Mine communication device

Abstract

The utility model provides a kind of mine communication device, mine communication device includes: electromagnetic protection shell, with containing cavity, electromagnetic protection shell is provided with air inlet and air outlet, air inlet and air outlet are communicated with containing cavity;Communication equipment is set in containing cavity;Radiating component is set on electromagnetic protection shell, and radiating component includes fan, and fan is used to drive gas to flow from air inlet to air outlet;Purging structure is set on electromagnetic protection shell, and purging structure is correspondingly set with air outlet, and purging structure has air inlet and air outlet, air inlet is communicated with air outlet, and air outlet is located outside containing cavity, and it is towards the outer surface of electromagnetic protection shell, to blow off the impurity of the outer surface of electromagnetic protection shell.The technical scheme provided by the utility model can solve the problem that the surface of shielding cover of communication module in underground of prior art is easy to accumulate dust, which affects the heat dissipation inside.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic shielding technology, and more specifically, to a communication device for mining. Background Technology

[0002] In existing technologies, mine communication equipment, especially those integrating 5G communication modules, is typically encapsulated in shielding enclosures designed specifically for the underground environment. This design aims to protect communication signals from interference from the complex electromagnetic environment underground, while ensuring stable operation of the equipment under harsh conditions.

[0003] However, the dusty and harsh environment inside mines inevitably causes a large amount of dust and impurities to accumulate on the surface of the shielding cover after prolonged operation. This accumulation can easily affect heat dissipation from the communication equipment inside the shielding cover, leading to overheating and short circuits, thus impacting the equipment's stability and lifespan. Utility Model Content

[0004] This invention provides a communication device for mining, which solves the problem that dust easily accumulates on the surface of the shielding cover of underground communication modules in the prior art, affecting the dissipation of internal heat.

[0005] This utility model provides a mining communication device, which includes: an electromagnetic protective shell having a receiving cavity, an air inlet and an air outlet on the electromagnetic protective shell, both of which are connected to the receiving cavity; a communication device disposed within the receiving cavity; a heat dissipation assembly disposed on the electromagnetic protective shell, the heat dissipation assembly including a fan for driving gas to flow from the air inlet to the air outlet; and a purging structure disposed on the electromagnetic protective shell, the purging structure being correspondingly disposed to the air outlet, the purging structure having an air inlet and an air outlet, the air inlet and the air outlet being connected, the air outlet being located outside the receiving cavity and facing the outer surface of the electromagnetic protective shell, in order to purge impurities from the outer surface of the electromagnetic protective shell.

[0006] Furthermore, the purging structure includes an exhaust hood, which is disposed on the outer surface of the electromagnetic protective shell and covers the air outlet. The air inlet is disposed on the side of the exhaust hood near the electromagnetic protective shell, and the air outlet is disposed on the side wall of the exhaust hood. The exhaust hood has a flow cavity. The purging structure has multiple air outlets. The air inlet and multiple air outlets are disposed on the exhaust hood and communicate with the flow cavity. The blowing direction of the air outlets is towards the outer surface of the electromagnetic protective shell.

[0007] Furthermore, multiple air outlets are arranged on both sides of the exhaust hood in the width direction and spaced apart along the length direction of the exhaust hood.

[0008] Furthermore, the purging structure is located at the top of the electromagnetic protective shell, and the air inlet is located at the bottom of the purging structure. The top of the electromagnetic protective shell has an arc-shaped structure, and the bottom wall of the purging structure is in close contact with the top of the electromagnetic protective shell.

[0009] Furthermore, the purging structure also includes a flow divider, which is disposed within the flow cavity and can drive the gas to flow in different directions after entering the flow cavity.

[0010] Furthermore, the inner wall of the exhaust hood away from the electromagnetic protection shell is provided with a diversion protrusion, which is corresponding to the air inlet. Both the diversion protrusion and the air inlet are located in the middle of the exhaust hood along its length. The diversion protrusion passes through the air inlet and extends into the air outlet to divide the flow cavity into two flow sections. The diversion protrusion divides the air outlet into two exhaust ports, and the two exhaust ports are respectively connected to the two flow sections one by one.

[0011] Furthermore, the mining communication device also includes a cleaning component, which is mounted on the electromagnetic protective shell. The cleaning component includes a drive unit and a cleaning unit. The cleaning unit is positioned corresponding to the air inlet and is located outside the receiving cavity. It is movably mounted on the outer surface of the electromagnetic protective shell. The drive unit is driven to connect with the cleaning unit to drive the cleaning unit to clean the outer surface of the electromagnetic protective shell.

