Dehumidifier, special container for dehumidifier, and dehumidifying tablet

By combining the deliquescent desiccant into tablets and special containers, the resource waste and high cost problems of tank-type dehumidifiers are solved, a sustainable dehumidifier design is achieved, and transportation and storage costs are reduced.

CN120603638APending Publication Date: 2025-09-05OKAMOTO INDS
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Patent Information

Application Number
CN202480011931.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-08-14
Filing Date
2024-08-06
Publication Date
2025-09-05

AI Technical Summary

Technical Problem

Existing tank-type dehumidifiers require the entire container to be replaced after use, resulting in waste of resources and high transportation and storage costs, and making it difficult to achieve sustainable development.

Method used

The dehumidifier uses a tablet of deliquescent desiccant combined with a dedicated container. The dedicated container has an opening sealed with a moisture permeable membrane and a deliquescent liquid storage container. The tablet is designed to be pressurized and compressed to ensure a constant distance and contact area between the tablet and the moisture permeable membrane.

Benefits of technology

It realizes the reuse of containers, reduces the use of plastics, lowers transportation and storage costs, and meets the requirements of sustainable development.

✦ Generated by Eureka AI based on patent content.

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Abstract

The purpose of the present invention is to provide a dehumidifier, a dehumidifier container, and a dehumidifying tablet, whereby the amount of plastic and the like used can be greatly reduced in consideration of the environment, and transport and storage costs can be suppressed. The dehumidifier is used in combination with a dedicated container and a tablet which is a deliquescent moisture absorbent in a state in which a deliquescent substance is pressurized and compressed, and is characterized in that the dedicated container is provided with a deliquescent liquid storage container capable of storing a deliquescent liquid of the tablet, and a cover capable of covering the deliquescent liquid storage container. And a lid that secures a firm connection to the deliquescent storage container, the lid having an opening in the upper surface thereof, the opening being sealed by a moisture-permeable film, and in the deliquescent storage container, the inscribed circle radius of the inner circumference in the vicinity of the upper inlet is larger than the circumscribed circle radius of the outer circumference of the tablet. The inscribed circle radius of the inner circumference at a position lower than the upper inlet by only a predetermined height is smaller than the circumscribed circle radius of the outer circumference of the tablet.
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Description

Technical Field

[0001] The present invention relates to a dehumidifier, a container for the dehumidifier, and a dehumidifying tablet, which uses a deliquescent moisture absorbent to absorb moisture in the air to reduce the humidity of a space and keep the humidity low, and is used in closets, drawer cabinets, shoe cabinets, other storage spaces, etc. Background Art

[0002] Traditionally, the mainstream dehumidifier type has been the so-called accumulator-type dehumidifier. This type of dehumidifier features a receiving tray sandwiched between a centrally located portion of a container with an upper opening, dividing the container into an upper and lower compartments. Granular deliquescent desiccant is stored in the upper compartment, while the deliquescent liquid of the deliquescent desiccant dripping from the receiving tray's dripping hole is stored in the lower compartment. To prevent the deliquescent liquid from spilling if accidentally tipped, a vapor-permeable, but liquid-impermeable, membrane is bonded or welded to the upper opening to seal it. Furthermore, to improve the dehumidifier's moisture absorption performance, it is crucial to ensure a large contact area between the deliquescent desiccant and the air. Consequently, a common approach is to design the receiving tray with multiple protrusions, with the granular deliquescent desiccant stored in the upper compartment (Patent Document 1).

[0003] Prior art literature Patent Literature Patent Document 1: Japanese Patent Application Laid-Open No. 2011-78865 Summary of the Invention

[0004] Technical issues like Figure 4 As shown, the tank-type dehumidifier described in Patent Document 1 comprises: a container body 4 having an upper opening; a grating-shaped receiving tray 5 built into a centrally located portion of the container body 4, dividing the interior of the container body 4 into an upper space N and a lower space M; and a moisture-permeable but impermeable moisture-permeable membrane 6 and a sealing sheet 7 that seal the upper opening. The tank-type dehumidifier is provided with a removable cover 8 over the upper opening of the container body 4 to protect the moisture-permeable membrane 6 and sealing sheet 7. The tank-type dehumidifier thus constructed contains granular deliquescent desiccant C in the upper space N of the container body 4. During use, the consumer (user) peels the sealing sheet 7 from above the moisture-permeable membrane 6. Moisture in the air then flows through the moisture-permeable membrane 6 into the container body 4 and is absorbed by the deliquescent desiccant. When the deliquescent moisture absorbent is completely consumed as deliquescing progresses, it is necessary to remove the accumulated deliquescent liquid by peeling off the moisture-permeable film 6 adhered to the upper surface opening, and then discard the container.

