A safe intelligent ultraviolet disinfection blanket

Abstract

This invention discloses a safe and intelligent ultraviolet disinfection blanket, comprising a flexible blanket body, an ultraviolet disinfection module, a photosensitive switch module, and a control circuit. The flexible blanket body is laid between a sheet and a quilt. The ultraviolet disinfection module includes an ultraviolet light source, which is located within the flexible blanket body and is used to emit ultraviolet light onto the upper and / or lower surfaces of the flexible blanket body. This invention, through the photosensitive switch module and the enclosed blanket structure, ensures that the ultraviolet light source only operates when the quilt covers the blanket, creating a dark environment, fundamentally preventing ultraviolet light leakage and harm to the eyes and skin. A pressure detection module and an infrared human body sensor module automatically shut off the ultraviolet light source when the quilt is accidentally lifted or a person approaches, achieving multiple intelligent safety protections. By using ozone-free UV-C LED beads and an ultraviolet reflective layer, the disinfection efficiency is high and odorless. Combined with a timer and buzzer prompts, it makes bedding disinfection convenient and reliable, no longer limited by weather or location.

Description

Technical Field

[0001] This invention belongs to the field of household hygiene and disinfection appliance technology, specifically relating to a safe and intelligent ultraviolet disinfection blanket. Background Technology

[0002] Currently, the most common method for disinfecting bedding such as quilts and sheets is still sun exposure, which uses ultraviolet rays in sunlight to kill mites and bacteria. However, this traditional method is severely limited by living space (lack of balconies or courtyards), weather conditions (rainy days, smoggy days), and the fast-paced lifestyle of modern people, and cannot be carried out at any time and when needed, resulting in the hygiene of bedding often not being guaranteed in a timely and effective manner.

[0003] Although some handheld or stand-mounted ultraviolet disinfection lamps have appeared on the market, most of these products are designed with point light sources. When in use, the ultraviolet light scatters extremely strongly, which can easily shine into people's eyes and cause damage, posing a great safety hazard. At the same time, some ultraviolet light sources produce ozone when working, which emits a pungent smell that is unpleasant and can irritate the respiratory tract.

[0004] Therefore, in order to address the aforementioned technical issues, it is necessary to provide a safe and intelligent ultraviolet disinfection blanket.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a safe and intelligent ultraviolet disinfection blanket, which can solve the problems of inconvenience in disinfecting bedding such as quilts and sheets and the potential harm to the human body during the disinfection process in the existing technology.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides the following technical solution:

[0008] A safe and intelligent ultraviolet (UV) disinfection blanket includes a flexible blanket body, a UV disinfection module, a photosensor switch module, and a control circuit. The flexible blanket body is laid between a bed sheet and a quilt. The UV disinfection module includes a UV light source disposed within the flexible blanket body, used to emit UV light onto the upper and / or lower surfaces of the flexible blanket body. The photosensor switch module is installed within the flexible blanket body and used to detect ambient light intensity. The control circuit is electrically connected to both the UV disinfection module and the photosensor switch module, and is used to cut off the power supply to the UV light source when the photosensor switch module detects that the ambient light intensity exceeds a preset safety threshold.

[0009] In one or more embodiments of the present invention, the flexible blanket includes an upper layer of high-transmittance ultraviolet light fabric, a lower layer of high-transmittance ultraviolet light fabric, and a light-blocking edging. The four edges of the upper layer of high-transmittance ultraviolet light fabric and the lower layer of high-transmittance ultraviolet light fabric are connected by the light-blocking edging to jointly enclose and form a closed cavity. The ultraviolet disinfection module is disposed in the closed cavity.

[0010] In one or more embodiments of the present invention, the inner surface of the lower high-transmittance ultraviolet fabric is provided with an ultraviolet reflective layer for reflecting ultraviolet light irradiated downwards upwards.

[0011] In one or more embodiments of the present invention, the ultraviolet light source is an ozone-free UV-C LED lamp bead with an emission wavelength range of 260nm-280nm.

