Anti-interference filter assembly

Abstract

The invention discloses an anti-interference filter assembly, and relates to the technical field of anti-interference filters. According to the anti-interference filter, the insulating layer and the anti-interference coating are arranged on the inner wall of the shell in a matched manner, so that a multi-layer anti-interference barrier is conveniently formed, the overall anti-interference effect of the shell is improved, and all-directional anti-interference protection of the filter can be realized; through the cooperation of the heat-conducting grease, the heat-conducting fins and the turbine blades, the heat generated during the working of the filter can be quickly conducted and dissipated; establishing a heat balance equation through an analysis module, and reversely deducing a real temperature in combination with parameters such as the heating power of the probes and the thermal resistance between the probes; according to the method, the real temperature of the component can be accurately obtained, key temperature information is provided for evaluating the performance of the component and predicting potential faults, the problem of overheating or supercooling of the component can be found in time, and stable operation of a filter assembly is guaranteed; the relation between the energy consumption and the temperature of the element is defined, and heat dissipation and energy-saving control can be more accurately carried out according to the energy consumption change rule of different temperature intervals.

Description

Technical Field

[0001] This invention relates to the field of anti-interference filter technology, and more particularly to anti-interference filter components. Background Technology

[0002] With the rapid development of modern electronic equipment and power systems, the application of various electronic components, communication equipment, and power facilities is becoming increasingly widespread. This has led to an increasingly complex electromagnetic environment. As a key component for suppressing electromagnetic interference and ensuring the normal operation of equipment, anti-interference filter components are becoming increasingly important. During operation, electronic equipment generates a certain amount of electromagnetic noise, which may interfere with the normal operation of other surrounding equipment through conduction or radiation. At the same time, external electromagnetic interference, such as harmonics in the power grid, electromagnetic pulses generated by lightning strikes, and wireless communication signals, can also intrude into the equipment, causing problems such as signal distortion, unstable operation, or even damage. For example, in industrial automation control systems, strong electromagnetic interference may lead to sensor data acquisition errors and actuator malfunctions, thus affecting the operation of the entire production line. In communication systems, electromagnetic interference can reduce communication quality, causing call interruptions and data transmission errors. To solve these electromagnetic interference problems, anti-interference filter components have emerged. Their main function is to attenuate signals of specific frequencies, allowing useful signals to pass smoothly while blocking the propagation of interference signals, thereby achieving electromagnetic compatibility protection for equipment. However, existing anti-interference filter components still have some shortcomings in practical applications. On the one hand, the anti-interference performance of some filter components is not ideal. Their internal structure design is unreasonable and lacks effective multi-layer anti-interference measures, resulting in poor suppression of various interference signals in complex electromagnetic environments, making it difficult to meet the needs of high-precision and high-reliability equipment. On the other hand, heat dissipation problems also restrict the performance and lifespan of filter components. When the filter is working, it will generate a certain amount of heat due to the current passing through it. If the heat cannot be dissipated in time, it will cause the internal temperature of the component to rise, which will not only reduce the filtering performance of the filter, but may also accelerate the aging of internal components and shorten its lifespan. Especially in high-power equipment, the heat generated by the filter is greater and the heat dissipation problem is more prominent. Therefore, the above-mentioned problems need to be addressed and improved. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-interference filter component.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an anti-interference filter assembly, including a housing, ear plates fixed to the bottom ends of both sides of the housing, and a mounting base installed inside the housing, a filter being installed on the upper end of the mounting base by bolts at the four corners, wiring terminals being installed at both ends of the filter, the other end of the wiring terminal penetrating through the housing, an anti-interference component being installed on the housing, and a heat dissipation component being installed inside the housing; The casing also houses an intelligent control module, which includes a data acquisition unit, an analysis unit, and an execution unit. The acquisition unit collects temperature data from the temperature probe and the environment, and transmits the collected temperature data to the analysis module; The analysis unit receives the temperature data transmitted from the acquisition module, performs data preprocessing, analyzes the preprocessed temperature data, obtains the real temperature data of the internal components of the filter assembly, analyzes the energy consumption of the corresponding components at the corresponding temperature based on the temperature data, obtains the total energy consumption of each component at the detected temperature and the real temperature, compares it with the preset total energy consumption threshold, generates a heat dissipation signal or a cooling signal, and transmits the heat dissipation signal and cooling signal to the execution module. The execution module receives signals from the analysis module and performs corresponding operations.

