Case with quick-change air cooling module

Abstract

The utility model relates to the field of cases, in particular to a case with a quick-change air cooling module, which comprises a case body internally provided with a mounting cavity; the heat dissipation flow channel is arranged in the box body, is provided with an air inlet and an air outlet, and comprises a fan module mounting cavity, and a heat dissipation cavity opening allowing a fan module to be inserted and pulled is formed in the side wall of the fan module mounting cavity; the fan module is assembled in the fan module mounting cavity in a pluggable mode and comprises a mounting frame and a fan fixedly connected to the mounting frame, an exhaust port is formed in the side wall of the mounting frame, and the exhaust port communicates with the downstream of the heat dissipation flow channel; the problems that an existing fan is tedious in maintenance process, long in downtime and the like are solved in a targeted mode, convenience, high efficiency, safety and universality of fan maintenance are achieved through tool-free disassembly and assembly, the maintenance time is shortened, cost and safety risks are reduced, and the strict requirements of aviation or military equipment for equipment operation and maintenance convenience and operation reliability are met.

Description

Technical Field

[0001] This utility model relates to the field of chassis, specifically to a chassis with a quick-change air-cooling module. Background Technology

[0002] In the aviation field, the chassis is the core carrier for flight data processing and equipment control. As a key heat dissipation component of the aviation chassis, the fan must continuously provide forced cooling for high-power electronic components inside the chassis, such as processors, radio frequency modules, and sensor components, to cope with the harsh operating conditions of the aviation environment, such as confined spaces, vibration and shock, and large temperature fluctuations. Due to the high frequency of use and harsh environment in aviation scenarios, the service life of the fan is much shorter than the design life of the chassis body, making it a typical vulnerable and consumable component that needs to be replaced regularly. However, the existing fan installation and connection methods for aircraft enclosures have the following drawbacks: First, the maintenance process is cumbersome and the operation threshold is high. Fans are mostly fixed by bolts, welding or hard wiring. The internal space of the enclosure is compact, and maintenance requires special tools to disassemble the panel, tighten the bolts and disconnect the cables. This relies on professional personnel and is time-consuming and labor-intensive. Second, the downtime is long. Traditional replacement takes a long time, causing mission interruption, resulting in economic losses and safety risks. Third, the replacement process is prone to secondary damage. Loose screws may cause short circuits, and pulling cables may cause the solder joints to fall off. The lack of a positioning structure may lead to misalignment during installation. In addition, the integrated design of the fan and bracket increases the cost of spare parts. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a chassis with a quick-change air-cooling module. This solution addresses the problems of cumbersome maintenance procedures and long downtime in existing fan maintenance. By enabling tool-free disassembly and assembly, it achieves convenient, efficient, safe, and universal fan maintenance, shortening maintenance time, reducing costs and safety risks, and meeting the stringent requirements of aviation or military equipment for ease of maintenance and operational reliability.

[0004] The purpose of this utility model is achieved as follows: a chassis with a quick-change air-cooling module, comprising:

[0005] The enclosure has an internal mounting cavity;

[0006] A heat dissipation channel is provided inside the housing, with an air inlet and an air outlet, and includes a fan module mounting cavity. The side wall of the fan module mounting cavity has a heat dissipation cavity opening for inserting and removing the fan module.

[0007] A fan module is pluggable and detachable and can be installed in the fan module mounting cavity. It includes a mounting frame and a fan fixed to the mounting frame. The side wall of the mounting frame is provided with an exhaust port, and the exhaust port is connected to the downstream of the heat dissipation channel.

[0008] A locking mechanism is provided on the mounting frame and includes two sets of locking components symmetrically distributed on both sides of the fan, each set of locking components including a mounting shaft;

[0009] The mounting shaft is sequentially fitted with a first wedge block, an odd number of floating wedge blocks, and a second wedge block along the axial direction, with adjacent wedge blocks slidingly engaged through wedge surfaces;

[0010] The mounting shaft passes through the first wedge block and is hinged to the eccentric structure. The eccentric structure has a cam profile that squeezes the first wedge block when rotating. The cam side of the eccentric structure is provided with a rotatable rotary handle. The extension ends of the two sets of rotary handles are fixedly connected by a connecting part.

