KR20230027538A - Heated neck band using phase change material - Google Patents

Abstract

The present invention relates to a thermal neckband using phase change material, with a simple structure that radiates warm heat from a main body filled with a phase change material when worn on a person's neck on a cold winter day and transmits warmth to the person's neck, which can prevent a neck area from being cold by cold air. In addition, since the thermal neckband using the phase change material according to the present invention generates heat from a tube body, the thermal neckband is effective for people who have stiff neck or neck-related diseases by wearing on his or her neck for fomentation.

Description

Heated neck band using phase change material}

The present invention relates to a thermal neckband using a phase change material, and more specifically, when worn on a person's neck on a cold winter day, warm heat is emitted from a main body filled with a phase change material to provide warmth to the person's neck. By transmitting, it relates to a thermal neck band using a phase change material, characterized in that it can prevent the neck area from feeling cold by cold air.

When a person goes out in winter when the weather is cold, the person's neck is exposed to the outside and feels cold as a part of the body that is directly exposed to the cold air. A scarf is worn to protect the body.

Such a scarf plays a role in keeping the body temperature of the neck part warm so that the body does not feel cold from the outside cold air, but there is a problem that even if the scarf is worn in winter when the cold wave is severe, the cold is felt.

Therefore, as a way to solve the above problems, various types of heating neckbands have recently been developed and applied for patents.

Patent Document 1 relates to a heating neckband having an activated carbon fiber porous heating element, and as shown in FIG. 1, a neckband supporter 10 made of a semicircular annular plate body; a porous heating element 20 made of activated carbon fibers; a vibrating body 30 attached and fixed to the central portion of the outer surface of the neck band support 10; A rechargeable battery 40 supplying DC power and; A neck band composed of a covering body 50 covering the neck band support body 10 is proposed.

In addition, Patent Document 2 relates to a heating neckband, and as shown in FIG. 2, a gap is provided between the conductive tube 10 in the form of a C-shaped ring through which the coated heating wire 20 penetrates the inside and the conductive tube 10. When heated, a plurality of beads 40 made of a material that emits far-infrared rays or negative ions and an outer skin 50 are covered as a whole to provide a heating neckband with a structure so that the body part and the touch are soft.

Unlike general scarves, the neckbands of Patent Documents 1 and 2 have an effect of transferring heat to the neck of a person by the heat emitted from the neckband itself, but a porous heating element made of activated carbon fiber (20 ) Or a neckband made of a complex structure that heats the heating wire 20 such as nichrome wire.

Therefore, the present applicant has completed the present invention by developing a thermal neckband using a simple structured phase change material, unlike the complex neckbands of Patent Documents 1 and 2 above.

Korean Patent Registration No. 10-1064200 (published on September 14, 2011) Heating neck band having a porous heating element of activated carbon fiber Domestic Registered Utility Model Publication No. 20-0481697 (Announced on November 01, 2016) Heating neckband

The present invention is a method to improve the above-described problems, and when worn on a person's neck on a cold winter day, warm heat is emitted from a tube body filled with a phase change material for heat storage, thereby providing warmth to the person's neck. As a simple structure for transmitting, the task is to provide a thermal neck band using a phase change material, characterized in that it can prevent the neck area from getting cold by cold air.

In the thermal neckband using a phase change material according to a preferred embodiment of the present invention, an accommodation space (S) is formed inside surrounded by an outer shell 110, and both ends are symmetrically arranged so that they are adjacent to each other in an annular shape for wrapping a person's neck. Tube body 100 of the structure; and a heating medium 200 accommodated in the receiving space S of the tube body 100.

The tube body 100 of the annular structure is a structure in which a plurality of concave cylindrical grooves 130 are formed along the circumference of the central portion 120, and the circular arc surface 140 formed concavely on the outside of the central portion 120 of the annular structure ) is formed with an inlet 150 into which the thermal medium 200 is injected, and after filling the thermal medium 200 into the receiving space S, the stopper 160 is closed and sealed by ultrasonic thermal fusion. to be

The shell 110 is characterized in that polypropylene (polypropylene).

