Sterilization module and water purification device

Abstract

The utility model discloses a sterilization module and a water purification device, and relates to the technical field of water treatment.The sterilization module comprises a pipe body, the pipe body is internally provided with a flow channel, the pipe body comprises an inlet end and an outlet end, and the inlet end and the outlet end are both communicated with the flow channel; the water inlet component is arranged at the inlet end of the pipe body, a flow passing channel is formed in the water inlet component and communicated with the flow channel, and fluid flowing through the flow passing channel flows into the flow channel; the ultraviolet generation module is arranged adjacent to the water inlet component and is arranged on the downstream of the water inlet component, the ultraviolet generation module is arranged opposite to at least part of the flow channel, and ultraviolet light emitted by the ultraviolet generation module in a working state can at least irradiate at least part of the flow channel; and the cover body is used for covering the outer part of the ultraviolet generation module so as to isolate the ultraviolet generation module from the water flow flowing into the pipe body. According to the application, parts of the sterilization module can be simplified on the basis of meeting the requirement that inflow water can dissipate heat of the ultraviolet generation module, and the cost of the whole module is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a sterilization module and a water purification device. Background Art

[0002] The room-temperature purified water output from a water purifier may experience excessive bacterial growth. This is because after the raw water passes through the filtration unit, there's a long path between the filter outlet and the purifier's outlet. This path can lead to bacterial growth and potentially excessive levels of the purified water. Therefore, it's best to sterilize the purified water before it's output to ensure safety. Currently, the most effective and safe method is to install a sterilization module with ultraviolet (UV) sterilization technology. The conventional structural design of the sterilization module has the following characteristics: in order to ensure the water-cooling heat dissipation of the light-emitting parts that emit ultraviolet light and the time that the water flow is irradiated by ultraviolet light inside the module, the sterilization module will include a metal shell, a PTFE reflective cylinder arranged in the metal shell, and a light-emitting part installation sealing assembly. The inner wall of the PTFE reflective cylinder can reflect the ultraviolet light back and forth. A water inlet port is provided on the metal shell. Water is input from the water inlet port to the metal shell and dissipates the heat of the light-emitting part installation sealing assembly when flowing through the light-emitting part installation sealing assembly. The water then flows into the inside of the PTFE reflective cylinder to increase the time that the water flow is irradiated by ultraviolet light. After the water flows out of the PTFE reflective cylinder, it flows out from the water outlet port of the metal shell. In the above structure, since it is inconvenient to process the PTFE reflective cylinder into a water inlet port and a water outlet port that can be connected to other components, the entire sterilization module also requires a metal shell to accommodate the PTFE reflective cylinder. In order to prevent rust and corrosion, the metal shell is made of expensive stainless steel. This results in the entire sterilization module having too many parts and components and is not simplified enough. The existence of the high-cost metal shell leads to a high cost price of the entire sterilization module. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiment of the present invention is to provide a sterilization module and a water purification device, which can simplify the components of the sterilization module and reduce the cost of the entire module on the basis of ensuring that the incoming water can dissipate heat for the ultraviolet generating module.

[0004] The specific technical solution of the embodiment of the utility model is:

[0005] A sterilization module, comprising:

[0006] A tube body, wherein a flow channel is provided in the tube body, the tube body includes an inlet end and an outlet end, and the inlet end and the outlet end are both in communication with the flow channel;

[0007] a water inlet component provided at the inlet end of the pipe body, wherein the water inlet component has a flow passage therein, the flow passage being in communication with the flow channel so that the fluid flowing through the flow passage can flow into the flow channel;

[0008] an ultraviolet generating module disposed adjacent to the water inlet component, the ultraviolet generating module disposed downstream of the water inlet component, the ultraviolet generating module disposed opposite to at least a portion of the flow channel, and the ultraviolet light emitted by the ultraviolet generating module in an operating state can irradiate at least a portion of the flow channel;

[0009] A light-transmissive cover is provided on the outside of the ultraviolet generating module to isolate the ultraviolet generating module from the fluid flowing into the tube body.

[0010] Preferably, the water inlet component is sealed and adapted to the inlet end of the tube body or the inner wall or outer wall of the tube body near the inlet end, and the ultraviolet generating module is arranged inside the tube body.

[0011] Preferably, the water inlet component at least partially extends into the tube body, and a first sealing structure is provided between the water inlet component extending into the tube body and the interior of the tube body, and the first sealing structure is used to prevent water flowing into the tube body from the water inlet component from flowing out from the inlet end.

[0012] Preferably, the flow channel arranged in the water inlet component has an outlet, the outlet is directed toward the inner wall of the tube body and the outlet is located downstream of the first sealing structure; a gap is formed between the portion of the water inlet component extending into the tube body and the inner wall of the tube body, the gap connects the flow channel and the flow channel, and the fluid flowing out of the outlet flows into the gap and flows into the flow channel through the gap.

[0013] Preferably, the light-transmissive cover includes a top wall facing the ultraviolet generating module and side walls surrounding the ultraviolet generating module, and the top wall and the side walls are connected.

[0014] Preferably, the side wall extends into the gap, and a second sealing structure is provided between the inner surface of the side wall and the outer wall of the portion of the water inlet component extending into the tube body, and the second sealing structure is provided downstream of the outlet.

[0015] Preferably, a gap is formed between the side wall and the inner wall of the tube body to connect the outlet and the flow channel.

[0016] Preferably, the flow passage includes a first flow passage and a second flow passage that are interconnected, the first flow passage is arranged in a direction parallel to the extension direction of the tube body, and the second flow passage is arranged in a direction perpendicular to the extension direction of the tube body.

