CN105167241A - Personal cooling system - Google Patents
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- CN105167241A CN105167241A CN201510523941.8A CN201510523941A CN105167241A CN 105167241 A CN105167241 A CN 105167241A CN 201510523941 A CN201510523941 A CN 201510523941A CN 105167241 A CN105167241 A CN 105167241A
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Abstract
The invention discloses a personal cooling system. The personal cooling system comprises a cooling garment, a secondary refrigerant circulating heat exchange tube is arranged in the cooling garment and communicated to the outside of the cooling garment to be connected with a circulating auxiliary device, the circulating auxiliary device is connected with a modularized refrigeration module, and the circulating auxiliary device and the modularized refrigeration module are both controlled by a control device. By means of thermoelectric refrigeration, the modularized refrigeration module provides secondary refrigerants for the secondary refrigerant circulating heat exchange tube in the cooling garment through the circulating auxiliary device to realize circulation cooling in the cooling garment. Based on body surface heat release distribution and thermal comfort requirements, the personal cooling system realizes personal thermal comfort temperature regulation in a high-temperature environment by means of thermoelectric refrigeration. By full consideration of the thermal comfort requirements of human bodies in the high-temperature environment, arrangement of the secondary refrigerant circulating heat exchange tube in the cooling garment is determined according to body surface temperature, sweat gland distribution and heat release quantity.
Description
Technical field
The present invention relates to a kind of personal cooling system, particularly a kind of based on the distribution of human body surface heat dissipation capacity and human thermal comfort requirement, utilize modular refrigeration assembly and thermal comfort cooling clothes to realize the personal cooling system of human body temperature regulation and control under hot environment.
Background technology
Personal cooling device is the earliest the needs in order to adapt to modernized war, solves the problems such as the operating personnel's physical consumption caused due to heat stress effect under high thermal environment is too fast, absent minded, brain response is blunt and researches and develops.At present, its range of application progressively expands to the various fields such as military, space flight, fire-fighting, metallurgy, mining, medical treatment and physical culture, is mainly used in hot environment, avoid human body overheated, strengthens human thermal comfort, and is applied to the treatment etc. of some disease.
Have developed the cooling clothes that applicable different industries personnel wear requirement abroad.Within 1989, the flexible pipe that frozen water is housed is sewn in vest by USN naval vessel seaman, the frozen water cooling utilizing water pump to make it achieve seaman at flexible pipe Inner eycle.During 1991 Gulf War, USAF have employed a kind of novel intermittent many people cooling system, and this system is made up of air-conditioner, chemical warfare agent filter and vest etc.The cold airflow that air-conditioner produces passes into chemical warfare agent filter, then reduces the temperature of human body in the vest passing into protective garment, can be 10 ground crew's feed cold air simultaneously.US Naval Air Arm systems command is just developing the vest type air-conditioning system that one is called " the refrigeration armor ", ambient air inspiration is positioned at the air-conditioner of air inlet side by this system by a set of filtration blower, the air through overregulating enters the conduit in flying suit from gas outlet and reaches the object reducing pilot's body temperature.This air-conditioning system adopts powered battery, not by the impact of aircraft electrical power supply system, even if pilot also can use after leaving aircraft.The ultralight cooling that Swiss Confederation's testing of materials and research laboratory have developed for multiple sclerosis patients takes.This cooling clothes have three layers, and two-layer chemical fibre film clips one deck fabric, and being formed can the space of water filling, and user takes internal water flooding by injector for medical purpose to cooling, and each water filling can give body cool 60 minutes.
From 1980, China have developed helicopter pilot liquid cooled helmet and Portable Liquid Cooled Suit, and within 1985 and 1986, liquid-cooled suit is applied to " ocean number " surveying vessel.China also have developed novel portable individual soldier cooling system, and this system is made up of Cooling vest and refrigeration system, is covered with snakelike plastic flexible pipe before and after vest, and refrigeration system comprises as the ice bag of low-temperature receiver, pump and battery etc.Be connected with refrigeration system by vest during use, after power-on, the frozen water of ice bag is injected the plastic flexible pipe of vest by water pump, is reached the object of body temperature lowering by ice water circulation.
, there is the problems such as volume is large, noise is high, shock resistance is poor, adjustment is inconvenient all to some extent in the refrigeration modes such as the compression that above-mentioned personal cooling system adopts, absorption and vortex tube.Existingly utilize the personal cooling of thermoelectric cooling and heating system then to exist not consider the shortcomings such as human thermal comfort sexual factor, system complex, current consuming apparatus are many, efficiency is low, Load Regulation is inconvenient.