[0012] Furthermore, the cleaning unit includes a brush and a brush plate. The brush plate is rotatably mounted on the outer wall of the electromagnetic protective shell, and the brush is mounted on the side of the brush plate facing the electromagnetic protective shell. The end of the brush away from the brush plate abuts against the outer wall of the electromagnetic protective shell.

[0013] Furthermore, the electromagnetic protective shell is provided with multiple air inlets, which are distributed on both sides of the electromagnetic protective shell. The cleaning assembly includes two cleaning parts, which are respectively arranged on both sides of the electromagnetic protective shell. The drive unit includes a motor and a transmission assembly. The motor is located at the bottom of the electromagnetic protective shell and has an output end. The transmission assembly is located between the drive unit and the two cleaning parts. The output end is driven and connected to the transmission assembly. The transmission assembly is driven and connected to the two cleaning parts respectively to drive the two cleaning parts to clean the side walls on both sides of the electromagnetic protective shell.

[0014] Furthermore, the transmission assembly includes: a transmission rod rotatably disposed at the bottom of the electromagnetic protective shell, with both ends of the transmission rod connected to the ends of the two cleaning parts near the transmission rod, and the extension direction of the transmission rod being the same as the extension direction of the output end; a first gear sleeved on the outer circumference of the output end and rotating synchronously with the output end; and a second gear sleeved on the outer circumference of the transmission rod, the second gear meshing with the first gear, and the transmission rod rotating synchronously with the second gear.

[0015] By applying the technical solution of this utility model, a blowing structure is set on the electromagnetic protective shell. The fan of the heat dissipation component drives the gas flow, guiding the gas from the air outlet to the blowing structure, and then blowing it onto the outer surface of the electromagnetic protective shell through the air outlet. This achieves the blowing away of impurities on the outer surface of the electromagnetic protective shell, preventing the accumulation of dust and other impurities on the electromagnetic protective shell, ensuring the heat dissipation effect of the heat dissipation component, reducing the possibility of short circuits caused by overheating inside, ensuring the normal operation of the communication equipment, and extending the service life of the communication equipment. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A partial cross-sectional view of the mining communication device provided by this utility model is shown;

[0018] Figure 2 A schematic diagram of the structure of the mining communication device provided by this utility model is shown;

[0019] Figure 3 A top-view structural schematic diagram of the mining communication device provided by this utility model is shown.

[0020] Figure 4 A schematic diagram of the purging structure provided by this utility model is shown;

[0021] Figure 5 A schematic diagram of the cleaning assembly provided by this utility model is shown.

[0022] The above figures include the following reference numerals:

[0023] 10. Electromagnetic shielding housing; 101. Receiving cavity; 11. Air inlet; 12. Air outlet; 13. Mounting bracket; 14. Cover door; 15. Sliding window panel;

[0024] 20. Communication equipment;

[0025] 30. Heat dissipation components; 31. Fan; 32. Bracket; 33. Temperature controller; 34. Air duct;

[0026] 40. Purge structure; 42. Air outlet; 43. Exhaust hood; 44. Flow divider;

[0027] 50. Sweeping assembly; 51. Drive unit; 511. Motor; 512. Transmission rod; 513. First gear; 514. Second gear; 52. Sweeping unit; 521. Brush; 522. Brush plate; 53. Timer controller;

[0028] 60. Perforated fixing plate; 61. Fixing block;

[0029] 70. Dehumidifier box. Detailed Implementation

[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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0031] like Figures 1 to 5 As shown, this embodiment of the present invention provides a mining communication device, which includes: an electromagnetic protective shell 10, a communication device 20, a heat dissipation assembly 30, and a purging structure 40. The electromagnetic protective shell 10 has a receiving cavity 101, and an air inlet 11 and an air outlet 12 are provided on the electromagnetic protective shell 10, both of which are connected to the receiving cavity 101. The communication device 20 is disposed within the receiving cavity 101. The heat dissipation assembly 30 is disposed on the electromagnetic protective shell 10, and includes a fan 31 for driving gas to flow from the air inlet 11 to the air outlet 12. The purging structure 40 is disposed on the electromagnetic protective shell 10, corresponding to the air outlet 12, and has an air inlet 42 connected to the air outlet 12. The air outlet 42 is located outside the receiving cavity 101 and faces the outer surface of the electromagnetic protective shell 10 to purge impurities from the outer surface of the electromagnetic protective shell 10.