[0017] Preferably, the ultraviolet generating module includes a first surface arranged opposite to the water inlet component and a second surface arranged opposite to the flow channel, at least part of the cover body is arranged on one side of the second surface, and at least part of the first surface is arranged in contact with the water inlet component or realizes heat exchange with the water inlet component through a heat-conductive material.

[0018] Preferably, the sterilization module comprises: a flow disruptor provided in the tube body, the flow disruptor being used to disrupt the fluid flowing from the interval into the flow channel.

[0019] Preferably, the spoiler is provided at the end surface of the top wall facing the flow channel, a radially extending communication channel is formed between the spoiler and the top wall, and the gap is communicated with the flow channel through the communication channel.

[0020] Preferably, the spoiler includes a spoiler body and a plurality of protrusions extending toward the cover body, the plurality of protrusions are distributed along the circumferential direction, and there are gaps between adjacent protrusions, and the gaps form the connecting channel; the spoiler body has an opening, and the connecting channel is connected to the flow channel through the opening.

[0021] Preferably, the inner side wall of the tube body is provided with a limiting portion, and the limiting portion is used to limit the cover body to prevent the cover body from separating from the water inlet component in the direction of the flow channel;

[0022] The protrusion abuts against the cover, and the spoiler body abuts against the limiting portion.

[0023] Preferably, the sterilization module includes:

[0024] An outlet component is arranged at the outlet end of the tube body, and a water outlet channel is formed in the outlet component, and the water outlet channel is communicated with the flow channel.

[0025] Preferably, the sterilization module includes:

[0026] A flow equalizer having multiple openings, some of the openings are located in the edge area of ​​the flow equalizer, and some of the openings are located in the middle area of ​​the flow equalizer. The flow equalizer is arranged at the inlet of the water outlet channel or in the water outlet channel, and the flow channel is connected to the water outlet channel through the openings.

[0027] Preferably, the inner side wall of the tube body has a second step, and the second step abuts against the outlet component.

[0028] Preferably, the flow equalizing member is arranged at the second step and is supported by the outlet component.

[0029] Preferably, the inner side wall of the tube body is capable of reflecting the ultraviolet light.

[0030] Preferably, the tube body is made of PTFE material.

[0031] Preferably, the roughness of the inner wall of the tube body is less than or equal to 0.8 microns.

[0032] Preferably, the tube body is a straight tube.

[0033] Preferably, the water inlet component is made of metal material.

[0034] Preferably, the flow passage comprises a first flow passage and a second flow passage that are interconnected, the first flow passage is arranged in a direction parallel to the extension direction of the tube body, and the second flow passage is arranged in a direction perpendicular to the extension direction of the tube body;

[0035] An annular groove is provided on the outer side wall of the water inlet component, one end of the second flow channel extends to the bottom of the groove, and the second flow channel is communicated with the gap through the groove.

[0036] Preferably, there are multiple second flow passages, and the multiple second flow passages are distributed circumferentially.

[0037] Preferably, the groove is located between the first sealing structure and the second sealing structure.

[0038] Preferably, the diameter of the side wall of the water inlet component corresponding to the first sealing structure is greater than the diameter of the side wall of the water inlet component corresponding to the second sealing structure.

[0039] Preferably, the outlet component blocks the outlet end of the tube body, and the outlet component at least partially extends into the tube body; radial sealing is achieved between the outer wall of the outlet component and the inner wall of the tube body through a third sealing structure.

[0040] A water purification device, comprising:

[0041] Filter components;

[0042] As in any of the above-mentioned sterilization modules, the sterilization module is connected downstream of the purified water outlet of the filter assembly.

[0043] The technical solution of the utility model has the following significant beneficial effects:

[0044] When the sterilization module sterilizes the water flowing through it, the water flows in from the flow channel of the water inlet component. Since the ultraviolet generating module is arranged adjacent to the water inlet component, the water can dissipate heat to the water inlet component when flowing through the flow channel, thereby achieving heat dissipation of the ultraviolet generating module. Afterwards, the water after passing through the flow channel flows into the flow channel of the tube body. Since the cover isolates the ultraviolet generating module from the water flow flowing into the tube body, the water in the tube body cannot contact the ultraviolet generating module. When the water flows through the flow channel, it is irradiated by the ultraviolet light emitted by the ultraviolet generating module through the cover, thereby achieving the purpose of sterilization, and finally can flow out from the outlet end of the tube body. The sterilization module in the present application does not need to be covered with other shells outside the tube body that forms the flow channel, so that the incoming water can dissipate heat to the ultraviolet generating module. Moreover, since the sterilization module does not have a shell, the components of the sterilization module can be simplified, reducing the cost of the entire module.

[0045] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. Furthermore, the shapes and proportional dimensions of the components in the drawings are for illustrative purposes only and are intended to facilitate understanding of the present invention. They are not intended to limit the shapes and proportional dimensions of the components of the present invention. Those skilled in the art, guided by the present invention, may select various possible shapes and proportional dimensions to implement the present invention, depending on the specific circumstances.

[0047] Figure 1 This is a cross-sectional view of the sterilization module in an embodiment of the present utility model;

[0048] Figure 2 This is an exploded view of the sterilization module in the embodiment of the present utility model;

[0049] Figure 3 This is a structural diagram of the water inlet component in an embodiment of the present utility model;

[0050] Figure 4 This is a schematic structural diagram of the cover body in an embodiment of the present utility model;

[0051] Figure 5 This is a schematic structural diagram of a spoiler in an embodiment of the present utility model;

[0052] Figure 6This is a schematic structural diagram of the outlet assembly in an embodiment of the present utility model;

[0053] Figure 7 Schematic diagram of the structure of the flow equalizer in the embodiment of the present utility model.

