Cooling pad

Abstract

To provide a cooling pad that can be inserted inside products such as pillows, mats, or cushions to cool the user's head and neck area, and that can maintain its cooling performance for a long period of time. [Solution] The device includes a square-shaped base portion formed by fusing the epithelium and the subcutaneous tissue, and a foam portion formed protruding from the base portion, wherein the foam portion is formed in multiple units and filled with different phase-change materials.

Description

Technical Field

[0001] The present invention relates to a cooling pad, and more particularly, to a cooling pad that can be inserted inside products such as pillows, mats, or futons to cool the head and neck regions of a user and can maintain a long-lasting cooling performance.

Background Art

[0002] As global warming progresses rapidly, various adverse effects on the natural environment or human society have been reported. In particular, due to the rise in summer temperatures, the quality of sleep has deteriorated, such as in the case of tropical nights.

[0003] Recently, cooling neck bands that can be worn around the neck in a cooled state on hot days and gradually melt while absorbing the heat of the human body to maintain the coolness of the human body at a certain temperature have been diversely developed. As an example, Patent Document 1: Korean Registered Patent No. 10-2306013 discloses a wearable cooling tube and its manufacturing method.

[0004] However, in the case of the conventional ones as described above, there is a problem that there is a limit in improving the quality of sleep and life by inserting and cooling inside products such as pillows, mats, or futons, and the cooling performance cannot be maintained for a long time.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present invention was devised to solve the problems of the conventional technology described above, and its purpose is to provide a cooling pad that can be inserted inside products such as pillows, mats, or cushions to cool the user's head and neck, and that can maintain its cooling performance for a long period of time.

[0007] The problems that this invention aims to solve are not limited to those mentioned above, and other problems that this invention aims to solve that are not mentioned herein will be clearly understood by a person with ordinary skill in the art to which this invention pertains from the following description. [Means for solving the problem]

[0008] A cooling pad according to a preferred embodiment of the present invention includes a rectangular base portion formed by fusing epithelium and subcutaneous tissue together, and a foam portion formed protruding from the base portion, wherein the foam portion is formed in a plurality of units and filled with different phase-change materials.

[0009] Furthermore, the base portion according to a preferred embodiment of the present invention includes a lower base portion and an upper base portion laminated and fused to the lower base portion, and the foam portion is characterized in that it includes a lower foam portion formed to protrude downward from the lower base portion and an upper foam portion formed to protrude upward from the upper foam portion.

[0010] Furthermore, in a preferred embodiment of the present invention, the lower foam portion and the upper foam portion are filled with phase-change materials that undergo phase changes at different temperatures.

[0011] Furthermore, the base portion according to a preferred embodiment of the present invention has a fusion line formed in the remaining portion excluding the foam portion when the epithelium and the subcutaneous tissue are fused, and the shape of the foam portion is variable along the fusion line.

[0012] Furthermore, the plurality of form portions according to a preferred embodiment of the present invention are characterized by being formed in a triangular or parallelogram shape. [Effects of the Invention]

[0013] The cooling pad of the present invention has the effect of being able to be inserted inside a pillow to cool the user's head and neck area, and to provide a cooling pad that can maintain its cooling performance for a long period of time.

[0014] More specifically, the cooling pad of the present invention has the advantage that multiple lower foam sections and upper foam sections are each filled with a phase-change material that undergoes a phase change at different temperatures, allowing the user to selectively utilize them.

[0015] Furthermore, the cooling pad of the present invention has the advantage of being able to maintain its coolness for a longer period of time by reducing the rate of melting, as multiple lower foam sections and upper foam sections are each filled with a phase-change material that undergoes a phase change at different temperatures.