Summary of the invention
The object of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of Portable, personal whole body cooling system based on thermoelectric cooling principle is provided.This system has that volume is little, noiseless, shock resistance are strong, the response time is short, the advantage such as fast easy to adjust, the in particular cases heat radiation of operating personnel such as military, space flight, fire-fighting, metallurgy, mining, medical treatment or thermal comfort requirement can be met, and according to the requirement of different applying working condition, can select flexibly and regulate its volume, weight and maximum working load.
For achieving the above object, the present invention adopts following technical proposals:
A kind of personal cooling system, comprise cooling clothes, described cooling clothes is built-in with refrigerating medium circulating picture-changing heat pipe, described refrigerating medium circulating picture-changing heat pipe is communicated to outside cooling clothes and is connected with circulatory aid, circulatory aid is connected with modular refrigeration assembly, and circulatory aid and modular refrigeration assembly control by control device; Described modular refrigeration assembly comprises miniature refrigerating medium heat exchanger, utilizes thermoelectric cooling to provide refrigerating medium by circulatory aid for cooling clothes contains refrigerant cycle heat exchanger tube, realizes the cooling of cooling clothes Inner eycle.
Described cooling clothes comprises disjunctor warming garment and cooling headgear, and refrigerating medium circulating picture-changing heat pipe is distributed in disjunctor warming garment and cooling headgear is inner, and disjunctor warming garment and cooling headgear is coupled together.
Described disjunctor warming garment and cooling headgear are made by insulation material, be coated with thermal radiation resistant painting ag material, can completely cut off external high temperature environment and the heat exchange between refrigerating medium circulating picture-changing heat pipe and human body well on the surface of disjunctor warming garment and cooling headgear.
Described refrigerating medium circulating picture-changing heat pipe is warping resistance PVC hose, and dish is distributed in the whole space of disjunctor warming garment and cooling headgear, relies on the refrigerating medium tape loop in it to walk the heat of human body generation.
Described modular refrigeration assembly comprises hard installing plate, and described hard installing plate top is provided with heat insulation layer, and hard installing plate upper surface is provided with the first groove, and miniature refrigerating medium heat exchanger is embedded in the first groove; Described miniature refrigerating medium heat exchanger upper surface and thermoelectric module are fitted, and thermoelectric module top is provided with some heat pipes and heat pipe clamping plate; Described heat pipe two ends are respectively heat absorbing end and radiating end; With the second groove on described heat pipe clamping plate, described heat pipe heat absorbing end to be flush-mounted in the second groove and jointly to form a heat exchange plane with heat pipe clamping plate; Described heat pipe heat radiation end is connected with radiating fin, and radiating fin top is also connected with radiator fan.Hard installing plate, miniature refrigerating medium heat exchanger, thermoelectric module, heat pipe, heat pipe clamping plate, stator, radiating fin, radiator fan one_to_one corresponding, be installed and fixed into one from down to up successively, forms modular refrigeration assembly.
Further, the side of described hard installing plate is provided with buckle or draw-in groove, can be convenient to the structure of splicing mutually between hard installing plate, for when changing modular refrigeration assembly tricks, between module, splicing is fixing mutually.The tricks of modular refrigeration assembly can be selected according to the flexible in size of the environment temperature used and refrigeration duty.When using many cover dies blocking cooling assembly jointly to form set of system, directly by respective hard installing plate interpolation composition one, also can carry out suitable adhesion or be welded and fixed if desired between modular refrigeration assembly.With refrigerating medium pipe, miniature refrigerating medium heat exchanger is linked up according to certain series-parallel system, the refrigerating medium circulation road of the low temperature refrigerating medium device for making inside of complete set can be formed.
Described miniature refrigerating medium heat exchanger is divided into pre-cooling layer and refrigerating layer, and refrigerating layer is positioned at above pre-cooling layer; The runner of described pre-cooling layer is that secondary is turned back runner, the arrival end that liquid enters miniature refrigerating medium heat exchanger is communicated with the entrance of pre-cooling layer, liquid flows out the port of export of miniature refrigerating medium heat exchanger and the outlet of pre-cooling layer, be provided with fin in described pre-cooling layer, the outlet of the entrance of pre-cooling layer and pre-cooling layer is divided into two cavitys completely cut off mutually; The runner of described refrigerating layer is serpentine flow path; Also be provided with sheet metal between described pre-cooling layer and refrigerating layer, realized the precooling of liquid in pre-cooling layer by the heat conduction of sheet metal.
Described sheet metal has feed liquor through hole and go out fluid through-hole, described feed liquor through hole with go out fluid through-hole and all refrigerating layer be communicated with pre-cooling layer, to pass in and out refrigerating layer for liquid.First heat exchanging liquid enters pre-cooling layer by the entrance of pre-cooling layer, after flowing through precooling laminar flow road, enters refrigerating layer by feed liquor through hole, in refrigerating layer runner after heat exchange, passes through again fluid through-hole and flows back to pre-cooling layer, and flow out from the outlet of pre-cooling layer.
