CN206979277U - Ultraviolet sterilization cup - Google Patents

Abstract

The utility model provides an ultraviolet sterilized water cup, which comprises a cup cover and a cup body. There is a cavity inside the lid, inside the cavity is equipped with a deep ultraviolet LED lamp, a temperature sensor, a lid switch, a power supply and a control module; the temperature sensor is installed near the deep ultraviolet LED lamp, and the lid switch and power supply are respectively connected to In the control module, the cup lid switch can sense the closing and separating state of the cup lid and the cup body. The cup lid switch is connected to the deep ultraviolet LED lamp through the sterilization switch, and the power supply is connected to the deep ultraviolet LED lamp. The deep ultraviolet LED of the utility model is embedded inside the cup cover, has a large divergence angle, and can simultaneously sterilize the cup cover and the water body in the cup body. At the same time, the switch controls the on-off of the entire circuit. When the lid and the cup body are completely closed, the ultraviolet sterilization function can be turned on. When the lid and the cup body are separated, the entire circuit is open, and the deep ultraviolet LED will not be able to be turned on, which can effectively avoid using Or the injury caused by turning on the UV LED lamp by mistake.

Description

UV sterilized water cup

technical field

The utility model relates to a sterilization and disinfection device, in particular to an ultraviolet sterilizing water cup, which can be used for daily drinking water disinfection, children's drinking water disinfection and outdoor water body disinfection.

Background technique

Deep ultraviolet light refers to ultraviolet light with a wavelength shorter than 300nm. The Swedish Finsen discovered the sterilizing ability of deep ultraviolet rays and won the Nobel Prize in Physiology and Medicine in 1903. After the genetic material DNA or RNA of pathogenic bacteria absorbs ultraviolet light, the ultraviolet light destroys one or several chemical bonds in the nucleic acid molecule, causing the decomposition or denaturation of the nucleic acid or nucleoprotein, causing it to lose its normal function, resulting in the death or mutation of bacteria and viruses. In addition, ultraviolet radiation can also affect the activity of many enzymes in bacteria and viruses, change the structure and function of protein molecules, affect the metabolism and synthesis of proteins and nucleic acids, and weaken the toxicity of bacteria or viruses, or even die.

Traditional deep ultraviolet sterilization methods often use mercury lamps, which use mercury lamps to sterilize at the 253.7nm spectral line radiation, and have been widely used in water treatment plants, hospitals and other places. However, mercury lamps have a poor lifespan, are easily damaged and leak mercury, and cannot be used in food-grade products.

In recent years, deep ultraviolet semiconductor light-emitting devices have gradually matured: in 2003, the US SETi company developed an AlGaN-based deep ultraviolet LED with a wavelength of 280nm. On October 24, 2014, Hiroshi Amano, one of the winners of the Nobel Prize in Physics, introduced his ongoing research at a press conference, including deep ultraviolet LEDs with a wavelength of about 250-350nm. After more than 10 years of research and development, the external quantum efficiency of deep ultraviolet LEDs below 280nm has exceeded 5%, and the corresponding luminous power is greater than 5mW. Compared with mercury lamps, this semiconductor light-emitting device is easy to install and has good safety: the working voltage is about 5-7V, the size is only a few millimeters, no preheating is required, the life span is more than 10,000 hours, and the impact durability is strong. No mercury is used, safe and pollution-free. At present, deep ultraviolet LED has gradually become the mainstream sterilization method. Compared with mercury lamps, deep ultraviolet LED chips have the advantages of non-toxicity, no residue, no peculiar smell, no secondary pollution, and high efficiency.

Studies have shown that direct exposure to ultraviolet rays can cause a certain degree of damage to human eyes and skin. Excessive exposure to the eyes can cause cataracts, and long-term exposure to the skin is also prone to erythema, skin melanoma, and skin cancer. Temperature is an important factor affecting the performance of deep ultraviolet LEDs. Excessively high temperature will cause permanent damage to the LED. Working at high temperature will shorten the life of the LED and cause light decay, reduce its luminous efficiency, and affect its sterilization effect.

