A laminar flow UVC module

Abstract

The present application discloses a laminar flow UVC module, including a top cover with a water inlet and a water outlet, a heat dissipation housing sealed at the bottom of the top cover, a reflective sleeve on the lower inner wall surface of the heat dissipation housing, a reflective tube connected to the water inlet in the middle of the heat dissipation housing, a horizontal baffle portion extending from the reflective tube to the peripheral direction near the middle position, a gap for water to flow through is left between the baffle portion and the reflective sleeve, the baffle portion, the reflective tube and the reflective sleeve form a sterilization space, the lower part of which is a base, and a UVC light-emitting component is provided on the base for sterilizing the water flowing through the sterilization space, and the sterilized water flows out of the sterilization space and passes through the upper part of the heat dissipation housing, and directly dissipates heat to the outside through the heat dissipation housing and then flows out from the water outlet. The above-mentioned laminar flow UVC module disclosed in the present application has better heat dissipation performance and can improve sterilization efficiency and sterilization intensity.

Description

Technical Field

[0001] The invention belongs to the technical field of water treatment equipment, and in particular relates to a laminar flow UVC module. Background Art

[0002] With the improvement of living standards, people's requirements for sanitary conditions are getting higher and higher, and consumers' demand for household sterilization is increasing. Among them, the miniaturization of UVC LED chips and modules has given sterilization components a broader design space. Its compact size allows it to be implanted in a variety of household appliances, such as refrigerators, air conditioners, and washing machines. It can also be attached to various daily utensils, allowing users to carry it with them, such as water cups, lunch boxes, toothbrushes and other items. The sterilization principle of this UVC LED is: through ultraviolet irradiation, it destroys or terminates the DNA replication process of bacteria, spores and viruses, so as to effectively inhibit the reproduction of bacteria. In the ultraviolet band, it is divided into three types of ultraviolet rays: UVA, UVB and UVC. Among them, the wavelength range of UVA is 315nm to 400nm, the wavelength range of UVB is 280nm to 315nm, and the wavelength range of UVC is 200nm to 280nm. Among them, the UVC band can penetrate microorganisms and human cells and cause damage to DNA. The ultraviolet output with 265nm as the central band can be quickly absorbed by bacteria. Therefore, this is an effective sterilization method. Combining UVCLED sterilization with a faucet can instantly start sterilization and achieve over-flow sterilization.

[0003] The emergence of UVC LEDs has covered many previously sterilization blind spots and also met the needs of people with specific hygiene requirements. This convenience is not only due to the miniaturization of UVC LEDs, but also from their powerful sterilization efficiency. From the current power and photoelectric conversion efficiency, the sterilization time of UVC LEDs is basically controlled within the order of "seconds", so it is very convenient to operate. The emergence of UVC LEDs has dispelled consumers' concerns about toxicity. Its advantage of no toxic risk allows deep ultraviolet sterilization components to be directly placed inside water purifiers and water dispensers. Even if they appear in every corner of the home, it will not cause panic among consumers. When the Minamata Convention comes into effect, UVC LEDs will also replace mercury lamps due to their non-toxic and pollution-free characteristics.

[0004] UVC modules in the prior art are as follows Figure 1 As shown, Figure 1It is a schematic diagram of an existing UVC module, in which an ultraviolet light source 101 is located at the bottom, and a quartz glass 102 is used to accommodate water flow (indicated by the direction of the arrow) above it. The outside of the quartz glass 102 is surrounded by a metal shell 103, and the upper part of the entire module is covered with a plastic shell 104. It should also be noted that the water flow inlet 105 is located directly above the light source. It can be seen that the light source and the heat dissipation module are installed at the bottom of the module for irradiation and sterilization. The water flow enters from the upper end of the module and is converted into laminar flow. The sterilization cavity is a long cylinder, which improves the surface uniformity and penetration of the light. The volume of the rectification area is large. However, the above-mentioned existing UVC module has the following disadvantages: the UVC module simply uses the components themselves to dissipate heat, while the quartz glass cannot dissipate heat, so it is impossible to dissipate heat from the position of the surrounding metal shell, so the heat dissipation function is poor, and a higher power UVC light source cannot be used, resulting in low sterilization efficiency and weak sterilization intensity. Summary of the invention

[0005] To solve the above problems, the present invention provides a laminar flow UVC module, which has better heat dissipation performance and can improve sterilization efficiency and sterilization intensity.

[0006] The present invention provides a laminar flow UVC module, comprising a top cover provided with a water inlet and a water outlet, a heat dissipation shell being sealedly connected to the bottom of the top cover, a reflective sleeve being provided on the lower inner wall surface of the heat dissipation shell, a reflective tube being provided in the middle of the heat dissipation shell and communicating with the water inlet, a horizontal baffle portion extending toward the peripheral direction from the middle of the reflective tube, a gap for water to flow through being reserved between the baffle portion and the reflective sleeve, the baffle portion, the reflective tube and the reflective sleeve forming a sterilization space, a base being provided at the bottom, a UVC light-emitting component being provided on the base for sterilizing water flowing through the sterilization space, the sterilized water flowing out of the sterilization space passes through the upper part of the heat dissipation shell, directly dissipates heat to the outside through the heat dissipation shell, and then flows out from the water outlet.