The cold junction of described thermoelectric refrigeration element is downward, fits with miniature refrigerating medium heat exchanger; Upwards, the heat exchange plane formed with heat pipe and heat pipe clamping plate is fitted in the hot junction of thermoelectric refrigeration element.
Further, described miniature refrigerating medium heat exchanger and thermoelectric module adopt the series-parallel connected mode of partial intersection, partial intersection connection in series-parallel refers to the miniature refrigerating medium heat exchanger of series connection mutually, with its one to one thermoelectric module be parallel relationship in circuit, and the thermoelectric module of mutually series connection, with its one to one miniature refrigerating medium heat exchanger be also parallel relationship.
Described circulatory aid comprises the refrigerating medium feed line be connected with refrigerating medium circulating picture-changing heat pipe entrance point and the refrigerating medium outflow lines be connected with the refrigerating medium circulating picture-changing heat pipe port of export, described refrigerating medium feed line with refrigerating medium outflow lines is equipped with non-return valve and is connected with refrigerating medium circulating picture-changing heat pipe; Described refrigerating medium feed line is also provided with the circulation coolant pump, filter and the flowmeter that connect successively, described flowmeter is connected with the port of export of miniature refrigerating medium heat exchanger; Described refrigerating medium outflow lines is also provided with fluid reservoir, and described fluid reservoir entrance is communicated with refrigerating medium outflow lines, and fluid reservoir outlet is connected with the arrival end of miniature refrigerating medium heat exchanger.Refrigerating medium circulating picture-changing heat pipe in circulatory aid, modular refrigeration assembly and cooling clothes, constitutes complete system refrigerating medium circulation loop jointly.The effect of fluid reservoir is storage compartment circulating fluid, and discharges the air infiltrated in hydraulic circuit.The effect of filter is the impurity filtered out in circulating fluid, the surface filtration mode that general employing resistance is lower.Circulation refrigerating medium flow is accurately measured in the effect of flowmeter, when system needs flow automatic regulation, can coordinate realize automatically controlling with circulation coolant pump.The effect of non-return valve to prevent in system loop liquid to flow backwards, especially system out of service after, high-order flow direction fluid reservoir can be avoided, overflow from fluid reservoir exhaust outlet.The effect of fluid reservoir is storage compartment circulating fluid, and discharges the air infiltrated in hydraulic circuit.When system is used for special circumstances, the liquid storage tank body of larger volume can be adopted to be that cold-storage is filled with, to load the low-temperature cold accumulation liquid such as mixture of ice and water, effectively improve cooling velocity and efficiency.The import and export of itself and cooling clothes, modular refrigeration assembly then for connecting each several part circulatory aid, and are connected to each other by refrigerating medium circulation line.
Described circulation coolant pump, radiator fan and thermoelectric module are by same Power supply; Connect with gauge tap after the thermoelectric module parallel connection of connecting with several after the series connection of several fans, form refrigeration module; After the refrigeration module of several parallel connections is in parallel with circulation coolant pump, be connected with power supply by master switch.Arranged by the connection in series-parallel of switch, feasible system must first start circulation coolant pump when starting, could start radiator fan and thermoelectric module, radiator fan and thermoelectric module are then that one_to_one corresponding opens and closes simultaneously, can effectively avoid like this damaging thermoelectric module because dispelling the heat bad.
Beneficial effect of the present invention is:
1. cooling system of the present invention is based on the distribution of human body surface heat dissipation capacity and comfortableness requirement, the individual thermal comfort temperature adjusting under utilizing thermoelectric cooling to realize hot environment.
2. cooling system of the present invention defines modular refrigeration assembly, can conveniently splice between assembly, can select the tricks of the modular refrigeration assembly of system according to the environment temperature used and the demand of maximum cold load flexibly.
3. cooling system thermoelectric module cold junction of the present invention and hot junction adopt miniature refrigerating medium heat exchanger to take away cold and heat exchange of heat pipe to add radiator fan heat radiation respectively.
4. cooling system of the present invention miniature refrigerating medium heat exchanger inner flow passage is double layer design, comprise refrigerating layer and pre-cooling layer is two-layer, two interlayers are separated with sheet metal, and every one deck all adopts the runner pattern of particular design, to strengthen the heat exchange of refrigerating medium and heat exchange wall, reduce outlet refrigerant temperature.
5. cooling system of the present invention miniature refrigerating medium heat exchanger and thermoelectric module adopt the series-parallel connected mode of partial intersection.
