Anti-electromagnetic interference communication case

Abstract

The utility model discloses an anti-electromagnetic interference communication cabinet, and relates to the technical field of communication cabinets. Comprising a box body, the front face of the box body is connected with a double door through a hinge, shielding pads are embedded in the edges of the double door, ventilation grooves are formed in the middles of the two sides of the box body, and mounting frames are arranged on the inner sides of the ventilation grooves; the heat dissipation assembly is installed on the installation frame through the installation assembly and used for conducting heat dissipation on the communication box body; and the shielding assembly is arranged in the ventilation slot and is used for electromagnetic shielding in the ventilation slot. According to the anti-electromagnetic interference communication case, the heat dissipation assemblies are installed in the ventilation grooves of the case body through the installation frames, the fans on the two heat dissipation assemblies are matched to improve the heat dissipation effect of the case body, the heat dissipation assemblies are installed on the installation frames through the installation assemblies, heat dissipation fans on the heat dissipation assemblies can be rapidly disassembled and replaced when going wrong, and the heat dissipation effect of the case body is improved. And the heat dissipation efficiency of the box body is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of communication chassis technology, specifically to a communication chassis that is resistant to electromagnetic interference. Background Technology

[0002] The telecommunications industry requires a large number of communication enclosures. These enclosures provide a support platform and protection for various components, modules, and communication units. Inside the enclosure are various communication devices. When these devices are operating, they generate significant heat and radiate electromagnetic waves, interfering with nearby equipment. Furthermore, electromagnetic waves in the surrounding environment can also affect the operation of the communication devices within the enclosure. To prevent electromagnetic interference, the outer shell of communication enclosures is typically made of materials with good electrical conductivity, such as steel or aluminum, because metals offer good electromagnetic shielding. However, gaps inevitably appear during the manufacturing process of communication enclosures, and due to the need for heat dissipation, the enclosure also has many holes, leading to electromagnetic wave leakage.

[0003] Utility model patent CN 210008055 U discloses a communication enclosure for electromagnetic interference protection, comprising an enclosure body and an enclosure door. The back of the enclosure body is a honeycomb waveguide plate. The enclosure body is equipped with fan mounting rods, and a fan is mounted on the fan mounting rods. An exhaust area is provided between the fan mounting rods, and the exhaust area connects to the honeycomb waveguide plate. The honeycomb waveguide plate can meet both electromagnetic shielding and ventilation requirements. The rotation of the fan exhausts hot air from inside the enclosure to the outside, achieving a ventilation effect.

[0004] The aforementioned utility model uses a fan and a honeycomb waveguide plate for heat dissipation and electromagnetic shielding, which to some extent compensates for the lack of electromagnetic shielding at the ventilation opening. However, the aforementioned utility model fixes the fan mounting rod to the enclosure, making it inconvenient to disassemble and replace the fan after it is damaged, thus reducing the heat dissipation efficiency of the enclosure. Furthermore, the aforementioned device only uses a honeycomb waveguide plate for electromagnetic shielding and ventilation. On the one hand, external dust can easily adhere to the inner wall of the honeycomb waveguide plate. On the other hand, the electromagnetic shielding effect of the honeycomb waveguide plate alone is generally not good enough to meet the requirements of the communication enclosure. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a communication chassis that is resistant to electromagnetic interference, thus solving the existing problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a communication chassis resistant to electromagnetic interference, comprising:

[0007] The enclosure has a double door connected to the front by a hinge. The edges of the double door are inlaid with shielding pads. Ventilation slots are provided in the middle of both sides of the enclosure, and mounting brackets are provided on the inner side of the ventilation slots.

[0008] A heat dissipation assembly, which is mounted on a mounting bracket via a mounting component, is used to dissipate heat from the communication enclosure;

[0009] A shielding component is disposed within a ventilation slot for electromagnetic shielding within the ventilation slot, while not hindering ventilation and heat dissipation.

[0010] Preferably, the heat dissipation assembly includes a fan frame, on which multiple symmetrically distributed mounting components are fixed. The fan frame is mounted on a mounting bracket via the mounting components. A heat dissipation fan is mounted on the fan frame, and a protective mesh cover is provided on the outside of the heat dissipation fan.

[0011] Preferably, the mounting assembly includes two symmetrically distributed fixed plates fixed to the fan frame, a movable plate disposed between the two fixed plates, a limit plate fixed to one end of the movable plate, the limit plate being snapped into the mounting bracket, and the other end of the movable plate being connected to the fan frame via a spring.

[0012] Preferably, the fixed plate has a linear slot, and both sides of the movable plate are fixed with screws. One end of the screw passes through the linear slot, and the outer side of one end of the screw is connected to a limit nut through internal and external threads.

[0013] Preferably, the shielding assembly includes an mounting plate attached to the outer wall of the enclosure, a metal mesh plate is fixed to the inner side of the mounting plate, a foamed metal plate is fixed to one side of the metal mesh plate, and a honeycomb waveguide plate is fixed to one side of the foamed metal plate. The metal mesh plate, the foamed metal plate, and the honeycomb waveguide plate are all disposed in the ventilation slot.