[0016] The effects of the present invention are not limited to those mentioned above, and any effects of the present invention not mentioned herein can be clearly understood by a person with ordinary skill in the art to which the present invention pertains from the following description. [Brief explanation of the drawing]

[0017] [Figure 1] This is a perspective view showing the configuration of a cooling pad according to a preferred first embodiment of the present invention. [Figure 2] This is a side view showing the configuration of a cooling pad according to a preferred first embodiment of the present invention. [Figure 3] This figure shows the process of manufacturing the base portion and foam portion of a cooling pad according to a preferred first embodiment of the present invention. [Figure 4] This is a perspective view showing the configuration of a cooling pad according to a preferred second embodiment of the present invention. [Figure 5]It is a side view showing the configuration of the cooling pad according to the preferred second embodiment of the present invention. [Figure 6] (a) is a side view showing the configuration of the cooling pad according to the preferred third embodiment of the present invention, and (b) is a view showing the folded state of the cooling pad of the present invention. [Figure 7] It is a figure showing the experimental result that the cooling time increases as the thickness of the foam part increases. [Figure 8] It is a figure showing the experimental result that the cooling time increases as the thickness of the foam part increases. [Figure 9] It is a figure showing the experimental result that the cooling time increases as the thickness of the foam part increases. [Figure 10] It is a figure showing the experimental result that the cooling time increases as the thickness of the foam part increases.

Mode for Carrying Out the Invention

[0018] Next, the terms used in this specification will be briefly explained, and the present invention will be specifically described.

[0019] The terms used in the present invention are selected as generally widely used terms as much as possible while considering the functions in the present invention, but this can change depending on the intention of those skilled in the art, precedents, the emergence of new technologies, etc. Therefore, the terms used in the present invention are not simply the names of terms, but are defined based on the meaning of the terms and the overall content of the present invention.

[0020] Throughout the specification, when a certain part is said to "include" a certain component, this means that, unless otherwise stated, it does not exclude other components and can further include other components.

[0021] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings, so that they can be easily implemented by a person with ordinary skill in the art to which the present invention pertains. However, the present invention can be embodied in a variety of different forms and is not limited to the embodiments described herein.

[0022] The specific details, including the problems to be solved by this invention, the means of solving those problems, and the effects of the invention, are included in the embodiments and drawings described below. The advantages and features of this invention, as well as the methods for achieving them, will become clear when you refer to the embodiments described in detail below, together with the accompanying drawings.

[0023] The present invention will be described in more detail below with reference to the attached drawings.

[0024] Referring to Figures 1 and 2, a cooling pad according to a preferred embodiment of the present invention includes a rectangular base portion 100 formed by fusing an epithelium 101 and a subcutaneous layer 102, and a foam portion 200 formed protruding from the base portion 100, wherein the foam portion 200 is formed in multiple units and filled with different phase-change materials.

[0025] The base portion 100 is manufactured as a rectangular flat plate by a pneumatic high-frequency fusion splicer and is formed integrally with the foam portion 200 by a mold during fusion. That is, the base portion 100 has a fusion line 130 formed in the remaining part excluding the foam portion 200 when the epidermis 101 and the underlayer 102 are fused, and the shape of the foam portion 200 is variable along the fusion line 130.

[0026] As an example, the plurality of foam portions 200 can be formed by chamfering the edges and can be formed in a triangular or parallelogram shape. That is, the plurality of foam portions 200 include a plurality of triangular foam portions 200-1 or parallelogram-shaped foam portions 200-2, so that even if the user's head position changes and the pressure acting on them changes, the plurality of foam portions 200 can easily deform in response and be supported.

[0027] In other words, the base portion 100 plays the role of supporting the foam portion 200 by closely fitting inside the pillow so that the foam portion 200 does not move when inserted inside the pillow. At this time, the plurality of triangular foam portions 200-1 or parallelogram-shaped foam portions 200-2 are evenly and uniformly arranged over the entire rectangular base portion 100.

[0028] Furthermore, the base portion 100 includes a lower base portion 110 and an upper base portion 120 that is laminated and fused to the lower base portion 110, and the foam portion 200 includes a lower foam portion 210 that protrudes downward from the lower base portion 110 and an upper foam portion 220 that protrudes upward from the upper base portion 120.

[0029] More specifically, referring to Figure 3, two epithelium 101 and two subcutaneous layers 102 are provided. The upper epithelium 101 and subcutaneous layers 102 are primarily fused together by a mold to form the upper base portion 120 and multiple upper foam portions 220. The lower epithelium 101 and subcutaneous layers 102 are primarily fused together by a mold to form the lower base portion 110 and multiple lower foam portions 210.

