Communication cabinet dust removal device, communication cabinet and communication cabinet heat dissipation and dust removal method

Abstract

The application relates to a communication cabinet dust removal device, a communication cabinet and a communication cabinet heat dissipation and dust removal method. The communication cabinet dust removal device comprises a cabinet body, a dust suction assembly, an air inlet air valve and an inner dustproof net. The inner cavity of the cabinet body comprises a communication equipment containing cavity and an air inlet cavity which are independent of each other. The inner dustproof net is arranged between the communication equipment containing cavity and the air inlet cavity. The dust suction assembly and the air inlet air valve are arranged in the air inlet cavity. A front air window is arranged on the front cabinet door of the cabinet body. The dust suction assembly is arranged behind the front air window and at the bottom of the air inlet cavity. The inner dustproof net is spaced apart from the dust suction assembly. The air inlet air valve is arranged behind the front air window and above the dust suction assembly. The communication cabinet dust removal device of the application automatically and intelligently controls dust removal of the inner dustproof net, and ensures long-term and reliable normal work of a straight-through air system of the communication cabinet.

Description

Technical Field

[0001] This application belongs to the field of communication technology, and in particular relates to a dust removal device for communication cabinets, a communication cabinet, and a method for heat dissipation and dust removal for communication cabinets. Background Technology

[0002] Communication cabinets using fresh air cooling have dustproof devices placed inside the air inlet, forming almost a planar airflow channel. This makes them prone to blockage and difficult to clean, requiring manual cleaning. This is especially problematic in northern regions with frequent and persistent sandstorms, necessitating frequent cleaning.

[0003] Dust filters can only be replaced or cleaned manually by opening the cabinet door, resulting in low maintenance efficiency and high maintenance costs. Summary of the Invention

[0004] The technical problem to be solved by this application is: for existing communication cabinets that use fresh air cooling, the dust filter can only be replaced or cleaned manually by opening the cabinet door, which results in low maintenance efficiency and high maintenance cost. This application provides a dust removal device for communication cabinets, a communication cabinet, and a method for heat dissipation and dust removal for communication cabinets.

[0005] To address the aforementioned technical problems, this application provides a dust removal device for a communication cabinet, comprising a cabinet, a dust collection component, an air inlet valve, and an inner dustproof screen. The cabinet's inner cavity includes an independent communication equipment receiving cavity and an air inlet cavity. The inner dustproof screen is disposed between the communication equipment receiving cavity and the air inlet cavity. The dust collection component and the air inlet valve are disposed within the air inlet cavity. A front air window is provided on the front door of the cabinet. The dust collection component is disposed behind the front air window and at the bottom of the air inlet cavity. The inner dustproof screen is spaced apart from the dust collection component. The air inlet valve is disposed behind the front air window and above the dust collection component.

[0006] When the air inlet valve is closed, the dust collection assembly can discharge the dust on the inner dust screen to the outside of the cabinet through the front air window.

[0007] Optionally, the communication cabinet dust removal device further includes an outer dustproof net disposed on the outside of the front windshield.

[0008] Optionally, the outer dustproof net includes an outer layer of dustproof net, an outer second layer of dustproof net, and an outer third layer of dustproof net arranged sequentially from the inside to the outside, and the mesh count of the inner dustproof net, the outer first layer of dustproof net, the outer second layer of dustproof net, and the outer third layer of dustproof net decreases sequentially.

[0009] The outer first dust-proof net, the outer second dust-proof net and the outer third dust-proof net are in a "C" shape with the opening facing the front windshield. The openings of the outer first dust-proof net, the outer second dust-proof net and the outer third dust-proof net are connected to the outside of the cabinet body and cover the front windshield. The upper surface, the lower surface, the left surface, the right surface and the front surface of the outer first dust-proof net, the outer second dust-proof net and the outer third dust-proof net can all be used for air intake.

[0010] Optionally, the mesh number of the inner dust-proof net is not less than 80 meshes, the mesh number of the outer first dust-proof net is not less than 20 meshes, the mesh number of the outer second dust-proof net is not less than 14 meshes, and the mesh number of the outer third dust-proof net is not less than 10 meshes.

[0011] Optionally, the dust suction component includes a frame and a centrifugal fan installed on the frame. The front side of the frame is open towards the front windshield. The front end face of the frame is closely attached to the inner surface of the front cabinet door of the cabinet body. The rear side plate of the frame faces the inner dust-proof net. A through hole communicating with the inlet of the centrifugal fan is provided on the rear side plate of the frame. The outlet of the centrifugal fan is located inside the frame;

[0012] When the intake air valve is closed, the centrifugal fan is started. By the rotation of the centrifugal fan, a vacuum is formed in the air duct of the centrifugal fan, so that a high negative pressure is formed inside and outside the air duct of the centrifugal fan, sucking the dust on the inner dust-proof net into the air duct of the centrifugal fan and discharging it to the outside of the cabinet body through the front windshield.

