Dust filter device

Abstract

A dust filter device includes: a moving element (1); and at least one dust filter element (2, 3, 4, 5) connected to the moving element (1). The moving element (1) can be configured to be movable to bring the dust filter element (2, 3, 4, 5) to a first position (P1) in the movement path of the airflow, or to remove the dust filter element (2, 3, 4, 5) from the movement path of the airflow.

Description

Technical Field

[0001] The example embodiments generally relate to dust filtration techniques, and more particularly to a dust filter device. Background Technology

[0002] This section introduces aspects that help to better understand exemplary embodiments of this disclosure. Therefore, the statements in this section should be read in this context and should not be construed as an admission of what is in the prior art or what is not.

[0003] Dust filter devices are widely used when it is necessary to remove dust from the environment, such as from airflow. Typically, dust is filtered through a filter structure that allows airflow to pass through, but the dust is blocked.

[0004] However, when dust filter equipment operates for relatively long periods, a large amount of dust accumulates in the filter structure. This reduces the efficiency of the dust filter equipment and may even obstruct airflow. Summary of the Invention

[0005] Certain aspects of this disclosure and its example embodiments may provide solutions to these or other challenges. Various example embodiments are presented herein to address one or more problems disclosed herein.

[0006] A first aspect of this disclosure provides a dust filter device. The dust filter device may include: a moving element; and at least one dust filter element coupled to the moving element. The moving element may be configured to be movable to bring one of the at least one dust filter elements to a first position in a movement path of the airflow, or to remove the dust filter element from the movement path of the airflow.

[0007] In an exemplary embodiment of this disclosure, the moving element may be configured to keep other dust filter elements among the at least one dust filter elements away from the movement path of the airflow when the dust filter element is in the first position.

[0008] In an exemplary embodiment of this disclosure, the dust filter element may include a reticulated structure. When the dust filter element is located in the first position, the airflow passes through the reticulated structure.

[0009] In an exemplary embodiment of this disclosure, the moving element may include: a rod; and a first actuator configured to rotate the rod. The at least one dust filter element is distributed along the circumference direction of the rod. The axial direction of the rod is substantially parallel to the dust filter element.

[0010] In an exemplary embodiment of this disclosure, the at least one dust filter element may be distributed along the circumferential direction of the rod, wherein the interval between adjacent dust filter elements is substantially equal.

[0011] In an exemplary embodiment of this disclosure, the dust filter device may further include a controller comprising a processor and a memory. The controller may be configured to instruct the first actuator to rotate the lever to bring a first dust filter element of the at least one dust filter element to the first position; determine to replace the first dust filter element; and instruct the first actuator to rotate the lever to bring a second dust filter element of the at least one dust filter element to the first position.

[0012] In an exemplary embodiment of this disclosure, the controller may also be configured to: after determining that the first dust filter element should be replaced, instruct the first actuator to rotate the rod at a pre-configured rotational speed for a pre-configured duration.

[0013] In an exemplary embodiment of this disclosure, the dust filter device may further include: a baffle element configured to rotatable between a second position and a third position; and a second actuator configured to rotate the baffle element. When the baffle element is in the second position, the baffle element forms part of a sidewall of the movement path of the airflow and is located between two of the at least one dust filter element. When the baffle is in the third position, the baffle element interrupts the movement path of the airflow.

[0014] In an exemplary embodiment of this disclosure, the dust filter device may further include a controller comprising a processor and a memory. The controller is configured to operate to instruct the second actuator to rotate the baffle element to the third position; instruct the first actuator to rotate the rod to bring a first dust filter element of the at least one dust filter element to the first position; instruct the second actuator to rotate the baffle element to the second position; determine to replace the first dust filter element; instruct the second actuator to rotate the baffle element to the third position; instruct the first actuator to rotate the rod to bring a second dust filter element of the at least one dust filter element to the first position; and instruct the second actuator to rotate the baffle element to the second position.

[0015] In an example embodiment of this disclosure, the airflow includes an airflow.

