Passive multi-zone multi-temperature nonlinear phase change refrigeration garment

Abstract

The invention relates to a passive multi-zone multi-temperature nonlinear phase change refrigeration garment, which is divided into six zones according to contact parts of the garment and a human body, namely a head zone, a trunk zone, an arm zone, a hand zone, a leg zone and a foot zone, wherein the head area, the trunk area, the arm areas and the hand areas form the coat connected with the hat and the gloves, and the hat and the gloves in the coat are respectively connected with a main body of the coat through zippers; the leg area forms a lower trousers; the foot areas form a pair of socks; according to the non-linear phase-change refrigeration garment, composite phase-change temperature-adjusting fabrics with corresponding phase-change temperatures are selected for splicing according to refrigeration requirements of different partitions. According to the nonlinear phase-change refrigeration garment, regionalized heat management is carried out on hot areas of different parts of a human body, and the type selection and thickness of the phase-change material of each garment partition are designed according to the calorific value of the human body, so that the differential refrigeration power requirements of different areas of the human body are met.

Description

Technical Field

[0001] The present invention relates to the technical field of personal thermal management, and in particular to a passive multi-zone multi-temperature nonlinear phase change cooling suit. Background Art

[0002] Due to the influence of human metabolism and normal life activities, the surface temperatures of different parts such as the trunk and limbs are different, and the ideal preset temperatures to meet their thermal comfort are also different. There is a "barrel effect" in the thermal comfort of the human body, that is, the part with the worst local thermal comfort determines the overall thermal sensation. And the local thermal sensation weight of the trunk area with a larger body surface area is the largest, followed by the head, limbs, hands and feet. The cold and hot sensations of various parts of the human body are uneven, and will change in real time with the activity state of the human body. Traditional cooling clothing with a single uniform temperature cannot meet the needs of the human body, and may even cause some parts to be too cold or too hot. Therefore, it is of great significance to partition the body surface according to the required temperature of different parts of the human body and set different temperature control targets for thermal management to improve the thermal comfort of the human body.

[0003] In addition to differences in structure and function, due to differences in the distribution of skin cold and hot receptors, different parts of the human body have different thermal sensitivities to temperature changes, and their zoning is more refined and complex, with asymmetry of cold and heat. The feet and calves are less sensitive, while the neck, back, thighs and other parts are 2-3 times more sensitive to cold and hot stimuli; the back of the torso is more sensitive than the front, and the front mid-abdomen is more sensitive than the chest. The appropriate zoning temperature of cooling clothing is the prerequisite for ensuring local and overall comfort of the person.

[0004] The trunk covers the main organs, accounting for 40.1% of the skin surface area and 68.7% of the heat. The head has a small area, but produces 19.5% of the heat, and the heat distribution is the most dense; while the limbs produce less heat, but the skin area is larger. That is, different parts of the human body have different surface areas and different heat generation, and there is no positive correlation between the two. Therefore, different parts require different cooling temperatures, and the cooling power of the cooling suit is also nonlinear.

[0005] On the other hand, existing active cooling clothing usually requires active energy such as batteries to drive the cooling system. At the same time, its cooling power and cooling time are limited by the battery. At the same time, the battery also increases the weight and volume of the clothing, affecting the wearing comfort. Passive cooling clothing does not consume energy, which greatly reduces the energy cost of cooling clothing. At the same time, there is no need to carry batteries, so it is light, comfortable and safe.

[0006] Therefore, how to perform regional thermal management of heat zones in different parts of the human body is a technical problem that needs to be solved in this field. Summary of the invention

[0007] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a passive multi-zone multi-temperature nonlinear phase change cooling clothing to overcome the problem of insufficient personalized temperature control capabilities in the existing personal thermal management clothing technology.

[0008] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0009] The present invention provides a passive multi-zone multi-temperature nonlinear phase change cooling clothing, wherein the nonlinear phase change cooling clothing is divided into six zones according to the contact parts between the clothing and the human body, namely, the head zone, the trunk zone, the arm zone, the hand zone, the leg zone and the foot zone;

[0010] The head area, the torso area, the arm area and the hand area constitute a hooded and gloved coat, and the hood and the gloves in the coat are respectively connected to the main body of the coat through a zipper;

[0011] The leg area constitutes the lower garment trousers;

[0012] The foot region forms a pair of socks;

[0013] In the nonlinear phase change refrigeration clothing, composite phase change temperature regulating fabrics with corresponding phase change temperatures are selected for splicing according to the refrigeration requirements of different zones.

