Anti-freezing ultraviolet sterilization module and method

Abstract

The application provides a kind of anti-freezing ultraviolet sterilization module and method, the device includes: sterilization module main body, sterilization module main body includes transparent tube, shell and joint assembly, the shell is formed with the cavity passing through in, transparent tube is set in the cavity, joint assembly is set at the both ends of transparent tube, and is used to fixedly connect shell, the shell is provided with ultraviolet light generating part, ultraviolet light generating part is set outside transparent tube, and is configured to emit ultraviolet to transparent tube;Temperature control system, temperature control system includes temperature sensor, heating film and controller, temperature sensor is set in the shell, heating film is set on the inner wall of shell, controller is electrically connected with temperature sensor and heating film respectively, to make controller according to the temperature in shell, control heating film opening and closing.This application sets heating film outside transparent tube, ensures that sterilization effect is not affected by low temperature environment, improves the application range and reliability of water sterilization module.

Description

Technical Field

[0001] This invention relates to the field of ultraviolet sterilization technology, specifically to an antifreeze ultraviolet sterilization module and method. Background Technology

[0002] With increasing demands for water quality safety, water sterilization technology is widely used in drinking water treatment, industrial water treatment, and medical and health fields. Common water sterilization technologies include ultraviolet sterilization, ozone sterilization, and chemical sterilization, among which ultraviolet sterilization is widely used due to its advantages such as high efficiency, no residue, and no secondary pollution.

[0003] Existing water sterilization modules suffer from low-temperature issues. When the ambient temperature or water flow temperature is too low, the inside of the water sterilization module is prone to freezing. Ice formation can block the water flow channels, affecting normal water flow; the expansion of ice can damage the internal structure of the sterilization module, and even cause permanent damage to the equipment. This problem is particularly prominent in cold regions or during winter.

[0004] Most water sterilization equipment on the market today lacks effective antifreeze protection measures. Some equipment uses simple water cut-off protection or reminds users to stop using it at low temperatures, which cannot meet the needs of continuous use at low temperatures. Other equipment uses external heating devices for antifreeze, but this requires additional space and energy consumption, increasing system complexity and operating costs. Summary of the Invention

[0005] The present invention provides an antifreeze ultraviolet sterilization module and method. By setting a heating film outside the transparent tube, the sterilization effect is not affected by the low temperature environment, thereby improving the applicability and reliability of the water sterilization module.

[0006] In a first aspect, the present invention provides an antifreeze ultraviolet sterilization module, comprising:

[0007] The sterilization module body includes a transparent tube, a shell, and a connector assembly. A through cavity is formed inside the shell. The transparent tube is disposed inside the cavity. The connector assembly is disposed at both ends of the transparent tube and is used to fix and connect the shell. An ultraviolet generator is disposed inside the shell. The ultraviolet generator is disposed outside the transparent tube and is configured to emit ultraviolet light into the transparent tube.

[0008] A temperature control system includes a temperature sensor, a heating film, and a controller. The temperature sensor is disposed inside the housing, the heating film is disposed on the inner wall of the housing, and the controller is electrically connected to the temperature sensor and the heating film respectively, so that the controller controls the heating film to open and close according to the temperature inside the housing.

[0009] The ultraviolet generator consists of multiple independent control zones, each operating at a different power. The operating power of the region of the ultraviolet generator closer to the connector assembly is higher than that of the region of the ultraviolet generator farther from the connector assembly.

[0010] In some embodiments of this application, the temperature sensor is electrically connected to the ultraviolet generator so that the temperature sensor controls the ultraviolet generator to turn on and off according to the temperature inside the housing.

[0011] In some embodiments of this application, the first connector is disposed at one end of the transparent tube and is used to connect to a fluid fitting; the outer side of the first connector is connected to the first end of the housing.

[0012] The second connector is located at the other end of the transparent tube and is used to connect fluid fittings. The outer side of the second connector is connected to the second end of the housing.

[0013] In some embodiments of this application, and / or;

[0014] The heating film consists of multiple independent control areas, each operating at a different power. The operating power of the area of ​​the heating film closer to the connector assembly is higher than the operating power of the area of ​​the ultraviolet generator farther from the connector assembly.

[0015] In some embodiments of this application, the ultraviolet generator abuts against the housing, and the heating film has a pre-reserved installation notch facing the ultraviolet generator so that when the temperature is higher than a threshold, the ultraviolet generator can dissipate heat through the housing.

