PORTABLE ESSENTIAL OIL DIFFUSION SYSTEM

Description

BE2024 / 5926 2 Finally, such devices can also be connected to a smartphone or even an electronic board to be programmable, or to further personalize the diffusion. The benefits of diffusing essential oils are also well known; they can promote well-being and relaxation, offer certain therapeutic properties, or even purify indoor air. Unfortunately, although these essential oil diffusers may have some advantages, they could be improved. Indeed, the diffusers release the oils into the surrounding air, and this can be undesirable for people in the vicinity, even disturbing or harmful to pets. For example, a user who wishes to relax while working in their office with a conventional essential oil diffuser will, unintentionally, diffuse particles into the surrounding rooms.This is undesirable for those around the user, and even less so for pets. At best, the user can, for example, isolate themselves and close their office door, but in this case, diffusion in a confined and poorly ventilated space can lead to undesirable effects or allergic reactions. There is therefore a real need to provide an essential oil diffuser that allows users to avoid contaminating their environment, that prevents the generation of undesirable effects or allergic reactions, and that optimizes the necessary consumption of essential oil, all while maintaining its effectiveness. One objective of the present invention is to overcome the challenges and prejudices of the state of the art. 2024 / 5926 BE2024 / 5926 3 In particular, an objective of the present invention is to provide a portable essential oil diffusion system for a user that allows for localized and optimized diffusion. Furthermore,One objective of the present invention is to provide a portable essential oil diffusion system which allows to limit and optimize the consumption of essential oil solution and to reduce the generation of undesirable effects or allergic reactions. The present invention aims to overcome the drawbacks of the prior art by providing a portable essential oil diffusion system for a user, equipped with a vaporization device arranged to cooperate with at least one removable and / or refillable reservoir comprising an essential oil solution. Said vaporization device comprises an electronic board connected to at least one power supply and at least one piezoelectric element, which includes a central micro-perforated membrane and a perimeter encapsulated in a circumferential seal fixed in the inner light of a housing. Said at least one central micro-perforated membrane comprises a first outer surface arranged to be in contact with the surrounding air.and a second inner surface arranged to be in contact with at least one capillary of a reservoir, said at least one removable and / or refillable reservoir includes a storage space for an essential oil solution having a cavity with at least one orifice and at least one capillary comprising a first end arranged to be in contact with said second lower surface of said micro-perforated central membrane and a second end in contact with said at least one orifice of said cavity of said reservoir. As can be seen, the portable essential oil diffusion system for a user according to the present invention comprises, on the one hand, a vaporization device and, on the other hand, at least one removable and / or refillable reservoir containing an essential oil solution. 30 2024 / 5926 BE2024 / 5926 4 Furthermore, the vaporization device comprises: -an electronic board connected to at least one power supply and at least one piezoelectric element,-at least one piezoelectric element comprises a central micro-perforated membrane and a perimeter 5 encapsulated in a circumferential seal fixed in the inner light of a housing, -more particularly, at least one central micro-perforated membrane comprises a first outer surface arranged to be in contact with the surrounding air, and a second inner surface 10 arranged to be in contact with at least one capillary of a reservoir. This advantageously provides a nebulizing device that operates autonomously and is portable for a user to deliver localized diffusion near the user's nose.15 Thus, the device according to the invention allows the user to benefit from the effects of nebulizing essential oils in a localized manner directly near their nose, thereby significantly reducing the necessary dose while maintaining effectiveness, and advantageously without disturbing those around them.20 Furthermore,The use of a piezoelectric element comprising a central