Air purification device

Abstract

The utility model relates to the field of air filtration, in particular to an air purification device which comprises a cylindrical filter element with one end open and the other end closed, a filter element cover covers the opening of the filter element, an air outlet is formed in a cover body of the filter element cover, a cover skirt is arranged in the cover, and an axial flow fan is mounted in the cover skirt; an elastic sealing ring is arranged between the filter element opening and the filter element cover, and the sealing ring is provided with a through groove or a through hole or a notch used for embedding a power line of the axial flow fan. The air purifier can solve the problems that an existing air purifier is complex in structure and high in cost, one-way flowing of air can be guaranteed, and air backflow caused by air leakage is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of air filtration, and particularly relates to an air purification device. BACKGROUND

[0002] The existing air purifier technology has been widely applied to various indoor environments such as homes and offices, and provides an effective solution for improving indoor air quality. Such air purifiers are mainly composed of filter cartridges, fans, and other supporting structures (such as housings, control panels, and electric control systems). The filter cartridge, as the core component of the air purifier, is responsible for filtering dust, particulate matter, harmful gases, and microorganisms in the air, and ensuring the cleanliness of the output air. The fan is responsible for sucking indoor air into the purifier, filtering it through the filter cartridge, and then blowing clean air back into the room to form an air circulation.

[0003] However, the existing air purifiers have some contradictions and problems: 1. Due to the use of a relatively complex structure, the unit price of the air purifier is relatively high; 2. The air in each room of a home or office does not circulate, and in order to achieve purification, the air purifier needs to be arranged at multiple points, resulting in a high total price; 3. The filter cartridge, as a consumable, its filtering effect will gradually decrease with the increase of use time, and even may cause secondary pollution, regular replacement of the filter cartridge is the key to maintaining the performance of the air purifier. However, the existing air purifier does not intuitively indicate when to replace the filter cartridge, and the filter cartridge usage needs to be checked by disassembling the air purifier. 4. The wiring of the simple air purifier is directly punched on the filter cartridge cover or passes through the grid, and the wiring is perpendicular to the filter cartridge cover, which is not simple and beautiful in appearance.

[0004] Therefore, the existing air purifier has the problems of complex structure, high unit price, multiple point arrangement, high total price, non-intuitive filter cartridge replacement, and not simple and beautiful wiring. In small space applications that require air purification, there are many limitations and challenges, therefore, developing an air purifier suitable for small spaces such as homes and offices has great market potential. SUMMARY

[0005] The utility model intends to provide a simple air purification device with low cost, easy filter cartridge replacement, and simple and beautiful wiring.

[0006] To achieve the above object, the utility model discloses the following technical scheme: an air purification device, including the open one end, the other end closed filter core, the open of filter core is connected with the filter core cover in parts, the cover of this filter core cover is equipped with the air outlet, and the cover is equipped with the cover skirt, and the coaxial installation of cover skirt has the fan, the filter core opening and filter core cover between be equipped with the sealing ring, and the sealing ring outer ring side wall exposes between filter core opening and filter core cover, and the notch of the sealing ring is opened for the power cord of fan, and the through slot or through -hole is passed, the power cord of fan is completely embedded through slot and is led out from the sealing ring outer ring side wall, or the power cord of fan passes through the through -hole / notch and is led out from the sealing ring outer ring side wall.

[0007] The beneficial effects of the present scheme are as follows: the combination of the filter core and the filter core cover can form a simple and convenient air purification device, which is very suitable for multiple-point arrangement in a family (especially a bedroom), a writing room and the like, and the production cost is lower than that of a traditional purifier; in addition, after the axial flow fan is started, negative pressure is generated to suck the air outside the filter core into the filter core, thereby performing filtration, dust is adhered to the gaps on the surface of the filter core, clean air is discharged from the air outlet, the installation direction of the axial flow fan can be changed, air is sucked from the air outlet, and then the air is discharged from outside the filter core, the filter core cover and the filter core are separate, the filter core can be replaced by removing the filter core cover, replacement is very convenient; finally, in order to ensure the negative pressure in the filter core and the tightness of the structure, a sealing ring is arranged at the opening of the filter core, the sealing ring has a through slot, a through hole or a notch for facilitating the routing of the power cord, the power cord will not generate a gap when being completely embedded in the through slot or passing through the through hole / notch, the routing avoids the generation of a gap between the filter core and the filter core cover, the unidirectional flow of air in the filter core to the air outlet can be ensured, air leakage is avoided, the routing of the power cord of the fan from the sealing ring outer ring side wall is simple and beautiful. The utility model can solve the problems of the existing air purifier, such as complex structure, high unit price, high total price for multiple-point arrangement, non-intuitive replacement of the filter core and non-simple and beautiful routing of the simple air purifier. The utility model can ensure the unidirectional flow of air and avoid air backflow caused by air leakage, and is especially suitable for air purification and filtration in a family and a small office space.