[0016] In some embodiments of this application, a heat insulation layer is provided on the outer side of the heating film.

[0017] In some embodiments of this application, a reflective layer is further included, which is disposed between the heating film and the transparent tube, and the reflective layer is made of a material with high thermal conductivity, and / or;

[0018] The reflective layer is disposed between the housing and the heating film, and the heating film is a mesh-like film layer, and / or;

[0019] The reflective layer is disposed between the housing and the heating film, and the heating film is a transparent ceramic material heating film.

[0020] Secondly, this application discloses a control method, which is applied to any of the embodiments described above, the method comprising:

[0021] Obtain temperature values ​​and a preset first temperature range, wherein the temperature values ​​include the temperature values ​​of the transparent tube, the shell, or the connector;

[0022] If the temperature value is within the preset first temperature range, the heating film is controlled to operate.

[0023] In some embodiments of this application, the control method further includes:

[0024] Obtain the temperature value and a preset second temperature range, wherein the lowest value of the second temperature range is higher than or equal to the highest value of the first temperature range;

[0025] If the temperature value is within the preset second temperature range, the ultraviolet generator is controlled to operate.

[0026] In some embodiments of this application, the control method further includes;

[0027] Obtain the temperature value and a preset temperature threshold, wherein the preset temperature threshold is lower than the lowest value in the first temperature range;

[0028] If the temperature value is lower than the preset temperature threshold, the heating film and the ultraviolet generator are controlled to operate simultaneously.

[0029] The beneficial effects of the embodiments of the present invention are as follows:

[0030] In an embodiment of the present invention, the antifreeze ultraviolet sterilization module uses a heating film and a temperature sensor installed outside the transparent tube. The operation of the heating film is controlled according to the temperature value detected by the temperature sensor outside the transparent tube, thereby achieving constant temperature regulation of the ultraviolet sterilization module in cold regions. This effectively solves the problem of ultraviolet sterilization module failure caused by the freezing of fluid inside the ultraviolet sterilization module in low-temperature environments. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0032] Figure 1 This is a schematic diagram of a structure of an antifreeze ultraviolet sterilization module provided in an embodiment of the present invention;

[0033] Figure 2 This is a cross-sectional view of an antifreeze ultraviolet sterilization module provided in an embodiment of the present invention;

[0034] Figure 3 This is another cross-sectional view of an antifreeze ultraviolet sterilization module provided in an embodiment of the present invention;

[0035] Figure 4 This is another cross-sectional view of an antifreeze ultraviolet sterilization module provided in an embodiment of the present invention;

[0036] Figure 5 This is a fourth cross-sectional view of an antifreeze ultraviolet sterilization module provided in an embodiment of the present invention;

[0037] Figure 6 This is provided by an embodiment of the present invention. Figure 5 An enlarged schematic diagram of part A in the middle;

[0038] Figure 7 This is a block diagram illustrating an electronic device 1300 according to an exemplary embodiment.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Sterilization module main body; 11. Transparent tube; 12. Shell; 121. Ultraviolet generator; 13. Connector assembly; 131. First connector; 132. Second connector; 2. Temperature control system; 21. Temperature sensor; 22. Heating film; 221. Mounting notch; 23. Controller; 24. Reflective layer. Detailed Implementation

[0041] 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. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention and are not intended to limit the present invention. In the present invention, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0042] Ultraviolet (UV) sterilization technology has been widely used in water treatment, medical equipment, food processing, and air purification due to its advantages such as high efficiency, no chemical residue, and broad-spectrum sterilization. Ultraviolet light sterilizes microorganisms by destroying their DNA / RNA structure, thus rendering them unable to reproduce. The UV-C band (200-280nm) has the highest sterilization efficiency.

[0043] In low-temperature environments (such as <5℃), fluids are prone to freezing in pipelines, causing reduced flow or even blockage, which seriously affects system reliability.

[0044] Some existing modules use heat insulation materials or increase pipe diameter to delay icing, but this cannot fundamentally solve the problem of reduced sterilization efficiency of low-temperature fluids.

