 1112 can be surrounded by the skeleton of the first cavity wall 1113. A second vent 1115 is provided on the second cavity wall 1114, and the second vent 1115 is connected to the outside atmosphere. The first vent 1112 faces the heat dissipation gap 14. The fan box 113 (as shown in FIG3A ) may include an air inlet and an air outlet. The air inlet of the fan box 113 faces the first vent 1112, and the air inlet of the fan box 113 faces the second vent 1115. When the fan box 113 is working, an airflow is generated from the air outlet to the second vent 1115. This in turn drives air intake into the air inlet, generating an airflow from the first vent 1112 to the air inlet. This drives the air in the heat dissipation gap 14 to flow toward the first vent 1112 , ultimately generating an airflow that flows from the heat dissipation gap 14 to the first vent 1112 , the air inlet, the air outlet, the second vent 1115 , and finally to the outside atmosphere, thereby dissipating heat from the frame 10 .

[0080] Alternatively, as shown in Figure 3D, the second cavity wall 1114 faces the single board 13. The first vent 1112 is connected to the outside atmosphere. The second vent 1115 faces the heat dissipation gap 14. The second vent 1115 can be surrounded by the skeleton of the second cavity wall 1114. The fan box 113 (as shown in Figure 3A or Figure 3B) may include an air inlet and an air outlet. The air inlet of the fan box 113 faces the second vent 1115, and the air inlet of the fan box 113 faces the first vent 1112. When the fan box 113 is working, an airflow is generated from the air outlet to the first vent 1112. This in turn drives the air intake of the air inlet, generating an airflow from the second vent 1115 to the air inlet. This drives the air in the heat dissipation gap 14 to flow toward the second vent 1115 , ultimately generating an airflow that flows from the heat dissipation gap 14 to the second vent 1115 , the air inlet, the air outlet, the first vent 1112 , and finally to the outside atmosphere, thereby dissipating heat from the frame 10 .

[0081] Continuing with FIG. 3C or FIG. 3D , the fan box 113 (as shown in FIG. 3A or FIG. 3B ) is electrically connected to the connector 16. When the fan box 113 is installed into the heat dissipation cavity 1111 along the extension direction of the stopper 112, the fan box 113 moves toward the connector 16 until one end of the connector 16 engages with the connection end of the fan box 113 and is electrically connected to the fan box 113, thereby ensuring power supply to the fan box 113.

[0082] Exemplarily, at least one fan (not shown) is provided in the fan box 113, and the fan is electrically connected to the connector 16. By supplying power to the fan, the fan is operated to dissipate heat.

[0083] The following embodiments are first described by taking an example where at least two fan boxes are arranged in the heat dissipation cavity.

[0084] In some embodiments of the present application, as shown in Figure 7, the at least one limiter 112 may include a first limiter a1. The first limiter a1 divides the heat dissipation cavity 1111 into a second accommodating cavity 11112 and a third accommodating cavity 11113 along the extension direction of the first limiter a1. As shown in Figure 8, the at least one fan box 113 (as shown in Figure 3B) may include a first fan box b1 and a second fan box b2. A first gap 114 is provided between the first fan box b1 and the second fan box b2. The first gap 114 can accommodate the first limiter a1, ensuring that the first limiter a1 is located between the first fan box b1 and the second fan box b2. The first fan box b1 is arranged in the second accommodating cavity 11112, and the side surface of the first fan box b1 facing the third accommodating cavity 11113 slides with the first limiter a1. At this time, the first limiter a1 can limit the first fan box b1 in the direction of the first fan box b1 toward the third accommodating chamber 11113, ensuring that the first fan box b1 slides along the first limiter a1, thereby ensuring that the first fan box b1 is installed in the desired position, and then aligned with and electrically connected to the corresponding connector 16 (as shown in Figure 3C). In addition, the second fan box b2 is arranged in the third accommodating chamber 11113, and the side surface of the second fan box b2 facing the second accommodating chamber 11112 slides with the first limiter a1. At this time, the first limiter a1 can also limit the second fan box b2 in the direction of the second fan box b2 toward the second accommodating chamber 11112, ensuring that the second fan box b2 also slides along the first limiter a1, thereby ensuring that the second fan box b2 is installed in the desired position, and then aligned with and electrically connected to the corresponding connector 16.

