Shielding case

Abstract

The utility model provides a shielding case, which relates to the field of cases and comprises a shielding case body, a first ventilating duct is arranged at the bottom of the inner wall of the shielding case body, a second ventilating duct is arranged at the top of the inner wall of the shielding case body, and a cooling fan is fixedly arranged at the top of the inner wall of the shielding case body and positioned below the second ventilating duct. The first ventilation duct and the second ventilation duct are arranged in the shielding machine box body, the heat dissipation fins are uniformly distributed in the first ventilation duct and the second ventilation duct, the heat dissipation fins are arranged close to the interior of the shielding machine box body, and the shielding plates are uniformly distributed in the first ventilation duct and the second ventilation duct; according to the scheme, through cooperation of the shielding plates and the heat dissipation fins, a structure for performing labyrinth type shielding on the interior of the ventilation channel can be formed, air circulation in the shielding machine box body can be ensured to enhance the heat dissipation effect, electromagnetic wave leakage can be effectively inhibited, and therefore good electromagnetic shielding performance can be kept.

Description

Technical Field

[0001] This utility model relates to the field of chassis, and more particularly to a shielded chassis. Background Technology

[0002] A computer chassis is an enclosure used to install and protect electronic equipment or computer hardware components. Internally, it typically houses a motherboard bracket, power supply compartment, hard drive bays, and mounting positions for cooling fans to ensure efficient component placement and good heat dissipation. In applications with high electromagnetic compatibility (EMC) requirements, shielded chassis are necessary to prevent external electromagnetic interference from affecting the internal electronic equipment and to suppress electromagnetic wave leakage from internal devices, thereby ensuring stable operation and compliance with EMC standards.

[0003] In related technologies, a shielded enclosure is primarily a type of enclosure with electromagnetic shielding capabilities. It is typically made of highly conductive metal materials, such as galvanized steel, aluminum alloy, or copper alloy, and has a conductive coating sprayed inside to further enhance its shielding effect. In addition, to reduce the impact of electromagnetic interference on signal processing and improve the stability and reliability of the equipment, conductive rubber sealing strips are usually installed at the joints of the enclosure to ensure good electromagnetic shielding performance. However, to meet heat dissipation requirements, ventilation openings are usually required on the enclosure, and the location of these ventilation openings may become leakage points for electromagnetic interference, thereby weakening the shielding effect of the enclosure.

[0004] Therefore, it is necessary to provide a shielded enclosure to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the technical problem that ventilation openings in the aforementioned chassis may weaken the shielding effect, this utility model provides a shielded chassis.

[0006] This utility model provides a shielded enclosure, comprising: a shielded enclosure body, a first ventilation duct at the bottom of the inner wall of the shielded enclosure body, a second ventilation duct at the top of the inner wall of the shielded enclosure body, a cooling fan fixedly mounted at the top of the inner wall of the shielded enclosure body and located below the second ventilation duct, cooling fins, and baffles. The cooling fins are provided in multiple portions, evenly distributed inside the first and second ventilation ducts, and positioned close to the interior of the shielded enclosure body. The baffles are also provided in multiple portions, evenly distributed inside the first and second ventilation ducts, and positioned away from the interior of the shielded enclosure body. Each cooling fin is spaced apart from each baffle.

[0007] Preferably, the shielded enclosure includes a rectangular box, the first ventilation duct is opened at the bottom of the inner wall of the rectangular box, the second ventilation duct is opened at the top of the inner wall of the rectangular box, the upper surface of the cooling fan is fixedly connected to the top of the inner wall of the rectangular box, a protective cover is provided on one side of the rectangular box by bolts, and a conductive rubber sealing strip is provided between the contact surface of the rectangular box and the protective cover.

[0008] Preferably, a limiting strip is uniformly fixedly connected to the side of the rectangular box away from the protective cover, and the limiting strip is located between the first ventilation duct and the second ventilation duct.

[0009] Preferably, the rectangular box has two mounting frames on the side away from the protective cover, and the two mounting frames are located on the same side of the first ventilation duct and the second ventilation duct, respectively. The inside of the mounting frames is provided with a protective net.

[0010] Preferably, a rectangular protective frame is fixedly connected to the top of the inner wall of the rectangular box, the cooling fan is located inside the rectangular protective frame, a safety net is fixedly connected to the inner wall of the rectangular protective frame, and the safety net is located below the cooling fan.

[0011] Preferably, a plurality of female magnetic strips are fixedly connected to the side of the rectangular box away from the protective cover, and the plurality of female magnetic strips are located on one side of the first ventilation duct and the second ventilation duct respectively. A sub-magnetic strip is fixedly connected to the side of the mounting frame close to the rectangular box, and one side of the sub-magnetic strip is magnetically connected to one side of the female magnetic strip.