6. cooling system comfortableness cooling clothes of the present invention is made to be incubated material, and surface scribbles thermal radiation resistant and is coated with ag material, in order to the heat exchange of isolated external high temperature environment and refrigerating medium circulation pipe and human body.And take into full account human body comfortableness requirement in high temperature environments, contain the layout of refrigerant cycle pipe according to the size determination cooling clothes of the temperature of human body surface, sweat gland distribution and quantity of heat production.
7. cooling system of the present invention incorporates system power supply input mode, and circulation coolant pump, thermoelectric module and radiator fan all adopt the direct current driving power supply of same voltage.
8. cooling system of the present invention is by the connection in series-parallel relation of switch, first must start radiator fan and circulation coolant pump, could start thermoelectric cooling, avoid because of heat conduction bad damage thermoelectric module when guarantee system starts.
Accompanying drawing explanation
Fig. 1 is device schematic diagram of the present invention;
Fig. 2 is hard installing plate schematic diagram of the present invention;
Fig. 3 is modular refrigeration assembly front schematic view of the present invention;
Fig. 4 is modular refrigeration assembly side schematic view of the present invention;
Fig. 5 is miniature refrigerating medium heat exchanger precooling laminar flow road of the present invention schematic diagram;
Fig. 6 is miniature refrigerating medium heat exchanger refrigerating layer runner schematic diagram of the present invention;
Fig. 7 is modular refrigeration component internal refrigerating medium expanding channels schematic diagram of the present invention;
Fig. 8 is control circuit schematic diagram of the present invention;
In figure, 1 disjunctor warming garment, 2 refrigerating medium circulating picture-changing heat pipes, 3 cooling headgears, 4 non-return valves, 5 circulation coolant pump, 6 filters, 7 flowmeters, 8 modular refrigeration assemblies, 9 fluid reservoirs, 10 radiator fans, 11 radiating fins, 12 heat pipes, 13 heat pipe clamping plate, 14 thermoelectric modules, 15 miniature refrigerating medium heat exchangers, 16 hard installing plates, 16A groove, 16B buckle, 16C draw-in groove, 17 heat insulation layers, 19 set bolts, 20 stators, 21 fan construction bolts, 22 refrigerating medium pipes, 23 fast insert-pull joints, 24 elbows.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
The present invention can select the tricks of modular refrigeration assembly according to the flexible in size of refrigeration duty, this embodiment only illustrates for the system be made up of 4 cover core coolant assemblies.
As shown in Figure 1, based on the personal cooling system of thermoelectric cooling, comprise disjunctor warming garment 1, refrigerating medium circulating picture-changing heat pipe 2, cooling headgear 3, non-return valve 4, circulation coolant pump 5, filter 6, flowmeter 7, modular refrigeration assembly 8, fluid reservoir 9 and circuit and control device composition.Wherein disjunctor warming garment 1 and cooling headgear 3 are all made to be incubated material, and under special high-temperature condition, its surface can be coated with thermal radiation resistant and be coated with ag material, can completely cut off external high temperature environment and the heat exchange between refrigerating medium circulating picture-changing heat pipe 2 and human body well.Disjunctor warming garment 1 and cooling headgear 3 can wrap up the head of human body, trunk and extremity portion, increase the heat exchange area of itself and human body surface as far as possible, and intercept importing into of external heat.Refrigerating medium circulating picture-changing heat pipe 2 is high-quality warping resistance PVC hose, and dish is distributed in whole disjunctor warming garment 1 and cooling headgear 3 is inner, and the two is coupled together, and relies on circulation refrigerating medium wherein to take away the heat of human body generation.Pass into refrigerating medium in pipe, to take away the heat that human body produces, maintain the low temperature a home from home in cooling clothes.Refrigerating medium can adopt the media such as pure water.The layout density of refrigerating medium circulating picture-changing heat pipe 2 is based on human body comfort requirement, determines according to the size of the surface temperature of human body, sweat gland distribution and quantity of heat production.Before volume, the position of comparatively large, high, the easy perspiration of temperature of oxter, the quantity of heat production such as leg root, pipeline density is relatively large.The effect of circulation coolant pump 5 is for refrigerating medium circulation provides power, general employing DC micro diaphragm pump.When requiring stricter to Flow-rate adjustment, circulation coolant pump 5 also can adopt DC frequency-changing water pump.The lower surface-type filter of resistance made by filter 6, and its effect filters out the impurity in circulation refrigerating medium, the surface filtration mode that general employing resistance is lower.Circulation refrigerating medium flow is accurately measured in the effect of flowmeter 7, is convenient to control manually or automatically.The effect of non-return valve 4 prevents liquid in system loop from flowing backwards, and especially avoids system rear high-lying liquid out of service to pour in down a chimney spilling.The effect of fluid reservoir 9 is storage compartment circulating fluids, and discharges the air mixed in hydraulic circuit.When system is used for special circumstances, the fluid reservoir tank body of larger volume can be adopted to fill with as cold-storage and to use, load the low-temperature cold accumulation liquid such as mixture of ice and water in advance, effectively improve cooling velocity and cooling effectiveness.
