Self-cooling flow water sterilization device

Abstract

The application discloses a self-cooling type flowing water sterilization device, and relates to the technical field of water purification equipment, comprising a flow guide pipe assembly and an ultraviolet LED light source assembly. The flow guide pipe assembly has a flow guide inner cavity, and the two ends of the flow guide inner cavity are respectively an inlet and an outlet. The side wall of the flow guide pipe assembly is provided with a mounting hole, and the mounting hole is communicated with the flow guide inner cavity. The ultraviolet LED light source assembly has a light emitting end capable of emitting ultraviolet light. The ultraviolet LED light source assembly is fixed at the mounting hole, and at least part of the light emitting end extends into the flow guide inner cavity. Compared with the prior art, the self-cooling type flowing water sterilization device can realize the following advantages: no additional cooling components are needed, water body self-heat dissipation is utilized, and the production and operation and maintenance costs of the whole machine are reduced.

Description

Technical Field

[0001] This invention relates to the field of water purification equipment technology, and in particular to a self-cooling flowing water sterilization device. Background Technology

[0002] Currently, most high-flow-rate water UV sterilization equipment on the market uses multiple PCB substrates with a large number of UVC UV lamps arranged in series and parallel, resulting in high overall installed power and heat generation. To solve the problem of heat dissipation of the light source, existing equipment generally requires an additional independent air-cooling or water-cooling system. The main body of the equipment is mostly made of metals such as stainless steel, copper, and aluminum, resulting in a complex overall structure, a large number of parts, and high processing, forming, and assembly manufacturing costs.

[0003] In practical applications such as high-flow water supply and circulating water treatment, both traditional air-cooled and water-cooled auxiliary heat dissipation solutions have significant technical shortcomings and application defects: First, the system structure is redundant and complex, with numerous pipes, fans, water pumps, and heat dissipation accessories. On-site equipment installation, pipe connection, and system debugging have high professional thresholds, and the overall integration is low, which is not conducive to standardized mass deployment. Second, the lifespan of core heat dissipation components such as fans and circulating water pumps is limited. Long-term continuous operation results in a high failure rate and easy wear and tear, which cannot meet the requirements of continuous and long-term operation of high-flow water systems. Third, the continuous operation of additional heat dissipation components will generate fixed energy consumption, and the workload of subsequent component replacement, pipe maintenance, and fault repair is large, resulting in high maintenance labor and parts costs. Fourth, traditional sterilization units are mostly fixed integral structures, which cannot be flexibly added or removed according to the actual water treatment flow and sterilization level requirements. The products have poor versatility, numerous models and specifications, and heavy material inventory pressure for enterprises. Summary of the Invention

[0004] The purpose of this invention is to provide a self-cooling flowing water sterilization device to solve the problems existing in the above-mentioned related technologies, realize the elimination of additional cooling components, utilize the self-heating of water to cool down, and reduce the overall production and operation and maintenance costs.

[0005] To achieve the above objectives, the present invention provides the following solution: This invention discloses a self-cooling flowing water sterilization device, comprising: A flow guide tube assembly has a flow guide inner cavity, with an inlet and an outlet at both ends of the flow guide inner cavity; the side wall of the flow guide tube assembly has a mounting hole that communicates with the flow guide inner cavity; An ultraviolet LED light source assembly has a light-emitting end capable of emitting ultraviolet light; the ultraviolet LED light source assembly is fixed at the mounting hole, such that at least a portion of the light-emitting end extends into the flow guide cavity.

[0006] In some examples, the guide tube assembly includes an outer tube and an inner tube, the outer tube being sleeved on the outside of the inner tube; the mounting holes include a hole one on the outer tube and a hole two on the inner tube, the hole one and the hole two being directly opposite each other; the inner surface of the inner tube is a diffuse reflective surface.

[0007] In some examples, the outer tube is made of metal and the inner tube is made of polytetrafluoroethylene.