[0085] In other embodiments of the present application, as shown in Figure 9, the at least one limiting member 112 (as shown in Figure 5A) may further include a second limiting member a2. The second limiting member a2 is located in the third accommodating cavity 11113, and the second limiting member a2 divides the third accommodating cavity 11113 into a fourth accommodating cavity 111131 and a fifth accommodating cavity 111132 along the extension direction of the second limiting member a2. As shown in Figure 10, the second fan box b2 is located in the fourth accommodating cavity 111131, and the side surface of the second fan box b2 facing the fifth accommodating cavity 111132 slides with the second limiting member a2. At this time, the second fan box b2 is arranged behind the fourth accommodating cavity 111131, and the second limiting member a2 can also limit and guide the second fan box b2. The first limiting member a1 and the second limiting member a2 respectively limit and guide the two sides of the second fan box b2, further ensuring that the second fan box b2 can be aligned with and electrically connected to the corresponding connector 16 (as shown in FIG3C ) during installation. In addition, the above-mentioned at least one fan box 113 (as shown in FIG3B ) also includes a third fan box b3. The number of fan boxes 113 is further increased. When one fan box 113 is repaired or maintained, the number of the remaining fan boxes 113 that are still working is relatively large, thereby ensuring that when one fan box 113 is repaired or maintained, the heat dissipation of the other fan boxes 113 can meet the requirements of the frame 10. There is a second gap 115 between the second fan box b2 and the third fan box b3. The second gap 115 can accommodate the second limiting member a2, ensuring that the second limiting member a2 is located between the second fan box b2 and the third fan box b3. The third fan box b3 is located within the fifth accommodating cavity 111132. The side surface of the third fan box b3 facing the fourth accommodating cavity 111131 slidably engages with the second stopper a2. The second stopper a2 then limits and guides the third fan box b3, ensuring that the third fan box b3 slides along the second stopper a2 and is aligned with and electrically connected to the corresponding connector 16.

[0086] In some further embodiments of the present application, as shown in FIG5C , the at least one stopper 112 may further include a third stopper a3. The third stopper a3 is located within the fifth accommodating cavity 111132, and the third stopper a3 divides the fifth accommodating cavity 111132 into a sixth accommodating cavity 111321 and a seventh accommodating cavity 111322 along the extension direction of the third stopper a3. As shown in FIG11 , the third fan box b3 is located within the sixth accommodating cavity 111321, and a side surface of the third fan box b3 facing the sixth accommodating cavity 111321 slides in engagement with the third stopper a3. The third stopper a3 further limits the position of the third fan box b3, further ensuring that the third fan box b3 can be aligned with and electrically connected to the corresponding connector 16 (as shown in FIG3C ). In addition, the at least one fan box 113 may further include a fourth fan box b4. This further increases the total number of fan boxes 113, thereby ensuring the heat dissipation efficiency of the heat dissipation architecture 11. The fourth fan box b4 is located within the seventh accommodating cavity 111322. The side surface of the fourth fan box b4 facing the sixth accommodating cavity 111321 slidably engages with the third stopper a3. The third stopper a3 then limits and guides the fourth fan box b4, ensuring that the fourth fan box b4 slides along the third stopper a3 and is aligned with and electrically connected to the corresponding connector 16.

[0087] Of course, the embodiments shown in Figures 8, 10 and 11 are examples in which the number of limiting members is 1, 2, and 3, and the number of fan boxes is 2, 3, and 4, respectively. In other embodiments of the present application, the number of limiting members and fan boxes may also be other numbers. For example, the number of limiting members may be 4, 5, 6, etc., and the number of fan boxes may be 5, 6, 7, etc.