In addition, the thermal medium 200 is a composition in which a phase change material for heat storage, a supercooling inhibitor, and a layer separation inhibitor are mixed, and the phase change material for heat storage is a hydrate compound phase change material or organic Characterized in that it is a compound phase change material.

The hydrate compound phase change material is selected from among sodium carbonate decahydrate, sodium acetate trihydrate, sodium borate decahydrate, sodium phosphate trihydrate 12 hydrate, or aluminum ammonium sulfate 12 hydrate and used in combination, and organic compound phase change material Silver acetic acid, glycerin, lauryl alcohol, myristyl alcohol, methyl palmitate, tetracosane, octacosane, lauric acid, myristic acid, palmitic acid, stearic acid, and pentaerythritol are selected and used in combination characterized by

The anti-supercooling agent is characterized in that one or more of urea or erythritol is selected and used in combination, and the layer separation inhibitor is selected from superabsorbent polymer, CMC (Carboxymethyl cellulose), or starch and used in combination. .

When the thermal neckband using a phase change material according to the present invention is worn on a person's neck on a cold winter day, warm heat is emitted from a main body filled with a phase change material for heat storage, thereby conveying warmth to the human body's neck. As a simple structure, it has the effect of preventing the neck area from getting cold by cold air.

In addition, the thermal neckband using the phase change material according to the present invention generates heat from the tube body, so that people with a stiff neck or neck-related disease can wear it on their neck and apply a compress.

1 and 2 are views for explaining a conventional heating neckband.
3 is a view showing a thermal neckband using a phase change material according to a preferred embodiment of the present invention from the front.
Figure 4 is a view showing the thermal neck band using the phase change material shown in Figure 3 in a plane.
5 is a view showing the inside of the A-A' side of the thermal neckband using the phase change material shown in FIG. 3 cut.
Figure 6 is a view showing the inside of the BB 'side of the thermal neck band using the phase change material shown in Figure 4 cut.
7 is a view showing a thermal neckband using a phase change material according to another preferred embodiment of the present invention from the front.
8 is a view showing a state in which a thermal neckband using a phase change material according to a preferred embodiment of the present invention is worn around a person's neck.

Hereinafter, a thermal neckband using a phase change material according to a preferred embodiment of the present invention will be described in detail based on the accompanying drawings, and in the drawings and detailed description, elements not directly related to the technical features of the present invention The detailed description and illustration of the drawings are omitted, and only the technical configuration related to the present invention has been briefly shown or described.

Among the terms described in the specification of the present invention, the terms 'accommodation' or 'filling' are terms meaning 'to confine or fill in a specific place or space', and are used interchangeably so that the flow of the context of the specification is natural Be careful.

As shown in FIGS. 3 to 6, the thermal neckband 1000 using a phase change material according to a preferred embodiment of the present invention has an accommodation space S formed inside surrounded by an outer shell 110, and both ends A tube body 100 having an annular structure for wrapping a person's neck by being symmetrically arranged so as to be adjacent thereto; and a heating medium 200 accommodated in the receiving space S of the tube body 100.

When the thermal neckband 1000 using a phase change material according to the present invention is put in a microwave oven for a certain period of time and heated, the phase change material (hereinafter referred to as 'PCM') melts from a solid phase to a liquid phase and changes its phase. When the tube body of the thermal neckband using a phase change material is warmed up by heat storage, warm heat is emitted from the tube body filled with the heating medium 200 when worn on a person's neck on a cold winter day, warming the person's neck. It works to transmit.

As shown in the accompanying drawings, the tube body 100 of the thermal neck band using a phase change material according to a preferred embodiment of the present invention has a structure in which both ends are symmetrically arranged so that both ends are adjacent to each other to surround a person's neck.

The tube body 100 of the annular structure has a structure in which a plurality of concave cylindrical grooves 130 are formed along the circumference of the center portion 120 .