[0030] Furthermore, the multiple upper foam sections 220 and lower foam sections 210 are filled with different phase-change materials. The upper base section 120 and the lower base section 110 are then tertiarily fused together by a mold to join them. That is, the upper base section 120 and the lower base section 110 are fused together to form a flat plate, and the multiple lower foam sections 210 and the upper foam sections 220 are arranged symmetrically to each other. As an example, the primary and secondary fusion are performed by setting the pneumatic high-frequency fusion machine to 5KW, and the tertiary fusion is performed by setting the machine to 13KW to fuse four raw materials together to produce the base section 100.

[0031] Here, the plurality of lower foam sections 210 and upper foam sections 220 are filled with phase change materials that undergo a phase change at different temperatures. Referring to Table 1 below, for example, the plurality of lower foam sections 210 can be filled with a phase change material (PCM) that undergoes a phase change at 18°C, and the plurality of upper foam sections 220 can be filled with a phase change material that undergoes a phase change at 28°C. This allows the surface of the foam section 200 to be positioned above the pillow when the user selects a temperature from either the plurality of lower foam sections 210 or the upper foam section 220. In other words, it is configured so that the user can selectively adjust or change the temperature as needed.

[0032] Furthermore, although the multiple lower foam sections 210, where the phase change occurs at 18°C, are colder than the multiple upper foam sections 220, where the phase change occurs at 28°C, their cooling rate is faster. Therefore, the multiple upper foam sections 220 play a role in assisting the cooling temperature and time of the multiple lower foam sections 210.

[0033] For example, at room temperature of 27°C, the multiple upper foam sections 220 increase the time that the multiple lower foam sections 210 maintain their coolness. In other words, the combination of the multiple lower foam sections 210, which undergo a phase change at 18°C, and the multiple upper foam sections 220, which undergo a phase change at 28°C, allows the pillow to maintain its cooling time for a longer period. To put it another way, if only a single phase-change material that undergoes a phase change at 18°C ​​is filled, the phase-change material will melt at room temperature of 19°C. However, in the present invention, the phase-change material in the multiple upper foam sections 220, which undergoes a phase change at 28°C, absorbs the external temperature and reduces the rate at which the phase-change material in the multiple lower foam sections 210, which undergoes a phase change at 18°C, melts, thus providing the advantage of maintaining coolness for a longer period of time.

[0034] [Table 1]

[0035] Furthermore, the base portion 100 includes a folding line 140 that is formed across the central part of the base portion 100 when the lower base portion 110 and the upper base portion 120 are fused together. Therefore, the base portion 100 is configured to rotate and stack with respect to the folding line 140, facilitating storage.

[0036] The following describes in detail a cooling pad according to a second embodiment of the present invention with reference to the attached drawings. This embodiment differs from the first embodiment in that the thicknesses of the plurality of upper foam portions 220 are formed to be different from each other. The description of the first embodiment will be used to refer to the configuration that overlaps with this embodiment.

[0037] Referring to Figures 4 and 5, the plurality of upper foam portions 220 can be formed to have different thicknesses from each other. More specifically, the plurality of upper foam portions 220 consist of a plurality of first upper foam portions 221 formed in the upper central part of the base portion 100, a plurality of second upper foam portions 222 formed in the lower central part of the base portion 100 in a form symmetrical to the first upper foam portions 221 and formed to be thicker than the first upper foam portions 221, and a plurality of third upper foam portions 223 formed on both sides of the plurality of first upper foam portions 221 and second upper foam portions 222, that is, at both ends of the base portion 100 and formed to be thinner than the first upper foam portions 221.

[0038] Here, the plurality of first upper form sections 221 are arranged such that four triangular form sections 200-1 and four parallelogram-shaped form sections 200-2 form an overall trapezoidal shape, forming an inverted trapezoidal first area. The plurality of second upper form sections 222 are arranged in a manner symmetrical to the plurality of first upper form sections 221, forming a trapezoidal second area below the first area. The plurality of third upper form sections 223 are composed of two triangular form sections 200-1 and five parallelogram-shaped form sections 200-2, forming a pentagonal third area on both sides of the first and second areas, respectively, and are arranged on the upper surface of the base section 100, excluding the plurality of first upper form sections 221 and the second upper form sections 222.

