A sterilization device for a water purifier and a water purifier

Abstract

This utility model relates to the field of water purifier technology, specifically a sterilization device for a water purifier and a water purifier. The sterilization device for the water purifier includes: a sterilization component, comprising at least one ultraviolet lamp, a photocatalyst, and a first housing having an inlet and an outlet; the photocatalyst is disposed within the first housing, and at least one ultraviolet lamp is disposed on the first housing, with the photocatalyst positioned within the irradiation range of the at least one ultraviolet lamp; a filtration component, comprising a first filter and a second filter, the first filter being disposed at the inlet and the second filter at the outlet; both the first and second filters are provided with filter holes, the diameter of which is smaller than the size of the photocatalyst. This utility model provides a sterilization component and a filtration component that cooperate with each other at the outlet of the water purifier. The sterilization component uses at least one ultraviolet lamp and a photocatalyst for sterilization, which can significantly improve the sterilization effect compared to sterilization with a single ultraviolet lamp.

Description

Technical Field

[0001] This utility model relates to the field of water purifier technology, and in particular to a sterilization device for a water purifier and a water purifier. Background Technology

[0002] Traditional water dispensers typically use ultraviolet (UV) light sterilization technology to disinfect drinking water, killing bacteria, viruses, and other microorganisms. The principle of UV sterilization is to use specific wavelengths of ultraviolet light (such as 254 nm) to destroy the DNA or RNA structure of microorganisms, rendering them unable to reproduce, thus achieving a sterilization effect. However, in practical applications, the effectiveness of UV sterilization technology in water dispensers is often limited by various factors, resulting in less than ideal sterilization efficiency. These factors include: limited UV light penetration, insufficient water flow rate and irradiation time, UV lamp aging and intensity decay, photoreactivation of microorganisms, secondary contamination due to untimely filter replacement, and water purifier design that is difficult to clean or has poor water quality adaptability. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model sets up a sterilization component and a filtration component that cooperate with each other at the water outlet of the water purifier. The sterilization component uses at least one ultraviolet lamp and a photocatalytic element to sterilize, which can greatly improve the sterilization effect compared with sterilization by ultraviolet lamp alone.

[0004] This utility model provides a sterilization device for a water purifier, comprising:

[0005] A sterilization component includes at least one ultraviolet lamp, a photocatalyst, and a first housing having an inlet and an outlet; the photocatalyst is disposed inside the first housing, the at least one ultraviolet lamp is disposed on the first housing, and the photocatalyst is disposed within the irradiation range of the at least one ultraviolet lamp;

[0006] The filtration assembly includes a first filter element and a second filter element, wherein the first filter element is disposed at the water inlet and the second filter element is disposed at the water outlet; both the first filter element and the second filter element are provided with filter holes, the diameter of which is smaller than the size of the photocatalytic element.

[0007] Furthermore, the sterilization component also includes a second housing, which is sleeved on the first housing;

[0008] The second housing has a reflective surface, which is disposed on the inner wall of the second housing.

[0009] Furthermore, a fixing member is provided on the second housing, and the second housing is fixedly connected to the first housing through the fixing member;

[0010] There is a gap between the reflective surface and the first housing.

[0011] Furthermore, the length of the second housing is not less than the length of the first housing.

[0012] Furthermore, the sterilization component also includes a PCB board and a power supply that are electrically connected to each other;

[0013] The PCB board is disposed at the open end on one side of the first housing;

[0014] The at least one ultraviolet lamp is spaced apart on the PCB board, and the at least one ultraviolet lamp is electrically connected to the PCB board.

[0015] Furthermore, the cross-sectional shape of the PCB board is consistent with the cross-sectional shape of the first housing.

[0016] Furthermore, the PCB board also includes a temperature control circuit, which is electrically connected to the at least one ultraviolet lamp.

[0017] Furthermore, the water inlet is provided with a first mounting part for connecting to the water inlet pipe; the water inlet is capable of communicating with the water inlet pipe;

[0018] The water outlet is provided with a second mounting part for connecting to the water outlet pipe; the water outlet can communicate with the water outlet pipe.