[0012] Compared with related technologies, the shielded enclosure provided by this utility model has the following beneficial effects:

[0013] 1. This shielded enclosure ensures airflow within the enclosure to enhance heat dissipation while effectively suppressing electromagnetic wave leakage. The enclosure restricts the installation position of the cooling fan. When the fan is activated, external air enters through the first ventilation duct, while air inside the enclosure exits through the second ventilation duct, thus enhancing heat dissipation for the internal equipment. The first and second ventilation ducts restrict the installation positions of uniformly arranged heat dissipation fins and baffles. The heat dissipation fins are positioned close to the interior of the enclosure, conducting heat dissipated by the enclosure and further improving heat dissipation performance. The baffles are positioned away from the enclosure and spaced apart from the fins, creating a labyrinthine shielding structure within the ventilation ducts. This ensures airflow within the enclosure for enhanced heat dissipation while effectively suppressing electromagnetic wave leakage, maintaining excellent electromagnetic shielding performance.

[0014] 2. The protective cover of this shielded enclosure can be disassembled and installed as needed to facilitate personnel to inspect and maintain the equipment installed inside the rectangular enclosure. The conductive rubber sealing strip can improve the sealing effect at the connection between the protective cover and the rectangular enclosure. The rectangular protective frame, together with the safety net, can cover the cooling fan, which can provide a certain degree of protection for the cooling fan and prevent the operator from colliding with the cooling fan during inspection and maintenance.

[0015] 3. When the rectangular box of this shielded enclosure is placed against a flat surface, the limiting strip can restrict the position between the side wall of the rectangular box and the flat surface, thereby ensuring the ventilation of the first and second ventilation ducts. Through the cooperation of the sub-magnetic strip and the mother magnetic strip, the mounting frame can be magnetically installed on one side of the rectangular box. The mounting frame can install the protective net on one side of the ventilation duct. The protective net can play a certain role in protecting and filtering the ventilation duct. Through the cooperation of the sub-magnetic strip and the mother magnetic strip, the mounting frame can be easily disassembled by personnel, which facilitates the cleaning of the protective net. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the shielded enclosure provided by this utility model;

[0017] Figure 2 A cross-sectional structural diagram of the shielded enclosure provided by this utility model;

[0018] Figure 3 The shielded enclosure provided by this utility model Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 4 The shielded enclosure provided by this utility model Figure 2 Enlarged schematic diagram of the structure at point B in the diagram.

[0020] The following are the labels in the diagram: 1. Shielded enclosure; 101. Rectangular box; 102. Protective cover; 103. Conductive rubber sealing strip; 2. Safety net; 3. First ventilation duct; 4. Second ventilation duct; 5. Cooling fan; 6. Cooling fins; 7. Baffle plate; 8. Limiting strip; 9. Mounting frame; 10. Protective net; 11. Female magnetic strip; 12. Female magnetic strip; 13. Rectangular protective frame. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figures 1 to 4A shielded enclosure includes: a shielded enclosure body 1, a first ventilation duct 3 formed at the bottom of the inner wall of the shielded enclosure body 1, a second ventilation duct 4 formed at the top of the inner wall of the shielded enclosure body 1, a cooling fan 5 fixedly installed at the top of the inner wall of the shielded enclosure body 1 and located below the second ventilation duct 4, cooling fins 6, and baffles 7. Multiple cooling fins 6 are evenly distributed inside the first ventilation duct 3 and the second ventilation duct 4, and are positioned close to the interior of the shielded enclosure body 1. Multiple baffles 7 are evenly distributed inside the first ventilation duct 3 and the second ventilation duct 4, and are positioned away from the interior of the shielded enclosure body 1. Each cooling fin 6 is spaced apart from each baffle 7.

[0023] In the specific implementation process, the shielded enclosure 1 set in the shielded enclosure can be made of highly conductive metal materials, such as galvanized steel plate, aluminum alloy or copper alloy, and a conductive coating is sprayed inside the enclosure to further enhance its shielding effect. The interior of the shielded enclosure 1 is used to install motherboard brackets, power supply compartments and hard drives, etc. Furthermore, the cooling fan 5 is fixedly installed on the top of the inner wall of the shielded enclosure 1 with bolts. When the cooling fan 5 is started, the external air can enter the interior through the first ventilation channel 3 opened at the bottom of the inner wall of the shielded enclosure 1, while the air inside the shielded enclosure 1 can be discharged outward through the second ventilation channel 4 opened at the top of the inner wall of the shielded enclosure 1, thereby accelerating the air circulation speed inside the shielded enclosure 1 and enhancing the heat dissipation effect of the equipment inside the shielded enclosure 1.