[0011] The mounting shaft is provided with a limiting part at its distal end, and the limiting part abuts against the side of the second wedge block away from the floating wedge block along the axial direction;

[0012] A cover plate is closable over the opening of the heat dissipation cavity, and when the cover plate is closed, it presses against the rotary handle.

[0013] The eccentric cam is integrally formed with the rotary handle. A first limiting surface is provided on the cam. When the first limiting surface abuts against the first wedge block, the cam is rotated and limited. The two sets of rotary handles are integrally formed with the connecting part.

[0014] The cover plate is hinged to the opening of the heat dissipation cavity, and the free end of the cover plate is provided with a locking assembly, which is used to lock the cover plate to the housing when it is closed.

[0015] The heat dissipation cavity opening is provided with a step, and the outer end face of the step forms a limiting surface that limits the rotation handle.

[0016] The fan module mounting cavity is provided with an upper guide strip and a lower guide strip. The upper guide strip is connected to the upper wall of the fan module mounting cavity, and the lower guide strip is connected to the bottom wall of the fan module mounting cavity. An upper guide groove is formed between the upper guide strip and the side cavity wall of the corresponding fan module mounting cavity, and a lower guide groove is formed between the lower guide strip and the side cavity wall of the corresponding fan module mounting cavity. The outer openings of the upper guide groove and the lower guide groove both face the opening of the heat dissipation cavity.

[0017] Both the upper and lower guide bars have L-shaped cross sections. One side wall of the L-shape is connected to the corresponding upper or bottom wall by screws, and the other side wall of the L-shape extends into the fan module mounting cavity to form the groove wall of the corresponding guide groove.

[0018] The side wall of the housing upstream of the heat dissipation channel is provided with several mesh holes.

[0019] The mounting bracket is provided with a socket bracket, and a socket is installed on the socket bracket. The cavity wall at the far end of the fan module mounting cavity is provided with a socket that is compatible with the socket.

[0020] The fan frame of the fan is fixedly connected to the mounting bracket by screws; the free end of the cover plate is provided with a tightening bolt, which is threadedly connected to the threaded hole at the opening of the heat dissipation cavity.

[0021] The above-mentioned solution offers the following advantages: the mounting cavity of the enclosure provides a stable space for the electronic module, ensuring the secure installation of core components; the air inlet and outlet of the heat dissipation channel create a smooth heat dissipation path, and the openings of the fan module mounting cavity and heat dissipation cavity provide a structural basis for the insertion and removal of the fan module; the pluggable design of the fan module, combined with the fixed connection structure between the mounting bracket and the fan, enables tool-free quick removal and placement, and the exhaust port is connected to the downstream of the heat dissipation channel to ensure continuous airflow; the two sets of symmetrical locking components of the locking mechanism, through the assembly of the mounting shaft, combined with the sliding engagement of the first wedge block, an odd number of floating wedge blocks, and the wedge surface of the second wedge block, form a stable and anti-loosening structure, effectively resisting the impact of aviation vibration; the eccentric structure near the mounting shaft and the linkage design of the rotary handle and connecting part enable synchronous locking of the two sets of components. The design features a tight and easy-to-unlock mechanism with a wedge-shaped axial positioning part at the far end of the mounting shaft to prevent the locking structure from shifting. A cover plate encloses the heat dissipation cavity opening and presses down the rotary handle to further prevent accidental loosening. Through the synergistic effect of these structures, the utility model achieves convenient, efficient, safe, and universal fan maintenance, significantly shortening maintenance time, avoiding secondary damage, and reducing maintenance and spare parts costs. Simultaneously, it ensures continuous operation and stable heat dissipation of airborne equipment, perfectly adapting to the stringent requirements of aviation scenarios. The fan module is inserted and removed via a guide slot, and the rotary handle of the locking mechanism allows for tool-free locking and unlocking. This enables rapid tool-free maintenance of the fan module and adapts to the harsh operating conditions of vibration and air pressure changes in aviation or military equipment, ensuring reliable installation and efficient maintenance of the fan module.