[0013] Optionally, the dust suction component further includes a dust-proof baffle, and the dust-proof baffle is rotatably connected to the frame; <​​​​​​​​​According to the dust removal device for communication cabinets in this application, when the conditions for fresh air heat dissipation are not met (i.e., fresh air heat dissipation is not required), and the differential pressure sensor detects that the dust concentration on the inner dust filter is greater than the first preset concentration value (dust is cleaned according to the dust concentration), or when the communication cabinet has been running for a predetermined period (dust is cleaned according to the period), the air inlet valve and fresh air fan are closed, and the dust collection component is turned on to run the dust collection mode. The dust collection component discharges the dust on the inner dust filter to the outside of the cabinet through the front air window. The automatic and intelligent control of dust removal from the inner dust filter ensures the long-term reliable normal operation of the direct ventilation system of the communication cabinet, realizes maintenance-free and energy-saving emission reduction of the direct ventilation system of the communication cabinet, saves customers the maintenance costs of the fresh air filtration system, and creates value for customers.

[0018] In addition, the centrifugal fan is automatically cleaned of dust by using a timed (according to a predetermined cycle) or differential pressure sensor-triggered vacuum suction, which delays the clogging cycle and keeps the fresh air system in the cabinet working properly.

[0019] On the other hand, this application embodiment also provides a communication cabinet, including communication equipment, an air conditioner, a fresh air fan, an air outlet valve, a rear dustproof net, and the aforementioned communication cabinet dust removal device. The air conditioner is installed at the bottom of the cabinet, the communication equipment is installed in the communication equipment receiving cavity and located above the air conditioner, the rear side of the cabinet is provided with an air outlet cavity independent of the communication equipment receiving cavity, the air outlet valve is located in the air outlet cavity, the rear dustproof net is located behind the air outlet valve, and the fresh air fan is located between the air outlet cavity and the communication equipment receiving cavity.

[0020] Optionally, the communication cabinet further includes a differential pressure sensor, a controller, a cabinet internal temperature and humidity sensor, and a cabinet internal temperature sensor. The cabinet internal temperature and humidity sensor, the cabinet internal temperature sensor, the differential pressure sensor, the air conditioner, the fresh air fan, the air outlet valve, the dust collection assembly, and the air inlet valve are respectively connected to the controller via signals.

[0021] The temperature and humidity sensor inside the cabinet is installed at the top of the cabinet and above the fresh air fan, and is used to detect the temperature and humidity in the area behind the communication equipment.

[0022] The cabinet temperature sensor is installed on the air conditioner and is used to detect the temperature at the air conditioner's return air vent.

[0023] When the differential pressure sensor detects that the dust concentration on the inner dustproof screen is higher than a first preset concentration value, the controller closes the air inlet valve and turns on the dust collection component; when the differential pressure sensor detects that the dust concentration on the inner dustproof screen is lower than a second preset concentration value, the controller turns on the air inlet valve and turns off the dust collection component.

[0024] Optionally, the differential pressure sensor includes a pressure switch, a first pressure switch probe, and a second pressure switch probe. The first pressure switch probe and the second pressure switch probe are connected to the pressure switch, and the pressure switch is signal-connected to the controller. The first pressure switch probe is disposed in the air inlet cavity, and the second pressure switch probe is disposed in the communication device housing cavity and located behind the inner dustproof net.

[0025] The dust concentration on the inner dustproof mesh is detected by calculating the pressure difference between the pressure detected by the first pressure switch probe and the pressure detected by the second pressure switch probe.

[0026] Furthermore, embodiments of this application also provide a method for heat dissipation and dust removal in a communication cabinet, comprising:

[0027] When the air intake valve and fresh air fan are open, the dust collection component is closed, and the first heat dissipation mode, the second heat dissipation mode, or the third heat dissipation mode is run.

[0028] If the fresh air heat dissipation conditions are not met, and the differential pressure sensor detects that the dust concentration on the inner dust filter is greater than the first preset concentration value, or if the communication cabinet has been running for a predetermined period, the air inlet valve and fresh air fan are closed, and the dust collection component is turned on to run the dust collection mode. The dust collection component discharges the dust on the inner dust filter to the outside of the cabinet through the front air window.

[0029] Optionally, the first cooling mode includes:

[0030] When the temperature sensor inside the cabinet detects that the temperature at the air conditioner return vent is lower than the first preset temperature, the air conditioner is turned off; when the temperature sensor inside the cabinet detects that the temperature at the air conditioner return vent is higher than the second preset temperature, the air conditioner is turned on.

[0031] When the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet is greater than the third preset temperature, the fresh air fan, air inlet valve, and air outlet valve are turned on; when the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet is less than the fourth preset temperature, the fresh air fan, air inlet valve, and air outlet valve are turned off.