[0045] Please see Figures 1 to 2 As shown, Figure 1 This is a schematic diagram of a structure of an antifreeze ultraviolet sterilization module provided in an embodiment of the present invention. Figure 2 This is a cross-sectional view of an antifreeze ultraviolet sterilization module provided by an embodiment of the present invention. In a first aspect, an embodiment of the present invention provides an antifreeze ultraviolet sterilization module, the module comprising:

[0046] The sterilization module body 1 includes a transparent tube 11, a shell 12, and a connector assembly 13. A through cavity is formed inside the shell 12. The transparent tube 11 is disposed inside the cavity. The connector assembly 13 is disposed at both ends of the transparent tube 11 and is used to fix and connect the shell 12. An ultraviolet generator 121 is disposed inside the shell 12. The ultraviolet generator 121 is disposed outside the transparent tube 11 and is configured to emit ultraviolet light into the transparent tube 11.

[0047] Temperature control system 2 includes temperature sensor 21, heating film 22 and controller 23. Temperature sensor 21 is disposed inside housing 12, heating film 22 is disposed on inner wall of housing 12, and controller 23 is electrically connected to temperature sensor 21 and heating film 22 respectively, so that controller 23 controls heating film 22 to open and close according to temperature inside housing 12.

[0048] The ultraviolet generator 121 consists of multiple independent control zones, each operating at a different power. The operating power of the area of ​​the ultraviolet generator 121 closer to the connector assembly 13 is higher than that of the area of ​​the ultraviolet generator 121 farther from the connector assembly 13.

[0049] It is understandable that the transparent tube 11 can be made of quartz material, and the transparent tube 11 is nested with the shell 12: this ensures UV transmittance while also providing physical protection through the shell 12.

[0050] For example, the temperature sensor 21 can be a PT100 or NTC thermistor, and should be close to the outer wall of the transparent tube 11 to directly monitor the equivalent temperature of the fluid and avoid control lag caused by the thermal inertia of the housing 12.

[0051] It is understandable that multiple temperature sensors 21 can be set at different locations, and then the average value can be obtained by combining the algorithm, which can prevent false triggering of the control of the heating film 22.

[0052] Furthermore, the temperature sensor 21 can be positioned away from the ultraviolet generator 121 and the heating film 22 to avoid affecting the accuracy of the temperature data acquired by the temperature sensor 21.

[0053] It is understood that the material of the heating film 22 includes, but is not limited to, a flexible silicone heating film 22 (temperature resistant above 200℃), which adheres to the inner wall of the housing 12 to achieve uniform heating. The specific power density needs to be calculated based on the fluid flow rate and target temperature (e.g., 50-200W / m²).

[0054] Specifically, the controller 23 includes: a signal conversion unit for converting temperature signals into digital temperature values; a comparison unit for comparing digital temperature values ​​with preset thresholds; and a drive unit for outputting PWM signals to the heating film 22 based on the comparison results.

[0055] Furthermore, the heating film 22 can also prevent the accumulation of condensed water vapor from affecting optical performance and extend the life of the sterilization module.

[0056] It is understood that the ultraviolet generator 121 includes, but is not limited to, a UVC LED, and the ultraviolet generator 121 includes, but is not limited to, one.

[0057] It should be noted that the application environment of this application is not limited to online sterilization of drinking water pipelines, but can also be used for online sterilization of pharmaceutical and food processing pipelines.

[0058] The beneficial effects of this application are as follows: The antifreeze ultraviolet sterilization module is equipped with a heating film 22 and a temperature sensor 21 outside the transparent tube 11. The operation of the heating film 22 is controlled according to the temperature value outside the transparent tube 11 detected by the temperature sensor 21, which ensures that the ultraviolet sterilization module operates under ideal working conditions and effectively solves the problem of ultraviolet sterilization module failure caused by the freezing of fluid inside the ultraviolet sterilization module in low temperature environment.

[0059] In this embodiment, the temperature sensor 21 is electrically connected to the ultraviolet generator 121 so that the temperature sensor 21 controls the ultraviolet generator 121 to turn on and off according to the temperature inside the housing 12.

[0060] It is understandable that by directly connecting the temperature sensor 21 to the ultraviolet generator 121, the ultraviolet generator 121 can be linked to control the ultraviolet generator 121 to heat and thaw the sterilization module, in addition to the existing control of the heating film 22 to thaw the heating sterilization module. This not only allows the heating film 22 to heat the transparent tube 11, but also allows the ultraviolet generator 121 to heat the transparent tube 11, further solving the risk of ultraviolet sterilization module equipment failure caused by low temperature environment.

