Harmonic analyzer with moisture-proof function

Abstract

The utility model discloses a harmonic analyzer with a moisture-proof function. The harmonic analyzer comprises a mounting shell, an electronic component and a moisture absorption piece, the moisture absorption piece comprises a barrel body, a partition plate and a moisture absorption material; a top air outlet groove is formed in the top of the barrel, and a bottom air inlet groove is formed in the bottom of the barrel and communicates with the air inlet; every two partition plates form a group, and a plurality of groups of partition plates are arranged in the barrel body; the two partition plates in each group are symmetrically arranged, and a moisture absorption bin is formed between the two partition plates; a stock bin is formed between every two adjacent groups of partition plates or between the partition plates and the inner wall of the barrel, and moisture absorption materials are arranged in the stock bins. The top air outlet groove and the bottom air inlet groove are both communicated with the moisture absorption bin; a plurality of contact gaps are uniformly formed in the partition plate; slow flow baffles are further arranged in the moisture absorption bin and arranged on the two sides in the moisture absorption bin in a staggered mode. Due to the design of the moisture absorption piece, the humidity of air entering the mounting shell can be effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of harmonic analyzers, in particular to a harmonic analyzer with a moisture-proof function. Background Art

[0002] A harmonic analyzer is an instrument used to detect and analyze harmonics in power systems. In power systems, current and voltage waveforms may contain harmonic components of different frequencies, which can have adverse effects on power equipment and systems, such as causing equipment damage, increased energy loss, and decreased grid stability. By sampling, processing, and analyzing current and voltage waveforms, a harmonic analyzer can accurately detect and identify harmonics of various orders in a power system, including information such as the frequency, amplitude, and phase of the harmonics. The harmonic analyzer can monitor the harmonics in a power system in real time, helping engineers understand the operating status of the system, identify problems in a timely manner, and take appropriate measures to adjust and optimize. Harmonic analyzers play an important role in the design, operation, and maintenance of power systems, and can help improve the reliability, stability, and efficiency of the system, ensure the normal operation of power equipment, and extend the service life of the equipment.

[0003] The research on harmonic current test technology of mains power supply equipment refers to the technical research on testing and analyzing the harmonic current generated by mains power supply equipment in actual operation. In the power system, mains power supply equipment such as transformers, generators, cables, etc. will be affected by harmonic currents during operation. These harmonic currents may cause problems such as equipment overheating, damage, and even system instability. The purpose of the harmonic current test technology research is to understand the harmonic current characteristics of mains power supply equipment under different working conditions through experiments and tests, including harmonic frequency, amplitude, phase and other information. By testing and studying harmonic currents, the tolerance of equipment to harmonics can be evaluated, and corresponding protection and improvement measures can be formulated to ensure the safe and stable operation of equipment and systems. This study includes field testing, data collection and analysis of mains power supply equipment, as well as combining theoretical models and simulation technology to explore the source, propagation path and impact of harmonic currents, and provide technical support and reference for optimizing equipment design and improving system operation. Through the research on harmonic current test technology of mains power supply equipment, the stability and reliability of the power system can be improved, and the power supply quality and safe operation of equipment can be guaranteed. The indispensable equipment in the harmonic current test of mains power supply equipment is the harmonic analyzer. The harmonic analyzer contains various electronic components and circuit boards, such as sensors, chips, capacitors, etc. These components are very sensitive to moisture and humidity. Moisture can cause corrosion, short circuit or damage to components, affecting the accuracy and stability of the instrument. In the rainy season in southern my country, the indoor humidity is very heavy, and moisture can easily enter the interior of the harmonic analyzer through the air cooling system of the harmonic analyzer, thereby affecting the electronic components and circuit boards inside the harmonic analyzer.