[0019] Furthermore, the PCB board is disposed on the outlet side of the first housing.

[0020] This utility model also protects a water purifier, including an inlet pipe, an outlet pipe, and a sterilization device for the water purifier as described above;

[0021] The inlet pipe is connected to the inlet, and the outlet pipe is connected to the outlet.

[0022] Implementing the embodiments of this utility model has the following beneficial effects:

[0023] This invention features a sterilization component and a filtration component that work together at the water outlet of a water purifier. The sterilization component uses at least one ultraviolet lamp and a photocatalytic element for sterilization, which significantly improves the sterilization effect compared to sterilization with a single ultraviolet lamp. To prevent the photocatalyst inside the first housing from entering the drinking water and contaminating it, a first filter and a second filter are respectively installed at both ends of the first housing. The diameter of the filter holes on the first and second filters is smaller than the size of the photocatalytic element. This prevents the photocatalytic element inside the first housing from entering the drinking water and contaminating it, thus improving the user's water safety. Attached Figure Description

[0024] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this utility model. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0025] Figure 1 This is a structural diagram of the sterilization device for a water purifier described in this embodiment;

[0026] Figure 2 This is a structural diagram of the PCB board and the ultraviolet lamp connected in this embodiment.

[0027] The corresponding reference numerals in the figure are:

[0028] 1-Sterilization component; 2-Filter component; 3-Inlet pipe; 4-Outlet pipe; 11-UV lamp; 12-First housing; 13-Second housing; 14-PCB board. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the terms "upper," "lower," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., 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 where appropriate so that embodiments of the present invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0032] See appendix Figures 1-2 This embodiment provides a sterilization device for a water purifier, comprising: a sterilization component 1, including at least one ultraviolet lamp 11, a photocatalyst, and a first housing 12 having an inlet and an outlet; the photocatalyst is disposed within the first housing 12, and at least one ultraviolet lamp 11 is disposed on the first housing 12, the photocatalyst being positioned within the irradiation range of the at least one ultraviolet lamp 11; and a filter component 2, including a first filter and a second filter, the first filter being disposed at the inlet and the second filter being disposed at the outlet; both the first and second filters are provided with filter holes, the diameter of which is smaller than the size of the photocatalyst. A sterilization component 1 and a filter component 2 are installed at the water outlet of the water purifier. The sterilization component 1 uses at least one ultraviolet lamp 11 and a photocatalytic element for sterilization, which can significantly improve the sterilization effect compared to sterilization by ultraviolet lamp alone. At the same time, in order to prevent the photocatalyst set in the first housing 12 from entering the drinking water and contaminating it, a first filter element and a second filter element are respectively set at both ends of the first housing 12. The diameter of the filter holes on the first filter element and the second filter element is smaller than the size of the photocatalytic element. This can prevent the photocatalytic element in the first housing 12 from entering the drinking water and contaminating it, thereby improving the user's water safety.

[0033] It is understandable that the photocatalyst is a solid structure that can decompose bactericidal substances under the irradiation of the ultraviolet lamp 11, and it is necessary to avoid the photocatalyst being in powder or liquid form and entering the drinking water to contaminate the drinking water. The photocatalyst is a solid structure, and its specific material and structure are not limited here, as long as it can decompose bactericidal substances under the irradiation of the ultraviolet lamp 11.

[0034] Preferably, the photocatalyst is a cotton-like structure formed of titanium dioxide. Under deep ultraviolet light, titanium dioxide generates electron-hole pairs, which in turn generate reactive oxygen species, such as hydroxyl radicals and superoxide radicals. These reactive oxygen species have strong oxidizing properties and can damage the bacterial cell membrane and intracellular organic matter, leading to bacterial death and decomposition.

[0035] In this embodiment, the wavelength generated by the ultraviolet lamp 11 is between 65-280nm.

[0036] In this embodiment, at least one ultraviolet lamp 11 is disposed on the same side of the first housing 12 or at least one ultraviolet lamp 11 is disposed on opposite sides of the first housing 12, which can increase the light intensity of the ultraviolet lamp 11 and improve the sterilization effect.