Unclean drinking water equipment, water pollution and bad drinking habits have a great impact on children's health. According to the data of the World Health Organization, 80% of children's diseases are related to poor drinking water quality. To ensure that children's drinking water is safe and clean is to avoid The key to disease. At the same time, for outdoor sports enthusiasts, the outdoor water quality cannot be guaranteed, which also brings safety hazards to outdoor adventures. Therefore, it is necessary to apply deep ultraviolet LED sterilization technology to common drinking activities to form a sterilized water cup suitable for children and adults.

Contents of the invention

The purpose of the utility model is to provide an ultraviolet sterilizing water cup, which can safely, efficiently and thoroughly sterilize the water body and the cup cover in the water cup in a short time, and at the same time guarantee the life of the ultraviolet LED.

The technical scheme that the utility model adopts for realizing the above object is:

The ultraviolet sterilized water cup includes a cup cover and a cup body. There is a cavity inside the cup cover, and a deep ultraviolet LED lamp, a temperature sensor, a cup cover switch, a power supply and a control module are arranged inside the cavity; the temperature sensor is installed in the deep Near the ultraviolet LED lamp, the lid switch and the power supply are respectively connected to the control module. The lid switch can sense the closing and separating state of the lid and the cup body. The lid switch is connected to the deep ultraviolet LED lamp through the sterilization switch. The power supply is connected with a deep ultraviolet LED lamp.

Further, the peak wavelength of the emission band of the deep ultraviolet LED lamp is shorter than 300nm.

Further, the temperature sensor is installed on the side or back of the deep ultraviolet LED lamp.

Further, a protection window is provided in front of the deep ultraviolet LED lamp, which is installed at the bottom of the cup cover. The material of the protective window is ultraviolet fused silica. There is a sealing rubber ring on the edge of the protection window.

Further, a communication module is also provided in the cavity, and the communication module is connected with the control module.

Preferably, the cup lid switch adopts a mechanical limit switch, a photosensitive switch, a photoelectric coupler, a pressure switch or a magnetic field sensor.

The power supply is built in the cup lid. Preferably, the power supply is a rechargeable power supply.

Further, a display module is provided on the cup cover, and the display module is connected with the control module. Preferably, the display module is an LED lamp, an LED dot matrix screen, an OLED display, an AMOLED display or a liquid crystal display.

Further, an optical lens is arranged in front of the deep ultraviolet LED lamp.

One or more deep ultraviolet LED lamps can be used.

Further, the inner wall of the cup is made of a material with high ultraviolet reflectance or high scattering rate.

The beneficial effects of the utility model:

(1) Ultraviolet sterilized water cups are sterilized by deep ultraviolet LED lamps. Since the deep ultraviolet LED lamp does not contain mercury, there is no need to worry about heavy metal pollution.

(2) The deep ultraviolet LED is embedded inside the cup cover, and the divergence angle is relatively large, which can simultaneously disinfect the cup cover and the water in the cup body.

(3) The cup cover is equipped with a control switch, and the control switch is linked with the deep ultraviolet LED. When the lid is tightened, the lid circuit will be connected, and the deep ultraviolet LED will be turned on for sterilization. When the lid is unscrewed, the lid circuit is disconnected and the deep ultraviolet LED goes out. Its structural design is ingenious, and it can well control the lighting or extinguishing of the deep ultraviolet LED, which avoids the danger caused by the naked eye misidentifying the deep ultraviolet LED in the cup lid.

(4) When the temperature sensor detects that the temperature is higher than the set temperature value, the power supply will stop supplying power to the deep ultraviolet LED lamp, thereby protecting the service life of the deep ultraviolet LED lamp.

