HUMIDITY LEVEL SENSITIVE MECHANICAL AIR PASSAGE CONTROL PASSIVE PACKAGING SYSTEM

Abstract

The present invention relates to passive packaging systems used in the storage and logistics processes of products adversely affected by changes in relative humidity, such as electronic, medical, pharmaceutical, optical, defense industry equipment, sensitive food products, and works of art. It concerns a fully mechanical humidity equalization mechanism that automatically controls air passage via a hygroscopic element that directly converts ambient relative humidity changes into mechanical motion, without requiring any electronic sensors, batteries, microprocessors, or external power sources.

Description

1 TARIFF 5 HUMIDITY LEVEL SENSITIVE MECHANICAL AIR PASSAGE CONTROL PASSIVE PACKAGING SYSTEM Technological Field: This invention has applications in electronics, medical, pharmaceutical, optical, defense industry equipment, and precision industries. 10 items that are negatively affected by changes in relative humidity, such as food products and works of art. Regarding passive packaging systems used in the storage and logistics processes of products. and does not have any electronic sensor, battery, microprocessor or external power source without requiring it; it directly converts the change in ambient relative humidity into mechanical motion. fully automated by controlling air passage via a hygroscopic element It relates to a mechanical moisture balancing mechanism. 15 State of the Art: Moisture, especially in electronic circuits, semiconductor components, pharmaceutical products, on biomedical materials, optical systems, precision food products and works of art Storage and logistics is one of the key environmental parameters that creates a disruptive effect. 20 Failure to control relative humidity levels during processing leads to oxidation and corrosion. leading to serious damage such as mold growth, structural deformation, and chemical degradation. It can open. In current technical applications, moisture control inside the packaging is generally desiccant packets, electronic humidity sensor systems, controlled atmosphere packaging or Moisture is provided with indicator cards. Desiccant packets contain silica gel, molecular sieve, and clay 25. It contains hygroscopic materials such as absorbent-based materials and traps moisture inside the packaging; However, these packets lose their function when they reach saturation, controlling the moisture level. It is not recyclable, cannot be recycled, has a limited lifespan, and generates waste after use. Electronic sensor systems include digital hygrometers, microcontrollers, and Although it provides active control with electromechanical valves, it requires a battery or external power source. 30 It is expensive, requires sensor calibration, and has reduced battery life during long-term storage. It is restrictive and can pose a safety risk with electronic waste. Controlled atmosphere Although the packaging provides a certain initial atmosphere through vacuum or inert gas filling, It is not dynamic, it does not respond in real time to changes in ambient humidity, and it is not long-term. Sealing problems may occur during storage. Humidity indicator cards are only visual. 35 It provides information and does not involve any control mechanisms. These methods have in common... Its shortcomings include the absence of a dynamic and reversible mechanical control mechanism. 2 The absence of an automatic air closure function at the critical humidity threshold results in an energy loss of 5. the absence of an independent adaptive valve system and long-lasting, sustainable passive The inability to offer solutions is a key issue. In this context, the technical problem is the electronic circuit. or mechanically adjusting the relative humidity of the environment directly without requiring an energy source. It activates the system, automatically cutting off air passage at critical humidity levels, and regulates humidity. Reversible, multi-purpose, low 10 that automatically returns to its original position when dropped. The goal is to develop a cost-effective and sustainable in-packaging moisture control mechanism. The main purpose of this invention is to regulate the relative humidity level inside the packaging entirely on a mechanical basis. without using any electronic circuit, sensor, battery or external power source The goal is to develop a system that can automatically control the ambient relative humidity. a hygroscopic element that directly converts the increase into physical expansion movement 15 dynamically regulating air passage through it, air flow at a critical humidity threshold. automatic shut-off and automatic restart of the system when humidity level drops One of the aims of the invention is to provide a reversible mechanism that returns it to its original position. This system provides a long-lasting and versatile real-time mechanical response to humidity changes. a reusable, maintenance-free, low-cost and environmentally friendly passive packaging 20 This provides a solution. Thus, the micro-climate inside the packaging is brought under control. moisture in electronic components, pharmaceutical products, sensitive foods and optical systems Security is being enhanced in the storage and logistics processes of highly sensitive products; Thanks to the modular structure of the system, it is suitable for packaging of different volumes and different moisture thresholds. It is possible to adapt it to their values. As a result, this invention is one of the existing 25 solutions have energy dependence, single-use nature, lack of dynamic control and high by eliminating disadvantages such as cost, it is completely mechanical, reversible and adaptive. It aims to offer a moisture-controlled passive packaging system. Explanation of Figures 30 Figure 1: General cross-sectional view of the system when it is in the open position. Figure 2: Trigger status appearance during humidity increase. Figure 3: View of the full insulation position at critical humidity. Figure 4: Appearance of the recovery process after humidity reduction. 