Air purification device return air opening

Abstract

The utility model discloses an air purification equipment return air opening relates to air purification technical field, and its technical scheme main points are: ionization module, including setting in the ionization frame of frame, the inside still being equipped with discharge rod of frame, the discharge rod is below ionization frame, dust collection module, including setting in the positive plate and negative plate of frame inside, the positive plate and negative plate are formed through the concave -convex structure plug -in, and the effect is through the interval column of contact module forced separation and non -contact elastic conduction design, and the step -type insulation outer frame of ionization module and discharge area physical isolation make that high -voltage leakage risk reduces, and ionization module forms focusing corona field at electrode tip, makes particulate matter charging efficiency promotion, and dust collection module makes the directional displacement of particulate matter in air along the direction of electric field and is collected in the adsorption of the bottom of pole plate under the driving of coulomb force, and the carbon nanotube on the surface of pole plate can release dense electron beam under the action of electric field, strengthens the sterilization effect of product.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and more specifically, to a return air vent for an air purification device. Background Technology

[0002] Air purification equipment (also known as "air cleaning equipment" or "air freshener") refers to products that can filter out or kill air pollutants and effectively improve air cleanliness. They are mainly household and commercial air purification equipment used to remove indoor air pollution. Some equipment with air purification functions usually have a return air vent to clean dust and microorganisms in the air.

[0003] In existing air purification return air inlets, the dust collection area often uses a structure with metal plates or conductors wrapped in insulators. This poses a safety hazard during use. If the plates are deformed or damaged, they are prone to short circuits, arcing, and burning due to moisture after high voltage is applied. Excessive spacing between the metal plates also weakens the Coulomb force.

[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a return air outlet for an air purification device. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a return air vent for an air purification device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an air return vent for an air purification device, comprising a frame, a filter screen on the frame, and an electrode portion for supplying power to the device on one side of the frame, and further comprising:

[0007] An ionization module that charges particulate matter such as dust and microorganisms in the air includes an ionization frame set inside a frame, and a discharge rod is also provided inside the frame, with the discharge rod located below the ionization frame.

[0008] The dust collection module is used to collect particulate matter such as dust and microorganisms in the air. It includes a positive electrode plate and a negative electrode plate set inside the frame. The positive electrode plate and the negative electrode plate are connected by a concave-convex structure to form a parallel electrode plate array.

[0009] The contact module is used to connect to a power source to supply power to the device, and includes contacts disposed inside the electrode section, wherein the lower end of the contacts is provided with an elastic contact piece.

[0010] Preferably, the frame is provided with a first outer frame member, which is divided into an F-shaped part and an L-shaped part. The F-shaped part has an interlayer that engages the ionization frame, and the L-shaped part engages the discharge rod. Both the F-shaped part and the L-shaped part are made of PVC insulating material.

[0011] Preferably, the frame includes a second outer frame member, which is symmetrically arranged to engage the positive electrode plate and the negative electrode plate respectively.

[0012] Preferably, the discharge rod is provided with multiple discharge electrodes, and the elastic contact is connected to the discharge electrodes through a wire.

[0013] Preferably, the positive electrode plate and the negative electrode plate are integrally injection molded from carbon nanotube engineering plastic composite material, and their surfaces form a dense carbon nanotube protrusion structure.

[0014] Preferably, the electrode part is provided with a baffle, the baffle is provided with a spacer post, the spacer post is used to fix the distance between the baffle and the inner wall of the electrode part, the contact is fixedly installed on the baffle, and a circular through hole is opened on the baffle at the position corresponding to the contact to provide a moving position for the elastic contact piece.

[0015] 1. In this utility model, the forced separation of the spacer columns of the contact module and the non-contact elastic conduction design, combined with the stepped insulating outer frame of the ionization module and the physical isolation of the discharge area, reduce the risk of high voltage leakage. At the same time, the ionization module forms a focused corona field at the electrode tip, which improves the charging efficiency of particulate matter. The non-metallic electrode array of the dust collection module induces a local high-intensity electric field through the dense carbon nanoparticle tip protrusions on the surface, causing the particulate matter in the air to be driven by the Coulomb force to generate directional displacement along the electric field direction and be adsorbed on the bottom of the electrode for collection.