[0088] In some embodiments of the present application, based on the first stopper a1 as shown in FIG. 7 dividing the heat dissipation cavity 1111 into a second accommodating cavity 11112 and a third accommodating cavity 11113, as shown in FIG. 12 , the at least one fan box 113 may include a first fan box b1 and a second fan box b2. The second fan box b2 is disposed within the third accommodating cavity 11113. A side surface of the second fan box b2 facing the second accommodating cavity 11112 slidably engages with the stopper 112. The first stopper a1 can limit and guide the second fan box b2, ensuring that the first fan box b1 can be aligned with and electrically connected to the corresponding connector 16 (as shown in FIG. 3C ). The first fan box b1 is disposed within the second accommodating cavity 11112. A first slide groove b11 is defined on the side of the first fan box b1 facing the first cavity wall 1113. The first stopper a1 is located within the first slide groove b11 and engages with the first slide groove b11. At this time, the first limiting member a1 can still limit and guide the first fan box b1, ensuring that the first fan box b1 slides along the first limiting member a1, thereby ensuring that the first fan box b1 can be aligned with the corresponding connector 16 and electrically connected. In addition, the first slide groove b11 can accommodate the first limiting member a1, so that there is no need to leave a gap between the first fan box b1 and the second fan box b2 that is sufficient to accommodate the first limiting member a1. In other words, the gap between the surface of the first fan box b1 facing the second fan box b2 and the surface of the second fan box b2 facing the first fan box b1 can be smaller or even non-existent. This makes the space occupied by the first fan box b1 and the second fan box b2 in the heat dissipation cavity 1111 larger, thereby improving the space utilization rate in the heat dissipation cavity 1111.

[0089] Furthermore, as shown in Figure 12, the surface of the first fan box b1 facing the second fan box b2 abuts the surface of the second fan box b2 facing the first fan box b1. At this point, there is no gap between the first fan box b1 and the second fan box b2, except for the first slide slot b11 for accommodating the first stopper a1. This further increases the space occupied by the first fan box b1 and the second fan box b2 within the heat dissipation cavity 1111, thereby further improving the space utilization within the heat dissipation cavity 1111.

[0090] In other embodiments of the present application, based on the second stopper a2 dividing the third accommodating chamber 11113 into a fourth accommodating chamber 111131 and a fifth accommodating chamber 111132 as shown in Figure 9 , as shown in Figure 13 , the at least one fan box 113 may further include a third fan box b3. This increases the number of fan boxes, ensuring that when one fan box is repaired or maintained, the heat dissipation requirements of the other fan boxes can be met. The second fan box b2 is located within the fourth accommodating chamber 111131, and the third fan box b3 is located within the fifth accommodating chamber 111132. A sixth slot b22 is defined on the side of the second fan box b2 facing the first cavity wall 1113. The second stopper a2 is located within and engages with the sixth slot b22 to ensure that the second fan box b2 can align with and electrically connect to the corresponding connector 16 (shown in Figure 3C ). As in the above embodiment, this improves space utilization within the heat dissipation chamber 1111. The third fan box b3 is located in the fifth accommodating cavity 111132, and a side surface of the third fan box b3 facing the fourth accommodating cavity 111131 is slidably engaged with the second stopper a2 to ensure that the third fan box b3 can be aligned with the corresponding connector 16 and electrically connected.

[0091] Of course, the embodiments shown in Figures 12 and 13 are examples in which the number of limiting members is 1 and 2, and the number of fan boxes is 2 and 3. In other embodiments of the present application, the number of limiting members and fan boxes may also be other numbers. For example, the number of limiting members may be 3, 4, 5, 6, etc., and the number of fan boxes may be 4, 5, 6, 7, etc.