[0014] In the nonlinear phase change cooling clothing provided by the present invention, the contact parts of the clothing with the human body are divided into corresponding zones, namely the head zone, the trunk zone, the arm zone, the hand zone, the leg zone and the foot zone, so as to achieve accurate temperature control of different parts of the body. In order to cater to the dressing habits of different people and different occasions, the hat and gloves are both detachable. In the present invention, according to the demand for cooling power of different zones, composite phase change temperature regulating fabrics with corresponding phase change temperatures are selected for splicing, which can more accurately control the temperature of each zone, thereby providing the wearer with a more comfortable and personalized thermal management experience.

[0015] Preferably, the composite phase change temperature regulating fabric is woven from composite phase change fibers, or is blended from composite phase change fibers and other fibers.

[0016] Preferably, the other fibres comprise cotton and / or wool.

[0017] Preferably, the raw material for preparing the composite phase change fiber includes phase change material.

[0018] Preferably, the phase change material includes any one of polyethylene glycol, paraffin or normal alkanes, or a combination of at least two thereof.

[0019] In the present invention, the same refrigeration clothing is preferably designed and combined with the same type of phase change materials with different phase change temperatures. For example, when polyethylene glycol is used as the phase change material, there are polyethylene glycols with various phase change temperatures such as 18°C, 20°C, 22°C, and 25°C. For example, PEG-400, PEG-600 and PEG-1000 can be used at the same time and their mass ratio can be adjusted to meet different phase change temperatures; or at least two different phase change materials can be selected and used in combination to meet different phase change temperatures.

[0020] Preferably, the raw materials for preparing the composite phase change fiber also include spinning encapsulation materials.

[0021] Preferably, the spinning envelope material includes any one of polyvinyl alcohol, polyacrylonitrile or polyvinyl pyrrolidone, or a combination of at least two thereof.

[0022] Preferably, when the phase change material is polyethylene glycol, the phase change temperature of the composite phase change temperature regulating fabric is regulated by regulating the blending ratio of polyethylene glycols with different molecular weights in the phase change material.

[0023] Preferably, the raw materials for preparing the composite phase change fiber also include an enhanced thermal conductivity agent.

[0024] Preferably, the enhanced thermal conductivity agent comprises metal nanoparticles.

[0025] Preferably, the preparation method of the composite phase change fiber includes any one of a centrifugal spinning method, a blended electrospinning method or a coaxial electrospinning method.

[0026] Preferably, in the nonlinear phase change cooling clothing, the thickness of the composite phase change temperature regulating fabric used in each zone is regulated according to the cooling capacity required for thermal comfort in different zones.

[0027] Preferably, in the nonlinear phase change cooling suit, each partition includes a refined partition, and the thickness of the composite phase change temperature regulating fabric used in each refined partition is adjusted to control the cooling power of each refined partition.

[0028] Preferably, the refined subareas of the trunk area include the neck area, the upper chest area of ​​the trunk, the lower abdominal area of ​​the trunk and the back area.

[0029] Preferably, the refined subareas of the torso area further include pocket areas.

[0030] Preferably, the fabric and thickness of the pocket area are the same as those of the lower abdominal area of ​​the trunk.

[0031] Preferably, the arm region includes an upper arm region and a lower arm region.

[0032] Preferably, the hand area includes a back of hand area and a palm area.

[0033] Preferably, the leg region includes a thigh region, a calf region and a hip region.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] (1) The nonlinear phase change cooling clothing provided by the present invention can customize the temperature of multiple zones of the thermal management clothing according to the thermal comfort requirements of different parts of the human body, thereby improving human comfort.

[0036] (2) The nonlinear phase change cooling clothing provided by the present invention can achieve effective passive cooling without any energy consumption. Compared with traditional thermal management clothing, it does not need to carry a power supply.

[0037] (3) The raw materials of the nonlinear phase change refrigeration clothing provided by the present invention are conventional products that are easily found on the market, do not need to be customized, are low-cost, and are non-toxic and harmless.

