Rear-plug air-cooled case based on cableless IMA architecture

Abstract

The utility model relates to a rear-plug air-cooled cabinet, in particular to a rear-plug air-cooled cabinet based on a cableless IMA framework, which comprises a cabinet body, a function module and a rigid-flexible board assembly are detachably arranged in the cabinet body, the rigid-flexible board assembly comprises a flexible board, a rigid board is arranged at one end of the flexible board, a module connector is arranged on the rigid board, and the module connector is connected with the flexible board. A case connector is arranged on the case body, and the other end of the flexible board is connected with the case connector. The case is based on a cableless IMA architecture, a user can add or delete each module in real time according to function requirements, the configurability of the case is enhanced, and the expandability is better; according to the case, the rigid-flexible board assemblies are used for replacing traditional cables, layer-by-layer cascading can be achieved, the lightweight level of the case is improved, and interference among different signals is reduced; and meanwhile, the wiring path of the flexible board can be uniformly planned, so that the space utilization rate is further improved, and the product tends to be miniaturized.

Description

Technical Field

[0001] This utility model relates to a rear-plug-in air-cooled chassis, specifically a rear-plug-in air-cooled chassis based on a cableless IMA architecture. Background Technology

[0002] Conventional rear-hook air-cooled chassis typically utilize S7 frame connectors and, with the aid of pre-installed guide mechanisms in the rack (or equipment rack), enable blind-plugging between the chassis and signal adapters on the rack (or equipment rack). Simultaneously, forced air cooling is implemented based on the chassis's power consumption and external environmental conditions, ultimately achieving centralized signal transmission and interconnection between the chassis and other systems. This effectively avoids the tangled mess of cables caused by traditional chassis that rely on rear or front-end electrical interfaces for cable routing, routing, and bundling. Furthermore, these rear-hook air-cooled chassis can utilize Class B locking devices for quick and easy insertion and removal, mitigating issues associated with traditional chassis such as operational difficulties, low reliability, poor security, insufficient space utilization, and aesthetic unappealing designs.

[0003] With the increasing level of industrial intelligence, the demand for signal processing and data transmission is growing. Rear-switch air-cooled chassis are becoming increasingly complex, with more and more internal components. These components, often interspersed throughout the chassis, hinder the rapid location, disassembly, replacement, and maintenance of faulty components, failing to meet users' demands for timely repair. Furthermore, conventional rear-switch air-cooled chassis often have a relatively simple form factor, fixed after design and production. Users cannot freely customize the chassis configuration to meet their specific needs. When some functions are no longer required or new functions need to be added, the chassis must be redesigned, limiting its configurability and scalability, thus restricting its promotion and application. Additionally, conventional rear-switch air-cooled chassis often use traditional cables for internal connections, resulting in a large number of cables, significant space occupation, and strong electromagnetic interference, failing to meet the requirements for miniaturization, lightweight design, high reliability, and high security. Utility Model Content

[0004] To address the technical problems of rear-swappable chassis being difficult to repair, having poor configurability and scalability, and being bulky, this utility model provides a rear-swappable air-cooled chassis based on a cableless IMA architecture.

[0005] The purpose of this utility model is achieved through the following technical solution. According to this utility model, a rear-pluggable air-cooled chassis based on a cableless IMA architecture includes a chassis body. Functional modules and a rigid-flex board assembly are detachably installed inside the chassis body. The rigid-flex board assembly includes a flexible board, with a rigid board at one end of the flexible board. A module connector for plugging into the corresponding functional module is provided on the rigid board. A chassis connector for interconnecting with a signal adapter device outside the chassis body is provided on the chassis body. The other end of the flexible board is connected to the chassis connector.

[0006] Furthermore, the box body is provided with a back plate that divides the internal cavity of the box body into a module mounting cavity and a rigid-flex plate mounting cavity. Functional modules are inserted into the module mounting cavity, rigid-flex plate assemblies are installed in the rigid-flex plate mounting cavity, and rigid plates are set on the back plate.

[0007] Furthermore, the housing is provided with a guide mechanism for guiding the functional modules to be inserted into the housing, and the guide mechanism guides the functional modules to be inserted into the corresponding module connectors.

[0008] Furthermore, the housing is provided with a module locking device for locking the functional modules inside the housing.