Modular refrigeration assembly 8 is core coolant devices of the present invention, is made up of the refrigerating medium pipe 22, fast insert-pull joint 23, elbow 24 etc. of hard installing plate 16, miniature refrigerating medium heat exchanger 15, thermoelectric module 14, heat pipe clamping plate 13, heat pipe 12, radiating fin 11, stator 20, radiator fan 10, heat insulation layer 17 and connection refrigerating medium loop.Wherein, hard installing plate 16 uses certain thickness hard acrylic flat board to process.As shown in Figure 2, the groove 16A of its upper surface engraving is in order to the miniature refrigerating medium heat exchanger 15 of setting-in and part refrigerating medium pipe 22, projection and the groove of side are respectively the buckle 16B and draw-in groove 16C that use when being connected with other modular refrigeration assembly, relative two sides, side is respectively concave-convex, be convenient to mutual splicing, between module, splicing is fixing mutually when changing modular refrigeration assembly tricks.Refrigerating medium pipe 22 is the connecting tubes such as the flexible pipe of the material such as silica gel or PVC, and part elbow, threeway, fast insert-pull joint, mainly plays the effect of UNICOM's refrigerating medium loop.The part refrigerating medium pipe connecting miniature refrigerating medium heat exchanger inlet and outlet also can be embedded in the groove on location and installation plate, becomes to be integrated, and be connected by fast insert-pull joint between the refrigerating medium pipe of other module with modular refrigeration assembly, so that system flexible assembling.Miniature refrigerating medium heat exchanger 15 is for make for the high heat conductivity metal such as copper or aluminium material, select fine copper matter cavity herein, its lower surface is embedded in the groove of location and installation version, and upper surface and thermoelectric module are fitted, and upper and lower two surfaces of miniature refrigerating medium heat exchanger are plane.
As Figure 3-Figure 4, miniature refrigerating medium heat exchanger 15, thermoelectric module 14, heat pipe 12, heat pipe clamping plate 13, radiating fin 11, radiator fan 10 be one_to_one corresponding all, from down to up, be connected on hard installing plate 16 by stator 20 and set bolt 19, form modular refrigeration assembly.Can according to the environment temperature used and the size of refrigeration duty, the tricks of core coolant assembly needed for flexible selection different purposes personal cooling system, by the fast insert-pull joint 23 in the draw-in groove 16C on hard installing plate 16 and buckle 16B and refrigerating medium loop, can be the system of complete set by disparate modules rapid-assembling easily.
For increasing the time that refrigerating medium flows in miniature refrigerating medium heat exchanger, reduce outlet refrigerant temperature, inner flow passage is respectively the double layer design of pre-cooling layer and refrigerating layer, wherein pre-cooling layer under, near hard installing plate, its internal liquid runner form as shown in Figure 5, is runner of simply turning back, and import and outlet is divided into two independently cavitys.Refrigerating medium enters and the interface that flows out miniature refrigerating medium heat exchanger all directly connects with pre-cooling layer.Refrigerating layer is above pre-cooling layer, and close thermoelectric module, by the metal wall of miniature refrigerating medium heat exchanger and the cold junction heat exchange of thermoelectric module.In refrigerating layer, flow channel for liquids as shown in Figure 6, is serpentine flow path, and the length of flow channel for liquids and rib is determined through analog computation and Optimal Experimental, to strengthen the heat exchange between refrigerating medium and heat exchange wall.Pre-cooling layer and the runner of refrigerating layer are connected by the through hole of two on sheet metal.Runner outside is connected with refrigerating medium pipe, and the liquid-inlet of miniature refrigerating medium heat exchanger is connected with fluid reservoir, and outlet is connected with flowmeter.In this example, the wide 3mm of runner, rib width 2mm, the height of runner and rib is 3mm.By layer of metal slice separation between pre-cooling layer and refrigerating layer, realized the precooling of liquid in pre-cooling layer by the heat conduction of sheet metal.Sheet metal is processed with two through holes, is respectively the entrance and exit of refrigerating medium turnover refrigerating layer.As shown in Fig. 5-Fig. 6, first heat exchanging liquid enters pre-cooling layer by the entrance of pre-cooling layer, after flowing through precooling laminar flow road, the opening on refrigerating layer right-hand member top is entered by the opening on pre-cooling layer right-hand member top, in refrigerating layer runner after heat exchange, flowed back to again the opening of pre-cooling layer right-hand member bottom by the opening of refrigerating layer right-hand member bottom, and flow out from the outlet of pre-cooling layer.