[0032] Optionally, the second heat dissipation mode includes:

[0033] When the temperature sensor inside the cabinet detects that the temperature at the air conditioner return vent is greater than the fifth preset temperature, the air conditioner is turned on; when the temperature sensor inside the cabinet detects that the temperature at the air conditioner return vent is less than the sixth preset temperature, the air conditioner is turned off.

[0034] When the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet is greater than the seventh preset temperature, the fresh air fan, air inlet valve, and air outlet valve are turned on; when the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet is less than the eighth preset temperature, the fresh air fan, air inlet valve, and air outlet valve are turned off.

[0035] Optionally, the third cooling mode includes:

[0036] When the temperature sensor inside the cabinet detects that the temperature at the air conditioner return vent is greater than the ninth preset temperature, the air conditioner is turned on; when the temperature sensor inside the cabinet detects that the temperature at the air conditioner return vent is less than the tenth preset temperature, the air conditioner is turned off.

[0037] When the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet drops from the first temperature range to the eleventh preset temperature within a preset time, the fresh air fan, air inlet valve, and air outlet valve are turned off; when the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet drops from the first temperature range to the second temperature range within a preset time, the fresh air fan, air inlet valve, and air outlet valve are turned on.

[0038] Optionally, the heat dissipation and dust removal method for the communication cabinet further includes:

[0039] When the temperature and humidity sensor inside the cabinet detects that the humidity inside the cabinet is greater than the preset humidity, the air outlet valve is closed first, and the fresh air fan is turned off after a preset time.

[0040] Optionally, the heat dissipation and dust removal method for the communication cabinet further includes:

[0041] When the temperature sensor inside the cabinet detects that the temperature at the air conditioner return vent is greater than the thirteenth preset temperature, the air conditioner is turned on and the heating function is activated. When the temperature sensor inside the cabinet detects that the temperature at the air conditioner return vent has reached the fourteenth preset temperature, the heating function is turned off. Attached Figure Description

[0042] Figure 1 This is an internal structural diagram of a communication cabinet provided in one embodiment of this application;

[0043] Figure 2 This is an airflow diagram of a communication cabinet in heat dissipation mode according to an embodiment of this application;

[0044] Figure 3 This is an airflow diagram of a communication cabinet in dust extraction mode according to an embodiment of this application;

[0045] Figure 4 This is a front perspective view of the dust collection component of a communication cabinet provided in an embodiment of this application;

[0046] Figure 5 This is a rear perspective view of the dust collection component of a communication cabinet provided in an embodiment of this application;

[0047] Figure 6 This is a flowchart of a communication cabinet heat dissipation and dust removal method provided in an embodiment of this application.

[0048] The reference numerals in the accompanying drawings are as follows:

[0049] 100. Dust removal device for communication cabinet; 200. Communication equipment; 300. Air conditioner; 400. Fresh air fan; 500. Air outlet valve; 600. Rear dustproof net; 700. Differential pressure sensor; 701. Pressure switch; 702. First pressure switch probe; 703. Second pressure switch probe;

[0050] 1. Cabinet; 11. Communication equipment housing cavity; 12. Air inlet cavity; 13. Front air window; 14. Air outlet cavity; 2. Dust collection assembly; 21. Frame; 211. Through hole; 22. Centrifugal fan; 23. Dust baffle; 3. Air inlet valve; 4. Inner dustproof net; 5. Outer dustproof net; 51. Outer first layer dustproof net; 52. Outer second layer dustproof net; 53. Outer third layer dustproof net; 6. Partition. Detailed Implementation

[0051] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0052] See Figures 1 to 5 The communication cabinet provided in this application embodiment includes a communication cabinet dust removal device 100, a communication device 200, an air conditioner 300, a fresh air fan 400, an air outlet valve 500, and a rear dustproof net 600.

[0053] The communication cabinet dust removal device 100 includes a cabinet body 1, a dust collection assembly 2, an air inlet valve 3, and an inner dust filter 4. The inner cavity of the cabinet body 1 includes an independent communication equipment receiving cavity 11 and an air inlet cavity 12. The inner dust filter 4 is disposed between the communication equipment receiving cavity 11 and the air inlet cavity 12. The dust collection assembly 2 and the air inlet valve 3 are disposed within the air inlet cavity 12. A front air vent 13 is provided on the front door of the cabinet body 1. The dust collection assembly 2 is disposed behind the front air vent 13 and at the bottom of the air inlet cavity 12. The inner dust filter 4 is spaced apart from the dust collection assembly 2. The air inlet valve 3 is disposed behind the front air vent 13 and above the dust collection assembly 2. When the air inlet valve 3 is closed, the dust collection assembly 2 can discharge the dust on the inner dust filter 4 through the front air vent 13 to the outside of the cabinet body 1.

[0054] The front windshield 13 is preferably a louvered window.