[0016] A second aspect of this disclosure provides a method for controlling a dust filter device according to any of the above-described example embodiments. The method may include: actuating a moving element to bring at least one dust filter element to a first position in a movement path of an airflow; or actuating the moving element to remove the dust filter element from the movement path of the airflow.

[0017] A third aspect of this disclosure provides a computer-readable storage medium having a computer program stored thereon. The computer program can be executed by a device to cause the device to perform the method described according to the above exemplary embodiments.

[0018] A fourth aspect of this disclosure provides a gas cooling device. The gas cooling device may include a dust filter device according to any of the above embodiments. The dust filter device is installed at the gas inlet of the gas cooling device.

[0019] A fifth aspect of this disclosure provides a circuit assembly including: a circuit unit; and a gas cooling device according to the exemplary embodiments described above. The gas cooling device is mounted next to the circuit unit.

[0020] In an example embodiment of this disclosure, the circuit unit may include an active antenna unit.

[0021] According to an exemplary embodiment of this disclosure, the dust filter device may include at least one dust filter element. The dust filter element may be arranged at a first position in the movement path of the airflow for filtering dust from the airflow. Furthermore, for example, when the dust filter element contains a large amount of dust, the dust filter element may be removed from the movement path of the airflow. The operating efficiency of the dust filter device can be maintained even when the dust filter device operates for a relatively long period of time. Attached Figure Description

[0022] The above and other objects, features and advantages of the exemplary embodiments of this disclosure will become more apparent from the more detailed description of some exemplary embodiments illustrated in the accompanying drawings, wherein the same reference numerals generally refer to the same components in the exemplary embodiments of this disclosure.

[0023] Figure 1 This is a diagram showing a first view of a dust filter device according to an exemplary embodiment of the present disclosure.

[0024] Figure 2 This is a diagram showing a second view of a dust filter device according to an exemplary embodiment of the present disclosure.

[0025] Figure 3 This is a diagram illustrating the controller of a dust filter device according to an exemplary embodiment of the present disclosure.

[0026] Figure 4 This is a diagram showing a first view of a dust filter device with additional elements according to an exemplary embodiment of the present disclosure.

[0027] Figure 5 It is shown Figure 4 The second view of the diagram.

[0028] Figure 6 It is shown Figure 4 The third view diagram.

[0029] Figure 7 This is a flowchart illustrating a method for controlling a dust filter device according to an exemplary embodiment of the present disclosure.

[0030] Figure 8 This is a diagram illustrating a computer-readable storage medium according to an exemplary embodiment of the present disclosure.

[0031] Figure 9 This is a diagram illustrating a gas cooling device in a circuit assembly according to an example embodiment of the present disclosure.

[0032] Figure 10 This is a diagram showing the configuration of heat sinks in a gas cooling device. Detailed Implementation

[0033] Some exemplary embodiments contemplated herein will now be described more fully with reference to the accompanying drawings. However, other exemplary embodiments are included within the scope of the subject matter disclosed herein, and the disclosed subject matter should not be construed as being limited to the exemplary embodiments set forth herein; rather, these exemplary embodiments are provided by way of example only to convey the scope of the subject matter to those skilled in the art.

[0034] Generally, unless a different meaning is clearly given and / or implied in the context of its use, all terms used herein shall be interpreted according to their ordinary meaning in the relevant art. Unless expressly stated otherwise, all references to "a / an / element, device, component, apparatus, step, etc." shall be interpreted openly as referring to at least one instance of that element, device, component, apparatus, step, etc. Unless expressly described as a step following or preceding another step and / or implied that a step must follow or precede another step, the steps of any method disclosed herein need not be performed in the exact order disclosed. Any feature of any embodiment disclosed herein may be applied to any other embodiment where appropriate. Similarly, any advantage of any embodiment may be applied to any other embodiment, and vice versa. Further objects, features, and advantages of the appended embodiments will become apparent from the following description.

