Disinfection and sterilization device

Abstract

The present invention provides a disinfection and sterilization device for disinfecting and sterilizing the purification components of an air purifier. The purification components include a filter screen and a dust collecting plate; the disinfection and sterilization device includes: a housing having an installation opening; a power supply disposed within the housing; a first electrode disposed at the installation opening, the first electrode being electrically connected to the positive electrode of the power supply; a second electrode electrically connected to the negative electrode of the power supply, a discharge space being formed between the second electrode and the first electrode; a dielectric plate; wherein the disinfection and sterilization device has a first use state for disinfecting and sterilizing the filter screen and a second use state for disinfecting and sterilizing the dust collecting plate. When the disinfection and sterilization device is in the first use state, the discharge space is used to insert the filter screen; when the disinfection and sterilization device is in the second use state, the second electrode is the dust collecting plate, and the dielectric plate is inserted into the discharge space. The present invention solves the problem in the prior art that bacteria and viruses accumulate on the filter screen and the dust collecting plate of the air purifier, affecting the purification efficiency of the air purifier.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and more particularly, to a disinfection and sterilization device. Background Art

[0002] At present, when an air purifier purifies air using the principle of electrostatic purification or the principle of physical adsorption by a filter, although it can adsorb and remove bacteria and viruses in the air, the bacteria and viruses in the air will accumulate on the filter and the dust collection plate.

[0003] However, during the subsequent long-term use of the air purifier by the user, since there are bacteria and viruses on the filter and the dust collection plate themselves, the purification efficiency of the air purifier is reduced, and there is a risk that the discharged air is reinfected with bacteria and viruses. Summary of the Invention

[0004] The main object of the present invention is to provide a disinfection and sterilization device to solve the problem that the purification efficiency of the air purifier is affected by the accumulation of bacteria and viruses on the filter and the dust collection plate in the prior art.

[0005] To achieve the above object, the present invention provides a disinfection and sterilization device for disinfecting and sterilizing the purification components of an air purifier, the purification components including a filter and a dust collection plate; the disinfection and sterilization device includes: a housing having an installation opening; a power supply disposed inside the housing; a first electrode disposed at the installation opening, the first electrode being electrically connected to the positive electrode of the power supply; a second electrode electrically connected to the negative electrode of the power supply, a discharge space being formed between the second electrode and the first electrode; a dielectric plate; wherein, the disinfection and sterilization device has a first use state for disinfecting and sterilizing the filter and a second use state for disinfecting and sterilizing the dust collection plate. When the disinfection and sterilization device is in the first use state, the discharge space is used to insert the filter; when the disinfection and sterilization device is in the second use state, the second electrode is the dust collection plate, and the dielectric plate is inserted into the discharge space.

[0006] Further, the dielectric plate is made of an electret.

[0007] Further, the first electrode includes a connecting plate and a plurality of sub-electrodes disposed on the connecting plate, each sub-electrode being electrically connected to the positive electrode through the connecting plate, and each sub-electrode facing the discharge space; wherein, the plurality of sub-electrodes are spaced apart along the length direction and / or the width direction of the connecting plate.

[0008] Further, each sub-electrode is columnar or needle-shaped to extend into the mesh holes of the filter.

[0009] Further, the disinfection and sterilization device further includes: a grounding metal clip for clamping the second electrode, the second electrode being electrically connected to the negative electrode through the grounding metal clip.

[0010] Further, the housing includes: a housing body, an installation opening is provided on the housing body; a handle, which is provided on the housing body.

[0011] Further, the handle is made of an insulating material; or, an insulating layer is coated on the handle.

[0012] Further, the first electrode includes a connection plate and an electrode plate provided on the connection plate, and the electrode plate is electrically connected to the positive electrode through the connection plate.