[0005] Therefore, the used storage tank dehumidifier needs to be replaced with a new one together with the container, so the cost is high and it also causes waste of resources. Moreover, this is not just a problem of cost and waste of resources. There is also the problem that consumers need to purchase and carry bulky goods, which is very troublesome, or that space is required in the storage place of inventory goods. As mentioned above, considering the required specification of ensuring the contact area between the deliquescent desiccant and the air, the container will naturally become larger. In addition to the volume of the upper space and the lower space, the air of the space component equipped with multi-stage protrusions must be transported and stored. Furthermore, this is a more serious problem not only for consumers, but also for manufacturers, wholesalers, and retailers. This is because the transportation of goods or warehouses are forced to ensure greater transportation capacity and space, forcing companies to bear huge transportation costs and storage costs.

[0006] On the other hand, the call for companies to commit to sustainability has long been a topic of discussion, and thus, corporate trends related to the development of sustainable materials and the establishment of mechanisms to avoid wasting resources have always attracted much attention.

[0007] The present invention aims to solve the above-mentioned problems, and an object thereof is to provide a dehumidifier, a dehumidifier container, and a dehumidification tablet that can significantly reduce the amount of plastics used and suppress transportation and storage costs while taking the environment into consideration.

[0008] Technical Solution The present invention solves the above-mentioned problem through the following dehumidifier, which is a dehumidifier that combines tablets of a deliquescent desiccant in a pressurized and compressed state as a deliquescent substance and a special container. The dehumidifier is characterized in that the special container has a deliquescent liquid storage container and a lid, the deliquescent liquid storage container is capable of storing the deliquescent liquid of the tablet, the lid ensures a firm connection with the deliquescent liquid storage container, has an opening on the upper surface, and the opening is sealed by a moisture-permeable film, and in the deliquescent liquid storage container, the inscribed circle radius of the inner circumference near the upper inlet is larger than the circumscribed circle radius of the outer circumference of the tablet, and in contrast, the inscribed circle radius of the inner circumference at a position only a predetermined height lower than the upper inlet is smaller than the circumscribed circle radius of the tablet.

[0009] In addition, the present invention also solves the above-mentioned problem through the following special container for dehumidifiers, which can accommodate tablets of deliquescent desiccant in a pressurized and compressed state as a deliquescent substance and be used as a dehumidifier. The special container for dehumidifiers is characterized in that the special container has a deliquescent liquid storage container and a lid, the deliquescent liquid storage container can store the deliquescent liquid of the tablets, the lid ensures a firm connection with the deliquescent liquid storage container, and has an opening on the upper surface, and the opening is sealed by a moisture-permeable film. In the deliquescent liquid storage container, the inscribed circle radius of the inner circumference near the upper inlet is larger than the circumscribed circle radius of the outer circumference of the tablet, and in contrast, the inscribed circle radius of the inner circumference at a position only a predetermined height lower than the upper inlet is smaller than the circumscribed circle radius of the tablet.

[0010] Furthermore, the present invention solves the above-mentioned problem by means of the following dehumidifying tablet, which is a cylindrical dehumidifying tablet that can be used as a dehumidifier in combination with a dedicated container formed so that the radius of the inscribed circle of the inner circumference at a position only a predetermined height lower than the upper inlet is smaller than the radius of the inscribed circle of the inner circumference near the upper inlet. The dehumidifying tablet is characterized in that the dehumidifying tablet is a deliquescent desiccant in a pressurized and compressed state of a deliquescent substance, the height of the dehumidifying tablet is set to be smaller than the predetermined height set for the dedicated container, and twice its height is greater than the predetermined height of the dedicated container, and the radius of the circumscribed circle of the outer circumference is set to be smaller than the radius of the inscribed circle of the inner circumference near the upper inlet of the dedicated container and greater than the radius of the inscribed circle of the inner circumference at a position only a predetermined height lower than the upper inlet.