[0035] As used herein, the terms “first,” “second,” etc., refer to different elements. Unless the context clearly indicates otherwise, the singular forms “a” and “an” are also intended to include the plural forms. As used herein, the terms “comprising,” “including,” “having,” and / or “containing” specify the presence of the said features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. The term “based on” should be understood as “at least partially based on.” The terms “one embodiment” and “embodiment” should be understood as “at least one embodiment.” The term “another embodiment” should be understood as “at least one other embodiment.” Other definitions (explicit and implicit) may be included below.

[0036] Airflow, especially airflow, is widely used to remove heat from equipment such as circuit components. For example, such airflow can be generated by a fan. This cooling method is also known as forced cooling. Compared to another method that relies solely on heatsinks for cooling through natural radiation and convection energy to the environment, forced cooling offers advantages such as smaller unit size and lighter weight.

[0037] An example implementation of this forced cooling method could be at a radio access network node, such as a base station. The base station can use a distributed base station architecture. The entire base station can be divided into two parts: a BBU (baseband unit) and an RF (radio frequency) remote unit. The BBU primarily performs transmission, master / clock, and baseband processing functions, while the RF unit primarily performs digital IF (intermediate frequency), up / down conversion, RF amplification, and filtering functions. The antenna unit integrated into the RF remote unit is called an AAU (active antenna unit), and in this distributed base station architecture, it is also considered a type of RF remote unit.

[0038] These RF remote units are typically installed at the top of towers relatively high above the ground to avoid surrounding obstacles and thus achieve good wireless transmission characteristics. This means that repairing or maintaining the RF remote unit at the top of the tower is very difficult and costly.

[0039] This RF remote unit performs functions that consume a significant amount of power. Statistics show that the conventional power efficiency of RF remote units is approximately 10-30%. This means that 70%-90% of the power should be distributed to the environment through cooling methods.

[0040] The forced-cooling fan and RF remote unit are installed together. The fan, driven by a motor through blades, draws in cool outside air and delivers it to the high-temperature heat sink. During this process, the cool air carries away heat from the surface of the heat sink, thus achieving cooling.

[0041] For units located in such tall towers, one problem with the cooling system is caused by foreign objects in the air, which can lead to fan malfunctions. Outdoor air is not pure and may contain dust, animal feathers / hair, and plant clumps (such as willow and dandelion seeds). These foreign objects are sucked into the fans and can deposit on the dust filters at the air intakes. These objects obstruct the cooling air from passing through the radiators at its normal speed, thus severely reducing cooling effectiveness.

[0042] For units located in such tall towers, one problem with the cooling system is caused by foreign objects in the air, which can lead to fan malfunctions. Outdoor air is not pure and may contain dust, animal feathers / hair, and plant clumps (such as willow and dandelion seeds). These foreign objects are sucked into the fans and can deposit on the dust filters at the air intakes. These objects obstruct the cooling air from passing through the radiators at the normal speed, thus severely reducing cooling efficiency.

[0043] Based on empirical data, in areas with a high concentration of airborne debris, the cooling function of the fan will fail after 3-5 years, requiring additional fan maintenance. As mentioned earlier, the RF remote unit is installed at a high altitude. Maintaining and repairing the fan will be extremely difficult and costly, as it requires workers to climb to the top of the tower and manually replace the fan module and clean the RF remote unit.

[0044] The example implementations can provide improved solutions to such problems.

[0045] Figure 1 This is a diagram showing a first view of a dust filter device according to an exemplary embodiment of the present disclosure.

[0046] The dust filter device may include: a moving element 1; and at least one dust filter element 2, 3, 4, 5 coupled to the moving element 1. The moving element 1 may be configured to be movable to bring at least one of the dust filter elements 2, 3, 4, 5 to a first position P1 in the movement path of the airflow, or to remove the dust filter element from the movement path of the airflow.

[0047] According to exemplary embodiments of this disclosure, for example, when a dust filter element contains a large amount of dust, the dust filter element can be carried away from the airflow path. Even when the dust filter device operates for a relatively long period, its operating efficiency can be maintained.

[0048] Figure 2 This is a diagram showing a second view of a dust filter device according to an exemplary embodiment of the present disclosure.

[0049] Figure 2 yes Figure 1 Side view of the dust filter element 4 shown.