As shown in Figure 7, in this example, four miniature refrigerating medium heat exchangers 15, refrigerating medium pipe 22, the pipe fitting such as elbow 24 and fast insert-pull joint 23 of silica gel material in respective connection, embed in the location and installation plate groove 16A of respective module, again according to certain series-parallel system, linked up by pipe fittings such as fast insert-pull joint 23 and threeways, form the refrigerating medium passage of modular refrigeration assembly 8 inside.Thermoelectric module 14 adopts high-quality thin-film thermoelectric module, and its model and quantity can be determined according to the size of cooling load of the air-conditioning system; Fit with miniature refrigerating medium heat exchanger 15 upper surface after its cold junction smears heat-conducting silicone grease, the heat-conducting planar formed with heat pipe 12 and heat pipe clamping plate 13 after heat-conducting silicone grease is smeared in its hot junction is fitted.As shown in Figure 8, for avoiding the excessive adjustment with facilitating under partial load condition of system input current, the connected mode place in circuit that thermoelectric module 14A, 14B, 14C, 14D are in parallel after adopting first series connection, each series arm is with respective gauge tap.Special instruction, miniature refrigerating medium heat exchanger 15 adopts the series-parallel connected mode of partial intersection with thermoelectric module 14.Partial intersection connection in series-parallel refers to the miniature refrigerating medium heat exchanger 15 of mutually series connection, as miniature refrigerating medium heat exchanger 15A and 15C in accompanying drawing 5, with its one to one thermoelectric module be 14A and 14C, be parallel relationship in circuit; And thermoelectric module 14A and 14B mutually connected, its one to one miniature refrigerating medium heat exchanger 15A and 15B be also parallel relationship.The benefit of this connected mode is, under partial load condition, as when in example, the branch road deenergization at thermoelectric module 14C and 14D place quits work, miniature refrigerating medium heat exchanger device 15A and 15B still corresponding to thermoelectric module 14A and 14B of work is parallel with one another, there is not the problem that heat transfer temperature difference reduces, heat exchange efficiency declines caused because of the series connection of refrigerating medium pipeline.Heat pipe 12 is fine copper matter pipe or flat tube, and be usually processed into U-shaped, inner sealing is filled with hydraulic fluid, and its kind, charging amount, operating temperature must be determined through calculating according to the use occasion of system is different with operating pressure.The two ends of heat pipe 12 are respectively heat absorbing end and radiating end, and be welded as a whole in the groove that heat absorbing end embeds heat pipe clamping plate 13, lower surface is processed into heat exchange plane, fits tightly heat absorption with the hot junction of thermoelectric module 14; Radiating end then through the heat pipe installing hole on radiating fin 11, is welded as a whole with radiating fin 11; Heat absorbing end absorbs the heat that thermoelectric module hot junction produces, and these heats distribute to surrounding environment by radiating end again.The effect of heat pipe clamping plate 13 is heat absorbing end of fixing heat pipe, and makes it form a heat exchange plane, fits tightly with the hot junction of thermoelectric module.Heat pipe clamping plate 13, for being the high heat conductivity metal such as copper or aluminium, being selected fine copper herein, are provided with the stator 20 of stainless steel above it, be connected on hard installing plate 16 by set bolt 19.Radiating fin 11 is installed on the radiating end of heat pipe to increase the contact area with surrounding air, and strengthen radiating effect, it is generally multi-disc aluminium matter or copper sheets composition.In this example, radiating fin 11 is multi-disc aluminium matter thin slice composition, it is processed with heat pipe installing hole and the bolt hole for installing radiator fan 10.In order to strengthen the specific heat load of heat pipe heat radiation end, above radiating fin, be equipped with special forced convertion radiator fan.Radiator fan 10 adopts Minisize axial flow type fan, is installed on radiating fin 11 by fan construction bolt 21.Radiator fan 10 adopts dc source to drive, and the thermoelectric module corresponding with under same module is directly connected in parallel, and input voltage is consistent with thermoelectric module.Modular refrigeration assembly 8 is also provided with heat insulation layer 17, plays the effect intercepting cold and hot end exchange heat.