[0038] (4) The nonlinear phase change cooling suit provided by the present invention can be customized in terms of temperature and thickness according to different metabolic and heat production conditions of different people, such as anthropometric data, gender, age, activity level (lying down, sitting, standing, walking, running, sports, etc.). For example, the phase change temperature of each partition of the cooling suit can be controlled by the blending ratio of polyethylene glycol with different molecular weights. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 Schematic diagram of the front structure (left) and the back structure (right) of the upper jacket of the passive multi-zone multi-temperature nonlinear phase change cooling clothing provided by Examples 1-2 of the present invention;

[0040] Figure 2 Schematic diagram of the front structure (left) and the back structure (right) of the lower trousers of the passive multi-zone multi-temperature nonlinear phase change cooling clothing provided by Example 1-2 of the present invention;

[0041] Figure 3 It is a schematic structural diagram of socks in a passive multi-zone multi-temperature nonlinear phase change cooling suit provided by Embodiment 1-2 of the present invention;

[0042] Figure 4 Schematic diagram of the front structure (left) and the back structure (right) of the upper jacket of the passive multi-zone multi-temperature nonlinear phase change cooling clothing provided in Example 3 of the present invention;

[0043] Figure 5 Schematic diagram of the front structure (left) and the back structure (right) of the lower trousers of the passive multi-zone multi-temperature nonlinear phase change cooling clothing provided in Example 3 of the present invention;

[0044] Figure 61 is a schematic structural diagram of socks in a passive multi-zone multi-temperature nonlinear phase change cooling suit provided by Example 3 of the present invention;

[0045] In the figure, 1- fabric for head area; 2- fabric for trunk area; 3- fabric for arm area; 4- fabric for hand area; 5- fabric for pocket; 6- fabric for leg area; 7- fabric for foot area; 8- fabric for neck area; 9- fabric for upper chest area of ​​trunk; 10- fabric for lower abdomen area of ​​trunk; 11- fabric for pocket with detailed partitions; 12- fabric for back area; 13- fabric for upper arm area; 14- fabric for forearm area; 15- fabric for back of hand area; 16- fabric for palm area; 17- fabric for thigh area; 18- fabric for calf area; 19- fabric for hip area; 20- fabric for foot with detailed partitions. DETAILED DESCRIPTION

[0046] The technical solution of the present invention is further described below by specific implementation methods. It should be understood by those skilled in the art that the embodiments are only used to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0047] In a specific embodiment, the present invention provides a passive multi-zone multi-temperature nonlinear phase change cooling clothing, which is divided according to the contact parts of the clothing with the human body, including 6 partitions, namely, head zone, torso zone, arm zone, hand zone, leg zone and foot zone, wherein the head zone, torso zone, arm zone and hand zone constitute an upper jacket with a hood and gloves, the hood and gloves in the upper jacket are respectively connected to the main body of the upper jacket by a zipper, the leg zone constitutes lower trousers, and the foot zone constitutes a pair of socks, and in the nonlinear phase change cooling clothing, composite phase change temperature regulating fabrics with corresponding phase change temperatures are selected for splicing according to the cooling needs of different partitions.

[0048] In the present invention, the parts of the clothing that come into contact with the human body are divided into corresponding zones, namely the head zone, torso zone, arm zone, hand zone, leg zone and foot zone, so as to achieve accurate temperature control of different parts of the body. In order to cater to the dressing habits of different people and different occasions, the hat and gloves are removable. In the present invention, according to the demand for cooling power of different zones, composite phase change temperature regulating fabrics with corresponding phase change temperatures are selected for splicing, which can more accurately control the temperature of each zone, thereby providing the wearer with a more comfortable and personalized thermal management experience.

[0049] In some of the embodiments, the composite phase change temperature regulating fabric is woven from composite phase change fibers, or is blended from composite phase change fibers and other fibers.

[0050] In some of these embodiments, the other fibers include cotton and / or wool.

[0051] In the present invention, by using composite phase change fibers and blending with cotton yarn, wool, etc., the fabric not only has the temperature regulating function of the phase change material, but also has sweat absorption and breathable perspiration performance, thereby meeting the comfort requirements of different groups of people.

[0052] In some embodiments, the raw material for preparing the composite phase change fiber includes phase change material.