[0055] The air conditioner 300 is installed at the bottom of the cabinet 1. The communication device 200 is installed in the communication device accommodation cavity 11 and above the air conditioner 300. An air outlet cavity 14 independent of the communication device accommodation cavity 11 is provided at the rear side of the cabinet 1. The air outlet air valve 500 is arranged in the air outlet cavity 14. The rear side dust-proof net 600 is arranged behind the air outlet air valve 500. The fresh air fan 400 is arranged between the air outlet cavity 14 and the communication device accommodation cavity 11. The communication device 200 can be, for example, a communication main device. The rear side dust-proof net 600 meets the IP5X dust-proof requirement.

[0056] In one embodiment, a partition 6 is fixedly connected to the inner side of the front cabinet door of the cabinet 1. An air inlet cavity 12 is formed between the partition 6 and the front cabinet door of the cabinet 1. An installation hole is provided at the bottom of the partition 6. The inner side dust-proof net 4 is installed in the installation hole.

[0057] In the following text, the front, rear, upper, and lower orientations refer to Figure 1 the coordinate system.

[0058] In one embodiment, the communication cabinet dust removal device 100 further includes an outer side dust-proof net 5 arranged outside the front wind window 13.

[0059] In one embodiment, the outer side dust-proof net 5 includes an outer first-layer dust-proof net 51, an outer second-layer dust-proof net 52, and an outer third-layer dust-proof net 53 arranged in sequence from inside to outside. The mesh numbers of the inner side dust-proof net 4, the outer first-layer dust-proof net 51, the outer second-layer dust-proof net 52, and the outer third-layer dust-proof net 53 decrease in sequence. For example, the mesh number of the inner side dust-proof net 4 is not less than 80 meshes, the mesh number of the outer first-layer dust-proof net 51 is not less than 20 meshes, the mesh number of the outer second-layer dust-proof net 52 is not less than 14 meshes, and the mesh number of the outer third-layer dust-proof net 53 is not less than 10 meshes.

[0060] In one embodiment, the outer first-layer dust-proof net 51, the outer second-layer dust-proof net 52, and the outer third-layer dust-proof net 53 are in a "C" shape with the opening facing the front wind window 13. The openings of the outer first-layer dust-proof net 51, the outer second-layer dust-proof net 52, and the outer third-layer dust-proof net 53 are connected to the outside of the cabinet 1 and cover the front wind window 13. The upper surface, lower surface, left surface, right surface, and front surface of the outer first-layer dust-proof net 51, the outer second-layer dust-proof net 52, and the outer third-layer dust-proof net 53 can all be used for air inlet.

[0061] In this way, there are 5 air inlet directions for the outer side dust-proof net 5, which can avoid the blockage situation in a single plane direction. And the air inlet area is several times to more than a dozen times larger than the existing air inlet area in a single plane direction. The impurities are filtered layer by layer, reducing the blockage and adhesion of various impurities in the same plane.

[0062] The dust, lint, and other debris on the outer dustproof netting 51, the second outer dustproof netting 52, and the third outer dustproof netting 53 are removed naturally (by natural wind, rain, etc.). This natural removal process eliminates the need for manual intervention, reducing the need for personnel.

[0063] In one embodiment, the dust collection assembly 2 includes a frame 21 and a centrifugal fan 22 mounted on the frame 21. The front opening of the frame 21 faces the front air window 13, and the front end face of the frame 21 is in close contact with the inner surface of the front door of the cabinet 1. The rear panel of the frame 21 faces the inner dustproof net 4, and the rear panel of the frame 21 has a through hole 211 communicating with the inlet of the centrifugal fan 22. The outlet of the centrifugal fan is located inside the frame. Multiple centrifugal fans 22 can be arranged side by side, for example... Figure 4 Three centrifugal fans are arranged side by side in the middle.

[0064] See Figure 3 When the air inlet valve 3 is closed, the centrifugal fan 22 is started. The high-speed rotation of the centrifugal fan 22 creates a vacuum in the air duct of the centrifugal fan 22, resulting in a high negative pressure inside and outside the air duct of the centrifugal fan 22. This draws the dust on the inner dustproof net 4 into the air duct of the centrifugal fan 22 and discharges it to the outside of the cabinet 1 through the front air window 13.

[0065] In this way, the vacuum created by the high-speed rotation of the centrifugal fan sucks away the dust on the inner dustproof mesh 4 and discharges it outside the cabinet through the front air vent 13 (louver). The inner dustproof mesh 4 meets the IP5X dustproof requirement. Even when the outer dustproof mesh 51, the outer second dustproof mesh 52, and the outer third dustproof mesh 53 are removed, the inner dustproof mesh 4 can still guarantee the IP5X dustproof requirement. When the outer dustproof mesh 51, the outer second dustproof mesh 52, and the outer third dustproof mesh 53 are present, the maintenance cycle of the inner dustproof mesh 4 can be greatly reduced.

[0066] Using a centrifugal fan for vacuum suction, the inner dustproof mesh 4 is automatically and forcibly removed. The dust on the inner dustproof mesh 4 is removed regularly to delay the clogging cycle.