[0011] Technical Effects According to the present invention having the above-mentioned characteristics, the container can be reused and the amount of plastic used in the container itself can be reduced. Therefore, a dehumidifier, a dedicated container for a dehumidifier, and a dehumidification tablet can be provided that can significantly reduce the use of plastics and the like and reduce transportation and storage costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 1 is an explanatory diagram showing the overall structure of a dehumidifier according to a first embodiment of the present invention. Figure 1 (a) is a cross-sectional view of a state where the cover is removed and a dehumidifying tablet is placed in the deliquescent liquid storage container. Figure 1 (b) is a top view of the deliquescent liquid storage container with the cover removed. Figure 1 (c) is a cross-sectional view of the cover, Figure 1 (d) is a picture of dehumidifying tablets housed in an airtight bag.

[0013] Figure 2 1 is an explanatory diagram showing the overall structure of a dehumidifier according to a second embodiment of the present invention. Figure 2 (a) is a cross-sectional view of a state where the cover is removed and a dehumidifying tablet is placed in the deliquescent liquid storage container. Figure 2 (b) is a top view of the deliquescent liquid storage container with the cover removed. Figure 2 (c) is a cross-sectional view of the cover, Figure 2 (d) is a picture of dehumidifying tablets housed in an airtight bag.

[0014] Figure 3 It is an explanatory diagram showing a third embodiment of the present invention.

[0015] Figure 4 This is a cross-sectional view illustrating a conventional tank-type dehumidifier.

[0016] Explanation of symbols 1 Deliquescent liquid storage container 11. Tablet support 12 Tablet guide 13 Tablet drop suppression unit 14 External thread 2 covers 21 Cover the surface 211 Periphery 22 Cover side 221 Internal thread 222 drooping edge 1A Deliquescent liquid storage container 11A Tablet support 12A Tablet guide 14A External thread 2A cover 1B Deliquescent liquid storage container 2B cover T Dehumidification Tablets TB1 Dehumidification Tablets TB2 Dehumidification Tablets DETAILED DESCRIPTION

[0017] The following detailed description of the embodiments of the present invention is based on the accompanying drawings. The following drawings are prepared for illustrative purposes. To facilitate understanding, unnecessary components may be intentionally omitted. Furthermore, components may be intentionally enlarged or reduced in size for ease of explanation. The drawings are not intended to be accurate to scale.

[0018] <First embodiment> (Overall structure of dehumidifier) Figure 1 1 is an explanatory diagram showing the overall structure of a dehumidifier according to a first embodiment of the present invention. Figure 1(a) is a cross-sectional view of a state where the cover is removed and a dehumidifying tablet is placed in the deliquescent liquid storage container. Figure 1 (b) is a top view of the deliquescent liquid storage container with the cover removed. Figure 1 (c) is a cross-sectional view of the cover, Figure 1 (d) is a picture of dehumidifying tablets housed in an airtight bag.

[0019] The dehumidifier of the first embodiment of the present invention is a dehumidifier using a dedicated container and a dehumidifying tablet T in combination. Figure 1 (a) to Figure 1 As shown in (c), the dedicated container includes a deliquescent liquid storage container 1 and a lid 2. The deliquescent liquid storage container 1 is configured to store the deliquescent liquid of the dehumidifying tablet T at its lower portion. The lid 2 ensures a secure connection to the deliquescent liquid storage container 1 while holding the dehumidifying tablet T therebetween. Specifically, it is configured as a screw cap or a twist cap.

[0020] from Figure 1 The cross-sectional view (a) shows that the dehumidifying tablet T is arranged so as to float from the bottom surface by being supported by the ribs R formed on the inner surface of the deliquescent liquid storage container 1. That is, by supporting the dehumidifying tablet T by the ribs R, the dehumidifying tablet T is arranged at a predetermined height from the inner bottom surface of the deliquescent liquid storage container 1. Of course, the upper surface of the dehumidifying tablet T will also be located at a specific height from the inner bottom surface of the deliquescent liquid storage container 1, and a constant distance can be set so that the upper surface of the dehumidifying tablet T is close to the moisture-permeable membrane F provided on the cover 2 described later. Figure 1 The top view of (b) shows that the rib R consists of three parts. Figure 1 In (c), it can be seen that the opening 212 (not shown) provided on the upper surface of the cover 2 is sealed by welding the moisture-permeable film F to form the cover upper surface 21 .

[0021] (Structure of deliquescent liquid storage container) The outer periphery of the main body of the deliquescent liquid storage container 1 is formed with an external thread 14 that screws into the internal thread 221 of the lid 2. The thread is preferably a plurality of threads so that it can be opened and closed with a small number of turns, and is composed of two or four threads.