[0054] Reference numerals in the above drawings:

[0055] 1. Tube body; 11. Flow channel; 12. Limiting part; 13. Second step; 2. Outlet component; 21. Water outlet channel; 22. Third sealing member; 23. Third recessed portion; 3. Water inlet component; 31. Flow channel; 311. First flow channel; 312. Second flow channel; 32. First recessed portion; 33. First part of water inlet component; 34. Second part of water inlet component; 35. Second recessed portion; 36. Groove; 37. First sealing member; 38. Second sealing member; 4. Cover body; 41. Top wall; 42. Side wall; 5. UV generating module; 6. Waterproof chamber; 7. Gap; 8. Interval; 9. Spoiler; 91. Spoiler body; 92. Raised portion; 93. Connecting channel; 94. Opening; 10. Flow equalizing component; 101. Opening DETAILED DESCRIPTION

[0056] The details of the present invention can be more clearly understood in conjunction with the accompanying drawings and the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are intended solely for the purpose of illustrating the present invention and should not be construed as limiting the present invention in any way. Based on the teachings of the present invention, skilled artisans can conceive of any possible variations based on the present invention, all of which should be considered within the scope of the present invention. It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there can be an intermediate element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be an intermediate element. The terms "mounted," "connected," and "connected" should be interpreted broadly, for example, to mean mechanical or electrical connections, internal communication between two elements, direct connection, or indirect connection through an intermediary. The specific meanings of these terms will be understood by those skilled in the art based on the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are intended only to describe specific embodiments and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0058] On the basis of ensuring that the incoming water can dissipate heat for the UV generating module, in order to simplify the components of the sterilization module and reduce the cost of the entire module, a sterilization module is proposed in this application. Figure 1 This is a cross-sectional view of the sterilization module in the embodiment of the present utility model. Figure 2 This is an exploded view of the sterilization module in the embodiment of the present utility model. Figure 1 and Figure 2 As shown, the sterilization module may include: a tube body 1, a flow channel 11 is arranged in the tube body 1, the tube body 1 includes an inlet end and an outlet end, and the inlet end and the outlet end are both connected to the flow channel 11; a water inlet component 3 is arranged at the inlet end of the tube body 1, and an overflow channel 31 is provided in the water inlet component 3, the overflow channel 31 is connected with the flow channel 11, and the fluid flowing through the flow channel 31 flows into the flow channel 11; an ultraviolet generating module 5 is arranged adjacent to the water inlet component 3, the ultraviolet generating module 5 is arranged downstream of the water inlet component 3, the ultraviolet generating module 5 is arranged opposite to at least part of the flow channel 11, and the ultraviolet light emitted by the ultraviolet generating module 5 in the working state can at least irradiate at least part of the flow channel 11; a light-transmissive cover body 4, the cover body 4 is used to cover the outside of the ultraviolet generating module 5 to isolate the ultraviolet generating module 5 from the water flow flowing into the tube body 1.

[0059] When the sterilization module sterilizes the water flowing through it, the water flows in from the flow channel 31 of the water inlet component 3. Since the ultraviolet generating module 5 is arranged adjacent to the water inlet component 3, the water can dissipate heat to the water inlet component 3 when flowing through the flow channel 31, thereby achieving heat dissipation of the ultraviolet generating module 5. Afterwards, the water after passing through the flow channel 31 flows into the flow channel 11 of the tube body 1. Since the cover body 4 isolates the ultraviolet generating module 5 from the water flow flowing into the tube body 1, the water in the tube body 1 cannot contact the ultraviolet generating module 5. When the water flows through the flow channel 11, it is irradiated by the ultraviolet light emitted by the ultraviolet generating module 5 through the cover body 4, thereby achieving the purpose of sterilization, and finally can flow out from the outlet end of the tube body 1. The sterilization module in the present application does not need to be covered with other shells outside the tube body 1 forming the flow channel 11, so that the incoming water can dissipate heat to the ultraviolet generating module 5. Moreover, since the sterilization module does not have a shell, the components of the sterilization module can be simplified, reducing the cost of the entire module.

[0060] In order to better understand the sterilization module in this application, it will be further explained and illustrated below. Figure 1 and Figure 2 As shown, the sterilization module may include: a tube body 1, a water inlet component 3, a UV generator module 5, and a cover body 4. A flow channel 11 is provided within the tube body 1, and the tube body 1 includes an inlet end and an outlet end. The inlet end and the outlet end may be located at either end of the tube body 1, respectively. Both the inlet end and the outlet end are connected to the flow channel 11. The water inlet component 3 is provided at the inlet end of the tube body 1. The water inlet component 3 is sealed and adapted to the inlet end of the tube body 1 or the inner wall or outer wall of the tube body 1 near the inlet end.

[0061] The water inlet component 3 has a flow channel 31 therein, which is connected to the flow channel 11 so that the fluid flowing through the flow channel 31 can flow into the flow channel 11. Water flows from the flow channel 31 of the water inlet component 3 into the sterilization module and then into the flow channel 11 of the tube body 1.

[0062] As a feasible method, the water inlet component 3 at least partially extends into the tube body 1, and a first sealing structure may be provided between the water inlet component 3 extending into the tube body 1 and the interior of the tube body 1. The first sealing structure is used to prevent water flowing into the tube body 1 from the water inlet component 3 from flowing out from the inlet end.

