WO2016119314A1

WO2016119314A1 - Cooling head cap

Info

Publication number: WO2016119314A1
Application number: PCT/CN2015/076447
Authority: WO
Inventors: 张孝文; 方晓明; 宋丽娟; 张正国; 赵小龙
Original assignee: 张孝文
Priority date: 2015-01-27
Filing date: 2015-04-13
Publication date: 2016-08-04
Also published as: CN104644323A

Abstract

A cooling head cap, comprising a hollow head cap body; the head cap body is made of a phase-change fiber or is provided with a phase-change fiber; the phase-change fiber consists of a hollow fiber and a phase-change material filled in the hollow fiber; and a phase-change temperature of the phase-change material is 0-28ºC. The cooling head cap reduces the temperature based on phase-change heat absorption of the phase-change material, has a simple structure, and is convenient to use. In addition, the cooling head cap can be used for both a patient having a fever and a patient at an early stage of acute soft tissue injury requiring cold therapy, and can also treat muscle spasm, hyperpyrexia, heatstroke, etc. caused by neuralgia, neuritis, nervous excitation or muscle fatigue.

Description

Cooling headgear

Technical field

The invention relates to a head cover, in particular to a temperature reducing head cover.

Background technique

In daily life, fever is a common symptom after people get sick. When the body temperature rises, the body feels very uncomfortable; the body's persistent high fever can cause a variety of other diseases. Therefore, the treatment of fever needs to be timely and effective.

Current physical cooling measures commonly used in clinical practice include: cold wet compress, ice block, ice pillow or ice cap, warm water bath, alcohol rubbing bath, etc. However, there are many shortcomings in these traditional physical cooling methods. For example, it is inconvenient to use a cold wet compress to cool the towel frequently. It is difficult to control the alcohol concentration by alcohol wiping, and the high concentration of alcohol in a large area will irritate the skin and absorb it. The skin has a lot of moisture. Therefore, we need to continuously research and develop new cooling materials and cooling methods.

The phase change material is capable of changing its phase state within the phase transition range, absorbing and storing a large amount of heat in the form of latent heat, but it has not been found that a phase change material is used in the cooling head cover.

Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a headgear that is temperature-reducing and easy to use based on phase change material phase change overcoming the above-mentioned drawbacks of the prior art.

In order to achieve the above object, the technical solution adopted by the present invention is: a cooling head cover comprising a head cover body, the head cover body is made of phase change fiber or a phase change fiber is disposed in the head cover body, and the phase change fiber is The hollow fiber is composed of a phase change material filled in the hollow fiber, and the phase change temperature of the phase change material is 0 to 28 °C.

The phase change material stores or releases energy during the phase change process, and its temperature remains substantially unchanged. The phase change material with a melting temperature of 0 to 28 ° C is selected to be filled in the hollow fiber. When the head cover is worn, as long as the phase change material is melted, it will absorb heat and cool down, and the temperature of the head cover is in the range of 0 to 28 ° C.

As a preferred embodiment of the cooling head cover of the present invention, the phase change temperature of the phase change material is 19 ～ 28 ° C. When the melting temperature of the phase change material is 19-28 °C, the phase transition temperature is quite different from the human body temperature. When the person wears the cooling headgear, the phase change material is prone to phase change; in addition, the temperature of the headgear is basically maintained at 19 during the cooling process. In the range of ~28 °C, it can effectively absorb the excess heat of the human body without causing a series of negative physiological reactions such as excessive cold exposure, vasoconstriction and soreness of the skin.

As a preferred embodiment of the cooling head cover of the present invention, the phase change fiber is prepared by first heating the phase change material to a molten state; then immersing one end of the hollow fiber into the phase change material, and the other end of the hollow fiber. Insert one end of the rubber tube to seal the connection between the hollow fiber and the rubber tube; finally, connect the other end of the rubber tube to the vacuum pump to suck the phase change material into the hollow fiber.

As a preferred embodiment of the cooling head cover of the present invention, the phase change material is a fatty acid ester or a mixture of two or more fatty acids. During the long-term thermal cycle, fatty acid phase change energy storage materials have small changes in phase transition temperature and latent heat of phase change, and have good thermal stability. In addition, these materials are non-toxic, non-corrosive and undercooled. Small, no obvious phase separation phenomenon, etc., is a phase change energy storage material with excellent performance.

As a preferred embodiment of the temperature reducing head cover of the present invention, the phase change material is a capric acid/myristic acid molecular alloy (the capric acid/myristic acid molecular alloy refers to a molecular alloy composed of capric acid and myristic acid). The melting temperature of the niobic acid/myristic acid molecular alloy is 19.8 to 27.3 ° C; at a lower temperature, the niobic acid/myristic acid molecular alloy solidifies into a solid, and the niobic acid/myristic acid molecular alloy is higher than 19.8 ° C. It will melt and absorb heat, which will reduce the temperature. In addition, the tannic acid/myristic acid molecular alloy has good thermal stability, and its phase transition temperature and phase change heat still do not change much after repeated use.