[0009] Furthermore, the enclosure is provided with guide pins or guide pin holes. When the enclosure is interconnected with the signal adapter, the guide pins or guide pin holes are used to guide the insertion with the guide mechanism on the cabinet or equipment rack.

[0010] Furthermore, the enclosure is equipped with a enclosure locker for locking and securing the enclosure to the cabinet or equipment rack when the enclosure is interconnected with the signal adapter.

[0011] Furthermore, a fan assembly and ventilation holes are provided on the enclosure.

[0012] Furthermore, the fan assembly is disposed on the bottom side of the module mounting cavity, and a guide mechanism is provided between the fan assembly and the functional module. The guide mechanism includes a guide rail that slides with the bottom of the functional module. A top ventilation hole is provided on the housing wall on the other side of the module mounting cavity. The top ventilation hole is an elongated hole, and the length direction of the elongated hole is the insertion and removal direction of the functional module. The top ventilation hole is located above the gap between two adjacent guide rails.

[0013] Furthermore, a ventilation plate is provided on the inner side of the bottom wall of the enclosure. The ventilation plate is fixed above the fan assembly. The ventilation plate has bottom ventilation holes. A guide rail is provided on the upper surface of the ventilation plate. The bottom ventilation holes are elongated holes. The length direction of the elongated holes is the insertion and removal direction of the functional modules. The guide rail is located between two adjacent bottom ventilation holes.

[0014] Furthermore, a maintenance port is provided on the housing, and a maintenance port cover is provided on the maintenance port; the rigid-flex plate assembly is located in the rigid-flex plate mounting cavity inside the housing, and the maintenance port is connected to the rigid-flex plate mounting cavity.

[0015] Compared with the prior art, the advantages of this utility model are:

[0016] This chassis is based on a cableless IMA architecture, breaking down the complex and component-intensive conventional rear-plug-in air-cooled chassis into standard modular units that can perform specific functions. These standard modular units can include power modules, network switching modules, remote / near-end control modules, PON modules, relay modules, and other functional modules. Various types of modules are installed in the chassis via plug-in assembly as needed, enabling field-replaceable LRMP modules. In practical applications, users can add or remove modules in real time according to functional requirements, enhancing the chassis's configurability and scalability, facilitating widespread application. When a module fails, the various modules arranged within the chassis facilitate rapid location, disassembly, replacement, and maintenance of the faulty module, meeting users' requirements for timely repair.

[0017] This chassis utilizes rigid-flex PCBs instead of traditional cables. Based on signal type and transmission requirements, the rigid and flexible boards are stacked and arranged to achieve corresponding signal transmission, resulting in higher anti-interference capabilities. After the required modules are installed inside the chassis, they can be cascaded with each other and with other systems via LRMP connectors, rigid boards, flexible boards, and S7 connectors. This improves the chassis's lightweight design, reduces interference between different signals, and enhances overall reliability and security. Furthermore, the flexible board wiring paths can be uniformly planned based on the reserved space inside the chassis, further improving space utilization and making the product more compact.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a first embodiment of a rear-plug-in air-cooled chassis based on a cableless IMA architecture according to this utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram from another perspective of an embodiment of the present invention, which is a rear-plug-in air-cooled chassis based on a cableless IMA architecture.

[0021] Figure 3 for Figure 1 The illustrated embodiment is a three-dimensional schematic diagram after removing the maintenance port cover and LRMP module;

[0022] Figure 4 for Figure 2 A three-dimensional schematic diagram of the rigid-flexible plate assembly in the illustrated embodiment;

[0023] Figure 5 for Figure 4 A three-dimensional schematic diagram of the rigid-flexible plate assembly from another perspective;

[0024] Figure 6 for Figure 1 An exploded view of the embodiment shown.