[0063] To facilitate the installation of the water inlet component 3 and the tube body 1, a first sealing structure can be used to achieve a radial seal between the water inlet component 3 and the interior of the tube body 1. For example, the first sealing structure can include a first annular recess 32 on the outer wall of the water inlet component 3 and a first sealing member 37 disposed within the first recess 32. This sealing method eliminates the need for any machining of the inner wall of the tube body 1. This method can significantly reduce the difficulty of machining the end of the tube body 1, particularly when the tube body 1 is made of PTFE. For example, the first sealing member 37 can be a sealing ring, such as a rubber ring.

[0064] As feasible, Figure 1 and Figure 2 As shown, the sterilization module may include: an outlet component 2 provided at the outlet end of the tube body 1. The outlet component 2 is sealed and adapted to the outlet end of the tube body 1 or the inner wall or outer wall of the tube body 1 near the outlet end.

[0065] As feasible, the tube body 1 can be a straight tube or a curved tube. In order to facilitate processing to form the tube body 1, as a preferred embodiment, the tube body 1 is a straight tube.

[0066] like Figure 1 and Figure 2As shown, the UV generator module 5 is disposed adjacent to the water inlet component 3. The UV generator module 5 is disposed downstream of the water inlet component 3 and is disposed opposite at least a portion of the flow channel 11, so that the UV light emitted by the UV generator module 5 in operation can at least illuminate at least a portion of the flow channel 11, thereby sterilizing the water flowing through the flow channel 11. Alternatively, the UV generator module 5 can be disposed within the pipe body 1 so that the UV light emitted can at least illuminate at least a portion of the flow channel 11.

[0067] like Figure 1 As shown, the cover body 4 can be made of a light-transmitting material. The cover body 4 is arranged on the outside of the ultraviolet generating module 5 to isolate the ultraviolet generating module 5 from the fluid flowing into the tube body 1. The cover body 4 can allow the ultraviolet light emitted by the ultraviolet generating module 5 to penetrate and illuminate at least part of the flow channel 11.

[0068] like Figure 1 As shown, the cover body 4 can be installed at one end of the water inlet component 3 facing the flow channel 11 and form a water-proof chamber 6 between the water inlet component 3. The ultraviolet generating module 5 is arranged in the water-proof chamber 6. The ultraviolet generating module 5 may include a first surface arranged opposite to the water inlet component 3 and a second surface arranged opposite to the flow channel 11. At least part of the cover body 4 is arranged on one side of the second surface. The water-proof chamber 6 is completely isolated from the flow channel 31, the fluid in the flow channel 11, etc. by the cover body 4 to prevent water from entering the water-proof chamber 6 and causing a short circuit in the ultraviolet generating module 5.

[0069] In order to facilitate the transfer of heat generated by the UV generator module 5 to the water inlet component 3, so that the heat is then carried away by the water flowing through the flow channel 31, it is feasible that at least a portion of the first surface is disposed in contact with the water inlet component 3 or heat exchange is achieved with the water inlet component 3 via a thermally conductive material. The thermally conductive material can be a material with a high thermal conductivity such as thermal grease.

[0070] In order to further improve the heat exchange rate between the UV generator module 5 and the water flowing through the flow channel 31, the water inlet component 3 can be made of a metal material with a high thermal conductivity. In order to prevent the water inlet component 3 from rusting and corroding and affecting the water quality of the water flowing through the flow channel 31, the water inlet component 3 can be made of a stainless steel material.

[0071] When the water inlet component 3 at least partially extends into the tubular body 1, the flow passage 31 disposed therein has an outlet facing the inner wall of the tubular body 1 and located downstream of the first sealing structure. A gap 7 is formed between the portion of the water inlet component 3 extending into the tubular body 1 and the inner wall of the tubular body 1. This gap 7 connects the flow passage 31 with the flow passage 11. Fluid flowing out of the outlet can flow into the gap 7 and, through this gap, into the flow passage 11. The gap 7 can extend parallel to the extension direction of the tubular body 1, and its cross-section perpendicular to the extension direction of the tubular body 1 can be annular.

[0072] In order to form a sealed watertight chamber 6 between the cover 4 and the water inlet component 3, and at the same time to allow the fluid flowing out of the outlet to flow into the gap 7 and then into the flow channel 11 through the gap 7, Figure 4 FIG. 1 is a schematic structural diagram of the cover body in an embodiment of the present utility model. Figure 4 As shown, the light-transmissive cover body 4 may include a top wall 41 facing the ultraviolet generating module 5 and a side wall 42 surrounding the ultraviolet generating module 5, and the top wall 41 and the side wall 42 are connected. The side wall 42 can extend into the gap 7, and a second sealing structure is provided between the inner surface of the side wall 42 and the outer wall of the part of the water inlet component 3 extending into the tube body 1, and the second sealing structure is provided downstream of the outlet. The second sealing structure keeps the water-proof chamber 6 sealed from the outside. In order to facilitate the installation of the cover body 4 to the water inlet component 3 and form a sealed water-proof chamber 6, radial sealing can be achieved between the inner surface of the side wall 42 and the outer wall of the part of the water inlet component 3 extending into the tube body 1 through the second sealing structure.

[0073] For example, Figure 1 As shown, the second sealing structure may include a second annular recess 35 on the outer wall of the water inlet component 3 and a second sealing member 38 disposed in the second recess 35. In this manner, the second sealing member 38 can be pre-installed in the first recess 32, and the cover 4 only needs to be sleeved onto the outer wall of the water inlet component 3.