[0012] In one or more embodiments of the present invention, the light-sensing switch module includes at least one ambient light sensor, the ambient light sensor being disposed at the edge of the flexible blanket, and the preset safety threshold being 10 lux.

[0013] In one or more embodiments of the present invention, the control circuit includes a timing module, and a buzzer electrically connected to the timing module is provided in the flexible blanket body for issuing an audio prompt when the disinfection procedure ends.

[0014] In one or more embodiments of the present invention, a pressure detection module and an infrared human body sensing module electrically connected to the control circuit are further included. The pressure detection module is distributed on the upper surface of the flexible blanket and is used to detect whether the upper surface of the flexible blanket is covered with a quilt. The control circuit is used to control the ultraviolet light source to stop working when the pressure value detected by the pressure detection module is lower than a preset pressure threshold.

[0015] In one or more embodiments of the present invention, the infrared human body sensing module is used to detect whether there are people approaching around the flexible blanket, and the control circuit is used to control the ultraviolet light source to stop working when the infrared human body sensing module senses that people are approaching.

[0016] In one or more embodiments of the present invention, the inner surface of the flexible blanket is coated with an ozone-decomposing coating, the ozone-decomposing coating comprising manganese dioxide or activated carbon material.

[0017] In one or more embodiments of the present invention, flexible counterweight strips are inserted through the inner periphery of the flexible blanket.

[0018] Compared with existing technologies, the present invention provides a safe and intelligent ultraviolet disinfection blanket. Through a photosensitive switch module and a closed blanket structure, it ensures that the ultraviolet light source only operates when the blanket covers the blanket, creating a dark environment. This fundamentally prevents ultraviolet light leakage from harming the eyes and skin. A pressure detection module and an infrared human body sensor module automatically shut off the ultraviolet light source when the blanket is accidentally lifted or someone approaches, achieving multiple intelligent safety protections. By using ozone-free UV-C LED beads and an ultraviolet reflective layer, it achieves high disinfection efficiency and no odor. Combined with a timer and buzzer prompts, it makes bedding disinfection convenient and reliable, no longer limited by weather or location. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in 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 structural block diagram of a safe and intelligent ultraviolet disinfection blanket according to an embodiment of the present invention;

[0021] Figure 2 This is a partial structural cross-sectional view of a safe and intelligent ultraviolet disinfection blanket according to an embodiment of the present invention;

[0022] Figure 3 for Figure 2 Schematic diagram of the structure at point A in the middle;

[0023] Figure 4 This is a perspective view of a safe and intelligent ultraviolet disinfection blanket in its unfolded state according to an embodiment of the present invention;

[0024] Figure 5 This is a perspective view of the rolled-up state of a safe and intelligent ultraviolet disinfection blanket according to an embodiment of the present invention.

[0025] Explanation of key figure labels:

[0026] 1- Flexible blanket body, 101- Upper layer high-transmittance ultraviolet light fabric, 102- Lower layer high-transmittance ultraviolet light fabric, 103- Shading edging, 2- Ultraviolet light source, 3- Ambient light sensor, 4- Flexible counterweight strip. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0028] like Figures 1 to 5 As shown, a safe and intelligent ultraviolet disinfection blanket according to one embodiment of the present invention includes a flexible blanket body 1, an ultraviolet disinfection module, a photosensitive switch module, a control circuit, a pressure detection module, an infrared human body sensing module, and a buzzer. The control circuit is electrically connected to the ultraviolet disinfection module, the photosensitive switch module, the pressure detection module, the infrared human body sensing module, and the buzzer, respectively, and is used to coordinate the operation of each module and realize safety logic control.

[0029] The flexible blanket 1 is used to lay between the bed sheet and the quilt. It is rectangular and flexible, and its size can be customized according to the double bed or single bed.