[0004] The patent with publication number CN112129974A discloses an internal moisture-proof structure of an electric energy analyzer, which achieves a dehumidification effect by arranging absorbent cotton in the ventilation channel of the electric energy analyzer to absorb moisture in the air. This structure is simple and reasonable, and can absorb part of the moisture in the air. However, the water absorption effect of the absorbent cotton is limited, and the contact area between the air and the absorbent cotton is small when passing through the absorbent cotton. The absorbent cotton cannot effectively absorb moisture in the air, resulting in poor water absorption effect, that is, poor dehumidification effect. Utility Model Content

[0005] The purpose of the utility model is to provide a harmonic analyzer with moisture-proof function to solve the following technical problems raised in the background technology:

[0006] Moisture can easily enter the interior of the harmonic analyzer through the air cooling system of the harmonic analyzer, thereby affecting the electronic components and circuit boards inside the harmonic analyzer.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A harmonic analyzer with moisture-proof function, comprising a mounting shell, electronic components and a moisture absorber; an air inlet and an air outlet are arranged on the outside of the mounting shell, fans are arranged in the air inlet and the air outlet, and the electronic components and the moisture absorber are arranged in the mounting shell;

[0009] The moisture absorbing member comprises a cylinder, a partition plate and a moisture absorbing material; a top air outlet groove is arranged at the top of the cylinder, a bottom air inlet groove is arranged at the bottom, and the bottom air inlet groove is connected with the air inlet;

[0010] Two partition plates form a group, and multiple groups of partition plates are arranged in the cylinder; the two partition plates in each group are symmetrically arranged and a moisture absorption bin is formed between the two partition plates; a material bin is formed between two adjacent groups of partition plates or between the partition plate and the inner wall of the cylinder, and the moisture absorption material is arranged in the material bin; the top air outlet groove and the bottom air inlet groove are both connected to the moisture absorption bin; a number of contact gaps are evenly arranged on the partition plates; a slow flow baffle is also arranged in the moisture absorption bin, and the slow flow baffle is staggered on both sides of the moisture absorption bin.

[0011] Furthermore, a mounting base plate is fixedly connected to one side of the mounting shell near the bottom, and the internal cavity of the mounting shell is divided into a mounting chamber and a ventilation chamber by the mounting base plate; an inner air inlet and an inner air outlet are arranged on the mounting base plate; the electronic components are arranged in the mounting chamber, and the moisture absorbent is arranged in the ventilation chamber.

[0012] Furthermore, the ventilation chamber is provided with an isolation plate, which separates the ventilation chamber into three cavities: an air inlet chamber, a left chamber and a right chamber; wherein a through opening is provided between the left chamber and the air inlet chamber, the air inlet chamber is connected with the left chamber through the through opening, and the air inlet chamber is also connected with the installation chamber through the air inlet inner opening; the left chamber is connected with the air inlet, and the right chamber is connected with the air outlet; a reversing channel is provided between the left chamber and the right chamber, and the left chamber and the right chamber are connected through the reversing channel;

[0013] The front and rear sides of the hygroscopic component are opened; a limiting sealing baffle is arranged in the middle of the left bin, the hygroscopic component is arranged between the limiting sealing baffles, and the limiting sealing baffles are used to seal the front and rear openings of the hygroscopic component; the position of the through opening is located on the top of the partition between the limiting sealing baffles; the bottom of the right bin is provided with a limiting sealing bottom plate for sealing the bottom air inlet groove, and the right bin is connected with the installation bin through the inner air outlet.

[0014] Furthermore, an intermediate plate is provided on the top of the left bin and the right bin, and a sliding groove is provided on the intermediate plate; a driving screw is also rotatably connected to the intermediate plate; connecting seats are fixedly connected to both sides of the top of the hygroscopic component, the connecting seats are slidably connected to the sliding groove and the connecting seats are threadedly connected to the driving screw.

[0015] Furthermore, one side of the driving screw is connected to a driving motor, and the driving motor is a servo motor.

[0016] Furthermore, detachable material baffle plates are connected to the front and rear sides of the silo.

[0017] Furthermore, at least two slow flow baffles are provided, and the inclination direction of the slow flow baffles is downward.

[0018] Furthermore, at least three groups of partition plates are arranged in the cylinder.

[0019] Furthermore, the moisture absorbing material is montmorillonite.