[0008] In some examples, the first hole is a threaded hole, and the ultraviolet LED light source assembly is threadedly connected to the first hole.

[0009] In some examples, there are multiple mounting holes, and each mounting hole is fixed with one of the ultraviolet LED light source components.

[0010] In some examples, the ultraviolet LED light source assembly includes: The base includes a coaxially arranged cylinder and an annular inner edge; the cylinder has internal threads and external threads; the annular inner edge is connected to the inner side of one end of the cylinder that extends into the guide cavity; The radiator mates with the internal thread of the cylinder; A light-transmitting sheet is clamped between the inner edge of the annular ring and the heat sink; A circuit board assembly, embedded in the heat sink near the light-transmitting sheet, includes a circuit board and a light source; the circuit board is electrically connected to the light source, which is used to emit ultraviolet light.

[0011] In some examples, the base further includes a limiting structure; the limiting structure is connected to one end of the cylinder opposite to the annular inner edge and is used to abut against and limit the flow guide assembly.

[0012] In some examples, a sealing ring one is provided between the light-transmitting sheet and the inner annular edge; the limiting structure is an outer annular edge, and a sealing ring two is provided between the outer annular edge and the outer wall of the guide tube assembly.

[0013] In some examples, the circuit board assembly also includes a thermistor electrically connected to the circuit board; The self-cooling flowing water sterilization device also includes a control board and an alarm; the control board is electrically connected to the circuit board and is used to control the switching of the light source, sample the current of the thermistor, and calculate the temperature of the thermistor; the alarm is electrically connected to the control board and is used to issue an alarm signal when the temperature range of the thermistor reaches a preset range.

[0014] In some examples, the self-cooled flowing water sterilization device further includes a housing, which is fixedly connected to the flow guide assembly, with the ultraviolet LED light source assembly and the control board located inside the housing; at least a portion of the alarm is located outside the housing.

[0015] Compared with related technologies, the present invention achieves the following technical effects: The structure adopts a separate arrangement of the flow guide tube assembly and the ultraviolet LED light source assembly. By opening the mounting hole on the side wall of the flow guide tube assembly, the light-emitting end of the ultraviolet LED light source assembly is extended into the inner cavity of the flow guide, so that the light-emitting component is in direct contact with the flowing water. The water flow is used to achieve self-cooling and heat dissipation, eliminating the need for additional air cooling or water cooling devices. This simplifies the overall structure and reduces manufacturing costs and maintenance difficulties.

[0016] In a preferred embodiment of the present invention, the outer tube is made of metal to ensure the structural strength and pressure-bearing capacity of the guide tube assembly, thereby improving the durability and installation stability of the device. The inner tube is made of polytetrafluoroethylene (PTFE), which has excellent water resistance, UV aging resistance, and high diffuse reflectance characteristics. It can efficiently reflect ultraviolet rays, improve sterilization efficiency, and at the same time resist corrosion and extend service life. The combination of the two materials achieves synergistic optimization of structural protection and sterilization performance.

[0017] In a preferred embodiment of the present invention, the limiting structure of the base abuts against the outer wall of the guide tube assembly, which can accurately limit the assembly depth of the ultraviolet LED light source assembly, avoid screwing in too deeply or not in place, ensure that the size of the light-emitting end extending into the guide tube cavity is stable and consistent, improve the assembly positioning accuracy and sealing reliability, and achieve rapid and standardized installation.