If the tube body 100 does not have a plurality of concave cylindrical grooves 130 formed along the circumference of the central portion 120, when the heating medium 200 is filled in the accommodation space S, the tube body 100 ), both ends of the tube body 100 when the heating neck band 1000 using a phase change material is worn on a person's neck, If you open it to both sides with your hands, there is a problem that it does not open well.

In the present invention, a plurality of concave cylindrical grooves 130 are formed in the central portion 120 of the tube body 100 to prevent the occurrence of the above problems in advance.

In addition, in order to fill the heating medium 200 in the receiving space S of the tube body 100, the heating medium is placed on the circular arc surface 140 concavely formed outside the center 120 of the tube body 100 having an annular structure. An inlet 150 for injecting 200 is formed, the heating medium 200 is filled in the accommodation space S, and then the stopper 160 is closed and sealed by ultrasonic thermal fusion.

When the heating medium 200 accommodated in the receiving space S of the tube main body 100 is charged, the heating medium 200 accommodated in the receiving space S is heated using a microwave oven, all materials have Due to the thermal expansion of the phase change material filled in accordance with the temperature response thermal expansion phenomenon, there is a concern that the shell 110 of the tube body 100 may burst and be damaged. It is preferable to charge the heating medium 200 within the % range.

In the case where the amount of the heating medium 200 is less than the range defined above, the amount of the charged heating medium 200 is small and there is a concern that the thermal effect of the thermal neckband using the phase change material may be reduced. In case the expansion volume of the heating medium 200 exceeds the range of the accommodation space S, there is a concern that the shell 110 of the tube main body 100 bursts.

The material of the outer shell 110 is preferably polypropylene, which is environmentally friendly, harmless to the human body, and resistant to heat. 0.6~0.8mm is appropriate for the thickness of the polypropylene used to construct the outer shell. If it is too thick, heat conduction does not work well, and if it is too thin, it affects the strength maintenance of the product, making it difficult to sufficiently reach the desired function of the product.

In the case of using thermoplastic polyurethane or polyethylene as the material of the outer shell, when the thermal neckband 1000 using a phase change material is put in a microwave oven and heated, the outer shell 110 due to the weak heat resistance of the material itself It may not withstand the heat and may melt.

Meanwhile, the thermal medium 200 is formed by selecting one or more of hydrate compound phase change materials and organic compound phase change materials.

The phase change material is a heat storage material that preserves heat and serves to maintain the heat of the heating neckband 1000 using the phase change material heated using a microwave oven.

The hydrate compound phase change material is a compound containing water bound to the crystals of inorganic salt compounds in a fixed ratio. The water contained in these molecules is called crystal water, and its types are specifically sodium carbonate decahydrate, It is preferable to select one or more of sodium acetate trihydrate, sodium borate decahydrate, trisodium phosphate dodecahydrate, or aluminum ammonium sulfate dodecahydrate and use them in combination.

For reference, the melting point of the hydrate compound phase change material used in the present invention is as described in [Table 1] below, but is not necessarily limited to the melting point described in [Table 1] below, and the temperature of the melting point varies depending on the manufacturer. There may be some differences.

compound name molecular formula Melting point (℃) Sodium Carbonate Decahydrate Na ₂ CO ₃ 10H ₂ O 33 Sodium Acetate Trihydrate CH ₃ COONa 3H ₂ O 58 Sodium borate decahydrate Na ₂ B ₄ O ₇ 10H ₂ O 60 Trisodium Phosphate Dodecahydrate Na ₃ PO ₄ 12H ₂ O 75 Aluminum Ammonium Sulphate Dodecahydrate (NH ₄ )Al(SO ₄ ) ₂ 12H ₂ O 83

The organic compound phase change material is specifically acetic acid, glycerin, lauryl alcohol, myristyl alcohol, methyl palmitate, tetracosane, octacosane, lauric acid, myristic acid, palmitic acid, stearic acid, pentaeryth It is preferable to select one or more of them from litol and use them in combination.