[0074] When the side wall 42 extends into the gap 7, a gap 8 is formed between the side wall 42 and the inner wall of the tube body 1, connecting the outlet and the flow channel 11. Similarly, the gap 8 extends in a direction parallel to the extension direction of the tube body 1, and the cross-section of the gap 8 in a direction perpendicular to the extension direction of the tube body 1 can be annular.

[0075] In order to facilitate the processing and forming of the flow channel 31 on the water inlet component 3, as shown in FIG. Figure 1 As shown, for example, the flow channel 31 can be formed by drilling, and the flow channel 31 can include a first flow channel 311 and a second flow channel 312 that are interconnected. The first flow channel 311 is arranged in a direction parallel to the extension direction of the tube body 1, and the second flow channel 312 is arranged in a direction perpendicular to the extension direction of the tube body 1.

[0076] Furthermore, if Figures 1 to 3 As shown, the water inlet component 3 may include a first water inlet component portion 33 and a second water inlet component portion 34 along the axial direction. The second water inlet component portion 34 extends into the tube body 1, so that the outer wall of the second water inlet component portion 34 and the inner side of the side wall 42 of the cover body 4 are sealed by the second sealing structure.

[0077] like Figures 1 to 3As shown, the first part 33 of the water inlet component can be sealed with the pipe body 1. As a feasible method, the first part 33 of the water inlet component can extend into the pipe body 1, and the outer wall of the first part 33 of the water inlet component and the inner wall of the pipe body 1 are sealed by a first sealing structure.

[0078] The diameter of the side wall of the water inlet component 3 corresponding to the first sealing structure is larger than the diameter of the side wall of the water inlet component 3 corresponding to the second sealing structure. In other words, the radius of the second portion 34 of the water inlet component is smaller than the radius of the first portion 33 of the water inlet component, so that there is a sufficient gap 7 between the outer wall of the second portion 34 of the water inlet component and the inner wall of the tube body 1 to accommodate the side wall 42 of the cover body 4 and form a gap 8.

[0079] As feasible, Figures 1 to 3 As shown, the outer wall of the water inlet component 3 has an annular groove 36. One end of the second flow channel 312 extends to the bottom of the groove 36. The second flow channel 312 is connected to the spacer 8 through the groove 36. In the extension direction of the pipe body 1, the groove 36 is located between the first sealing structure and the second sealing structure.

[0080] For example, Figure 1 As shown, the outer wall of the water inlet component 3 between the first portion 33 and the second portion 34 of the water inlet component has an annular groove 36, and the second flow channel 312 extends to the bottom of the groove 36. In this way, water flowing out of the flow channel 31 can first enter the annular groove 36 before flowing into the gap 8, allowing the water to diffuse circumferentially, thereby flowing into the gap 8 more evenly in the circumferential direction, thereby ensuring a relatively uniform water flow rate at different circumferential positions of the gap 8. To achieve the above effect, there can be multiple second flow channels 312, and the multiple second flow channels 312 are distributed circumferentially. This allows the water output from the first flow channel 311 to be divided into multiple paths through the multiple second flow channels 312, reaching different positions in the annular groove 36 in the circumferential direction, thereby flowing into the gap 8 more evenly in the circumferential direction, and ultimately flowing into the flow channel 11 in the pipe body 1.

[0081] Through the above-mentioned methods, after passing through the gap 8, the water can flow into the flow channel 11 of the tube body 1 relatively evenly in the circumferential direction, thereby effectively reducing the speed of water flowing through the flow channel 11 at the same flow rate, thereby increasing the time that the ultraviolet light emitted by the ultraviolet generating module 5 irradiates the fluid flowing through the flow channel 11.

[0082] As feasible, Figure 2 and Figure 3As shown, a first positioning hole is opened on the side wall of the first part 33 of the water inlet component, and a second positioning hole is opened on the side wall of the tube body 1. The first positioning hole and the second positioning hole are aligned with each other, and a first positioning member is inserted into the two to achieve locking between the water inlet component 3 and the tube body 1.

[0083] As feasible, Figure 3 As shown, the water inlet component 3 is provided with a wire hole in the axial direction, which does not intersect with the flow channel 31 and passes through the water inlet component 3, thereby communicating with the water-proof chamber 6. A wire for powering the ultraviolet generating module 5 is installed in the wire hole.

[0084] As a feasible method, since radial sealing is adopted between the cover 4 and the water inlet component 3, the two can move in the axial direction. Figure 1 As shown, the inner sidewall of the tube body 1 may have a limiting portion 12, which is used to limit the cover body 4 to prevent the cover body 4 from separating from the water inlet component 3 in the direction of the flow channel 11. To facilitate processing and forming the limiting portion 12 on the inner sidewall of the tube body 1, the limiting portion 12 may include a first step, which directly or indirectly abuts the cover body 4 in the axial direction.

[0085] like Figure 1 and Figure 2 As shown, the sterilization module may include: a spoiler 9 arranged in the tube body 1, the spoiler 9 is used to disturb the fluid flowing from the interval 8 into the flow channel 11. As a feasible method, the spoiler 9 can be arranged at the end surface of the top wall 41 of the cover body 4 facing the flow channel 11, and a connecting channel 93 extending radially is formed between the spoiler 9 and the top wall 41 of the cover body 4. The first water passage is connected to the flow channel 11 through the connecting channel 93. The connecting channel 93 allows the water output from the interval 8 to flow to the central area of ​​the cover body 4, and the central area is close to the cover body 4, so that the water can be irradiated by the high-intensity ultraviolet light emitted by the ultraviolet generating module 5. The irradiation time is also guaranteed to a certain extent, which greatly improves the sterilization effect on water.