[0067] See Figure 4 The dust collection assembly 2 also includes a dust baffle 23, which is rotatably connected to the frame 21. When the centrifugal fan 22 is not started, the dust baffle 23 falls down by gravity and closes the outlet of the centrifugal fan 22; when the centrifugal fan 22 is started, the dust baffle 23 rotates by the air force generated by the centrifugal fan 22 and opens the outlet of the centrifugal fan 22.

[0068] In one embodiment, the communication cabinet further includes a differential pressure sensor, a controller, a cabinet internal temperature and humidity sensor T1 and a cabinet internal temperature sensor T2. The cabinet internal temperature and humidity sensor T1, the cabinet internal temperature sensor T2, the differential pressure sensor, the air conditioner 300, the fresh air fan 400, the air outlet valve 500, the dust collection assembly 2 and the air inlet valve 3 are respectively connected to the controller via signals.

[0069] The cabinet temperature and humidity sensor T1 is installed on the top of the cabinet 1 and above the fresh air fan 400, and is used to detect the temperature and humidity in the area behind the communication equipment 200; the cabinet temperature sensor T2 is installed on the air conditioner 300 and is used to detect the temperature at the air conditioner return air vent.

[0070] When the differential pressure sensor detects that the dust concentration on the inner dustproof mesh 4 is higher than a first preset concentration value, the controller closes the air inlet valve 3 and turns on the dust collection assembly 2; when the differential pressure sensor detects that the dust concentration on the inner dustproof mesh 4 is lower than a second preset concentration value, the controller opens the air inlet valve 3 and turns off the dust collection assembly 2. The first and second preset concentration values ​​can be set as needed, for example, the first preset concentration value is 60% and the second preset concentration value is 10%.

[0071] That is, when the differential pressure sensor detects that the dust concentration on the inner dustproof screen 4 reaches 60% or more, the air inlet valve 3 and the fresh air fan 400 at the fresh air inlet are closed, the fresh air system is shut down, and the centrifugal fan 22 is turned on; when the differential pressure sensor detects that the dust concentration on the dustproof screen is less than 10%, the centrifugal fan 22 is turned off, the fresh air system is unlocked, and the fresh air system operates according to... Figure 6 The control logic shown is self-controlled.

[0072] See Figure 2 When in heat dissipation mode, the centrifugal fan 22 is closed, and the inlet air valve 3, fresh air fan 400 and outlet air valve 500 are opened, the fresh air system is working, and the fresh air passes through the outer dustproof net 5 and the front air window 13 and enters the air inlet chamber 12 through the inlet air valve 3. Then it enters the communication equipment housing chamber 11 through the inner dustproof net 4, exchanges heat with the communication equipment 200, enters the rear side, and then flows out through the fresh air fan 400 and the outlet air valve 500.

[0073] In one embodiment, the differential pressure sensor 700 includes a pressure switch 701, a first pressure switch probe 702, and a second pressure switch probe 703. The first pressure switch probe 702 and the second pressure switch probe 703 are connected to the pressure switch 701. The pressure switch 701 is signal-connected to a controller. The first pressure switch probe 702 is disposed in the air inlet cavity 12, and the second pressure switch probe 703 is disposed in the communication device housing cavity 11 and located behind the inner dustproof net 4. The dust concentration on the inner dustproof net 4 is detected by calculating the pressure difference (pressure difference between the two sides of the inner dustproof net 4) detected by the first pressure switch probe 702 and the second pressure switch probe 703.

[0074] According to the dust removal device for communication cabinets in this application, when the conditions for fresh air heat dissipation are not met (i.e., fresh air heat dissipation is not required), and the differential pressure sensor detects that the dust concentration on the inner dust filter is greater than the first preset concentration value (dust is cleaned according to the dust concentration), or when the communication cabinet has been running for a predetermined period (dust is cleaned according to the period), the air inlet valve and fresh air fan are closed, and the dust collection component is turned on to run the dust collection mode. The dust collection component discharges the dust on the inner dust filter to the outside of the cabinet through the front air window. The automatic and intelligent control of dust removal from the inner dust filter ensures the long-term reliable normal operation of the direct ventilation system of the communication cabinet, realizes maintenance-free and energy-saving emission reduction of the direct ventilation system of the communication cabinet, saves customers the maintenance costs of the fresh air filtration system, and creates value for customers.

[0075] In addition, the centrifugal fan is automatically cleaned of dust by using a timed (according to a predetermined cycle) or differential pressure sensor-triggered vacuum suction, which delays the clogging cycle and keeps the fresh air system in the cabinet working properly.

[0076] Figure 6 The down arrow indicates less than, and the up arrow indicates greater than.

[0077] See Figure 6 This application also provides a method for heat dissipation and dust removal in a communication cabinet, comprising:

[0078] When the air intake valve and fresh air fan are open, the dust collection component is closed, and the system operates in the first, second, or third heat dissipation mode.