[0092] In some embodiments of the present application, based on the first limiting member a1 as shown in FIG7 , which divides the heat dissipation cavity 1111 into a second accommodating cavity 11112 and a third accommodating cavity 11113, as shown in FIG14 , a first fan box b1 is disposed in the second accommodating cavity 11112, and a first recessed portion b12 is provided on the side of the first fan box b1 facing the first cavity wall 1113. A second fan box b2 is disposed in the third accommodating cavity 11113, and a second recessed portion b21 is provided on the side of the second fan box b2 facing the first cavity wall 1113. The first recessed portion b12 and the second recessed portion b21 together form a second slide groove 116. The first limiting member a1 is located in the second slide groove 116 and cooperates with the second slide groove 116. The first stopper a1 cooperates with the second slide 116 to limit and guide the sliding movement of the first fan box b1 and the second fan box b2, ensuring that both the first fan box b1 and the second fan box b2 can be aligned with and electrically connected to the corresponding connector 16 (as shown in FIG3C ). Simultaneously, similar to the embodiment shown in FIG10 , the second slide 116 can accommodate the first stopper a1, and the gap between the surface of the first fan box b1 facing the second fan box b2 and the surface of the second fan box b2 facing the first fan box b1 can be small or even non-existent. This improves the space utilization within the heat dissipation cavity 1111.

[0093] In other embodiments of the present application, based on the second stopper a2 dividing the third accommodating chamber 11113 into a fourth accommodating chamber 111131 and a fifth accommodating chamber 111132 as shown in FIG9 , as shown in FIG15 , the at least one fan box 113 may further include a second fan box b2 and a third fan box b3. In this case, the number of fan boxes 113 is increased, thereby ensuring that when one fan box 113 is repaired or maintained, the heat dissipation requirements of the other fan boxes 113 can be met. The second fan box b2 is disposed within the fourth accommodating chamber 111131 and has a third recessed portion b23 on the side of the second fan box b2 facing the first chamber wall 1113. The third fan box b3 is disposed within the fifth accommodating chamber 111132 and has a fourth recessed portion b31 on the side of the third fan box b3 facing the first chamber wall 1113. The third recessed portion b23 and the fourth recessed portion b31 together form a seventh slide slot 117. The second stopper a2 is located in the seventh slide groove 117 and engages with the seventh slide groove 117. At this time, similar to the embodiment shown in FIG14 , the second stopper a2 engages with the seventh slide groove 117, thereby limiting and guiding the sliding of the second fan box b2 and the third fan box b3, thereby ensuring that the second fan box b2 and the third fan box b3 can be aligned with and electrically connected to the corresponding connector 16 (as shown in FIG3C ).

[0094] Of course, the embodiments shown in Figures 14 and 15 are examples in which the number of limiting members is 1 and 2, and the number of fan boxes is 2 and 3. In other embodiments of the present application, the number of limiting members and fan boxes may also be other numbers. For example, the number of limiting members may be 3, 4, 5, 6, etc., and the number of fan boxes may be 4, 5, 6, 7, etc.

[0095] In some embodiments of the present application, as shown in FIG9 , the first stopper a1 divides the heat dissipation cavity 1111 into a second accommodating cavity 11112 and a third accommodating cavity 11113, and the second stopper a2 divides the third accommodating cavity 11113 into a fourth accommodating cavity 111131 and a fifth accommodating cavity 111132. As shown in FIG16 , the at least one fan box 113 may include a first fan box b1 and a second fan box b2. The first fan box b1 is disposed within the second accommodating cavity 11112 and the fourth accommodating cavity 111131, located between the first stopper a1 and the second cavity wall 1114. The first fan box b1 slidably engages with the surface of the first stopper a1 toward the second cavity wall 1114. At this point, the first fan box b1 can slide along the first stopper a1 toward the surface of the second cavity wall 1114, thereby enabling installation and removal of the first fan box b1. Furthermore, the second fan box b2 is disposed within the fourth accommodating chamber 111131 and the fifth accommodating chamber 111132, located between the second stopper a2 and the second cavity wall 1114. The second fan box b2 slidably engages with the surface of the second stopper a2 facing the second cavity wall 1114. In this manner, the second fan box b2 can slide along the second stopper a2 toward the surface of the second cavity wall 1114, thereby enabling installation and removal of the second fan box b2. This allows two fan boxes 113 to be installed within the heat dissipation cavity 1111.

