CN1245903C - Phase-change material cooling clothes - Google Patents

Phase-change material cooling clothes Download PDF

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Publication number
CN1245903C
CN1245903C CN 200410009720 CN200410009720A CN1245903C CN 1245903 C CN1245903 C CN 1245903C CN 200410009720 CN200410009720 CN 200410009720 CN 200410009720 A CN200410009720 A CN 200410009720A CN 1245903 C CN1245903 C CN 1245903C
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CN
China
Prior art keywords
phase
phase change
change material
temperature
change materials
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Expired - Fee Related
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CN 200410009720
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Chinese (zh)
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CN1602771A (en
Inventor
朱颖心
张寅平
周翔
王馨
林坤平
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Tsinghua University
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Tsinghua University
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Priority to CN 200410009720 priority Critical patent/CN1245903C/en
Publication of CN1602771A publication Critical patent/CN1602771A/en
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Publication of CN1245903C publication Critical patent/CN1245903C/en
Expired - Fee Related legal-status Critical Current
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Abstract

The present invention relates to a temperature reducing garment made of phase change materials, which belongs to a labor protection article used in a high-temperature work environment. The temperature reducing garment made of phase change materials is composed of a vest, a headwear and a neckwear, wherein pockets are arranged at the chest part and the costal part of a front body of the vest and the upper back and both side positions of a back body, and pockets are not arranged at a stomach, an abdomen and kidney positions so that an n-shaped structure is formed; pockets are arranged at a forehead, a temporal bone and cheek positions of the headwear and the front part of a neck of the neckwear. A cold storing bag made of phase change materials is arranged in each pocket. Human body organs, such as the stomach, the kidneys, etc. which can not be cooled in traditional Chinese medicine are evaded in the arrangement of the cold storing bags. Thus, the health of human bodies is guaranteed, and sour pain and uncomfortableness caused by long time cooling are avoided. Phase change materials with a phase change temperature of 25 DEG C to 27 DEG C are adopted by the temperature reducing garment made of phase change materials, and a suitable heat flow rate can be maintained between the surface of a human body and the surface of each cold storing bag. The temperature reducing garment which is used as an effective temperature reducing and protecting device can be applied in work environments related to high temperatures, such as factories, military facilities, astronavigation, etc.

