Filter

Abstract

The utility model relates to the technical field of air purification, and discloses a filter which comprises a frame body, the filtering assembly comprises a first pressurizing layer, a filtering layer and a second pressurizing layer which are sequentially arranged in the frame body at intervals; the first pressurizing layer and the second pressurizing layer are suitable for being electrically connected with a power supply respectively and suitable for applying different voltages through the power supply to form an electric field; the breathable insulating layer is arranged at one end of the frame body, and the second pressurizing layer is arranged between the breathable insulating layer and the filtering layer. The problems that when an existing air filtering device is cleaned and maintained in a manual mode, the existing air filtering device is likely to make direct contact with a metal net, and potential safety hazards exist are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification, in particular to a filter. Background Art

[0002] Large supermarkets and buildings mostly use central air conditioning, which is usually equipped with return air vents to ensure the circulation of indoor air. After the central air conditioner discharges the indoor air through the air supply vents, it needs to recycle the indoor air again, and re-inhale the air into the air conditioning system through the return air vents. After condensation, filtration and other treatments, it is sent back into the room. This can greatly improve the utilization rate of air, reduce energy waste, and achieve better indoor air quality and comfort. The state has set standards for the professional cleaning of centralized air conditioning and ventilation systems in public places. Among them, the cleaning cycle for the air conduction equipment (including return air vents and air ducts) of the air handling system is at least once a year to ensure the air intake quality of the central air conditioner.

[0003] In the related art, an air filter device is usually arranged at the return air outlet to filter the air. The air filter device includes a shell, and an upstream metal mesh and a downstream metal mesh are arranged inside the shell. An electric field is formed by applying voltage to the upstream metal mesh and the downstream metal mesh respectively to achieve filtration. However, when manual cleaning and maintenance are performed, it is easy to come into direct contact with the metal mesh, which poses a safety hazard. Utility Model Content

[0004] In view of this, the utility model provides a filter to solve the problem that the existing air filter device is easy to directly contact with the metal mesh when it is cleaned and maintained manually, which poses a safety hazard.

[0005] The utility model provides a filter, comprising:

[0006] Frame;

[0007] The filter assembly comprises a first pressurizing layer, a filter layer and a second pressurizing layer which are sequentially arranged in the frame at intervals; the first pressurizing layer and the second pressurizing layer are respectively adapted to be electrically connected to a power source and to apply different voltages through the power source to form an electric field;

[0008] The air-permeable insulating layer is arranged at one end of the frame body, and the second pressurizing layer is arranged between the air-permeable insulating layer and the filter layer.

[0009] Beneficial effects: The air can be filtered through the filter assembly in the frame, and different voltages are applied to the first pressurized layer and the second pressurized layer through a power supply to form an electric field between the first pressurized layer and the second pressurized layer, so as to charge and adsorb the passing particles and bacteria, and cooperate with the filter layer to achieve a purification effect. There is no conduction between the first pressurized layer and the second pressurized layer, and only a high-voltage electric field is formed. Therefore, only microamperes are required to achieve adsorption, and low energy consumption is achieved. In addition, a breathable insulating layer is provided to isolate the second pressurized layer. While ensuring air circulation, direct contact with the second pressurized layer during manual cleaning can be avoided, thereby avoiding the risk of electric shock and improving safety.

[0010] In an optional implementation, the breathable insulating layer is in a mesh or woven shape.

[0011] Beneficial effect: Through the mesh or woven arrangement, air can flow through the mesh holes on the breathable insulation layer.

[0012] In an optional embodiment, the pore size of the breathable insulating layer is 0.4 cm-0.6 cm.

[0013] Beneficial effect: The aperture of the breathable insulating layer is set to 0.4cm-0.6cm, and the aperture is increased to reduce wind resistance so that air can circulate smoothly while preventing people's fingers from entering the mesh.

[0014] In an optional embodiment, the breathable insulating layer is made of plastic, cloth, rubber or cotton.

[0015] Beneficial effects: Plastic, cloth, rubber or cotton is used as the material of the breathable insulating layer, which has an insulating effect to play an insulating role and improve safety.

[0016] In an optional embodiment, the breathable insulating layer and the second pressurizing layer are arranged in parallel, and the distance between the two is 0.3 cm-5 cm.

[0017] Beneficial effect: By setting a preset distance between the breathable insulating layer and the second pressurized layer, arc breakdown caused by the high voltage electric field when voltage is applied to the second pressurized layer is prevented, thereby further improving safety. Preferably, the distance between the two is 0.3cm-5cm.