[0030] Specifically, the flexible blanket 1 includes an upper layer of high-transmittance ultraviolet (UV) light fabric 101, a lower layer of high-transmittance UV light fabric 102, and a light-blocking edging 103. Both the upper layer of high-transmittance UV light fabric 101 and the lower layer of high-transmittance UV light fabric 102 are made of fabrics that can efficiently transmit UV light with wavelengths of 260nm-280nm, such as ultra-thin quartz fiber fabric or modified polytetrafluoroethylene fabric, with a UV transmittance of not less than 80%, and are soft to the touch and can be repeatedly folded.

[0031] Furthermore, the light-shielding edging 103 is made of black dense woven fabric or elastic fabric with an anti-ultraviolet coating, which firmly sews or heat-presses the edges of the upper high-transmittance ultraviolet fabric 101 and the lower high-transmittance ultraviolet fabric 102 together to form a closed cavity. In this way, the ultraviolet disinfection module is set in the closed cavity. When working, ultraviolet light can only radiate outward through the upper high-transmittance ultraviolet fabric 101 and the lower high-transmittance ultraviolet fabric 102, while the light-shielding edging 103 effectively blocks the light from leaking into the surrounding environment.

[0032] like Figures 2 to 4 As shown, the ultraviolet disinfection module includes an ultraviolet light source 2. In this embodiment, the ultraviolet light source 2 uses ozone-free UV-C LED beads with a peak emission wavelength around 270nm, which can efficiently destroy the DNA / RNA structure of bacteria and viruses, and does not produce ozone during the emission process, thus avoiding the odor problem of traditional mercury lamp disinfection.

[0033] Specifically, these UV-C LED beads are arranged in an array via a flexible circuit board and attached to the upper surface of the lower high-transmittance UV fabric 102 with thermally conductive adhesive, so that the UV light can be emitted simultaneously upwards and downwards, disinfecting the inner side of the quilt and the surface of the sheet on both sides.

[0034] In addition, an ultraviolet reflective layer is provided on the inner surface of the lower high-transmittance ultraviolet fabric 102. This ultraviolet reflective layer can be made of vacuum-metallized polyester film or coated with a high-reflectivity titanium dioxide coating, which can efficiently reflect the ultraviolet light incident downwards upwards, thereby greatly increasing the intensity of ultraviolet light irradiating the quilt, improving disinfection efficiency, and reducing energy consumption.

[0035] Meanwhile, an ozone decomposition coating is applied to the inner surfaces of the enclosed cavity, namely the lower surface of the upper high-transmittance ultraviolet fabric 101 and the upper surface of the lower high-transmittance ultraviolet fabric 102 (excluding the area covered by the LED beads). This ozone decomposition coating uses porous manganese dioxide or activated carbon as the main active ingredient, which can quickly decompose trace amounts of ozone that may be generated in the enclosed space due to material aging or high-voltage static electricity, eliminate potential odors, and ensure the user's respiratory comfort.

[0036] In other embodiments of the present invention, depending on actual needs, the ultraviolet light source 2 can be configured to emit ultraviolet light only upwards. In this case, the lower high-transmittance ultraviolet fabric 102 can be replaced with ordinary light-blocking fabric and the ultraviolet reflection layer can be eliminated to simplify the structure and reduce costs. The ultraviolet light source 2 may also include some UVA band LEDs to enhance specific functions such as mite removal and insect attraction.

[0037] like Figures 1 to 5 As shown, the light-sensing switch module is used to detect the ambient light intensity around the blanket, and it includes at least one ambient light sensor 3.

[0038] In this embodiment, there are four ambient light sensors 3, which are sewn into the small interlayer pockets on the outside of the light-shielding edges 103 at the four corners of the flexible blanket 1, with the probes facing outwards so that they can truly sense the external ambient light without being interfered with by the ultraviolet light inside the flexible blanket 1.

[0039] Specifically, the preset safety threshold is set to 10 lux, which corresponds to a dark or near-dark environment. When any ambient light sensor 3 detects that the ambient light intensity is higher than 10 lux, it is determined that the disinfection blanket is not fully covered by the quilt or the quilt has been lifted during use. At this time, the control circuit immediately cuts off the power supply circuit of the ultraviolet light source 2, achieving a microsecond-level rapid shutdown to ensure no ultraviolet light leakage.