[0005] Preferably, the analysis module performs the following steps for analyzing temperature data: S1: Temperature probe Detected temperature data , For ambient temperature, probe Transmitted to probe The equivalent thermal power, probe Its own heat generation power, The thermal resistance between the temperature probe and the environment; since interference is mutual, the final temperature data corresponding to the temperature probe after interference. , , For the first The temperature values ​​detected by adjacent temperature probes after interference. For the first The temperature probe and the first Thermal conductivity resistance between adjacent temperature probes; S2: According to the probe Self-heating power Thermal resistance between probes and the detection temperature after interference The actual temperature data are obtained by solving the simultaneous heat balance equations. Combined with interference model By reverse deduction: .

[0006] Preferably, the analysis module performs the following steps to analyze the energy consumption corresponding to the temperature data: K1: The internal resistance of the component increases with increasing temperature; the increased internal resistance... , Initial temperature The internal resistance below, The temperature coefficient of the internal resistance of the corresponding component; the energy conversion efficiency of the corresponding component. , Useful power consumption; Total power consumption , This is useless power consumption; K2: The temperature fluctuation of the component is within a reasonable range. When the time is short, the impact on the components is relatively small, that is, when At that time, the total power consumption is ;when hour, The total power consumption is ;when At that time, the total power consumption is ; K3: For the corresponding time points of each component within the filter assembly The energy consumption data is acquired and summed to obtain the total energy consumption data of each component. When the total energy consumption data corresponding to the detected temperature data At that time, a heat dissipation signal is generated and transmitted to the execution module. This is a preset total energy consumption threshold; when the total energy consumption data corresponds to the actual temperature data... Time (detected temperature data) (Based on real temperature data), a cooling signal is generated and transmitted to the execution module.

[0007] Preferably, the anti-interference component includes an insulating layer installed on the inner wall of the housing, an anti-interference coating is installed on the inner wall of the insulating layer, and an anti-interference magnetic ring is installed on the outer side of the terminal, with one end of the anti-interference magnetic ring threadedly connected to the housing.

[0008] Preferably, thermal grease is applied between the top surface of the mounting base and the bottom surface of the filter, and multiple thermal fins are fixed at equal intervals on both sides of the mounting base.

[0009] Preferably, the mounting base has a tubular rectangular heat exchange groove inside, one end of the heat exchange groove is connected to an air inlet, and multiple air jet holes are equally spaced on the heat exchange groove, with the air jet holes facing the lower end of the filter.

[0010] Preferably, the heat dissipation component includes a mounting groove extending through both sides of the housing and a cross-shaped mounting plate located on the inner wall of the mounting groove. A motor is mounted on one side of the cross-shaped mounting plate, and a turbine fan blade is mounted on the output shaft of the motor. The turbine fan blade is located on the other side of the cross-shaped mounting plate.

[0011] Preferably, a pressurizing pipe is installed on the inner side of one side of the mounting groove, and the other end of the pressurizing pipe is connected to the air inlet, and the pressurizing pipe is conical.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. By combining an insulating layer and an anti-interference coating on the inner wall of the housing, a multi-layered anti-interference barrier is formed, improving the overall anti-interference effect of the housing and thus achieving all-round anti-interference protection for the filter. Furthermore, the combination of thermal grease, thermal fins, and turbine blades facilitates the rapid conduction and dissipation of heat generated during filter operation, improving heat dissipation efficiency. Simultaneously, the motor drives the turbine blades to rotate, enhancing airflow and heat exchange within the housing, further improving heat dissipation efficiency and enabling effective cooling of the filter. Ultimately, this solves the problems of insufficient anti-interference capability and poor heat dissipation in anti-interference filter components. 2. By establishing a thermal balance equation through the analysis module and combining parameters such as the probe's own heating power and the thermal resistance between probes, the true temperature can be deduced. This method can accurately obtain the true temperature of the component, providing key temperature information for evaluating component performance and predicting potential faults. It helps to detect overheating or overcooling problems of components in a timely manner and ensures the stable operation of the filter assembly. It clarifies the relationship between component energy consumption and temperature, and can more accurately control heat dissipation and energy saving based on the energy consumption change patterns in different temperature ranges. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall appearance of the component proposed in this invention; Figure 2 This is a schematic diagram of the internal structure of the component proposed in this invention; Figure 3 This is a schematic diagram of the overall cross-sectional structure of the component proposed in this invention; Figure 4 This is a schematic diagram of the heat exchange tank structure proposed in this invention; Figure 5 This is a schematic diagram of the turbine blade structure proposed in this invention; Figure 6 The present invention proposes Figure 3 Schematic diagram of the structure of part A in the middle; Figure 7 This is a flowchart of the system proposed in this invention.

