CN105662006A - Cooling pad - Google Patents

Abstract

Relating to technical field of protective products, the invention provides a cooling pad, which comprises a pad body, a storage tank and a honeycomb duct. The pad body is connected to the storage tank through the honeycomb duct, the pad body includes an inner layer and a surface layer, an airtight cavity is arranged between the inner layer and the surface layer, the surface layer is provided with vent holes, the storage tank is provided with a storage tank switch and stores liquid carbon dioxide. The invention provides a light individual cooling pad with good cooling effect for high temperature workers and field workers. When human body feels hot, a storage tank switch is switched on, the pressure is reduced, part of the liquid carbon dioxide is gasified and enters the cavity to undergo heat exchange with the human body, thus playing a role of lowing body temperature. Liquid carbon dioxide is a refrigerant, can absorb a lot of heat during evaporation, and the heat of evaporation is 578kJ/kg. Carbon dioxide gas is non-toxic, does not pollute the environment after discharge, and at the same time, the price of liquid carbon dioxide is cheap.

Description

A kind of cooling pad

Technical field

The present invention relates to Protection Product technical field, particularly relate to a kind of cooling pad.

Background technology

In the summer of sweltering heat, time on various cushions, back cushion, mattress and the bolster that people use, contact portion heat cannot distribute, sultry hard to bear. Especially for special population, situation is more serious, as rural migrant worker is engaged in a large amount of manual labors daytime, evening, often many people lived in simple and crude builder's temporary shed together, some or even stay in container made of iron, due to the sweltering heat of weather in summer, sometimes just cannot fall asleep at all, this will inevitably affect their operating efficiency, even causes security incident occur during work; For another example the patient of inconvenience movement, perspiring in local, causes local skin inflammation. The common mat used at present, itself can not cooling effect, its temperature is also the rising along with environment temperature and raises. For solving the problems of the technologies described above, cooling pad arises at the historic moment.

In prior art, patent CN201767525U discloses a kind of water circulation cooling pad, is made up of shield, resistance to compression cotton, flexible pipe, joint, fixing card, described shield is wrapped in outside, and the cotton annular array of resistance to compression, in shield, forms annular groove, flexible pipe is arranged in annular groove, in shaped formation, water inlet pipe and outlet pipe are arranged on the outside of shield, and jiont treatment is on water inlet pipe mouth effluent pipe mouth, fixing card is arranged on joint, fixing pipe orifice joint, prevents from loosening, and shield is provided with fixing band. Owing to the cooling efficiency of water is relatively low, this kind of cooling pad needs to waste a large amount of water source, is not applicable to promoting the use of on a large scale. Patent CN201528875U discloses a kind of cooling pad, comprise the upper layer and cutting optimal made by weaving cotton cloth, Macromolecule glue-line it is provided with between described upper layer and cutting optimal, it is provided with watertight composition below described upper layer, being provided with watertight composition above described cutting optimal, the periphery of described upper layer and cutting optimal is tightly connected. This cooling pad adopts Macromolecule glue-line to play the effect of cooling, but in Macromolecule glue-line, the cooling time of high-molecular gel is not long on the one hand, on the other hand, macromolecule hydrogel price is higher, and be difficult to realize recycling, therefore financial cost is higher, that is, for common rural migrant worker, price is difficult to bear.

Therefore need the reducing temperature of heatstroke prevention pad that a kind of cooling-down effect of exploitation is good, price is cheap badly.

Summary of the invention

It is an object of the invention to provide the cooling pad that a kind of cooling-down effect is good, price is cheap, concrete summary of the invention is as follows:

A cooling pad, comprises cushion body, holding vessel, mozzle, and described cushion body is connected by mozzle with holding vessel; Described cushion body comprises nexine and surface layer, is closed cavity in the middle of described nexine and surface layer; Described surface layer is provided with steam vent; Described holding vessel is provided with holding vessel switch, and storing liquid carbon dioxide. So design, when human body feels sweltering heat, opens holding vessel switch, and pressure reduces, and operative liquid carbon dioxide gasification enters in mat cavity and carries out heat exchange with health, plays the effect reducing human body temperature. Liquid carbon dioxide is the agent of a kind of refrigeration, can absorb a large amount of heat during evaporation, and its heat of vaporization is 578kJ/kg. Carbon dioxide is nontoxic, and discharge does not pollute the environment, and liquid carbon dioxide price is cheap simultaneously.