[0032] By applying the technical solution of this utility model, a blowing structure 40 is set on the electromagnetic protective shell 10. The fan of the heat dissipation component 30 drives the gas flow, guiding the gas from the air outlet 12 to the blowing structure 40, and then blowing it onto the outer surface of the electromagnetic protective shell 10 through the air outlet 42. This achieves the blowing away of impurities on the outer surface near the air outlet 12 of the electromagnetic protective shell 10, preventing the accumulation of dust and other impurities on the electromagnetic protective shell 10, ensuring the heat dissipation effect of the heat dissipation component 30, reducing the possibility of short circuits caused by overheating, ensuring the normal operation of the communication equipment 20, and extending the service life of the communication equipment 20.

[0033] Among them, the communication equipment 20 is a 5G communication module designed specifically for underground environments. It is mainly used to realize 5G network communication in underground spaces such as mines. Through the 5G network, functions such as high-definition video monitoring, real-time data transmission, and remote control can be realized.

[0034] In this application, filters are installed at the air outlet 42, air inlet 11 and air outlet 12 to prevent external dust from entering the mining communication device and causing blockage of internal components.

[0035] like Figure 1 As shown, the heat dissipation assembly 30 also includes a bracket 32, a temperature controller 33, and an air duct 34. A fan 31 is fixed to the bracket 32, which is located on top of the electromagnetic shielding housing 10, above the communication equipment 20. The temperature controller 33 is electrically connected to the fan 31 and can detect the temperature inside the containment cavity 101, controlling the start and stop of the fan 31 according to temperature changes. The air duct 34 is located between the fan 31 and the air outlet 12 to guide the gas.

[0036] Furthermore, a perforated fixing plate 60 is also provided inside the receiving cavity 101, and the communication device 20 is mounted on the perforated fixing plate 60. The perforated design can ensure that the gas inside the receiving cavity 101 flows more smoothly and improve the heat dissipation effect.

[0037] The electromagnetic shielding shell 10 has a hinged door 14 on its front surface, and the upper end of the door 14 is fixedly connected to the electromagnetic shielding shell 10 by fasteners. A sliding window 15 is provided on the front end face of the door 14. The sliding window 15 can be pushed to view and control the communication equipment 20 inside the electromagnetic shielding shell 10.

[0038] like Figures 2 to 4 As shown, the purging structure 40 includes an exhaust hood 43, which is disposed on the outer surface of the electromagnetic protective shell 10 and covers the air outlet 12. The exhaust hood 43 does not cover the entire side wall of the electromagnetic protective shell 10, thus avoiding internal overheating or affecting the purging effect. An air inlet is disposed on the side of the exhaust hood 43 closest to the electromagnetic protective shell 10, and an air outlet 42 is disposed on the side wall of the exhaust hood 43. The exhaust hood 43 has a flow cavity. The purging structure 40 has multiple air outlets 42, both the air inlet and the multiple air outlets 42 are disposed on the exhaust hood 43 and communicate with the flow cavity. The air blowing direction of the air outlets 42 is towards the outer surface of the electromagnetic protective shell 10. Guiding the gas from the air outlet 12 to the multiple air outlets 42 expands the cleaning range of the purging structure 40, enhances the purging effect, and allows the gas to flow more evenly within the flow cavity, thereby improving the cleaning efficiency of the purging structure 40 and avoiding the incomplete cleaning problems that may occur with unidirectional airflow.

[0039] The multiple air outlets 42 can be set in any direction on the side wall of the exhaust hood 43, and the distribution of the air outlets 42 can be selected according to the purging requirements.

[0040] Furthermore, multiple air outlets 42 are arranged on both sides of the exhaust hood 43 in the width direction and spaced apart along the length direction of the exhaust hood 43. This arrangement allows the gas to uniformly cover the outer surface of the electromagnetic protective shell 10, improving the cleaning effect and creating a covering sweeping effect on the outer surface of the electromagnetic protective shell 10, enhancing the cleaning capability of the sweeping structure 40, avoiding incomplete cleaning in certain areas, and reducing sweeping dead zones.

[0041] like Figure 3 As shown, the X direction is the length direction of the exhaust hood 43, and the Y direction is the width direction of the exhaust hood 43.