Description of drawings

Figure 1 is a schematic diagram of a right side view of an ultraviolet sterilized water cup, 1-cup cover, 2-cup body, 3-sterilization switch, 4-sterilization indicator light, 5-power indicator light;

Fig. 2 is a schematic left view of the ultraviolet sterilized water cup, 6-charging interface;

Fig. 3 is a top view schematic diagram of the lid structure of the ultraviolet sterilized water cup, 7-deep ultraviolet LED lamp, 8-control switch, 9-waterproof rubber pad, 10-circuit board and power supply (internal), 11-temperature sensor;

Fig. 4 is a schematic diagram of a circuit module;

Fig. 5 is the relationship curve of LED light emitting power percentage and temperature;

Fig. 6 is a comparison diagram of light path of LED lamp (a) with quartz lens and (b) without quartz lens, 12-protection window, 13-lens.

detailed description

As shown in Fig. 1, Fig. 2 and Fig. 3, a kind of ultraviolet sterilized water cup of the present invention includes two parts of a cup cover 1 and a cup body 2, and the cavity of the cup cover 1 includes one or more deep ultraviolet LEDs Lamp 7, temperature sensor 11, control switch 8, waterproof rubber pad 9, cup cover 1 outside includes a charging interface 6 (with power supply inside), sterilizing switch 3, sterilizing indicator light 4, power indicator light 5. The power supply is connected with the control switch 8 and the deep ultraviolet LED lamp 7. When the switch detects that the lid and the cup body are closed, the power supply supplies power to the deep ultraviolet LED, and the deep ultraviolet LED lamp 7 starts to sterilize the water body in the cup and the cup lid 1.

Fig. 4 shows the design of the circuit module in the cup cover 1, the circuit module includes a main chip MCU, a sterilization module, a communication module, a display module and a power supply module. The main chip MCU is connected with the sterilization module, the display module, the power supply module and the communication module. The main chip MCU controls the working state of the deep ultraviolet LED lamp 7 through the boost circuit, and sterilizes the cup body 2 and the cup lid 1 . The power module contains a battery, a charging circuit and a voltage stabilizing circuit. One of the batteries supplies power to the main chip MCU through the voltage stabilizing circuit, and the other supplies power to the sterilization module. The charging circuit can be connected to an external power supply to charge the battery. The communication module is connected with the main chip MCU and contains wireless communication circuits, which can be connected with personal communication terminals such as mobile phones, small PCs or watches. After the connection is completed, two-way communication can be realized with the personal communication terminals. Send sterilization, drinking water information, etc. On the other hand, the personal communication terminal can send sterilization and other instructions to the main chip MCU through the wireless communication circuit to realize wireless control of the water cup.

The temperature sensor 11 provided at the deep ultraviolet LED lamp 7 is installed on the side or back of the deep ultraviolet LED lamp 7; when the sensor detects that the temperature or humidity is higher than the set maximum value, the battery stops supplying power to the deep ultraviolet LED, thereby It can protect the deep ultraviolet LED and prolong the service life.

On the other hand, since the rise in temperature will reduce the luminous power of the LED, resulting in a decrease in its luminous efficiency, the light time for sterilization can be compensated according to the measurement result of the temperature sensor 11 to ensure the sterilization effect. Figure 5 is a curve of the luminous power of an LED lamp as a function of temperature. The luminous power is 100% at 22°C; as the temperature rises, the luminous power of the LED lamp gradually decreases, and drops to 68% at 22°C at 60°C. The temperature sensor 11 can feed back the measured temperature to the control module, and compensate the attenuation of the luminous power of the LED lamp due to the temperature rise by increasing the luminous time, so as to ensure the sterilization effect of the ultraviolet water cup.

The control switch 8 in the cup cover 1 of this embodiment is a mechanical travel switch, which controls the circuit in the entire cavity. When the cup cover 1 and the cup body 2 are tightly closed, the whole system can work. When the cup cover 1 and the cup body 2 exist When there is a gap or separation, the system will be powered off and stop working. This design makes the whole sterilization process safe and efficient, and also avoids the risk caused by the naked eyes of the user when the deep ultraviolet LED lamp 7 is turned on. Similarly, the control switch 8 in the cup lid 1 of this embodiment can also be replaced by a photoelectric switch, such as a photoelectric switch or a photoelectric pair tube, and placed at the position of the deep ultraviolet LED lamp 7, and the cup lid can be judged by measuring the light signal. 1 and the cup body 2 are tightly closed.