[0020] Furthermore, an air inlet filter window is arranged outside the air inlet, and an air outlet filter window is arranged outside the air outlet.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The partition plate in the cylinder of the utility model can effectively increase the contact area between air and hygroscopic material, and reducing the air flow rate by the slow flow baffle can be more conducive to the contact between air and hygroscopic material, thereby ensuring the hygroscopic effect. This design can effectively reduce the humidity of air entering the installation shell, thereby achieving heat dissipation without bringing in moisture, ensuring the normal operation of electronic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0025] Figure 3 This is the second schematic diagram of the internal structure of the utility model;

[0026] Figure 4 The third schematic diagram of the internal structure of the utility model;

[0027] Figure 5 It is a schematic diagram of the structure inside the bottom of the utility model;

[0028] Figure 6 This is a schematic diagram of the overall structure of the moisture absorbent member of the utility model;

[0029] Figure 7 This is the second schematic diagram of the overall structure of the moisture absorbent member of the present utility model.

[0030] Markings in the figure: 1-installation shell, 2-air outlet filter window, 3-air outlet, 4-air inlet filter window, 5-air inlet, 6-inner air inlet, 7-installation bottom plate, 8-installation bin, 9-air exchange bin, 901-air inlet bin, 902-left bin, 903-right bin, 10-hygroscopic component, 1001-cylinder, 1002-material baffle, 1003-hygroscopic bin, 1004-material bin, 1005-partitioning plate, 1006-contact gap, 1007-slow flow baffle, 1008-connecting seat, 1009-top air outlet groove, 1010-bottom air outlet groove, 11-driving motor, 12-driving screw, 13-through port, 14-isolation plate, 15-middle plate, 16-limit sealing plate, 17-reversing channel, 18-inner air outlet, 19-limit sealing baffle. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Example

[0033] A harmonic analyzer with moisture-proof function, such as Figures 1 to 7 As shown, it includes a mounting housing 1, electronic components and a moisture absorbent 10; an air inlet 5 and an air outlet 3 are arranged on the outside of the mounting housing 1, fans are arranged inside the air inlet 5 and the air outlet 3, and the electronic components and the moisture absorbent 10 are arranged inside the mounting housing 1;

[0034] like Figure 6 to Figure 7As shown, the moisture absorbent member 10 comprises a cylinder 1001, a partition plate 1005 and a moisture absorbent material; a top air outlet groove 1009 is provided at the top of the cylinder 1001, and a bottom air inlet groove is provided at the bottom, and the bottom air inlet groove is connected to the air inlet 5;

[0035] Two partition plates 1005 form a group, and multiple groups of partition plates 1005 are arranged in the cylinder 1001; the two partition plates 1005 in each group are symmetrically arranged and a moisture absorption bin 1003 is formed between the two partition plates 1005; a material bin 1004 is formed between two adjacent groups of partition plates 1005 or between the partition plate 1005 and the inner wall of the cylinder 1001, and the moisture absorption material is arranged in the material bin 1004; the top air outlet groove 1009 and the bottom air inlet groove are both connected to the moisture absorption bin 1003; a number of contact gaps 1006 are evenly arranged on the partition plates 1005; a slow flow baffle 1007 is also arranged in the moisture absorption bin 1003, and the slow flow baffle 1007 is staggered on both sides of the moisture absorption bin 1003.

[0036] Specifically, when the harmonic analyzer is in use, the fan in the air inlet 5 introduces the outside air, and the air then enters the installation shell 1 and passes through the hygroscopic component 10. The air first enters the hygroscopic bin 1003 in the cylinder 1001 through the bottom air inlet groove. The air in the hygroscopic bin 1003 slows down after encountering the slow flow baffle 1007. The slowed air contacts the hygroscopic material in the bin 1004 through the contact gap. The hygroscopic material absorbs moisture in the air. Then the air flows out through the top air outlet groove 1009 on the cylinder 1001. The air after flowing out contacts the electronic components and takes away the heat generated by the electronic components, and then is discharged through the air outlet 3. The design of the partition plate 1005 in the cylinder 1001 can effectively increase the contact area between the air and the hygroscopic material. Reducing the air flow rate through the slow flow baffle 1007 can be more conducive to the contact between the air and the hygroscopic material, thereby ensuring the hygroscopic effect. This design can effectively reduce the humidity of the air entering the installation housing 1, thereby achieving heat dissipation without bringing in moisture, thereby ensuring the normal operation of the electronic components.