[0053] In some embodiments, the phase change material includes any one of polyethylene glycol, paraffin or normal alkane, or a combination of at least two thereof.

[0054] In some embodiments, the raw materials for preparing the composite phase change fiber also include spinning encapsulation materials.

[0055] In some embodiments, the spinning envelope material includes any one of polyvinyl alcohol, polyacrylonitrile or polyvinyl pyrrolidone, or a combination of at least two thereof.

[0056] In some of the embodiments, when the phase change material is polyethylene glycol, the phase change temperature of the composite phase change temperature regulating fabric is regulated by regulating the blending ratio of polyethylene glycols with different molecular weights in the phase change material.

[0057] In the present invention, when polyethylene glycol is used as the phase change material, its phase change temperature can be regulated according to the principle that its phase change temperature is closely related to its molecular weight. Generally speaking, as the molecular weight of polyethylene glycol increases, its phase change temperature will also increase accordingly. Therefore, by selecting polyethylene glycols of different molecular weights for use in combination, the phase change temperature can be regulated. Among them, the mixing method of polyethylene glycols of different molecular weights can adopt conventional methods in the art, such as hot melt blending.

[0058] In some embodiments, the raw materials for preparing the composite phase change fiber also include an enhanced thermal conductivity agent.

[0059] In some embodiments, the enhanced thermal conductivity agent includes metal nanoparticles.

[0060] In the present invention, the thermal conductivity enhancing agent may be any metal nanoparticles commonly used in refrigeration clothing in the art, such as nano-Ag, nano-TiO 2 Or nano Al 2 O 3 The amount of metal nanoparticles added is generally determined based on two aspects. On the one hand, the appropriate addition of metal nanoparticles can improve the thermal conductivity, thereby achieving a good refrigeration effect. On the other hand, if the amount of metal nanoparticles added is too high, it may cause the mechanical properties of the fiber, such as strength and toughness, to decrease, affecting the phase change enthalpy value. Therefore, the amount of metal nanoparticles added should not be too much.

[0061] In some embodiments, the preparation method of the composite phase change fiber includes any one of centrifugal spinning, blended electrospinning or coaxial electrospinning.

[0062] In the present invention, the preparation method of the composite phase change fiber is a conventional method in the art, and the spinning parameters can adopt conventional parameters in the art. For example, by using centrifugal spinning or blended electrospinning, the phase change material, spinning encapsulation material and enhanced thermal conductivity can be mixed and spun. For example, by using coaxial electrospinning, the phase change material is used as the core layer solution, and the spinning encapsulation material is used as the shell layer solution, and the enhanced thermal conductivity is selectively added to the core layer solution or the shell layer solution for spinning.

[0063] In some of the embodiments, the nonlinear phase change cooling clothing adjusts the thickness of the composite phase change temperature regulating fabric used in each zone according to the cooling capacity required for thermal comfort of different zones.

[0064] In the present invention, the thickness of the composite phase-change temperature-regulating fabric is adjusted so that the cooling clothing can meet the needs of different parts of the human body for cooling power, that is, the higher the required cooling capacity, the higher the required cooling power, and the thicker the fabric. For example, the head and trunk areas usually produce higher heat, so thicker composite phase-change temperature-regulating fabrics can be used, while the hands and feet produce lower heat, so thinner fabrics can be used. Specifically, the thickness of the composite phase-change temperature-regulating fabric can generally be obtained by calculation. First, the cooling capacity required to maintain thermal comfort in each partition is determined based on the metabolic heat production of each partition and the human body-clothing-environment heat exchange (the unit is generally J); then, the mass of the fabric is calculated based on the cooling capacity and the enthalpy value of the composite phase-change temperature-regulating fabric (the unit is generally J / g); the volume of the fabric is calculated based on the mass of the fabric and its density; finally, the thickness of the fabric is calculated based on the volume of the fabric and the surface area of ​​the partitioned fabric.

[0065] In some of the embodiments, in the nonlinear phase change cooling clothing, each partition includes a refined partition, and the thickness of the composite phase change temperature regulating fabric used in each refined partition is adjusted to control the cooling power of each refined partition.

[0066] In some of these embodiments, the refined sub-regions of the torso region include a neck region, an upper chest region of the torso, a lower abdominal region of the torso, and a back region.