[0025] Figure label:

[0026] 1-Box,

[0027] 101-Installation port,

[0028] 102 - Module mounting cavity

[0029] 103-Rigid-flexible plate mounting cavity,

[0030] 104-Mounting Opening II,

[0031] 105 - Fan mounting hole

[0032] 106-Front panel,

[0033] 107-Back panel,

[0034] 108-Left board,

[0035] 109-Right board,

[0036] 110-Top plate,

[0037] 111-Base Plate

[0038] 112 - Top ventilation hole,

[0039] 113 - Maintenance Port

[0040] 2- Rigid-Flexible Sheet Assembly,

[0041] 201-LRMP connector,

[0042] 202-S7 connector,

[0043] 203-Flexible board,

[0044] 204 rigid sheet,

[0045] 3-Metal backplate,

[0046] 301-Mounting Opening I,

[0047] 4- Guiding institutions,

[0048] 401-guide rail,

[0049] 5-Fan assembly,

[0050] 6-A type locking device,

[0051] 7-B type locking device,

[0052] 8-Maintenance port cover,

[0053] 9-Guide pin hole structure,

[0054] 10-LRMP module,

[0055] 11-Ventilation panel,

[0056] 1101 - Bottom ventilation hole. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0058] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0059] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0060] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0061] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0062] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0063] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0064] The following detailed description, in conjunction with embodiments, further illustrates the features and performance of a rear-mounted, air-cooled chassis suitable for a cableless IMA architecture.

[0065] This utility model discloses an embodiment of a rear-pluggable air-cooled chassis based on a cableless IMA architecture, as follows: Figures 1 to 6 As shown, hereinafter referred to as the chassis. The chassis includes a chassis body 1, a rigid-flex PCB assembly 2, a metal backplate 3, a guide mechanism 4, a fan assembly 5, a Class A locking device 6, a Class B locking device 7, a maintenance port cover 8, a guide pin hole structure 9, and an LRMP module 10.

[0066] The housing 1 is generally rectangular. In this embodiment, the housing 1 is detachably assembled from a front panel 106, a rear panel 107, a left panel 108, a right panel 109, a top panel 110, and a bottom panel 111. The front panel 106 has an insertion port 101 for inserting the LRMP module 10. The internal cavity of the housing 1 is divided into two parts: a module mounting cavity 102 and a rigid-flex plate mounting cavity 103. After the LRMP module 10 is inserted into the housing 1 through the insertion port 101, it is located in the module mounting cavity 102. The rigid-flex plate mounting cavity 103 serves as the installation space for accommodating the rigid-flex plate assembly 2. The module mounting cavity 102 and the rigid-flex plate mounting cavity 103 are separated by a metal back plate 3 inside the housing 1. In other embodiments, the metal back plate 3 can be replaced with a back plate of other materials.

[0067] As a functional module, the LRMP module 10 integrates internal components. The components within the same LRMP module 10 can perform one function or multiple functions that are commonly used together. When using this chassis, the user can insert the relevant LRMP module 10 into the chassis 1 according to the function required.

[0068] The rigid-flex PCB assembly 2 includes an LRMP connector 201, an S7 connector 202, a flexible board 203, and a rigid board 204. The flexible board 203 is connected to the rigid board 204 and the S7 connector 202 at both ends. The rigid board 204 is equipped with the LRMP connector 201, which serves as a module connector for mating with the corresponding LRMP module 10. The S7 connector serves as a chassis connector for mating with signal adapters on a cabinet (or equipment rack). The flexible board 203 and the rigid board 204 are stacked and arranged according to the signal type and transmission requirements to achieve the corresponding signal transmission.

[0069] The rigid-flex PCB assembly 2 is installed in the rigid-flex PCB mounting cavity 103. The rigid plate 204 and the LRMP connector 201 are installed on the metal back plate 3. The metal back plate 3 has a reserved mounting opening I 301 for the LRMP connector 201. The LRMP connector 201 is installed in the mounting opening I 301. The rigid plate 204 is fixed on the metal back plate 3. When the LRMP module 10 is inserted into the module mounting cavity 102, the connector at the rear end of the LRMP module 10 is inserted with the corresponding LRMP connector 201, which can realize module-level insertion and removal. The rear plate 107 of the enclosure 1 has a reserved mounting opening II 104 for the S7 connector 202. The S7 connector 202 is installed and fixed in the mounting opening II 104. The entire enclosure can be inserted and removed at the single-unit level through the S7 connector 202. By installing opening I 301 and opening II 104, the corresponding connectors (including LRMP connector 201 and S7 connector 202) on the rigid-flex board assembly 2 can be installed normally, thereby installing the rigid-flex board assembly 2 in the rigid-flex board mounting cavity 103.