For reference, the melting point of the organic compound phase change material used in the present invention is as described in [Table 2] below, but is not necessarily limited to the melting point described in [Table 2] below, and at the temperature of the melting point according to the manufacturer. There may be some differences.

compound name molecular formula Melting point (℃) acetic acid CH₃COOH 16.6 glycerin C ₃ H ₅ (OH) ₃ 17.8 lauryl alcohol CH ₃ (CH ₂ ) ₁₁ OH 22 myristyl alcohol CH ₃ (CH ₂ ) ₁₃ OH 38 methyl palmitate CH ₃ (CH ₂ ) ₁₄ COOCH ₃ 30 tetracosane CH ₃ (CH ₂ ) ₂₂ CH ₃ 50 octacoseine CH ₃ (CH ₂ ) ₂₆ CH ₃ 61 lauric acid CH ₃ (CH ₂ ) ₁₀ COOH 43 myristic acid CH ₃ (CH ₂ ) ₁₂ COOH 54 palmitic acid CH ₃ (CH ₂ ) ₁₄ COOH 62.9 stearic acid CH ₃ (CH ₂ ) ₁₆ COOH 69.3 pentaerythritol (CH ₂ OH) ₄ C 260.5

For reference, the phase change material (PCM) used in the present invention is a material that has the characteristics of accumulating a large amount of thermal energy or releasing stored thermal energy through heat absorption and radiation, to which the phase change material (PCM) is applied. In order to warm the neckband, when heated using a microwave oven, the melting point of the phase change material (PCM) accommodated in the thermal neckband using the phase change material is as described in [Table 1] and [Table 2], inorganic above the melting point of the hydrate At the temperature, the inorganic salt hydrate is melted and changed to a liquefied state, and heat is stored. At this time, the heating temperature of the microwave oven may be appropriately adjusted according to the heating temperature range of the heating neckband using the phase change material.

The supercooling inhibitor is a material that is mixed for freezing point control to prevent the phase change material (PCM) from being supercooled by the outside air in cold winter weather. .

For reference, the melting point of the organic compound as the supercooling inhibitor is as described in [Table 3] below, but it is not necessarily limited to the melting point described in [Table 3] below, and there may be some differences in the temperature of the melting point depending on the manufacturer. .

compound name molecular formula Melting point (℃) Element CH ₄ N ₂ O 133 erythritol C ₄ H ₁₀ O ₄ 121

The layer separation inhibitor acts to prevent the layer separation phenomenon that occurs when the phase change material undergoes a phase change from solid to liquid depending on the temperature. It is preferable to select and use a mixture of species or more.

Superabsorbent polymer is a polymer compound that has a three-dimensional network structure and has a large amount of hydrophilic groups. It is a resin that is insoluble in water and can absorb a large amount of water. there is.

There are various materials such as polyacryl amide, polyacrylic acid, polymethacrylic acid, polyethylene oxide, and polyvinyl alcohol for superabsorbent polymer. .

CMC (Carboxymethyl cellulose) is a water-soluble material that dissolves well in water and acts as a thickener that increases the viscosity of gel-type materials, so when water molecules are separated from inorganic salt hydrates, it increases the viscosity.

Starch is mixed with water molecules separated from the inorganic salt hydrate and gelatinizes, resulting in viscosity and gelation of the water molecules. It acts to prevent this from happening.

Various types of starch that can be used in the present invention may be used, such as sweet potato starch, potato starch, corn starch, and wheat flour.

As described above, when the heating medium 200 accommodated in the receiving space S of the tube body 100 is heated using a microwave oven, water molecules of inorganic salt hydrate are heated and absorbed into the superabsorbent polymer, and some is mixed with CMC (Carboxymethyl cellulose) and starch to accumulate heat as it gels.

In general, in sub-zero weather in winter, the temperature of the thermal neck band 1000 using a phase change material is heated to 50 to 60 ° C, and then the tube body 100 is heated by the thermal medium 200 that accumulates heat when worn on the neck. ) The neck can be warmed or steamed by the heat emitted from the tube body 100, and when the tube body 100 is cooled, it can be heated again using a microwave oven and then repeatedly reused.