[0024] Furthermore, multiple heat dissipation fins 6 are evenly installed inside the first ventilation duct 3 and the second ventilation duct 4, and are positioned close to the interior of the shielded enclosure 1. The heat dissipation fins 6 can conduct heat dissipated by the shielded enclosure 1. When air flows through the interior of the ventilation ducts, the heat dissipation fins 6 can also achieve additional heat dissipation through air convection, thereby further improving the heat dissipation performance of the equipment inside the shielded enclosure 1. Multiple baffles 7 are evenly installed inside the first ventilation duct 3 and the second ventilation duct 4, and are positioned away from the interior of the shielded enclosure 1, spaced apart from the heat dissipation fins 6. Through the cooperation of the baffles 7 and the heat dissipation fins 6, a combined... The labyrinthine shielding structure inside the paired ventilation ducts ensures airflow within the shielded enclosure 1 to enhance heat dissipation while effectively suppressing electromagnetic wave leakage, thus maintaining excellent electromagnetic shielding performance. This allows the shielded enclosure to exhibit superior stability and reliability in practical use. It should be noted that the first ventilation duct 3 connects the bottom side wall and bottom inner wall of the shielded enclosure 1 to guide external air into the enclosure. The second ventilation duct 4 connects the top side wall and top inner wall of the shielded enclosure 1 to facilitate airflow between the enclosure and the outside, further optimizing heat dissipation while meeting electromagnetic shielding requirements.

[0025] refer to Figure 1 and Figure 2 As shown, the shielding enclosure 1 includes a rectangular box 101. A first ventilation duct 3 is opened at the bottom of the inner wall of the rectangular box 101, and a second ventilation duct 4 is opened at the top of the inner wall of the rectangular box 101. The upper surface of the cooling fan 5 is fixedly connected to the top of the inner wall of the rectangular box 101. A protective cover 102 is bolted to one side of the rectangular box 101, and a conductive rubber sealing strip 103 is provided between the contact surfaces of the rectangular box 101 and the protective cover 102.

[0026] In the specific implementation process, the protective cover 102 can be disassembled and installed as needed, which facilitates personnel to inspect and maintain the equipment installed inside the rectangular box 101. When the protective cover 102 is installed between the rectangular box 101 and the rectangular box 101, the conductive rubber sealing strip 103 can improve the sealing effect at the connection between the protective cover 102 and the rectangular box 101.

[0027] refer to Figure 1 , Figure 3 and Figure 4 As shown, a limiting strip 8 is uniformly fixedly connected to the side of the rectangular box 101 away from the protective cover 102, and the limiting strip 8 is located between the first ventilation duct 3 and the second ventilation duct 4.

[0028] In the specific implementation process, when the rectangular box 101 is placed against the plane, the limiting strip 8 can restrict the position between the side wall of the rectangular box 101 and the plane, thereby ensuring the ventilation of the first ventilation duct 3 and the second ventilation duct 4.

[0029] refer to Figure 1 , Figure 2 and Figure 4 As shown, two mounting frames 9 are provided on the side of the rectangular box 101 away from the protective cover 102. The two mounting frames 9 are located on the side of the first ventilation duct 3 and the second ventilation duct 4 respectively. A protective net 10 is provided inside the mounting frame 9.

[0030] In the specific implementation process, the protective net 10 can be installed on one side of the ventilation duct through the installation frame 9, so that the protective net 10 can play a certain protective and filtering role for the ventilation duct to prevent foreign objects from entering through the ventilation duct.

[0031] refer to Figure 2 and Figure 3 As shown, a rectangular protective frame 13 is fixedly connected to the top of the inner wall of the rectangular box 101. The cooling fan 5 is located inside the rectangular protective frame 13. A safety net 2 is fixedly connected to the inner wall of the rectangular protective frame 13. The safety net 2 is located below the cooling fan 5.

[0032] In the specific implementation process, the rectangular protective frame 13 and the safety net 2 are used together to cover the cooling fan 5, thereby providing a certain degree of protection for the cooling fan 5 and preventing the cooling fan 5 from being bumped by the operator during inspection and maintenance.

[0033] refer to Figure 2 and Figure 4 As shown, a plurality of female magnetic strips 11 are fixedly connected to the side of the rectangular box 101 away from the protective cover 102. The plurality of female magnetic strips 11 are located on one side of the first ventilation duct 3 and the second ventilation duct 4 respectively. A male magnetic strip 12 is fixedly connected to the side of the mounting frame 9 close to the rectangular box 101. The male magnetic strip 11 is magnetically connected to one side of the female magnetic strip 12.

[0034] In the specific implementation process, by cooperating with the mother magnetic strip 11, the mounting frame 9 can be magnetically installed on one side of the rectangular box 101, which makes it easy for personnel to disassemble the mounting frame 9 and thus facilitates the cleaning of the protective net 10.