The position of the deep ultraviolet LED lamp 7 includes a protective window 12 made of ultraviolet fused quartz material, and has a sealing ring, which is structurally matched with the cup cover 1 to prevent water in the cup body 2 from leaking into the cup cover 1 . The protection window 12, the sealing ring, the cavity and the waterproof rubber pad 9 isolate the electronic part from the water body, ensure the safe operation of the circuit, and ensure that the water body in the cup is clean and safe. Sealing ring and waterproof rubber pad 9 adopt anti-ultraviolet aging material, prolong its service life. The ultraviolet rays emitted by the deep ultraviolet LED lamp 7 can reach the inside of the cup body 2 through the protective window 12 to sterilize the water body; at the same time, the protective window 12 can protect the deep ultraviolet LED lamp 7 from being damaged by moisture.

In the cup cover 1, the deep ultraviolet LED lamp 7 is connected with the sterilization switch 3 and the sterilization indicator light 4. When the cup cover 1 is closed, the sterilization switch 3 is turned on, the sterilization indicator light 4 glows, and the deep ultraviolet LED light 7 starts Work, enter the sterilization and disinfection mode, and the sterilization time is controlled by the main chip MCU. When the sterilization and disinfection are completed, the sterilization indicator light 4 goes out. The inner straw of the cup cover 1 uses an anti-ultraviolet aging material to prolong the service life of the cup. The inner wall of the cup body 2 is made of a material or coating with high ultraviolet reflectance or high scattering rate, which reflects or scatters ultraviolet rays, so that the ultraviolet illumination inside the cup body has no dead angle.

The deep ultraviolet LED lamp 7 is embedded in the cup cover 1, and has a large divergence angle, which can simultaneously sterilize the water body in the cup cover 1 and the cup body 2, and can also sterilize and sterilize the internal straws, plastics and other parts. Because the water cup is in a sealed state for a long time, it is easy to breed bacteria. Disinfecting the inside of the cup can more comprehensively ensure the safety of drinking water.

There is a battery indicator light 5 on the outside of the bowl cover 1. When the water cup has insufficient power, the indicator light shows a color to remind the user to charge. After charging is completed, the indicator light shows another color to indicate that the charging is complete. The indicator light can also be a display screen, which is convenient for the user to obtain information intuitively.

There is also a rechargeable power supply inside the cup cover 1. The charging interface 6 is located outside the cup cover 1. It adopts an adsorption charging interface. The connector is exquisitely designed and fits closely with the cup body. , on the other hand makes charging easy. When the indicator light shows that the battery is insufficient, put the connector of the charging cable close to the water cup, and the charging head and the cup body interface will automatically attach to charge.

In addition, the cup cover 1 can integrate communication chips, such as bluetooth, wifi, etc., which can communicate with mobile phones, PADs, PCs, smart watches or bracelets, etc., and output the sterilization status information in the cup body; it can also be controlled remotely through the communication module Open and close the lid sterilization, and set the lid sterilization working mode.

The utility model has the advantages of ingenious design, reasonable structure and convenient use, can well control the turning on or off of ultraviolet light, and can completely complete the sterilization and disinfection of water cups in a short time. When using the product of the utility model, the cup cover 1 and the cup body 2 are tightly closed, and the sterilization switch 3 is turned on. When the sterilization is completed, the sterilization indicator light 4 goes out, and the sterilization work is completed. When the power is insufficient, the temperature indicator light 5 will prompt the user to charge, and the user will charge the sterilizing cup through the adsorption charging interface 6. After the charging is completed, the indicator light 5 will prompt to complete the charging.