[0070] In this embodiment, multiple LRMP connectors 201 are arranged horizontally on the rigid plate 204. The LRMP connectors 201 are interconnected through the rigid plate 204. The chassis can select the corresponding LRMP module 10 to be inserted into the chassis 1 according to functional needs. After the required LRMP modules 10 are inserted into the chassis 1, each LRMP module 10 is connected to the corresponding LRMP connector 201, which can realize the cableless interconnection between the LRMP modules 10. Each LRMP connector 201 is connected to the S7 connector 202 through the rigid plate 204 and the flexible plate 203. After the S7 connector 202 is connected to the signal adapter on the cabinet (or equipment rack), the cableless interconnection between each LRMP module 10 and other systems can be realized, and the transmission and processing of various signals can be completed.

[0071] A guide mechanism 4 is installed at the bottom of the module mounting cavity 102 of the housing 1. The guide mechanism 4 includes multiple guide rails 401 extending along the insertion direction. The guide rails 401 slide with the LRMP module 10 to guide each LRMP module 10 to achieve module-level blind insertion and removal. A type A locking device 6 is installed on the front panel 106 of the housing 1. The type A locking device 6 is used to lock the LRMP module 10. It is located below the insertion port 101 and corresponds to the insertion position of the LRMP module 2. After the LRMP module 2 is inserted into place, the corresponding type A locking device 6 locks the LRMP module 2 into place and secures it in the housing, achieving tool-free locking after each LRMP module 10 is inserted into place.

[0072] The rear panel 107 of the enclosure 1 is equipped with guide pin hole structures 9. In this embodiment, the two guide pin hole structures 9 are respectively installed on both sides below the mounting opening II 104 and fixed to the rear panel 107 of the enclosure 1 with screws. When the enclosure 1 is plugged in and out at the single-unit level, it is guided and plugged in by the guide pin hole structures 9 with the guide mechanism (e.g., guide pin) reserved in the cabinet (or equipment rack), so as to realize the single-unit blind plugging and unplugging of the entire enclosure 1. A type B locking device 7 is installed on the front end face of the enclosure 1. In this embodiment, the two type B locking devices 7 are respectively installed on both sides of the insertion hole 101. The type B locking devices 7 serve as enclosure locking devices, and after the enclosure is blindly plugged in, they lock and fix it to the cabinet (or equipment rack).

[0073] The bottom plate 111 of the housing 1 has a fan mounting hole 105 for the fan assembly 5. The fan mounting hole 105 is located below the module mounting cavity 102, and the fan assembly 5 is nested and fixed inside the fan mounting hole 105. Ventilation holes are also provided on the housing 1 to facilitate the intake of cold air and the exhaust of hot air. Each guide rail 401 in the guide mechanism 4 is fixed to the upper surface of the ventilation plate 11. The ventilation plate 11 is fixed to the inner wall of the bottom plate 111 and covers the fan assembly 5. Multiple bottom ventilation holes 1101 are distributed on the ventilation plate 11. In this embodiment, the bottom ventilation holes 1101 are elongated holes extending along the insertion / removal direction, and the guide rail 401 is positioned between two elongated holes. Multiple top ventilation holes 112 are distributed on the top plate 110 of the housing 1. The top ventilation holes 112 are located above the module mounting cavity 102. In this embodiment, the top ventilation holes 112 are elongated holes extending along the insertion / removal direction. To increase airflow, the top ventilation hole 112 and the bottom ventilation hole 1101 are located above or below the gap between modules (i.e., above or below the gap between guide rails 401).

[0074] When the fan assembly 5 is activated for heat dissipation, external cool air is drawn into the housing 1 through the top ventilation hole 112. After passing through the top ventilation hole 112, the cool air flows between the LRMP modules 10, carrying away the heat dissipated by the LRMP modules 10, and then flows out from the bottom ventilation hole 1101, passing through the fan assembly 5 to carry away the heat. Alternatively, external cool air is drawn into the housing 1 through the fan assembly 105. The external cool air passes through the bottom ventilation hole 1101 and enters between the LRMP modules 10, carrying away the heat dissipated by the LRMP modules 10, and then flows out from the top ventilation plate 112 to carry away the heat. Through the above-described operation mode of the fan assembly 5, excess heat is removed by forced air cooling, ensuring the normal operation of each LRMP module 10. In other embodiments, natural cooling, water cooling, or other methods can also be used to cool the LRMP modules 10.

