Hygienic product replacement prompting system and sanitary towel

Abstract

The utility model relates to a hygienic product replacement prompting system and a sanitary towel. The hygienic product replacement prompting system comprises a friction power generation device, a microcontroller, a timer and a signal transceiver which are sequentially connected in series and form a loop. The friction power generation device comprises a positive friction layer, a negative friction layer and an electric insulation layer arranged between the positive friction layer and the negative friction layer; the electric insulation layer is of a hollow structure, and the positive friction layer and the negative friction layer can penetrate through the electric insulation layer to be in contact friction with each other to generate current; the timer is used for timing, and when the timing duration of the timer reaches a preset duration, the microcontroller controls the signal transceiver to send a prompt signal to an external terminal. The hygienic product replacement prompting system and the sanitary towel are ingenious in design, simple in structure, convenient to use and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of hygiene products, and in particular to a hygiene product replacement reminder system and a sanitary napkin. Background Technology

[0002] Sanitary napkins are hygiene products used by women during menstruation. They are primarily made of cotton, non-woven fabric, pulp, or polymers and polymer composite paper formed from these materials. Current improvements to various hygiene products focus on comfort and enhanced liquid absorption, neglecting several important considerations for women's hygiene during menstruation. For example, sanitary napkins need to be changed regularly. If they are not changed for an extended period, menstrual blood mixes with the napkin, easily leading to bacterial growth and potentially causing discomfort such as itchy and red skin, unpleasant odor, and even vulvitis, vaginitis, and other gynecological inflammations, increasing the risk of urinary tract infections. Therefore, to maintain personal hygiene and health, it is recommended to change sanitary napkins every 2-4 hours. However, in busy work or study situations, women may forget to change their sanitary napkins. Utility Model Content

[0003] Based on this, the purpose of this utility model is to provide a sanitary product replacement reminder system and sanitary napkin to solve the hygiene problems caused by women forgetting to change sanitary napkins in time during menstruation. This utility model has an ingenious design, simple structure, is easy to use, and is highly practical.

[0004] A sanitary product replacement reminder system includes a triboelectric generator, a microcontroller, a timer, and a transceiver connected in series to form a circuit. The triboelectric generator includes a positive friction layer, a negative friction layer, and an electrically insulating layer disposed between the positive and negative friction layers. The electrically insulating layer has a hollow structure, allowing the positive and negative friction layers to pass through it and rub against each other to generate current. The timer is used for timing; when the timer reaches a preset duration, the microcontroller controls the transceiver to send a reminder signal to an external terminal.

[0005] This utility model discloses a sanitary product replacement reminder system that can be applied to sanitary products. After testing, the applicant found that when worn, human movement or slight actions cause the positive and negative friction layers of the system to bend and deform under external force, continuously contacting and separating through the hollow electrical insulation layer, thus generating current. Upon the first contact between the positive and negative friction layers, the difference in their electron-gaining and losing abilities causes them to carry positive and negative charges respectively. Upon the first separation, a potential difference is generated between them, at which point electrons flow, generating current. As the separation distance increases, an equilibrium state is gradually reached. When the distance between them gradually decreases, the positive and negative friction layers contact again, generating an opposite potential difference that causes electrons to flow in the opposite direction until a new equilibrium is reached. The repeated contact and separation of the positive and negative friction layers will produce continuous electron transfer, thereby continuously generating current. The timer's timing data is transmitted to the microcontroller, where the replacement interval is set. When the timer's timing data reaches the preset duration, the microcontroller controls the transceiver to send a reminder signal to the outside world, thus realizing the function of reminding users to change sanitary napkins. This can automatically remind users to change sanitary products regularly and avoid hygiene problems caused by prolonged use.

[0006] Furthermore, metal electrodes are attached to the outer surfaces of the positive friction layer and / or the negative friction layer. The metal electrodes facilitate the adsorption of positive and negative charges generated during the friction process of the positive and negative friction layers, and promote the flow of these charges within the closed circuit of the hygiene product replacement reminder system to form a current.

[0007] Furthermore, the hygiene product replacement reminder system also includes a capacitor connected in parallel with the triboelectric generator. When the user moves, the positive and negative friction layers generate electricity through mutual friction, and the capacitor is in a charging state; when the user is completely still, the positive and negative friction layers are relatively still, and the capacitor is in a discharging state, acting as a power source, enabling components such as the microcontroller, timer, and signal transceiver to operate normally.

[0008] Furthermore, a plurality of raised contact portions are uniformly distributed on the inner surface of the positive friction layer or the negative friction layer. The contact portions facilitate contact and friction between the positive friction layer and the negative friction layer.