Further, described holding vessel is provided with pressure-reducing valve, and by being connected, nut connects described pressure-reducing valve with holding vessel

Further, described pressure-reducing valve comprises valve body, and described valve body is provided with safety valve, air inlet and gas outlet; Described air inlet place is provided with high pressure table, and described gas outlet place is provided with low-pressure meter; Described valve body is also provided with low-pressure meter pressure adjusting lever; Described gas outlet is connected with mozzle. The pressure of high pressure table display gas holding vessel, what low-pressure meter showed is through the pressure using gas after pressure-reducing valve reduces pressure. The decompression of gas in holding vessel and the setting of safety valve can be ensured safety, avoiding holding vessel switch to open, a large amount of low-temperature carbon dioxide gas enters in cooling pad cavity, causes temperature too low, local is crossed and cold human body is caused infringement, and empty cavity pressure is excessive simultaneously causes cooling pad to damage. The setting of low-pressure meter pressure adjusting lever, can regulate force value after decompression, the force value of setting is bordering on constant. So arranging, holding vessel has that to control precision, security performance preferably better, easy for operation.

Further, described cushion body is provided with at least one cooling pipe, is evenly distributed in described cavity, and described cooling pipe one end is connected with mozzle, and the other end is connected with steam vent. The essence that arranges of cooling pipe is that cooling gas is carried out guide functions, and the flow direction and distribution to carbon dioxide gas stream control so that gas is uniformly distributed as much as possible in cooling pad, it is to increase heat exchange efficiency.

Further, being provided with adapter in the middle of described mozzle and cooling pipe, described adapter one end is connected with mozzle, and the other end is connected with multiple cooling pipe respectively. So design, can arrange multiple cooling pipe, increase the flow direction of air-flow as much as possible, be distributed to cushion body as early as possible everywhere, avoids local, gas porch excessively cold.

Further, described cooling pipe cross-distribution. So design, control air flow direction, is distributed to mat as early as possible everywhere, cushion body can be made everywhere to lower the temperature as early as possible, it is to increase heat exchange efficiency, avoids local, gas porch excessively cold simultaneously.

Further, described cooling is paid somebody's debt and expected repayment later and is provided with center-control unit, mobile power supply and temperature sensor, described center-control unit is electrically connected with mobile power supply, described steam vent is connected with cooling pipe outlet, and described steam vent is provided with switch for vent port and pressure sensing device, described switch for vent port and holding vessel switch are magnetic valve, described temperature sensor, pressure sensing device, switch for vent port and holding vessel switch and center-control unit and mobile power supply are electrically connected, the temperature signal of described temperature sensor for detecting in cushion body, and the temperature signal of detection is input to center-control unit, described pressure sensing device is used for detecting the air pressure at steam vent place, and by pressure signal transmission to center-control unit, the temperature signal of reception and pressure signal and temperature value and the force value preset are compared by described center-control unit, control the folding of described holding vessel switch and described switch for vent port. so arrange, when human body feels sweltering heat, namely when cushion body temperature is higher, high temperature signal is passed to center-control unit by temperature sensor, the temperature signal of reception and the high temperature values preset are compared by center-control unit, when the temperature value of the temperature signal received is equal to or higher than high temperature values, center-control unit controls holding vessel switch is opened, and cold source enters in cushion body by mozzle, in this process, temperature sensor and pressure sensing device constantly by induction temperature signal and pressure signal transmission to center-control unit, the temperature signal of reception and the low-temperature values preset are compared by center-control unit, the most hyperbar value of the force value of pressure signal and setting is compared, when the temperature signal temperature value received equals low-temperature values, center-control unit controls holding vessel switch cuts out, when the force value of pressure signal received equals the most hyperbar value of setting, center-control unit controls switch for vent port is opened, release gas carries out pressure release, so can throughput size in cushion body be carried out controlled, avoid pressure in cushion body excessive cause cooling pad damage, mobile power supply is also for automatic control module provides electric energy. so arrange, when some particular job can be avoided to be inconvenient to open the relevant operations such as switch, entered the automation of cushion body by the cold source of the folding of center-control unit controls holding vessel switch realization cooling pad.

Further, described cooling is paid somebody's debt and expected repayment later and is provided with alarm module, and described alarm module and center-control unit are electrically connected; The normal signal of the pressure signal of reception and temperature signal and pre-stored is compared by described center-control unit, and when the abnormal signal that center-control unit receives, control alarm module sends to indicate accordingly and user gives warning prompting. So design, when the temperature signal that center-control unit receives continues lower than default lowest temperature angle value or higher than default maximum temperature value, and the force value of the pressure signal received is when continuing the most hyperbar value higher than setting, center-control unit controls alarm module sends to indicate accordingly and user gives warning prompting, and instruction user carries out the manual operation being correlated with.

Further, described surface layer is by being incubated gas impermeable material preparation. So arrange, effectively increase the cooling time.

Further, described nexine is prepared by comfortable gas impermeable material. So arrange, make user comfortable and easy to wear.

Further, described cooling pipe is capillary, described capillary composition capillary pipe network. Capillary pipe network possesses that relative heat exchange area is big and the thin good heat conductivity of tube wall, heat transfer efficient.