Description

A kind of phase-change material cooling clothes
Technical field
The present invention relates to a kind of is the cool-down garments of heat storage medium with the phase-change material, belongs to the articles for labour protection that use in a kind of high-temperature work environment.
Background technology
When the operation personnel wear the relatively poor protective clothes of high thermal resistance value and water-permeable and air permeable, or when working in the high-temperature operation environment, the quantity of heat production of human body is difficult to all shed, and can store in vivo.Body temperature will continue to rise in this case, and under the condition of non-infectious pathology heating, body temperature rises in 38.3 ℃ of light diseases of initiation and affixes one's name to, and when body temperature rose to 40.0 ℃, perspiration stopped, and severe heat stroke occurred, if do not take measures, the people will be in peril of one's life.
At present common solution is to increase cooling system on the protective garment basis, absorbs the human body quantity of heat production by cooling system, reduces human body accumulation of heat rate, make human body wear protective garment during not reason store too much heat and suffer heatstroke.The cooling system that is increased mainly contains three classes.The first kind is the pipeline cold supply system, and (Air Cooling AC) and liquid phase cools (LiquidCooling), owing to there being the cooling pipeline to link to each other with the operating personnel, cause personnel handicapped, and the auxiliary device volume is bigger, is restricted in the application to comprise gas phase cooling; Second class be evaporative cooling system (Evaporative Cooling, EC); The 3rd class is the phase-changing energy-storing cooling system, comprises ice bag cooling and the cooling of other phase-change materials, referring to " Zhang Fuli, the micro climate cooling system summary of heat-protective clothing. Chinese Individual protective gear, 2003,3:29~30 ".
Because phase-change material can be in a kind of narrow clear and definite temperature range, it is usually said interior its phase that changes of phase transformation range, form with latent heat absorbs, stores a large amount of heats, select the phase-change material of phase transition temperature near the body surface temperature, both can effectively absorb the unnecessary heat of human body, series of negative physiological reaction such as can not cause that again the excessive cold exposure of skin and vessel retraction, tissue are ached.
Existing use phase-change material has following defective as the cool-down garments of heat storage medium on the market.At first, the phase transition temperature of phase-change material is unreasonable, if the material phase transformation temperature is low excessively, will cause the too high series of negative physiological reaction such as cause that the excessive cold exposure of skin and vessel retraction, tissue are ached of heat flow; The too high then material of phase transition temperature is difficult to effective fusing, is not enough to offset the human body heat production, and cooling-down effect is not obvious.As use ice bag as coldness storage bag, low excessively user's the sense of discomfort that causes of the skin surface temperature of pressing close to it; Or the use fusing point is 29.92 ℃ six hydration calcium chloride (CaCl 26H 2O),, under intercepting, clothes can not effectively melt heat absorption, referring to " what is strong, cooling in summer clothes, CN 2229148Y, 1996.6.19 " because fusing point is too high less with skin surface temperature (33~34 ℃) difference.Secondly, phase-change material consumption and irrational distribution, the system of mourning of only will lowering the temperature becomes simple vest shape and be covered with coldness storage bag on vest, after body temperature upper zone phase-change material melts fully, other regional phase-change materials also do not melt, cause the waste on the overall consumption of phase-change material, make that also cooling clothes overall weight is excessive, influence user's normal activity; And there is excessive cold stimulation at the position that uniform phase-change material should not be suffered from cold to belly and waist, harm user's health.Thereby distribute and comfortableness is tested according to human body temperature, it is effectively and very necessary that phase transition temperature, consumption and the distribution on clothes of phase-change material is optimized.
Summary of the invention
The purpose of this invention is to provide a kind of phase-change material cooling clothes, make its thermal comfort that can under hot environment, keep human body, and can user's health not damaged.
Technical scheme of the present invention is as follows:
A kind of phase-change material cooling clothes, it is characterized in that: described cooling clothes are made of vest, headgear and neck cover, chest and flank in described vest predecessor, pocket is arranged at the last back of back body and position, both sides, do not arrange pocket at stomach, belly and kidney position, form " door " font structure, the volume on described headgear, temporo, position, cheek, the neck front portion that neck puts is furnished with pocket simultaneously; Phase transition temperature be housed be 25~27 ℃ phase-change material coldness storage bag in each pocket.
Technical characterictic of the present invention also is: described phase-change material is made up of calcium chloride, sodium chloride, potassium chloride and four kinds of materials of water, and its phase transition temperature is 26.5~27 ℃.
The present invention compared with prior art has the following advantages and the high-lighting effect: the phase-change material bag is " door " font and distributes at trunk, be placed on the main muscle group of human body, as pectoralis major, latissimus dorsi etc., it is strong that this zone has the cold stimulation tolerance, the characteristics that side effect is little.Simultaneously, on phase-change material is arranged, avoided the human internal organ that to suffer from cold in the traditional Chinese medicine,, guaranteed the health of human body, the sense of discomfort of aching that avoiding suffers from cold for a long time causes as stomach, kidney etc.For human body head and neck, because the hotness susceptibility is bigger, these area arrangements phase-change material bags are lowered the temperature can obtain better cooling effect, effectively controls the overall thermal sensation.The use phase transition temperature is 25~27 ℃ a phase-change material coldness storage bag, can keep suitable heat flow between human body surface and phase-change material surface.
Description of drawings
Fig. 1 is that the phase-change material bag is at the positive distributed areas figure of human body.
Fig. 2 is that the phase-change material bag is at human body back side distributed areas figure.
Fig. 3 is cooling clothes vest predecessor structural representation.
Fig. 4 is a body structure schematic diagram behind the cooling clothes vest.
Fig. 5 is cooling clothes headgear structural representation.
Fig. 6 is cooling clothes neck nested structure schematic diagram.
Fig. 7 is cooling clothes overall structure schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is further described.
As shown in Figure 1 and Figure 2, coldness storage bag is arranged in head 1, neck 2, chest and flank 3, goes up in back and 5 zones, position, both sides, promptly at described vest predecessor's chest and flank, pocket is arranged at the last back of back body and position, both sides, volume on headgear, temporo, position, cheek, the throat portion of neck cover is furnished with pocket, and it is big that this zone has heat dissipation capacity, cooling-down effect is obvious, and cooling causes the advantage that sense of discomfort is slighter.And in stomach and belly 4,6 zones, kidney position, do not arrange coldness storage bag, and will cause the human ache sense of discomfort to the long cold stimulation in this zone, excessive cooling also will damage health to internal organs.Other zones are considered for physical activity is convenient as arm, thigh, also should do not arranged coldness storage bag.Coldness storage bag forms " door " font structure in the distribution of trunk portion.
Shown in Fig. 3,4,5,6, select for use frivolous, gas permeability preferably cloth be sewn into vest 7 and headgear and neck cover, be sewed with several pockets 8 thereon, phase transition temperature be housed be 25~27 ℃ phase-change material coldness storage bag 9 in each pocket.The phase-change material that preferably adopts calcium chloride (CaCl2), sodium chloride (NaCl), potassium chloride (KCl), water to form, phase transition temperature is 26.5~27 ℃, latent heat of phase change is 190kJ/kg.This material has stable performance, can repeated multiple times use; Raw material are easy to get and low price; Avirulent advantage.
Coldness storage bag 9 described in the present invention is encapsulated by polybag or rubber bag, is shaped as flat or box-like, with the contact area of increase with body surface.In use phase-change material undergoes phase transition after absorbing the human heat gradually, after finishing using coldness storage bag is taken out, and is placed in the environment such as tank or refrigerator-freezer that is lower than phase transition temperature, is solidified as behind the crystal reusable.
The medical personnel that these cooling clothes are worked in isolation ward try on, and cooling-down effect is good, can effectively absorb heat in the protective garment in the time on duty, and does not influence the normal work activities of medical personnel.The cooling clothes design function time can be according to operating personnel's running time decision, according to selecting suitable phase-change material consumption action time.These cooling clothes can be used in the high-temperature work environment that factory, military installations, aerospace etc. relate to as the protective gear of effectively lowering the temperature.