[0086] In a specific embodiment, Figure 5 FIG. 1 is a schematic diagram of the structure of the spoiler in the embodiment of the present utility model, as shown in FIG. Figure 5As shown, the spoiler 9 may include a spoiler body 91 and a plurality of protrusions 92 extending toward the cover 4. The plurality of protrusions 92 are distributed circumferentially, and gaps are formed between adjacent protrusions 92, forming a connecting channel 93. The spoiler body 91 has an opening 94, and the connecting channel 93 is connected to the flow channel 11 through the opening 94. The above-mentioned gap not only allows the water output from the gap 8 to flow to the central area of ​​the cover 4, but also ensures that the water output from the gap 8 flows relatively evenly to the central area of ​​the cover 4 in the circumferential direction, thereby increasing the time that the water is irradiated by the high-intensity ultraviolet light emitted by the ultraviolet generating module 5, thereby further improving the sterilization effect on the water.

[0087] When the inner wall of the tube body 1 has a limiting portion 12, the protrusion 92 can abut the cover body 4, and the spoiler body 91 abuts the limiting portion 12. In this way, the spoiler 9 can be limited in the axial direction and cannot move in the axial direction.

[0088] Figure 6 This is a schematic diagram of the structure of the outlet component in the embodiment of the present utility model. Figure 1 、 Figure 2 and Figure 6 As shown, the outlet component 2 is used to seal the outlet end of the tube body 1. The outlet component 2 can at least partially extend into the tube body 1. A third sealing structure is used to seal the outer wall of the outlet component 2 against the inner wall of the tube body 1. To facilitate the installation of the outlet component 2 and the tube body 1, the third sealing structure can be used to achieve a radial seal between the outlet component 2 and the interior of the tube body 1. For example, the third sealing structure can include an annular third recess 23 on the outer wall of the outlet component 2 and a third sealing member 22 disposed within the third recess 23. This sealing method eliminates the need for any machining on the inner wall of the tube body 1. This method can significantly reduce the difficulty of machining the end of the tube body 1, particularly when the tube body 1 is made of PTFE. The third sealing member 22 can be a sealing ring, such as a rubber ring. The outlet component 2 includes a water outlet channel 21, which is connected to the flow channel 11. Water flowing through the flow channel 11 flows out through the water outlet channel 21 of the outlet component 2.

[0089] As a feasible method, in order to prevent the outlet component 2 from rusting and corroding and affecting the water quality of the water flowing through the water outlet channel 21 , the outlet component 2 may be made of stainless steel.

[0090] As feasible, Figure 2 and Figure 6 As shown, the end of the outlet component 2 away from the pipe body 1 can be processed with a connection structure to facilitate the connection of other pipeline components with the outlet component 2 to receive the water output from the water outlet channel 21. Figure 2 and Figure 3As shown, one end of the water inlet component 3 facing away from the pipe body 1 can be processed with a connection structure to facilitate the connection of other pipeline components to the water inlet component 3.

[0091] As feasible, Figure 1 As shown, a second step 13 is provided on the inner side wall of the tube body 1 , and the second step 13 abuts against the outlet component 2 , thereby controlling the distance that the outlet component 2 extends into the tube body 1 .

[0092] As a feasible method, a third positioning hole is opened on the side wall of the outlet component 2, and a fourth positioning hole is opened on the side wall of the tube body 1. The third positioning hole is aligned with the fourth positioning hole, and a second positioning piece is inserted into the two to achieve locking between the outlet component 2 and the tube body 1.

[0093] Figure 7 This is a schematic diagram of the structure of the flow equalizer in the embodiment of the present utility model. Figure 7 As shown, the sterilization module may include: a flow equalizer 10 having a plurality of openings 101, and the flow channel 11 is connected to the water outlet channel 21 through the openings 101. The flow equalizer 10 is used to allow the water in the flow channel 11 in the tube body 1 to flow out from the water outlet channel 21 of the outlet component relatively evenly at various positions, so as to avoid the water flow rate in the flow channel 11 near the inner wall of the tube body 1 being too slow, and the water flow rate in the middle area of ​​the flow channel 11 being relatively high, which causes most of the water to flow out at a high speed through the middle area of ​​the flow channel 11, so that the time it is irradiated by the ultraviolet light emitted by the ultraviolet generating module 5 will be greatly reduced, affecting the sterilization effect. For the flow equalizer 10, some of the openings 101 are located in the edge area of ​​the flow equalizer 10, and some of the openings 101 are located in the middle area of ​​the flow equalizer 10. The openings 101 are relatively evenly distributed at various positions, thereby ensuring that the water in the flow channel 11 can flow out from the water outlet channel 21 of the outlet component 2 relatively evenly at various positions. The flow balancing member 10 can be arranged at the second step 13 and abutted by the outlet component 2 , thereby achieving position limitation of the flow balancing member 10 .