[0039] In other words, the first area where the plurality of first upper foam portions 221 are arranged is formed in the area corresponding to the back of the user's head when the user lies down on the base portion 100 with the pillow, the second area where the plurality of second upper foam portions 222 are arranged is formed in the area corresponding to the user's neck, and the third area where the plurality of third upper foam portions 223 are arranged is formed in the area corresponding to the upper part of the user's shoulders. Therefore, when the user lies down with the pillow, the plurality of first upper foam portions 221 support the back of the user's head, the plurality of second upper foam portions 222 support the user's neck, and when the user lies on their side, the plurality of third upper foam portions 223 provide support, thereby providing comfort to the user.

[0040] Next, a cooling pad according to a third embodiment of the present invention will be described in detail with reference to the attached drawings. This embodiment differs from the first embodiment in that the folding lines 140 are formed by multiple lines. For configurations that overlap with this embodiment, refer to the description of the first embodiment.

[0041] Referring to Figure 6, the at least two folding lines 140 are spaced apart in such a way that they divide the base portion 100 into three equal parts. That is, the base portion 100 can be folded in such a way that it is stacked in three stages with respect to the folding lines 140. At this time, the plurality of foam portions 200 are divided into a first region A1, a second region A2, and a third region A3 with respect to the folding lines 140, and the foam portion 200 provided in the first region A1, the foam portion 200 provided in the second region A2, and the foam portion 200 provided in the third region A3 are each filled with a phase change material that undergoes a phase change at different temperatures.

[0042] For example, the phase change temperature of the phase change material filled in the foam portion 200 in the second region A2 can be set to be higher than the phase change temperature of the phase change material filled in the foam portion 200 in the first region A1, and lower than the phase change temperature of the foam portion 200 in the third region A3. In other words, the foam portions 200 in the first region A1, the second region A2, and the third region A3 are filled with phase change materials that undergo phase changes at different temperatures, which has the advantage that the user can select the region that is suitable for the current temperature from the first region A1, the second region A2, and the third region A3, fold it so that it is located at the top, and insert it into the inside of the pillow, thereby allowing for temperature selection and use. Furthermore, as can be seen from Figures 7 to 10, sample 3 (200g), which is filled with a larger amount of phase change material, maintains a lower temperature for a longer period of time compared to sample 1 (100g), which is filled with a relatively smaller amount of phase change material.

[0043] As a result, the cooling pad of the present invention has the advantage of being able to be inserted inside a pillow to cool the user's head and neck area, and to maintain its cooling performance for a long period of time.

[0044] Thus, the technical configuration of the present invention described above can be implemented in other specific forms by a person skilled in the art in which the present invention belongs without changing the technical idea or essence of the present invention.

[0045] Therefore, the embodiments described above are illustrative in all respects and not limiting, and the scope of the present invention is defined by the claims described below rather than by the detailed description above, and all modified or altered forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. Furthermore, the embodiments described above can be applied in combination. [Explanation of Symbols]

[0046] 100 Base section 101 Epithelium 102 Hypodermis 110 Lower base section 120 Upper form section 130 Fusion splice 140 folding lines 200 Form Section 200-1 Triangular foam section 200-2 Parallelogram-shaped foam section 210 Lower foam section 220 Upper form section 221 First upper form section 222 Second upper form section 223 Third upper form section A1 1st area A2 2nd area A3 Third area

Claims

1. A square-shaped base formed by the fusion of the epithelium and the subcutaneous tissue, A form portion that protrudes from the base portion, Includes, The aforementioned foam portion is formed from multiple units, each filled with a different phase-change material. A cooling pad characterized by the following features.

2. The base portion is Lower base section, The upper base portion is laminated and fused to the lower base portion, The aforementioned form portion is The lower form portion is formed to protrude downward from the lower base portion, Includes an upper foam portion that protrudes upward from the upper foam portion. The cooling pad according to claim 1.

3. The lower foam portion and the upper foam portion are filled with phase-change materials that undergo a phase change at different temperatures. The cooling pad according to claim 2.

4. The base portion is During the fusion of the epithelium and the subcutaneous tissue, a fusion line is formed in the remaining portion excluding the foam portion. The shape of the foam portion is variable along the fusion line. The cooling pad according to claim 1.

5. The aforementioned plurality of form portions are formed in a triangular or parallelogram shape. The cooling pad according to claim 4.

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