Claims (1)

1. a phase-change material cooling is obeyed, it is characterized in that: described cooling clothes are made of vest, headgear and neck cover, chest and flank in described vest predecessor, the last back of back body and position, both sides layout pocket, do not arrange pocket at stomach, belly and kidney position, form character; Volume on described headgear, temporo, position, cheek, the throat portion of neck cover is furnished with pocket; Phase transition temperature be housed be 25~27 ℃ phase-change material coldness storage bag in each pocket; Described phase-change material is made up of calcium chloride, sodium chloride, potassium chloride and four kinds of materials of water.
CN 200410009720 2004-10-29 2004-10-29 Phase-change material cooling clothes Expired - Fee Related CN1245903C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200410009720 CN1245903C (en) 2004-10-29 2004-10-29 Phase-change material cooling clothes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200410009720 CN1245903C (en) 2004-10-29 2004-10-29 Phase-change material cooling clothes

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CN1602771A CN1602771A (en) 2005-04-06
CN1245903C true CN1245903C (en) 2006-03-22

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Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2469997A (en) * 2009-05-05 2010-11-10 Paul Francis Hope Garment comprising phase change material for temperature control
CN104041957A (en) * 2013-03-12 2014-09-17 重庆诚邦科技发展有限公司 Constant temperature clothing
CN104116222A (en) * 2013-04-26 2014-10-29 宋嘉朴 Self-circulating temperature adjusting waistcoat for water medium garment
CN104382260B (en) * 2014-12-12 2016-08-24 苏州大学 A kind of temperature regulation and motion Comfortable fabric and molding clothing
CN104644323A (en) * 2015-01-27 2015-05-27 广州医科大学附属第一医院 Cooling head sleeve
CN105919185A (en) * 2016-05-05 2016-09-07 北京航天利民科技研发中心 Phase-changing and temperature-adjusting wearable equipment
CN107637893A (en) * 2017-09-26 2018-01-30 中国安全生产科学研究院 A kind of cooling clothes of combination gas cooling and phase-change material
CN107495501A (en) * 2017-10-20 2017-12-22 北京航天新材科技有限公司 A kind of police Cooling vest
CN108158059A (en) * 2018-01-19 2018-06-15 青岛海尔空调器有限总公司 Air-conditioned clothes
CN110959931A (en) * 2018-09-30 2020-04-07 青岛海尔空调器有限总公司 Air-conditioning clothes
CN111657578A (en) * 2019-03-06 2020-09-15 青岛海尔空调器有限总公司 Cold storage clothes
CN111657579A (en) * 2019-03-06 2020-09-15 青岛海尔空调器有限总公司 Air conditioning clothes
CN111972752A (en) * 2020-08-20 2020-11-24 郑帅 C-shaped cooling scarf and manufacturing method thereof
CN112438452A (en) * 2020-12-18 2021-03-05 国网湖南省电力有限公司 Intelligent electric heating garment

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Granted publication date: 20060322

Termination date: 20161029