[0050] In an exemplary embodiment of this disclosure, the moving element 1 may be configured to keep at least one of the other dust filter elements 3, 4, 5 away from the movement path of the airflow when the dust filter element 2 is in the first position P1.

[0051] In an example embodiment of this disclosure, the dust filter element may include a mesh structure. When the dust filter element is in a first position P1, airflow passes through the mesh structure.

[0052] In an exemplary embodiment of this disclosure, the moving element 1 may include: a rod; and a first actuator 8 configured to rotate the rod. At least one dust filter element 2, 3, 4, 5 is distributed along the circumferential direction of the rod. The axial direction of the rod is substantially parallel to the axial direction of the dust filter element.

[0053] Therefore, when the first actuator 8 rotates the rod, the position of at least one dust filter element 2, 3, 4, 5 will change accordingly.

[0054] The lever can be integrated with actuator 8. Actuator 8 can be an electric motor.

[0055] In an exemplary embodiment of this disclosure, at least one dust filter element 2, 3, 4, 5 may be distributed along the circumferential direction of the rod, wherein the spacing between adjacent dust filter elements is substantially equal.

[0056] In a circumferential arrangement, the interval can be an angular interval. Therefore, stable rotation of the rod having at least one dust filter element 2, 3, 4, 5 can be achieved by using substantially equal intervals.

[0057] According to an exemplary embodiment of this disclosure, a rotating mechanism is used to change the position of a dust filter element when necessary. This rotating mechanism has advantages such as simplicity, compactness, and stability.

[0058] Specifically, the dust filter element may include a dust filter screen, which is a thin mesh structure made of any type of suitable material available on the market. The mesh structure filters out foreign objects in the air, preventing them from entering the air inlet.

[0059] More specifically, this rod can also be called a dust filter mounting rod. It is an elongated oval object extending from the left to the right of the air inlet. Four dust filters (marked as 2, 3, 4, and 5) can be installed in the rod. Each dust filter is arranged at a 90-degree angle to the nearest dust filter. The number of dust filters is not limited to four; for example, two or three filters can also be used. Correspondingly, the angle interval can also be different from 90 degrees.

[0060] The dust filter mounting rod can be driven to rotate by the motor 8 on the left side, and a bearing fixed to the device is installed on its right side.

[0061] The motor 8 rotates the dust filter mounting rod under the control of AAU's fan control logic software.

[0062] Figure 3 This is a diagram illustrating the controller of a dust filter device according to an exemplary embodiment of the present disclosure.

[0063] In an exemplary embodiment of this disclosure, the dust filter device may further include a controller 400, which includes a processor 401 and a memory 402. The controller 400 is configured to be operable to: instruct a first actuator 8 to rotate a lever to move a first dust filter element of at least one of the dust filter elements 2, 3, 4, 5 to a first position P1; determine to replace the first dust filter element; and instruct the first actuator 8 to rotate a lever to move a second dust filter element of at least one of the dust filter elements 2, 3, 4, 5 to the first position P1.

[0064] According to exemplary embodiments of this disclosure, the replacement of dust filter elements can be performed easily and automatically, without the need for manual operation.

[0065] In an example embodiment of this disclosure, the controller may also be configured to: after determining that the first dust filter element needs to be replaced, instruct the first actuator 8 to rotate the rod at a pre-configured rotational speed for a pre-configured duration.

[0066] According to an example embodiment of this disclosure, a relatively high rotational speed (which may be predetermined and pre-configured) can be used to automatically clean previously used dust filter elements.

[0067] Processor 401 can be any type of processing component / circuit, such as one or more microprocessors or microcontrollers, as well as other digital hardware, which may include digital signal processors (DSPs), application-specific digital logic, etc. Memory 402 can be any type of storage component, such as read-only memory (ROM), random access memory, cache memory, flash memory, optical storage devices, etc.