[0079] If the fresh air heat dissipation conditions are not met, and the differential pressure sensor detects that the dust concentration on the inner dust filter is greater than the first preset concentration value, or if the communication cabinet has been running for a predetermined period, the air inlet valve and fresh air fan are closed, and the dust collection component is turned on to run the dust collection mode. The dust collection component discharges the dust on the inner dust filter to the outside of the cabinet through the front air window.

[0080] The system default mode is the second cooling mode, with the default time being all year round. For each selected mode, you can set the time period to be all year, any month, or any time period, with time periods in hours. For example, the first cooling mode operates 24 / 7 from November of the current year to March of the following year; the second cooling mode operates from May to September of the current year; and the first cooling mode can be set to operate 24 / 7 from 6:00 AM to 6:00 AM throughout the year. These settings are based on the geographical location and climate conditions of the communication cabinet installation site. After the mode is set, any unset time periods will automatically revert to the system default mode.

[0081] Each mode can operate within a set time period to meet diverse heat dissipation and energy-saving needs, and to meet different heat dissipation and energy-saving needs in different regions.

[0082] The first heat dissipation mode includes:

[0083] When the temperature sensor inside the cabinet detects that the temperature at the air conditioner's return air vent is lower than the first preset temperature, the air conditioner is turned off; when the temperature sensor inside the cabinet detects that the temperature at the air conditioner's return air vent is higher than the second preset temperature, the air conditioner is turned on.

[0084] When the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet is greater than the third preset temperature, the fresh air fan, air inlet valve, and air outlet valve are turned on; when the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet is less than the fourth preset temperature, the fresh air fan, air inlet valve, and air outlet valve are turned off.

[0085] The first preset temperature could be, for example, 50℃, the second preset temperature could be, for example, 52℃, the third preset temperature could be, for example, 38℃, and the fourth preset temperature could be, for example, 35℃.

[0086] The air conditioner should be turned on when the internal temperature is above 35°C and turned off when it is below 32°C.

[0087] The second heat dissipation mode includes:

[0088] The air conditioner is turned on when the temperature sensor inside the cabinet detects that the temperature at the air conditioner's return air vent is greater than the fifth preset temperature; the air conditioner is turned off when the temperature sensor inside the cabinet detects that the temperature at the air conditioner's return air vent is less than the sixth preset temperature.

[0089] When the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet is greater than the seventh preset temperature, the fresh air fan, air inlet valve, and air outlet valve are turned on; when the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet is less than the eighth preset temperature, the fresh air fan, air inlet valve, and air outlet valve are turned off.

[0090] The fifth preset temperature can be, for example, 35℃, the sixth preset temperature can be, for example, 32℃, the seventh preset temperature can be, for example, 45℃, and the eighth preset temperature can be, for example, 40℃.

[0091] The third heat dissipation mode includes:

[0092] The air conditioner is turned on when the temperature sensor inside the cabinet detects that the temperature at the air conditioner's return air vent is greater than the ninth preset temperature; the air conditioner is turned off when the temperature sensor inside the cabinet detects that the temperature at the air conditioner's return air vent is less than the tenth preset temperature.

[0093] When the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet drops from the first temperature range to the eleventh preset temperature within a preset time, the fresh air fan, air inlet valve, and air outlet valve are turned off; when the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet drops from the first temperature range to the second temperature range within a preset time, the fresh air fan, air inlet valve, and air outlet valve are turned on.

[0094] The ninth preset temperature can be, for example, 35℃, the tenth preset temperature can be, for example, 32℃, the eleventh preset temperature can be, for example, 45℃, the preset time is 10min, the first interval temperature can be, for example, 29-31℃, and the second interval temperature can be, for example, 25-28℃.

[0095] The heat dissipation and dust removal method for the communication cabinet also includes:

[0096] When the temperature and humidity sensor inside the cabinet detects that the humidity inside the cabinet is greater than the preset humidity, the air outlet valve is closed first, and the fresh air fan is turned off after a preset time.

[0097] The preset humidity can be, for example, 92°C, and the preset time can be 5 minutes.

[0098] The heat dissipation and dust removal method for the communication cabinet also includes:

[0099] When the temperature sensor inside the cabinet detects that the temperature at the air conditioner return vent is greater than the thirteenth preset temperature, the air conditioner is turned on and the heating function is activated. When the temperature sensor inside the cabinet detects that the temperature at the air conditioner return vent has reached the fourteenth preset temperature, the heating function is turned off.

[0100] The thirteenth preset temperature could be, for example, -5℃, and the fourteenth preset temperature could be 5℃.