[0061] It is understandable that the heating film 22 can be controlled to thaw the sterilization module first. Once the temperature rises to a suitable range, the ultraviolet generator 121 can be used to thaw the module and sterilize the fluid at the same time. In extreme cases, the heating film 22 and the ultraviolet generator 121 can be turned on at the same time to thaw the sterilization module.

[0062] In this embodiment of the application, the connector assembly 13 includes a first connector 131 and a second connector 132. The first connector 131 is disposed at one end of the transparent tube 11 and is configured to connect the fluid pipe fitting. The outer side of the first connector 131 is connected to the first end of the housing 12.

[0063] The second connector 132 is located at the other end of the transparent tube 11 and is configured to connect the fluid fitting. The outer side of the second connector 132 is connected to the second end of the housing 12.

[0064] In this embodiment, the transparent tube 11 and the shell 12 are fixed together by the first connector 131 and the second connector 132 to form a fixed water purification module, so that it can be connected to the fluid pipe through the first connector 131 and the second connector 132 to perform ultraviolet sterilization on the fluid.

[0065] In this embodiment, the heating film 22 can also be composed of multiple independent control areas, each of which operates at a different power. The operating power of the area of ​​the heating film 22 near the connector assembly 13 is higher than the operating power of the area of ​​the ultraviolet generator 121 far from the connector assembly 13.

[0066] It is understandable that, due to the high thermal conductivity of the metal connector assembly 13 (such as a stainless steel flange), it dissipates heat rapidly in low-temperature environments, causing a sudden drop in the temperature of the contact surface. The connection between the connector assembly 13 and the pipe, as well as the connection with the transparent pipe 11, is most prone to freezing. Therefore, the outer casing of the metal connector assembly 13 can be made of a material that is not easily conductive to heat. The connector shell 12 made of a material that is not easily conductive to heat heat can reduce the efficiency of freezing of the inner wall of the connector assembly 13. The metal connector assembly 13 with easily conductive inner side can conduct the heat of the air heated inside the sterilization module to the metal connector assembly 13 to heat and thaw the inner side of the connector assembly 13.

[0067] Secondly, the sealing ring groove or thread gap inside the connector assembly 13 is prone to forming a stagnant water zone, which hinders flow and accelerates icing. Therefore, the heating film 22 near the connector assembly 13 can be set as a high-power heating film 22, and the heating film 22 near the middle of the transparent tube 11 can be set as a low-power heating film 22, thereby achieving the effect of energy saving.

[0068] Furthermore, the heating film 22 can be zoned for temperature control in different areas, and combined with multiple temperature sensors 21 distributed on the inner wall of the housing 12, it can achieve enhanced temperature control and thawing of the transparent tube in different areas.

[0069] See Figure 3 and Figure 4 As shown, Figure 3 This is another cross-sectional view of an antifreeze ultraviolet sterilization module provided in an embodiment of the present invention. Figure 4This is another cross-sectional view of an antifreeze ultraviolet sterilization module provided in an embodiment of the present invention. In this embodiment, the ultraviolet generator 121 abuts against the housing 12, and the heating film 22 has a pre-reserved mounting notch 221, which faces the ultraviolet generator 121 so that when the temperature is higher than the threshold, the ultraviolet generator 121 can dissipate heat through the housing 12.

[0070] It is understood that there are two installation methods for the ultraviolet generator 121 to abut against the housing 12. The first installation method is that the ultraviolet generator 121 is embedded in the inner wall of the housing 12. The second installation method is that the ultraviolet generator 121 is set in the inner wall of the housing 12, but the ultraviolet generator 121 passes through the installation notch 221 and is located inside the heating film 22. Both methods can achieve heating of the inner side of the heating film 22, and at the same time, heat dissipation can be achieved through the housing 12 when the temperature is high.

[0071] This application provides an installation notch 221 on the heating film 22 that faces the ultraviolet generator 121. This ensures that the heating film 22 can heat the fluid inside the transparent tube 11 at low temperatures, and that the ultraviolet generator 121 can pass through the installation notch to sterilize the transparent tube 11 at normal temperatures. At the same time, when the temperature is too high, the housing 12 dissipates heat from the ultraviolet generator 121, thereby improving the heat dissipation effect of the ultraviolet generator 121.