As a preferred embodiment of the cooling head cover of the present invention, the citrate/myristic acid molecular alloy is prepared by weighing citric acid and myristic acid, placing them in a glass container, and sealing the glass container with a rubber stopper; The glass container is first placed in an 80-85 ° C incubator for 2.5 to 3 hours, and then placed in an ultrasonic generator, ultrasonically 95 to 100 s at a water bath temperature of 45 to 48 ° C; the glass container is taken out to be naturally cooled. A tannic acid/myristic acid molecular alloy can be obtained.

As a preferred embodiment of the temperature reducing head cover of the present invention, the filling ratio of the capric acid/myristic acid molecular alloy in the hollow fiber is 80 to 85%. When the filling ratio of the tannic acid/myristic acid molecular alloy in the hollow fiber is 80 to 85%, the tannic acid/myristic acid molecular alloy does not bleed out after melting, and the phase change fiber obtained thereby has a large latent heat of phase change.

As a preferred embodiment of the cooling head cover of the present invention, the phase change material is butyl stearate. The melting point of butyl stearate is 26 ° C, and after filling in the hollow fiber, the melting point remains unchanged.

As a more preferred embodiment of the cooling head cover of the present invention, the filling ratio of the butyl stearate in the hollow fiber is 85% to 90%. In the hollow fiber, the higher the filling rate of butyl stearate, the greater the latent heat of phase change of the phase change fiber; but when the filling rate of butyl stearate is higher than 90%, the liquid butyl stearate will ooze out. . When the filling ratio of butyl stearate in the hollow fiber is 85% to 90%, it can ensure that the liquid butyl stearate does not bleed out, and the phase change latent heat of the phase change fiber is large.

In a preferred embodiment of the cooling head cover of the present invention, the head cover body is a sandwich made of a double-layer material, and the head cover body is further provided with at least one pocket, and the pocket is provided with the phase change fiber. The pocket has the function of a fixed phase change fiber.

As a more preferred embodiment of the cooling head cover of the present invention, the head cover body is provided with a pocket; when worn, the pocket is located at the forehead position.

The method and principle of using the cooling head cover of the present invention is that before use, the cooling head cover of the present invention needs to be placed in a low temperature environment or placed in a refrigerator to solidify the phase change material in the head cover. When wearing the headgear, due to the high temperature of the human body, the phase change material in the phase change fiber melts and absorbs heat, thereby cooling the temperature; in the phase change process, the temperature of the phase change material is substantially unchanged.

The invention has the beneficial effects that the cooling head cover of the invention is based on the phase change endothermic temperature drop of the phase change material, has a simple structure and is convenient to use, and can be used not only for a fever patient, but also for an early patient suffering from acute soft tissue injury requiring cold therapy. It can also treat muscle spasms, high fever, heatstroke and so on caused by neuralgia, neuritis, nerve stimulation or muscle fatigue.

DRAWINGS

1 is a schematic structural view of a cooling head cover according to Embodiment 1 of the present invention;

2 is a schematic structural view of a cooling head cover according to Embodiment 2 of the present invention.

In the figure, 1 is the head cover body, and 2 is a pocket.

detailed description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in FIG. 1 , a cooling head cover according to an embodiment of the present invention includes a head cover body 1 , and the head cover body 1 is a sandwich layer composed of two layers of materials. The head cover body 1 is further provided with a plurality of pockets 2 , and the pockets 2 are respectively mounted therein. There is a phase change fiber; the phase change fiber is composed of a hollow fiber and a phase change material filled in the hollow fiber, and the phase change material is butyl stearate. Among them, the melting point of butyl stearate was 26 °C. The head cover body has a plurality of pockets, and each pocket is provided with phase change fibers, so that the phase change fibers can be fixed in the head cover body through the pockets. Of course, the phase change fibers can also be filled directly into the interlayer of the headgear body without the pockets.

The phase change fiber of the present embodiment is prepared by first heating butyl stearate to a molten state; then immersing one end of butyl stearate into the phase change material, and inserting the other end of the hollow fiber into one end of the rubber tube. The sealing port of the hollow fiber and the rubber tube is sealed; finally, the other end of the rubber tube is connected with a vacuum pump, and butyl stearate is sucked into the hollow fiber.

In order to ensure that the liquid butyl stearate does not bleed out and the phase change latent heat of the phase change fiber is large, the filling ratio of butyl stearate in the hollow fiber is 85% to 90%.