More optimally, the deep ultraviolet LED lamp 7 can adopt 4 or more deep ultraviolet LEDs, and the inside of the cup body 2 can be plated as a mirror surface to increase its internal light intensity, reduce the absorption of the cup body, and improve the sterilization efficiency; at the same time A quartz lens 13 can be installed in front of the deep ultraviolet LED lamp 7, and the lens 13 can adjust the beam divergence angle or ultraviolet irradiance distribution of the deep ultraviolet LED lamp 7. As shown in Figure 6(a), compared with Figure 6(b) where the divergence angle of the light path of the deep ultraviolet LED lamp 7 without a quartz lens 13 is relatively large, the light path of the deep ultraviolet LED lamp 7 with a quartz lens 13 diverges Angle is significantly reduced. The light beam emitted by the LED is refracted and converged by the quartz lens, and the irradiation angle changes. For the cylindrical cup body of the ultraviolet sterilization cup, the ultraviolet light of the LED equipped with a quartz lens can reach the bottom and corner of the cup body to a greater extent, and strengthen the original sterilization. Ultraviolet irradiation in areas with low bacterial efficiency further improves the overall sterilization efficiency of the water cup.

The above description is only an embodiment of the present utility model, and all equal changes and modifications made according to the claims of the present utility model shall fall within the scope of the claims of the present utility model.

Claims (15)

1. ultraviolet sterilization cup, including cup lid and cup, it is characterised in that be provided with a cavity in cup lid, inside cavity is provided with Deep ultraviolet LED, temperature sensor, cup lid switch, power supply and control module；Wherein, temperature sensor is arranged on deep ultraviolet Near LED, cup lid switch and power supply are connected respectively to control module, and the cup lid switch can perceive closing for cup lid and cup body Close and the state of separation, cup lid switch are connected by sterilizing switch with deep ultraviolet LED, the power supply and deep ultraviolet LED phase Even.

2. ultraviolet sterilization cup according to claim 1, it is characterised in that the peak of the deep ultraviolet LED luminescence band Value wavelength is shorter than 300nm.

3. ultraviolet sterilization cup according to claim 1, it is characterised in that the temperature sensor is arranged on deep ultraviolet The side or the back side of LED.

4. ultraviolet sterilization cup according to claim 1, it is characterised in that protection window is provided with before the deep ultraviolet LED Mouthful, it is installed on cup lid bottom.

5. ultraviolet sterilization cup according to claim 4, it is characterised in that the material of the protecting window is ultraviolet molten stone English.

6. ultraviolet sterilization cup according to claim 4, it is characterised in that there is fluid sealant at the edge of the protecting window Circle.

7. ultraviolet sterilization cup according to claim 1, it is characterised in that be additionally provided with communication module in the cavity, lead to Letter module is connected with the control module.

8. ultraviolet sterilization cup according to claim 1, it is characterised in that the cup lid switch is opened using mechanical trip Pass, photosensitive switch, photoelectric tube, pressure switch or magnetic field sensor.

9. ultraviolet sterilization cup according to claim 1, it is characterised in that the on-chip power is in cup lid.

10. ultraviolet sterilization cup according to claim 9, it is characterised in that the power supply is rechargeable type power supply.

11. ultraviolet sterilization cup according to claim 1, it is characterised in that be additionally provided with display module on the cup lid, show Show that module is connected with the control module.

12. ultraviolet sterilization cup according to claim 11, it is characterised in that the display module is LED, LED points Battle array screen, OLED display screen, AMOLED display screens or LCDs.

13. ultraviolet sterilization cup according to claim 1, it is characterised in that optics is provided with before the deep ultraviolet LED Camera lens.

14. ultraviolet sterilization cup according to claim 1, it is characterised in that the deep ultraviolet LED uses one or more .

15. ultraviolet sterilization cup according to claim 1, it is characterised in that the cup inwall is ultraviolet high reflectance Or the material of high scattered power.