[0094] In order to further improve the sterilization effect of water when it flows through the flow channel 11 in the tube body 1, the inner wall of the tube body 1 can reflect ultraviolet light, so that the ultraviolet light emitted by the ultraviolet generating module 5 can repeatedly irradiate the water in the flow channel 11. In order to make the inner wall of the tube body 1 have a higher reflectivity for ultraviolet light, the inner wall of the tube body 1 needs to have a higher reflectivity. At present, the tube body 1 made of PTFE material can better meet the above requirements. In particular, when the roughness of the inner wall of the tube body 1 is less than or equal to 0.8 microns, it can not only efficiently reflect ultraviolet light, but also the reflection can be diffuse reflection, which can achieve uniform sterilization of water at different positions in the flow channel 11. However, when using a tube body 1 made of PTFE material, there are the following technical obstacles: the raw material of the tube body 1 made of PTFE material before being processed into the tube body 1 is a cylindrical rod formed by extruding molten polytetrafluoroethylene through an extruder. Afterwards, the rod needs to be processed into the tube body 1 with the flow channel 11 by lathing. Polytetrafluoroethylene cannot be formed into the tube body 1 by injection molding, mainly due to its high melting point, high melt viscosity, and shape stability in the molten state. These characteristics make PTFE unsuitable for conventional plastic molding processes such as injection molding. Due to the above reasons, in order to reduce the cost of forming the tube body 1 by turning the rod body, the water inlet and outlet ports are not machined on the tube body 1. In particular, when the water inlet and outlet ports need to have connection structures for connecting to other pipeline components, the turning process of the water inlet and outlet ports is more complicated and time-consuming. Since the flow channel 11 needs to be turned, the water inlet and outlet ports can only be located on the side wall of the tube body 1. Once such a design is made, more consumables are required for the rod body, and the overall cost will be significantly increased. Therefore, in the prior art, a metal shell can only be installed on the outside of the tube body 1 to set the water inlet and outlet ports on the metal shell. However, this also increases the cost due to the additional metal shell, and the sterilization module has too many parts and is not simple enough.

[0095] In view of the above situation, in the present application, water inlet is achieved through the water inlet component 3 having a flow channel 31, and water outlet is achieved through the outlet component 2 having a water outlet channel 21. That is to say, the water inlet port can be set on the water inlet component 3, and the water outlet port can be set on the outlet component 2. In this way, there is no need to set any water inlet port and water outlet port on the entire tube body 1, and water inlet and outlet of the sterilization module can also be achieved. At the same time, when water flows through the flow channel 31, it can dissipate heat to the water inlet component 3, thereby achieving heat dissipation of the ultraviolet generating module 5. Afterwards, since a gap 8 is formed between the side wall 42 of the cover body 4 and the inner wall of the tube body 1, the water flowing out of the flow channel 31 can smoothly reach the flow channel 11 in the tube body 1 through the gap 8. In addition, the sealing method between the water inlet component 3 and the inner wall of the tube body 1, and the sealing method between the outlet component 2 and the inner wall of the tube body 1 do not require any structure to be processed on the inner wall side of the tube body 1, which greatly reduces the cost of machining the tube body 1. Furthermore, when the rod is processed to form the tube body 1, at most, the first and second steps 13 for the position limiting function need only be processed. The processing method of the first and second steps 13 can be the same as the processing method for forming the flow channel 11. They only need to be processed together when the flow channel 11 is formed, which is simple, convenient and fast. Overall, the sterilization module of the present application can directly use the tube body 1 made of PTFE material as the outer shell, simplifying the parts and greatly reducing the cost of the entire module.

[0096] This application also proposes a water purification device, comprising: a filter assembly; and a sterilization module, such as any of the aforementioned, connected downstream of the purified water outlet of the filter assembly to sterilize the purified water output by the filter assembly. The filter assembly is used to filter water to produce purified water. The filter assembly can be any existing component capable of filtering water, such as a fine filtration assembly such as an RO membrane filtration assembly, a nanofiltration membrane filtration assembly, an ultrafiltration membrane filtration assembly, or a pre-filtration assembly or a post-filtration assembly.

[0097] The water purifier also includes a water outlet mechanism, which is used to output the purified water produced by the water purifier for user use. A sterilization module is located upstream of the water outlet mechanism. The sterilized water is then delivered to the water outlet mechanism, ensuring that the normal temperature purified water output by the water outlet mechanism has a low bacterial count, ensuring user water safety.

[0098] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "essentially consisting of..." describing a combination should include the identified elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, ingredients, parts or steps herein also contemplates an embodiment that is essentially composed of these elements, ingredients, parts or steps. By using the term "may", it is intended to illustrate that any attribute described that "may" include is optional. Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "an" used to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.

[0099] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to in detail. The above embodiments are only for illustrating the technical concept and features of the utility model. Their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They are not intended to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.

Claims

1. A sterilization module, characterized in that: The sterilization module includes: A tube body, wherein a flow channel is provided in the tube body, the tube body includes an inlet end and an outlet end, and the inlet end and the outlet end are both in communication with the flow channel; a water inlet component provided at the inlet end of the pipe body, wherein the water inlet component has a flow passage therein, the flow passage being in communication with the flow channel so that the fluid flowing through the flow passage can flow into the flow channel; an ultraviolet generating module disposed adjacent to the water inlet component, the ultraviolet generating module disposed downstream of the water inlet component, the ultraviolet generating module disposed opposite to at least a portion of the flow channel, and the ultraviolet light emitted by the ultraviolet generating module in an operating state can irradiate at least a portion of the flow channel; A light-transmissive cover is provided on the outside of the ultraviolet generating module to isolate the ultraviolet generating module from the fluid flowing into the tube body.

2. The sterilization module according to claim 1, characterized in that: The water inlet component is sealed and adapted to the inlet end of the tube body or the inner wall or outer wall of the tube body close to the inlet end, and the ultraviolet generating module is arranged inside the tube body.

3. The sterilization module according to claim 2, characterized in that: The water inlet component at least partially extends into the tube body, and a first sealing structure is provided between the water inlet component extending into the tube body and the interior of the tube body. The first sealing structure is used to prevent water flowing into the tube body from the water inlet component from flowing out from the inlet end.