[0037] In this embodiment, the first filter element completely covers the water inlet, and the second filter element completely covers the water outlet. That is, the inside of the first housing 12 is connected to the water inlet pipe 3 through the filter holes on the first filter element, and the inside of the first housing 12 is connected to the water outlet pipe 4 through the filter holes on the second filter element.

[0038] In this embodiment, the number of ultraviolet lamps 11 is not limited, but is limited according to actual needs. Preferably, four ultraviolet lamps 11 are arranged at intervals on one side of the PCB board.

[0039] In some possible embodiments, the sterilization component 1 further includes a second housing 13, which is fitted onto the first housing 12. The second housing 13 has a reflective surface, which is disposed on the inner wall of the second housing 13. By fitting the second housing 13 onto the first housing 12 and disposing of the reflective surface on the inner wall of the second housing 13, a reflector can be added outside the sterilization area, further confining the ultraviolet light generated by the ultraviolet lamp 11 within the sterilization area. This also reduces ultraviolet light loss, increases the light intensity of ultraviolet light on the photocatalyst and on the drinking water, further improving the sterilization effect. At the same time, it also makes the sterilization device more compact and reliable, easier for users to install, and improves the user experience.

[0040] In this embodiment, the second housing 13 is made of glass, and the inner wall of the second housing 13 is covered with a metal material film to form the aforementioned reflective surface.

[0041] In some possible embodiments, a fixing member is provided on the second housing 13, and the second housing 13 is fixedly connected to the first housing 12 through the fixing member; there is a gap between the reflective surface and the first housing 12. By providing a gap between the reflective surface and the first housing 12, it is possible to avoid the ultraviolet light generated by the ultraviolet lamp 11 not being able to be collected in the second housing 13 due to the lack of a gap between the two, thus ensuring the focusing effect of the ultraviolet light generated by the ultraviolet lamp 11 in the second housing 13, thereby ensuring the sterilization effect.

[0042] In this embodiment, the gap between the reflective surface and the first housing 12 is not limited, as long as the reflective surface can receive the ultraviolet light generated by the ultraviolet lamp 11.

[0043] In this embodiment, the first housing 12 is provided with a snap-fit ​​structure or snap-fit ​​groove for fastening.

[0044] Preferably, when a snap-fit ​​groove is provided on the first housing 12, a snap-fit ​​part is provided at the end of the fastener connected to the first housing 12. The snap-fit ​​groove is an L-shaped groove, which includes a first groove and a second groove. The length direction of the first groove is parallel to the axial direction of the first housing 12, and the second groove is arranged along the circumference of the first housing 12. The snap-fit ​​part of the fastener passes through the first groove and the second groove in sequence, and the snap-fit ​​part of the fastener snaps into the second groove. Specifically, the installation process of the second housing 13 is as follows: along the axial direction of the first housing 12, the second housing 13 is fitted onto the first housing 12, and the snap-fit ​​part is set in the first groove. The second housing 13 is driven to continue moving along the axial direction of the first housing 12 until it moves to the second groove. The second housing 13 is rotated relative to the first housing 12 to snap-fit ​​and fix the snap-fit ​​part into the second groove.

[0045] In some possible embodiments, the length of the second housing 13 is not less than the length of the first housing 12. By setting the length of the second housing 13 to be not less than the length of the first housing 12, it can be ensured that the second housing 13 can reflect all the reflected ultraviolet light onto the photocatalytic element disposed in the first housing 12, thereby improving the sterilization effect.

[0046] In this embodiment, along the radial direction of the first housing 12, the projection of the second housing 13 completely covers the projection of the first housing 12.

[0047] In some possible embodiments, the sterilization component 1 further includes a PCB board 14 and a power supply that are electrically connected to each other; the PCB board 14 is disposed at an open end on one side of the first housing 12; at least one ultraviolet lamp 11 is disposed at intervals on the PCB board 14 and is electrically connected to the PCB board 14. By setting the PCB board 14 and setting at least one ultraviolet lamp 11 on the PCB board 14, the connection structure between the ultraviolet lamp 11 and the power supply can be simplified when multiple ultraviolet lamps 11 are set, thereby reducing the complexity of the sterilization component 1 and reducing the manufacturing cost.