As shown in Figure 8, circuit and control device provide power supply, measuring system operating mode for whole system, and carry out Systematical control.In order to the power supply of optimization system, circulation coolant pump adopts direct current input, its input voltage is identical with total input voltage of thermoelectric refrigeration element, the input voltage of radiator fan also with thermoelectric module one_to_one corresponding, the system that so just achieves adopts single dc source to drive.In addition, arranged by the connection in series-parallel of switch, must first start circulation coolant pump when feasible system starts, radiator fan and thermoelectric module could be started, radiator fan and thermoelectric module are then that one_to_one corresponding opens and closes simultaneously, can effectively avoid like this damaging thermoelectric module because dispelling the heat bad.When Systematical control requires not tight, adopt many grades of shaping modes of switch control rule, export cold by the thermoelectric module quantity regulating controlling work; When Systematical control requires strict, the parameter such as temperature, flow run by real-time measurement system realizes the input power of thermoelectric module or the automatic adjustment of frequency conversion coolant pump running frequency, accurately controls to export the object of cold to reach.
For the manual adjustment system that general precision requires, the circuit of this example and control device are comparatively simple.For the consideration integrating whole system power supply, circulation coolant pump 5 adopts 24V DC micro diaphragm pump, and pump capacity does not regulate; Be characterized in there is self-suction function, small in volume, long service life, pumped (conveying) medium not revealing and carry the heat exchange amount between liquid little when starting, and there is very high impurity particle pass through performance.When requiring higher to Flow-rate adjustment, DC frequency-changing water circulating pump can be adopted, with fine adjustment feed flow, reaching and accurately controlling and energy-efficient object.Thermoelectric module 14A and 14B connects, then the branch road that formed of connecting with radiator fan 10A and 10B is parallel with one another, uses same K switch 2 to control start and stop, forms K2 branch road.Another set of thermoelectric module 14A and 14B, and the circuit connecting mode of radiator fan 10A and 10B is identical with K2 branch road, forms K3 branch road.K2 and K3 branch road uses 24V dc source to drive too.When system brings into operation, first open master switch K1, now namely water pump brings into operation, and then open K switch 2 and K3 successively, system enters the state of operating at full capacity.When system loading reduces, reducing system power by closing a branch road, forming the control model of stepping formula.When Systematical control required precision is higher, circuit connection mode is constant, just increase temperature sensor in systems in which, and thermoelectric module branch road in K2 and K3 increases regulating circuit, automatically operating voltage and the electric current of thermoelectric module is regulated, to realize automatically and continuously regulating of power output according to the signal of temperature sensor.In particular cases also circulation coolant pump 5 can be replaced by DC frequency-changing coolant pump, by temperature signal regulating system circulation refrigerating medium flow.When system is as outdoor portable equipment use, need to be equipped with the electric supply installations such as battery separately.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (10)
1. a personal cooling system, it is characterized in that, comprise cooling clothes, described cooling clothes is built-in with refrigerating medium circulating picture-changing heat pipe, described refrigerating medium circulating picture-changing heat pipe is communicated to outside cooling clothes and is connected with circulatory aid, circulatory aid is connected with modular refrigeration assembly, and circulatory aid and modular refrigeration assembly control by control device; Described modular refrigeration assembly comprises miniature refrigerating medium heat exchanger, utilizes thermoelectric cooling to provide refrigerating medium by circulatory aid for cooling clothes contains refrigerant cycle heat exchanger tube, realizes the cooling of cooling clothes Inner eycle.
2. personal cooling system as claimed in claim 1, it is characterized in that, described cooling clothes comprises disjunctor warming garment and cooling headgear, and refrigerating medium circulating picture-changing heat pipe is distributed in disjunctor warming garment and cooling headgear is inner, and disjunctor warming garment and cooling headgear is coupled together.
3. personal cooling system as claimed in claim 2, it is characterized in that, described disjunctor warming garment and cooling headgear are made by insulation material, are coated with thermal radiation resistant painting ag material on the surface of disjunctor warming garment and cooling headgear.
4. personal cooling system as claimed in claim 2, it is characterized in that, described refrigerating medium circulating picture-changing heat pipe is warping resistance PVC hose, and dish is distributed in the whole space of disjunctor warming garment and cooling headgear.
5. personal cooling system as claimed in claim 1, it is characterized in that, described modular refrigeration assembly comprises hard installing plate, and described hard installing plate top is provided with heat insulation layer, hard installing plate upper surface is provided with the first groove, and miniature refrigerating medium heat exchanger is embedded in the first groove; Described miniature refrigerating medium heat exchanger upper surface and thermoelectric module are fitted, and thermoelectric module top is provided with some heat pipes and heat pipe clamping plate; Described heat pipe two ends are respectively heat absorbing end and radiating end; With the second groove on described heat pipe clamping plate, described heat pipe heat absorbing end to be flush-mounted in the second groove and jointly to form a heat exchange plane with heat pipe clamping plate; Described heat pipe heat radiation end is connected with radiating fin, and radiating fin top is also connected with radiator fan.