[0013] Further, the disinfection and sterilization device further includes: a driving device, which is used for drivingly connecting with the filter screen to drive the filter screen to reciprocate along a first preset direction and / or a second preset direction; wherein, the first preset direction is consistent with the length direction of the filter screen, and the second preset direction is consistent with the width direction of the filter screen.

[0014] Further, the disinfection and sterilization device further includes: a cover body, which has a first accommodation part, a second accommodation part and a third accommodation part, the housing is arranged in the first accommodation part, the second electrode is arranged in the second accommodation part, and the third accommodation part is used for accommodating the filter screen or the dielectric plate; wherein, the cover body further has a wire accommodation part, and the wire accommodation part is used for accommodating the wire connecting the second electrode and the negative electrode.

[0015] Further, the disinfection and sterilization device further includes: a switch, which is electrically connected to the power supply to control the on / off state of the power supply.

[0016] Applying the technical solution of the present invention, the disinfection and sterilization device can be used to disinfect and sterilize the filter screen and the dust collection plate of an air purifier. When the disinfection and sterilization device is in the first use state, the filter screen is inserted into the discharge space. When the disinfection and sterilization device is in the second use state, the second electrode is the dust collection plate, and the dielectric plate is inserted into the discharge space. In this way, when it is necessary to disinfect and sterilize the filter screen, the filter screen is inserted into the discharge space, and the power supply is connected to enable the first electrode and the second electrode to discharge and generate plasma. The plasma acts on the bacteria adhering to the surface of the filter screen to break the cell membrane of the bacteria, thereby disinfecting and sterilizing the filter screen. When it is necessary to disinfect and sterilize the dust collection plate, the dust collection plate is connected to the circuit as the second electrode, the dielectric plate is inserted into the discharge space, and the power supply is connected to enable the first electrode and the dust collection plate to discharge and generate plasma. The plasma acts on the bacteria adhering to the dust collection plate to break the cell membrane of the bacteria, thereby disinfecting and sterilizing the dust collection plate. Therefore, the disinfection and sterilization device in this application can disinfect and sterilize the filter screen and the dust collection plate, thereby solving the problem that the filter screen and the dust collection plate of the air purifier accumulate bacteria and viruses, which affects the purification efficiency of the air purifier. Description of the Drawings

[0017] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 Shows a three-dimensional structural schematic diagram of the first embodiment of the disinfection and sterilization device according to the present invention;

[0019] Figure 2 Shows Figure 1 The three-dimensional structural schematic diagram of the disinfection and sterilization device in the first usage state; and

[0020] Figure 3 Shows a three-dimensional structural schematic diagram of the second embodiment of the disinfection and sterilization device according to the present invention in the second usage state.

[0021] Among them, the above-mentioned drawings include the following reference numerals:

[0022] 10, filter screen; 20, dust collection plate; 30, housing; 31, housing body; 32, handle; 40, power supply; 50, first electrode; 51, connecting plate; 52, sub-electrode; 53, electrode plate; 60, second electrode; 70, discharge space; 80, dielectric plate; 90, metal clip; 100, switch; 110, wire. Detailed implementation manners

[0023] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0024] It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0025] In the present invention, unless otherwise stated, the orientation terms such as "upper, lower" are usually in the direction shown in the drawings, or in the vertical, perpendicular or gravitational direction; similarly, for the convenience of understanding and description, "left, right" are usually in the left and right shown in the drawings; "inside, outside" refer to the inside and outside relative to the contour of each component itself, but the above orientation terms do not limit the present invention.

[0026] In order to solve the problem that bacteria and viruses accumulate on the filter screen and dust collection plate of the air purifier in the prior art, which affects the purification efficiency of the air purifier, this application provides a disinfection and sterilization device.