[0018] In a preferred embodiment of the present invention, the circuit board assembly is equipped with a thermistor and paired with a control board and an alarm. The control board can control the light source switching, sample the thermistor current, and calculate the temperature in real time, accurately monitoring the operating temperature of the light source. When the temperature exceeds a preset threshold, the alarm is triggered to issue an alarm signal, achieving automatic overheat warning and effectively preventing damage to the light source from overheating, thus improving the device's operational safety and intelligent monitoring capabilities. The control board uses an independent control method for each ultraviolet LED light source assembly, thereby flexibly adjusting the number of working light sources. To improve safety, the control board can automatically control the corresponding light source to shut off power when the detected thermistor temperature exceeds a preset threshold. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a self-cooled flowing water sterilization device in some examples of the present invention; Figure 2 This is an exploded view of a self-cooled flowing water sterilization device in some examples of the present invention; Figure 3 This is a schematic diagram of an ultraviolet LED light source component in some examples of the present invention; Figure 4 This is an exploded view of the ultraviolet LED light source component in some examples of the present invention; Figure 5 This is a schematic diagram of the base in some examples of the present invention; Figure 6 These are schematic diagrams of heat sinks in some examples of the present invention; Figure 7 This is a schematic diagram of the outer tube in some examples of the present invention; Figure 8 This is a schematic diagram of the inner tube in some examples of the present invention.

[0021] In the diagram: 100. Self-cooling flowing water sterilization device; 1. Flow guide pipe assembly; 2. Ultraviolet LED light source assembly; 3. Control board; 4. Alarm; 5. Outer shell; 11. Flow guide inner cavity; 12. Mounting hole; 13. Outer tube; 14. Inner tube; 21. Base; 22. Heat sink; 23. Light-transmitting sheet; 24. Circuit board assembly; 25. Sealing ring one; 26. Sealing ring two; 131. Hole one; 141. Hole two; 211. Cylinder; 212. Annular inner edge; 213. Limiting structure; 221. Heat dissipation groove; 222. Wire hole; 241. Circuit board; 242. Light source; 243. Thermistor; 244. Wire; 251. Groove one; 261. Groove two. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] The purpose of this invention is to provide a self-cooling flowing water sterilization device to solve the problems existing in the above-mentioned related technologies, realize the elimination of additional cooling components, utilize the self-heating of water to cool down, and reduce the overall production and operation and maintenance costs.

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Reference Figures 1-8 This embodiment provides a self-cooling flowing water sterilization device 100, including a flow guide pipe assembly 1 and an ultraviolet LED light source assembly 2.

[0026] The flow guide tube assembly 1 has a flow guide cavity 11, with an inlet and an outlet at its two ends. A mounting hole 12 is formed in the side wall of the flow guide tube assembly 1, communicating with the flow guide cavity 11. The ultraviolet LED light source assembly 2 has a light-emitting end capable of emitting ultraviolet light. The ultraviolet LED light source assembly 2 is fixed at the mounting hole 12, such that at least a portion of the light-emitting end extends into the flow guide cavity 11.

[0027] The working principle of the self-cooled flowing water sterilization device 100 in this embodiment is as follows: The structure adopts a separate arrangement of the flow guide tube assembly 1 and the ultraviolet LED light source assembly 2. By opening the mounting hole 12 on the side wall of the flow guide tube assembly 1, the light-emitting end of the ultraviolet LED light source assembly 2 is extended into the inner cavity 11 of the flow guide tube, so that the light-emitting component is in direct contact with the flowing water. The water flow is used to achieve self-cooling and heat dissipation, eliminating the need for additional air cooling or water cooling devices, simplifying the overall structure, and reducing manufacturing costs and maintenance difficulties.

[0028] In some examples, the guide tube assembly 1 includes an outer tube 13 and an inner tube 14, with the outer tube 13 sleeved over the outer side of the inner tube 14. The mounting hole 12 includes a hole 131 on the outer tube 13 and a hole 141 on the inner tube 14, with the hole 131 and the hole 141 facing each other. The inner surface of the inner tube 14 is a diffuse reflective surface.

[0029] A double-layer flow-guiding structure with an outer tube 13 and an inner tube 14 nested together is adopted. The outer tube 13 has hole 131 facing the inner tube 14, which facilitates the precise assembly of the ultraviolet LED light source assembly 2 and allows the light-emitting end to extend into the inner cavity of the inner tube 14. The inner surface of the inner tube 14 is designed as a diffuse reflective surface, which can effectively improve the ultraviolet reflection efficiency and irradiation uniformity, enhance the sterilization effect, and at the same time, the double-layer tube structure can improve the overall structural strength and sealing reliability of the device.