6. personal cooling system as claimed in claim 5, it is characterized in that, the side of described hard installing plate is provided with buckle or draw-in groove.
7. personal cooling system as claimed in claim 5, it is characterized in that, described miniature refrigerating medium heat exchanger is divided into pre-cooling layer and refrigerating layer, and refrigerating layer is positioned at above pre-cooling layer; The runner of described pre-cooling layer is that secondary is turned back runner, the arrival end that liquid enters miniature refrigerating medium heat exchanger is communicated with the entrance of pre-cooling layer, liquid flows out the port of export of miniature refrigerating medium heat exchanger and the outlet of pre-cooling layer, be provided with fin in described pre-cooling layer, the outlet of the entrance of pre-cooling layer and pre-cooling layer is divided into two cavitys completely cut off mutually; The runner of described refrigerating layer is serpentine flow path; Also sheet metal is provided with between described pre-cooling layer and refrigerating layer; Described sheet metal has feed liquor through hole and go out fluid through-hole, described feed liquor through hole with go out fluid through-hole and all refrigerating layer be communicated with pre-cooling layer.
8. personal cooling system as claimed in claim 5, it is characterized in that, described miniature refrigerating medium heat exchanger and thermoelectric module adopt the series-parallel connected mode of partial intersection.
9. personal cooling system as claimed in claim 5, it is characterized in that, described circulatory aid comprises the refrigerating medium feed line be connected with refrigerating medium circulating picture-changing heat pipe entrance point and the refrigerating medium outflow lines be connected with the refrigerating medium circulating picture-changing heat pipe port of export, described refrigerating medium feed line with refrigerating medium outflow lines is equipped with non-return valve and is connected with refrigerating medium circulating picture-changing heat pipe; Described refrigerating medium feed line is also provided with the circulation coolant pump, filter and the flowmeter that connect successively, described flowmeter is connected with the port of export of miniature refrigerating medium heat exchanger; Described refrigerating medium outflow lines is also provided with fluid reservoir, and described fluid reservoir entrance is communicated with refrigerating medium outflow lines, and fluid reservoir outlet is connected with the arrival end of miniature refrigerating medium heat exchanger.
10. personal cooling system as claimed in claim 9, it is characterized in that, described circulation coolant pump, radiator fan and thermoelectric module are by same Power supply; Connect with gauge tap after the thermoelectric module parallel connection of connecting with several after the series connection of several fans, form refrigeration module; After the refrigeration module of several parallel connections is in parallel with circulation coolant pump, be connected with power supply by master switch.
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| CN201510523941.8A CN105167241B (en) | 2015-08-24 | 2015-08-24 | A kind of personal cooling system |
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| CN201510523941.8A CN105167241B (en) | 2015-08-24 | 2015-08-24 | A kind of personal cooling system |
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| CN105167241A true CN105167241A (en) | 2015-12-23 |
| CN105167241B CN105167241B (en) | 2017-01-04 |
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| CN105799957A (en) * | 2016-03-14 | 2016-07-27 | 云南科威液态金属谷研发有限公司 | Molten metal space suit |
| CN105876917A (en) * | 2016-06-14 | 2016-08-24 | 深圳人本国际科技服饰有限公司 | Clothes with constant temperature refrigeration structure and temperature control method of clothes |
| CN106174784A (en) * | 2016-08-02 | 2016-12-07 | 李乐薇 | A kind of refrigeration suit |
| CN107183807A (en) * | 2017-06-13 | 2017-09-22 | 山东师范大学 | Outdoor temperature-adjusting clothes based on semiconductor refrigerating |
| CN110044099A (en) * | 2019-04-11 | 2019-07-23 | 浙江奇翼特种服装有限公司 | A kind of semiconductor refrigerating heating system |
| CN110473642A (en) * | 2019-07-26 | 2019-11-19 | 重庆医科大学附属第一医院 | A kind of intervention operation aeration type anti-radiation clothes |
| CN110693643A (en) * | 2019-11-08 | 2020-01-17 | 山前（珠海）科技有限公司 | Whole body freezing physiotherapy equipment |
| CN112690519A (en) * | 2021-01-11 | 2021-04-23 | 河北工业大学 | Whole body composite cooling garment based on bionics principle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110473642A (en) * | 2019-07-26 | 2019-11-19 | 重庆医科大学附属第一医院 | A kind of intervention operation aeration type anti-radiation clothes |
| CN110693643A (en) * | 2019-11-08 | 2020-01-17 | 山前（珠海）科技有限公司 | Whole body freezing physiotherapy equipment |
| CN112690519A (en) * | 2021-01-11 | 2021-04-23 | 河北工业大学 | Whole body composite cooling garment based on bionics principle |
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