[0027] Embodiment 1

[0028] As Figure 1 And Figure 2As shown in the figure, the disinfection and sterilization device is used to disinfect and sterilize the purification components of the air purifier. The purification components include a filter screen 10 and a dust collection plate 20. The disinfection and sterilization device includes a housing 30, a power supply 40, a first electrode 50, a second electrode 60, a discharge space 70, and a dielectric plate 80. The housing 30 has an installation opening. The power supply 40 is arranged inside the housing 30. The first electrode 50 is arranged at the installation opening, and the first electrode 50 is electrically connected to the positive electrode of the power supply 40. The second electrode 60 is electrically connected to the negative electrode of the power supply 40, and a discharge space 70 is formed between the second electrode 60 and the first electrode 50. Among them, the disinfection and sterilization device has a first use state for disinfecting and sterilizing the filter screen 10 and a second use state for disinfecting and sterilizing the dust collection plate 20. When the disinfection and sterilization device is in the first use state, the discharge space 70 is used to insert the filter screen 10; when the disinfection and sterilization device is in the second use state, the second electrode 60 is the dust collection plate 20, and the dielectric plate 80 is inserted into the discharge space 70.

[0029] Applying the technical solution of this embodiment, the disinfection and sterilization device can be used to disinfect and sterilize the filter screen 10 and the dust collection plate 20 of the air purifier. When the disinfection and sterilization device is in the first use state, the filter screen 10 is inserted into the discharge space 70. When the disinfection and sterilization device is in the second use state, the second electrode 60 is the dust collection plate, and the dielectric plate 80 is inserted into the discharge space 70. In this way, when it is necessary to disinfect and sterilize the filter screen 10, the filter screen 10 is inserted into the discharge space 70, and the power supply 40 is connected to enable the first electrode 50 and the second electrode 60 to discharge and generate plasma. The plasma acts on the bacteria adhering to the surface of the filter screen 10, causing the cell membrane of the bacteria to break, and then disinfecting and sterilizing the filter screen 10. When it is necessary to disinfect and sterilize the dust collection plate 20, the dust collection plate 20 is connected to the circuit as the second electrode 60, the dielectric plate 80 is inserted into the discharge space 70, and the power supply 40 is connected to enable the first electrode 50 and the dust collection plate 20 to discharge and generate plasma. The plasma acts on the bacteria adhering to the dust collection plate 20, causing the cell membrane of the bacteria to break, and then disinfecting and sterilizing the dust collection plate 20. Therefore, the disinfection and sterilization device in this embodiment can disinfect and sterilize the filter screen 10 and the dust collection plate 20, thereby solving the problem that the collection of bacteria and viruses on the filter screen and the dust collection plate of the air purifier affects the purification efficiency of the air purifier.

[0030] In this embodiment, when the first electrode 50 and the second electrode 60 discharge, the voltage in the discharge space 70 changes transiently, causing the potential difference across the cell membrane of the bacteria to increase, resulting in a sharp increase in the permeability of the cell membrane and the appearance of more small holes. The cell membrane is irreversibly damaged and ruptured, and finally dies, thereby being able to disinfect and sterilize the filter screen 10 and the dust collection plate 20.

[0031] In this embodiment, the second electrode 60 is grounded.

[0032] AsFigure 1 As shown, the dielectric plate 80 is made of an electret. In this way, the dielectric plate 80 serves as the dielectric in the dielectric barrier discharge process to ensure that the dielectric barrier discharge phenomenon can occur inside the disinfection and sterilization device. At the same time, the dielectric plate 80 can store charges to generate a persistent and stable electrostatic field on its surface, thereby adsorbing fine dust, bacteria, and viruses adhering to the dust collection plate 20, further improving the disinfection and sterilization efficiency of the disinfection and sterilization device.

[0033] Optionally, the material of the electret is PTFE (polytetrafluoroethylene), or paraffin, or hydrocarbon, or solid acid, or PET (polyethylene terephthalate).