[0018] In an optional embodiment, the first pressurizing layer and the second pressurizing layer are both detachably connected to the frame.

[0019] Beneficial effect: The detachable connection facilitates installation and removal of the first pressurized layer and the second pressurized layer for cleaning and maintenance.

[0020] In an optional embodiment, the inner wall of the frame is provided with a first card slot and a second card slot respectively corresponding to the first pressurized layer and the second pressurized layer, the first card slot and the second card slot are both arranged along the circumference of the frame, the first pressurized layer is engaged with the first card slot, and the second pressurized layer is engaged with the second card slot.

[0021] Beneficial effects: The first card slot and the second card slot are respectively connected to the first pressurized layer and the second pressurized layer, which is convenient for installation and disassembly for cleaning and maintenance, and has high stability.

[0022] In an optional embodiment, the first pressurizing layer and the second pressurizing layer are both conductive meshes.

[0023] Beneficial effect: The first pressurizing layer and the second pressurizing layer adopt a conductive mesh, which is convenient for air circulation and for applying voltage to form an electric field.

[0024] In an optional implementation, the conductive mesh is made of iron, stainless steel, copper, copper alloy, aluminum or aluminum alloy.

[0025] Beneficial effects: The conductive mesh is made of iron, stainless steel, copper, copper alloy, aluminum or aluminum alloy, and has good conductivity, corrosion resistance, high strength, easy processing, and low cost.

[0026] In an optional embodiment, the second pressurizing layer and the filtering layer are arranged in parallel, and the distance between the two is 0.3-5 cm.

[0027] Beneficial effect: The second pressurized layer is parallel to the filter layer and spaced apart, ensuring that the generated electric field can fully absorb particulate matter and bacteria, thereby improving the purification effect.

[0028] In an optional embodiment, the first pressurizing layer and the second pressurizing layer are both in a grid shape or a mesh shape.

[0029] Beneficial effect: Through the grid-like or mesh-like arrangement, air can flow through the openings of the first pressurization layer and the second pressurization layer.

[0030] In an optional implementation, the filter layer is fixed to the inner wall of the frame by glue injection.

[0031] Beneficial effect: The stability and moisture-proof performance of the connection between the filter layer and the frame are improved by fixing with glue.

[0032] In an optional embodiment, the filter layer is made of filter cotton.

[0033] Beneficial effects: The filter layer is made of filter cotton, which has good air permeability and can adsorb particulate matter.

[0034] In an optional embodiment, the first pressurizing layer and the filter layer are arranged in parallel.

[0035] Beneficial effects: The second pressurizing layer is arranged in parallel with the filtering layer to ensure the uniformity of the generated electric field and improve the purification effect.

[0036] In an optional embodiment, the filter layer is in a pleated configuration, and the first pressurizing layer and the second pressurizing layer are both in a pleated configuration that matches the filter layer.

[0037] Beneficial effect: The filter layer is arranged in pleats to increase the adsorption area and improve the purification effect. At the same time, the first pressurized layer and the second pressurized layer are adapted to the pleat arrangement of the filter layer to maintain consistency and improve the purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 A front view of a filter provided by the utility model;

[0040] Figure 2 for Figure 1 Middle AA section view;

[0041] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0042] Figure 4 The utility model is a top view of a filter provided by the utility model.

[0043] Description of reference numerals:

[0044] 1. Frame; 2. First pressurized layer; 3. Filter layer; 4. Second pressurized layer; 5. Breathable insulating layer; 6. First card slot; 7. Second card slot. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0046] Combine the following Figures 1 to 4 , describing an embodiment of the utility model.

[0047] According to the embodiments of the present utility model, Figure 1 , Figure 2 and Figure 4 As shown, a filter comprises: a frame 1; a filter assembly, comprising a first pressurized layer 2, a filter layer 3 and a second pressurized layer 4 which are sequentially arranged in the frame 1; the first pressurized layer 2 and the second pressurized layer 4 are suitable for being electrically connected to a power source respectively, and suitable for applying different voltages through the power source to form an electric field; a breathable insulating layer 5 is arranged at one end of the frame 1, and the second pressurized layer 4 is arranged between the breathable insulating layer 5 and the filter layer 3.