[0096] Continuing with FIG16 , a third slide groove b13 is provided on the side of the first fan box b1 facing the first cavity wall 1113. The first limiting member a1 is located within the third slide groove b13 and cooperates with the third slide groove b13. At this point, the first limiting member a1 can limit the first fan box b1 in a direction perpendicular to the extension direction of the first limiting member a1 and parallel to the first cavity wall 1113, thereby allowing the first limiting member a1 to guide the sliding of the first fan box b1. Furthermore, a fourth slide groove b24 is provided on the side of the second fan box b2 facing the first cavity wall 1113. The second limiting member a2 is located within the fourth slide groove b24 and cooperates with the fourth slide groove b24. At this point, the second limiting member a2 can also limit the second fan box b2, thereby allowing the second limiting member a2 to guide the sliding of the second fan box b2. This ensures that the first fan box b1 and the second fan box b2 can be aligned with and electrically connected to the corresponding connector 16 (as shown in FIG. 3C ).

[0097] In some embodiments of the present application, based on the third limiting member a3 as shown in FIG5C dividing the fifth accommodating chamber 111132 into a sixth accommodating chamber 111321 and a seventh accommodating chamber 111322, as shown in FIG17 , the at least one fan box 113 may further include a third fan box b3. The third fan box b3 is disposed within the sixth accommodating chamber 111321 and the seventh accommodating chamber 111322. Furthermore, an eighth slide groove b32 is provided on the side of the third fan box b3 facing the first cavity wall 1113, and the third limiting member a3 is located in the eighth slide groove b32. Similar to the embodiment shown in FIG16 , the third limiting member a3 can also limit the third fan box b3, thereby allowing the third limiting member a3 to guide the sliding movement of the third fan box b3. This ensures that each of the third fan boxes b3 can be aligned with and electrically connected to the corresponding connector 16 (as shown in FIG3C ).

[0098] Of course, the embodiments shown in Figures 16 and 17 are illustrative examples in which the number of limiting members is 2 and 3, and the number of fan boxes is 2 and 3. In other embodiments of the present application, the number of limiting members and fan boxes may also be other numbers. For example, the number of limiting members may be 4, 5, 6, 7, etc., and the number of fan boxes may also be 4, 5, 6, 7, etc.

[0099] The following embodiments are described by taking an example of disposing a fan box in the heat dissipation cavity.

[0100] In some embodiments of the present application, as shown in FIG18 , a fan box 113 can be installed in a first accommodating cavity 11111 (as shown in FIG5B ). In the early stages of subrack evolution, before network upgrades, when subrack traffic is low, only one fan box 113 can be installed in the heat dissipation cavity 1111 (as shown in FIG5A ), thereby meeting the low heat dissipation requirements before network upgrades and reducing costs.

[0101] In other embodiments of the present application, as shown in Figure 19, the fan box 113 may include a first portion 1132 and a second portion 1133. The first portion 1132 is disposed in the first accommodating chamber 11111 (as shown in Figure 5B). The second portion 1133 is provided with a fifth slide groove 11331 on the side facing the first cavity wall 1113, and the stopper 112 is located in the fifth slide groove 11331 and cooperates with the fifth slide groove 11331. At this time, the second portion 1133 of the fan box 113 is located between the side surface of the stopper 112 facing away from the first cavity wall 1113 and the first cavity wall 1113. Compared to arranging the entire fan box 113 in the first accommodating chamber 11111, the fan box 113 now occupies a larger space in the heat dissipation cavity 1111 (as shown in Figure 5A), thereby improving the space utilization rate in the heat dissipation cavity 1111.