[0022] The inner surface of the deliquescent liquid storage container 1 is formed with a rib R. The rib R is composed of three parts: a tablet support portion 11, a tablet guide portion 12, and a tablet drop suppression portion 13. Figure 1As shown in (b), four ribs R are arranged at 90-degree intervals along the circumferential direction. The radius of the inscribed circle defined by the tip of the tablet support portion 11 extending from the inner circumference toward the center of the deliquescent liquid storage container 1 is set to be smaller than the radius of the outer circumference (circumscribed circle) of the dehumidifying tablet T. As a result, the tablet support portion 11 functions to support the dehumidifying tablet T, placing the dehumidifying tablet T at a predetermined height from the inner bottom surface of the deliquescent liquid storage container 1.

[0023] The tablet guide 12 is designed to be gradually inclined from the inner circumference of the deliquescent liquid storage container 1 toward the center. This ensures that even if a dehumidifying tablet T is randomly dropped from the inlet of the deliquescent liquid storage container 1, the dehumidifying tablet T will be positioned in the center of the deliquescent liquid storage container 1. Naturally, the placed dehumidifying tablet T will not come into contact with the inner wall of the container, allowing the deliquescent liquid to flow smoothly. The tablet drop prevention portion 13 is designed to be gradually inclined from the front end of the tablet support portion 11 toward the center. This ensures that even if the outer circumference of the dehumidifying tablet T decreases as deliquescing progresses, the dehumidifying tablet T will not immediately fall downward. However, a straight shape rather than an inclination does not deviate from the technical concept of the present invention. This is because dehumidifiers are required to achieve maximum performance immediately after being placed in a humid, enclosed space. Therefore, even if the performance decreases slightly in the latter half of the dehumidifier's use, this can be tolerated. Given these requirements, an inclination for the tablet drop prevention portion 13 is unlikely to be required. In addition, the rib R is provided as a member attached to the deliquescent liquid storage container 1 by welding or the like, but may be integrally molded with the deliquescent liquid storage container 1 .

[0024] (Structure of the lid) The lid 2 is generally composed of a lid top surface 21 and lid side surfaces 22. A circular opening 212 (not shown) is provided in the center of the lid top surface 21. The peripheral edge 211 of the lid top surface 21 is positioned slightly higher than the lid top surface 21, and the moisture-permeable film F is heat-welded to this peripheral edge 211. Furthermore, a drooping edge 222 droops downward from the outer periphery of the opening 212 (not shown). This dimension, when set to abut against the top surface of the dehumidifying tablet T when the lid 2 is attached to the deliquescent liquid storage container 1, can serve as a reference for maintaining a constant, close distance between the lid top surface 21 and the dehumidifying tablet T. However, this is not the case as shown in the illustrations.

[0025] The dedicated container in the dehumidifier of the first embodiment is configured so that when the lid 2 is closed, liquid is prevented from passing through the moisture-permeable membrane F, but gas is permitted to pass. The moisture-permeable membrane needs to be strong enough to withstand repeated use, so a two-layer structure is preferably used, wherein a nonwoven fabric is laminated onto a porous membrane obtained by stretching polyethylene or polypropylene containing an inorganic filler. Alternatively, a three-layer structure, comprising a nonwoven fabric, a porous membrane, and a nonwoven fabric, can be used to provide even higher strength.

[0026] Conventional dehumidifiers have a moisture-proof film laminated on top of a moisture-permeable film, requiring the film to be bonded to the container. Furthermore, the film must be peeled off when the dehumidifier is used, requiring easy peeling without damaging the porous film layer.

[0027] If a moisture-proof film is directly superimposed and attached to a porous film made by stretching polyethylene or polypropylene mixed with an inorganic filler, it is difficult to easily peel the moisture-proof film without damaging the porous film layer. To address these issues, moisture-permeable films made by laminating non-woven fabrics onto porous films are mainly used. In this case, the non-woven fabric must not significantly hinder the moisture permeability of the porous film and can provide additional strength. In addition, to facilitate bonding to the container and the moisture-proof film, the non-woven fabric is also required to be heat-weldable.

[0028] Therefore, the fibers of the nonwoven fabric use a sheath-core structure of PE and PET. In the first embodiment, since a moisture-proof film is not required, the nonwoven fabric (at least the nonwoven fabric on one side in the case of a three-layer structure) does not need to be heat-welded. This allows the use of more affordable nonwoven fabrics of PP or PET, rather than expensive sheath-core nonwoven fabrics.