Further, the air inlet place of described cooling pipe is provided with fender. The setting of fender is avoided the local, air inlet place cooling pipe to cross and cold human body is caused infringement.

Further, described fender is macromolecule hydrogel. Macromolecule hydrogel contains large quantity of moisture, specific heat capacity height, and while releasing more heat transfer, temperature decrease is not obvious. And macromolecule hydrogel can take away the part heat of human body by the evaporation of moisture, play cooling effect.

Further, described steam vent is provided with multiple.

Further, described cooling is paid somebody's debt and expected repayment later and is comprised mixing device, and described mixing device comprises main air inlet, auxiliary gas outlet and gas outlet, and described main air inlet is connected with holding vessel gas outlet by mozzle, auxiliary air inlet is connected with at least one steam vent, and described gas outlet is connected with cooling pipe import. So arranging, it is achieved low temperature gas mixes with the higher temperatures gas after heat exchange, and the two carries out heat exchange, the carbon dioxide temperature that part is discharged on the one hand is still lower, especially carries out directly being discharged reduction heat exchange efficiency after cooling processes one period; On the other hand, to gas and the air inlet mixed processing discharged, also effectively raise the temperature of air inlet, avoid low temperature gas directly to enter cushion body and caused that local mistake is cold causes infringement to human body.

Further, the tank body perforate of described holding vessel, described tapping is provided with pressure release device; So arrange, when can avoid working under the high temperature conditions, the excessive danger causing tank body to explode of pressure in tank body occurs.

Further, described pressure release device comprises pressure relief plate and flange; A ring flange of described flange is welded on tank body opening place; Described pressure relief plate is arranged in the middle of two ring flanges. So arranging, when the limit pressure that pressure can bear higher than pressure relief plate, pressure relief plate is broken, and release gas carries out pressure release, avoids blast. The limit pressure that the limit pressure that pressure relief plate can bear is less than and explodes close to tank body.

Further, described pressure release device comprises elasticity device and sealing device; Described sealing device and tank body tapping hole wall are tightly connected; Described elasticity device comprises elastomer and Connection Block, and described Connection Block is fixedly connected with storage tank body; Described elastomer one end is connected with Connection Block, and one end is connected with sealing device. So arrange, when can avoid working under the high temperature conditions, the excessive danger causing tank body to explode of pressure in tank body occurs. When pressure is higher than the pulling force of elastomer, sealing device outwards moves along tank wall under the influence of air pressure, departs from tank wall completely until last, and release gas carries out pressure release, avoids blast. The limit pressure that the pulling force of spring is less than and explodes close to tank body when sealing device and tank body tapping depart from completely.

Further, described pressure release device comprises body, elasticity device and sealing device; Described body is cavity body structure, and described elasticity device and sealing device are installed in body, and described sealing device is connected with body inner wall sealing; Described elasticity device comprises elastomer and Connection Block, and described Connection Block is fixedly connected on body; Described elastomer one end is connected with Connection Block, and one end is connected with sealing device; Described body and holding vessel are threaded connection. So arrange, when can avoid working under the high temperature conditions, the excessive danger causing tank body to explode of pressure in tank body occurs. Elastomer can owing to making elastic force change by the impact of low temperature for a long time, and the degradation of elastomer then means that holding vessel can not re-use. So arrange, just can increase the service life of holding vessel, during replacing, only need to change elastomer and sealing device, change at most pressure release device. As mentioned above, it is necessary, the limit pressure that during now pressure release, the pulling force of elastomer is less than and explodes close to tank body.

Further, described ring flange has been threaded connection protective cover. Working as hypertonia, when pressure relief plate is broken, protective cover can effectively be avoided pressure relief plate to splash and user or other people are caused damage.

Further, described Connection Block is with bolts with tank wall or weld.

Further, described Connection Block is with bolts with body or weld.

Further, described storage tank body tapping utilizes reinforcement and/or reinforcement circle reinforcement.

Further, described storage tank body tapping arranges baffle plate or protective cover. So arrange, can effectively avoid sealing device to fly causing arbitrarily infringement.

Further, described storage tank body is provided with and buckles. So arrange, it may also be useful to time, holding vessel can be convenient for carrying.

Further, it is provided with holding vessel bag outside described cushion body. So arrange, it may also be useful to time, holding vessel can be convenient for carrying.

Further, described cushion body is provided with support frame. The setting of support frame, avoids lying in due to human body and shrivels cooling pipe in cushion body and cause in cushion body stream operated smooth, affect cooling-down effect, even may cause locally excessively cold. Described support frame can be thought of as soft material, naturally it is also possible to is the preparation of other materials.