micro-perforated membrane allows the diffuser to function, to be activated, only when the piezoelectric element is excited at its resonant frequency. Thus, the excitation signal of the piezoelectric element coming from the electronic board is chopped, which allows the user to have the visual impression of continuous diffusion while limiting the energy consumption of the device, the consumption of essential oil solution, and extending the lifespan of the device according to the present invention by maintaining stable diffusion over time and as a function of the number of usage cycles. Finally, at least one removable and / or refillable reservoir which includes, on the one hand, a storage space for an oil solution essential provided with a cavity with at least one orifice,and on the other hand at least one capillary comprising a first end arranged to be in contact with said second lower surface of said central microperforated membrane 5 and a second end in contact with said at least one orifice of said cavity of said reservoir, allows the user to interchange the aroma and the essential oil solution from one use to another, while maintaining the sealing of the device according to the invention. Indeed, the housing of the diffusion device according to the present invention comprises a light in which the piezoelectric element is fixed, making accessible to the surrounding air only the first outer surface of the central micro-perforated membrane; on the other side of this membrane, at least one capillary of the reservoir is in direct contact in order to convey the essential oil solution from the reservoir by capillary action, and the reservoir acts as a sealing cap to close the housing. Thus, the portable essential oil diffusion system according to the present invention can be activated on demand by the user.to provide a direct and targeted diffusion towards the user's nose in order to avoid disturbing those around them, while providing an economical device, whose energy and essential oil consumption is optimized and finally avoiding unwanted discharges. Preferably, at least one piezoelectric element of the portable essential oil diffusion system according to the present invention 25 vibrates at a frequency between 20 kHz and 10 MHz, preferably between 30 kHz and 9 MHz, preferably between 40 kHz and 8 MHz, more precisely between 50 kHz and 7 MHz, more particularly between 60 kHz and 6 MHz, advantageously between 70 kHz and 5 MHz, more advantageously between 75 kHz and 4 MHz, even more advantageously between 75 kHz and 3 MHz, preferably between 75 kHz and 2 MHz, preferably between 75 kHz and 1 MHz, more precisely between 75 kHz and 900 kHz, more particularly between 75kHz and 800kHz, advantageously between 75kHz and 700kHz,more advantageously between 75 kHz and 600 kHz, more advantageously between 75 kHz and 500 kHz, preferably between 75 kHz and 400 kHz, preferably between 75 kHz and 300 kHz, more precisely between 75 kHz and 200 kHz, more advantageously between 75 kHz and 190 kHz, preferably between 80 kHz and 180 kHz, preferably between 90 kHz and 170 kHz, advantageously between 100 kHz and 160 kHz, more advantageously between 100 kHz and 150 kHz, more advantageously between 100 kHz and 140 kHz, preferably frequency between 100kHz and 130kHz, more preferably at a frequency between 100kHz and 120kHz, for example at a frequency of 110kHz. For example, at least one piezoelectric element of the portable essential oil diffusion system according to the present invention vibrates at a frequency of 20kHz, 25kHz, 30kHz, 35kHz, 40kHz, 45kHz, 50kHz, 55kHz, 60kHz, 65kHz, 70kHz, 75kHz, 80kHz, 85kHz, 90kHz, 95kHz, 100kHz, 105kHz, 110kHz, 115kHz,120kHz,125kHz,130kHz,135kHz,140kHz,145kHz,150kHz,155 kHz,160kHz,165kHz,170kHz,175kHz,180kHz,185kHz,190kHz,195kHz,200 kHz,205kHz,210kHz,215kHz,220kHz,225kHz,230kHz,235kHz,240kHz,245 kHz,250kHz,255kHz,260kHz,265kHz,270kHz,275kHz,280kHz,285kHz,29025 kHz,295kHz,300kHz,305kHz,310kHz,315kHz,320kHz,325kHz,330kHz,335 kHz,340kHz,345kHz,350kHz,355kHz,360kHz,365kHz,370kHz,375kHz,380 kHz,385kHz,390kHz,395kHz,400kHz,405kHz,410kHz,415kHz,420kHz,425 kHz,430kHz,435kHz,440kHz,445kHz,450kHz,455kHz,460kHz,465kHz,470 kHz,475kHz,480kHz,485kHz,490kHz,495kHz,500kHz,505kHz,510kHz,51530 kHz,520kHz,525kHz,530kHz,535kHz,540kHz,545kHz,550kHz,555kHz,560 2024 / 5926 BE2024 / 5926 7 kHz,565kHz,570kHz,575kHz,580kHz,585kHz,590kHz,595kHz,600kHz,605 kHz,610kHz,615kHz,620kHz,625kHz,630kHz,635kHz,640kHz,645kHz,650 kHz,655kHz,660kHz,665kHz,670kHz,675kHz,680kHz,685kHz,690kHz,695 kHz,700kHz,705kHz,710kHz,715kHz,720kHz,725kHz,730kHz,735kHz,740 