[0034] As Figure 1 and Figure 2 As shown, the first electrode 50 includes a connecting plate 51 and a plurality of sub-electrodes 52 arranged on the connecting plate 51. Each sub-electrode 52 is electrically connected to the positive electrode through the connecting plate 51, and each sub-electrode 52 faces the discharge space 70. Among them, the plurality of sub-electrodes 52 are arranged at intervals along the length direction and / or the width direction of the connecting plate 51. In this way, the above arrangement ensures that each sub-electrode 52 can discharge, so that the plasma size in the discharge space 70 is small, in order to disinfect and kill bacteria and viruses located in the mesh holes of the filter screen 10, thereby improving the disinfection and sterilization efficiency of the disinfection and sterilization device. At the same time, the above arrangement makes the arrangement method of the sub-electrodes 52 more flexible to meet different usage requirements and working conditions.

[0035] In this embodiment, the plurality of sub-electrodes 52 are arranged at intervals along the length direction and the width direction of the connecting plate 51, so that the structure of the plurality of sub-electrodes 52 is simpler, easier to process and implement, and thus reduces the processing cost of the sub-electrodes 52.

[0036] Optionally, each sub-electrode 52 is columnar, needle-shaped or reticular to extend into the mesh holes of the filter screen 10. In this way, different-shaped sub-electrodes 52 can be adapted to filters of different sizes, specifications, and mesh numbers to make the plasma density reach the optimal value, thereby disinfecting and sterilizing filters with different physical parameters and also making the disinfection and sterilization effect of the disinfection and sterilization device the best. Among them, the columnar sub-electrode 52 is used to disinfect a relatively flat filter screen, and the reticular sub-electrode 52 is used to disinfect a filter screen that requires a higher discharge intensity.

[0037] In this embodiment, each sub-electrode 52 is needle-shaped. If the surface of the filter screen 10 has wrinkles and mesh holes, the needle-shaped sub-electrodes 52 can be inserted into the wrinkles and mesh holes for disinfection and sterilization, thereby improving the disinfection and sterilization effect of the disinfection and sterilization device on the filter screen.

[0038] As Figure 1 and Figure 2As shown, the disinfection and sterilization device further includes a grounding metal clip 90. The grounding metal clip 90 is used to clamp the second electrode 60, and the second electrode 60 is electrically connected to the negative electrode through the grounding metal clip 90. In this way, the above setting of the grounding metal clip 90 grounds the second electrode 60, so as to form a discharge space 70 between the first electrode 50 and the second electrode 60, thereby inactivating the bacteria adhering to the filter screen 10 and the dust collecting plate 20.

[0039] As Figure 1 and Figure 2 shown, the housing 30 includes a housing body 31 and a handle 32. The installation port is provided on the housing body 31. The handle 32 is provided on the housing body 31. In this way, the handle 32 is installed on the housing body 31, and the user can operate the disinfection and sterilization device through the handle 32, so that the disinfection and sterilization device has a handheld feature, making it easier and more convenient for the user to operate the disinfection and sterilization device.

[0040] In this embodiment, there is one handle 32. It should be noted that the number of handles 32 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, there are two, three, or more handles 32.

[0041] Optionally, the handle 32 is made of an insulating material, or an insulating layer is coated on the handle 32. In this way, the handle 32 has the characteristic of insulation, and even if there is a leakage phenomenon on the disinfection and sterilization device, it can prevent the user from getting an electric shock accident to ensure the safety of the user.

[0042] In this embodiment, an insulating layer is coated on the handle 32.

[0043] Optionally, the insulating coating layer is a PVC layer, or a polyethylene layer, or a paint layer.

[0044] Optionally, the insulating material is resin, or rubber, or ceramic, or wood material.

[0045] Optionally, the disinfection and sterilization device further includes a driving device. The driving device is used to be drivingly connected to the filter screen 10 to drive the filter screen 10 to reciprocate along a first preset direction and / or a second preset direction. Wherein, the first preset direction is consistent with the length direction of the filter screen 10, and the second preset direction is consistent with the width direction of the filter screen 10. In this way, the filter screen 10 can be driven by the driving device to move, and then the disinfection position of the filter screen 10 can be adjusted to ensure that the entire filter screen 10 can be disinfected.