Further, being provided with storage cooling layer between described cushion body nexine and surface layer, described cooling pipe is attached in described storage cooling layer. Store the setting of cooling layer, the effect of above-mentioned support frame can be played, the low temperature GAS ABSORPTION entering in cushion body can be made on the one hand to store the heat of cooling layer simultaneously, raise rapidly the temperature of gas, avoid low temperature gas directly and human body carry out heat exchange and cause frostbite, utilize the cold property of storage storing cooling layer on the other hand, reduce the heat exchange of cushion body and surrounding environment, effectively extend the cooling time of cushion body. Especially should increase the thickness storing cooling layer in the Leng Yuan import department of cushion body accordingly, certainly also fender can be set in the Leng Yuan import department of cushion body, avoid local to cross Cold water stress human body.

Further, described storage cooling layer is made up of phase-change material for cold storage, heat chemistry cool storage material or Adsorption Cold Storage material.

Accompanying drawing explanation

The accompanying drawing of the part forming the present invention is used to provide a further understanding of the present invention, and the schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.

Fig. 1 and Fig. 8 is respectively the cooling mat structure schematic diagram involved by one embodiment of the present invention;

Fig. 2 is the pressure-reducing valve partial enlargement figure shown in Fig. 1;

Fig. 3 is mozzle and cushion body connection diagram involved by a kind of enforcement mode in Fig. 1;

The pressure release apparatus structure schematic diagram of Fig. 4～6 involved by one embodiment of the present invention;

Fig. 7 a kind of in Fig. 5 and Fig. 6 implements the connecting base structure schematic diagram involved by mode.

In figure:

1 cushion body 2 holding vessel 3 mozzle 4 nexine

5 surface layer 7 steam vent 8 switch for vent port 9 holding vessel switches

10 pressure-reducing valves 11 connect nut 12 valve body 13 safety valve

14 air inlet 15 gas outlet 16 high pressure table 17 low-pressure meters

18 low-pressure meter pressure adjusting levers 19 cool pipe 20 adapter 21 center-control unit

22 move power supply 23 temperature sensor 24 pressure sensing device 25 stores cooling layer

26 alarm module 28 fenders 29 mix device 30 and mix the main air inlet of device

The 31 mixing auxiliary air inlets 32 of device mix device gas outlet 33 and cool pipe gas outlet 34 and cool pipe air inlet

35 flange 36 pressure relief plate 37 ring flange 38 tank walls

39 ring liner 40 stud 41 nut 42 sealing devices

43 spring 44 Connection Block 45 annular frame 46 disks

47 connecting rod 48 body 6 cavitys

Specific embodiment party formula

Describing the present invention below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, it should not protection scope of the present invention has any restriction effect. In addition, those skilled in the art are according to the description of presents, it is possible to the feature in embodiment in presents and in different embodiment is carried out respective combination.

The embodiment of the present invention is as follows, refers to Fig. 1 to Fig. 2, and a kind of cooling pad, comprises cushion body 1, holding vessel 2, mozzle 3, and described cushion body 1 is connected by mozzle 3 with holding vessel 2; Described cushion body 1 comprises nexine 4 and surface layer 5, is closed cavity 6 in the middle of described nexine 4 and surface layer 5; Described surface layer 5 is provided with steam vent 7; Described holding vessel 2 is provided with holding vessel switch 9, and storing liquid carbon dioxide. So design, when human body feels sweltering heat, opens holding vessel switch 9, and in holding vessel 2, pressure reduces, and operative liquid carbon dioxide gasification enters in mat cavity and carries out heat exchange with health, plays the effect reducing human body temperature; Cooling pad closes holding vessel switch 9 after reaching the temperature of human comfort's degree

