Dew condensation preventing cover

The condensation prevention cover, made of soft resin with insulating properties and designed to fit tightly to the frame, addresses the issue of condensation accumulation by blocking ambient air contact and guiding air flow, providing a maintenance-free solution for air conditioning outlets.

JP2025116607APending Publication Date: 2025-08-08KYORITSU AIR TECH INC
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Patent Information

Application Number
JP2024011124
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-01-29
Publication Date
2025-08-08

AI Technical Summary

Technical Problem

Existing condensation prevention covers for air conditioning outlets allow ambient air to enter the space between the cover and the frame, leading to condensation accumulation and visibility of water droplets, necessitating frequent cleaning and maintenance.

Method used

A condensation prevention cover made of soft resin with insulating properties, designed to fit snugly to the frame without gaps, featuring a protrusion to guide conditioned air away from the frame and block ambient air contact, and composed of separate parts for sides and corners to accommodate various frame shapes.

Benefits of technology

Prevents condensation on the frame by eliminating gaps and blocking ambient air contact, reducing maintenance needs and ensuring a clean, gap-free installation on frames of varying shapes and sizes.

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Abstract

To provide a dew condensation preventing cover capable of further preventing the generation of dew condensation in a frame part of an air outlet for air conditioning, and higher in convenience such as being easily attached and detached.SOLUTION: Provided is a dew condensation preventing cover 10 for covering a frame part 20 which is provided by being connected with a frame body 53 forming a flow path of air conditioning air of an air outlet for air conditioning, and has a front portion 21 provided at a substantially right angle to a blow direction of air conditioning air blown out from the air outlet for air conditioning, and a rise portion 22 provided by being connected at a substantially right angle from a circumference 21P of the front portion 21. The cover is formed of a soft resin having heat insulating properties, and has a shape where the frame part 20 is covered by tightly adhering to a surface thereof, and one end positioned in the rise portion 22 of the frame part 20 is tightly adhered to a tip 22T of the rise portion 22 for covering.SELECTED DRAWING: Figure 3
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Description

[Technical Field]

[0001] The present invention relates to a condensation prevention cover that covers a frame portion of an air conditioning outlet. [Background technology]

[0002] Office buildings and other buildings are equipped with air outlets (air conditioning outlets) as part of their air conditioning equipment. The air conditioning outlets are also provided with a frame connected to a frame (outer frame). With typical air conditioning outlets, during air conditioning (especially cooling), the surrounding air drawn in by the conditioned air blowing out of the outlet comes into contact with the frame, which has been cooled by the cold conditioned air. This can cause moisture in the surrounding air to condense, resulting in condensation on the surface of the frame.

[0003] This type of problem is likely to occur in hot and humid regions or places where outdoor air intrusion is significant (such as lobbies and entrances). When condensation forms on the surface of the frame, water droplets can fall on people or objects below the air conditioning vent, causing problems. For example, if precision machinery (such as a computer or smartphone) or important documents are placed below the air conditioning vent, water droplets from above could fall on them and damage or stain them. Furthermore, if condensation occurs and seeps into or spreads on the ceiling or walls, it can leave unsightly stains and cause deterioration of the ceiling or wall materials.

[0004] Therefore, techniques for preventing condensation from occurring on the frame have been studied. For example, Patent Document 1 describes a condensation prevention cover for an air conditioning outlet that is designed to be easily attached to an existing air outlet. This condensation prevention cover 4 for an air conditioning outlet can be attached to the tip surface of the outer frame 3 of the air outlet body, which is configured with a frame body to be angular, round, or other shapes, with a certain air layer 7 formed between the tip surface of the outer frame 3 and the cover (Fig. 1). Note that the tip of the outer frame 3 here refers to the part that corresponds to the frame. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Registered Utility Model No. 3003145 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the anti-condensation cover for the air outlet described in Patent Document 1 has a problem in that ambient air can enter the space (air layer) between the cover and the tip surface of the outer frame, and come into contact with the tip (frame portion) of the outer frame that has been cooled by the cold air conditioning air, causing condensation in this area. This causes water droplets (condensation water) to accumulate in the space (air layer), necessitating periodic cleaning and maintenance, such as removing and reinstalling the cover. Furthermore, if the cover is transparent, the condensation water will be visible as spots from the outside, which is unsightly.