[0046] Specifically, when the position of the filter screen 10 needs to be adjusted, a clamping structure is used to clamp the filter screen, and the driving device drives the clamping structure to drive the filter screen 10 to move, so as to realize the reciprocating movement of the filter screen 10 along the first preset direction and / or the second preset direction.

[0047] Optionally, the driving device is a driving cylinder, making the driving device more reliable and cost-effective.

[0048] It should be noted that the type of the driving device is not limited to this and can be adjusted according to the working conditions and usage requirements. Optionally, the driving device is a linear motor or a lead screw nut structure.

[0049] Optionally, the disinfection and sterilization device further includes a cover body. The cover body has a first accommodating portion, a second accommodating portion, and a third accommodating portion. The housing 30 is disposed in the first accommodating portion, the second electrode 60 is disposed in the second accommodating portion, and the third accommodating portion is used to accommodate the filter screen 10 or the dielectric plate 80. Wherein, the cover body further has a wire accommodating portion for accommodating the wire 110 connecting the second electrode 60 and the negative electrode. In this way, the cover body covers the housing 30, the second electrode 60, and the filter screen 10 or the dielectric plate 80 to protect the above structures, thereby extending the service life of the disinfection and sterilization device and making the appearance of the disinfection and sterilization device more tidy and beautiful.

[0050] As Figure 1 and Figure 2 shown, the disinfection and sterilization device further includes a switch 100. Wherein, the switch 100 is electrically connected to the power supply 40 to control the on / off state of the power supply 40. In this way, the user can control the on / off state of the power supply through the switch 100, which not only makes it easier for the user to control the power supply and improves the user experience, but also can prevent the user from directly contacting the power supply and suffering from an electric shock accident, thus enhancing the safety of using the disinfection and sterilization device.

[0051] Embodiment 2

[0052] The difference between the disinfection and sterilization device in Embodiment 2 and that in Embodiment 1 lies in the different structure of the first electrode 50.

[0053] As Figure 3 shown, the first electrode 50 includes a connecting plate 51 and an electrode plate 53 disposed on the connecting plate 51. The electrode plate 53 is electrically connected to the positive electrode through the connecting plate 51. In this way, the above arrangement ensures that the electrode plate 53 can discharge, making the plasma distribution in the discharge space 70 more uniform and consistent, so as to disinfect the bacteria and viruses in the pores of the filter screen 10, thereby improving the disinfection and sterilization efficiency of the disinfection and sterilization device. At the same time, since the electrode plate 53 is relatively flat, the occurrence of discharge leakage points is avoided, thus improving the purification effect of the disinfection and sterilization device.

[0054] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0055] The disinfection and sterilization device can be used to disinfect and sterilize the filter screen and dust collection plate of an air purifier. When the disinfection and sterilization device is in the first use state, the filter screen is inserted into the discharge space. When the disinfection and sterilization device is in the second use state, the second electrode is the dust collection plate, and the dielectric plate is inserted into the discharge space. In this way, when it is necessary to disinfect and sterilize the filter screen, the filter screen is inserted into the discharge space, and the power supply is connected to enable the first electrode and the second electrode to discharge and generate plasma. The plasma acts on the bacteria adhering to the surface of the filter screen to break the cell membrane of the bacteria, thereby disinfecting and sterilizing the filter screen. When it is necessary to disinfect and sterilize the dust collection plate, the dust collection plate is connected to the circuit as the second electrode, the dielectric plate is inserted into the discharge space, and the power supply is connected to enable the first electrode and the dust collection plate to discharge and generate plasma. The plasma acts on the bacteria adhering to the dust collection plate to break the cell membrane of the bacteria, thereby disinfecting and sterilizing the dust collection plate. Therefore, the disinfection and sterilization device in the present application can disinfect and sterilize the filter screen and the dust collection plate, thereby solving the problem that the purification efficiency of the air purifier is affected by the accumulation of bacteria and viruses on the filter screen and the dust collection plate of the air purifier.