[0042] Specifically, the blowing structure 40 is located at the top of the electromagnetic protective shell 10, and the air inlet is located at the bottom of the blowing structure 40. The top of the electromagnetic protective shell 10 has an arc-shaped structure, which makes it less likely for dust and impurities to accumulate. Some dust will slide off along the arc-shaped surface. The bottom wall of the blowing structure 40 is in close contact with the top of the electromagnetic protective shell 10. This prevents gas from leaking out through the gap between the bottom wall of the blowing structure 40 and the top of the electromagnetic protective shell 10 after being discharged from the air outlet 12, or prevents dust from entering the interior of the electromagnetic protective shell 10 through the aforementioned gap. This allows the airflow of the blowing structure 40 to flow along the surface of the electromagnetic protective shell 10, ensuring that impurities on the top of the electromagnetic protective shell 10 are effectively blown away, forming an effective cleaning path.

[0043] like Figure 1 and Figure 4 As shown, the purging structure 40 also includes a flow divider 44, which is disposed within the flow cavity. The flow divider 44 can drive the gas to flow in different directions after entering the flow cavity. By utilizing the structural design of the flow divider 44, the flow path of the airflow is changed, causing the airflow to form multi-directional flow within the flow cavity. This achieves uniform airflow distribution, allowing the gas to flow more quickly to the outlets 42 in different directions, thus enhancing the cleaning capability of the purging structure 40.

[0044] In this application, the diverter 44 can be a diverter, a guide bump, a guide groove, or a multi-port pipe, etc.

[0045] Specifically, the inner wall of the exhaust hood 43, away from the electromagnetic shielding shell 10, is provided with a diversion protrusion. This diversion protrusion corresponds to the air inlet and is located at the middle of the exhaust hood along its length. The diversion protrusion passes through the air inlet and extends into the air outlet 12, dividing the flow cavity into two flow sections. The diversion protrusion also divides the air outlet 12 into two exhaust ports, each corresponding to one of the two flow sections. This allows gas to enter the different flow sections more quickly and evenly, avoiding flow chaos and collisions that reduce gas velocity. It also prevents excessive kinetic energy consumption that could lead to a decrease in velocity, allowing the gas to exit from the air outlet 42 at a faster speed, thus cleaning dust and impurities on the electromagnetic shielding shell 10 and improving the cleaning effect.

[0046] In this embodiment, the diversion protrusion extends along the width direction of the exhaust hood 43, and the air inlet is not provided to penetrate the bottom wall of the exhaust hood 43 along the width direction of the exhaust hood 43.

[0047] In other embodiments, the air inlet is disposed through the bottom wall of the exhaust shroud 43 along the width direction of the exhaust shroud 43.

[0048] like Figure 1 As shown, the mining communication device also includes a cleaning assembly 50, which is mounted on the electromagnetic protective shell 10. The cleaning assembly 50 includes a drive unit 51 and a cleaning unit 52. The cleaning unit 52 is correspondingly positioned to the air inlet 11, located outside the receiving cavity 101, and movably mounted on the outer surface of the electromagnetic protective shell 10. The drive unit 51 is driven to clean the outer surface of the electromagnetic protective shell 10 by driving the cleaning unit 52. By driving the cleaning unit 52 to move, the outer surface of the electromagnetic protective shell 10 located at the air inlet 11 is cleaned, preventing dust from accumulating near the air inlet 11 or entering the interior of the electromagnetic protective shell 10 from the air inlet 11. The drive unit 51 improves the convenience of cleaning and enhances the cleaning effect of the electromagnetic protective shell 10.

[0049] When the cleaning section 52 is not working, it will not interfere with the air inlet 11. The cleaning section 52 is located on the side wall of the electromagnetic protective shell 10 on the outer periphery of the air inlet 11 and will not affect the heat dissipation.

[0050] Optionally, the driving method can be rotary cleaning, swing cleaning or linear cleaning. The driving unit 51 can be a power source such as a motor or hydraulic cylinder, and the cleaning unit 52 can be a brush, sponge or rubber.

[0051] like Figure 1As shown, the cleaning unit 52 includes a brush 521 and a brush plate 522. The brush plate 522 is rotatably mounted on the outer wall of the electromagnetic protective housing 10. The brush 521 is located on the side of the brush plate 522 facing the electromagnetic protective housing 10, and the end of the brush 521 away from the brush plate 522 abuts against the outer wall of the electromagnetic protective housing 10. Utilizing the frictional force of the brush 521, dust and impurities on the outer surface of the electromagnetic protective housing 10 can be effectively removed, enhancing the cleaning capability of the cleaning assembly 50.