Example 2

As shown in FIG. 2, a cooling head cover according to an embodiment of the present invention includes a head cover body 1. The head cover body 1 is a sandwich made of a double-layer material, and the head cover body 1 is further provided with a pocket 2, and when worn, the pocket 2 is located. The forehead position; the pocket 2 contains phase change fibers, and the phase change fibers are composed of hollow fibers and a phase change material filled in the hollow fibers, and the phase change material is a niobic acid/myristic acid molecular alloy. The melting temperature of the capric acid/myristic acid molecular alloy is 19.8 to 27.3 °C.

Wherein, the preparation method of the citric acid/myristic acid molecular alloy is preferably: weighing citric acid and myristic acid, putting them into a glass container, sealing the glass container with a rubber stopper; and placing the glass container first in an 80-85 ° C incubator The inner heating is carried out for 2.5 to 3 hours, and then placed in an ultrasonic generator, and ultrasonically dried for 95 to 100 s at a water bath temperature of 45 to 48 ° C; the glass container is taken out and naturally cooled to obtain a niobic acid/myristic acid molecular alloy. .

The phase change fiber of the present embodiment is prepared by first heating a lanthanum/myristic acid molecular alloy to a molten state; then immersing one end of the hollow fiber in a lanthanum/myristic acid molecular alloy, and the other end of the hollow fiber. Insert one end of the rubber tube to seal the connection between the hollow fiber and the rubber tube; finally, the other part of the rubber tube One end is connected to a vacuum pump to draw a capric acid/myristic acid molecular alloy into the hollow fiber. Of course, we can also choose other methods to prepare phase change fibers, such as adsorption or blending.

In order to ensure that the niobic acid/myristic acid molecular alloy does not bleed out after melting, and the phase change latent heat of the phase change fiber obtained thereby is large, the filling ratio of the tannic acid/myristic acid molecular alloy in the hollow fiber is 80 ～. 85%.

It should be noted that the head cover body of the cooling head cover of the present invention can also be made of phase change fiber textile, and the method of weaving is prior art; wherein the phase change fiber is composed of hollow fiber and phase change material filled in the hollow fiber. The phase change material has a phase transition temperature of 0 to 28 °C. The phase change material may preferably be a capric acid/myristic acid molecular alloy or butyl stearate.

Before use, the cooling head cover of the invention needs to be placed in a low temperature environment or placed in a refrigerator to solidify the phase change material in the head cover.

It should be noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and are not intended to limit the scope of the present invention, although the present invention will be described in detail with reference to the preferred embodiments, The technical solutions of the present invention may be modified or equivalently substituted without departing from the spirit and scope of the technical solutions of the present invention.

Claims

A cooling head cover comprising a head cover body, wherein the head cover body is made of phase change fiber or a phase change fiber is disposed in the head cover body, and the phase change fiber is filled with hollow fiber and filled in the hollow fiber. A phase change material composition having a phase transition temperature of 0 to 28 ° C.
The cooling head cover according to claim 1, wherein the phase change fiber is prepared by first heating the phase change material to a molten state; then immersing one end of the hollow fiber into the phase change material, and hollow fiber The other end is inserted into one end of the rubber tube to seal the connection between the hollow fiber and the rubber tube; finally, the other end of the rubber tube is connected to the vacuum pump to draw the phase change material into the hollow fiber.
The temperature-lowering head cover according to claim 1 or 2, wherein the phase change material is a fatty acid ester or a mixture of two or more fatty acids.
The temperature-lowering headgear according to claim 3, wherein the phase change material is a tannic acid/myristic acid molecular alloy.
The cooling head cover according to claim 4, wherein the citrate/myristic acid molecular alloy is prepared by weighing tannic acid and myristic acid, placing them in a glass container, and sealing the glass container with a rubber stopper. The glass container is first placed in an 80-85 ° C incubator for 2.5 to 3 hours, and then placed in an ultrasonic generator, ultrasonically 95 to 100 s at a water bath temperature of 45 to 48 ° C; the glass container is taken out to make it The tannic acid/myristic acid molecular alloy can be obtained by natural cooling.
The temperature-lowering headgear according to claim 4, wherein the ceric acid/myristic acid molecular alloy has a filling ratio of 80 to 85% in the hollow fiber.
The temperature-lowering headgear according to claim 3, wherein said phase change material is butyl stearate.
The temperature-lowering headgear according to claim 7, wherein the filling ratio of the butyl stearate in the hollow fiber is from 85% to 90%.
The cooling head cover according to claim 1, wherein the head cover body is a sandwich made of a double-layer material, and the head cover body is further provided with at least one pocket, and the pocket is provided with the phase change fiber. dimension.
The temperature-lowering headgear according to claim 9, wherein said head cover body is provided with a pocket; and when worn, said pocket is located at the forehead position.