[0007] Therefore, the present invention aims to provide a more convenient anti-condensation cover that can better prevent condensation from occurring on the frame portion of an air conditioning outlet and can be easily attached and removed. [Means for solving the problem]

[0008] The condensation prevention cover according to the present invention comprises: A condensation prevention cover that covers a frame portion that is connected to a frame body that forms a flow path of conditioned air from an air conditioning outlet, the frame portion having a front portion that is provided at a substantially right angle to the blowing direction of the conditioned air blown out from the air conditioning outlet, and a rising portion that is provided at a substantially right angle to the periphery of the front portion, It is made of a soft resin with heat insulating properties, The frame has a shape that closely contacts and covers the surface of the frame, and one end of the frame located at the rising portion is closely contacted and covers the tip of the rising portion.

[0009] With this configuration, the condensation prevention cover is made of a soft resin with insulating properties, so it can be deformed when attached to the frame, and once attached, its elasticity allows it to fit snugly to the frame without leaving any gaps. In addition, the anti-condensation cover is shaped to fit closely to the surface of the frame, and one end located on the rising part of the frame (on the rising part side) is shaped to fit closely to the rising part that is bent so as to come into contact with the mounting surface of the ceiling or wall on which the air conditioning outlet is attached, thereby blocking heat transfer from the frame to the mounting surface of the ceiling or wall.

[0010] It is also preferable that the condensation prevention cover is provided with a protruding portion that protrudes toward the opening side of the air conditioning outlet.

[0011] By providing the protrusion, the conditioned air blown out from the opening of the air-conditioning outlet is guided by the protrusion in a direction away from the frame portion. At the same time, by providing the protrusion, the surrounding air that is drawn in by the conditioned air blown out from the opening (the conditioned air flowing near the frame) is blocked by the protrusion.

[0012] Furthermore, the condensation prevention cover is configured such that the frame portion of the air conditioning outlet is polygonal, It is desirable that the frame portion be separately constituted by a plurality of side portions covering the respective sides of the frame portion and a plurality of corner portions covering the respective corners of the frame portion.

[0013] In this way, the condensation prevention cover is made up of separate parts for the sides and corners, so that each side and corner of the frame of the air conditioning outlet is covered by multiple sides and corners. [Effects of the Invention]

[0014] With this configuration, the condensation prevention cover according to the present invention has the following features: (1-1) The dew condensation prevention cover can be easily attached to the frame by deforming it. In addition, the cover can be deformed (stretched) to fit tightly to frames with slightly different shapes without creating gaps. (1-2) In addition, once the condensation prevention cover is attached, its elasticity allows it to fit snugly against the frame, eliminating any gap between the frame and the condensation prevention cover. This prevents the surrounding air from coming into contact with the frame and causing condensation during cooling. (1-3) The condensation prevention cover is shaped to fit tightly to the tip of the rising part of the frame, so that during cooling operation, the frame (rising part) cooled by the cold air blown out from the outlet can be prevented from coming into contact with the mounting surface of the ceiling or wall and cooling the mounting surface. If the cooled frame (rising part) comes into contact with the mounting surface of the ceiling or wall, the cooled mounting surface may be cooled, and indoor air may come into contact with this cooled mounting surface, causing condensation.

[0015] (2) By providing a protrusion on the condensation prevention cover, the surrounding air drawn in by the conditioned air blown out from the opening (the conditioned air flowing near the frame) is blocked by the protrusion, preventing it from reaching the lower end of the frame body, which is located inside the frame (around the opening).

[0016] (3-1) Furthermore, by constructing the anti-condensation cover as separate parts for the sides and corners, each side and corner of the frame of the air conditioning outlet is covered by multiple sides and corners, so it can be attached regardless of the shape or size of the frame (opening). (3-2) Furthermore, since the condensation prevention cover is made of soft resin, the side can be cut with a tool to fit the size of one side of the frame, and then attached to match the corner, so that the entire frame can be covered without any gaps. [Brief explanation of the drawings]