[0016] 2. In this utility model, the ionization frame is connected to the middle interlayer of the F-shaped part by tenon and tenon, and the discharge rod is connected to the L-shaped part by tenon and tenon, so that the position of the ionization frame and the discharge rod is precisely fixed. At the same time, the tool-free disassembly and assembly structure of the plug-in electrode array of the second outer frame reduces the difficulty of disassembling the device and improves the user's cleaning efficiency of the equipment. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is a schematic diagram of the microstructure of the positive and negative electrode plates in this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the present invention, shown in the split side view.

[0024] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0025] Figure 8 for Figure 6 Enlarged view of point C in the middle;

[0026] Figure 9 This is a cross-sectional view of the first outer frame and the second outer frame in this utility model;

[0027] Figure 10 This is a schematic diagram of the electrode section in this utility model;

[0028] Figure 11 This is a schematic diagram of the structure of the elastic contact piece inside the electrode section in this utility model;

[0029] Figure 12 This is a schematic diagram of the positive electrode plate in this utility model;

[0030] Figure 13 This is a schematic diagram of the negative electrode plate in this utility model.

[0031] 1. Frame; 2. Filter screen; 3. Electrode part; 4. Ionization frame; 5. Discharge rod; 6. Positive electrode plate; 7. Negative electrode plate; 8. Protruding structure; 9. First outer frame; 10. F-shaped part; 11. L-shaped part; 12. Second outer frame; 13. Baffle; 14. Contact point; 15. Elastic contact piece; 16. Spacer post. Detailed Implementation

[0032] like Figures 1-13 As shown, this utility model provides an air return vent for an air purification device, including a frame 1, a filter 2 mounted on the frame 1, and an electrode 3 for supplying power to the device on one side of the frame 1. It also includes:

[0033] The contact 14 module is used to connect to the power supply to power the device. It includes a contact 14 disposed inside the electrode part 3. The lower end of the contact 14 is provided with an elastic contact piece 15. The electrode part 3 is provided with a baffle 13. The baffle 13 is provided with a spacer post 16. The spacer post 16 is used to fix the distance between the baffle 13 and the inner wall of the electrode part 3. The contact 14 is fixedly installed on the baffle 13. A circular through hole is opened on the baffle 13 corresponding to the position of the contact 14 to provide a moving position for the elastic contact piece 15. It should be noted that the diameter of the circular through hole is smaller than the width of the contact piece, which restricts the contact piece to move only along the axial direction and avoids accidental short circuit caused by lateral displacement.

[0034] After the contact 14 module is assembled, the electrode part 3 is equipped with a power supply and the power connector applies a thrust of ≥10N to the contact 14. The elastic contact piece 15 is deformed under pressure until it is in contact with the metal surface of the wire connector and conducts electricity. The spacer 16 forcibly separates the gap to a safe threshold.

[0035] The ionization module charges particulate matter such as dust and microorganisms in the air. It includes an ionization frame 4 set inside a frame 1. The frame 1 also has a discharge rod 5 located below the ionization frame 4. The discharge rod 5 has multiple discharge electrodes. The elastic contact 15 is connected to the discharge electrodes through wires. The frame 1 has a first outer frame 9, which is divided into an F-shaped part 10 and an L-shaped part 11. The F-shaped part 10 has a middle layer that engages with the ionization frame 4, and the L-shaped part 11 engages with the discharge rod 5. Both the F-shaped part 10 and the L-shaped part 11 are insulating layers. The first outer frame 9 is constructed by combining the F-shaped part and the L-shaped part made of PVC material with a metal frame made of metal material.

[0036] It should be noted that the first outer frame 9, through the stepped design of the F-shaped part 10 and the L-shaped part 11, increases the insulation of the PVC material and increases the creepage distance, physically isolating the discharge area from the external environment, blocking the high-voltage leakage path, making it safer and more reliable. At the same time, the middle layer of the F-shaped part 10 is tenoned into the ionization frame 4, and the L-shaped part 11 is tenoned into the discharge rod 5, accurately fixing the position of the ionization frame 4 and the discharge rod 5, making the electrode discharge stable, and ensuring that a stable electric field concentration area is formed between the electrode tip and the ionization frame 4.

[0037] The elastic contact 15 is energized through the metal surface of the contact wire connector to the discharge electrode. When the electrode is energized, the electric field forms a corona discharge in the air gap between the electrode tip and the ionization frame 4, causing the air particles passing through this area to become charged.