[0072] See Figure 5 and Figure 6 As shown, Figure 5 This is a fourth cross-sectional view of an antifreeze ultraviolet sterilization module provided in an embodiment of the present invention. Figure 6 This is provided by an embodiment of the present invention. Figure 5 An enlarged schematic diagram of part A in this application. In some embodiments, a heat insulation layer is provided on the outer side of the heating film 22.

[0073] It is understood that the heat insulation layer includes, but is not limited to, aerogel felt. It is understood that a heat insulation layer is added to the outside of the shell 12 to reduce heat loss. Furthermore, the heat insulation layer can be fixedly installed on the outer layer of the heating film 22 or fixedly installed on the inner side of the shell 12.

[0074] In this embodiment of the application, a reflective layer 24 is also included. The reflective layer 24 is disposed between the heating film 22 and the transparent tube 11. The reflective layer 24 is made of a material with high thermal conductivity, and / or;

[0075] A reflective layer 24 is disposed between the housing 12 and the heating film 22, the heating film 22 being a mesh-like film layer, and / or;

[0076] A reflective layer 24 is disposed between the housing 12 and the heating film 22, which is a transparent ceramic material heating film 22.

[0077] It is understood that the reflective layer 24 is disposed between the heating film 22 and the transparent tube 11, and the reflective layer 24 is made of a material with high thermal conductivity, which enables the ultraviolet rays emitted by the ultraviolet generator 121 to sterilize the fluid through multiple reflections, reduce light attenuation, and enable the heat energy emitted by the heating film to be well transferred to the fluid, reducing heat loss.

[0078] Secondly, the same effect can be achieved by setting the length of the heating film 22 to be longer than the reflective layer 24, so that the heating film 22 is exposed to the reflective layer 24 and directly heats the transparent tube 11.

[0079] It is understood that the reflective layer 24 is disposed between the housing 12 and the heating film 22. The heating film 22 is a mesh-like film layer, which enables the ultraviolet light emitted by the ultraviolet generator 121 to sterilize the fluid through multiple reflections, reduce light attenuation, and enable the heat energy emitted by the heating film 22 to be directly transferred to the fluid. At the same time, it isolates the housing 12 and the heating film 22 to reduce heat loss.

[0080] It is understood that the reflective layer 24 is disposed between the housing 12 and the heating film 22. The heating film 22 is a transparent ceramic material heating film 22, which enables the ultraviolet rays emitted by the ultraviolet generator 121 to pass through the transparent ceramic material heating film 22 and sterilize the fluid through multiple reflections, reducing light attenuation. It also enables the heat energy emitted by the heating film 22 to be directly transferred to the fluid, while isolating the housing 12 and the heating film 22 to reduce heat loss.

[0081] Furthermore, a Hall effect flow sensor is installed in the inlet or connector assembly of the transparent tube 11, and the data is fused with that of the temperature sensor 21 to calculate the required equivalent heating intensity in real time.

[0082] Furthermore, fins can be provided on the inner wall of the housing 12 near the connector assembly 13 to enable rapid heat transfer to the connector assembly 13 for defrosting.

[0083] Furthermore, piezoelectric ceramic vibrators are installed at both ends of the transparent tube 11 to mechanically de-ice the inner wall of the transparent tube 11 when the liquid inside the transparent tube 11 is zero.

[0084] Secondly, this application also discloses a control method, which may include the following steps:

[0085] The temperature value and the preset first temperature range are obtained. The temperature value includes the temperature value of the transparent tube 11, the temperature value of the housing 12, or the temperature value of the connector.

[0086] If the temperature value is within the preset first temperature range, control the heating film 22 to operate.

[0087] It is understood that the controller 23 performs a self-test and reads the preset first temperature range, the temperature sensor 21 monitors the temperature value in real time and transmits the data to the controller 23, and the controller 23 compares the temperature value with the preset temperature threshold: if the temperature value is higher than the highest temperature threshold of the preset first temperature range, the system operates normally; if the temperature value is lower than the highest temperature threshold of the preset first temperature range, the controller 23 activates the heating film 22, and when the temperature value rises back to above the preset temperature threshold, the controller 23 turns off the heating film 22 and resumes normal operation.

[0088] For example, the first temperature range can be -6°C to 6°C.