35 References: 3 1. Main Housing Body 5 2. Air Inlet / Outlet Vents 3. Moisture-Sensitive Hygroscopic Membrane 4. Drive Shaft / Pistol 5. Mechanical Valve Plate 6. Sealing Gasket 10 7. Return Spring 8. Filter Layer 9. Controlled Airflow Path Description of the Invention: The subject of the invention is a passive packaging system with mechanical air flow control sensitive to humidity levels; 15 main housing body (1), air inlet / outlet vents (2), moisture-sensitive hygroscopic membrane (3), motion transmission shaft or piston mechanism (4), mechanical valve plate (5), sealing gasket (6), return spring (7), filter layer (8) and controlled airflow path (9) The system consists of components that can be integrated into the packaging body or It is designed to be modularly assembled onto the packaging, and the ambient relative pressure is 20°. It will control air flow entirely mechanically, depending on the humidity level. It is structured in this way. The main housing body (1) is a closed chamber structure in which the system components are placed. and will allow controlled air transfer between the external environment and the internal volume of the packaging. The structure includes at least one air inlet / outlet vent (2). The said vents (2) 25 prevents particles, dust and foreign matter from entering the system. For this purpose, a filter layer (8) is positioned. The internal volume of the packaging is covered by the vents (2). The controlled air flow path defined between (9) is defined by the mechanical valve plate (5) It is designed to be opened and closed. The moisture-sensitive hygroscopic membrane (3) is fixed in the main housing body (1) at a constant 30° placed at a specific point, it directly responds to physical changes in the ambient relative humidity level. It is manufactured from a material selected to react. The membrane in question (3), a cellulose-based, polymer-based, or composite material capable of absorbing moisture It is possible. If the ambient relative humidity level increases, the hygroscopic membrane (3) water It undergoes volumetric expansion by absorbing its vapor, and the moisture level decreases by 35. In this state, it shrinks by releasing the moisture it has absorbed. 4 Hygroscopic membrane (3), mechanical to the movement transmission shaft or piston mechanism (4) 5 It is directly related to the linear expansion motion created by the membrane (3). The motion is transferred onto the transmission shaft (4) and thanks to this transmission the mechanical valve plate (5) changes position. The motion transmission shaft (4) is also connected to the return spring (7). It is mechanically related and ensures the reversible operation of the system. 10 when the ambient relative humidity level is below a predetermined critical threshold In this case, the hygroscopic membrane (3) is in a compressed position, and the motion transmission shaft (4) is located in the rear position and the return spring (7) is in its natural position. In this case, the mechanical valve plate (5) opens the controlled air flow path (9). to hold and to allow air inlet / outlet vents (2) between the internal volume of the packaging and the external environment Free air circulation is ensured between them. 15 The ambient relative humidity level reaches or exceeds the critical threshold value. If it comes out, the hygroscopic membrane (3) expands by absorbing moisture, expansion The movement pushes the transmission shaft (4) forward and the return spring (7) It compresses. As a result of this linear mechanical movement, the mechanical valve plate (5) It is shifting towards closing. The relative humidity level is significantly above the critical threshold value of 20. If the hygroscopic membrane (3) reaches its maximum expansion, it will expand as shown above. reaching its position, the drive shaft (4) is in the maximum forward position and The mechanical valve plate (5) fits perfectly onto the sealing gasket (6) and is controlled. completely closes the air flow path (9). Sealing gasket (6), valve plate (5) 25 Elastomeric material to prevent air leaks between the vent structure and the wall. It is made of material and provides complete insulation. In this position, the packaging inside The volume is isolated from the external environment, and moisture transfer is physically prevented. If the ambient relative humidity level drops again, the hygroscopic membrane (3) absorbs It releases the moisture it has absorbed and shrinks volumetrically. With the shrinkage of the membrane (3) The forward force on the drive shaft (4) is reduced and the return spring (7) 30 This action activates and brings the mechanical valve plate (5) back to the open position. As a result, the controlled airflow path (9) is reopened and the air inlet / outlet vents (2) air circulation between the inner volume of the packaging and the external environment This is ensured by the system being reversible in multiple humidity increase and decrease cycles. is able to work. 35 The critical humidity threshold value of the system depends on the material type, thickness and of the hygroscopic membrane (3). surface area and return spring (7) spring constant and mechanical of motion transmission shaft (4) The transmission rate can be adjusted by changing it. This allows the system to adapt to different humidity sensitivities. It can be adapted to suit the product groups it belongs to. The system described in the invention does not involve any electrical circuit, electronic sensor, microprocessor, The software does not include a battery or external power source, and it directly monitors humidity changes. It is a passive and energy-independent structure that converts mechanical movement into energy. Humidity level The change is directly converted into mechanical movement via the hygroscopic membrane (3) and 10 This action opens the air flow path (9) through the mechanical valve plate (5) or This results in its closure. This structure enables dynamic humidity control within the packaging volume, ensuring critical humidity levels. Automatic insulation is implemented at these levels, and if the humidity level drops... The system automatically returns to its initial state, and there is no risk of any electronic malfunction. a long-lasting, maintenance-free and sustainable solution without It is presented. 25 35

Claims

6 REQUIREMENTS 5 1. The present invention applies to electronic, medical, pharmaceutical, optical, and defense industry equipment. sensitive food products and works of art are negatively affected by changes in relative humidity. passive packaging used in the storage and logistics processes of affected products related to systems and any electronic sensors, batteries, microprocessors or external Without requiring an energy source; the relative humidity of the environment is directly changed mechanically. 10 automatic air passage via a hygroscopic element that converts movement related to a completely mechanical humidity balancing mechanism that controls it. Its features include: Main Housing Body (1), Air Inlet / Outlet Vents (2), Moisture Control. Sensitive Hygroscopic Membrane (3), Motion Transmission Shaft / Piston (4), Mechanical Valve Plate (5), Sealing Gasket (6), Return Spring (7), Filter Layer (8), and 15 It is characterized by a Controlled Airflow Path (9).