[0048] In this embodiment, the air can be filtered by the filter assembly in the frame 1, and different voltages are applied to the first pressurized layer 2 and the second pressurized layer 4 through a power supply to form an electric field between the first pressurized layer 2 and the second pressurized layer 4, so as to charge and adsorb the passing particles and bacteria, and cooperate with the filter layer 3 to achieve a purification effect. There is no conduction between the first pressurized layer 2 and the second pressurized layer 4, and only a high-voltage electric field is formed. Therefore, only microamperes are needed to achieve adsorption, thereby achieving low energy consumption. In addition, a breathable insulating layer 5 is provided to isolate the second pressurized layer 4. While ensuring air circulation, direct contact with the second pressurized layer 4 during manual cleaning can be avoided, thereby avoiding the risk of electric shock and improving safety.

[0049] In one embodiment, the first pressurized layer 2 is suitable for connecting to the ground electrode of the power supply, and the second pressurized layer 4 is suitable for connecting to the positive electrode of the power supply. By applying a high voltage to the second pressurized layer 4, the voltage range is preferably 1kV to 30kV, so as to form an electric field between the first pressurized layer 2 and the second pressurized layer 4, so as to charge and adsorb the passing particles and bacteria, and cooperate with the filter layer 3 to achieve a purification effect. There is no conduction between the first pressurized layer 2 and the second pressurized layer 4, and only a high-voltage electric field is formed. Therefore, only microamperes are needed to achieve adsorption, and low energy consumption is achieved. Since the first pressurized layer is grounded and the energized second pressurized layer 4 is arranged between the first pressurized layer 2 and the breathable insulating layer, direct contact with the second pressurized layer 4 can be avoided during manual cleaning, thereby avoiding the risk of electric shock and further improving safety.

[0050] In one embodiment, Figure 1 As shown, the breathable insulating layer 5 is in a mesh or woven shape.

[0051] In this embodiment, the mesh or woven arrangement allows air to flow through the mesh holes on the breathable insulating layer 5 .

[0052] In one embodiment, the pore size of the air-permeable insulating layer 5 is 4 cm-0.6 cm.

[0053] In this embodiment, the pore size of the breathable insulating layer 5 is set to 0.4 cm-0.6 cm, preferably to 0.5 cm, so as to increase the pore size to reduce wind resistance and allow smooth air circulation while preventing people's fingers from entering the mesh.

[0054] Specifically, since people's fingers are of different sizes, in one embodiment, the aperture of the breathable insulating layer 5 is set to 0.4 cm to prevent smaller fingers from falling into the holes of the breathable insulating layer 5; in another embodiment, the aperture of the breathable insulating layer 5 is set to 0.6 cm to prevent larger fingers from falling into the holes of the breathable insulating layer 5. Preferably, the aperture of the breathable insulating layer 5 is set to 0.5 cm, which can adaptively prevent most people's fingers from falling into the holes of the breathable insulating layer 5.

[0055] In one embodiment, the breathable insulating layer 5 is made of plastic, cloth, rubber or cotton.

[0056] In this embodiment, plastic, cloth, rubber or cotton is used as the material of the breathable insulating layer 5. By using an insulating material, the breathable insulating layer 5 plays an insulating role and improves safety. In this embodiment, the material of the breathable insulating layer 5 is preferably cotton.

[0057] In one embodiment, Figure 2 As shown, the air-permeable insulating layer 5 and the second pressurizing layer 4 are arranged in parallel, and the distance between the two is 0.3 cm-5 cm.

[0058] In this embodiment, a preset distance is set between the breathable insulating layer 5 and the second pressurized layer 4 to prevent arc breakdown caused by the high voltage electric field when voltage is applied to the second pressurized layer 4, thereby further improving safety. Preferably, the distance between the two is 0.3cm-5cm.

[0059] Specifically, in one embodiment, when the voltage applied to the second pressurization layer 4 is low, the distance of arc breakdown is small, and it is preferred to set the distance between the air permeable insulating layer 5 and the second pressurization layer 4 to 0.3 cm, which can not only avoid arc breakdown, but also reduce the spacing to save space; in another embodiment, when the voltage applied to the second pressurization layer 4 is high, the distance of arc breakdown is large, and it is preferred to set the distance between the air permeable insulating layer 5 and the second pressurization layer 4 to 5 cm to ensure that the air permeable insulating layer 5 is not broken down by the arc.

[0060] In one embodiment, the first pressurizing layer 2 and the second pressurizing layer 4 are both detachably connected to the frame 1 .

[0061] In this embodiment, the detachable connection facilitates the installation and removal of the first pressurizing layer 2 and the second pressurizing layer 4 for cleaning and maintenance.