Liquid carbon dioxide is the agent of a kind of refrigeration, a large amount of heat can be absorbed during evaporation, its heat of vaporization is 578kJ/kg, under level pressure, the specific heat capacity of carbon dioxide is 0.842kJkJ/ (kg DEG C), and the specific heat capacity of the specific heat capacity of human body and water is close, it is about 4.2kJ/ (kg DEG C), through test, in the condition of cooling mat surface layer insulation better performances, carry the liquid carbon dioxide of 1kg and user can be made to use the long enough time. Therefore the present invention light and handy, be convenient for carrying, and holding vessel is easy to change, and the carbon dioxide discharged is nontoxic, does not pollute the environment, and liquid carbon dioxide price is cheap simultaneously.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2, described holding vessel 2 is provided with pressure-reducing valve 10, and by being connected, nut 11 connects described pressure-reducing valve 10 with holding vessel 2.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2, described pressure-reducing valve 10 comprises valve body 12, and described valve body 12 is provided with safety valve 13, air inlet 14 and gas outlet 15; Described air inlet 14 place is provided with high pressure table 16, and described gas outlet 15 place is provided with low-pressure meter 17; Described valve body 12 is also provided with low-pressure meter pressure adjusting lever 18; Described gas outlet 15 is connected with mozzle 3. High pressure table 16 shows the pressure of holding vessel 2, and what low-pressure meter 15 showed is through the pressure using gas after pressure-reducing valve 10 reduces pressure. The decompression of gas in holding vessel 2 and the setting of safety valve 13 can be ensured safety, avoiding holding vessel switch 9 to open, a large amount of low-temperature carbon dioxide gas enters in cushion body 1, causes temperature too low, local is crossed and cold human body is caused infringement, and possible pressure is excessive simultaneously causes cooling pad to damage. The setting of low-pressure meter pressure adjusting lever 17, can regulate force value after decompression, the force value of setting is bordering on constant. So arranging, holding vessel 2 has that to control precision, security performance preferably better, easy for operation.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 3, being provided with adapter 20 in the middle of described mozzle 3 and cooling pipe 19, described adapter 20 one end is connected with mozzle 3, and the other end is connected with multiple cooling pipe 19 respectively. So design, can arrange multiple cooling pipe 19, increase the flow direction of air-flow as much as possible, be distributed to cushion body 1 as early as possible everywhere, avoids local, gas porch excessively cold.

On the basis of above-described embodiment, in another embodiment of the present invention, described cooling pipe 19 cross-distribution. So design, control air flow direction, is distributed to cushion body 1 as early as possible everywhere, cushion body 1 can be made everywhere to lower the temperature as early as possible, it is to increase heat exchange efficiency, avoids local, gas porch excessively cold simultaneously.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1, described cooling is paid somebody's debt and expected repayment later and is provided with center-control unit 21, mobile power supply 22 and temperature sensor 23, described center-control unit 21 is electrically connected with mobile power supply 22, described steam vent 7 is connected with cooling pipe gas outlet 33, and described steam vent 7 is provided with switch for vent port 8 and pressure sensing device 24, described switch for vent port 8 is magnetic valve with holding vessel switch 9, described temperature sensor 23, pressure sensing device 24, switch for vent port 8 are electrically connected with holding vessel switch 8 and center-control unit 21 and mobile power supply 22, the temperature signal of described temperature sensor 23 for detecting in cushion body 1, and the temperature signal of detection is input to center-control unit 21, described pressure sensing device 24 is used for detecting the air pressure at steam vent 7 place, and by pressure signal transmission to center-control unit 21, the temperature signal of reception and pressure signal and temperature value and the force value preset are compared by described center-control unit 21, control the folding of described holding vessel switch 9 and described switch for vent port 8. so arrange, when human body feels sweltering heat, namely when cushion body 1 temperature is higher, high temperature signal is passed to center-control unit 21 by temperature sensor 23, the temperature signal of reception and the high temperature values preset are compared by center-control unit, when the temperature value of the temperature signal received is equal to or higher than high temperature values, center-control unit 21 controls holding vessel switch 9 and opens, and cold source enters in cushion body 1 by mozzle 3, in this process, temperature sensor 23 and pressure sensing device 24 constantly by the temperature signal of induction and pressure signal transmission to center-control unit 21, the temperature signal of reception and the low-temperature values preset are compared by center-control unit 21, the most hyperbar value of the force value of pressure signal and setting is compared, when the temperature signal temperature value received equals low-temperature values, center-control unit 21 controls holding vessel switch 9 and closes, when the force value of pressure signal received equals the most hyperbar value of setting, center-control unit 21 controls switch for vent port 8 and opens, release gas carries out pressure release, so can throughput size in cushion body be carried out controlled, avoid pressure in cushion body excessive cause cooling pad damage, mobile power supply is also for automatic control module provides electric energy. so arranging, when some particular job can be avoided to be inconvenient to open the relevant operations such as switch, the cold source being controlled the folding realization cooling pad of holding vessel switch 9 by center-control unit 21 enters the automation of cushion body 1.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1, described cooling is paid somebody's debt and expected repayment later and is provided with alarm module 26, and described alarm module 26 is electrically connected with center-control unit 21; The normal signal of the signal of reception and pre-stored is compared by described center-control unit 21, when the abnormal signal that center-control unit 21 receives, here signal comprises temperature signal and pressure signal, and control alarm module 26 sends to indicate accordingly and user gives warning prompting. So design, when the temperature signal that center-control unit 21 receives continues lower than default lowest temperature angle value or higher than default maximum temperature value, and the force value of the pressure signal received is when continuing the most hyperbar value higher than setting, center-control unit 21 controls alarm module 26 and sends to indicate accordingly user gives warning prompting, and instruction user carries out the manual operation be correlated with.