[0056] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0057] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0058] It should be noted that the terms "first", "second", etc. in the description, claims and drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0059] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A disinfection and sterilization device for disinfecting and sterilizing a purification component of an air purifier, the purification component including a filter screen (10) and a dust collection plate (20); characterized in that, The disinfection and sterilization device includes: A housing (30) having an installation opening; A power supply (40) disposed within the housing (30); A first electrode (50) disposed at the installation opening, and the first electrode (50) is electrically connected to the positive electrode of the power supply (40); A second electrode (60) electrically connected to the negative electrode of the power supply (40), and a discharge space (70) is formed between the second electrode (60) and the first electrode (50); A dielectric plate (80); Wherein, the disinfection and sterilization device has a first use state for disinfecting and sterilizing the filter screen (10) and a second use state for disinfecting and sterilizing the dust collecting plate (20). When the disinfection and sterilization device is in the first use state, the discharge space (70) is used to insert the filter screen (10); when the disinfection and sterilization device is in the second use state, the second electrode (60) is the dust collecting plate (20), and the dielectric plate (80) is inserted into the discharge space (70); The first electrode (50) includes a connecting plate (51) and a plurality of sub - electrodes (52) disposed on the connecting plate (51). Each sub - electrode (52) is electrically connected to the positive electrode through the connecting plate (51), and each sub - electrode (52) faces the discharge space (70); Each sub - electrode (52) is columnar or needle - shaped to extend into the mesh holes of the filter screen (10).

2. The disinfection and sterilization device according to claim 1, characterized in that The dielectric plate (80) is made of electret.

3. The disinfection and sterilization device according to claim 1, wherein The plurality of sub - electrodes (52) are spaced along the length direction and / or the width direction of the connecting plate (51).

4. The disinfection and sterilization device according to claim 1, characterized in that, The disinfection and sterilization device further includes: A grounding metal clip (90) for clamping the second electrode (60), and the second electrode (60) is electrically connected to the negative electrode through the grounding metal clip (90).

5. The disinfection and sterilization device according to claim 1, wherein, The housing (30) includes: A housing body (31) on which the installation opening is provided; A handle (32) disposed on the housing body (31).

6. The disinfection and sterilization device according to claim 5, wherein, The handle (32) is made of insulating material; Or, an insulating layer is coated on the handle (32).

7. The disinfection and sterilization device according to claim 1, characterized in that, The first electrode (50) includes a connecting plate (51) and an electrode plate (53) disposed on the connecting plate (51), and the electrode plate (53) is electrically connected to the positive electrode through the connecting plate (51).

8. The disinfection and sterilization device according to claim 1, characterized in that, The disinfection and sterilization device further includes: A driving device for drivingly connecting with the filter screen (10) to drive the filter screen (10) to reciprocate along a first preset direction and / or a second preset direction; wherein, the first preset direction is consistent with the length direction of the filter screen (10), and the second preset direction is consistent with the width direction of the filter screen (10).

9. The disinfection and sterilization device according to claim 1, wherein, The disinfection and sterilization device further includes: A cover body having a first accommodating portion, a second accommodating portion and a third accommodating portion. The housing (30) is disposed in the first accommodating portion, the second electrode (60) is disposed in the second accommodating portion, and the third accommodating portion is used to accommodate the filter screen (10) or the dielectric plate (80); Wherein, the cover body further has a wire accommodating portion for accommodating a wire (110) connecting the second electrode (60) and the negative electrode.

10. The disinfection and sterilization device according to claim 1, characterized in that, The disinfection and sterilization device further includes: a switch (100) electrically connected to the power supply (40) for controlling the on / off state of the power supply (40).

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