[0017] [Figure 1]1 is a front view of an air conditioning outlet to which a condensation prevention cover according to the present invention is attached. [Figure 2] FIG. 2 is a schematic cross-sectional view of FIG. 1 . [Figure 3] 10A to 10C are diagrams for explaining a procedure for attaching a condensation prevention cover to a frame portion, based on a schematic cross-sectional view. [Figure 4] 1(i) is a schematic cross-sectional view of a case where the dew condensation prevention cover is shaped to cover the lower end of the frame body, and FIG. 1(ii) is a schematic cross-sectional view of a case where the dew condensation prevention cover is provided with a protrusion. [Figure 5] 10A and 10B are diagrams for explaining another embodiment of the condensation prevention cover according to the present invention, where (i) is a diagram before the condensation prevention cover is attached to the frame portion, and (ii) is a diagram after the condensation prevention cover has been attached to the frame portion. [Figure 6] 6 is a perspective view showing an example of a side portion of the dew condensation prevention cover shown in FIG. 5. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0018] The following describes in detail an embodiment of the present invention, but the following description of the components is one example (typical example) of the embodiment of the present invention, and the present invention is not limited to the following content unless the gist of the present invention is changed. Furthermore, components having the same functions are denoted by the same reference numerals in the drawings, and detailed description thereof will be omitted.

[0019] First, a dew condensation prevention cover 10 according to the present invention will be described with reference to FIGS. The condensation prevention cover 10 covers a frame portion 20 provided adjacent to a frame body 53 that forms a flow path for conditioned air SA of the air-conditioning outlet 50 (see FIG. 2).

[0020] [Air conditioning outlet] The air conditioning outlet 50 is attached to a mounting surface on the ceiling or wall of a room in a building, and in this embodiment, the air conditioning outlet 50 is attached to a ceiling 90 (see FIG. 2). More specifically, an opening is provided in the ceiling 90 at a position corresponding to the open end of a duct D arranged above the ceiling, and a frame 51 for attaching the air conditioning outlet 50 is fixed to the duct D from the opening with fasteners 52 (such as screws). The air conditioning outlet 50 is then fixed to the frame 51 with screws (not shown).

[0021] Furthermore, air conditioning outlet 50 blows out conditioned air SA supplied from duct D from opening 55. A plurality of blades 54 are provided at equal intervals around opening 55 near air conditioning outlet 50, and by changing the inclination of blades 54 (the angle relative to opening 55), the direction of conditioned air SA blown out from opening 55 into the room can be changed.

[0022] [Frame] The air conditioning outlet 50 is provided with a frame portion 20 connected to the frame body 53 (the lower end portion 53T of the frame body 53). The frame portion 20 is generally provided so as to hide the opening in the ceiling 90 (to improve appearance). Here, the frame portion 20 has a front portion 21 arranged approximately perpendicular to the blowing direction of the conditioned air SA blown out from the air conditioning outlet 50 (opening 55), and a rising portion 22 arranged adjacent to the peripheral edge 21P of the front portion 21 at approximately a right angle (see Figures 2 and 3).

[0023] [Condensation prevention cover] The dew condensation prevention cover 10 is shaped to tightly cover the surface of the frame portion 20 (front portion 21, rising portion 22) (the portion of the frame portion 20 of the attached air-conditioning outlet 50 that is visible to humans). Specifically, the dew condensation prevention cover 10 has a main body portion 102 that tightly covers the surface of the front portion 21 (see FIGS. 2 and 3, etc.).

[0024] Furthermore, one end of the condensation prevention cover 10 located at the rising portion 22 of the frame portion 20 has a side wall portion 103 and a tip portion 103T, which are shaped to fit closely to the rising portion 22 and its tip 22T to cover the surface (see FIGS. 2, 3, etc.). In particular, the tip portion 103T of the condensation prevention cover 10 fits closely to the tip 22T of the rising portion 22 of the frame portion 20 to completely cover the tip 22T (see FIGS. 2, 3, etc.). As a result, as shown in FIG. 1, when viewed from the front (front view), the condensation prevention cover 10 completely covers the frame portion 20.

[0025] The condensation prevention cover 10 is made of a soft resin (soft resin) having heat insulating properties. Examples of soft resins that can be used include silicon resin (silicone resin), polyvinyl chloride (soft polyvinyl chloride), and epoxy resin. Of course, resins other than those exemplified above can also be used as long as they are soft resins having heat insulating properties.

[0026] The condensation prevention cover 10 is made of a soft resin and is therefore stretchable, so that when attaching it to the frame 20, force can be applied to deform the entire cover or its details. After attachment, the condensation prevention cover 10 adheres tightly to the frame 20 due to its stretchability, leaving no gaps between it and the frame 20. Therefore, even for frame parts of slightly different shapes and sizes, the condensation prevention cover 10 can be tightly attached to the surface of the frame 20 without leaving any gaps between them.