It should be noted that, for the object making accompanying drawing succinctly understand, described temperature sensor 23, alarm module 26, control switch and center-control unit 21 do not have embodiment in the accompanying drawings with mobile power supply 22 and are electrically connected, it is not intended that temperature sensor 23 described in above-mentioned enforcement mode, alarm module 26, control switch and center-control unit 21 are not electrically connected with mobile power supply 22, namely in fact it is electrically connected, said temperature sensor 23 on accompanying drawing, alarm module 26, respectively control switch, the position of center-control unit 21 and mobile power supply 22 is not the restriction to its particular location in cushion body yet, the temperature sensor 23 that accompanying drawing is above-mentioned, alarm module 26, control switch, center-control unit 21 and mobile power supply 22 only play mark action.

On the basis of above-described embodiment, in another embodiment of the present invention, described cushion body 1 is prepared by insulation material. So arrange, effectively increase the cooling time.

On the basis of above-described embodiment, in another embodiment of the present invention, described cooling pipe 19 is capillary, described capillary composition capillary pipe network. Capillary pipe network possesses that relative heat exchange area is big and the thin good heat conductivity of tube wall, heat transfer efficient.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 3, the air inlet place of described cooling pipe 19 is provided with fender 28. The setting of fender 28 is avoided the local, air inlet place cooling pipe 19 to cross and cold human body is caused infringement.

On the basis of above-described embodiment, in another embodiment of the present invention, described fender 28 is macromolecule hydrogel. Macromolecule hydrogel contains large quantity of moisture, specific heat capacity height, and while releasing more heat transfer, temperature decrease is not obvious. And macromolecule hydrogel can take away the part heat of human body by the evaporation of moisture, play cooling effect.

On the basis of above-described embodiment, in another embodiment of the present invention, described steam vent 7 is provided with multiple.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1, described cooling is paid somebody's debt and expected repayment later and is comprised mixing device 29, described mixing device 29 comprises main air inlet 30, auxiliary gas outlet 31 and gas outlet 32, described main air inlet 30 is connected with holding vessel gas outlet 15 by mozzle 3, auxiliary air inlet 31 is connected with at least one steam vent 7, described mixing device gas outlet 32 is connected with cooling pipe air inlet 34 with by mozzle 3, or mixing device gas outlet 32 is directly connected with cooling pipe air inlet 34. But steam vent 7 is not all connected with auxiliary air inlet 31, specifically, in the present embodiment, the steam vent 7 of 50% is connected with auxiliary air inlet 31. So arranging, it is achieved low temperature gas mixes with the higher temperatures gas after heat exchange, and the two carries out heat exchange, the carbon dioxide temperature that part is discharged on the one hand is still lower, especially carries out directly being discharged reduction heat exchange efficiency after cooling processes one period; On the other hand, gas and the air inlet discharged is carried out mixed processing, also effectively raises the temperature of air inlet, avoid low temperature gas directly to enter cushion body 1 and caused that local mistake is cold causes infringement to human body.

On the basis of above-described embodiment, in another embodiment of the present invention, the tank body perforate of described holding vessel 2, described tapping is provided with pressure release device.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 4, described pressure release device comprises pressure relief plate 35 and flange 36; A ring flange 37 of described flange 36 is welded on the tank wall 38 at tank body opening place; Described pressure relief plate is arranged in the middle of two ring flanges 37, is provided with ring liner 39 between pressure relief plate 35 and ring flange, fastening by stud 40 and nut 41 between ring flange. The limit pressure design that the material of described pressure relief plate 35 and thickness can bear according to tank body, in concrete the present embodiment, by selecting material and the thickness of pressure relief plate 35, the limit pressure that the limit pressure that pressure relief plate be can bear is less than and explodes close to tank body. So arrange, when can avoid working under the high temperature conditions, the excessive danger causing tank body to explode of pressure in tank body occurs. When the limit pressure that pressure can bear higher than pressure relief plate 35, pressure relief plate 35 is broken, and release gas carries out pressure release, avoids blast.