[0040] like Figure 1 As shown, the disinfection mat is also equipped with a pressure detection module and an infrared human body sensing module.

[0041] The pressure detection module includes multiple flexible thin-film pressure sensors, which are evenly distributed on the outer surface of the upper high-transmittance ultraviolet fabric 101 or in its inner lining thin layer, and are connected to the control circuit via thin-film cables.

[0042] When the user lays the blanket normally on top of the disinfection mat, the weight of the blanket itself acts on the pressure sensor, causing the sensed pressure value to rise and exceed a preset pressure threshold. This preset pressure threshold can be calibrated for the weight of a typical thin blanket, for example, set as the pressure value corresponding to a uniform distribution of 500g. The control circuit only allows the ultraviolet light source 2 to start when the detected pressure value is higher than the threshold; if the pressure value drops below the threshold during the disinfection process, the ultraviolet light source 2 is immediately turned off.

[0043] In addition, the infrared human body sensing module uses a small passive infrared sensor, which is installed on the side or corner of the flexible blanket 1, with its Fresnel lens detection window facing the surrounding environment outside the bed.

[0044] When the infrared sensor detects human movement or approach, it outputs a high-level signal. The control circuit will also force the ultraviolet light source 2 to shut down and remain off until the person leaves and the restart conditions are met again.

[0045] In this embodiment, the control circuit includes a microcontroller, a timing module, an LED driver circuit, and a power management unit. The entire control circuit board is encapsulated in a small waterproof box, which is sewn or glued to the outside of the light-shielding edge 103, or placed in a corner of the blanket and led out through a braided tube to achieve reliable fixation to the flexible blanket 1.

[0046] Specifically, the disinfection mat is powered by an external DC power adapter (e.g., 12V / 2A), which then supplies power to the LED driver circuit and various sensors after being stepped down and regulated by the power management unit. The timer module allows users to set the disinfection duration, such as 15 minutes, 30 minutes, and 60 minutes, via buttons on the control box or a wireless remote control.

[0047] After the disinfection program is started, the microcontroller begins a countdown and controls a buzzer to emit a beeping sound as an audio prompt when disinfection is complete. The buzzer is installed inside the control circuit box, and a sound-permeable micro-hole is made at the corresponding position on the light-shielding edge 103.

[0048] In addition, the control circuit board can be equipped with working status indicator lights, such as power indicator, disinfection indicator and fault alarm indicator, so that users can understand the status of the equipment at any time.

[0049] Furthermore, to ensure the disinfection blanket spreads out smoothly and flat, preventing it from shifting or curling due to movement or rolling, flexible weight strips 4 are threaded through the inner edges of the flexible blanket body 1. These flexible weight strips 4 can be silicone round strips, woven tubes filled with metal particles, or fabric strips wrapped with fine sand. They encircle the blanket body and are placed in the channels inside the light-blocking edging 103, secured with stitching. The uniform downward pressure provided by the flexible weight strips 4 ensures the blanket fits tightly against the bed sheet on all four sides, while maintaining the overall flexibility of the blanket body, making it easy to fold and store.

[0050] To use, lay the UV disinfection blanket flat on the mattress sheet, ensuring the top layer of high-transmittance UV fabric (101) is facing upwards, and flatten the four corners. Then, lay the quilt flat on top of the disinfection blanket, allowing the quilt to hang naturally around the edges.

[0051] Connect the power supply and turn on the switch. Set the desired disinfection time using the buttons on the control box or the remote control and press the start button. At this time, the control circuit first performs a self-check: the ambient light sensor 3 must detect a light intensity below 10 lux, the pressure detection module must confirm the pressure value is above the set threshold, and the infrared human body sensor module should not detect any personnel approaching. If all safety conditions are met, the microcontroller controls the LED driver circuit to illuminate the ultraviolet light source 2, entering the disinfection state. If any condition is not met, the ultraviolet light source remains off, and an indicator light reminds the user to check the blanket coverage.