[0014] The numbers in the diagram are: 1. Housing; 2. Ear plate; 3. Mounting base; 4. Filter; 5. Insulation layer; 6. Anti-interference coating; 7. Thermal grease; 8. Heat exchanger groove; 9. Thermal fins; 10. Cross mounting plate; 11. Motor; 12. Turbine fan blade; 13. Air inlet; 14. Pressurization pipe; 15. Anti-interference magnetic ring. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0016] Example 1: See Figures 1 to 6 The anti-interference filter assembly of this invention includes a housing 1, which facilitates the installation of a mounting base 3. Ear plates 2 are fixed to the bottom of both sides of the housing 1, allowing the assembly to be installed at a designated location. The mounting base 3 is installed inside the housing 1, facilitating the installation of a filter 4. The filter 4 is mounted on the upper end of the mounting base 3 using bolts at its four corners. Terminals are installed at both ends of the filter 4, with the other end of each terminal penetrating through the housing 1. An anti-interference component is installed on the housing 1, and a heat dissipation component is installed inside the housing 1. The anti-interference component includes an insulating layer 5 installed on the inner wall of the housing 1, which helps prevent short circuits from damaging external devices. An anti-interference coating 6 is installed on the inner wall of the insulating layer 5, which improves the anti-interference effect of the housing 1. Furthermore, an anti-interference magnetic ring 15 is installed on the outside of the wiring terminal, which facilitates the anti-interference effect at the wiring terminal; one end of the anti-interference magnetic ring 15 is threaded to the housing 1, and thermal grease 7 is applied between the top surface of the mounting base 3 and the bottom surface of the filter 4, which facilitates the heat dissipation effect of the filter 4; and multiple thermal fins 9 are fixed at equal intervals on both sides of the mounting base 3, which facilitates the heat dissipation of the filter 4 in conjunction with the mounting base 3; a tubular rectangular heat exchange groove 8 is opened inside the mounting base 3, which facilitates the guidance of the external low-temperature airflow to the bottom of the filter 4; an air inlet 13 is connected to one end of the heat exchange groove 8, which facilitates the connection of the pressurization pipe 14; and multiple air jet holes are opened at equal intervals on the heat exchange groove 8, with the air jet holes facing the lower end of the filter 4.

[0017] In this invention, the heat dissipation component includes a mounting groove extending through both sides of the housing 1 and a cross-shaped mounting plate 10 located on the inner wall of the mounting groove. The cross-shaped mounting plate 10 facilitates the installation of a motor 11 and a turbine fan blade 12. A motor 11 is mounted on one side of the cross-shaped mounting plate 10, which facilitates the driving of the turbine fan blade 12 to rotate. The turbine fan blade 12 is mounted on the output shaft of the motor 11, which facilitates the intake of low-temperature airflow from the outside into the heat exchange groove 8 and the discharge of high-temperature gas from inside the housing 1. The turbine fan blade 12 is located on the other side of the cross-shaped mounting plate 10, and a pressurizing pipe 14 is mounted on the inner side of one mounting groove. The conical pressurizing pipe 14 facilitates the compression and pressurization of the low-temperature gas so that it can be ejected through the jet hole. The other end of the pressurizing pipe 14 is connected to the air inlet 13, and the pressurizing pipe 14 is conical.