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the chassis structure after the side cover has been removed.

[0025] Figure 3 In order to be in Figure 2 A schematic diagram of the chassis structure after removing the cover plate;

[0026] Figure 4 A first-view schematic diagram of the mounting frame and fan arrangement structure;

[0027] Figure 5 This is a second-view schematic diagram of the mounting frame and fan arrangement structure.

[0028] 100 is the enclosure; 101 is the mounting cavity; 200 is the electronic module; 300 is the heat dissipation channel; 301 is the air inlet; 302 is the air outlet; 303 is the fan module mounting cavity; 304 is the heat dissipation cavity opening; 316 is the upper guide bar; 317 is the lower guide bar; 318 is the upper guide groove; 319 is the lower guide groove; 321 is the connector; 400 is the fan module; 401 is the mounting bracket; 402 is the fan; 404 is the exhaust port. 405 is the socket bracket, 406 is the socket, 407 is the fan frame, 500 is the locking mechanism, 501 is the locking assembly, 502 is the mounting shaft, 503 is the first wedge block, 504 is the second wedge block, 505 is the floating wedge block, 506 is the wedge surface, 507 is the eccentric structure, 5071 is the cam, 508 is the rotary handle, 509 is the connecting part, 510 is the limiting part, 600 is the cover plate, and 602 is the tightening bolt. Detailed Implementation

[0029] Referring to the accompanying drawings, the specific embodiments of this utility model will be described in detail.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms center, upper, lower, front, back, left, right, vertical, horizontal, top, bottom, inner, and outer, indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, the terms first and second are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined as first and second can be used to explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more. It should be noted that in practical applications, due to limitations in equipment precision or installation errors, absolute parallelism or perpendicularity is difficult to achieve. In this utility model, the descriptions of vertical, parallel, or unidirectional are not absolute limiting conditions, but rather indicate that vertical or parallel structural settings can be achieved within a preset error range, and the corresponding preset effects can be achieved. In this way, the technical effects of the defined features can be maximized, and the corresponding technical solutions can be easily implemented, thus having high feasibility.

[0032] In the description of this specification, the references to the terms "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0033] See Figures 1-5 An embodiment of a chassis with a quick-change air-cooling module is disclosed in this embodiment. The chassis with a quick-change air-cooling module includes a chassis 100, a heat dissipation channel 300, a fan module 400, a locking mechanism 500, and a cover plate 600. The specific structure and connection relationship of each component are as follows:

[0034] The enclosure 100 is made of die-cast aluminum alloy and has an integrally formed mounting cavity 101 inside. The size of the mounting cavity 101 is adapted to the shape of the electronic module 200 to ensure that the electronic module 200 is stably housed. The side wall of the enclosure 100 is reserved with a mounting position adapted to the heat dissipation cavity opening 304 for mounting the cover plate 600.

[0035] The electronic module 200, including core electronic components such as the motherboard and power module, is assembled in the mounting cavity 101. The heat generated by the electronic module 200 during operation is transferred to the inner wall of the enclosure 100 or the heat dissipation fins through heat conduction, and at the same time, the heat is carried away by the airflow through the heat dissipation channel 300.

[0036] The heat dissipation channel 300 is located inside the housing 100 and can be located on one side of the mounting cavity 101. For example, the air inlet 301 is opened on the left side wall of the housing 100 and the air outlet 302 is opened on the right side wall of the housing 100, forming a straight airflow path with left inlet and right outlet. The heat dissipation channel 300 includes a fan module mounting cavity 303. The side wall of the fan module mounting cavity 303 has a heat dissipation cavity opening 304 for the fan module 400 to be inserted and removed in the front-back direction. The side wall of the housing 100 corresponding to the upstream of the heat dissipation channel 300 has a number of mesh holes with a diameter of 2-3 mm. The number of mesh holes together form the air inlet 301. The main function of the mesh hole structure is to filter foreign objects, protect internal components, and optimize airflow.