[0068] As used in this application, the term "circuit system" may refer to one or more of the following: (b) a purely hardware circuit implementation (e.g., an implementation in analog and / or digital circuits only) and a combination of hardware circuits and software, such as (if applicable): (i) a combination of analog and / or digital hardware circuits with software / firmware, and (ii) any portion of a hardware processor (including a digital signal processor), software, and memory that works together to enable a device such as a mobile phone or server to perform various functions, and (c) hardware circuits and / or processors (e.g., a microprocessor or a portion of a microprocessor) that require software (e.g., firmware) for operation, but which may not be present if it is not required for operation.

[0069] This definition of "circuit" applies to all uses of the term in this application (including in any claim). As another example, as used herein, the term "circuit" also covers implementations of hardware circuitry or processors (or processors in general) or portions thereof and their accompanying software and / or firmware. The term "circuit" also covers, for example, baseband integrated circuits for mobile devices or similar integrated circuits in servers, cellular network devices, or other computing or networking devices, as applicable to specific claim elements.

[0070] Figure 4 This is a diagram showing a first view of a dust filter device with additional elements according to an exemplary embodiment of the present disclosure. Figure 5 It is shown Figure 4 The second view of the diagram. Figure 6 It is shown Figure 4 The third view diagram.

[0071] In an exemplary embodiment of this disclosure, the dust filter device may further include: a baffle element 6 configured to rotatable between a second position P2 and a third position P3; and a second actuator 7 configured to rotate the baffle element 6. When the baffle element 6 is in the second position P2, the baffle element 6 forms part of a sidewall of the airflow path and is located between two of at least one of the dust filter elements 2, 3, 4, 5. When the baffle element 6 is in the third position P3, the baffle element 6 interrupts the airflow path.

[0072] The baffle element 6 and the additional fixed sidewall 10 can form a path for airflow and guide the airflow from the outside to the device to be cooled. The second actuator 7 may also include a motor.

[0073] The baffle element 6 and the additional fixed sidewall 10 serve as air guides. The fixed wall 10 can be the mounting base for the dust filter device. The fixed wall 10 can be mounted to the AAU by screws on one side, and other components of the dust filter device are mounted in the fixed sidewall 10.

[0074] According to an example embodiment of this disclosure, a compact structure can be achieved using a rotatable (foldable) baffle element 6.

[0075] Specifically, the baffle element 6 can be a solid plate and functions to prevent air from entering the air intake from the side in normal operating mode. It can be rotated 90 degrees to the right from its normal position to cover the air intake and prevent air and debris from entering it.

[0076] The second actuator 7 may include a baffle drive motor. This motor drives the baffle element 6 under the fan control logic software.

[0077] The device to be cooled may include a body 20, such as an AAU body, which is not part of the dust filter device. However, the dust filter device may be installed on the AAU. For example, the dust filter is located at the air inlet of a gas cooling device, which includes heat sinks 9, a fan 21, and a cover 22.

[0078] Correspondingly, the controller 400 can be configured to be operable to: instruct the second actuator 7 to rotate the baffle element 6 to a third position P3; instruct the first actuator 8 to rotate a lever to bring a first dust filter element of at least one of the dust filter elements 2, 3, 4, 5 to a first position P1; instruct the second actuator 7 to rotate the baffle element 6 to a second position P2; determine to replace the first dust filter element; instruct the second actuator 7 to rotate the baffle element 6 to a third position P3; instruct the first actuator 8 to rotate a lever to bring a second dust filter element of at least one of the dust filter elements 2, 3, 4, 5 to a first position P1; and instruct the second actuator 7 to rotate the baffle element 6 to a second position P2.

[0079] In the example embodiments of this disclosure, the airflow includes an airflow.

[0080] Figure 7 This is a flowchart illustrating a method for controlling a dust filter device according to an exemplary embodiment of the present disclosure.

[0081] The method may include: S101, actuating the motion element 1 to bring at least one of the dust filter elements 2, 3, 4, 5 to a first position P1 in the movement path of the airflow; or S102, actuating the motion element 1 to remove the dust filter element from the movement path of the airflow.

[0082] This method can be executed by controller 400.

[0083] Figure 8 This is a diagram illustrating a computer-readable storage medium according to an exemplary embodiment of the present disclosure.