[0037] In a preferred embodiment, if Figures 3 to 5As shown, a mounting base plate 7 is fixedly connected to one side of the mounting shell 1 near the bottom, and the internal cavity of the mounting shell 1 is divided into a mounting chamber 8 and a ventilation chamber 9 by the mounting base plate 7; an air inlet inner port 6 and an air outlet inner port 18 are provided on the mounting base plate 7; the electronic components are arranged in the mounting chamber 8, and the hygroscopic component 10 is arranged in the ventilation chamber 9. The design of the mounting base plate 7 is used to conveniently isolate the hygroscopic component 10 from the electronic components, which is conducive to the hygroscopic component 10 filtering moisture in the air. When in use, air enters the large-scale ventilation chamber 9 through the inlet port, and the hygroscopic component 10 in the ventilation chamber 9 absorbs moisture in the air. After absorbing moisture, the air enters the mounting chamber 8 through the air inlet inner port 6. The air enters the mounting chamber 8 and takes away the heat generated by the electronic components. The air that absorbs the heat returns to the ventilation chamber 9 through the air outlet inner port 18, and is finally discharged through the air outlet 3.

[0038] In a preferred embodiment, if Figures 3 to 5 As shown, the ventilation chamber 9 is provided with an isolation plate 14, which separates the ventilation chamber 9 into three cavities: an air inlet chamber 901, a left chamber 902 and a right chamber 903; wherein a through port 13 is provided between the left chamber 902 and the air inlet chamber 901, the air inlet chamber 901 is communicated with the left chamber 902 through the through port 13, and the air inlet chamber 901 is also communicated with the installation chamber 8 through the air inlet inner port 6; the left chamber 902 is communicated with the air inlet port 5, and the right chamber 903 is communicated with the air outlet port 3; a reversing channel 17 is provided between the left chamber 902 and the right chamber 903, and the left chamber 902 and the right chamber 903 are communicated with each other through the reversing channel 17;

[0039] The front and rear sides of the hygroscopic member 10 are open; Figure 6 to Figure 7 As shown, a limiting sealing baffle 19 is provided in the middle of the left bin 902, and the hygroscopic component 10 is provided between the limiting sealing baffles 19, and the limiting sealing baffles 19 are used to seal the openings on the front and rear sides of the hygroscopic component 10; the position of the through opening 13 is located at the top of the partition between the limiting sealing baffles 19; the bottom of the right bin 903 is provided with a limiting sealing bottom plate for sealing the bottom air inlet groove, and the right bin 903 is connected to the installation bin 8 through the inner air outlet 18.

[0040] This design is to facilitate the adjustment of the position of the hygroscopic member 10, so as to facilitate the drying of the hygroscopic member 10 by the air that has absorbed heat. Specifically, when the indoor air humidity is high, the hygroscopic member 10 is located in the left compartment 902. When the hygroscopic member 10 is located in the left compartment 902, the limiting sealing baffle 19 closes the openings on the front and rear sides of the hygroscopic member 10, so that air can only enter from the bottom inlet groove and be discharged from the top outlet groove 1009. The air enters the left bin 902 after passing through the air intake. The air entering the left bin 902 enters the interior of the hygroscopic component 10 from the bottom air intake groove at the bottom of the hygroscopic component 10. The hygroscopic material inside the hygroscopic component 10 absorbs moisture in the air. The air after absorbing moisture enters the top of the left bin 902 through the top air outlet groove 1009. The air enters the air intake bin 901 through the opening 13, and then enters the installation bin 8 through the air intake inner port 6. The air entering the installation bin 8 absorbs the heat generated by the electronic components. The air that absorbs the heat enters the right bin 903 through the air outlet inner port 18. The air after entering the right bin 903 is discharged through the air outlet 3. When the indoor humidity is low, the hygroscopic component 10 is moved to the right bin 903, and the limiting sealing bottom plate in the right bin 903 closes the bottom entrance of the hygroscopic component 10, so that the air can enter the cylinder 1001 through the opening on the rear side of the cylinder 1001, and then be discharged through the opening on the front side of the cylinder 1001, and finally be discharged to the outside through the air outlet 3. When the air passes through the cylinder 1001, the air with a higher temperature can dry the hygroscopic material, so as to facilitate the subsequent use of the hygroscopic material for dehumidification. In this process, the air will not be blocked and slowed down by the slow flow baffle 1007, thereby ensuring normal exhaust and heat dissipation. After entering, the air passes through the left bin 902 and the air inlet bin 901 in turn, and then enters the installation bin 8, and finally enters the right bin 903 through the air outlet inner port 18.