[0075] The top plate 110 of the housing 1 has a reserved maintenance port 113, which is located above the rigid-flexible board mounting cavity 103. A maintenance port cover 8 is detachably installed inside the maintenance port 113 to close the housing 1. When maintenance is needed, the maintenance port cover 8 can be opened to allow for the installation, maintenance, and replacement of components such as the rigid-flexible board assembly 2 inside the rigid-flexible board mounting cavity 103. In this embodiment, the maintenance port 113 is a rectangular hole, the length of which is perpendicular to the insertion and removal direction of the LRMP module 10, and the size of the maintenance port 113 is close to the horizontal cross-sectional size of the rigid-flexible board mounting cavity 103. Since the metal backplate 3 is perpendicular to the insertion and removal direction of the LRMP module 10, and the metal backplate 3 serves as the separation structure between the rigid-flex board mounting cavity 103 and the module mounting cavity 102, the metal backplate 3 is the front sidewall of the rigid-flex board mounting cavity 103. Furthermore, the size of the rigid plate 204 is close to that of the metal backplate 3, which facilitates the insertion of the LRMP module 10 into the corresponding LRMP connector 201 on the rigid plate 204 when it abuts against the metal backplate 3. The rear plate 107 of the housing 1 is the rear sidewall of the rigid-flex board mounting cavity 103. The left and right sides of the rigid-flex board mounting cavity 103 are the left plate 108 and the right plate 109, respectively. The bottom side is the bottom plate 111, and the top side is the maintenance port 113. Together, they form a rigid-flex board mounting cavity 103 with an upward opening. The rigid-flex board assembly 2 can be vertically inserted into or removed from the rigid-flex board mounting cavity 103 from the top of the housing 1, which facilitates the maintenance and replacement of the rigid-flex board assembly 2.

[0076] When installing the rigid-flex PCB assembly 2, since the rigid plate 204 is close in size to the metal back plate 3, the rigid plate 204 is kept parallel to the metal back plate 3 and close to it. Then, the rigid plate 204 is vertically inserted into the rigid-flex PCB mounting cavity 103 and fixed to the metal back plate 3 using screws or other means. Since the S7 connector 202 is connected to the rigid plate 204 through the flexible plate 203, when installing the rigid plate 204, the S7 connector 202 can be placed outside the housing 1 first to leave operating space for the installation of the rigid plate 204. After the rigid plate 204 is installed, the S7 connector 202 is placed into the rigid-flex PCB mounting cavity 103 and inserted and fixed into the mounting opening II 104 of the rear plate 107. The installation process is convenient.

[0077] The rigid-flex PCB mounting cavity 103 and the module mounting cavity 102 are separated by a metal backplate 3. They are sequentially distributed along the insertion direction of the LRMP module 10. The insertion port 101 of the LRMP module 10 is located on the front face of the enclosure 1, and the maintenance port 113 is located on the rear side of the top face of the enclosure 1. The disassembly and assembly of the LRMP module 10 and the rigid-flex PCB assembly 2 do not affect each other. During maintenance, the installation position of the LRMP module 10 can remain unchanged; only the rigid-flex PCB assembly 2 needs to be disassembled and maintained. Furthermore, the ventilation component 5 is located below the module mounting cavity 102. Cool air passes vertically through the upper and lower walls of the enclosure 1 and the gaps in the LRMP module 10, carrying away heat. The rigid-flex PCB assembly 2 does not interfere with this heat dissipation path, ensuring smooth ventilation and achieving better heat dissipation.

[0078] The chassis features a cableless IMA rear-mounted pluggable connection architecture. The front of the chassis uses the LRMP connector 201 on the rigid-flex board assembly 2 and the guide mechanism 4 to ensure module-level blind plugging and unplugging of each LRMP module 10, and uses a Class A locking device 6 to lock and secure the LRMP modules 10. The rear of the chassis houses the rigid-flex board assembly 2, which is used for cableless interconnection between LRMP modules 10 and between LRMP modules 10 and other systems. The entire assembly uses the S7 connector 202, Class B locking device 7, and guide pin hole structure 9 on the rigid-flex board assembly 2 to achieve single-unit-level blind plugging and unplugging, i.e., locking and securing. Furthermore, the chassis uses a fan assembly 5 for forced air cooling to ensure proper operation of each LRMP module 10, and a service access cover 8 to allow for maintenance of internal components.