[0048] In this embodiment, the number of PCB boards 14 included in the sterilization component 1 is one or two. When the number of PCB boards 14 included in the sterilization component 1 is two, the two PCB boards 14 are respectively disposed on opposite sides of the first housing 12. At this time, at least two ultraviolet lamps 11 are respectively disposed on the two PCB boards 14. By disposing of PCB boards 14 and ultraviolet lamps 11 on opposite sides of the first housing 12, the light intensity of the ultraviolet lamps 11 on the photocatalytic element can be greatly improved, and the light intensity on drinking water can also be improved. Compared with disposing of PCB boards 14 on one side, the sterilization and disinfection effect on drinking water can be greatly improved.

[0049] In some possible embodiments, the cross-sectional shape of the PCB board 14 is consistent with the cross-sectional shape of the first housing 12. By setting the cross-sectional shape of the PCB board 14 to be consistent with the cross-sectional shape of the first housing 12, the area of ​​the PCB board 14 can be guaranteed, thereby ensuring that at least one ultraviolet lamp 11 has sufficient installation space. At the same time, after the PCB board 14 and the first housing 12 are installed, there is no protruding structure, which can reduce the manufacturing cost and improve the overall aesthetics of the sterilization device.

[0050] In this embodiment, the PCB board 14 has a ring-shaped structure, and the wall thickness of the first housing 12 is equal to the width of the PCB board 14.

[0051] In this embodiment, the wall thickness of the first housing 12 is greater than or equal to the diameter of the ultraviolet lamp 11.

[0052] In this embodiment, the inner diameter of the second housing 13 is greater than the outer diameter of the first housing 12, the inner diameter of the first housing 12 is greater than or equal to the outer diameter of the water outlet pipe 4, the outer diameter of the first housing 12 is equal to the outer diameter of the PCB board 14, and the inner diameter of the first housing 12 is equal to the inner diameter of the PCB board 14.

[0053] In some possible embodiments, the PCB board 14 also includes a temperature control circuit, which is electrically connected to at least one ultraviolet lamp 11. By setting up the temperature control circuit and electrically connecting it to the ultraviolet lamp 11, the ultraviolet lamp 11 can be turned off in time when the temperature is too high, which can effectively protect the device and improve the safety of using the ultraviolet lamp 11.

[0054] In some possible embodiments, the inlet is provided with a first mounting part for connecting to the inlet pipe 3; the inlet can communicate with the inlet pipe 3; the outlet is provided with a second mounting part for connecting to the outlet pipe 4; the outlet can communicate with the outlet pipe 4. By providing the first mounting part and the second mounting part, the installation stability with the inlet pipe 3 and the outlet pipe 4 can be ensured, preventing detachment at the connection position and improving the installation stability of the sterilization device.

[0055] In this embodiment, the inlet pipe 3 is fixed to the first mounting part by snap-fit, threaded connection, or adhesive bonding, and the outlet pipe 4 is fixed to the second mounting part by snap-fit, threaded connection, or adhesive bonding.

[0056] Preferably, the first mounting part is provided with an internal thread, the water inlet pipe 3 is provided with an external thread that mates with it, and the water inlet pipe 3 is threadedly connected to the first mounting part; the second mounting part is provided with an internal thread, the water outlet pipe 4 is provided with an external thread that mates with it, and the water outlet pipe 4 is threadedly connected to the second mounting part.

[0057] In some possible embodiments, the PCB board 14 is disposed on the outlet side of the first housing 12. By disposing of the PCB board 14 on the outlet side of the first housing 12, drinking water can fully receive the ultraviolet light generated by the ultraviolet lamp 11 after entering the sterilization device, thereby improving the sterilization effect.

[0058] The sterilization process of the sterilization device used in the water purifier is as follows: at least one ultraviolet lamp 11 is turned on, and drinking water enters the first housing 12 through the inlet pipe 3. The photocatalyst in the first housing 12 generates sterilizing substances under the ultraviolet light generated by the ultraviolet lamp 11 to sterilize the drinking water in the first housing 12. At the same time, at least one ultraviolet lamp 11 sterilizes the drinking water in the first housing 12, thus achieving double sterilization of the drinking water in the first housing 12. The sterilized drinking water flows out through the outlet pipe 4.