On the basis of above-described embodiment, in another embodiment of the present invention, described ring flange 37 is threaded connection protective cover. Working as hypertonia, when pressure relief plate 35 is broken, protective cover can effectively be avoided pressure relief plate 35 to splash and user or other people are caused damage.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 5, described pressure release device comprises elasticity device and sealing device 42; Described sealing device 42 is tightly connected with tank body tapping hole wall; Described elasticity device comprises spring 43 and Connection Block 44, and described Connection Block 45 is fixedly connected with holding vessel 2 tank wall 38 nexine or tapping hole wall; Described spring 43 one end is connected with Connection Block 45, and one end is connected with sealing device 42. Described sealing device 42 is the high-strength rubber material preparation of resistance to low temperature and high pressure, the diameter of sealing device 42 is slightly larger than the diameter of tank body tapping, to ensure that sealing device 42 contacts with the sealing of tank body tapping hole wall, coat sealing glue at sealing device 42 with tank body tank body tapping hole wall place simultaneously; In the present embodiment, the limit pressure that when sealing device 42 and tank body tapping depart from completely, the pulling force of spring 42 is less than and explodes close to tank body. Tapping is not exclusively blocked by described Connection Block 44, to ensure that gas contacts with sealing device 42, in the present embodiment, the concrete structure of a kind of Connection Block 44 is provided, such as Fig. 7, described Connection Block is made up of annular frame 45, disk 46 and connecting rod 47, and described disk 46 is positioned in the middle of annular frame 45, disk 46 is connected by connecting rod 47 with annular frame 45, described disk linking springs 43. So, Connection Block 44 leaves space, and in tank body, gas contacts with sealing device 42. Or Connection Block 44 is square piece, described square piece of area is less than the area in tank body tapping hole. With setting like this, when can avoid working under the high temperature conditions, the excessive danger causing tank body to explode of pressure in tank body occurs. When pressure is higher than the pulling force of spring 43, sealing device 42 outwards moves along tank wall under the influence of air pressure, until finally departing from tank wall completely, release gas carries out pressure release, avoids blast.

On the basis of above-described embodiment, in another embodiment of the present invention, described Connection Block 44 is with bolts with tank wall or welds. Such as Fig. 5, tapping hole wall place is also provided with groove, and described Connection Block 44 is placed in groove.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 6, described pressure release device comprises body 48, elasticity device and sealing device 42; Described body 48 is cavity body structure, and described elasticity device and sealing device 42 are installed in body 48, and described sealing device 42 is connected with body 48 inner wall sealing; Described elasticity device comprises spring 43 and Connection Block 44, and described Connection Block 44 is fixedly connected on body 48; Described spring 43 one end is connected with Connection Block 44, and one end is connected with sealing device 42; Described body 48 is threaded connection with holding vessel 2. Described sealing device 42 is the rubber material preparation of resistance to low temperature and high pressure, the diameter of sealing device 42 is slightly larger than the diameter of tank body tapping, to ensure that sealing device 42 contacts with the sealing of tank body tapping hole wall, coat sealing glue at sealing device 42 with tank body tapping hole wall place simultaneously; The limit pressure that the pulling force of spring 43 is less than and explodes close to tank body when sealing device 42 departs from completely with body 48. Tapping is not exclusively blocked by described Connection Block 44, to ensure that gas contacts with sealing device 42, in the present embodiment, the concrete structure of a kind of Connection Block 44 is provided, such as Fig. 7, described Connection Block 44 is made up of annular frame 45, disk 46 and connecting rod 47, and described disk 46 is positioned in the middle of annular frame 45, disk 46 is connected by connecting rod 47 with annular frame 45, described disk linking springs 43. So, Connection Block 44 leaves space, and in tank body, gas contacts with sealing device 42. Or Connection Block 44 is square piece, described square piece of area is less than the area in tank body tapping hole. So arrange, when can avoid working under the high temperature conditions, the excessive danger causing tank body to explode of pressure in tank body occurs. Spring 43 can owing to making elastic force change by the impact of low temperature for a long time, and the degradation of spring 43 then means that holding vessel 2 can not re-use. So arrange, just can increase the service life of holding vessel 2, during replacing, only need to change spring 43 and sealing device 42, at most only need to change pressure release device.

On the basis of above-described embodiment, in another embodiment of the present invention, Connection Block 44 is with bolts with body 48 or welds. Such as Fig. 1, body 48 inwall place is also provided with annular groove, and described Connection Block 44 is placed in groove.

On the basis of above-described embodiment, in another embodiment of the present invention, described tank body tapping carries out reinforcement and/or reinforcement circle reinforcement.

On the basis of above-described embodiment, in another embodiment of the present invention, described tank body tapping arranges baffle plate or protective cover. So arrange, can effectively avoid sealing device to fly causing arbitrarily infringement.

On the basis of above-described embodiment, in another embodiment of the present invention, described tank body is provided with and buckles. So arrange, it may also be useful to time, it may also be useful in time, only needs can be convenient for carrying on other objects of directly hanging carry in cushion body 1 or user by buckling through tank body.

On the basis of above-described embodiment, in another embodiment of the present invention, outside described cushion body 1, it is provided with holding vessel bag. So arrange, it may also be useful to time, only need to be placed in holding vessel bag holding vessel, it is convenient for carrying.