[0052] Furthermore, the electromagnetic protective shell 10 is provided with multiple spaced air inlets 11, which are distributed on both sides of the electromagnetic protective shell 10 in multiple rows and columns to ensure ventilation. This enhances the heat dissipation effect of the heat dissipation component 30. The cleaning component 50 includes two cleaning parts 52, which are respectively disposed on both sides of the electromagnetic protective shell 10. The drive unit 51 includes a motor 511 and a transmission component. The motor 511 is disposed at the bottom of the electromagnetic protective shell 10 and has an output end. The transmission component is disposed between the drive unit 51 and the two cleaning parts 52, with the output end drivenly connected to the transmission component. The transmission component is drivenly connected to the two cleaning parts 52 to drive the two cleaning parts 52 to clean the side walls of the electromagnetic protective shell 10. The cleaning component 50 includes two cleaning parts 52, each corresponding to one side of the electromagnetic protective shell, and this layout can fully cover the surface of the protective shell. When motor 511 starts, its output drives the cleaning unit 52 to move via a transmission assembly, removing dust and impurities accumulated around the air inlet. Regular automatic cleaning not only maintains the cleanliness of the electromagnetic protective shell, reducing the need for manual maintenance, but also avoids heat dissipation problems caused by dust clogging the air inlet.

[0053] Furthermore, the design of the drive unit 51 and the cleaning unit 52 is more flexible through the configuration of the transmission components, allowing for selection and adjustment based on cleaning needs and installation space.

[0054] In this application, the transmission assembly can be a combination of components such as a gear assembly, a nut and screw, or a lead screw and nut.

[0055] like Figure 1 and Figure 5As shown, the transmission assembly includes a transmission rod 512, a first gear 513, and a second gear 514. The transmission rod 512 is rotatably mounted on the bottom of the electromagnetic protective housing 10 via a fixing block 61. Both ends of the transmission rod 512 are connected to the ends of the two cleaning units 52 near the transmission rod 512. Specifically, both ends of the transmission rod 512 are fixedly connected to the bottom end of the brush plate 522 via screws. The extension direction of the transmission rod 512 is the same as the extension direction of the output end. The first gear 513 is fitted around the outer circumference of the output end and rotates synchronously with it. The second gear 514 is fitted around the outer circumference of the transmission rod 512 and meshes with the first gear 513. The transmission rod 512 rotates synchronously with the second gear 514. The transmission rod 512 and the output end of the motor 511 are on the same straight line. This arrangement ensures that the torque of the motor 511 can be directly and efficiently transmitted to the cleaning unit 52, reducing energy loss during power transmission and making the cleaning action more powerful and precise. The transmission assembly integrates gears and drive rods, all located at the bottom of the electromagnetic shielding housing 10, optimizing space utilization. This layout not only simplifies the equipment structure and reduces unnecessary volume but also facilitates deployment and maintenance in confined mine environments.

[0056] Figure 5 As shown, a timer controller 53 is fixed on the fixed block 61. The timer controller 53 is electrically connected to the motor 511 to control the rotation angle and timer start time of the motor 511.

[0057] like Figure 1 and Figure 3 As shown, a dehumidifier box 70 is also provided at the bottom of the receiving cavity 101, and a mounting bracket 13 is welded to the rear end of the electromagnetic shielding shell 10. The dehumidifier box 70 is used to absorb moisture in the air in the receiving cavity 101 to prevent the humid air in the receiving cavity 101 from affecting the normal operation of the communication equipment 20. The mounting bracket 13 is used to install and fix the electromagnetic shielding shell 10 in the mine.

[0058] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0059] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0060] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0061] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0062] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0063] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A communication device for mining, characterized in that, The mining communication device includes: An electromagnetic protective shell (10) has a receiving cavity (101). An air inlet (11) and an air outlet (12) are provided on the electromagnetic protective shell (10). The air inlet (11) and the air outlet (12) are both connected to the receiving cavity (101). A communication device (20) is disposed within the receiving cavity (101); A heat dissipation assembly (30) is disposed on the electromagnetic protective shell (10). The heat dissipation assembly (30) includes a fan (31) for driving gas to flow from the air inlet (11) to the air outlet (12). A purging structure (40) is provided on the electromagnetic protective shell (10). The purging structure (40) is provided corresponding to the air outlet (12). The purging structure (40) has an air inlet and an air outlet (42). The air inlet is connected to the air outlet (12). The air outlet (42) is located outside the receiving cavity (101) and faces the outer surface of the electromagnetic protective shell (10) to purge impurities from the outer surface of the electromagnetic protective shell (10).