[0027] In addition, since the anti-condensation cover 10 fits tightly to the frame part 20 due to its elasticity after being attached, it is possible to eliminate the gap between the frame part 20 and the anti-condensation cover 10, and it is possible to prevent the surrounding air from coming into contact with the frame part 20 and causing condensation during cooling. If there is a gap between the frame and the condensation prevention cover, the surrounding air that enters the gap may come into contact with the frame, be cooled, and cause water droplets (condensation water) to accumulate in the gap, which may lead to soiling of the air outlet or the mounting surface on the ceiling or wall.

[0028] As described above, the anti-condensation cover 10 has a shape in which the side wall portion 103 and the tip portion 103T tightly cover the tip 22T of the rising portion 22 of the frame portion 20, so that during cooling, the frame portion 20 (rising portion 22) cooled by the cold conditioned air SA blown out from the opening 55 can be prevented from coming into contact with the mounting surface 91 of the ceiling 90 or wall, thereby preventing the mounting surface 91 from being cooled. If the cooled frame (raised portion) comes into contact with the ceiling or wall and cools the mounting surface, indoor air may come into contact with this cooled mounting surface, causing condensation.

[0029] On the other hand, in this embodiment, one end of the condensation prevention cover 10 located on the opening 55 side has an extension 101 that covers up to the lower end 53T of the frame 53 (see FIGS. 2 to 4(i) and so on). More specifically, the extension 101 extends into the interior of the frame 53 (in the upstream direction of the flow path formed by the frame 53, and in this embodiment, extends past the lower ends of the blades 54), tightly and in close contact with the entire frame 20 and the tip 53T of the frame 53, covering them. In this way, by tightly and in close contact with the entire frame 20 as well as the lower end 53T of the frame 53 using the condensation prevention cover 10, it is possible to prevent the ambient air AA drawn in by the conditioned air SA from entering through the opening 55 and reaching the lower end 53T of the frame 53, where it is cooled and causes condensation.

[0030] Alternatively, one end of the condensation prevention cover 10 located on the opening 55 side can be configured to have a protrusion 11 that protrudes toward the center of the opening 55 of the air conditioning outlet 50 (see Figure 4(ii)).

[0031] By providing the protrusion 11, the ambient air AA drawn in by the conditioned air SA blown out from the opening 55 (the conditioned air SA flowing near the frame 20) is blocked by the protrusion 11 (see FIG. 4(ii)). Therefore, the drawn ambient air AA can be prevented from reaching the lower end 53T of the frame 53, which is located inside the frame 20 (around the periphery of the opening 55).

[0032] To explain in more detail, condensation at the air conditioning outlet occurs when the surrounding air, attracted by the conditioned air blown out from the opening (the conditioned air flowing near the frame), comes into contact with the frame, which has been cooled by the cold conditioned air blown out from the outlet. Therefore, if the protrusion 11 were not provided, the ambient air AA drawn in by the conditioned air SA would reach from the opening 55 to the lower end 53T of the frame 53, which is located inside the frame portion 20 covered by the condensation prevention cover 10 (around the periphery of the opening 55), and would be cooled down to this portion, causing condensation. However, by providing the protrusion 11, the ambient air AA drawn in by the conditioned air SA is blocked by the protrusion 11 and does not reach the lower end 53T of the frame 53, thereby preventing condensation from occurring at the lower end 53T of the frame 53.

[0033] Of course, the end of the dew condensation prevention cover 10 located on the opening 55 side may also use the configuration described with reference to FIGS. 4(i) and 4(ii).

[0034] [Condensation prevention cover (composed of separate parts)] Next, another embodiment of the condensation prevention cover according to the present invention will be described with reference to FIGS.

[0035] When the frame portion 20 of the air conditioning outlet 50 is polygonal, the condensation prevention cover 10 can be made up of separate parts (separate parts) including multiple side portions 110 covering each side of the frame portion 20 and multiple corner portions 120 covering each corner of the frame portion 20 (see Figure 5).

[0036] In this embodiment, the frame portion 20 of the air-conditioning outlet 50 is rectangular, and for convenience, the longer sides of the frame portion 20 are referred to as the vertical sides and the shorter sides as the horizontal sides (see FIG. 5(i)). The condensation prevention cover 10 is composed of two side portions 110 (111) that cover the vertical sides of the frame portion 20, two side portions 110 (112) that cover the horizontal sides, and four corner portions 120 that cover the respective corners of the frame portion 20.