[0102] In some further embodiments of the present application, as shown in FIG20 , the fan box 113 may include a first fan assembly 1134 and a second fan assembly 1135, wherein the first fan assembly 1134 and the second fan assembly 1135 are connected on a side facing away from the heat dissipation cavity 1111 (as shown in FIG5A ). A third gap 1136 is provided between the first fan assembly 1134 and the second fan assembly 1135. The stopper 112 (as shown in FIG5A ) is located within the third gap 1136. At this time, the stopper 112 is located within the third gap 1136 between the first fan assembly 1134 and the second fan assembly 1135, and the stopper 112 does not hinder the first fan assembly 1134 and the second fan assembly 1135 from being installed in the heat dissipation cavity 1111. This ensures that the fan box 113 can be installed in the heat dissipation cavity 1111 in the early stages of the frame evolution.

[0103] Alternatively, in some embodiments of the present application, the above-mentioned heat dissipation architecture 1111 may also include a heat dissipation frame 111 and at least one limiting member 112 as shown in Figure 21. The heat dissipation frame 111 has a heat dissipation cavity 1111. The heat dissipation frame 111 includes a first cavity wall 1113 and a second cavity wall 1114 that are relatively arranged. The limiting member 112 is located in the heat dissipation cavity 1111, and the first end 1121 of the limiting member 112 is detachably connected to the first cavity wall 1113. In the early stage of the evolution of the plug-in frame, before the network is upgraded, the heat dissipation demand is relatively low. At this time, after the limiting member 112 is detached from the first cavity wall 1113, a larger fan box 113 can be installed in the heat dissipation cavity 1111. As the subrack 10 evolves, and after a network upgrade, when heat dissipation requirements increase, the retaining member 112 can be installed on the first cavity wall 1113. The retaining member 112 can divide the heat dissipation cavity 1111 into at least two independent cavities, each of which can accommodate at least two independent fan boxes 113. This ensures that the fan boxes 113 can be repaired or maintained one by one, ensuring that at least one fan box 113 is in working order and meets heat dissipation requirements. This ensures that heat dissipation requirements can be met before and after network upgrades while reducing costs.

[0104] For example, as shown in FIG. 21 , the second end 1122 of the stopper 112 may abut against the second cavity wall 1114. Alternatively, a gap may exist between the second end 1122 of the stopper 112 and the second cavity wall 1114. Alternatively, the second end 1122 of the stopper 112 and the second cavity wall 1114 may be detachably connected to ensure that the stopper 112 can be removed from the heat dissipation frame 111.

[0105] In other embodiments of the present application, as shown in Figure 21, the first end 1121 of the limiting member 112 is fixedly connected to the first cavity wall 1113, and the second end 1122 of the limiting member 112 is connected to the second cavity wall 1114. At this time, the fixing of the limiting member 112 is relatively firm, ensuring the stability of the connection between the limiting member 112 and the heat dissipation frame 111. On this basis, as shown in Figure 20, the fan box 113 may include a first fan assembly 1134 and a second fan assembly 1135, and the first fan assembly 1134 and the second fan assembly 1135 are connected on the side facing away from the heat dissipation cavity 1111. A third gap 1136 is provided between the first fan assembly 1134 and the second fan assembly 1135. The limiting member 112 is located in the third gap 1136, and the limiting member 112 will not hinder the first fan assembly 1134 and the second fan assembly 1135 from being installed in the heat dissipation cavity 1111. This ensures that during the early stages of the evolution of the subrack 10, the fan box 113 can be installed in the heat dissipation cavity 1111 to meet the low heat dissipation requirements before the network upgrade. After the network upgrade, two independent fan boxes 113 can be replaced and installed in the second and third accommodating cavities 11112 and 11113, respectively. This ensures that repairs or maintenance of the fan boxes 113 can be performed one by one, ensuring that at least one fan box 113 is in working order and meets the heat dissipation requirements. This achieves the goal of ensuring heat dissipation requirements before and after the network upgrade while reducing costs.