kHz,745kHz,750kHz,755kHz,760kHz,765kHz,770kHz,775kHz,780kHz,7855 kHz,790kHz,795kHz,800kHz,805kHz,810kHz,815kHz,820kHz,825kHz,830 kHz,835kHz,840kHz,845kHz,850kHz,855kHz,860kHz,865kHz,870kHz,875 kHz,880kHz,885kHz,890kHz,895kHz,900kHz,905kHz,910kHz,915kHz,920 kHz,925kHz,930kHz,935kHz,940kHz,945kHz,950kHz,955kHz,960kHz,965 kHz,970kHz,975kHz,980kHz,985kHz,990kHz,995kHz,1MHz,1.1MHz,1.210 MHz,1.3MHz,1.4MHz,1.5MHz,1.6MHz,1.7MHz,1.8MHz,1.9MHz,2.0MHz, 2.1MHz,2.2MHz,2.3MHz,2.4MHz,2.5MHz,2.6MHz,2.7MHz,2.8MHz,2.9MHz, 3.0MHz,3.1MHz,3.2MHz,3.3MHz,3.4MHz,3.5MHz,3.6MHz,3.7MHz,3.8MHz, 3.9MHz,4.0MHz,4.1MHz,4.2MHz,4.3MHz,4.4MHz,4.5MHz,4.6MHz,4.7MHz, 4.8MHz,4.9MHz,5.0MHz,5.1MHz,5.2MHz,5.3MHz,5.4MHz,5.5MHz,5.6MHz,15 5.7MHz,5.8MHz,5.9MHz,6.0MHz,6.1MHz,6.2MHz,6.3MHz,6.4MHz,6.5MHz, 6.6MHz,6.7MHz,6.8MHz,6.9MHz,7.0MHz,7.1MHz,7.2MHz,7.3MHz,7.4MHz, 7.5MHz,7.6MHz,7.7MHz,7.8MHz,7.9MHz,8.0MHz,8.1MHz,8.2MHz,8.3MHz, 8.4MHz,8.5MHz,8.6MHz,8.7MHz,8.8MHz,8.9MHz,9.0MHz,9.1MHz,9.2MHz, 9.3MHz,9.4MHz,9.5MHz,9.6MHz,9.7MHz,9.8MHz,9.9MHz,10.0MHz.20 Préférentiellement,The central micro-perforated membrane of the portable essential oil diffusion system for a user according to the present invention comprises a series of micro-perforations of diameter between 1 and 40µm, preferably between 1 and 35µm, preferably between 1 and 30µm, advantageously between 25µm and 25µm, more advantageously between 1 and 20µm, preferably between 1 and 15µm, even more advantageously between 1 and 10µm, for example a series of micro-perforations of diameter 2µm, 3µm, 4µm, 5µm, 6µm, 7µm, 8µm, 9µm, and their combination. 2024 / 5926 BE2024 / 5926 8 It has appeared according to the present invention that vibration of the piezoelectric element at a frequency between 75 and 190 kHz, and more particularly at approximately 110 kHz, associated with a series of micro-perforations with a diameter between 1 and 40 µm, more particularly between 1 and 10 µm, makes it possible to atomize the pure or diluted essential oil solution to a particle size particularly suited to nasal olfaction. Advantageously,at least one piezoelectric element connected to said electronic board of the portable essential oil diffusion system for one user according to the invention exhibits, in an adjustable manner, an oscillation between a first activated state and a second off state. 10 More advantageously, the first activated state of at least one piezoelectric element of the portable essential oil diffusion system for one user is between 1 µs and 100 µs, preferably between 1 µs and 90 µs, preferably between 1 µs and 80 µs, advantageously between 1 µs and 70 µs, more advantageously between 1 µs and 60 µs, even more advantageously between 1 µs and 50 µs, particularly between 1 µs and 40 µs, more particularly between 1 to 30 µs, preferably between 1 and 20 µs, preferably between 1 and 10 µs, for example 1 µs, 2 µs, 3 µs, 4 µs, 5 µs, 6 µs, 7 µs, 8 µs, 9 µs or 10 µs, more particularly 5 µs. Even more advantageously, the second off state of at least one piezoelectric element of the portable essential oil diffusion system for a user,is between 1µs and 100µs, preferably between 10µs and 100µs, preferably between 20µs and 100µs, advantageously between 30µs and 100µs, more advantageously between 40µs and 100µs, even more advantageously between 50µs and 100µs, particularly between 60µs and 100µs, more particularly between 70µs and 100µs, for example 70µs, 71µs, 72µs, 73µs, 74µs, 75µs, 76µs, 77µs, 78µs, 79µs, 80µs, 81µs, 82µs, 83µs, 84µs, 85µs, 86µs, 87µs, 88µs, 89µs, 90µs, 91µs, 92µs, 93µs, 94µs, 95µs, 96µs, 97µs, 98µs, 99µs or 100µs. 30 2024 / 5926 BE2024 / 5926 9 This allows, in a particularly advantageous way, to provide the user with the impression of a continuous diffusion of essential oil while limiting the use of the piezoelectric element, energy consumption and essential oil consumption. Furthermore, it has been demonstrated that the synergistic combination of a piezoelectric element vibrating at approximately 110kHz, or precisely at 110kHz, with an activation cycle comprising a first activated state of 5 µs and a second off state of 95 µs,This allowed both the visual impression of continuous diffusion, the prevention of overheating of the piezoelectric element, and the prevention of burning the essential oil, and was particularly suited to user expectations. Furthermore, in cases where the user desires a higher intensity of essential oil diffusion, the diffusion device according to the present invention will maintain the predetermined duration of the first activated state of the piezoelectric element, for example 5µs, and