[0029] The inner circumference of the lid side 22 is formed with an internal thread 221 that screws into the external thread 14 formed on the outer circumference of the upper portion of the main body of the deliquescent liquid storage container 1. The threads are preferably multiple, so as to enable opening and closing with a minimum number of turns, and may consist of two or four threads. Alternatively, instead of the internal thread 221, lugs (claws) may be provided on the inner circumference of the lid side 22, creating a lid that screws onto the external thread 14, a so-called twist-off lid. The operator will feel an increase in torque resistance, ultimately leading to a snap, confirming that the lid has been properly closed.

[0030] (Structure of dehumidification tablets) Dehumidification tablets T are deliquescent hygroscopic agents in a pressurized and compressed state, specifically calcium chloride in tablet form. They are manufactured by filling powdered calcium chloride into the cylinder of a 50t press (tablet press) and extruding the resulting product. The tableted calcium chloride can achieve a density of 1.63g / ml simply by adjusting the pressure, ensuring sufficient strength for actual use. It should be noted that magnesium chloride tablets can also be used as a substitute for calcium chloride. Figure 1 As shown in (d), the dehumidifying tablets T are stored in an airtight transparent bag. The bag is a transparent bag made of, for example, stretched polypropylene or polyvinylidene chloride, which has water vapor barrier properties to prevent deliquescence of the hygroscopic agent, but may also be opaque. Alternatively, the bag may be a bag obtained by laminating a nylon film, aluminum foil, aluminum vapor deposition, and polyethylene, etc. The laminating method may be appropriately adopted, such as four-side sealing, three-side sealing (seal), standing pouches, and blister packaging. Furthermore, even if it is not a bag, a box or can with water vapor barrier properties can also be used as a storage container.

[0031] The deliquescent liquid storage container 1 is designed so that the inscribed radius of the inner circumference near the upper inlet is larger than the inscribed radius of the inner circumference at a position a predetermined height below the upper inlet. Under this premise, the dimensions of the dehumidifying tablet T are set as follows. Specifically, the height of the dehumidifying tablet T is set to be smaller than the predetermined height from the upper inlet of the deliquescent liquid storage container 1, and twice its height is larger than the predetermined height. Furthermore, the circumscribed radius of the outer circumference of the dehumidifying tablet T is set to be smaller than the inscribed radius of the inner circumference near the upper inlet of the deliquescent liquid storage container 1 and larger than the inscribed radius of the inner circumference at a position a predetermined height below the upper inlet. Dehumidifying tablet T dimensioned in this manner exhibits optimized dehumidification performance. This height dimension maintains a constant distance between the moisture-permeable membrane F and the top surface of the dehumidifying tablet T, accelerating moisture absorption (absorption rate). In this regard, experiments conducted by the present inventors in their prior application revealed that by ensuring that the distance between the moisture-permeable membrane F and the top surface of the dehumidifying tablet T is sufficiently close, a dehumidification effect comparable to that of conventional tank-type dehumidifiers, which utilize multi-stage protrusions on the receiving tray to ensure a large contact area between the deliquescent desiccant and the air, can be achieved. The reason for this is believed to be as follows. When comparing the deliquescence rates of "multiple granules" and "a single tablet" for deliquescent substances of the same weight and concentration without using a moisture-permeable membrane, the granules with a larger surface area are superior. However, in dehumidifiers equipped with a moisture-permeable membrane, the "flow rate of water vapor introduced into the container through the moisture-permeable membrane" depends on the membrane's performance, the area of ​​the lid and container opening, the surface area of ​​the deliquescent substance, and the distance between the deliquescent substance and the moisture-permeable membrane. Furthermore, by setting the diameter of the dehumidifying tablets T, a constant gap is created between the inner surface of the deliquescent liquid storage container 1 and the side surface of the dehumidifying tablets T. This allows the deliquescent liquid to flow smoothly downward, thereby preventing a decrease in hygroscopicity. Furthermore, by setting the height dimension, if two dehumidifying tablets T are accidentally placed on top of each other, the lid 2 will not close, making it possible to detect such an error.

[0032] How to use a dehumidifier A method of using the dehumidifier according to the first embodiment of the present invention will be described.

[0033] (1) Prepare the dedicated container and dehumidification tablets T in a transparent bag before use.