[0106] The above is only a specific embodiment of the present application, but the scope of protection of this application is not limited to this. Any changes or substitutions within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A heat dissipation architecture, characterized in that: include: The heat dissipation frame has a heat dissipation cavity; the heat dissipation frame comprises a first cavity wall and a second cavity wall arranged opposite to each other; the heat dissipation frame is provided with a first vent connected to the heat dissipation cavity; At least one limiting member is located in the heat dissipation cavity; and the limiting member is arranged on the first cavity wall; A first accommodating cavity is formed between a side surface of the limiting member facing away from the first cavity wall and the second cavity wall; The limiting member divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along the extension direction of the limiting member; At least one fan box is located in the heat dissipation cavity, and the air outlet of the fan box faces the first vent; the fan box is slidably matched with the limiting member along the extension direction of the limiting member.

2. The heat dissipation structure according to claim 1, characterized in that: The at least one stopper comprises: a first limiting member, wherein the first limiting member divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along an extension direction of the first limiting member; The at least one fan box comprises: A first fan box is disposed in the second accommodating cavity, and a side surface of the first fan box facing the third accommodating cavity is slidably matched with the first limiting member; A second fan box is disposed in the third accommodating cavity, and a side surface of the second fan box facing the second accommodating cavity is slidably matched with the first limiting member; There is a first gap between the first fan box and the second fan box, and the first limiting member is located in the first gap.

3. The heat dissipation structure according to claim 2, characterized in that: The at least one stopper also includes: The second limiter is located in the third accommodating cavity, and the second limiter divides the third accommodating cavity into a fourth accommodating cavity and a fifth accommodating cavity along the extension direction of the second limiter; the second fan box is located in the fourth accommodating cavity, and a side surface of the second fan box facing the fifth accommodating cavity is slidably matched with the second limiter; The at least one fan box further comprises: a third fan box, the third fan box being located in the fifth accommodating chamber, and a side surface of the third fan box facing the fourth accommodating chamber being slidably matched with the second limiting member; There is a second gap between the second fan box and the third fan box, and the second limiting member is located in the second gap.

4. The heat dissipation structure according to claim 1, characterized in that: The at least one stopper comprises: a first limiting member, wherein the first limiting member divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along an extension direction of the first limiting member; The at least one fan box comprises: A first fan box is disposed in the second accommodating cavity, and a first slide groove is provided on a side of the first fan box facing the first cavity wall; the first limiting member is located in the first slide groove and cooperates with the first slide groove; The second fan box is arranged in the third accommodating cavity, and a side surface of the second fan box facing the second accommodating cavity is slidably matched with the limiting member.

5. The heat dissipation structure according to claim 4, characterized in that: A surface of the first fan box facing the second fan box abuts against a surface of the second fan box facing the first fan box.

6. The heat dissipation structure according to claim 1, characterized in that: The at least one stopper comprises: a first limiting member, wherein the first limiting member divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along an extension direction of the first limiting member; The at least one fan box comprises: A first fan box is disposed in the second accommodating cavity, and a first recess is disposed on a side of the first fan box facing the first cavity wall; The second fan box is arranged in the third accommodating cavity, and a second recessed portion is provided on the side of the second fan box facing the first cavity wall; the first recessed portion and the second recessed portion together form a second slide groove; the first limiting member is located in the second slide groove and cooperates with the second slide groove.

7. The heat dissipation structure according to claim 1, characterized in that: The at least one stopper comprises: The first limiting member divides the heat dissipation cavity into a second accommodating cavity and a first accommodating cavity along the extension direction of the first limiting member. Three accommodating chambers; A second limiting member is located in the third accommodating cavity, and the second limiting member divides the third accommodating cavity into a fourth accommodating cavity and a fifth accommodating cavity along an extension direction of the second limiting member; The at least one fan box comprises: A first fan box is disposed in the second accommodating cavity and the fourth accommodating cavity, and is located between the first limiting member and the second cavity wall, and the first fan box and the first limiting member are slidably matched toward the surface of the second cavity wall; The second fan box is arranged in the fourth accommodating cavity and the fifth accommodating cavity, and is located between the second limiting member and the second cavity wall. The second fan box and the second limiting member slide together toward the surface of the second cavity wall.