[0018] Example 2: See Figure 7 The housing 1 also contains an intelligent control module, which includes a data acquisition unit, an analysis unit, and an execution unit. The acquisition unit collects temperature data from the temperature probe and the environment, and transmits the collected temperature data to the analysis module; The analysis unit receives the temperature data transmitted from the acquisition module, performs data preprocessing, analyzes the preprocessed temperature data, obtains the real temperature data of the internal components of the filter assembly, analyzes the energy consumption of the corresponding components at the corresponding temperature based on the temperature data, obtains the total energy consumption of each component at the detected temperature and the real temperature, compares it with the preset total energy consumption threshold, generates a heat dissipation signal or a cooling signal, and transmits the heat dissipation signal and cooling signal to the execution module. Temperature detection points are set at the locations of each component inside the anti-interference filter assembly within the housing 1. Temperature probes are installed at these detection points to detect temperature data at the center of the component. The temperature data detected by each probe is recorded, and the data detected by each probe at the same time is recorded. Averaging the temperature data and standard deviation The calculation, and the mean obtained from the calculation. and standard deviation Test the temperature data fluctuation range The settings include: marking detected temperature data outside the fluctuation range as outliers; and specifying the number of outliers as such. If the outlier is not found, the temperature data is determined to be abnormal, and the data detection operation is repeated; otherwise, the outlier is removed, and the remaining temperature data is averaged. The calculation, and the mean This serves as the temperature data detected at the corresponding moment. Multiple temperature probes are installed inside the housing 1, and there is mutual interference between the temperature probes; temperature probes Detected temperature data , For ambient temperature, probe Transmitted to probe The equivalent thermal power, probe Its own heat generation power, The thermal resistance between the temperature probe and the environment; since interference is mutual, the final temperature data corresponding to the temperature probe after interference. , , For the first The temperature values ​​detected by adjacent temperature probes after interference. For the first The temperature probe and the first Thermal conductivity resistance between adjacent temperature probes; Known probe Self-heating power (Obtained through calibration experiments, such as the relationship between probe power consumption and temperature under static conditions), inter-probe thermal resistance. (Determined by installation spacing and medium characteristics, which can be measured through material manuals or experiments), and the detection temperature after interference. Combining the heat balance equations, we get: , The ambient temperature is obtained through a reference temperature sensor located far from the probe, or calibrated in an area free from probe interference; this is combined with an interference model. By reverse deduction: That is, when the temperature data detected by the corresponding temperature probe is At that time, the actual temperature data of the component corresponding to the temperature probe is ; The internal resistance of a component increases with increasing temperature; the increased internal resistance... , Initial temperature The internal resistance below, The temperature coefficient of the internal resistance of the corresponding component; the energy conversion efficiency of the corresponding component. , Useful power consumption is the basic power consumption for the filter to function; total power consumption. , This is useless power consumption; Through temperature-internal resistance calibration experiments, the internal resistance of the component was measured at different temperatures (covering the component's operating range) to establish a linear relationship between the internal resistance R and temperature T. The result was obtained through linear fitting calculation. ; The temperature fluctuation of the components is within a reasonable range. When the time is short, the impact on the components is relatively small; when hour, , This is the operating current; ; scope Based on the reliability test data of components (such as filters, capacitors, and inductors), determine their "normal performance temperature range" (e.g., electronic components are typically -40℃ to 85℃, but this varies depending on the model). when hour, ,in Power consumption related to carrier mobility ( This is a coefficient related to power consumption based on carrier mobility. To activate energy, (where Boltzmann constant is used) For dielectric loss and other temperature-related power consumption ( , (The fitting coefficients are related to the component material). In the low temperature range ( Low-temperature energy consumption tests were conducted, measuring the power consumption related to carrier mobility at different temperatures, and combining this with thermodynamic models. Determined through nonlinear fitting and ( (Typical values ​​can also be referenced in the material handbook); through dielectric loss experiments, the dielectric loss power was measured at different temperatures, based on a power-law model. Fit the data to determine (proportionality coefficient) and (Power order, reflecting temperature sensitivity); when hour, ; For each component within the filter assembly at corresponding time points The energy consumption data is acquired and summed to obtain the total energy consumption data of each component. When the total energy consumption data corresponding to the detected temperature data At that time, a heat dissipation signal is generated and transmitted to the execution module. This is a preset total energy consumption threshold; when the total energy consumption data corresponds to the actual temperature data... Time (detected temperature data) (Based on real temperature data), a cooling signal is generated and transmitted to the execution module; There are two ways to obtain the rated power consumption parameters in the component datasheet, combined with the overall heat dissipation capacity of the component design; the other is to conduct extreme operating condition tests (such as full load operation) to record the maximum total energy consumption of the component without performance degradation or damage, and use this as a basis for setting the power consumption. (Usually leave a 10%-20% safety margin); After receiving the heat dissipation signal, the execution module starts the motor 11, which drives the turbine fan blade 12 to rotate at the set base speed to draw in the ambient low temperature air. After being compressed and pressurized by the pressurization pipe 14, the air enters the heat exchange tank 8 through the air inlet 13 and is blown from the jet hole to the bottom of the filter 4, accelerating the heat exchange between the low temperature gas and the surface of the filter 4 to achieve heat dissipation. After receiving the cooling signal, the execution module starts the motor 11, which drives the turbine fan blade 12 to rotate at a set enhanced speed for heat dissipation. If the temperature drop inside the filter component is less than the preset drop threshold within a set time period, the cooling operation is performed by the semiconductor cooling chip inside the intelligent control component while the turbine fan blade 12 is rotating.