[0009] Furthermore, the positive friction layer is made of conductive fibers; the negative friction layer is a composite film formed by injecting conductive material; the conductive material is 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide salt. When the positive and negative friction layers first come into contact, the difference in their electron gain / loss capabilities results in the positive friction layer being positively charged and the negative friction layer being negatively charged. When the positive and negative friction layers first separate, a negative potential difference is generated between them. At this time, electrons from the negative friction layer flow to the upper positive friction layer, generating a positive current signal. As the separation distance increases, an equilibrium state is gradually reached. When the positive and negative friction layers come into contact again, the distance between them gradually decreases, and the resulting positive potential difference causes electrons to flow from the positive friction layer to the negative friction layer, forming a negative current signal, until a new equilibrium is reached. With continuous use of the sanitary napkin, the repeated contact and separation of the positive and negative friction layers will generate continuous electron transfer, thereby continuously generating current. Composite films readily generate electricity to provide a stable power supply to the load, effectively maintaining the flexibility of the entire generator while improving dielectric properties.

[0010] Furthermore, the material of the electrical insulating layer is polyethylene terephthalate.

[0011] Furthermore, the hygiene product replacement reminder system also includes conductive fabric, which is used for the electrical connection of the triboelectric generator, the microcontroller, the timer, and the signal transceiver.

[0012] Furthermore, the conductive fabric is prepared by weaving carbon nanotube fibers with one or more of cotton, linen, wool, or chemical fibers to form carbon nanotube yarn. Conductive fabrics containing nanofiber tubes not only have excellent conductivity, but also reduce the feeling of foreign objects during use and improve comfort compared to conventional conductors.

[0013] A sanitary napkin capable of prompting replacement includes a surface layer, an absorbent core layer, a bottom layer, and a sanitary product replacement prompting system disposed between the absorbent core layer and the bottom layer.

[0014] Furthermore, the sanitary product replacement reminder system includes several triboelectric generators connected in parallel, each located at one or more positions on the front, back, left, and right sides of the sanitary napkin. The parallel arrangement of these generators near the abdomen and / or thighs and / or buttocks allows for simultaneous or individual current generation from subtle movements of the user's body, such as breathing, hip movement, or walking, ensuring continuous power generation and the timer's continuous timing function.

[0015] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the sanitary napkin that can prompt for replacement;

[0017] Figure 2 This is a cross-sectional schematic diagram of the sanitary napkin that can prompt for replacement;

[0018] Figure 3 A circuit connection diagram for the hygiene product replacement reminder system;

[0019] Figure 4 A circuit connection diagram of the hygiene product replacement reminder system equipped with capacitor 6;

[0020] Figure 5 A schematic diagram of the structure of the sanitary product replacement reminder system, which is equipped with several triboelectric power generation devices connected in parallel.

[0021] Figure 6 This is a schematic diagram of the testing method according to an embodiment of the present utility model;

[0022] Figure 7 for Figure 6 The voltage and current changes generated during the finger bending at 45° and straightening in the test method;

[0023] Figure 8 for Figure 6 The test method includes voltage and current changes during the bending and straightening of the finger. Detailed Implementation

[0024] The terminology used in the embodiments of this application is for the purpose of describing specific embodiments only and is not intended to limit the embodiments of this application. It should be understood in this application that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of the embodiments of this application.

[0025] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0026] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0029] It should be understood that the embodiments of this application are not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from their scope. The scope of the embodiments of this application is limited only by the appended claims.

[0030] like Figure 1-2 The sanitary napkin shown includes at least a surface layer 10, an absorbent core layer 20, a bottom layer 40, a sanitary product replacement reminder system 30 disposed between the absorbent core layer 20 and the bottom layer 40, and an insulating and waterproof layer 50 that encloses and seals the sanitary product replacement reminder system. Figure 3The hygiene product replacement reminder system 30 shown includes at least a triboelectric generator 31, a microcontroller 32, a timer 33, a signal transceiver 34 connected to an external device, and a conductive fabric 35 for connecting the above-mentioned electrical components, all connected in series. The triboelectric generator 31 provides power for the operation of the entire hygiene product replacement reminder system. The timer 33 has an automatic timing function. When the timer 33 reaches a preset duration, the microcontroller 32 controls the transceiver 34 to send a reminder signal to an external terminal. The microcontroller 32 can also control the start of the timer 33. The transceiver 34 connects the microcontroller 32 to an external terminal device, such as a smart device. The microcontroller 32 transmits the acquired data and information to the external terminal device in real time through the transceiver 34, realizing data transmission. At the same time, the transceiver 34 can also receive instruction signals from the external terminal device and transmit them to the microcontroller 32 for conversion and processing, thereby starting the timer 33. The external terminal device is preferably a smart device such as a mobile phone or computer, which can be connected to the microcontroller 32 via wireless communication methods such as WIFI and Bluetooth. The conductive fabric 35 of the hygiene product replacement reminder system is made by weaving carbon nanotube fibers with one or more of cotton, linen, wool, or chemical fibers into carbon nanotube yarns. The insulating and waterproof layer 50 prevents the current generated by the sanitary product replacement reminder system from flowing into the human body and causing harm; on the other hand, it prevents menstrual blood from flowing into the sanitary product replacement reminder system and causing a short circuit, thus damaging the electrical components of the sanitary product replacement reminder system.