[0067] In some of these embodiments, the refined subdivision of the torso region also includes a pocket region.

[0068] In some of these embodiments, the pocket area is made of the same fabric and thickness as the lower abdominal area of ​​the torso.

[0069] In some embodiments, the arm region includes an upper arm region and a lower arm region.

[0070] In some embodiments, the hand area includes a back of hand area and a palm area.

[0071] In some embodiments, the leg region includes a thigh region, a calf region, and a buttocks region.

[0072] In the present invention, the structure of each partition is further refined according to the different sensitivities of different parts of the human body to cold and hot sensations, thereby further improving the comfort of the wearer.

[0073] The technical effects of the present invention are further illustrated by Examples 1-3 below.

[0074] Example 1

[0075] This embodiment provides a passive multi-zone multi-temperature nonlinear phase change cooling clothing, such as Figure 1 , Figure 2 and Figure 3 As shown, the nonlinear phase change cooling clothing is divided into 6 zones according to the contact parts between the clothing and the human body, namely, the head zone, the trunk zone, the arm zone, the hand zone, the leg zone and the foot zone, wherein the head zone, the trunk zone, the arm zone and the hand zone constitute an upper coat with a hood and gloves, the hood and the gloves in the upper coat are respectively connected to the main body of the upper coat through a zipper, the leg zone constitutes lower trousers, and the foot zone constitutes a pair of socks;

[0076] The above 6 partitions are respectively provided with head area fabric 1, torso area fabric 2 (pocket fabric 5 is provided on torso area fabric 2, and the two fabrics are the same), arm area fabric 3, hand area fabric 4, leg area fabric 6 and foot area fabric 7, and according to the cooling power requirements of the above 6 partitions, the corresponding required phase change temperatures are 19°C, 21°C, 22°C, 20°C, 23°C and 25°C respectively, so different partitions use different composite phase change temperature regulating fabrics to meet the personalized cooling requirements of each partition;

[0077] Specifically, the composite phase-change temperature-regulating fabric is woven from composite phase-change fibers. The raw materials for preparing the composite phase-change fibers include polyethylene glycol as a phase-change material, polyvinyl alcohol as a spinning encapsulation material, and nano-Ag as an enhanced thermal conductivity agent. The polyethylene glycol is PEG-600 and PEG-1000 used simultaneously, and their mass ratio is adjusted so that the phase change temperatures of the composite phase-change temperature-regulating fabric are 19°C, 21°C, 22°C, 20°C, 23°C and 25°C, respectively.

[0078] When a person is at rest, he is at the basal metabolic level, while when he is active indoors, the activity intensity is low and the metabolism is at a low level. The basal metabolic intensity can also be used as a reference. At this time, the body heat is mainly concentrated in the head area and the trunk area. Therefore, according to the cooling capacity required for thermal comfort in different partitions, the thickness of the composite phase change temperature regulating fabric used in each partition is adjusted. The thickness calculation method includes: first, the required cooling capacity is determined according to the metabolic heat production of each partition and the heat exchange between the human body, clothing and the environment (the unit is generally J); then, the mass of the fabric is calculated according to the cooling capacity and the enthalpy value of the composite phase change temperature regulating fabric (the unit is generally J / g); the volume of the fabric is calculated according to the mass of the fabric and its density; finally, the thickness is calculated according to the volume of the fabric and the surface area of ​​the partition fabric. Among them, the thickness of the head area fabric 1, the trunk area fabric 2, the arm area fabric 3, the hand area fabric 4, the leg area fabric 6 and the foot area fabric 7 are respectively recorded as a 1 , b 1 , c 1 , d 1 , e 1 and f 1 , where the thickness of fabric 1 in the head area and fabric 2 in the torso area is higher, providing higher cooling power to match the higher cooling capacity required in this area. Since the cooling capacity required for thermal comfort of different groups of people varies significantly, the specific value of the thickness can be further determined by big data simulation analysis.