[0019] Working Principle: In the use of this invention, the entire assembly is first installed at the designated location by the ear plates 2 fixed to the bottom of both sides of the housing 1. Then, the anti-interference magnetic ring 15, which is installed on the outside of the wiring terminal and has one end threaded to the housing 1, is opened. The power supply and the wiring terminals of the filter 4, which pass through the housing 1, are connected. At this time, the electrical equipment inside the assembly is started. The insulation layer 5 on the inner wall of the housing 1 can prevent the device from short-circuiting and causing damage to external devices. The anti-interference coating 6 on the inner wall of the insulation layer 5 can improve the anti-interference effect inside the housing 1. At the same time, the anti-interference magnetic ring 15 can enhance the anti-interference effect at the wiring terminal, together ensuring that the assembly is not affected by external interference and operates stably. During the operation of the filter 4, a large amount of heat is generated. At this time, the motor 11, which is fixed in the mounting slot on one side of the housing 1 by the cross mounting plate 10, is started. Its output shaft drives the turbine fan blade 12 located on the other side of the cross mounting plate 10 to rotate, thereby cooling the external environment. Air is drawn into the conical pressurization pipe 14 installed on the inner side of the mounting slot. After being compressed and pressurized at the narrow opening of the pressurization pipe 14, the air enters the tubular rectangular heat exchange slot 8 inside the mounting base 3 through the air inlet 13 connected to the pressurization pipe 14. The air is then blown towards the bottom of the filter 4 through multiple jet holes equidistantly opened on the heat exchange slot 8, achieving heat exchange between the low-temperature gas and the high-temperature surface of the filter 4. At the same time, the thermal grease 7 applied between the top surface of the mounting base 3 and the bottom surface of the filter 4 enhances the heat transfer efficiency. Multiple thermal fins 9 equidistantly fixed on both sides of the mounting base 3 work together with the mounting base 3 to conduct some of the heat from the filter 4. Meanwhile, the cross mounting plate 10, motor 11 and turbine fan blade 12 in the mounting slot on the other side of the housing 1 work synchronously to discharge the high-temperature gas inside the housing 1 in a timely manner, thereby continuously maintaining the good operating temperature of the filter 4 and ensuring stable operation of the components until the end of use.