decrease the predetermined duration of the second off state, for example from 95µs to 70µs, which will allow the diffusion intensity to be increased, while limiting the overheating of the piezoelectric element, preventing the burning of the essential oil, and still giving the user the visual impression of continuous diffusion. Preferably, the electronic board of the portable essential oil diffusion system according to the present invention is connected to a local and / or remote control interface, comprising, for example, a means for switching the system on and off, a Bluetooth pairing means,a means of managing the power and / or activation time of at least one piezoelectric element, a means of controlling the autonomy of said system, the activation of indicative light means. Preferably, at least one power supply for the portable essential oil diffusion system for a user according to the present invention is a rechargeable battery via a connector, preferably a battery with a capacity between 100 and 1000mAh, preferably between 200 and 900mAh, preferably between 300 and 800mAh, advantageously between 300 and 700mAh, more advantageously between 300 and 600mAh, even more advantageously between 300 and 500mAh, in particular between 350 and 450mAh, for example 350mAh, 360mAh, 370mAh, 380mAh, 390mAh¸400mAh,410mAh,420mAh,430mAh,440mAhor450mAh. Preferably,The portable essential oil diffusion system for one user according to the present invention further comprises at least one support carrying said at least one atomizing device arranged to cooperate with at least one removable and / or refillable reservoir comprising an essential oil solution. More preferably, the at least one support of the portable essential oil diffusion system for one user according to the present invention is chosen from the group comprising an arm, a swiveling arm, a wristband, a belt, and a harness. Advantageously, at least one support for the portable essential oil diffusion system for one user according to the present invention is a swiveling arm connected to at least one control body connected to at least one battery body by at least one hoop, preferably a flexible hoop. It has indeed appeared particularly advantageous that the essential oil diffusion system for one user according to the present invention, with a neckband and a swiveling arm which supports the vaporization device with the reservoir,allowed it to be moved and worn around the user's neck in order to enjoy aromatherapy without disturbing those around them, while having targeted and optimized diffusion at the level of their nose by olfaction. 2024 / 5926 BE2024 / 5926 11 The headband according to the present invention is preferably flexible and / or adjustable in order to be easily positioned and adjusted around the user's neck. Furthermore, the neckband and / or at least one control unit and / or at least one battery unit of the portable essential oil diffusion system for a user according to the present invention comprises at least one shoulder, arranged to rest on a part of the user's shoulder or even clavicle, thereby enabling the system according to the present invention to rest stably around the neck, more precisely on the back of the user's elbow and on their shoulder(s) or even clavicle(s). Moreover, by resting stably around the neck, more precisely on the back of the user's elbow and on their shoulder(s) or even clavicle(s),The adjustable arm supporting the diffusion device is easily movable to direct the flow of essential oil towards the user's nose. Advantageously, the system according to the present invention is arranged to diffuse at a distance of less than 50 cm from the user's nose, preferably less than 30 cm from the user's nose. More preferably, at least one control unit of the portable essential oil diffusion system for one user according to the present invention comprises said electronic board connected to said control interface. Advantageously, at least one battery unit of the portable essential oil diffusion system for one user according to the present invention comprises said at least one power supply. More particularly, the portable essential oil diffusion system for one user according to the present invention is arranged to be worn around the user's neck. 2024 / 5926 BE2024 / 5926 12 Furthermore,It is also particularly advantageous that the system according to the present invention includes a local control interface via push buttons, touch controls, or adjustment knobs, in order to be able to adjust certain parameters of the device, such as switching it on and off, the duration of operation, and the intensity of the diffusion. It is further advantageous that the system according to the present invention includes a remote control interface, for example, an application or a connection to a smartphone via a Bluetooth pairing method, in order to be able to adjust certain parameters of the device, such as switching it on and off, the duration of operation, and the intensity of the diffusion, with increased precision. Other embodiments of the portable essential oil diffusion system for users according to the invention are indicated in the annexed claims. 