[0037] The fan module 400 is pluggable and detachable and can be installed in the fan module mounting cavity 303 to provide power to the entire heat dissipation channel 300. It includes a mounting bracket 401 and a fan 402. The mounting bracket 401 is formed of steel plate and can be rectangular. Its side wall has three exhaust ports 404, which can be correspondingly set with three fans 402. The exhaust ports 404 are rectangular and communicate with the downstream area of ​​the heat dissipation channel 300 to ensure that the airflow generated by the fan 402 can quickly enter the downstream of the heat dissipation channel 300 and remove heat. The fan frame 407 of the fan 402 is fixed to the mounting bracket 401 by four M3 screws. The fan 402 is an axial flow fan. The fan module 400 moves smoothly along the guide groove when plugged in and out.

[0038] The locking mechanism 500 enables the fan module 400 to be quickly locked and unlocked. It includes two sets of locking components 501 symmetrically distributed on the left and right sides of the fan 402. The mounting shaft 502 of each locking component 501 is made of stainless steel. A first wedge block 503, an odd number of floating wedge blocks 505 and a second wedge block 504 are sequentially fitted on the mounting shaft 502 along the axial direction. Adjacent wedge blocks are slidably engaged through the wedge surface 506. When the mounting shaft 502 is pulled out, the wedge blocks can be moved axially and squeezed.

[0039] The proximal end of the mounting shaft 502, near the opening 304 of the heat dissipation cavity, passes through the first wedge block 503 and is hinged to the eccentric structure 507. Specifically, a hinge hole is provided on the eccentric structure 507, and the proximal end of the mounting shaft 502 is hinged to the eccentric structure 507 through a pin passing through the hinge hole. The eccentric structure 507 has a cam profile that compresses the first wedge block 503 when rotating. The cam side of the eccentric structure 507 is provided with a flip-up rotary handle 508. The cam 5071 and the rotary handle 508 of the eccentric structure 507 are made of aluminum alloy as a single piece. The two sets of rotating handles 508 are integrally formed with the metal connecting parts 509. When the connecting parts 509 are pressed, the rotating handles 508 can drive the eccentric structure 507 to rotate, thereby driving the mounting shaft 502 to retract. The far end of the mounting shaft 502, away from the heat dissipation cavity opening 304, is provided with a limiting part 510. The limiting part 510 is an M8 nut, which is connected to the mounting shaft 502 by threads and abuts against the outside of the second wedge block 504 axially to prevent the wedge block from falling off the mounting shaft 502 and to move and compress the wedge block. A first limiting surface is provided on the cam 5071. When the first limiting surface abuts against the first wedge block 503, the cam rotates and is limited, which can initially limit the movement and prevent the cam 5071 from resetting before the cover plate 600 is closed.

[0040] The cover plate 600 is hinged to the left side of the heat dissipation cavity opening 304 via a hinge, and can be rotated around the hinge to open and close. When the cover plate 600 is closed, its inner sidewall can press against the top of the rotary handle 508 to further prevent the rotary handle 508 from loosening. The free end of the cover plate 600 is provided with a locking assembly, which includes a plastic buckle and a metal hook. After the cover plate 600 is closed, the buckle can engage with the hook on the housing 100 to achieve initial locking. Of course, the free end of the cover plate 600 can also be provided with a tightening bolt 602, which can be threadedly connected to the threaded hole on the right side of the heat dissipation cavity opening 304. The cover plate 600 is locked by tightening the bolt 602, which improves the reliability of closing. The threaded connection forms the locking assembly.

[0041] In some embodiments, see Figure 2 , Figure 2This is a schematic diagram of the chassis structure after the side cover is removed. The fan module mounting cavity 303 is provided with an upper guide strip 316 and a lower guide strip 317. The upper guide strip 316 is connected to the upper wall of the fan module mounting cavity 303, and the lower guide strip 317 is connected to the bottom wall of the fan module mounting cavity 303. An upper guide groove 318 is formed between the upper guide strip 316 and the corresponding side wall of the fan module mounting cavity 303, and a lower guide groove 319 is formed between the lower guide strip 317 and the corresponding side wall of the fan module mounting cavity 303. The outer openings of both the upper guide groove 318 and the lower guide groove 319 face the heat dissipation cavity opening 304. Furthermore, both the upper guide bar 316 and the lower guide bar 317 are L-shaped cold-rolled steel plates. One side wall of the L-shape is fixed to the upper wall and the bottom wall of the fan module mounting cavity 303 by two M4 screws respectively. The other side wall extends into the cavity and has an upper guide groove 318 and a lower guide groove 319 between it and the cavity wall. The outer groove of the guide groove faces the heat dissipation cavity opening 304, providing guidance for the insertion and removal of the fan module 400.