[0020] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An anti-interference filter assembly, comprising a housing (1), characterized in that: Ear plates (2) are fixed to the bottom of both sides of the housing (1), and mounting bases (3) are installed inside the housing (1). Filters (4) are installed on the upper end of the mounting bases (3) by bolts at the four corners. Both ends of the filter (4) are equipped with terminals. The other end of the terminals penetrates through the housing (1). Anti-interference components are installed on the housing (1), and heat dissipation components are installed inside the housing (1). The shell (1) is also equipped with an intelligent control module, which includes a data acquisition unit, an analysis unit and an execution unit; The acquisition unit collects temperature data from the temperature probe and the environment, and transmits the collected temperature data to the analysis module; The analysis unit receives the temperature data transmitted from the acquisition module, performs data preprocessing, analyzes the preprocessed temperature data, obtains the real temperature data of the internal components of the filter assembly, analyzes the energy consumption of the corresponding components at the corresponding temperature based on the temperature data, obtains the total energy consumption of each component at the detected temperature and the real temperature, compares it with the preset total energy consumption threshold, generates a heat dissipation signal or a cooling signal, and transmits the heat dissipation signal and cooling signal to the execution module. The execution module receives signals from the analysis module and performs corresponding operations.

2. The anti-interference filter assembly according to claim 1, characterized in that: The analysis module performs the following steps to analyze temperature data: S1: Temperature probe Detected temperature data , For ambient temperature, probe Transmitted to probe The equivalent thermal power, probe Its own heat generation power, The thermal resistance between the temperature probe and the environment; since interference is mutual, the final temperature data corresponding to the temperature probe after interference. , , For the first The temperature values ​​detected by adjacent temperature probes after interference. For the first The temperature probe and the first Thermal conductivity resistance between adjacent temperature probes; S2: According to the probe Self-heating power Thermal resistance between probes and the detection temperature after interference The actual temperature data are obtained by solving the simultaneous heat balance equations. Combined with interference model By reverse deduction: .

3. The anti-interference filter assembly according to claim 5, characterized in that: The analysis module performs the following steps to analyze the energy consumption corresponding to the temperature data: K1: The internal resistance of the component increases with increasing temperature; the increased internal resistance... , Initial temperature The internal resistance below, The temperature coefficient of the internal resistance of the corresponding component; the energy conversion efficiency of the corresponding component. , Useful power consumption; Total power consumption , This is useless power consumption; K2: The temperature fluctuation of the component is within a reasonable range. When the time is short, the impact on the components is relatively small, that is, when At that time, the total power consumption is ;when hour, The total power consumption is ;when At that time, the total power consumption is ; K3: For the corresponding time points of each component within the filter assembly The energy consumption data is acquired and summed to obtain the total energy consumption data of each component. When the total energy consumption data corresponding to the detected temperature data At that time, a heat dissipation signal is generated and transmitted to the execution module. This is a preset total energy consumption threshold; when the total energy consumption data corresponds to the actual temperature data... Time (detected temperature data) (Based on real temperature data), a cooling signal is generated and transmitted to the execution module.

4. The anti-interference filter assembly according to claim 1, characterized in that: The anti-interference component includes an insulating layer (5) installed on the inner wall of the housing (1), an anti-interference coating (6) installed on the inner wall of the insulating layer (5), and an anti-interference magnetic ring (15) installed on the outer side of the terminal, one end of the anti-interference magnetic ring (15) being threadedly connected to the housing (1).

5. The anti-interference filter assembly according to claim 1, characterized in that: Thermal grease (7) is applied between the top surface of the mounting base (3) and the bottom surface of the filter (4), and multiple thermal fins (9) are fixed at equal intervals on both sides of the mounting base (3).

6. The anti-interference filter assembly according to claim 1, characterized in that: The mounting base (3) has a tubular rectangular heat exchange groove (8) inside. One end of the heat exchange groove (8) is connected to an air inlet (13), and multiple air jet holes are equally spaced on the heat exchange groove (8). The air jet holes face the lower end of the filter (4).

7. The anti-interference filter assembly according to claim 1, characterized in that: The heat dissipation component includes a mounting groove that runs through both sides of the housing (1) and a cross mounting plate (10) located on the inner wall of the mounting groove. A motor (11) is mounted on one side of the cross mounting plate (10), and a turbine fan blade (12) is mounted on the output shaft of the motor (11). The turbine fan blade (12) is located on the other side of the cross mounting plate (10).

8. The anti-interference filter assembly according to claim 7, characterized in that: A pressurizing pipe (14) is installed on the inner side of the mounting groove on one side. The other end of the pressurizing pipe (14) is connected to the air inlet (13), and the pressurizing pipe (14) is conical.

Images