[0101] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dust removal device for a communication cabinet, characterized in that, It includes a cabinet body, a dust suction component, an air inlet valve and an inner dust-proof net. The inner cavity of the cabinet body includes an independent communication equipment accommodation cavity and an air inlet cavity. The inner dust-proof net is arranged between the communication equipment accommodation cavity and the air inlet cavity. The dust suction component and the air inlet valve are arranged in the air inlet cavity. A front air window is arranged on the front cabinet door of the cabinet body. The dust suction component is arranged behind the front air window and at the bottom of the air inlet cavity. The inner dust-proof net is spaced opposite to the dust suction component. The air inlet valve is arranged behind the front air window and above the dust suction component. An air outlet cavity independent of the communication equipment accommodation cavity is arranged at the rear side of the cabinet body; When the air inlet valve is closed, the dust suction component can discharge the dust on the inner dust-proof net to the outside of the cabinet body through the front air window; The dust suction component includes a frame and a centrifugal fan installed on the frame. The front side of the frame is open towards the front air window. The front side end surface of the frame is closely attached to the inner surface of the front cabinet door of the cabinet body. The rear side plate of the frame faces the inner dust-proof net. A through hole communicated with the inlet of the centrifugal fan is arranged on the rear side plate of the frame. The outlet of the centrifugal fan is located inside the frame; When the centrifugal fan is started when the air inlet valve is closed, a vacuum is formed in the air duct of the centrifugal fan by the rotation of the centrifugal fan, so that a high negative pressure is formed inside and outside the air duct of the centrifugal fan, sucking the dust on the inner dust-proof net into the air duct of the centrifugal fan and discharging it to the outside of the cabinet body through the front air window; The communication cabinet dust removal device further includes an outer dust-proof net arranged outside the front air window.

2. The dust removal device for communication cabinets according to claim 1, characterized in that, The outer dust-proof net includes an outer first-layer dust-proof net, an outer second-layer dust-proof net and an outer third-layer dust-proof net arranged in sequence from inside to outside. The mesh numbers of the inner dust-proof net, the outer first-layer dust-proof net, the outer second-layer dust-proof net and the outer third-layer dust-proof net decrease in sequence; The outer first-layer dust-proof net, the outer second-layer dust-proof net and the outer third-layer dust-proof net are in a "C" shape with the opening facing the front air window The openings of the outer first-layer dust-proof net, the outer second-layer dust-proof net and the outer third-layer dust-proof net are connected to the outside of the cabinet body and cover the front air window. The upper surface, lower surface, left surface, right surface and front surface of the outer first-layer dust-proof net, the outer second-layer dust-proof net and the outer third-layer dust-proof net can all be used for air inlet.

3. The dust removal device for communication cabinets according to claim 2, characterized in that, The mesh number of the inner dust-proof net is not less than 80 meshes, the mesh number of the outer first-layer dust-proof net is not less than 20 meshes, the mesh number of the outer second-layer dust-proof net is not less than 14 meshes, and the mesh number of the outer third-layer dust-proof net is not less than 10 meshes.

4. The dust removal device for communication cabinets according to claim 1, characterized in that, The dust suction component further includes a dust-proof baffle, and the dust-proof baffle is rotatably connected to the frame; When the centrifugal fan is not started, the dust-proof baffle falls by gravity and closes the outlet of the centrifugal fan; when the centrifugal fan is started, the dust-proof baffle rotates by the wind force generated by the centrifugal fan and opens the outlet of the centrifugal fan.

5. The dust removal device for communication cabinets according to claim 1, characterized in that, The dust removal device for the communication cabinet also includes a controller and a differential pressure sensor. The differential pressure sensor and the air inlet valve are respectively connected to the controller. The differential pressure sensor is used to detect the pressure difference on both sides of the inner dustproof mesh, thereby detecting the dust concentration on the inner dustproof mesh. When the differential pressure sensor detects that the dust concentration on the inner dustproof screen is higher than a first preset concentration value, the controller closes the air inlet valve and turns on the centrifugal fan; when the differential pressure sensor detects that the dust concentration on the inner dustproof screen is lower than a second preset concentration value, the controller opens the air inlet valve and turns off the centrifugal fan.

6. A communication cabinet, characterized in that, The device includes communication equipment, an air conditioner, a fresh air fan, an air outlet valve, a rear dustproof net, and a dust removal device for a communication cabinet as described in any one of claims 1-4. The air conditioner is installed at the bottom of the cabinet, the communication equipment is installed in the communication equipment housing cavity and located above the air conditioner, the rear side of the cabinet is provided with an air outlet cavity independent of the communication equipment housing cavity, the air outlet valve is located in the air outlet cavity, the rear dustproof net is located behind the air outlet valve, and the fresh air fan is located between the air outlet cavity and the communication equipment housing cavity.

7. The communication cabinet according to claim 6, characterized in that, The communication cabinet also includes a differential pressure sensor, a controller, a cabinet temperature and humidity sensor, and a cabinet temperature sensor. The cabinet temperature and humidity sensor, the cabinet temperature sensor, the differential pressure sensor, the air conditioner, the fresh air fan, the air outlet valve, the dust collection assembly, and the air inlet valve are respectively connected to the controller via signals. The temperature and humidity sensor inside the cabinet is installed at the top of the cabinet and above the fresh air fan, and is used to detect the temperature and humidity in the area behind the communication equipment. The cabinet temperature sensor is installed on the air conditioner and is used to detect the temperature at the air conditioner return air vent. When the differential pressure sensor detects that the dust concentration on the inner dustproof screen is higher than a first preset concentration value, the controller closes the air inlet valve and turns on the dust collection component; when the differential pressure sensor detects that the dust concentration on the inner dustproof screen is lower than a second preset concentration value, the controller turns on the air inlet valve and turns off the dust collection component.