[0034] (2) Rotate the lid 2 mounted on the deliquescent liquid storage container 1 in the opening direction and remove the lid 2.

[0035] (3) Open the dehumidification tablet T.

[0036] (4) Place the removed dehumidifying tablet T on the tablet support portion 11 of the rib R on the inner surface of the deliquescent liquid storage container 1. Since the rib R is provided with a slanted tablet guide 12, the dehumidifying tablet T will naturally be positioned in the center even if it is randomly inserted. Of course, the placed dehumidifying tablet T will not come into contact with the inner wall of the container.

[0037] (5) The lid 2 is rotated relative to the deliquescent liquid storage container 1 in the lid closing direction. Finally, when it is confirmed that the torque resistance becomes larger and a snapping feeling is felt, the lid is fastened.

[0038] (6) Install a dehumidifier in the space you want to dehumidify, such as a closet, chest of drawers, or shoe cabinet, to dehumidify the space.

[0039] (7) If all the dehumidifying tablets T are deliquesced and the dehumidifying performance is reduced, the lid 2 is removed and the deliquescent liquid stored in the deliquescent liquid storage container 1 is discarded by pouring out. Furthermore, the interior of the deliquescent liquid storage container 1 is cleaned as needed.

[0040] (8) Afterwards, the process can be returned to (2) above and a new dehumidifying tablet T can be used for reuse.

[0041] <Second embodiment> (Overall structure of dehumidifier) Figure 2 1 is an explanatory diagram showing the overall structure of a dehumidifier according to a second embodiment of the present invention. Figure 2 (a) is a cross-sectional view of a state where the cover is removed and a dehumidifying tablet is placed in the deliquescent liquid storage container. Figure 2 (b) is a top view of the deliquescent liquid storage container with the cover removed. Figure 2 (c) is a cross-sectional view of the cover, Figure 2 (d) is a picture of dehumidifying tablets housed in an airtight bag.

[0042] The dehumidifier of the second embodiment of the present invention is a dehumidifier using a dehumidification tablet and a dedicated container in combination. The dehumidification tablet T is the same as the dehumidification tablet used in the first embodiment, so the description thereof is omitted.

[0043] like Figure 2 (a) to Figure 2 As shown in (c), the dedicated container includes a deliquescent liquid storage container 1A and a lid 2A. The lid 2A is identical to the lid 2 of the first embodiment. The deliquescent liquid storage container 1A is configured to store the deliquescent liquid of the dehumidifying tablet T at its lower portion. The lid 2A (2) ensures a secure connection to the deliquescent liquid storage container 1A while the dehumidifying tablet T is interposed therebetween. Specifically, it is configured as a screw cap or a twist cap.

[0044] from Figure 2 In the cross-sectional view (a), it can be seen that the dehumidifying tablet T is supported by the protrusion P formed on the inner surface of the deliquescent liquid storage container 1 and is arranged in a manner floating from the bottom surface. That is, by supporting the dehumidifying tablet T by the protrusion P, the dehumidifying tablet T is arranged at a position at a predetermined height from the inner bottom surface of the deliquescent liquid storage container 1A. Of course, the upper surface of the dehumidifying tablet T will also be located at a position at a specific height from the inner bottom surface of the deliquescent liquid storage container 1A, and can be set to a constant distance so that the upper surface of the dehumidifying tablet T is close to the moisture-permeable membrane F provided on the cover 2A (2). From Figure 2 The top view of (b) shows that the protrusion P is composed of two parts. Figure 2 In (c), it can be seen that the opening 212 (not shown) provided on the upper surface of the cover 2A ( 2 ) is sealed by welding the moisture-permeable film F, thereby forming the cover upper surface 21 .

[0045] (Structure of deliquescent liquid storage container) The outer periphery of the upper portion of the main body of the deliquescent liquid storage container 1A is formed with an external thread portion 14A that screws into the internal thread portion 221 of the lid 2A (2). The thread is preferably a plurality of threads so that it can be opened and closed with a small number of turns, and is composed of two or four threads.

[0046] A protrusion P is formed on the inner surface of the deliquescent liquid storage container 1A. The protrusion P is composed of two parts: a tablet support part 11A and a tablet guide part 12A. Figure 2 As shown in (b), four protrusions P are arranged at 90-degree intervals along the circumference. The radius of the inscribed circle defined by the tip of the tablet support portion 11A extending from the inner circumference of the deliquescent liquid storage container 1A toward the center is set to be smaller than the radius of the outer circumference (circumscribed circle) of the dehumidifying tablet T. As a result, the tablet support portion 11A functions to support the dehumidifying tablet T, placing the dehumidifying tablet T at a predetermined height from the inner bottom surface of the deliquescent liquid storage container 1.