[0079] Example 2

[0080] This embodiment provides a passive multi-zone multi-temperature nonlinear phase change cooling clothing, such as Figure 1 , Figure 2 and Figure 3 As shown, the nonlinear phase change cooling clothing is divided according to the contact parts between the clothing and the human body, including 6 partitions, namely, the head area, the trunk area, the arm area, the hand area, the leg area and the foot area, wherein the head area, the trunk area, the arm area and the hand area constitute a hooded coat with gloves, the hood and the gloves in the coat are respectively connected to the main body of the coat through a zipper, the leg area constitutes a pair of trousers, and the foot area constitutes a pair of socks; the above 6 partitions are respectively provided with a head area fabric 1, a trunk area fabric 2 (a pocket fabric 5 is provided on the trunk area fabric 2, and the two have the same fabric and thickness), an arm area fabric 3, a hand area fabric 4, a leg area fabric 6 and a foot area fabric 7;

[0081] According to the difference between the heat demand and metabolic rate of the human body in motion and in normal state, under the condition of higher metabolic rate, the heat generation of the limbs and the blood flow ratio will increase accordingly, the ideal temperature requirement for cooling clothing is lower, and the cooling power requirement for cooling fabrics is higher. Therefore, the phase change temperatures corresponding to the above 6 partitions are 16°C, 17°C, 18°C, 19°C, 20°C and 22°C respectively. The composite phase change temperature regulating fabric in this embodiment is woven from composite phase change fibers. The difference between the composite phase change fibers and Example 1 is that the above phase change temperature is obtained by adjusting the mass ratio of PEG-400, PEG-600 and PEG-1000;

[0082] According to the cooling capacity required by the human body in different zones during exercise, the thickness of the composite phase change temperature regulating fabric in each zone is adjusted. The thickness of the head zone fabric 1, the trunk zone fabric 2, the arm zone fabric 3, the hand zone fabric 4, the leg zone fabric 6 and the foot zone fabric 7 are recorded as a 2 , b 2 , c 2 , d 2 , e 2 and f 2 .

[0083] Example 3

[0084] This embodiment provides a passive multi-zone multi-temperature nonlinear phase change cooling clothing, such as Figure 4 , Figure 5 and Figure 6 As shown, the nonlinear phase change cooling clothing is divided into 6 zones according to the contact parts between the clothing and the human body, namely, the head zone, the trunk zone, the arm zone, the hand zone, the leg zone and the foot zone, wherein the head zone, the trunk zone, the arm zone and the hand zone constitute an upper coat with a hood and gloves, the hood and the gloves in the upper coat are respectively connected to the main body of the upper coat through a zipper, the leg zone constitutes lower trousers, and the foot zone constitutes a pair of socks;

[0085] The above partitions are further refined, the head area is provided with head area fabric 1, the torso area is provided with neck area fabric 8, torso upper chest area fabric 9, torso lower abdomen area fabric 10 (the torso lower abdomen area fabric 10 is provided with a refined partition pocket fabric 11, the two have the same fabric and thickness), the back area fabric 12, the arm area is provided with upper arm area fabric 13, forearm area fabric 14, the hand area is provided with back of hand area fabric 15 and palm area fabric 16, the leg area is provided with thigh area fabric 17, calf area fabric 18, buttocks area fabric 19, and the foot area is provided with a refined partition foot area fabric 20;

[0086] In order to adapt to the thermal sensitivity and comfort of various parts of the human body and prevent the decrease in thermal comfort caused by the local contact coldness of the refrigeration fabric, the phase change temperatures corresponding to the above fabrics are 19°C, 18°C, 21°C, 25°C, 25°C, 24°C, 23°C, 26°C, 23°C, 24°C, 20°C, 26°C and 22°C respectively; the composite phase change temperature regulating fabric in this embodiment is woven from composite phase change fibers, and the difference between the composite phase change fibers and embodiment 1 is that the above phase change temperature is obtained by adjusting the mass ratio of PEG-600 and PEG-1000;

[0087] According to the cooling capacity required for thermal comfort of human body in different refined zones, the thickness of the head area fabric 1, the neck area fabric 8, the upper chest area fabric 9, the lower abdomen area fabric 10, the back area fabric 12, the upper arm area fabric 13, the forearm area fabric 14, the back of the hand area fabric 15, the palm area fabric 16, the thigh area fabric 17, the calf area fabric 18, the hip area fabric 19, and the refined foot area fabric 20 are adjusted, and the thickness is adjusted to a in sequence. 3 , b 3 , b 1 , b 4 , b 5 , c 3 , c 4 , d 3 , d 4 , e 3 , e 4 , e 5 and f 3 Among them, the hip area fabric 19 is more sensitive to both cold stimulation and heat stimulation, so the phase change temperature of the hip area fabric 19 is increased to reduce the cold stimulation, and the thickness of the hip area fabric 19 is increased to improve its cooling power to reduce its heat stimulation.