[0059] This utility model also protects a water purifier, including an inlet pipe 3, an outlet pipe 4, and a sterilization device for the water purifier as described above; the inlet pipe 3 is connected to the water inlet, and the outlet pipe 4 is connected to the water outlet. In this embodiment, the water purifier is provided with a sterilization component 1 and a filter component 2 that cooperate with each other at the water outlet end. The sterilization component 1 uses at least one ultraviolet lamp 11 and a photocatalyst for sterilization, which can significantly improve the sterilization effect compared with sterilization by a single ultraviolet lamp; at the same time, in order to prevent the photocatalyst set in the first housing 12 from entering the drinking water and contaminating the drinking water, a first filter and a second filter are respectively set at both ends of the first housing 12, and the diameter of the filter holes on the first filter and the second filter is smaller than the size of the photocatalyst. This can prevent the photocatalyst in the first housing 12 from entering the drinking water and contaminating the drinking water, thereby improving the user's water safety.

[0060] It is understood that the implementations shown in the accompanying drawings are merely preferred examples of this application. In actual products, the above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

[0061] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0062] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A sterilization device for a water purifier, characterized in that, include: The sterilization component (1) includes at least one ultraviolet lamp (11), a photocatalyst, and a first housing (12) having an inlet and an outlet; the photocatalyst is disposed inside the first housing (12), the at least one ultraviolet lamp (11) is disposed on the first housing (12), and the photocatalyst is disposed within the irradiation range of the at least one ultraviolet lamp (11); The filter assembly (2) includes a first filter element and a second filter element. The first filter element is disposed at the water inlet, and the second filter element is disposed at the water outlet. Both the first filter element and the second filter element are provided with filter holes, and the diameter of the filter holes is smaller than the size of the photocatalytic element.

2. The sterilizing device for a water purifier according to claim 1, wherein The sterilization component (1) further includes a second housing (13), which is sleeved on the first housing (12); The second housing (13) has a reflective surface disposed on the inner wall of the second housing (13).

3. The sterilization device for a water purifier according to claim 2, characterized in that, The second housing (13) is provided with a fixing member, and the second housing (13) is fixedly connected to the first housing (12) through the fixing member; There is a gap between the reflective surface and the first housing (12).

4. The sterilization device for a water purifier according to claim 2, characterized in that, The length of the second housing (13) is not less than the length of the first housing (12).

5. The sterilization device for a water purifier according to claim 1, characterized in that, The sterilization component (1) also includes a PCB board (14) and a power supply that are electrically connected to each other; The PCB board (14) is disposed at the open end on one side of the first housing (12); The at least one ultraviolet lamp (11) is spaced apart on the PCB board (14), and the at least one ultraviolet lamp (11) is electrically connected to the PCB board (14).

6. The sterilization device for a water purifier according to claim 5, characterized in that, The cross-sectional shape of the PCB board (14) is consistent with the cross-sectional shape of the first housing (12).

7. The sterilization device for a water purifier according to claim 5, characterized in that, The PCB board (14) also includes a temperature control circuit, which is electrically connected to the at least one ultraviolet lamp (11).

8. The sterilization device for a water purifier according to any one of claims 1-7, characterized in that, The inlet is provided with a first mounting part for connecting to the inlet pipe (3); the inlet is capable of communicating with the inlet pipe (3); The outlet is provided with a second mounting part for connecting to the outlet pipe (4); the outlet can communicate with the outlet pipe (4).

9. The sterilization device for a water purifier according to any one of claims 1-7, characterized in that, The PCB board (14) is located on the outlet side of the first housing (12).

10. A water purifier, characterized in that, Includes an inlet pipe (3), an outlet pipe (4), and a sterilization device for a water purifier as described in any one of claims 1-9; The inlet pipe (3) is connected to the inlet, and the outlet pipe (4) is connected to the outlet.

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