[0014] Preferably, the mounting plate has a slot on its outer side, a filter screen plate is inserted into the slot, and grooves are formed on the inner walls of both sides of the upper end of the slot. A limiting plate is set in the groove, and a lever is connected to one end of the limiting plate through a connecting block. The lever is located on the outer wall of the mounting plate. Beneficial effects

[0015] This invention provides a communication chassis that resists electromagnetic interference. Compared with the prior art, it has the following advantages:

[0016] 1. This electromagnetic interference resistant communication chassis has heat dissipation components installed in the ventilation slots of the chassis via mounting brackets. The fans on the two heat dissipation components work together to improve the heat dissipation effect of the chassis. The heat dissipation components are mounted on the mounting brackets via mounting components, so that the heat dissipation fans on the heat dissipation components can be quickly disassembled and replaced if there is a problem, without affecting the heat dissipation efficiency of the chassis.

[0017] 2. This electromagnetic interference-resistant communication chassis features a shielding component installed within the ventilation slots of the chassis. The metal mesh plate, foamed metal plate, and honeycomb waveguide plate on the shielding component work together to improve the electromagnetic shielding effect without affecting the ventilation slots. A filter plate is inserted into the slot of the mounting plate. The filter plate can filter out dust in the air, preventing dust from adhering to the metal mesh plate, foamed metal plate, and honeycomb waveguide plate. The filter plate is designed to be detachable, making it easy to disassemble, replace, and clean without affecting the heat dissipation of the chassis. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the box structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the heat dissipation component of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the back of the shielding component structure of this utility model;

[0023] Figure 6 This is a front view of the shielding component structure of this utility model.

[0024] In the diagram: 1. Enclosure 11. Door 11. Shielding pad 12. Ventilation slot 13. Mounting bracket 14. Heat dissipation assembly 2. Fan frame 21. Heat dissipation fan 22. Mounting assembly 23. Fixing plate 231. Movable plate 232. Limiting plate 233. Spring 234. Linear slot 235. Screw 236. Limiting nut 237. Shielding assembly 3. Mounting plate 31. Metal mesh plate 32. Foamed metal plate 33. Honeycomb waveguide plate 34. Slot 35. Filter plate 36. Groove 37. Limiting plate 38. Paddle 39. Detailed Implementation

[0025] 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.

[0026] This utility model provides two technical solutions:

[0027] Figure 1-4The first embodiment is shown: an electromagnetic interference resistant communication enclosure, including enclosure 1, the front of enclosure 1 is connected to a double door by a hinge, both enclosure 1 and the double door are made of metal material and have a certain electromagnetic shielding effect, the edges of the double door are inlaid with shielding pads 12, which play a certain shielding role, ventilation slots 13 are provided in the middle of both sides of enclosure 1, and mounting brackets 14 are provided on the inner side of ventilation slots 13;

[0028] The heat dissipation component 2 is mounted on the mounting frame 14 via mounting components 23 and is used to dissipate heat from the communication box 1. The heat dissipation component 2 includes a fan frame 21, on which multiple symmetrically distributed mounting components 23 are fixed. The fan frame 21 is mounted on the mounting frame 14 via mounting components 23. A heat dissipation fan 22 is mounted on the fan frame 21. The heat dissipation fan 22 plays a role in ventilation and heat dissipation. A protective mesh cover is provided on the outside of the heat dissipation fan 22 for protection.

[0029] Specifically, the mounting assembly 23 includes two symmetrically distributed fixed plates 231 fixed on the fan frame 21. A movable plate 232 is provided between the two fixed plates 231. A limit plate 233 is fixed to one end of the movable plate 232 and is engaged with the mounting frame 14. The other end of the movable plate 232 is connected to the fan frame 21 via a spring 234. The spring 234 allows the movable plate 232 to automatically engage the limit plate 233 with the mounting frame 14. A linear slot 235 is provided on the fixed plate 231. Screws 236 are fixed on both sides of the movable plate 232. One end of the screw 236 passes through the linear slot 235. A limit nut 237 is connected to the outer side of one end of the screw 236 via internal and external threads. The limit nut 237 cooperates with the screw 236 to limit the engagement, making the limit plate 233 engage stably, thereby making the fan frame 21 stably installed.