[0030] In some examples, the outer tube 13 is made of metal, and the inner tube 14 is made of polytetrafluoroethylene.

[0031] The outer tube 13 is made of metal to ensure the structural strength and pressure resistance of the guide tube assembly 1, and to improve the durability and installation stability of the device. The outer tube 13 is preferably made of stainless steel, such as 316 stainless steel. The inner tube 14 is made of polytetrafluoroethylene (PTFE), which has excellent water resistance, UV aging resistance, and high diffuse reflectance. It can efficiently reflect ultraviolet rays, improve sterilization efficiency, and at the same time resist corrosion and extend service life. The combination of the two materials achieves synergistic optimization of structural protection and sterilization performance.

[0032] In some examples, hole 131 is a threaded hole, and the ultraviolet LED light source assembly 2 is threadedly connected to hole 131.

[0033] Hole 131 adopts a threaded hole structure, which enables the ultraviolet LED light source assembly 2 and the outer tube 13 to form a threaded locking assembly. This not only ensures a firm connection and cavity sealing, but also facilitates the quick disassembly and independent replacement of the ultraviolet LED light source assembly 2, significantly improving assembly efficiency and maintenance convenience.

[0034] In some examples, there are multiple mounting holes 12, and each mounting hole 12 is fixed with an ultraviolet LED light source assembly 2.

[0035] Multiple mounting holes 12 can be used to assemble multiple sets of ultraviolet LED light source components 2, allowing for flexible adjustment of the number of powered ultraviolet LED light source components 2 according to water treatment flow rate and sterilization requirements. When the flow rate is low, some ultraviolet LED light source components 2 can be turned off appropriately, while when the flow rate is high, all or most of the ultraviolet LED light source components 2 can be powered on, achieving on-demand matching of sterilization power and effectively improving the device's adaptability to different high-flow-rate operating conditions and sterilization efficiency.

[0036] In some examples, the ultraviolet LED light source assembly 2 includes a base 21, a heat sink 22, a light-transmitting sheet 23, and a circuit board assembly 24. The base 21 includes a coaxially arranged cylinder 211 and an annular inner edge 212. The cylinder 211 has internal and external threads. The annular inner edge 212 is connected to the inner side of one end of the cylinder 211 that extends into the flow guide cavity 11. The heat sink 22 mates with the internal thread of the cylinder 211. The heat sink 22 has heat dissipation grooves 221, which increase the surface area and improve the heat exchange efficiency between the heat sink 22 and the air. The light-transmitting sheet 23 is clamped between the annular inner edge 212 and the heat sink 22. The circuit board assembly 24 is embedded in the side of the heat sink 22 near the light-transmitting sheet 23 and includes a circuit board 241 and a light source 242. The circuit board 241 is electrically connected to the light source 242, which emits ultraviolet light.

[0037] The ultraviolet LED light source assembly 2 adopts an integrated structure of base 21, heat sink 22, light-transmitting sheet 23, and circuit board assembly 24. The base 21's cylindrical 211 achieves a stable connection with the guide pipe and heat sink 22 through its internal and external threads. The annular inner edge 212 and heat sink 22 reliably clamp the light-transmitting sheet 23, ensuring a sealed and waterproof cavity. The heat sink 22, in conjunction with the heat dissipation groove 221, can quickly conduct heat from the light source 242, achieving efficient self-cooling with water flow and extending the lifespan of the light source 242. The circuit board assembly 24 is positioned close to the light-transmitting sheet 23, allowing ultraviolet light to directly irradiate the water, improving light energy utilization and sterilization effect. The overall structure is compact, firmly assembled, and easy to maintain. The light source 242 is preferably a UVC ultraviolet LED, i.e., a semiconductor light-emitting device that emits short-wave ultraviolet light in the range of 200nm to 280nm. The heat sink 22 can be made of copper, and the light-transmitting sheet 23 can be made of quartz glass. The heat sink 22 is provided with a wire hole 222 for the wires 244 connecting the circuit board 241 and the control board 3 to pass through.