[0041] It should also be noted that if Figure 1 As shown, the distance between the air inlet 5 and the air outlet 3 is relatively close, in order to ensure that the temperature of the inlet air is not too low, so that the moisture in the air is not easy to condense.

[0042] In a preferred embodiment, if Figures 3 to 5As shown, the top of the left bin 902 and the right bin 903 is provided with an intermediate plate 15, and a sliding groove is provided on the intermediate plate 15; the intermediate plate 15 is also rotatably connected with a driving screw 12; the top two sides of the hygroscopic member 10 are fixedly connected with a connecting seat 1008, the connecting seat 1008 is slidably connected with the sliding groove, and the connecting seat 1008 is threadedly connected with the driving screw 12. Further optimized, one side of the driving screw 12 is connected to the driving motor 11, and the driving motor 11 adopts a servo motor. The design of the driving screw 12 is to facilitate the automatic adjustment of the position of the hygroscopic member 10, and the driving screw 12 is driven to rotate by the driving motor 11. Since the connecting seat 1008 is threadedly connected with the driving screw 12, and the connecting seat 1008 is restricted by the sliding groove, the connecting seat 1008 can drive the hygroscopic member 10 to move.

[0043] In a preferred embodiment, if Figure 6 to Figure 7 As shown, detachable material baffle plates 1002 are connected to the front and rear sides of the material bin 1004. The design of the detachable material baffle plates 1002 facilitates the replacement of the hygroscopic material in the material bin 1004.

[0044] In a preferred embodiment, if Figure 6 to Figure 7 As shown, at least two slow flow baffles 1007 are provided, and the slow flow baffles 1007 are inclined downward. The downward inclination is to ensure the blocking effect, so that the air is effectively slowed down.

[0045] In a preferred embodiment, if Figure 6 to Figure 7 As shown, at least three groups of partition plates 1005 are arranged in the cylinder 1001. The multiple groups of partition plates 1005 are arranged to ensure the moisture absorption effect.

[0046] In a preferred embodiment, the moisture absorbing material is montmorillonite, which can be heated to restore its moisture absorbing capacity and can be used repeatedly, thus saving costs.

[0047] In a preferred embodiment, if Figure 1 As shown, an air inlet filter window 4 is arranged outside the air inlet 5, and an air outlet filter window 2 is arranged outside the air outlet 3. The air inlet filter window 4 and the air outlet filter window 2 are used to prevent dust in the air from entering the installation housing 1 through the air inlet 5 or the air outlet 3.

[0048] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A harmonic analyzer with moisture-proof function, characterized in that: The invention comprises a mounting shell (1), electronic components and a moisture absorbing member (10); an air inlet (5) and an air outlet (3) are arranged on the outside of the mounting shell (1); fans are arranged inside the air inlet (5) and the air outlet (3); and the electronic components and the moisture absorbing member (10) are arranged inside the mounting shell (1); The moisture absorbing member (10) comprises a cylinder (1001), a partition plate (1005) and a moisture absorbing material; The top of the cylinder (1001) is provided with a top air outlet groove (1009), and the bottom is provided with a bottom air inlet groove, which is connected to the air inlet (5); Two partition plates (1005) form a group, and a plurality of groups of partition plates (1005) are arranged in the cylinder (1001); the two partition plates (1005) in each group are symmetrically arranged and a moisture absorption bin (1003) is formed between the two partition plates (1005); a material bin (1004) is formed between two adjacent groups of partition plates (1005) or between the partition plates (1005) and the inner wall of the cylinder (1001), and the moisture absorption material is arranged in the material bin (1004); the top air outlet groove (1009) and the bottom air inlet groove are both connected to the moisture absorption bin (1003); a plurality of contact gaps (1006) are evenly arranged on the partition plates (1005); a slow flow baffle (1007) is also arranged in the moisture absorption bin (1003), and the slow flow baffle (1007) is staggeredly arranged on both sides of the moisture absorption bin (1003).