[0079] The advantages of this utility model are summarized as follows:

[0080] This chassis is based on a cableless IMA architecture, which decomposes the conventional rear-plug-in air-cooled chassis with complex functions and numerous components into standard modular units that can realize specific functions. The standard modular units can be functional modules such as power modules, network switching modules, remote control and local control modules, PON modules, and relay modules. Various types of modules are installed in the chassis 1 by plugging in as needed, realizing the function of field-replaceable LRMP modules 10. In actual application, users can add or remove modules in real time according to functional needs, which enhances the configurability and expandability of the chassis and facilitates its promotion and application. When a module fails, all modules are arranged in the chassis, which facilitates the quick location, disassembly, replacement and maintenance of the faulty module, meeting the user's requirements for timely maintenance.

[0081] This chassis uses a rigid-flex board assembly 2 to replace traditional cables. The rigid board 204 and flexible board 203 are stacked and arranged according to signal type and transmission requirements to achieve corresponding signal transmission and achieve higher anti-interference. After the required modules are inserted into the chassis 1, the modules can be cascaded with each other and with other systems through LRMP connector 201, rigid board 204, flexible board 203, and S7 connector 202. This improves the lightweight level of the chassis, reduces interference between different signals, and enhances overall reliability and security. At the same time, the routing path of the flexible board 202 can be uniformly planned according to the reserved space inside the chassis 1, further improving space utilization and making the product more compact.

[0082] Each LRMP module 10 can be plugged into and unplugged into the enclosure 1 at the module level. At the same time, the entire enclosure can be plugged into and unplugged into other systems at the stand-alone level, which facilitates the cascading of modules, enclosures and external systems to achieve stable transmission of multi-level signals.

[0083] The chassis can achieve blind insertion and removal of each LRMP module 10 to the chassis 1 through the guide mechanism 4 inside the chassis 1. The chassis 1 is also provided with a guide pin hole structure 9 to realize blind insertion and removal of the entire chassis, so that the chassis can realize multi-level blind insertion and removal, providing the chassis operation convenience.

[0084] Each LRMP module 10 is locked using a Class A locking device 6, and the entire chassis is locked using a Class B locking device 7, enabling tool-free assembly and disassembly at both the module and unit levels, facilitating quick replacement and maintenance.

[0085] The chassis is equipped with fan assembly 5, which can provide forced air cooling for each LRMP module.

[0086] The top plate 110 of the chassis is provided with a maintenance port 113. When the internal components of the chassis are damaged, the maintenance port cover 8 of the maintenance port 113 can be opened to repair the internal components.

[0087] In the second embodiment of this utility model, based on the first embodiment, the box body 1 can be integrally set, that is, the front plate 106, rear plate 107, left plate 108, right plate 109, top plate 110 and bottom plate 111 that make up the box body 1 are integrally set.

[0088] In Embodiment 3 of this utility model, based on Embodiment 1, the LRMP module 10 can be replaced with other forms of functional modules. Correspondingly, the LRMP connector 201 can be replaced with other corresponding module connectors for insertion with the connectors on the functional modules. Furthermore, the S7 connector 202 can be replaced with other forms of chassis connectors according to the connectors of the signal adapters on the cabinet (or equipment rack) to smoothly realize the insertion and removal of the chassis as a whole with the signal adapters on the cabinet (or equipment rack).

[0089] In Embodiment 4 of this utility model, based on Embodiment 1, in the rigid-flexible plate assembly 2, both ends of the flexible plate 203 are provided with rigid plates 204, and the module connector and the chassis connector are respectively provided on the corresponding rigid plates 204.

[0090] In Embodiment 5 of this utility model, based on Embodiment 1, the guide pin hole structure 9 on the rear plate 1 can be replaced with a guide pin, and can be guided to insert and remove the device with the guide mechanism (e.g., guide pin hole) reserved in the cabinet (or equipment rack).

[0091] In Embodiment Six of this utility model, based on Embodiment One, the A-type locking device 6 and the B-type locking device 7 can be replaced with other types of locking devices or a threaded connection can be used to achieve a detachable connection, and are not limited to the above two types of locking devices.