On the basis of above-described embodiment, in another embodiment of the present invention, described cushion body 1 is provided with support frame. The setting of support frame, avoids lying in due to human body and shrivels cooling pipe 19 in cushion body 1 and cause in cushion body 1 stream operated smooth, affect cooling-down effect, even may cause locally excessively cold. Described support frame can be thought of as soft material, naturally it is also possible to is the preparation of other materials.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1, being provided with and store cooling layer 25 between described cushion body 1 nexine 4 and surface layer 5, described cooling pipe 19 is attached in described storage cooling layer 25. Store the setting of cooling layer 25, it is possible to play the effect of above-mentioned support frame. Simultaneously, the low temperature GAS ABSORPTION that can make to enter in cushion body 1 on the one hand stores the heat of cooling layer 25, raise rapidly the temperature of gas, avoid low temperature gas directly and human body carry out heat exchange and cause frostbite, utilize the cold property of storage storing cooling layer 25 on the other hand, reduce the heat exchange of cushion body and surrounding environment, effectively extend the cooling time of cushion body 1. Especially should increase the thickness storing cooling layer 25 in the Leng Yuan import department of cushion body 1 accordingly, avoid local to cross Cold water stress human body.

On the basis of above-described embodiment, in another embodiment of the present invention, described storage cooling layer 25 is made up of phase-change material for cold storage, heat chemistry cool storage material or Adsorption Cold Storage material.

It should be noted that; the restriction of the position marked in the position accompanying drawing of each parts of the present invention, it will be appreciated that each component locations is not unique; the relative position of each parts, as long as any form that can realize technical problem to be solved by this invention all should be worked as in protection scope of the present invention.

The above is only the preferred embodiment of the present invention; it is noted that for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (10)

1. a cooling pad, it is characterised in that, comprise cushion body, holding vessel, mozzle, described cushion body is connected by mozzle with holding vessel; Described cushion body comprises nexine and surface layer, is closed cavity in the middle of described nexine and surface layer; Described surface layer is provided with steam vent; Described holding vessel is provided with holding vessel switch, and storing liquid carbon dioxide.

2. lower the temperature as claimed in claim 1 pad, it is characterised in that, described holding vessel is provided with pressure-reducing valve, and by being connected, nut connects described pressure-reducing valve with holding vessel.

3. lower the temperature as claimed in claim 2 pad, it is characterised in that, described pressure-reducing valve comprises valve body, and described valve body is provided with safety valve, air inlet and gas outlet; Described air inlet place is provided with high pressure table, and described gas outlet place is provided with low-pressure meter; Described valve body is also provided with low-pressure meter pressure adjusting lever; Described gas outlet is connected with mozzle.

4. lower the temperature as claimed in claim 1 pad, it is characterised in that described cushion body is provided with at least one cooling pipe, is evenly distributed in described cavity, and described cooling pipe one end is connected with mozzle, and the other end is connected with steam vent.

5. lower the temperature as claimed in claim 4 pad, it is characterised in that being provided with adapter in the middle of described mozzle and cooling pipe, described adapter one end is connected with mozzle, and the other end is connected with multiple cooling respectively and manages.

6. lower the temperature as claimed in claim 5 pad, it is characterised in that described cooling pipe cross-distribution.

7. lower the temperature as claimed in any one of claims 1 to 5, wherein pad, it is characterised in that, described cooling pad is provided with center-control unit, mobile power supply and temperature sensor; Described center-control unit is electrically connected with mobile power supply; Described steam vent is connected with cooling pipe outlet, and described steam vent is provided with switch for vent port and pressure sensing device; Described switch for vent port and holding vessel switch are magnetic valve; Described temperature sensor, pressure sensing device, switch for vent port and holding vessel switch and center-control unit and mobile power supply are electrically connected; The temperature signal of described temperature sensor for detecting in cushion body, and the temperature signal of detection is input to center-control unit, described pressure sensing device is used for detecting the air pressure at steam vent place, and by pressure signal transmission to center-control unit, the temperature signal of reception and pressure signal and temperature value and the force value preset are compared by described center-control unit, control the folding of described holding vessel switch and described switch for vent port.

8. lower the temperature as claimed in claim 7 pad, it is characterized in that, described cooling is paid somebody's debt and expected repayment later and is provided with alarm module, the normal signal of the pressure signal of reception and temperature signal and pre-stored is compared by described alarm module and the center-control unit described center-control unit that is electrically connected, when the abnormal signal that center-control unit receives, control alarm module sends to indicate accordingly and user gives warning prompting.

9. lower the temperature as claimed in claim 1 pad, it is characterised in that, described surface layer is by being incubated gas impermeable material preparation.

10. lower the temperature as claimed in claim 1 pad, it is characterised in that, described nexine is prepared by comfortable gas impermeable material; Or described cushion body air inlet place is provided with fender; Or described fender is macromolecule hydrogel; Or described storage tank body is provided with and buckles; Or outside described cushion body, it is provided with holding vessel bag.