[0084] The computer-readable storage medium 500 may have a computer program 501 stored thereon. This computer program can be executed by a device to cause the device to perform the method described according to the above example embodiments. The computer program can be executed by a controller 400.

[0085] The computer-readable storage medium 500 can be configured to include a memory such as RAM, ROM, programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), disk, optical disk, floppy disk, hard disk, removable cassette tape, or flash drive.

[0086] Figure 9 This is a diagram illustrating a gas cooling device in a circuit assembly according to an example embodiment of the present disclosure.

[0087] The circuit assembly may include: a circuit unit (included in the main body 20); and a gas cooling device. The gas cooling device may be installed next to the circuit unit.

[0088] In exemplary embodiments of this disclosure, the circuit unit may include an active antenna unit.

[0089] The gas cooling device may include a fan 21 to draw in air and thus generate an airflow. The gas cooling device may include heat sinks 9 to better absorb heat from the device to be cooled.

[0090] Figure 10 This is a diagram showing the configuration of heat sinks in a gas cooling device.

[0091] Figure 10 It shows Figure 9 The view of the gas cooling device from the air inlet to the heat sink (fin) shows that multiple heat sinks 9 can be arranged in parallel and airflow can pass through the space between the heat sinks.

[0092] In the gas cooling system, a set of fans can be located behind the heatsink 9. Airflow comes from air inlets located at the top and bottom (or left and right) of the AAU, and the air is heated as it passes through the heatsink 9 from the air inlets to the fans 21. These fans draw the hot air to the outside of the AAU body.

[0093] As the AAU's lifespan increases, these air intakes will gradually become partially clogged with airborne debris. This clogging can lead to AAU overheating. Therefore, to maintain the AAU's proper functioning, it is necessary to remove the debris blocking the air intakes.

[0094] Traditionally, human workers had to perform such operations manually.

[0095] However, in exemplary embodiments of this disclosure, the dust filter device with automatic foreign matter removal function may be located in one or two air inlets.

[0096] The gas cooling equipment may include a dust filter device according to any of the above example embodiments. The dust filter device may be installed at the air inlet of the gas cooling equipment.

[0097] Specifically, more detailed example processes for dust filter equipment and gas cooling equipment can be shown below.

[0098] Under normal operating conditions, the fan control logic monitors the AAU temperature sensor and fan speed. If the fan speed / AAU temperature exceeds a certain value, it may trigger an automatic dust filter replacement.

[0099] The fan control logic (software unit) can record the current position of the dust filter (e.g., indicating the current position of the dust filter element 2 as a dust filter).

[0100] The fan control logic stops the fan.

[0101] The second actuator 7 drives the baffle element 6 from a vertical state (second position) to a horizontal state (third position), covering the air inlet.

[0102] The first actuator 8 drives the rod of the motion element 1 to rotate at high speed for 10 seconds. This high-speed rotation dislodging airborne debris attached to the dust filter.

[0103] The first actuator 8 rotates the rod of the motion element 1, causing another dust filter to rotate 90 degrees counterclockwise from the previous recording position. For example, dust filter element 5 should be selected as the new dust filter.

[0104] The second actuator 7 drives the baffle element 6 from a horizontal state (third position) to a vertical state (second position) to prevent foreign objects in the air, for example, from entering the air intake from the left side.

[0105] The fan control logic restarts the fan.

[0106] The fan control logic continues to monitor whether the fan speed / AAU temperature exceeds a specific value.

[0107] According to exemplary embodiments of this disclosure, for example, when the dust filter element contains a large amount of dust, the dust filter element can be carried away from the airflow path. Furthermore, the dust filter element carrying dust can be automatically cleaned. Even when the dust filter device operates for a relatively long period of time, its operating efficiency can be maintained.

[0108] According to exemplary embodiments of this disclosure, dust filter devices are particularly useful for equipment that is not easily operated by human workers (e.g., active antenna units in very tall towers). The dust filter device can operate throughout its design life without manual maintenance.