[0089] When temperature sensor 21 detects that the temperature has dropped to within -6℃ to 6℃, heating film 22 can be activated. This is because when the water temperature approaches 0℃, there is a risk of freezing, which could affect the normal operation of the sterilization module. Activating heating film 22 in advance provides basic heat to prevent the water temperature from dropping further. For example, in northern outdoor environments or indoor environments without heating, the air temperature may remain in this low-temperature range for extended periods; continuous operation of heating film 22 can maintain a stable temperature within the module.

[0090] In this embodiment of the application, the method may further include the following steps:

[0091] Obtain the temperature value and the preset second temperature range, wherein the lowest value of the second temperature range is higher than or equal to the highest value of the first temperature range;

[0092] If the temperature value is within the preset second temperature range, control the operation of the ultraviolet generator 121.

[0093] It is understood that the controller 23 performs a self-test and reads the preset second temperature range, the temperature sensor 21 monitors the temperature value in real time and transmits the data to the controller 23, and the controller 23 compares the temperature value with the preset temperature threshold: if the temperature value is higher than the highest temperature threshold of the preset second temperature range, the system operates normally and the ultraviolet generator 121 only performs the sterilization function; if the temperature value is lower than the highest temperature threshold of the preset second temperature range, the controller 23 activates the heating film 22, and when the temperature value rises back to above the preset temperature threshold, the controller 23 turns off the heating film 22 and resumes normal operation.

[0094] For example, the second temperature range can be 6°C - 10°C.

[0095] When the temperature sensor 21 detects that the temperature has dropped to within 6℃-10℃, even if the water flow sensor detects that there is no water flow, the ultraviolet generator 121 can be turned on. At this time, it is not for sterilization, but to maintain the ultraviolet sterilization module at a sufficient temperature to avoid freezing.

[0096] In some embodiments of this application, the method may further include the following steps;

[0097] Obtain the temperature value and the preset temperature threshold, where the preset temperature threshold is lower than the lowest value in the first temperature range;

[0098] If the temperature value is lower than the preset temperature threshold, the heating film 22 and the ultraviolet generator 121 will operate simultaneously.

[0099] Understandably, at even lower temperatures, the heating film 22 alone may not be sufficient to quickly and effectively raise and maintain the temperature inside the module. Specifically, when the temperature sensor 21 detects that the temperature has dropped below -8°C, the heating film 22 and the ultraviolet generator 121 are activated. The ultraviolet generator 121 can generate heat while simultaneously sterilizing, thus enhancing both the heating effect and the sterilization function. For example, in extremely cold weather, where the temperature may be below -8°C, the ultraviolet generator 121 and the heating film 22 working together can better ensure the normal operation of the sterilization module in low-temperature environments.

[0100] See Figure 7 As shown, Figure 7 This is a block diagram illustrating an electronic device 1300 according to an exemplary embodiment. For example... Figure 7 As shown, the electronic device 1300 can be the aforementioned antifreeze ultraviolet sterilization module, including: a processor 1301 and a memory 1302. The electronic device 1300 may also include one or more of a multimedia component 1303, an input / output (I / O) interface 1304, and a communication component 1305.

[0101] The processor 1301 controls the overall operation of the electronic device 1300 to complete all or part of the steps in the device control method described above. The memory 1302 stores various types of data to support the operation of the electronic device 1300. This data may include, for example, instructions for any application or method operating on the electronic device 1300, and application-related data such as contact data, sent and received messages, pictures, audio, video, etc. The memory 1302 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. Multimedia component 1303 may include a screen and an audio component. The screen may be, for example, a touchscreen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in memory 1302 or transmitted via communication component 1305. The audio component also includes at least one speaker for outputting audio signals. I / O interface 1304 provides an interface between processor 1301 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual or physical buttons. Communication component 1305 is used for wired or wireless communication between the electronic device 1300 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IoT, eMTC, or other 5G technologies, or combinations thereof, is not limited here. Therefore, the corresponding communication component 1305 may include: a Wi-Fi module, a Bluetooth module, an NFC module, etc.

[0102] In an exemplary embodiment, the electronic device 1300 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the device control method described above.

[0103] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, which, when executed by a processor, implement the steps of the device control method described above. For example, the computer-readable storage medium may be the memory 1302 including program instructions, which may be executed by the processor 1301 of the electronic device 1300 to complete the device control method described above.