8. The communication cabinet according to claim 7, characterized in that, The differential pressure sensor includes a pressure switch, a first pressure switch probe, and a second pressure switch probe. The first pressure switch probe and the second pressure switch probe are connected to the pressure switch. The pressure switch is signal-connected to the controller. The first pressure switch probe is disposed in the air inlet cavity, and the second pressure switch probe is disposed in the communication device housing cavity and located behind the inner dustproof net. The dust concentration on the inner dustproof mesh is detected by calculating the pressure difference between the pressure detected by the first pressure switch probe and the pressure detected by the second pressure switch probe.

9. A method for heat dissipation and dust removal in a communication cabinet, characterized in that, The communication cabinet described in claim 7 or 8, wherein the heat dissipation and dust removal method for the communication cabinet includes: When the air inlet valve and the fresh air fan are open, the dust collection assembly is closed, and the first heat dissipation mode, the second heat dissipation mode, or the third heat dissipation mode is run. If the fresh air cooling conditions are not met, and the differential pressure sensor detects that the dust concentration on the inner dustproof screen is greater than the first preset concentration value, or if the communication cabinet has been running for a predetermined period, the air inlet valve and the fresh air fan are closed, and the dust collection component is turned on to run the dust collection mode. The dust collection component discharges the dust on the inner dustproof screen to the outside of the cabinet through the front air window.

10. The heat dissipation and dust removal method for a communication cabinet according to claim 9, characterized in that, The first heat dissipation mode includes: When the temperature sensor inside the cabinet detects that the temperature at the air conditioner return air vent is lower than a first preset temperature, the air conditioner is turned off; when the temperature sensor inside the cabinet detects that the temperature at the air conditioner return air vent is higher than a second preset temperature, the air conditioner is turned on. When the temperature and humidity sensor inside the cabinet detects that the temperature of the cold zone inside the cabinet is greater than the third preset temperature, the fresh air fan, the air inlet valve, and the air outlet valve are turned on; when the temperature and humidity sensor inside the cabinet detects that the temperature of the cold zone inside the cabinet is less than the fourth preset temperature, the fresh air fan, the air inlet valve, and the air outlet valve are turned off.

11. The heat dissipation and dust removal method for a communication cabinet according to claim 9, characterized in that, The second heat dissipation mode includes: When the temperature sensor inside the cabinet detects that the temperature at the air conditioner's return air vent is greater than a fifth preset temperature, the air conditioner is turned on; when the temperature sensor inside the cabinet detects that the temperature at the air conditioner's return air vent is less than a sixth preset temperature, the air conditioner is turned off. When the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet is greater than the seventh preset temperature, the fresh air fan, the air inlet valve, and the air outlet valve are turned on; when the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet is less than the eighth preset temperature, the fresh air fan, the air inlet valve, and the air outlet valve are turned off.

12. The heat dissipation and dust removal method for a communication cabinet according to claim 9, characterized in that, The third heat dissipation mode includes: When the temperature sensor inside the cabinet detects that the temperature at the air conditioner's return air vent is greater than the ninth preset temperature, the air conditioner is turned on; when the temperature sensor inside the cabinet detects that the temperature at the air conditioner's return air vent is less than the tenth preset temperature, the air conditioner is turned off. When the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet drops from the first temperature range to the eleventh preset temperature within a preset time, the fresh air fan, the air inlet valve, and the air outlet valve are turned off; when the temperature and humidity sensor inside the cabinet detects that the temperature in the cold zone inside the cabinet drops from the first temperature range to the second temperature range within a preset time, the fresh air fan, the air inlet valve, and the air outlet valve are turned on.

13. The method for heat dissipation and dust removal in a communication cabinet according to claim 9, characterized in that, The heat dissipation and dust removal method for the communication cabinet also includes: When the temperature and humidity sensor inside the cabinet detects that the humidity inside the cabinet is greater than the preset humidity, the air outlet valve is closed first, and the fresh air fan is turned off after a preset time.

14. The heat dissipation and dust removal method for a communication cabinet according to claim 9, characterized in that, The heat dissipation and dust removal method for the communication cabinet also includes: When the temperature sensor inside the cabinet detects that the temperature at the air conditioner return vent is greater than the thirteenth preset temperature, the air conditioner is turned on and the heating function is activated. When the temperature sensor inside the cabinet detects that the temperature at the air conditioner return vent reaches the fourteenth preset temperature, the heating function is turned off.

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