[0031] Please see Figure 3 The triboelectric power generation device 31 adopts a vertical contact-separation working mode, including a positive friction layer 312, an electrical insulation layer 314, and a negative friction layer 316 arranged sequentially from top to bottom. The electrical insulation layer 314 has a hollow structure. The positive friction layer 312 and the negative friction layer 316 can pass through the electrical insulation layer 314 to contact and rub against each other to generate current. In this embodiment, the positive friction layer 312 and the negative friction layer 316 are both rectangular sheet structures of the same shape and size, and the electrical insulation layer 314 is a square ring-shaped hollow structure with a shape and size matching the positive friction layer 312 and the negative friction layer 316. Furthermore, raised contact portions 317 are uniformly distributed on the inner surface of the positive friction layer 312 or the negative friction layer 316, which is beneficial to the contact and friction between the positive friction layer 312 and the negative friction layer 316. The positive friction layer 312 is made of conductive fiber; the negative friction layer 316 is a composite film formed by injecting conductive material, which is 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide salt. The electrical insulating layer 314 is made of polyethylene terephthalate (PET).

[0032] As a further improvement to the above solution, a metal electrode 318 is attached to the outer surface of the positive friction layer 312 and / or the negative friction layer 316. The metal electrode 318 is preferably a thin sheet made of metal or alloy material such as copper or titanium.

[0033] Please see Figure 4 As a further improvement to the above solution, the hygiene product replacement reminder system 30 also includes a capacitor 36 connected in parallel to the triboelectric generator 31 via the conductive fabric 35; the capacitor 36 is preferably a miniature chip capacitor.

[0034] Please see Figure 5 As a further improvement to the above solution, the sanitary product replacement reminder system 30 includes a plurality of triboelectric generators 31 connected in parallel. The triboelectric generators 31 are respectively disposed at one or more of the front, back, left, and right parts of the sanitary napkin, near the abdomen and / or thighs and / or buttocks of the human body.

[0035] As a further improvement to the above solution, the sanitary product replacement reminder system also includes a sensing component for detecting relevant data about the human body and / or menstrual blood and / or the sanitary napkin environment and feeding it back to the microcontroller 32 for processing; the sensing component is connected in series with the microcontroller 32. The sensing component is one or more of a temperature sensor, a liquid flow sensor, a humidity sensor, a bacteria detection sensor, and an odor detection sensor. The temperature sensor can detect ambient temperature, user body temperature data, and sanitary napkin temperature data; the liquid flow sensor can monitor menstrual blood volume; the humidity sensor can detect the menstrual blood absorption of the sanitary napkin; the bacteria detection sensor can detect the bacterial index in the sanitary napkin; and the odor detection sensor is used to detect the presence of odor. The sensing component transmits the detection results to the microcontroller and sends them to an external terminal device via the signal transceiver to determine the user's physiological health status. Alternatively, a reference range can be set on an external terminal device and compared with the detection result. Once the detection result exceeds the reference range, an alert function will be activated to remind the user. Or, a reference range can be set on the microcontroller 32 and compared with the detection result. Once the detection result exceeds the reference range, an alert signal will be transmitted to the signal transceiver 34 and sent to the external terminal device through the signal transceiver 34.

[0036] As a further improvement to the above solution, the temperature sensor of the sensing component is used to detect the ambient temperature of the sanitary napkin and / or the user's body temperature and / or the sanitary napkin's temperature data, and transmits the detection results to the microcontroller 32. When the detection result is close to the human body temperature (e.g., greater than or equal to 35.5 degrees Celsius), the microcontroller 32 automatically controls the start of the timer 33. In this solution, the temperature sensor assists in the automatic start-up timer function that can prompt for sanitary napkin replacement.