[0030] Figure 1 and 5-6 illustrates the second embodiment, the main difference from the first embodiment being: it includes a shielding component 3, which is disposed within the ventilation slot 13 for electromagnetic shielding within the ventilation slot 13, while not hindering ventilation and heat dissipation. The shielding component 3 includes a mounting plate 31 attached to the outer wall of the housing 1. A metal mesh plate 32 is fixed to the inner side of the mounting plate 31. The metal mesh plate 32 is formed by sandwiching three layers of aluminum wire mesh into a sturdy stretched metal frame, providing a certain shielding effect. A foamed metal plate 33 is fixed to one side of the metal mesh plate 32. The foamed metal plate 33 is a ventilation shielding plate made by combining foamed metal and Monel wire mesh through a special process. A honeycomb waveguide plate 34 is fixed to one side of the foamed metal plate 33. The honeycomb waveguide plate 34 is made of steel and has a good ventilation shielding effect. The metal mesh plate 32, the foamed metal plate 33, and the honeycomb waveguide plate are all present. All three components 34 are housed within the ventilation slot 13. The metal mesh plate 32, foamed metal plate 33, and honeycomb waveguide plate 34 work together to achieve excellent ventilation and shielding effects. A slot 35 is provided on the outer side of the mounting plate 31, into which a filter plate 36 is inserted. The filter plate 36 filters dust, preventing dust from adhering to the metal mesh plate 32, foamed metal plate 33, and honeycomb waveguide plate 34. Grooves 37 are provided on the inner walls of both sides of the upper end of the slot 35. A limiting plate 38 is provided in the groove 37. The limiting plate 38 can limit the filter plate 36, making the filter plate 36 installed stably. One end of the limiting plate 38 is connected to a lever 39 via a connecting block. The lever 39 is located on the outer wall of the mounting plate 31. The lever 39 can move the limiting plate 38, releasing the limiting of the filter plate 36, making the filter plate 36 easy to disassemble, clean, and replace.

[0031] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0032] In use, the cooling fans 22 on the heat dissipation components 2 on both sides of the housing 1 are started. The two cooling fans 22 are the inlet fan and the outlet fan, respectively, achieving air circulation and improving the heat dissipation effect of the housing 1. The metal mesh plate 32, foamed metal plate 33 and honeycomb waveguide plate 34 in the ventilation slot 13 work together to achieve a good ventilation and shielding effect. When the fan needs to be replaced, the movable plate 232 is moved until the limit plate 233 on the movable plate 232 is separated from the mounting bracket 14. At this time, the fan frame 21 can be removed, and the fan on it can be repaired and replaced. When replacing the cooling fan 22, the movable plate 232 is moved outward until the limit plates 233 on the two symmetrical movable plates 232 are moved to the outside of the two mounting brackets 14, and then the limit plates are removed. The plate 233 is moved to the mounting bracket 14, the movable plate 232 is released, and the limiting plate 233 is engaged with the mounting bracket 14 under the action of the spring 234, thus installing the fan frame 21. Then, the limiting nut 237 is turned until it contacts the outer side of the fixed plate 231, which plays a damping and limiting role, limiting the movable plate 232, thereby making the limiting plate 233 stably engaged on the mounting bracket 14, ensuring the stable operation of the cooling fan 22. After a period of use, the filter plate 36 is moved by the lever 39 to move the limiting plate 38 until the limiting plate 38 moves into the groove 37. At this time, the filter plate 36 is moved upward until it separates from the slot 35, at which point the filter plate 36 can be disassembled and replaced.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] 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 communication chassis with anti-electromagnetic interference, characterized in that ,include: A box body, wherein a double door is connected to the front of the box body through a hinge, the edges of the double door are inlaid with shielding pads, ventilation slots are opened in the middle of both sides of the box body, and a mounting frame is arranged inside the ventilation slot; A heat dissipation component, which is mounted on a mounting frame through a mounting component and is used to dissipate heat from a communication box; The shielding component is arranged in the ventilation slot and is used for electromagnetic shielding in the ventilation slot without hindering ventilation and heat dissipation.

2. The electromagnetic interference resistant communication chassis according to claim 1, characterized in that: The heat dissipation component includes a fan rack, on which a plurality of symmetrically distributed mounting components are fixed, the fan rack is arranged on the mounting frame through the mounting components, a heat dissipation fan is installed on the fan rack, and a protective mesh cover is arranged on the outer side of the heat dissipation fan.

3. The electromagnetic interference resistant communication chassis according to claim 1, characterized in that: The mounting assembly includes two symmetrically distributed fixed plates fixed on the fan frame, a movable plate is arranged between the two fixed plates, a limiting clamping plate is fixed to one end of the movable plate, the limiting clamping plate is connected to the mounting frame by clamping, and the other end of the movable plate is connected to the fan frame through a spring.

4. The electromagnetic interference resistant communication chassis according to claim 3, characterized in that: A linear slot is formed on the fixed plate, and screw rods are fixed on both sides of the movable plate. One end of the screw rod passes through the linear slot, and the outer side of one end of the screw rod is connected to a limiting nut through internal and external threads.

5. The electromagnetic interference resistant communication chassis according to claim 1, characterized in that: The shielding assembly includes a mounting plate attached to the outer wall of the box body, a metal mesh plate is fixed to the inner side of the mounting plate, a foamed metal plate is fixed to one side of the metal mesh plate, a honeycomb waveguide plate is fixed to one side of the foamed metal plate, and the metal mesh plate, the foamed metal plate and the honeycomb waveguide plate are all arranged in the ventilation groove.

6. The electromagnetic interference resistant communication chassis according to claim 5, characterized in that: A slot is provided on the outer side of the mounting plate, a filter screen is inserted into the slot, grooves are provided on the inner walls on both sides of the upper end of the slot, a limit plate is provided in the groove, one end of the limit plate is connected to a paddle via a connecting block, and the paddle is located on the outer side wall of the mounting plate.

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