[0062] In one embodiment, Figure 3As shown, the inner wall of the frame 1 is respectively provided with a first card slot 6 and a second card slot 7 corresponding to the first pressurized layer 2 and the second pressurized layer 4. The first card slot 6 and the second card slot 7 are both arranged along the circumference of the frame 1. The first pressurized layer 2 is engaged with the first card slot 6, and the second pressurized layer 4 is engaged with the second card slot 7.

[0063] In this embodiment, the first card slot 6 and the second card slot 7 are respectively connected with the first pressurized layer 2 and the second pressurized layer 4, so that installation and disassembly are convenient for cleaning and maintenance, and the stability is relatively high.

[0064] Specifically, a first opening and a second opening are provided on one side of the outer wall of the frame body 1 corresponding to the first card slot 6 and the second card slot 7 respectively, wherein the first opening is connected to the first card slot 6, and the second opening is connected to the second card slot 7, so as to facilitate the installation of the first pressurization layer 2 into the first card slot 6 through the first opening, and the installation of the second pressurization layer 4 into the second card slot 7 through the second opening.

[0065] In one embodiment, the first pressurizing layer 2 and the second pressurizing layer 4 are both conductive meshes.

[0066] In this embodiment, the first pressurizing layer 2 and the second pressurizing layer 4 are made of conductive mesh, which is convenient for air circulation and for applying voltage to form an electric field.

[0067] In one embodiment, the conductive mesh is made of iron.

[0068] In this embodiment, the conductive mesh is made of iron, which has good conductivity, corrosion resistance, high strength, and easy processing, and has low cost, and is easy to apply voltage to form an electric field.

[0069] As a convertible implementation, the conductive mesh may be made of conductive materials such as stainless steel, copper, copper alloy, aluminum, aluminum alloy or conductive plastic. Its excellent conductivity makes it easy to form an electric field to adsorb particulate matter and bacteria after power is turned on.

[0070] In one embodiment, Figure 2 and Figure 3 As shown, the second pressurizing layer 4 is arranged in parallel with the filtering layer 3, and the distance between the two is 0.3 cm-5 cm.

[0071] In this embodiment, the second pressurizing layer 4 is parallel to the filter layer 3 and spaced apart to ensure that the generated electric field can fully adsorb particulate matter and bacteria, thereby improving the purification effect.

[0072] In one embodiment, the first pressurizing layer 2 and the second pressurizing layer 4 are both in a grid or mesh shape.

[0073] In this embodiment, air can flow through the openings of the first pressurizing layer 2 and the second pressurizing layer 4 through a grid-like or mesh-like arrangement.

[0074] In one embodiment, the filter layer 3 is fixed to the inner wall of the frame 1 by glue injection.

[0075] In this embodiment, the filter layer 3 and the frame 1 are fixed by glue filling to improve the stability and moisture-proof performance of the connection.

[0076] It should be noted that the filter layer 3 is made of an air-permeable material, which facilitates air circulation during filtering.

[0077] In one embodiment, the filter layer 3 is made of filter cotton.

[0078] In this embodiment, the filter layer 3 is made of filter cotton, which has good air permeability and can adsorb particulate matter.

[0079] As a convertible embodiment, the material of the filter layer 3 can be selected as a glass substrate, a polymer substrate or a ceramic substrate, etc. The glass substrate can be selected as glass fiber, the polymer substrate can be selected as PET, PVDF or PTFE, etc., and the ceramic substrate can be selected as alumina ceramic, silica ceramic or strontium titanate ceramic, etc., all of which have good filtering properties and can be selected according to actual conditions.

[0080] In one embodiment, Figure 2 and Figure 3 As shown, the first pressurizing layer 2 and the filtering layer 3 are arranged in parallel.

[0081] In this embodiment, the second pressurizing layer 4 is arranged in parallel with the filtering layer 3 to ensure the uniformity of the generated electric field and improve the purification effect.

[0082] In one embodiment, the filter layer 3 is in a pleated configuration, and the first pressurizing layer 2 and the second pressurizing layer 4 are both in a pleated configuration adapted to the filter layer 3 .

[0083] In this embodiment, the filter layer 3 is arranged in a pleated manner to increase the adsorption area and improve the purification effect. At the same time, the first pressurized layer 2 and the second pressurized layer 4 are adapted to the pleated arrangement of the filter layer 3 to maintain consistency and improve the purification effect.