[0092] In Embodiment Seven of this utility model, based on Embodiment One, the ventilation plate 11 can be removed, the fan assembly 5 is nested on the base plate 111, and multiple guide rails 401 are distributed above the base plate 111. The guide rails 401 are fixed on the base plate 111. In addition to guiding the module insertion, the guide rails 401 can also cooperate with the locking device to support and fix the module. At the same time, the gaps between the guide rails 401 can serve as ventilation holes.

[0093] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rear-pluggable air-cooled chassis based on a cableless IMA architecture, comprising a chassis (1), characterized in that: The enclosure (1) is detachably equipped with functional modules and a rigid-flex plate assembly (2). The rigid-flex plate assembly (2) includes a flexible plate (203), a rigid plate (204) is provided at one end of the flexible plate (203), a module connector for plugging into the corresponding functional module is provided on the rigid plate (204), a chassis connector for interconnecting with a signal adapter device outside the enclosure (1) is provided on the enclosure (1), and the other end of the flexible plate (203) is connected to the chassis connector.

2. The rear-swappable air-cooled chassis based on a cableless IMA architecture according to claim 1, characterized in that: The housing (1) is provided with a back plate that divides the inner cavity of the housing (1) into a module mounting cavity (102) and a rigid-flexible plate mounting cavity (103). Functional modules are inserted into the module mounting cavity (102), and rigid-flexible plate assemblies (2) are installed in the rigid-flexible plate mounting cavity (103). A rigid plate (204) is set on the back plate.

3. A rear-swappable air-cooled chassis based on a cableless IMA architecture as described in claim 1, characterized in that: The housing (1) is provided with a guide mechanism (4) for guiding the functional modules to be inserted into the housing (1). The guide mechanism (4) guides the functional modules to be inserted into the corresponding module connectors.

4. A rear-swappable air-cooled chassis based on a cableless IMA architecture as described in claim 1, characterized in that: The housing (1) is provided with a module locking device for locking the functional modules inside the housing (1).

5. A rear-pluggable air-cooled chassis based on a cableless IMA architecture according to claim 1, characterized in that: The enclosure (1) is provided with a guide pin or guide pin hole structure (9). When the enclosure is interconnected with the signal adapter, the guide pin or guide pin hole structure (9) is used to guide the insertion with the guide mechanism on the cabinet or equipment rack.

6. A rear-swappable air-cooled chassis based on a cableless IMA architecture according to claim 1, characterized in that: The enclosure (1) is provided with an enclosure locker for locking and fixing to the cabinet or equipment rack when the enclosure is interconnected with the signal adapter.

7. A rear-swappable air-cooled chassis based on a cableless IMA architecture according to claim 1, characterized in that: The housing (1) is provided with a fan assembly (5) and ventilation holes.

8. A rear-swappable air-cooled chassis based on a cableless IMA architecture according to claim 7, characterized in that: The fan assembly (5) is located on the bottom side of the module mounting cavity (102). A guide mechanism (4) is provided between the fan assembly (5) and the functional module. The guide mechanism (4) includes a guide rail (401) that slides with the bottom of the functional module. A top ventilation hole (112) is provided on the wall of the box (1) on the other side of the module mounting cavity (102). The top ventilation hole (112) is an elongated hole. The length direction of the elongated hole is the insertion and removal direction of the functional module. The top ventilation hole (112) is located above the gap between two adjacent guide rails (401).

9. A rear-swappable air-cooled chassis based on a cableless IMA architecture as described in claim 8, characterized in that: A ventilation plate (11) is provided on the inner side of the bottom wall of the box (1). The ventilation plate (11) is fixed above the fan assembly (5). The ventilation plate (11) has a bottom ventilation hole (1101). A guide rail (401) is provided on the upper surface of the ventilation plate (11). The bottom ventilation hole (112) is a long hole. The length direction of the long hole is the insertion and removal direction of the functional module. The guide rail (401) is located between two adjacent bottom ventilation holes (112).

10. A rear-swappable air-cooled chassis based on a cableless IMA architecture according to claim 1, characterized in that: A maintenance port (113) is provided on the housing (1), and a maintenance port cover (8) is provided on the maintenance port (113); the rigid-flexible plate assembly (2) is located in the rigid-flexible plate mounting cavity (103) inside the housing (1), and the maintenance port (113) is connected to the rigid-flexible plate mounting cavity (103).

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