[0037] In this way, the eight parts (side portions 110 (111, 112) and corner portion 120) shown in Figure 5(i) are attached to the frame portion 20 of the air conditioning outlet 50, and these parts cover the surface of the frame portion 20 without any gaps, as shown in Figure 5(ii), thereby forming the condensation prevention cover 10.

[0038] In another embodiment, each side and corner of the frame portion 20 of the air conditioning outlet 50 is covered by multiple side portions 110 and corner portions 120, so that the air conditioning outlet 50 can be installed regardless of the shape or size of the frame portion 20 (opening 55). For example, by setting the length of the side portion 110 to a specified length corresponding to the length of one side of the frame portion 20, it is possible to cover one side of a certain frame portion 20 by attaching one side portion 110, and cover one side of another frame portion 20 by attaching two side portions 110, and so on, by simply changing the number of side portions 110 to be attached.

[0039] Furthermore, since the condensation prevention cover 10, including the side portions 110 and corner portions 120, is made of soft resin, it can be easily cut. Therefore, by cutting the side portions 110 with a tool such as scissors or a cutter to match the size of one side of the frame portion 20 and then fitting them together with the corner portions 120, the entire frame portion 20 can be covered without any gaps.

[0040] Of course, other embodiments also have the same performance as the condensation prevention cover 10 described with reference to Figures 1 to 4, and in addition to these effects, can prevent condensation on the frame portion 20 and the mounting surface 91. Furthermore, other embodiments can also be configured so that the condensation prevention cover 10 has an extension portion 101 (see Figures 4(i) and 6), or so that a protrusion 11 is provided that protrudes toward the opening 55 of the air-conditioning outlet 50 (see Figure 4(ii)).

[0041] In addition, the shape of the side portion 110 is as follows: The corners formed by the main body 102 and the extension 101 and the corners formed by the main body 102 and the side wall 103 can be set to right angles (see the dashed frame of the side 113 in FIG. 6) or rounded (see the dashed frame of the side 114 in FIG. 6). The same applies to the corners 120.

[0042] The condensation prevention cover 10, side portions 110, corner portions 120, etc. described above are one example of an embodiment of the condensation prevention cover of the present invention, and the present invention is not limited to these configurations as long as the gist of the present invention is not changed. For example, the thickness of the condensation prevention cover 10 can be designed taking into consideration the flexibility required for the condensation prevention cover 10, the distance between the rising portion 21 of the frame portion 20 and the mounting surface 91, and the like.

[0043] Furthermore, the length of the protrusion 11 of the condensation prevention cover 10 and the length covering the lower end 53T of the frame body 53 (how far the lower end 53T of the frame body 53 is covered) can be appropriately changed in design. [Industrial Applicability]

[0044] The anti-condensation cover of the present invention is a more convenient anti-condensation cover that can better prevent condensation from occurring on the frame portion of an air conditioning outlet and can be easily attached and removed.It is industrially useful because it can be attached to the frame portion of any air conditioning outlet, regardless of shape, size, or whether it is existing or new. [Explanation of symbols]

[0045] 10 Condensation prevention cover 101 Extension 102 Main body 103 Side wall 103T tip 11 Protrusion 110,111,112,113,114 Side 120 Corner 20 Frame 21 Front 21P Front edge 22 Rising section 22T Tip of rising part 50 Air conditioning outlet 51 frames 52 Fixtures 53 Frame 53T Bottom end of frame 54 Feather 55 Opening 90 Ceiling 91 Mounting surface D duct SA Air Conditioning AA ambient air

Claims

1. A condensation prevention cover that covers a frame portion that is connected to a frame body that forms a flow path of conditioned air from an air conditioning outlet, the frame portion having a front portion that is provided at a substantially right angle to the blowing direction of the conditioned air blown out from the air conditioning outlet, and a rising portion that is provided at a substantially right angle to the periphery of the front portion, It is made of a soft resin with heat insulating properties, The condensation prevention cover is shaped to closely fit and cover the surface of the frame portion, and one end located at the rising portion of the frame portion is shaped to closely fit and cover the tip of the rising portion.

2. The condensation prevention cover according to claim 1 , further comprising a protrusion that protrudes toward the opening of the air-conditioning outlet.

3. The frame portion of the air conditioning outlet is polygonal, The condensation prevention cover according to claim 1 or 2, which is separately constituted by a plurality of side portions covering the respective sides of the frame portion and a plurality of corner portions covering the respective corners of the frame portion.

Citation Information

Patent Citations

  • Condensation prevention cover for air conditioning outlets

    JP3003145U