[0008] Further, the sealing ring is a single-ring structure, and the longitudinal section thereof is in the shape of a rectangle, an arc, a circle, a trapezoid, a triangle, a sawtooth, a step or a combination of the above shapes; or the sealing ring is a one-piece double-ring structure, and the longitudinal section thereof is in the shape of an L, a rectangle, an arc, a circle, a trapezoid, a triangle, a sawtooth, a step or a combination of the above shapes. The corresponding sealing ring is selected according to the space shape between the filter core cover and the filter core opening, so as to ensure the sealing effect.

[0009] Further, the through slot is in the shape of an arc, a trapezoid or a rectangle, which facilitates the embedding of the power cord of the fan.

[0010] Further, the air outlet of the filter core cover is provided with a grid plate, which can effectively prevent large sundries from entering the device and ensure smooth airflow.

[0011] Further, the sealing ring is attached to the filter core opening or the filter core cover. Fixing the sealing ring on the filter core or the filter core cover can prevent the displacement of the sealing ring.

[0012] Further, the filter core opening is provided with a protrusion or a recess, and the sealing ring is provided with a matching recess or protrusion, which can facilitate the positioning of the sealing ring during installation and prevent displacement during use.

[0013] Further, the sealing ring is made of rubber, sponge, foam, plastic, or silica gel, which has good elasticity and low cost.

[0014] Further, the side wall of the cover skirt is provided with a sound insulation layer, which can reduce the noise of the fan.

[0015] Further, the filter core and the cover skirt are both cylindrical, and the sealing ring is an O-ring, which has a large air suction area and an attractive and smooth appearance. Alternatively, the filter core and the cover skirt are both square cylinders, and the sealing ring is a square ring. This purification device is suitable for corner positions and does not occupy space.

[0016] Further, the inner side wall of the filter core is provided with an activated carbon layer, nano mineral crystal, active manganese, or bamboo charcoal layer, or a mixed layer of these substances, which is used for further filtering air. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic diagram of an air purification device according to Embodiment 1.

[0018] Figure 2 FIG. 2 is a structural schematic diagram of an air purification device according to Embodiment 2. Figure 1 FIG. 3 is a schematic diagram of a sealing ring according to Embodiment 1.

[0019] Figure 3 FIG. 4 is a schematic diagram of a sealing ring according to Embodiment 2.

[0020] Figure 4 FIG. 5 is a schematic diagram of a sealing ring according to Embodiment 3.

[0021] Figure 5 FIG. 6 is a cross-sectional schematic diagram of a sealing ring according to Embodiment 4.

[0022] Figure 6 FIG. 7 is a structural schematic diagram of an air purification device according to Embodiment 5. DETAILED DESCRIPTION

[0023] Further illustrated in detail by specific embodiments, the reference signs are: filter core 1, filter core cover 2, air outlet 2-1, cover skirt 3, sound insulation layer 3-1, axial flow fan 4, sealing ring 5, through slot 5-1, power cord 6, notch 7, through hole 8, protrusion 9, activated carbon layer 10.

[0024] Embodiment 1

[0025] As shown in Figure 1 , Figure 2 , an air purification device mainly comprises a cylindrical filter core 1 with one open end and the other closed end, and a filter core cover 2 matched with the filter core 1. The filter core cover 2 and the filter core 1 are separate components, and the filter core cover 2 can be installed at the opening of the filter core 1 by direct placement, buckling or clamping.

[0026] The side wall of the filter core 1 is composed of folded Hepa filter paper and honeycomb activated carbon mesh (or folded Hepa filter paper and activated carbon sponge; or single Hepa filter paper), which can effectively block small particulate matters in the air, such as dust, pollen, smoke, and part of viruses and bacteria, and adsorb formaldehyde, odor and TVOC, thereby ensuring significant improvement of air quality. The cover body of the filter core cover 2 is provided with an air outlet 2-1, and a grid plate is arranged at the air outlet 2-1, which can effectively prevent large debris from entering the inside of the device and ensure smooth airflow. The cover of the filter core cover 2 is integrally formed with a cylindrical cover skirt 3, the outer side of the cover skirt 3 is bonded or clamped with a sound insulation layer 3-1, and an axial flow fan 4 is installed inside the cover skirt 3. The axial flow fan 4 is coaxial with the air outlet 2-1, which enhances the sound insulation effect of the device and reduces the noise generated when the axial flow fan operates.

[0027] In order to ensure the sealing between the filter core 1 and the filter core cover 2, an annular sealing ring 5 made of rubber is arranged between the opening of the filter core 1 and the filter core cover 2. The sealing ring 3 is bonded at the opening of the filter core 1, and the outer ring side wall of the sealing ring 3 is exposed between the opening of the filter core 1 and the filter core cover 2, and the exposed height is greater than the diameter of the power cord 6 of the axial flow fan 4. A through slot 5-1 for routing the power cord 6 is formed on the sealing ring 5, and the cross section of the slot is preferably rectangular. The power cord 6 is completely embedded in the through slot 5-1 and led out from the outer ring side wall of the sealing ring 5.

[0028] When the filter core cover 2 is buckled at the opening of the filter core 1, the cover skirt 3 extends into the filter core 1, and the power cord 6 is embedded in the through slot 5-1 and extends out of the filter core 1 to connect the power supply.