[0038] The dust collection module is used to collect particulate matter such as dust and microorganisms in the air. It includes a positive electrode plate 6 and a negative electrode plate 7 set inside the frame 1. The positive electrode plate 6 and the negative electrode plate 7 are connected by a concave-convex structure to form a parallel electrode plate array. The frame 1 is provided with a second outer frame 12. The second outer frame 12 is symmetrically arranged to engage the positive electrode plate 6 and the negative electrode plate 7 respectively. The positive electrode plate 6 and the negative electrode plate 7 are integrally injection molded from carbon nanotube composite material, and their surfaces form a dense carbon nanotube protrusion structure.

[0039] The positive electrode 6 and the negative electrode 7 are connected by a concave-convex structure to form a parallel electrode array. After being energized, a uniform high-voltage electric field is established between the electrodes. The continuous protrusions 8 on the surface of the positive and negative electrodes 7 enhance the local electric field strength through the geometric acute angle effect, thereby improving the particle adsorption efficiency. After being energized, the tip of the protrusion generates a clustered electron emission with a local electric field strength ≥3kV / mm, which makes a uniform gradient electric field form between the electrodes. The particles in the air are driven by the Coulomb force to generate directional displacement along the direction of the electric field and are adsorbed at the bottom of the electrodes for collection.

[0040] After the contact 14 module is assembled, the electrode part 3 is equipped with a power supply and the power connector applies a thrust of ≥10N to the contact 14. The elastic contact 15 is deformed under pressure until it is in contact with the metal surface of the wire connector and conducts electricity. The elastic contact 15 conducts electricity to the discharge electrode through the metal surface of the contact wire connector. When the electrode is energized, the electric field forms a corona discharge in the air gap between the electrode tip and the ionization frame 4, which charges the air particles passing through this area. At the same time, a local electric field strength of ≥3kV / mm is generated at the protruding tip to generate focused electron emission, so that a uniform gradient electric field is formed between the plates. The air particles are driven by the Coulomb force to generate directional displacement along the direction of the electric field and are adsorbed on the bottom of the plates for collection.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. An air return vent for an air purification device, comprising a frame (1), a filter (2) provided on the frame (1), and an electrode portion (3) for supplying power to the device on one side of the frame (1), characterized in that, Also includes: An ionization module that charges particulate matter such as dust and microorganisms in the air includes an ionization frame (4) set inside a frame (1), and a discharge rod (5) is also provided inside the frame (1), with the discharge rod (5) located below the ionization frame (4). The dust collection module is used to collect particulate matter such as dust and microorganisms in the air. It includes a positive electrode plate (6) and a negative electrode plate (7) set inside the frame (1). The positive electrode plate (6) and the negative electrode plate (7) are connected by a concave-convex structure to form a parallel electrode plate array. The contact (14) module is used to connect to the power supply to power the device, including the contact (14) disposed inside the electrode part (3), and the lower end of the contact (14) is provided with an elastic contact piece (15).

2. The air return vent of an air purification device according to claim 1, characterized in that: The frame (1) is provided with a first outer frame (9), which is divided into an F-shaped part (10) and an L-shaped part (11). The F-shaped part (10) has an interlayer that engages with the ionization frame (4), and the L-shaped part (11) engages with the discharge rod (5). Both the F-shaped part (10) and the L-shaped part (11) are PVC insulating layers.

3. The air return vent of an air purification device according to claim 2, characterized in that: The frame (1) is provided with a second outer frame (12), which is symmetrically arranged to engage the positive electrode plate (6) and the negative electrode plate (7).

4. The air return vent of an air purification device according to claim 2, characterized in that: The discharge rod (5) is provided with multiple discharge electrodes, and the elastic contact (15) is connected to the discharge electrodes through a wire.

5. The air return vent of an air purification device according to claim 3, characterized in that: The positive electrode plate (6) and the negative electrode plate (7) are integrally injection molded from carbon nanotube engineering plastic composite material, and their surfaces form a dense carbon nanotube protrusion structure (8).

6. The air return vent of an air purification device according to claim 4, characterized in that: The electrode part (3) is provided with a baffle (13) inside. The baffle (13) is provided with a spacer (16). The spacer (16) is used to fix the distance between the baffle (13) and the inner wall of the electrode part (3). The contact (14) is fixedly installed on the baffle (13). A circular through hole is opened on the baffle (13) at the position corresponding to the contact (14) to provide a moving position for the elastic contact piece (15).

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