[0037] Please see Figure 6 The specific testing method of this utility model embodiment is as follows:

[0038] 1. Prepare a sample of the triboelectric power generation device, including the following steps:

[0039] (1) Cut the prepared conductive fiber (positive friction layer 312) and conductive copper tape (metal electrode 318) into squares of the same size as 2.5cm×2.5cm;

[0040] (2) A composite film (negative friction layer 316) is attached to the top of the conductive copper tape (metal electrode 318), and the composite film (negative friction layer 316) is cut to the same size as the copper tape (metal electrode 318).

[0041] (3) A 2cm×2cm PET film with a cavity structure (electrically insulating layer 314) is attached to the surface of the composite film (negative friction layer 316), and conductive fibers (positive friction layer 312) are placed on top for integration;

[0042] (4) Seal the surrounding area with epoxy resin to obtain a sample of the triboelectric power generation device 31.

[0043] 2. Attach the sample of the triboelectric generator 31 to the joint of the index finger, gradually bend the index finger at 45° / 90° and straighten it, and test the sample output voltage and output current when the index finger is at different degrees of bending.

[0044] In this embodiment, the sample was attached to the joint of the index finger, gradually bent at 45°, and the test results of straightening the index finger are shown in the figure. Figure 7 In this embodiment, the sample was attached to the joint of the index finger, and the test results of gradually bending the index finger by 90° and straightening the index finger are shown in the figure. Figure 8 The test results show that the triboelectric generator 31 can generate current during the bending and straightening of the index finger.

[0045] When a user uses a sanitary napkin including the aforementioned sanitary napkin replacement reminder system, slight movements during the wearing process cause the positive friction layer 312 and negative friction layer 316 of the triboelectric generator 31 in the sanitary napkin replacement reminder system to come into contact with each other through the hollow electrical insulation layer 314, generating an electric current. The conductive fabric 35 transmits the current to the microcontroller 32, timer 33, and signal transceiver 34. The timer 33 starts to count automatically. When the predetermined time (e.g., 3 hours) is reached, the microcontroller 32 controls the signal transceiver 34 to send a reminder signal to an external terminal device, thereby realizing the function of reminding the user to replace the sanitary napkin. In this way, the usage time of the sanitary napkin can be monitored to prevent the user from forgetting to replace the sanitary napkin.

[0046] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A hygiene product change prompting system characterized by: The device includes a triboelectric generator, a microcontroller, a timer, and a transceiver, which are connected in series to form a circuit. The triboelectric generator includes a positive friction layer, a negative friction layer, and an electrical insulating layer disposed between the positive and negative friction layers. The electrical insulating layer has a hollow structure, allowing the positive and negative friction layers to pass through it and rub against each other to generate current. The timer is used for timing, and when the timer reaches a preset duration, the microcontroller controls the transceiver to send a prompt signal to an external terminal.

2. The hygiene product change prompting system according to claim 1, characterized in that: Metal electrodes are attached to the outer surface of the positive friction layer and / or the negative friction layer.

3. The hygiene product change prompting system of claim 1, wherein: The hygiene product replacement reminder system also includes a capacitor connected in parallel with the triboelectric generator.

4. The hygiene product change prompting system of claim 1, wherein: Several raised contact portions are evenly distributed on the inner surface of the positive friction layer or the negative friction layer.

5. The hygiene product change prompting system of claim 1, wherein: The positive friction layer is made of conductive fiber; the negative friction layer is a composite film formed by injecting conductive material; the conductive material is 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide salt.

6. The hygiene product change prompting system of claim 1, wherein: The material of the electrical insulation layer is polyethylene terephthalate.

7. The hygiene product change prompting system of claim 1, wherein: The hygiene product replacement reminder system also includes conductive fabric, which is used for the electrical connection of the triboelectric generator, the microcontroller, the timer, and the signal transceiver.

8. The hygiene product change prompting system of claim 7, wherein: The conductive fabric is prepared by weaving carbon nanotube fibers with one or more of cotton, linen, wool, or chemical fibers to form carbon nanotube yarn.

9. A sanitary napkin capable of indicating replacement, characterized by: The sanitary product replacement reminder system as described in any one of claims 1 to 8 includes a surface layer, an absorbent core layer, a bottom layer, and disposed between the absorbent core layer and the bottom layer.

10. The replaceable sanitary napkin of claim 9 wherein: The sanitary product replacement reminder system includes several triboelectric generators connected in parallel, which are respectively located at one or more positions on the front, back, left, and right sides of the sanitary napkin.

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