[0029] When the axial flow fan 4 starts, it can suck the air outside the filter core 1 into the space inside the cylinder of the filter core 1, filter the polluted air outside, blow out the filtered air from the air outlet 2-1, and adsorb and accumulate the filtered dust and other impurities in the folded gap on the surface of the filter core 1.

[0030] The through groove in this embodiment 1 facilitates the routing of the power cord. Since the sealing ring 5 is elastic and the surface of the power cord 6 is also rubber, both are elastic. This way, no gaps will be created when the power cord is embedded in the through groove. This routing avoids gaps between the filter element and the filter element cover, thus ensuring unidirectional airflow.

[0031] Example 2

[0032] like Figure 3 As shown, the difference from Embodiment 1 is that the sealing ring 5 is a non-closed O-ring, and the sealing ring 5 has a notch 7 for the power line 6 to pass through. The width of the notch is the same as the diameter of the power line 6, and the power line 6 is completely embedded in the notch 7 and led out from the outer side wall of the sealing ring 5.

[0033] Example 3

[0034] like Figure 4 As shown, the difference from Embodiment 1 is that the sealing ring 5 is a closed O-ring, and the sealing ring 5 has a through hole 8 for the power line 6 to pass through. The diameter of the through hole is the same as the diameter of the power line 6, and the power line 6 passes completely through the through hole 8 and is led out from the outer side wall of the sealing ring 5.

[0035] Example 4

[0036] like Figure 5 As shown, the difference from Embodiment 1 is that the sealing ring 5 is an integrally formed double-ring structure. Its longitudinal section is L-shaped, and the surface of the sealing ring 5 has a through groove 5-1 for the power line 6 to run through. The groove 5-1 has a trapezoidal cross-section, and the power line 6 is completely embedded in the through groove 5-1 and led out from the outer side wall of the sealing ring 5.

[0037] Example 5

[0038] like Figure 6 As shown, the difference from Embodiment 1 is that the sealing ring 5 has an L-shaped cross-section, with one end extending into the interior of the filter element 1 and tightly fitting against the cover skirt 3. The surface of the filter element 1 opening has a protrusion 9 with a triangular cross-section. The side of the sealing ring 5 that fits against the filter element 1 has a groove, which is a triangle matching the shape of the protrusion 9. An activated carbon layer 10 (or a mixture of nano-mineral crystals, activated manganese, bamboo charcoal, etc.) is attached to the inner wall of the filter element 1. This activated carbon layer 10 is an activated carbon sponge layer or honeycomb activated carbon.

[0039] The above only is the embodiment of the present application, and the well-known specific technical solutions and / or common knowledge in the scheme are not described in detail. It should be pointed out that, for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. An air cleaning device comprising a cylindrical filter cartridge open at one end and closed at the other end, characterised in that: The filter core is connected with a filter core cover at the opening, the cover body of the filter core cover is provided with an air outlet, the cover is provided with a cover skirt, and a fan is coaxially installed in the cover skirt; a sealing ring is arranged between the filter core opening and the filter core cover, the outer wall of the sealing ring is exposed between the filter core opening and the filter core cover, and the sealing ring is provided with a notch, a through groove or a through hole for the power line of the fan; the power line of the fan is completely embedded in the through groove and led out from the outer wall of the sealing ring, or the power line of the fan is led out from the outer wall of the sealing ring through the through hole / notch.

2. An air purification device according to claim 1, characterized in that: The sealing ring is a single-ring structure, and the longitudinal section thereof is in the shape of a rectangle, an arc, a circle, a trapezoid, a triangle, a sawtooth, a step or a combination of the above shapes; or the sealing ring is a two-ring structure formed integrally, and the longitudinal section thereof is in the shape of an L, a rectangle, an arc, a circle, a trapezoid, a triangle, a sawtooth, a step or a combination of the above shapes.

3. An air purification device according to claim 2, wherein: The through groove is in the shape of an arc, a trapezoid or a rectangle.

4. An air purification device according to claim 3, wherein: The filter core cover is provided with a grid plate at the air outlet, and the filter core cover is buckled or clamped with the filter core.

5. An air purification device according to claim 4, wherein: The sealing ring is bonded with the filter core opening; or the sealing ring is bonded with the filter core cover.

6. An air purification device according to claim 5, wherein: The filter core opening is provided with a protrusion or a recess, and the sealing ring is provided with a recess or a protrusion matched with the protrusion or the recess.

7. An air purification device according to claim 6, wherein: The sealing ring is a rubber sealing ring, a sponge sealing ring, a foam sealing ring, a plastic sealing ring or a silica gel sealing ring.

8. An air purification device according to claim 7, wherein: The sidewall of the cover skirt is provided with a sound insulation layer.

9. An air purification device according to claim 8, wherein: The filter core and the cover skirt are in the shape of a cylinder, and the sealing ring is an O-shaped ring; or the filter core and the cover skirt are in the shape of a square cylinder, and the sealing ring is a square ring.

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