[0035] The working principle of the shielded enclosure provided by this utility model is as follows:

[0036] In use, the first ventilation duct 3 is opened on the bottom side wall and bottom inner wall of the shielded enclosure 1, and the second ventilation duct 4 is opened on the top side wall and top inner wall of the shielded enclosure 1. The cooling fan 5 is fixedly installed on the top of the inner wall of the shielded enclosure 1 with bolts. The cooling fan 5 is started to allow the outside air to enter the interior of the shielded enclosure 1 through the first ventilation duct 3, while the air inside the shielded enclosure 1 is discharged to the outside through the second ventilation duct 4, so as to accelerate the air circulation speed inside the shielded enclosure 1 and enhance the heat dissipation effect of the equipment inside the shielded enclosure 1.

[0037] Multiple heat dissipation fins 6 are evenly installed inside the first ventilation duct 3 and the second ventilation duct 4, and are positioned close to the interior of the shielded enclosure 1. The heat dissipation fins 6 conduct heat dissipated by the shielded enclosure 1. When air flows through the interior of the ventilation ducts, the heat dissipation fins 6 can also achieve additional heat dissipation through air convection, thereby further improving the heat dissipation performance of the equipment inside the shielded enclosure 1. Multiple baffles 7 are evenly installed inside the first ventilation duct 3 and the second ventilation duct 4, and are positioned away from the interior of the shielded enclosure 1 and spaced apart from the heat dissipation fins 6. Through the cooperation of the baffles 7 and the heat dissipation fins 6, a labyrinthine shielding structure can be formed inside the ventilation ducts. This ensures airflow inside the shielded enclosure 1 to enhance heat dissipation while effectively suppressing electromagnetic wave leakage, thus maintaining good electromagnetic shielding performance. This allows the shielded enclosure to have better stability and reliability in actual use.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A shielded enclosure, characterized in that, include: The shielded enclosure (1) has a first ventilation duct (3) at the bottom of its inner wall and a second ventilation duct (4) at the top of its inner wall. A cooling fan (5) is fixedly installed on the top of the inner wall of the shielded enclosure (1) and located below the second ventilation duct (4); and The heat dissipation fins (6) and the shielding plates (7) are provided in a plurality of manner. The plurality of heat dissipation fins (6) are evenly distributed inside the first ventilation channel (3) and the second ventilation channel (4). The plurality of heat dissipation fins (6) are arranged close to the interior of the shielding enclosure (1). The shielding plates (7) are provided in a plurality of manner. The plurality of shielding plates (7) are evenly distributed inside the first ventilation channel (3) and the second ventilation channel (4). The plurality of shielding plates (7) are arranged away from the interior of the shielding enclosure (1). Each heat dissipation fin (6) is spaced apart from each shielding plate (7).

2. The shielded enclosure according to claim 1, characterized in that, The shielding enclosure (1) includes a rectangular box (101), the first ventilation duct (3) is opened at the bottom of the inner wall of the rectangular box (101), the second ventilation duct (4) is opened at the top of the inner wall of the rectangular box (101), the upper surface of the cooling fan (5) is fixedly connected to the top of the inner wall of the rectangular box (101), a protective cover (102) is bolted to one side of the rectangular box (101), and a conductive rubber sealing strip (103) is provided between the contact surfaces of the rectangular box (101) and the protective cover (102).

3. The shielded enclosure according to claim 2, characterized in that, The rectangular box (101) is uniformly fixedly connected to a limiting strip (8) on the side away from the protective cover (102), and the limiting strip (8) is located between the first ventilation duct (3) and the second ventilation duct (4).

4. The shielded enclosure according to claim 2, characterized in that, Two mounting frames (9) are provided on the side of the rectangular box (101) away from the protective cover (102). The two mounting frames (9) are located on the side of the first ventilation duct (3) and the second ventilation duct (4), respectively. A protective net (10) is provided inside the mounting frame (9).

5. The shielded enclosure according to claim 2, characterized in that, A rectangular protective frame (13) is fixedly connected to the top of the inner wall of the rectangular box (101). The cooling fan (5) is located inside the rectangular protective frame (13). A safety net (2) is fixedly connected to the inner wall of the rectangular protective frame (13). The safety net (2) is located below the cooling fan (5).

6. The shielded enclosure according to claim 4, characterized in that, The rectangular box (101) is fixedly connected to a plurality of female magnetic strips (11) on the side away from the protective cover (102). The plurality of female magnetic strips (11) are located on one side of the first ventilation duct (3) and the second ventilation duct (4). The mounting frame (9) is fixedly connected to a sub-magnetic strip (12) on the side close to the rectangular box (101). The side of the sub-magnetic strip (12) is magnetically connected to one side of the female magnetic strip (11).

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