2. The harmonic analyzer with moisture-proof function according to claim 1, characterized in that: A mounting base plate (7) is fixedly connected to one side of the mounting shell (1) close to the bottom, and the internal cavity of the mounting shell (1) is divided into a mounting chamber (8) and a ventilation chamber (9) by the mounting base plate (7); an air inlet (6) and an air outlet (18) are provided on the mounting base plate (7); the electronic components are arranged in the mounting chamber (8), and the moisture absorbent (10) is arranged in the ventilation chamber (9).

3. The harmonic analyzer with moisture-proof function according to claim 2, characterized in that: The ventilation chamber (9) is provided with an isolation plate (14), and the isolation plate (14) divides the ventilation chamber (9) into three cavities, namely, an air inlet chamber (901), a left chamber (902), and a right chamber (903); wherein a through opening (13) is provided between the left chamber (902) and the air inlet chamber (901), and the air inlet chamber (901) is connected to the left chamber (902) through the through opening (13), and the air inlet chamber (901) is also connected to the installation chamber (8) through the air inlet inner opening (6); the left chamber (902) is connected to the air inlet (5), and the right chamber (903) is connected to the air outlet (3); a reversing channel (17) is provided between the left chamber (902) and the right chamber (903), and the left chamber (902) and the right chamber (903) are connected through the reversing channel (17); The hygroscopic component (10) has openings on both the front and rear sides; a limited sealing baffle (19) is provided in the middle of the left bin (902), the hygroscopic component (10) is arranged between the limited sealing baffles (19), and the limited sealing baffles (19) are used to seal the openings on both the front and rear sides of the hygroscopic component (10); the position of the through opening (13) is located on the top of the partition between the limited sealing baffles (19); the bottom of the right bin (903) is provided with a limited sealing bottom plate for sealing the bottom air inlet groove, and the right bin (903) is connected to the installation bin (8) through the air outlet inner port (18).

4. The harmonic analyzer with moisture-proof function according to claim 3, characterized in that: An intermediate plate (15) is provided at the top of the left bin (902) and the right bin (903), and a sliding groove is provided on the intermediate plate (15); a driving screw (12) is also rotatably connected to the intermediate plate (15); connecting seats (1008) are fixedly connected to both sides of the top of the moisture absorbent member (10), and the connecting seat (1008) is slidably connected to the sliding groove and the connecting seat (1008) is threadedly connected to the driving screw (12).

5. The harmonic analyzer with moisture-proof function according to claim 4, characterized in that: One side of the driving screw rod (12) is connected to the driving motor (11), and the driving motor (11) is a servo motor.

6. The harmonic analyzer with moisture-proof function according to claim 1, characterized in that: Removable material blocking plates (1002) are connected to the front and rear sides of the material bin (1004).

7. The harmonic analyzer with moisture-proof function according to claim 1, characterized in that: At least two slow-flow baffles (1007) are provided, and the slow-flow baffles (1007) are inclined downward.

8. The harmonic analyzer with moisture-proof function according to claim 1, characterized in that: At least three groups of partition plates (1005) are arranged in the cylinder (1001).

9. The harmonic analyzer with moisture-proof function according to claim 1, characterized in that: The moisture absorbing material is montmorillonite.

10. The harmonic analyzer with moisture-proof function according to claim 1, characterized in that: An air inlet filter window (4) is arranged outside the air inlet (5), and an air outlet filter window (2) is arranged outside the air outlet (3).

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