4. The sterilization module according to claim 3, characterized in that: The flow passage arranged in the water inlet component has an outlet, which faces the inner wall of the tube body and is located downstream of the first sealing structure; a gap is formed between the part of the water inlet component extending into the tube body and the inner wall of the tube body, and the gap connects the flow passage and the flow channel, and the fluid flowing out of the outlet flows into the gap and flows into the flow channel through the gap.

5. The sterilization module according to claim 4, characterized in that: The light-transmissive cover comprises a top wall facing the ultraviolet generating module and side walls surrounding the ultraviolet generating module, and the top wall and the side walls are connected.

6. The sterilization module according to claim 5, characterized in that: The side wall extends into the gap, and a second sealing structure is provided between the inner surface of the side wall and the outer wall of the water inlet component extending into the tube body. The second sealing structure is provided downstream of the outlet.

7. The sterilization module according to claim 6, characterized in that: A gap is formed between the side wall and the inner wall of the tube body to connect the outlet and the flow channel.

8. The sterilization module according to claim 1, characterized in that: The flow passage includes a first flow passage and a second flow passage that are interconnected. The first flow passage is arranged in a direction parallel to the extension direction of the tube body, and the second flow passage is arranged in a direction perpendicular to the extension direction of the tube body.

9. The sterilization module according to claim 1, characterized in that: The ultraviolet generating module includes a first surface arranged opposite to the water inlet component and a second surface arranged opposite to the flow channel, at least part of the cover body is arranged on one side of the second surface, and at least part of the first surface is arranged in contact with the water inlet component or realizes heat exchange with the water inlet component through heat conductive material.

10. The sterilization module according to claim 7, characterized in that: The sterilization module includes a flow disruptor disposed in the tube body, and the flow disruptor is used to disrupt the fluid flowing into the flow channel from the interval.

11. The sterilization module according to claim 10, characterized in that: The spoiler is arranged at the end surface of the top wall facing the flow channel. A communication channel extending in the radial direction is formed between the spoiler and the top wall. The space is communicated with the flow channel through the communication channel.

12. The sterilization module according to claim 11, characterized in that: The spoiler includes a spoiler body and a plurality of protrusions extending toward the cover body, wherein the plurality of protrusions are distributed along the circumferential direction, and gaps are formed between adjacent protrusions, and the gaps form the communication channel; The spoiler body has an opening, and the communication channel is communicated with the flow channel through the opening.

13. The sterilization module according to claim 12, characterized in that: The inner side wall of the tube body is provided with a limiting portion, and the limiting portion is used to limit the cover body to prevent the cover body from separating from the water inlet component in the direction of the flow channel; The protrusion abuts against the cover, and the spoiler body abuts against the limiting portion.

14. The sterilization module according to claim 1, characterized in that: The sterilization module includes: An outlet component is arranged at the outlet end of the tube body, and a water outlet channel is formed in the outlet component, and the water outlet channel is communicated with the flow channel.

15. The sterilization module according to claim 14, characterized in that: The sterilization module includes: A flow equalizer having multiple openings, some of the openings are located in the edge area of ​​the flow equalizer, and some of the openings are located in the middle area of ​​the flow equalizer. The flow equalizer is arranged at the inlet of the water outlet channel or in the water outlet channel, and the flow channel is connected to the water outlet channel through the openings.

16. The sterilization module according to claim 15, characterized in that: The inner side wall of the tube body is provided with a second step, and the second step abuts against the outlet component.

17. The sterilization module according to claim 16, characterized in that: The flow equalizing member is arranged at the second step and is supported by the outlet member.

18. The sterilization module according to claim 1, characterized in that: The inner side wall of the tube body can reflect the ultraviolet light.

19. The sterilization module according to claim 1, characterized in that: The tube body is made of PTFE material.

20. The sterilization module according to claim 19, characterized in that: The roughness of the inner wall of the tube body is less than or equal to 0.8 microns.

21. The sterilization module according to claim 19, characterized in that: The tube body is a straight tube.

22. The sterilization module according to claim 9, characterized in that: The water inlet component is made of metal material.

23. The sterilization module according to claim 7, characterized in that: The flow passage comprises a first flow passage and a second flow passage that are interconnected, wherein the first flow passage is arranged in a direction parallel to the extension direction of the tube body, and the second flow passage is arranged in a direction perpendicular to the extension direction of the tube body; An annular groove is provided on the outer side wall of the water inlet component, one end of the second flow channel extends to the bottom of the groove, and the second flow channel is communicated with the gap through the groove.

24. The sterilization module according to claim 23, characterized in that: There are multiple second flow passages, and the multiple second flow passages are distributed in a circumferential direction.

25. The sterilization module according to claim 23, characterized in that: The groove is located between the first sealing structure and the second sealing structure.

26. The sterilization module according to claim 23, characterized in that The diameter of the side wall of the water inlet component corresponding to the first sealing structure is greater than the diameter of the side wall of the water inlet component corresponding to the second sealing structure.

27. The sterilization module according to claim 14, characterized in that The outlet component blocks the outlet end of the tube body, and the outlet component at least partially extends into the tube body; radial sealing is achieved between the outer wall of the outlet component and the inner wall of the tube body through a third sealing structure.

28. A water purification device, characterized in that: The water purification device comprises: Filter components; The sterilization module according to any one of claims 1 to 27, wherein the sterilization module is connected downstream of the clean water outlet of the filter assembly.

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