[0052] During the disinfection process, the microcontroller continuously monitors the status of each sensor multiple times per second. Once it detects that the blanket has been lifted (due to a sudden increase in ambient light intensity or a sudden drop in pressure) or that a human body is approaching, the ultraviolet light source 2 will be turned off within milliseconds to ensure that the user is not exposed to ultraviolet radiation.

[0053] Once the preset disinfection time is reached, the ultraviolet light source 2 automatically shuts off, and a buzzer sounds a warning, indicating the completion of the disinfection process. During disinfection, because the quilt itself has a strong ability to block and absorb ultraviolet light, almost all the ultraviolet light is confined inside the quilt. Combined with the light-blocking edging 103 on all four sides of the quilt, extremely high light-sealing is achieved, thus allowing for safe disinfection even when someone is resting or active in the room, without being restricted by space or rest schedules.

[0054] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0055] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0056] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0057] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0058] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A safe and intelligent ultraviolet disinfection blanket, characterized in that, include: Flexible blankets are used to be laid between bed sheets and comforters; The ultraviolet disinfection module includes an ultraviolet light source, which is disposed within the flexible blanket and is used to emit ultraviolet light onto the upper and / or lower surfaces of the flexible blanket. A light-sensing switch module is installed inside the flexible blanket to detect ambient light intensity; The control circuit is electrically connected to the ultraviolet disinfection module and the photosensitive switch module respectively, and is used to cut off the power supply to the ultraviolet light source when the photosensitive switch module detects that the ambient light intensity is higher than a preset safety threshold.

2. A safety smart UV disinfectant blanket as claimed in claim 1, wherein, The flexible blanket includes an upper layer of high-transmittance ultraviolet fabric, a lower layer of high-transmittance ultraviolet fabric, and a light-blocking edging. The four edges of the upper and lower layers of high-transmittance ultraviolet fabric are connected by the light-blocking edging to form a closed cavity. The ultraviolet disinfection module is located inside the closed cavity.

3. A safety smart UV sanitizing blanket as claimed in claim 2, wherein, The inner surface of the lower layer of high-transmittance ultraviolet fabric is provided with an ultraviolet reflective layer, which is used to reflect ultraviolet light shining downwards upwards.

4. The safety smart ultraviolet disinfectant blanket of claim 1, wherein, The ultraviolet light source is an ozone-free UV-C LED lamp bead with an emission wavelength range of 260nm-280nm.

5. The safety smart ultraviolet disinfectant blanket of claim 1, wherein, The light-sensing switch module includes at least one ambient light sensor, which is located at the edge of the flexible blanket. The preset safety threshold is 10 lux.

6. A safety smart ultraviolet disinfectant blanket as claimed in claim 1, wherein, The control circuit includes a timing module, and a buzzer electrically connected to the timing module is provided inside the flexible blanket to issue an audio prompt when the disinfection process ends.

7. The safe and intelligent ultraviolet disinfection blanket according to claim 1, characterized in that, It also includes a pressure detection module and an infrared human body sensing module electrically connected to the control circuit. The pressure detection module is distributed on the upper surface of the flexible blanket and is used to detect whether the upper surface of the flexible blanket is covered with a quilt. The control circuit is used to control the ultraviolet light source to stop working when the pressure value detected by the pressure detection module is lower than a preset pressure threshold.

8. A safety smart ultraviolet disinfectant blanket as claimed in claim 7, wherein, The infrared human body sensing module is used to detect whether there are people approaching the flexible blanket, and the control circuit is used to control the ultraviolet light source to stop working when the infrared human body sensing module detects that people are approaching.

9. The safety smart ultraviolet disinfectant blanket of claim 1, wherein, The inner surface of the flexible blanket is coated with an ozone decomposition coating, which includes manganese dioxide or activated carbon material.

10. The safety smart ultraviolet disinfectant blanket of claim 1, wherein, Flexible counterweight strips are inserted into the inner edges of the four sides of the flexible blanket.

Images