8. The heat dissipation structure according to claim 7, characterized in that: A third slide groove is provided on a side of the first fan box facing the first cavity wall, and the first limiting member is located in the third slide groove and cooperates with the third slide groove; A fourth slide groove is provided on a side of the second fan box facing the first cavity wall, and the second limiting member is located in the fourth slide groove and cooperates with the fourth slide groove.

9. The heat dissipation structure according to claim 1, characterized in that: The fan box is arranged in the first accommodating cavity.

10. The heat dissipation structure according to claim 1, characterized in that: The fan box comprises: A first part is disposed in the first accommodating cavity; The second part is provided with a fifth slide groove on one side facing the first cavity wall, and the limiting member is located in the fifth slide groove and cooperates with the fifth slide groove.

11. The heat dissipation structure according to claim 1, characterized in that: The fan box comprises: a first fan assembly; The second fan assembly, the first fan assembly and the second fan assembly are connected at a side away from the heat dissipation cavity, and a third gap is provided between the first fan assembly and the second fan assembly; the limiting member is located in the third gap.

12. A heat dissipation architecture, characterized in that: include: The heat dissipation frame has a heat dissipation cavity; the heat dissipation frame comprises a first cavity wall and a second cavity wall arranged opposite to each other; the heat dissipation frame is provided with a first vent connected to the heat dissipation cavity; At least one limiting member is located in the heat dissipation cavity; and the limiting member is arranged on the first cavity wall; A first accommodating cavity is formed between a side surface of the limiting member facing away from the first cavity wall and the second cavity wall; the limiting member divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along the extension direction of the limiting member.

13. A heat dissipation architecture, characterized in that: include: The heat dissipation frame has a heat dissipation cavity; the heat dissipation frame comprises a first cavity wall and a second cavity wall arranged opposite to each other; the heat dissipation frame is provided with a first vent connected to the heat dissipation cavity; At least one limiting member is located in the heat dissipation cavity, a first end of the limiting member is detachably connected to the first cavity wall, and the limiting member divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along an extension direction of the limiting member.

14. A heat dissipation architecture, characterized in that: include: The heat dissipation frame has a heat dissipation cavity; the heat dissipation frame comprises a first cavity wall and a second cavity wall arranged opposite to each other; the heat dissipation frame is provided with a first vent connected to the heat dissipation cavity; At least one limiting member is located in the heat dissipation cavity, the limiting member is fixedly connected to the first cavity wall, the second end of the limiting member is connected to the second cavity wall, and the limiting member divides the heat dissipation cavity into a second accommodating cavity and a third accommodating cavity along the extension direction of the limiting member; A fan box is located in the heat dissipation cavity, and the fan box includes: a first fan assembly; The second fan assembly, the first fan assembly and the second fan assembly are connected at a side away from the heat dissipation cavity, and a third gap is provided between the first fan assembly and the second fan assembly; the limiting member is located in the third gap.

15. A plug-in frame, characterized in that: The heat dissipation architecture according to any one of claims 1 to 14, wherein the plug-in frame further comprises: A frame, wherein the heat dissipation structure is arranged in the frame; A plurality of single boards are arranged in the frame, and the plurality of single boards are located on the same side of the heat dissipation structure, and heat dissipation gaps are provided between adjacent single boards, and the heat dissipation gaps are communicated with the first vent.

16. A network device, characterized in that: Comprising one or more subracks as claimed in claim 15.

17. A communication system, characterized in that: Including the network device as described in claim 16, the communication system also includes a first access device, and the first access device is connected to the network device.

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