[0084] Specifically, Figure 2 and Figure 3 As shown, the filter layer 3 is arranged in W-shaped pleats.

[0085] The installation and working principle of the filter provided in this embodiment are as follows: first, the first pressurized layer 2 and the second pressurized layer 4 are respectively installed in the first card slot 6 and the second card slot 7 of the frame 1, and the filter layer 3 is fixed by glue injection. A breathable insulating layer 5 is provided on the side of the second pressurized layer 4 away from the first pressurized layer 2. The first pressurized layer 2 and the second pressurized layer 4 use a conductive mesh. The breathable insulating layer 5 and the filter layer 3 have certain air permeability. When filtering, the first pressurized layer 2 is grounded, and the second pressurized layer 4 is applied with high voltage, and the voltage range is preferably 1kV to 30kV to form a high voltage electric field. The air passes through the breathable insulating layer in turn. 5. The second pressurized layer 4, the filter layer 3 and the first pressurized layer 2. The filter layer 3 and the high-voltage electric field between the second pressurized layer 4 and the first pressurized layer 2 are used to charge and adsorb the particles and bacteria passing through, so as to achieve the purification effect. There is no conduction between the first pressurized layer 2 and the second pressurized layer 4, and only a high-voltage electric field is formed. Therefore, only micro-ampere current is required to achieve the adsorption effect, so as to achieve low energy consumption. In addition, the second pressurized layer 4 is isolated by setting a breathable insulating layer 5, and the breathable insulating layer 5 is arranged in a mesh or woven shape. Under the condition of ensuring air circulation, direct contact with the second pressurized layer 4 is avoided during manual cleaning, and the risk of electric shock is avoided, thereby improving safety. The problem that the existing air filter device is easy to come into direct contact with the metal mesh when it is cleaned and maintained manually, which poses a safety hazard, is solved.

[0086] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A filter, characterized in that: include: Frame (1); The filter assembly comprises a first pressurizing layer (2), a filter layer (3) and a second pressurizing layer (4) which are sequentially arranged in a spaced relationship within the frame (1); the first pressurizing layer (2) and the second pressurizing layer (4) are respectively adapted to be electrically connected to a power source and to form an electric field by applying different voltages through the power source; The air-permeable insulating layer (5) is arranged at one end of the frame (1), and the second pressurizing layer (4) is arranged between the air-permeable insulating layer (5) and the filter layer (3).

2. The filter according to claim 1, characterized in that The air-permeable insulating layer (5) is in a mesh or woven shape.

3. The filter according to claim 2, characterized in that The pore diameter of the air-permeable insulating layer (5) is 0.4 cm-0.6 cm.

4. The filter according to claim 1, characterized in that The material of the breathable insulating layer (5) is plastic, cloth, rubber or cotton.

5. The filter according to claim 1, characterized in that The air-permeable insulating layer (5) and the second pressurizing layer (4) are arranged in parallel, and the distance between the two is 0.3 cm-5 cm.

6. The filter according to claim 1, characterized in that The first pressurizing layer (2) and the second pressurizing layer (4) are both detachably connected to the frame (1).

7. The filter according to claim 6, characterized in that The inner wall of the frame body (1) is provided with a first card slot (6) and a second card slot (7) respectively corresponding to the first pressurized layer (2) and the second pressurized layer (4); the first card slot (6) and the second card slot (7) are both arranged along the circumference of the frame body (1); the first pressurized layer (2) is engaged with the first card slot (6), and the second pressurized layer (4) is engaged with the second card slot (7).

8. The filter according to claim 1, characterized in that The first pressurizing layer (2) and the second pressurizing layer (4) are both conductive meshes.

9. The filter according to claim 8, characterized in that The conductive mesh is made of iron, stainless steel, copper, copper alloy, aluminum or aluminum alloy.

10. The filter according to any one of claims 1 to 9, characterized in that: The second pressure layer (4) is arranged in parallel with the filter layer (3), and the distance between the two is 0.3 cm-5 cm; And / or, the first pressurizing layer (2) and the second pressurizing layer (4) are both in a grid shape or a mesh shape; And / or, the filter layer (3) and the inner wall of the frame (1) are fixed by glue injection; And / or, the filter layer (3) is made of filter cotton; And / or, the first pressurizing layer (2) and the filtering layer (3) are arranged in parallel; And / or, the filter layer (3) is arranged in a pleated configuration, and the first pressurizing layer (2) and the second pressurizing layer (4) are arranged in a pleated configuration that matches the filter layer (3).

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