2. The mining communication device according to claim 1, characterized in that, The purging structure (40) includes an exhaust hood (43), which is disposed on the outer surface of the electromagnetic protective shell (10) and covers the air outlet (12). The air inlet is disposed on the side of the exhaust hood (43) close to the electromagnetic protective shell (10). The air outlet (42) is disposed on the side wall of the exhaust hood (43). The exhaust hood (43) has a flow cavity. The purging structure (40) has multiple air outlets (42). The air inlet and multiple air outlets (42) are both disposed on the exhaust hood (43) and communicate with the flow cavity. The blowing direction of the air outlet (42) is towards the outer surface of the electromagnetic protective shell (10).

3. The mining communication device according to claim 2, characterized in that, Multiple air outlets (42) are provided on both sides of the exhaust hood (43) in the width direction and are spaced apart along the length direction of the exhaust hood (43).

4. The mining communication device according to claim 1, characterized in that, The purging structure (40) is located on the top of the electromagnetic protective shell (10), the air inlet is located at the bottom of the purging structure (40), the top of the electromagnetic protective shell (10) is an arc-shaped structure, and the bottom wall of the purging structure (40) is in close contact with the top of the electromagnetic protective shell (10).

5. The mining communication device according to claim 2, characterized in that, The purging structure (40) also includes a flow divider (44), which is disposed in the flow cavity and can drive the gas to flow in different directions after entering the flow cavity.

6. The mining communication device according to claim 5, characterized in that, The inner wall of the exhaust hood (43) away from the electromagnetic protective shell (10) is provided with a diversion protrusion. The diversion protrusion is provided in correspondence with the air inlet. The diversion protrusion and the air inlet are both located in the middle of the exhaust hood (43) along the length direction. The diversion protrusion passes through the air inlet and extends into the air outlet (12) to divide the flow cavity into two flow sections. The diversion protrusion divides the air outlet (12) into two exhaust ports. The two exhaust ports are respectively connected to the two flow sections one by one.

7. The mining communication device according to claim 1, characterized in that, The mining communication device also includes a cleaning component (50), which is disposed on the electromagnetic protective shell (10). The cleaning component (50) includes a driving part (51) and a cleaning part (52). The cleaning part (52) is disposed corresponding to the air inlet (11). The cleaning part (52) is located outside the receiving cavity (101) and is movably disposed on the outer surface of the electromagnetic protective shell (10). The driving part (51) is driven to connect with the cleaning part (52) to drive the cleaning part (52) to clean the outer surface of the electromagnetic protective shell (10).

8. The mining communication device according to claim 7, characterized in that, The cleaning part (52) includes a brush (521) and a brush plate (522). The brush plate (522) is rotatably disposed on the outer side wall of the electromagnetic protective shell (10). The brush (521) is disposed on the side of the brush plate (522) facing the electromagnetic protective shell (10). The end of the brush (521) away from the brush plate (522) abuts against the outer side wall of the electromagnetic protective shell (10).

9. The mining communication device according to claim 7, characterized in that, The electromagnetic protective shell (10) is provided with a plurality of air inlets (11), which are respectively distributed on both sides of the electromagnetic protective shell (10). The cleaning assembly (50) includes two cleaning parts (52), which are respectively disposed on both sides of the electromagnetic protective shell (10). The drive unit (51) includes a motor (511) and a transmission assembly. The motor (511) is located at the bottom of the electromagnetic protective shell (10). The motor (511) has an output end. The transmission assembly is located between the drive unit (51) and the two cleaning units (52). The output end is driven to the transmission assembly. The transmission assembly is driven to the two cleaning units (52) respectively, so as to drive the two cleaning units (52) to clean the side walls on both sides of the electromagnetic protective shell (10).

10. The mining communication device according to claim 9, characterized in that, The transmission assembly includes: A transmission rod (512) is rotatably disposed at the bottom of the electromagnetic protective shell (10). The two ends of the transmission rod (512) are respectively connected to the ends of the two cleaning parts (52) near the transmission rod (512). The extension direction of the transmission rod (512) is the same as the extension direction of the output end. The first gear (513) is sleeved on the outer periphery of the output end and rotates synchronously with the output end; The second gear (514) is sleeved on the outer circumference of the transmission rod (512). The second gear (514) meshes with the first gear (513), and the transmission rod (512) rotates synchronously with the second gear (514).

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