[0109] This disclosure includes any novel features or combinations of features explicitly stated or disclosed herein, or any generalization thereof. However, various modifications and adjustments to the foregoing description of the exemplary embodiments of this disclosure will become apparent to those skilled in the art when read in conjunction with the accompanying drawings. Nevertheless, any and all modifications will still fall within the non-limiting scope of the exemplary embodiments of this disclosure.

Claims

1. A dust filter device, comprising: Motion element (1); as well as At least one dust filter element (2, 3, 4, 5) coupled to the moving element (1); The motion element (1) is configured to be movable to bring the dust filter element (2, 3, 4, 5) of the at least one dust filter element to a first position (P1) in the movement path of the airflow, or to remove the dust filter element from the movement path of the airflow. The dust filter device further includes: A baffle element (6) is configured to rotate between a second position (P2) and a third position (P3); A second actuator (7) is configured to rotate the baffle element (6); When the baffle element (6) is in the second position (P2), the baffle element (6) forms part of the sidewall of the movement path of the airflow and is located between two dust filter elements in the at least one dust filter element (2, 3, 4, 5). When the baffle element (6) is located in the third position (P3), the baffle element (6) interrupts the movement path of the airflow; The dust filter device further includes: A controller (400) including a processor (401) and a memory (402); The controller (400) is configured to operate to: The second actuator (7) is instructed to rotate the baffle element (6) to the third position (P3); The first actuator (8) is instructed to rotate the lever to bring the first dust filter element (2, 3, 4, 5) of the at least one dust filter element to the first position (P1); The second actuator (7) is instructed to rotate the baffle element (6) to the second position (P2); Determine to replace the first dust filter element; The second actuator (7) is instructed to rotate the baffle element (6) to the third position (P3); Instruct the first actuator (8) to rotate the rod to bring the second dust filter element of the at least one dust filter element (2, 3, 4, 5) to the first position (P1); and The second actuator (7) is instructed to rotate the baffle element (6) to the second position (P2).

2. The dust filter device according to claim 1, wherein, The motion element (1) is configured to keep the other dust filter elements among the at least one dust filter elements (2, 3, 4, 5) away from the movement path of the airflow when the dust filter element is in the first position (P1).

3. The dust filter device according to claim 1 or 2, in, The dust filter element includes: a mesh structure; and When the dust filter element is located at the first position (P1), the airflow passes through the mesh structure.

4. The dust filter device according to any one of claims 1 to 2, in, The motion element (1) includes: The rod; and The first actuator (8) is configured to rotate the rod; Wherein, the at least one dust filter element (2, 3, 4, 5) is distributed along the circumferential direction of the rod; and The axial direction of the rod is substantially parallel to that of the dust filter element.

5. The dust filter device according to claim 4, in, The at least one dust filter element (2, 3, 4, 5) is distributed along the circumferential direction of the rod, wherein the spacing between adjacent dust filter elements is substantially equal.

6. The dust filter device according to claim 5, in, The controller (400) is also configured to operate to: After determining that the first dust filter element needs to be replaced, the first actuator (8) is instructed to rotate the rod at a pre-configured rotational speed for a pre-configured duration.

7. The dust filter device according to any one of claims 1 to 2, in, The airflow includes airflow.

8. A method for controlling a dust filter device according to any one of claims 1 to 7, comprising: Actuate (S101) the moving element (1) to bring the dust filter element (2, 3, 4, 5) of the at least one dust filter element to a first position (P1) in the movement path of the airflow; or Actuate (S102) the moving element (1) to carry the dust filter element away from the movement path of the airflow.

9. A computer-readable storage medium (500) having a computer program (501) stored thereon, the computer program (501) being executable by a device to cause the device to perform the method according to claim 8.

10. A gas cooling device, comprising: Dust filter device according to any one of claims 1 to 7; The dust filter device is installed at the air inlet of the gas cooling device.

11. A circuit assembly, comprising: Circuit unit; as well as The gas cooling device according to claim 10; The gas cooling device is installed next to the circuit unit.

12. The circuit assembly according to claim 11, in, The circuit unit includes an active antenna unit.

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