[0042] In some embodiments, a step is provided inside the heat dissipation cavity opening 304, and the outer end face of the step forms a limiting surface that fits against the bottom of the rotary handle 508, thereby limiting the rotation of the rotary handle 508 and preventing the rotary handle 508 from rotating excessively.

[0043] At the far end of the mounting bracket 401, near the far end of the fan module mounting cavity 303, there is also a socket bracket 405. The socket bracket 405 is fixed to the mounting bracket 401 by screws. A socket 406 is installed on the socket bracket 405 for power and signal connection. The cavity wall at the far end of the fan module mounting cavity 303 is provided with a socket 321 that is compatible with the socket 406. The socket 321 is connected to the power supply inside the chassis through a wire. When the fan module 400 is fully inserted into the fan module mounting cavity 303, the socket 406 and the socket 321 automatically connect to enable power supply to the fan 402 without the need for additional wiring.

[0044] Using the above scheme, during assembly, the fan frame 407 of the fan 402 is fixed to the mounting bracket 401 with M3 screws, and then the socket 406 is installed on the socket bracket 405, completing the pre-assembly of the fan module 400; the fan module 400 is aligned with the upper guide groove 318 and lower guide groove 319 of the fan module mounting cavity 303, and pushed in along the guide grooves until the socket 406 at the rear end of the mounting bracket 401 aligns with the socket 321; the two sets of rotary handles 508 are pressed down to drive the eccentric structure 507 to rotate. This drives the mounting shaft 502 to move, causing the first wedge block 503, the floating wedge block 505, and the second wedge block 504 to slide along the wedge surface 506, achieving a tight fit between the mounting bracket 401 and the fan module mounting cavity 303, thus completing the locking. The cover plate 600 is rotated around the hinge so that the cover plate 600 covers the heat dissipation cavity opening 304. Initial locking is achieved first through the locking assembly, and then the tightening bolt 602 at the free end of the cover plate 600 is tightened, so that the inner side wall of the cover plate 600 presses against the rotary handle 508, completing the overall assembly.

[0045] After the chassis is powered on, the fan 402 starts, and external cold air enters the upstream of the heat dissipation channel 300 through the air inlet 301. After being filtered by the mesh, it flows to the fan module 400. After being accelerated by the fan 402, the airflow enters the downstream of the heat dissipation channel 300 through the exhaust port 404 on the side wall of the mounting bracket 401. It flows through the heat-generating area of ​​the electronic module 200, carries away the heat, and is discharged from the air outlet 302, forming a complete heat dissipation cycle.