[0088] In summary, the nonlinear phase change cooling clothing provided by the present invention performs regional thermal management on heat zones in different parts of the human body, and adjusts the thickness of the cooling material of each clothing zone according to the heat generated by the human body, thereby meeting the nonlinear cooling power requirements of the entire human body.

[0089] The applicant declares that the above is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention shall fall within the protection scope and disclosure scope of the present invention.

Claims

1. A passive multi-zone multi-temperature nonlinear phase change cooling suit, characterized in that: The nonlinear phase change cooling clothing is divided into six zones according to the contact parts between the clothing and the human body, namely, the head zone, the trunk zone, the arm zone, the hand zone, the leg zone and the foot zone; The head area, the torso area, the arm area and the hand area constitute a hooded and gloved coat, and the hood and the gloves in the coat are respectively connected to the main body of the coat through a zipper; The leg area constitutes the lower garment trousers; The foot region forms a pair of socks; In the nonlinear phase change refrigeration clothing, composite phase change temperature regulating fabrics with corresponding phase change temperatures are selected for splicing according to the refrigeration requirements of different zones.

2. The nonlinear phase change cooling clothing according to claim 1, characterized in that: The composite phase change temperature regulating fabric is woven from composite phase change fibers, or blended from composite phase change fibers and other fibers; Preferably, the other fibres comprise cotton and / or wool.

3. The nonlinear phase change refrigeration clothing according to claim 2, characterized in that: The raw materials for preparing the composite phase change fiber include phase change material; Preferably, the phase change material comprises any one or a combination of at least two of polyethylene glycol, paraffin or normal alkanes; Preferably, the raw materials for preparing the composite phase change fiber further include spinning encapsulation materials; Preferably, the spinning envelope material includes any one of polyvinyl alcohol, polyacrylonitrile or polyvinyl pyrrolidone, or a combination of at least two thereof.

4. The nonlinear phase change refrigeration clothing according to claim 3, characterized in that: When the phase change material is polyethylene glycol, the phase change temperature of the composite phase change temperature regulating fabric is regulated by regulating the blending ratio of polyethylene glycols with different molecular weights in the phase change material.

5. The nonlinear phase change refrigeration clothing according to claim 2, characterized in that: The raw materials for preparing the composite phase change fiber also include an enhanced thermal conductivity agent; Preferably, the enhanced thermal conductivity agent comprises metal nanoparticles.

6. The nonlinear phase change cooling suit according to claim 2, characterized in that: The preparation method of the composite phase change fiber includes any one of a centrifugal spinning method, a blended electrostatic spinning method or a coaxial electrostatic spinning method.

7. The nonlinear phase change cooling clothing according to any one of claims 1 to 6, characterized in that: In the nonlinear phase change cooling clothing, the thickness of the composite phase change temperature regulating fabric used in each zone is regulated according to the cooling capacity required for thermal comfort of different zones.

8. The nonlinear phase change cooling clothing according to any one of claims 1 to 7, characterized in that: In the nonlinear phase change cooling suit, each partition includes a refined partition, and the thickness of the composite phase change temperature regulating fabric used in each refined partition is adjusted to control the cooling power of each refined partition.

9. The nonlinear phase change cooling clothing according to claim 8, characterized in that: The detailed divisions of the trunk area include the neck area, the upper chest area of ​​the trunk, the lower abdomen area of ​​the trunk and the back area; Preferably, the refined partition of the torso area also includes a pocket area; Preferably, the fabric and thickness of the pocket area are the same as those of the lower abdominal area of ​​the trunk.

10. The nonlinear phase change cooling clothing according to claim 8, characterized in that: The arm region includes an upper arm region and a lower arm region; Preferably, the hand area includes a back of hand area and a palm area; Preferably, the leg region includes a thigh region, a calf region and a hip region.

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