[0104] The embodiments of the present invention have been described in detail above. Specific examples are used in this document to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. An anti-freezing ultraviolet sterilization module, characterized in that, The application relates to a sterilization module, which comprises the following parts: a sterilization module main body (1) which comprises a transparent tube (11), a shell (12) and a joint assembly (13), a cavity is formed in the shell (12), the transparent tube (11) is arranged in the cavity, the joint assembly (13) is arranged at two ends of the transparent tube (11) and is used for fixedly connecting the shell (12), an ultraviolet light generating element (121) is arranged in the shell (12), the ultraviolet light generating element (121) is arranged outside the transparent tube (11) and is configured to emit ultraviolet light to the transparent tube (11); a temperature control system (2) which comprises a temperature sensor (21), a heating film (22) and a controller (23), the temperature sensor (21) is arranged in the shell (12), the heating film (22) is arranged on the inner wall of the shell (12), and the controller (23) is electrically connected with the temperature sensor (21) and the heating film (22) respectively, so that the controller (23) controls the heating film (22) to be turned on or turned off according to the temperature in the shell (12). The ultraviolet light generating element (121) is composed of multiple independent control areas, each area works at different power, and the working power of the area close to the joint assembly (13) is higher than that of the area far from the joint assembly (13).

2. The anti-freezing ultraviolet sterilization module according to claim 1, characterized in that, The controller (23) is electrically connected with the ultraviolet light generating element (121), so that the temperature sensor (21) controls the ultraviolet light generating element (121) to be turned on or turned off according to the temperature in the shell (12).

3. The anti-freezing ultraviolet sterilization module according to claim 2, characterized in that, The joint assembly (13) comprises a first connector (131) and a second connector (132), the first connector (131) is arranged at one end of the transparent tube (11) and is configured to be connected with a fluid pipe element, and the outer side of the first connector (131) is connected with a first end of the shell (12). The second connector (132) is arranged at the other end of the transparent tube (11) and is configured to be connected with a fluid pipe element, and the outer side of the second connector (132) is connected with a second end of the shell (12).

4. The anti-freezing and ultraviolet sterilization module according to claim 1, wherein, And / or; The heating film (22) is composed of multiple independent control areas, each area works at different power, and the working power of the area close to the joint assembly (13) is higher than that of the area far from the joint assembly (13).

5. The anti-freezing and ultraviolet sterilization module according to claim 1, wherein, The ultraviolet light generating element (121) is in abutment with the shell (12), the heating film (22) is provided with a mounting gap (221), the mounting gap (221) faces the ultraviolet light generating element (121), so that the ultraviolet light generating element (121) can be cooled through the shell (12) when the temperature is higher than a threshold value.

6. The anti-freezing and ultraviolet sterilization module according to claim 1, wherein, The outer side of the heating film (22) is provided with a heat insulation layer.

7. The anti-freezing and ultraviolet sterilization module according to claim 1, wherein, Further comprising a light-reflecting layer (24) disposed between the heating film (22) and the transparent tube (11), the light-reflecting layer (24) being made of a material with high heat conduction ability, and / or; The light-reflecting layer (24) is disposed between the shell (12) and the heating film (22), the heating film (22) being a grid-shaped film layer, and / or; The light-reflecting layer (24) is disposed between the shell (12) and the heating film (22), the heating film (22) being a transparent ceramic material heating film.

8. A method for controlling a freeze-proof ultraviolet sterilization module, applied to the freeze-proof ultraviolet sterilization module of any one of claims 1 to 7, characterized in that, Further comprising: Obtaining a temperature value and a preset first temperature interval, the temperature value including a temperature value of the transparent tube (11), a temperature value of the shell (12), or a temperature value of the joint assembly (13); If the temperature value is within the preset first temperature interval, controlling the heating film (22) to operate.

9. The control method according to claim 8, characterized by, Further comprising: Obtaining the temperature value and a preset second temperature interval, wherein the lowest value of the second temperature interval is higher than or equal to the highest value of the first temperature interval; If the temperature value is within the preset second temperature interval, controlling the ultraviolet light generating component (121) to operate.

10. The control method according to claim 9, characterized by, Further comprising: Obtaining the temperature value and a preset temperature threshold value, the preset temperature threshold value being lower than the lowest value of the first temperature interval; If the temperature value is lower than the preset temperature threshold value, controlling the heating film (22) and the ultraviolet light generating component (121) to operate simultaneously.

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