[0007] Preferably, in the above laminar flow UVC module, a portion of the top cover where the water inlet is connected to the outside and a portion of the top cover where the water outlet is connected to the outside are both located on a side of the top cover.

[0008] Preferably, in the above laminar flow UVC module, the reflective sleeve is a PTFE sleeve.

[0009] Preferably, in the above laminar flow UVC module, the reflective tube is a PTFE test tube.

[0010] Preferably, in the above laminar flow UVC module, the heat dissipation housing is an aluminum alloy housing.

[0011] Preferably, in the above laminar flow UVC module, the upper portion of the UVC light-emitting component is sealed with a quartz glass sheet.

[0012] Preferably, in the above laminar flow UVC module, the lower periphery of the quartz glass sheet and the bottom plate where the UVC light-emitting component is located are separated by a PTFE limiting gasket.

[0013] Preferably, in the above laminar flow UVC module, a silicone sealing ring is used to seal the top of the heat dissipation housing and the top cover.

[0014] Preferably, in the above laminar flow UVC module, the top cover is a plastic top cover.

[0015] Preferably, in the above laminar flow UVC module, the base is further provided with a wire outlet hole for accommodating a power cord.

[0016] From the above description, it can be known that the above-mentioned laminar flow UVC module provided by the present invention, since the baffle portion, the reflective tube and the reflective sleeve form a sterilization space, the lower part of which is a base, and the base has a UVC light-emitting component for sterilizing water flowing through the sterilization space. After the sterilized water flows out of the sterilization space, it passes through the upper part of the heat dissipation shell, directly dissipates the heat to the outside through the heat dissipation shell, and then flows out from the water outlet, so it has better heat dissipation performance and can improve the sterilization efficiency and sterilization intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of an existing UVC module;

[0019] Figure 2 A schematic diagram of an embodiment of a laminar flow UVC module provided by the present invention. DETAILED DESCRIPTION

[0020] The core of the present invention is to provide a laminar flow UVC module, which has better heat dissipation performance and can improve sterilization efficiency and sterilization intensity.

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] An embodiment of a laminar flow UVC module provided by the present invention is as follows: Figure 2 As shown, Figure 2 Schematic diagram of an embodiment of a laminar flow UVC module provided by the present invention, the laminar flow UVC module includes a top cover 203 with a water inlet 201 and a water outlet 202. It can be seen that the water inlet and the water outlet are arranged on the side of the top cover, so that the aging of the water inlet and the water outlet caused by the direct light emitted by the UVC light-emitting component can be avoided. Of course, this is only one of the solutions, and other arrangements can also be used. The lower part of the top cover 203 is sealedly connected to a heat dissipation housing 204. It can be seen that the heat dissipation housing is directly in contact with the outside world. This In this way, the liquid inside can directly dissipate heat to the outside through the heat dissipation shell, so that the heat dissipation rate will be faster. The lower inner wall surface of the heat dissipation shell 204 has a reflective sleeve 205, which is used to continuously diffusely reflect the light emitted by the UVC light-emitting component, so that the liquid therein can be sterilized to a greater extent. In addition, the middle part of the heat dissipation shell 204 has a reflective tube 206 connected to the water inlet 201. As the name suggests, the reflective tube can continuously diffusely reflect the light emitted by the UVC light-emitting component, and the reflective sleeve 205 can be used to sterilize the liquid therein to a greater extent. The reflective tube 206 is matched with the reflective tube 206, and a horizontal baffle portion 207 is extended toward the peripheral direction near the middle position. The baffle portion crosses the sterilization cavity and can effectively reflect most of the UV light source for continuous sterilization. A gap for water to flow through is left between the baffle portion 207 and the reflective sleeve 205, so that water can enter the upper part of the baffle portion through the gap, and after sterilization, it can also return to the upper part from the bottom of the baffle portion to be discharged from the module. It should be emphasized here that the baffle portion 207, the reflective tube 206 and the reflective sleeve 205 are The light sleeve 205 encloses a sterilization space, and the light emitted by the UVC light-emitting component can be repeatedly reflected in this sterilization space, thereby improving the sterilization effect. The lower part thereof is a base 208, and the base 208 has a UVC light-emitting component 209, which is used to sterilize water flowing through the sterilization space. In this case, the sterilized water flows out of the sterilization space and passes through the upper part of the heat dissipation shell 204, and then directly dissipates the heat to the outside through the heat dissipation shell 204 and flows out from the water outlet 202, so the heat dissipation rate is greatly improved.