[0047] The tablet guide 12A is formed to be gradually inclined from the inner circumference of the deliquescent liquid storage container 1 toward the center. This ensures that even if a dehumidifying tablet T is randomly introduced from the inlet of the deliquescent liquid storage container 1A, the dehumidifying tablet T will be positioned at the center of the deliquescent liquid storage container 1A. It should be noted that the protrusion P is provided as a component attached to the deliquescent liquid storage container 1 by welding or the like, but it may also be integrally formed with the deliquescent liquid storage container 1.

[0048] like Figure 2As shown in (a), the deliquescent liquid storage container 1A, which has protrusions P instead of ribs R, does not have a tablet drop-prevention portion to prevent the dehumidifying tablets T from falling downward. However, since dehumidifiers are required to achieve maximum performance immediately after being placed in a humid, enclosed space, a slight decrease in performance during the latter half of the dehumidifier's use is tolerated. Even with this approach, the intended goal of providing a dehumidifier that is environmentally friendly and reduces transportation and storage costs can be achieved. It should be noted that while the terms "rib R" and "protrusion P" are used in the description of the embodiment, these are used in a broad sense of the word "rib." That is, "protrusion P" is also included in the term "rib" used in the patent application.

[0049] <Third embodiment> Figure 3 This is an explanatory diagram showing a third embodiment of the present invention. The dehumidifier of the third embodiment is composed of a dedicated container and a dehumidifying tablet TB1 or TB2, and the dedicated container is composed of a deliquescent liquid storage container 1B and a lid 2B. The dehumidifier of the third embodiment of the present invention is the same as the first and second embodiments in that a dedicated container and a dehumidifying tablet are used in combination, but is different from the first or second embodiment in that it does not have ribs or the like that perform the function of supporting the dehumidifying tablet T. Instead, the deliquescent liquid storage container 1B in the third embodiment is configured to have a shape in which the upper portion inside the container opening narrows in a truncated cone shape. Thus, the deliquescent liquid storage container 1B is configured so that the radius of the inscribed circle of the inner circumference at a position only a predetermined height lower than the upper inlet is smaller than the radius of the inscribed circle of the inner circumference near the upper inlet, and can support the tablet at a height position where the radius of the inscribed circle is equal to the radius of the circumscribed circle of the dehumidifying tablet TB1 or the dehumidifying tablet TB2.

[0050] On the other hand, a simple cylindrical tablet shape would hinder the deliquescent liquid from flowing downward, so an improved shape was developed. Specifically, the dehumidifying tablet TB1 is formed into a circular ring with a perforated center, and the side surfaces of the dehumidifying tablet TB2 are curved. This creates a gap with the deliquescent liquid storage container 1B, allowing the deliquescent liquid to flow downward smoothly. Alternatively, a polygonal shape can be used to create a gap with the inner surface of the deliquescent liquid storage container 1B, thereby allowing the deliquescent liquid to flow downward smoothly.

[0051] While the dehumidifier according to the embodiments of the present invention has been described in detail above with reference to the accompanying drawings, and its structure has been illustrated, the specific structure is not limited to these embodiments, and design modifications that do not depart from the scope of the present invention are encompassed by the present invention. For example, regarding the common circular shape of the deliquescent liquid storage container and the lid, as long as the relationship between the inscribed circle radius of the container's inner circumference and the circumscribed circle radius of the tablet's outer circumference is maintained, in other words, as long as the dehumidifying tablet can be supported at a predetermined height, other shapes such as a rectangle may also be used. Furthermore, the four ribs R or protrusions P arranged at 90-degree intervals along the circumferential direction may also be arranged at 120-degree intervals.

[0052] Furthermore, the height relationship between the dedicated container and the dehumidifying tablets is set so that the height of the placed dehumidifying tablets does not protrude from the dedicated container, while preventing the lid from closing if two dehumidifying tablets are accidentally placed on top of each other. Alternatively, the height of the placed dehumidifying tablets may be set so that the tablets protrude from the dedicated container, while also allowing the lid to be appropriately placed in the dedicated container by giving it a thickness. However, setting the size so that the lid cannot close if two dehumidifying tablets are accidentally placed on top of each other is, of course, important.