[0038] In some examples, the base 21 also includes a limiting structure 213. The limiting structure 213 is connected to one end of the cylinder 211 away from the annular inner edge 212 and is used to abut against and limit the flow tube assembly 1.

[0039] The limiting structure 213 on the base 21 abuts against the outer wall of the guide tube assembly 1, which can precisely limit the assembly depth of the ultraviolet LED light source assembly 2, avoiding excessive or insufficient insertion, ensuring that the size of the light-emitting end extending into the guide tube cavity 11 is stable and consistent, improving assembly positioning accuracy and sealing reliability, and achieving rapid and standardized installation. The preferred size of the light-emitting end of the ultraviolet LED light source assembly 2 extending into the guide tube cavity 11 is not less than 2mm.

[0040] In some examples, a sealing ring 25 is provided between the light-transmitting sheet 23 and the annular inner edge 212. The limiting structure 213 is an annular outer edge, and a sealing ring 26 is provided between the annular outer edge and the outer wall of the guide tube assembly 1.

[0041] A sealing ring 25 is provided between the light-transmitting sheet 23 and the inner annular edge 212, and a sealing ring 26 is provided between the outer annular edge and the outer wall of the guide tube assembly 1, forming a double sealing structure. This effectively prevents water leakage and water vapor from entering electrical components, significantly improving the sealing reliability and operational safety of the device, and ensuring the stable operation of the ultraviolet LED light source assembly 2. The sealing rings 25 and 26 can be made of rubber or silicone. The inner annular edge 212 has a groove 251 for the sealing ring 25 to be inserted, and the outer annular edge has a groove 261 for the sealing ring 26 to be inserted.

[0042] In some examples, circuit board assembly 24 also includes a thermistor 243, which is electrically connected to circuit board 241. The self-cooling flowing water sterilization device 100 also includes a control board 3 and an alarm 4. The control board 3, electrically connected to circuit board 241, is used to control the switching of the light source 242, sample the current of the thermistor 243, and calculate the temperature of the thermistor 243. The alarm 4, electrically connected to control board 3, is used to issue an alarm signal when the temperature of the thermistor 243 reaches a preset range.

[0043] The circuit board assembly 24 is equipped with a thermistor 243 and is paired with a control board 3 and an alarm 4. The control board 3 can control the switching of the light source 242, sample the current of the thermistor 243, and calculate the temperature in real time, accurately monitoring the operating temperature of the light source 242. When the temperature exceeds a preset threshold, the alarm 4 is activated to issue an alarm signal, achieving automatic overheat warning and effectively preventing damage to the light source 242 from overheating, thus improving the operational safety and intelligent monitoring capabilities of the device. The alarm 4 can be either a buzzer or an indicator light, or a combined audible and visual alarm. The control board 3 uses an independent control method for each UV LED light source assembly 242, thereby flexibly adjusting the number of working light sources 242. To improve safety, the control board 3 can automatically control the power-off of the corresponding light source 242 when the detected temperature of the thermistor 243 exceeds a preset threshold.

[0044] In some examples, the self-cooled flowing water sterilization device 100 also includes a housing 5, to which the flow guide pipe assembly 1 is fixedly connected, and the ultraviolet LED light source assembly 2 and control board 3 are located inside the housing 5. At least a portion of the alarm 4 is located outside the housing 5.

[0045] An additional outer casing 5, fixedly connected to the flow guide assembly 1, can house and protect the ultraviolet LED light source assembly 2 and control board 3 within the casing 5, preventing external impacts, dust, and moisture intrusion, and ensuring the safe operation of electrical components. The alarm 4 is at least partially exposed on the outside of the casing 5, facilitating rapid alarm signal detection by on-site personnel and improving fault monitoring and maintenance convenience. The casing 5 can be made of aluminum alloy.