[0023] From the above description, it can be seen that in the embodiment of the above-mentioned laminar flow UVC module provided by the present invention, since the baffle portion, the reflective tube and the reflective sleeve enclose a sterilization space, the lower portion thereof is a base, and the base has a UVC light-emitting component for sterilizing water flowing through the sterilization space. After the sterilized water flows out of the sterilization space, it passes through the upper portion of the heat dissipation shell, and directly dissipates the heat to the outside through the heat dissipation shell before flowing out from the water outlet. Therefore, it has better heat dissipation performance and can improve the sterilization efficiency and sterilization intensity.

[0024] In a specific embodiment of the laminar flow UVC module, the part where the water inlet 201 on the top cover 203 is connected to the outside world and the part where the water outlet 202 is connected to the outside world are both located on the side of the top cover. In this way, water can enter the main cavity from the side as shown by the arrow, and after repeated laminar flow in the main cavity, it flows out from the side water outlet. It can be seen that the laminar flow fluid design improves the utilization rate of water treatment space. Moreover, in this case, UV light will no longer directly hit the water inlet, thereby avoiding aging and damage of the material at the water inlet, and forming laminar flow in the sterilization cavity, which increases the time for water to flow in the cavity, receives more irradiation from UVC light sources, and has a better sterilization effect.

[0025] In another specific embodiment of the above-mentioned laminar flow UVC module, the reflective sleeve 205 can be preferably a PTFE sleeve, and the reflective tube can also be preferably a PTFE test tube. This PTFE is a polymer chemical material containing polytetrafluoroethylene, has excellent reflective performance, and has a low cost. Moreover, the sleeve made of this material here can ensure that the UV light is more fully reflected, and the radiation illumination per unit volume in the space is greatly improved, thereby achieving better sterilization effect and higher sterilization intensity. Of course, other reflective materials can be selected to make this sleeve according to actual needs, and there is no restriction here.

[0026] In another specific embodiment of the laminar flow UVC module, the heat dissipation housing can be an aluminum alloy housing, so that the fluid water is in direct contact with the aluminum alloy housing, and the heat of the water itself can be directly dissipated to the outside, thereby taking away a large amount of heat energy in the water, greatly improving the heat dissipation performance of the module. Of course, other materials can be used to make the housing according to actual needs, as long as it ensures a good heat dissipation effect.

[0027] Continue to refer Figure 2Those skilled in the art can understand that the upper part of the UVC light-emitting component 209 can be sealed with a quartz glass sheet 210, which has a better sealing effect. Moreover, the lower periphery of the quartz glass sheet 210 and the base 208 where the UVC light-emitting component 209 is located can be separated by a PTFE limiting gasket 211, which can ensure a tighter connection between the two and effectively improve the service life of the module. The top of the heat dissipation housing 204 and the top cover 203 can be sealed with a silicone sealing ring 212, and the quartz glass sheet 210 and the reflective sleeve 205 can also be sealed with a silicone sealing ring 214, which also has a better sealing effect.

[0028] In addition, based on the above-mentioned embodiment of the laminar flow UVC module, the top cover 203 can preferably be a plastic top cover, which is lower in cost, and the base 208 is also provided with an outlet hole 213 for accommodating a power cord, from which a power cord can be led to supply power to the module.

[0029] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laminar flow UVC module, characterized in that: It comprises a top cover provided with a water inlet and a water outlet, the lower part of the top cover is sealedly connected with a heat dissipation shell, the lower inner wall surface of the heat dissipation shell is provided with a reflective sleeve, the middle part of the heat dissipation shell is provided with a reflective tube connected with the water inlet, the reflective tube is a PTFE test tube, a horizontal baffle portion is extended toward the peripheral direction near the middle part of the reflective tube, a gap for water to flow through is left between the baffle portion and the reflective sleeve, the baffle portion, the reflective tube and the reflective sleeve form a sterilization space, the lower part of which is a base, the base is provided with a UVC light-emitting component for sterilizing water flowing through the sterilization space, the sterilized water flows out of the sterilization space, passes through the upper part of the heat dissipation shell, dissipates heat directly to the outside through the heat dissipation shell, and then flows out from the water outlet; The portion of the top cover where the water inlet is connected to the outside and the portion of the water outlet where the water outlet is connected to the outside are both located on the side of the top cover.

2. The laminar flow UVC module according to claim 1, characterized in that: The reflective sleeve is a PTFE sleeve.

3. The laminar flow UVC module according to claim 1, characterized in that: The heat dissipation housing is an aluminum alloy housing.

4. The laminar flow UVC module according to claim 1, characterized in that: The upper part of the UVC light emitting component is sealed by a quartz glass sheet.

5. The laminar flow UVC module according to claim 4, characterized in that: The lower periphery of the quartz glass sheet and the bottom plate where the UVC light-emitting component is located are separated by a PTFE limiting gasket.

6. The laminar flow UVC module according to claim 1, characterized in that: A silicone sealing ring is used to seal the top of the heat dissipation housing and the top cover.

7. The laminar flow UVC module according to claim 1, characterized in that: The top cover is a plastic top cover.

8. The laminar flow UVC module according to claim 1, characterized in that: The base is also provided with a wire outlet hole for accommodating a power line.

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