[0046] When the fan module 400 needs maintenance, first loosen the tightening bolts 602 of the cover plate 600, unlock the locking assembly, and open the cover plate 600; turn the rotary handle 508 upward to drive the eccentric structure 507 to rotate in the opposite direction, so that the wedge block is loosened or reset along the wedge surface 506, and the locking is released; pull the fan module 400 out along the guide groove, and the fan 402 can be inspected or replaced. After maintenance, the fan module 402 can be reset by reversing the assembly process.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A chassis with a quick-switch air-cooling module, characterized in that, include: The housing (100) has an internal mounting cavity (101); A heat dissipation channel (300) is provided inside the housing (100), and is provided with an air inlet (301) and an air outlet (302), and includes a fan module mounting cavity (303). The side wall of the fan module mounting cavity (303) is provided with a heat dissipation cavity opening (304) for inserting and removing the fan module. A fan module (400) is pluggably assembled into the fan module mounting cavity (303), including a mounting frame (401) and a fan (402) fixed to the mounting frame (401). The side wall of the mounting frame (401) is provided with an exhaust port (404), and the exhaust port (404) is connected to the downstream of the heat dissipation channel (300). The locking mechanism (500) is provided on the mounting bracket (401) and includes two sets of locking components (501) symmetrically distributed on both sides of the fan (402). Each set of locking components (501) includes a mounting shaft (502). The mounting shaft (502) is fitted with a first wedge block (503), an odd number of floating wedge blocks (505) and a second wedge block (504) in sequence along the axial direction, and adjacent wedge blocks are slidably engaged through the wedge surface (506); The mounting shaft (502) passes through the first wedge block (503) and is hinged to the eccentric structure (507). The eccentric structure has a cam profile that squeezes the first wedge block (503) when rotating. The cam side of the eccentric structure (507) is provided with a rotatable rotary handle (508). The extension ends of the two sets of rotary handles (508) are fixedly connected by a connecting part (509). The mounting shaft (502) is provided with a limiting part (510) at its distal end, and the limiting part (510) abuts against the side of the second wedge block (504) away from the floating wedge block (505) along the axial direction; A cover plate (600) is closably disposed over the opening (304) of the heat dissipation cavity, and when the cover plate (600) is closed, it presses against the rotary handle (508).

2. The chassis with a quick-change air-cooling module according to claim 1, characterized in that, The cam (5071) of the eccentric structure (507) is integrally formed with the rotary handle (508). A first limiting surface is provided on the cam (5071). When the first limiting surface abuts against the first wedge block (503), the cam is rotated and limited. The two sets of rotary handles (508) and connecting parts (509) are integrally formed.

3. The chassis with a quick-change air-cooling module according to claim 1, characterized in that, The cover plate (600) is hinged to the heat dissipation cavity opening (304), and the free end of the cover plate (600) is provided with a locking assembly, which is used to lock the cover plate (600) to the housing (100) when the cover plate (600) is closed.

4. The chassis with a quick-change air-cooling module according to claim 1, characterized in that, The heat dissipation cavity opening (304) is provided with a step, and the outer end face of the step forms a limiting surface that limits the rotation handle (508).

5. The chassis with a quick-change air-cooling module according to claim 1, characterized in that, The fan module mounting cavity (303) is provided with an upper guide strip (316) and a lower guide strip (317). The upper guide strip (316) is connected to the upper wall of the fan module mounting cavity (303), and the lower guide strip (317) is connected to the bottom wall of the fan module mounting cavity (303). An upper guide groove (318) is formed between the upper guide strip (316) and the side cavity wall of the corresponding fan module mounting cavity (303), and a lower guide groove (319) is formed between the lower guide strip (317) and the side cavity wall of the corresponding fan module mounting cavity (303). The outer openings of the upper guide groove (318) and the lower guide groove (319) both face the heat dissipation cavity opening (304).

6. The chassis with a quick-change air-cooling module according to claim 5, characterized in that, The cross-sections of the upper guide bar (316) and the lower guide bar (317) are both L-shaped. One side wall of the L-shape is connected to the corresponding upper wall or bottom wall by screws, and the other side wall of the L-shape extends into the fan module mounting cavity (303) to form the groove wall of the corresponding guide groove.

7. The chassis with a quick-change air-cooling module according to claim 1, characterized in that, The side wall of the box (100) corresponding to the upstream of the heat dissipation channel (300) is provided with several mesh holes.

8. The chassis with a quick-change air-cooling module according to claim 1, characterized in that, The mounting bracket (401) is provided with a socket bracket (405), and a socket (406) is installed on the socket bracket (405). The cavity wall at the far end of the fan module mounting cavity (303) is provided with a socket (321) that is compatible with the socket (406).

9. The chassis with a quick-change air-cooling module according to claim 1, characterized in that, The fan frame (407) of the fan (402) is fixedly connected to the mounting bracket (401) by screws; the free end of the cover plate (600) is provided with a tightening bolt (602), which is threadedly connected to the threaded hole at the opening (304) of the heat dissipation cavity.

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