15 Other features, details and advantages of the invention will become apparent from the description given below,without limitation and with reference to the drawings and examples. Figure 1 shows the portable essential oil diffusion system according to the invention with the removable reservoir unmounted, front view. Figure 2 shows the portable essential oil diffusion system according to the invention, mounted, side view. Figure 3 shows a cross-sectional view of the nebulizing device of the system according to the invention, with the reservoir mounted. In the figures, identical or analogous elements bear the same reference numerals. Figures 1 and 2 represent the portable essential oil diffusion system 1 for a user comprising a nebulizing device 2 which cooperates with a removable and / or refillable reservoir 3 (shown in cross-section in Figure 3) which contains a pure or diluted essential oil solution. The nebulizing device 2 according to the invention comprises a piezoelectric element 4 connected to an electronic board,and which comprises a central micro-perforated membrane and a perimeter which is hermetically sealed in a circumferential seal allowing fixation within the inner lumen of a casing. Furthermore, the central micro-perforated membrane has two opposing surfaces; the first outer surface is in contact with the surrounding air to allow the diffusion of the essential oil, and the second inner surface is in contact with a capillary. The capillary has two ends; the first end is in contact with the second inner surface of the central micro-perforated membrane, and the second end is in contact with an orifice of the cavity of the reservoir, which includes a storage space in which the essential oil solution is housed. Thus,the capillary 11 being in direct contact between the central micro-perforated membrane 5 and the essential oil solution in the storage space 12 of the reservoir 3 allows the essential oil solution to be delivered to the piezoelectric element 20 4 for aeration and diffusion near the user's nose. Furthermore, the housing 8 of the vaporization device 2 according to the present invention comprises a light in which the piezoelectric element 4 is fixed, making accessible to the surrounding air only the first outer surface 9 of the central microperforated membrane 5, on the other side of this membrane 5, at the level of the second inner surface 10, at least one capillary 11 of the reservoir 3 is in direct contact in order to convey the essential oil solution from the storage space 12 of the reservoir 3 by capillary action, and the reservoir 3 acts as a tight seal in order to close the housing 8. 30 2024 / 5926 BE2024 / 5926 14 Furthermore, and in a particularly synergistic manner, the piezoelectric element 4 and more precisely the central microperforated membrane 5,vibrates at a frequency between 75 and 190 kHz, more precisely around 110 kHz, combined with a series of micro-perforations with diameters between 1 and 40 µm, more precisely between 1 and 10 µm, allowing the essential oil solution, pure or diluted, to be nebulized to a particle size particularly suited to nasal olfaction. Furthermore, it has been demonstrated that the synergistic combination of the piezoelectric element vibrating at approximately 110 kHz, with an activation cycle comprising a first activated state of 5 µs and a second off state of 95 µs, simultaneously provides the visual impression of continuous diffusion, prevents overheating of the piezoelectric element, avoids burning the essential oil, and is particularly well-suited to user expectations. The housing 8 comprising the atomizing device 2 and the reservoir 15 associated with the capillary 11 is mounted on a support 18 such as a swiveling arm 19. The swiveling arm 19 is fixed in a movable manner to a control body 20 which includes a control interface 17,itself connected to the piezoelectric element 4 by means of the electronic board. The control interface 20 17 can be local and as represented,