[0046] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A self-cooling flowing water sterilization device (100), characterized in that, include: The flow guide tube assembly (1) has a flow guide inner cavity (11), the two ends of which are the inlet and the outlet, respectively; the side wall of the flow guide tube assembly (1) has a mounting hole (12), which is connected to the flow guide inner cavity (11). The ultraviolet LED light source assembly (2) has a light-emitting end capable of emitting ultraviolet light; the ultraviolet LED light source assembly (2) is fixed at the mounting hole (12) so that at least a portion of the light-emitting end extends into the flow guide cavity (11).

2. The self-cooling flowing water sterilization device (100) according to claim 1, characterized in that: The guide tube assembly (1) includes an outer tube (13) and an inner tube (14), the outer tube (13) being sleeved on the outside of the inner tube (14); the mounting hole (12) includes a hole one (131) on the outer tube (13) and a hole two (141) on the inner tube (14), the hole one (131) and the hole two (141) being directly opposite each other; the inner surface of the inner tube (14) is a diffuse reflective surface.

3. The self-cooling flowing water sterilization device (100) according to claim 2, characterized in that: The outer tube (13) is made of metal, and the inner tube (14) is made of polytetrafluoroethylene.

4. The self-cooling flowing water sterilization device (100) according to claim 3, characterized in that: The first hole (131) is a threaded hole, and the ultraviolet LED light source assembly (2) is threadedly connected to the first hole (131).

5. The self-cooling flowing water sterilization device (100) according to claim 1, characterized in that: There are multiple mounting holes (12), and each mounting hole (12) is fixed with an ultraviolet LED light source assembly (2).

6. The self-cooling flowing water sterilization device (100) according to claim 1, characterized in that, The ultraviolet LED light source assembly (2) includes: The base (21) includes a coaxially arranged cylinder (211) and an annular inner edge (212); the cylinder (211) has internal threads and external threads; the annular inner edge (212) is connected to the inner side of one end of the cylinder (211) that extends into the guide cavity (11); The radiator (22) is engaged with the internal thread of the cylinder (211); The light-transmitting sheet (23) is clamped between the annular inner edge (212) and the heat sink (22); The circuit board assembly (24), embedded in the heat sink (22) on the side near the light-transmitting sheet (23), includes a circuit board (241) and a light source (242); the circuit board (241) is electrically connected to the light source (242), which is used to emit ultraviolet light.

7. The self-cooling flowing water sterilization device (100) according to claim 6, characterized in that: The base (21) also includes a limiting structure (213); the limiting structure (213) is connected to one end of the cylinder (211) away from the annular inner edge (212) and is used to abut against the outer wall of the guide tube assembly (1) for limiting.

8. The self-cooling flowing water sterilization device (100) according to claim 7, characterized in that: A sealing ring (25) is provided between the light-transmitting sheet (23) and the annular inner edge (212); the limiting structure (213) is an annular outer edge, and a sealing ring (26) is provided between the annular outer edge and the outer wall of the guide tube assembly (1).

9. The self-cooling flowing water sterilization device (100) according to claim 7, characterized in that: The circuit board assembly (24) also includes a thermistor (243) which is electrically connected to the circuit board (241); The self-cooling flowing water sterilization device (100) also includes a control board (3) and an alarm (4); the control board (3) is electrically connected to the circuit board (241) and is used to control the switching of the light source (242), sample the current of the thermistor (243), and calculate the temperature of the thermistor (243); the alarm (4) is electrically connected to the control board (3) and is used to issue an alarm signal when the temperature range of the thermistor (243) reaches a preset range.

10. The self-cooling flowing water sterilization device (100) according to claim 9, characterized in that: The self-cooling flowing water sterilization device (100) also includes a housing (5), which is fixedly connected to the flow guide pipe assembly (1). The ultraviolet LED light source assembly (2) and the control board (3) are located inside the housing (5); at least part of the alarm (4) is located outside the housing (5).

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