Claims

1. A dehumidifier comprising a tablet of a deliquescent moisture absorbent in a pressurized and compressed state, and a dedicated container, wherein: The dedicated container is provided with a deliquescent liquid storage container and a cover, The deliquescent liquid storage container is capable of storing the deliquescent liquid of the tablet, The lid ensures a firm connection with the deliquescent liquid storage container and has an opening on its upper surface, and the opening is sealed by a moisture-permeable film. In the deliquescent liquid storage container, the inscribed circle radius of the inner circumference near the upper inlet is larger than the circumscribed circle radius of the tablet outer circumference. In contrast, the inscribed circle radius of the inner circumference at a position only a predetermined height lower than the upper inlet is smaller than the circumscribed circle radius of the tablet outer circumference.

2. The dehumidifier according to claim 1, characterized in that Ribs are provided at a plurality of circumferentially spaced positions at a position lower than the upper inlet by a predetermined height. Thus, the radius of the inscribed circle at a position lower than the upper inlet by a predetermined height is smaller than the radius of the circumscribed circle of the tablet outer circumference.

3. The dehumidifier according to claim 2, characterized in that The rib is configured such that the radius of the inscribed circle gradually decreases from a specific position above a low position to the low position, which is a position lower than the upper inlet by a predetermined height.

4. The dehumidifier according to claim 3, characterized in that The rib is formed continuously from a position lower than the upper inlet by a predetermined height to a bottom surface of the deliquescent liquid storage container.

5. The dehumidifier according to claim 1, characterized in that The deliquescent liquid storage container is configured such that the upper portion of the opening narrows in a truncated cone shape, so that the inscribed circle radius of the inner circumference at a position lower than the upper inlet by a predetermined height is smaller than the inscribed circle radius of the inner circumference near the upper inlet.

6. A container for a dehumidifier capable of containing a tablet of a deliquescent moisture absorbent in a pressurized and compressed state as a deliquescent substance and used as a dehumidifier, wherein the container for a dehumidifier is characterized in that: The dedicated container is provided with a deliquescent liquid storage container and a cover, The deliquescent liquid storage container is capable of storing the deliquescent liquid of the tablet, The lid ensures a firm connection with the deliquescent liquid storage container and has an opening on its upper surface, and the opening is sealed by a moisture-permeable film. In the deliquescent liquid storage container, the inscribed circle radius of the inner circumference near the upper inlet is larger than the circumscribed circle radius of the tablet outer circumference. In contrast, the inscribed circle radius of the inner circumference at a position only a predetermined height lower than the upper inlet is smaller than the circumscribed circle radius of the tablet outer circumference.

7. A dehumidifying tablet having a cylindrical shape capable of being used as a dehumidifier in combination with a dedicated container having an inner circumference having an inscribed circle radius smaller than the inner circumference radius near the upper inlet at a position lower than the upper inlet by a predetermined height, wherein the tablet is characterized in that: The dehumidifying tablet is a deliquescent desiccant in a pressurized and compressed state of a deliquescent substance. The height of the dehumidifying tablet is set to be smaller than the predetermined height set for the dedicated container, and twice its height is greater than the predetermined height of the dedicated container. The circumscribed circle radius of the outer periphery is set to be smaller than the inscribed circle radius of the inner periphery near the upper entrance of the dedicated container and greater than the inscribed circle radius of the inner periphery at a position only a predetermined height lower than the upper entrance.

8. A dehumidifying tablet having a cylindrical shape capable of being used as a dehumidifier in combination with a dedicated container having an inner circumference having an inscribed circle radius at a position lower than an upper inlet by a predetermined height smaller than an inner circumference near the upper inlet, wherein the tablet is characterized in that: The dehumidifying tablet is a deliquescent desiccant in a pressurized and compressed state of a deliquescent substance. The dehumidifying tablet is set to a height that is greater than the predetermined height set for the dedicated container, but is of a size that allows the lid to be closed by the thickness of the lid, and is of a size that cannot be closed when the lid is twice its height. The dehumidifying tablet is also set to a circumscribed circle radius of the outer periphery that is smaller than the inscribed circle radius of the inner periphery near the upper entrance of the dedicated container and larger than the inscribed circle radius of the inner periphery at a position that is only a predetermined height lower than the upper entrance.

Citation Information

Patent Citations

  • Receiving pan for dehumidifier and container

    JP2011078865A