In the present invention, the composition ratio of the heating medium 200 is 75% to 95% of the phase change material, 3% to 15% of the supercooling prevention and freezing point control agent, and 2% to 10% of the layer separation inhibitor, based on the total composition. It is preferred to mix % parts by weight.

The composition ratio of the mixed composition of the heating medium 200 defined above is suitably limited so that the thermal storage temperature of the thermal neckband 1000 using the phase change material according to the present invention is 50 to 70 ° C. It is not necessarily limited only to the composition ratio, and may be appropriately adjusted according to the user's needs or the manufacturer's needs according to the operating temperature of the thermal neckband 1000 using the phase change material. For the smooth functioning of the product, the heat storage temperature is 50~70℃, but the functional temperature used by the user is preferably 35~45℃.

Therefore, when the thermal neckband using a phase change material according to a preferred embodiment of the present invention is worn on a person's neck on a cold winter day, warm heat is emitted from the main body filled with the phase change material to provide warmth to the person's neck. It is possible to prevent the area around the neck from getting cold by cold air, and since heat is generated from the tube body in the heating neckband using the phase change material according to the present invention, people with a stiff neck or a neck-related disease There is an effect that can be worn on the neck and steamed.

As described above, the thermal neckband using the phase change material according to the preferred embodiment of the present invention has been described above and the drawings are shown, but this is only an example and is within the scope of not departing from the technical spirit of the present invention. It will be well understood by those skilled in the art that various changes and modifications are possible in

1000: Thermal neckband using phase change material
100: tube body 110: outer skin
120: center 130: circumferential groove
140: arc surface 150: inlet
160: Stopper S: Receiving space

Claims (10)

An accommodation space (S) is formed inside the outer shell 110, and both ends are symmetrically arranged so that they are adjacent to each other to wrap the tube body 100 in an annular structure for covering a person's neck; and
a heating medium 200 accommodated in the receiving space S of the tube body 100;
Thermal neck band using a phase change material, characterized in that consisting of.
The method of claim 1,
The annular structure of the tube body 100 is a thermal neck band using a phase change material, characterized in that a structure in which a plurality of concave cylindrical grooves 130 are formed along the circumference of the central portion 120.
The method of claim 1,
In the annular tube body 100, an inlet 150 through which the heating medium 200 is injected is formed on an arc surface 140 concavely formed outside the central portion 120 of the annular structure,
A thermal neck band using a phase change material, characterized in that after filling the heating medium 200 in the accommodation space (S), the stopper 160 is closed, and sealed by high-frequency bonding.
The method of claim 1,
The outer shell 110 is a thermal neck band using a phase change material, characterized in that polypropylene.
The method of claim 1,
The thermal medium 200 is a thermal neckband using a phase change material, characterized in that a composition in which a phase change material for heat storage, a supercooling inhibitor, and a layer separation inhibitor are mixed.
The method of claim 5,
The thermal neckband using a phase change material, characterized in that the phase change material for heat storage is a hydrate compound phase change material or an organic compound phase change material.
The method of claim 6,
The hydrate compound phase change material is sodium carbonate decahydrate, sodium acetate trihydrate, sodium borate decahydrate, tribasic sodium phosphate 12 hydrate or aluminum ammonium sulfate 12 hydrate, characterized in that one or more are selected and used in combination. Thermal neckband using a transforming material.
The method of claim 6,
The organic compound phase change material is one or more of acetic acid, glycerin, lauryl alcohol, myristyl alcohol, methyl palmitate, tetracosane, octacosane, lauric acid, myristic acid, palmitic acid, stearic acid, and pentaerythritol. A thermal neckband using a phase change material, characterized in that the above is selected and mixed.
The method of claim 5,
The supercooling inhibitor is a thermal neckband using a phase change material, characterized in that one or more selected from urea or erythritol and used in combination.
The method of claim 5,
The layer separation preventing agent is a thermal neckband using a phase change material, characterized in that one or more selected from superabsorbent polymer, CMC (Carboxymethyl cellulose) or starch and used in combination.

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