CN105662004A - Cooling pad - Google Patents
Cooling pad Download PDFInfo
- Publication number
- CN105662004A CN105662004A CN201610012158.XA CN201610012158A CN105662004A CN 105662004 A CN105662004 A CN 105662004A CN 201610012158 A CN201610012158 A CN 201610012158A CN 105662004 A CN105662004 A CN 105662004A
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- China
- Prior art keywords
- control unit
- central control
- pressure
- holding vessel
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C21/00—Attachments for beds, e.g. sheet holders, bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
- A47C21/04—Devices for ventilating, cooling or heating
- A47C21/042—Devices for ventilating, cooling or heating for ventilating or cooling
- A47C21/046—Devices for ventilating, cooling or heating for ventilating or cooling without active means, e.g. with openings or heat conductors
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
Abstract
Relating to the technical field of protective products, the invention provides a cooling pad, which comprises a pad body, a storage tank, a honeycomb duct and an automatic control module. The pad body is provided with an inlet, which is connected to a storage tank outlet through the honeycomb duct. The storage tank is provided with a storage tank switch and stores cold source, and the storage tank switch is a control switch. The automatic control module comprises a central control unit and a temperature sensor. The temperature sensor is used for detecting a temperature signal in the pad body and inputs the detected temperature signal to the central control unit, and the central control unit compares the received temperature signal with a preset temperature and controls the on-off state of the storage tank switch. The invention provides a cooling pad with the advantages of good cooling effect, intelligence and cheap price.
Description
Technical field
The present invention relates to Protection Product technical field, particularly relate to a kind of cooling pad.
Background technology
During the broiling summer, time on various medicated 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 substantial amounts of physical work 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 necessarily affect their work efficiency, security incident occurs when even resulting in work; For another example the patient of inconvenience movement, perspiring in local, causes local skin inflammation. Currently used common mat, itself can not cooling effect, its temperature is also as the rising of ambient temperature and raises. For solving above-mentioned technical problem, 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 resistance to compression cotton annular array, in shield, forms cannelure, flexible pipe is arranged in cannelure, in shaped formation, water inlet pipe and outlet pipe are arranged on the outside of shield, and joint is arranged on water inlet pipe mouth effluent pipe mouth, fixing card is arranged on joint, fixing pipe orifice joint, it is prevented that loosen, shield is provided with fixing band. Owing to the cooling of water is relatively inefficient, this cooling pad needs to waste substantial amounts of water source, is not suitable for promoting the use of on a large scale. Patent CN201528875U discloses a kind of cooling pad, including the upper layer made by weaving cotton cloth and cutting optimal, Macromolecule glue-line it is provided with between described upper layer and cutting optimal, described upper layer waterproof layer is provided below, described cutting optimal be provided above with waterproof layer, the peripheral sealing of described upper layer and cutting optimal connects. This cooling pad adopts Macromolecule glue-line to play the effect of cooling, but in Macromolecule glue-line, the temperature fall time of high-molecular gel is not long on the one hand, on the other hand, macromolecule hydrogel price is higher, and be difficulty with recycling, therefore Financial cost is higher, say, that, for common rural migrant worker, price is difficult to bear.
Therefore need a kind of cooling-down effect preventing heatstroke pad good, low-cost of exploitation badly.
Summary of the invention
It is an object of the invention to provide that a kind of cooling-down effect is good, the cooling pad of low price, intelligence, concrete summary of the invention is as follows:
A kind of cooling pad, including cushion body, holding vessel, mozzle and automatic control module, described cushion body is provided with import, and described cushion body import is connected by mozzle with holding vessel outlet; Described holding vessel is provided with holding vessel and switchs and store low-temperature receiver, and described holding vessel switch is for controlling switch; Described automatic control module includes central control unit, portable power source, temperature sensor; Described temperature sensor, holding vessel switch are electrically connected with central control unit and portable power source. So arrange, when human body feels sweltering heat, namely when cushion body temperature is higher, high temperature signal is passed to central control unit by temperature sensor, the temperature signal of reception is compared by central control unit with the high temperature values preset, when the temperature value of the temperature signal received is equal to or higher than high temperature values, central control unit controls holding vessel switch and opens, and low-temperature receiver enters in cushion body by mozzle; In this process, the temperature signal of sensing is constantly passed to central control unit by temperature sensor, the temperature signal of reception is compared by central control unit with the low-temperature values preset, and when the temperature signal temperature value received is equal to low-temperature values, central control unit controls holding vessel switch and cuts out; Portable power source also provides electric energy for automatic control module. When the setting of automatic control module avoids some particular job to be inconvenient to open the associative operations such as switch, realized the automatization of the low-temperature receiver entrance cushion body of cooling pad by the folding of central control unit control holding vessel switch.
Further, described low-temperature receiver is liquid carbon dioxide. Liquid carbon dioxide is a kind of cold-producing medium, can absorb substantial amounts of heat during evaporation, and its heat of vaporization is 578kJ/kg. Carbon dioxide is nontoxic, and discharge does not pollute the environment, simultaneously liquid carbon dioxide low price.
Further, described cushion body includes nexine and surface layer; It is evenly distributed with cooling tube between described cushion body nexine and surface layer. The essence that arranges of cooling tube is that cooling gas is carried out guide functions, and the flow direction and distribution to carbon dioxide gas stream are controlled so that gas is uniformly distributed as much as possible in cushion body, improve heat exchange efficiency.
Further, being provided with adaptor between described mozzle and cooling tube, described adaptor one end is connected with mozzle, and the other end is connected with multiple cooling tube respectively. It is so designed that, multiple cooling tube can be set, increase the flow direction of air-flow as much as possible, be distributed to cushion body as early as possible everywhere, it is to avoid gas access place local overcooling.
Further, described cooling tube cross-distribution. It is so designed that, controls air flow direction, be distributed to mat as early as possible everywhere, cushion body can be made to lower the temperature as early as possible everywhere, improve heat exchange efficiency, avoid gas access place local overcooling simultaneously.
Further, described cushion body surface layer is provided with steam vent, and described steam vent is connected with the gas outlet of cooling tube; Described steam vent is provided with control switch, and the described switch that controls is electrically connected with central control unit and portable power source. So arrange, aerofluxus is controlled.
Further, described steam vent is provided with pressure transducer, and described pressure transducer is electrically connected with central control unit and portable power source. So arrange, described pressure transducer is used for detecting the air pressure at steam vent place, and by pressure signal transmission to central control unit, the pressure signal of reception is compared by described central control unit with the force value preset, control the folding controlling switch on described steam vent, the discharge of the gas in cushion body is realized Automated condtrol. So can throughput size in cushion body be carried out controlled, it is to avoid in cushion body, pressure is excessive causes that cooling pad damages.
Further, described cooling pad is additionally provided with alarm module, and described alarm module and central control unit are electrically connected;The normal signal of the signal of reception Yu pre-stored is compared by described central control unit, when the abnormal signal that central control unit receives, signal here includes temperature signal and pressure signal control alarm module sends corresponding instruction and gives warning prompt to user. It is so designed that, when the temperature signal that central control unit receives is consistently less than default lowest temperature angle value or is higher than the maximum temperature value preset, and the force value of the pressure signal received persistently higher than the most hyperbar value set time, central control unit control alarm module sends to indicate accordingly and user gives warning prompt, and instruction user carries out the manual operation being correlated with.
Further, described holding vessel is provided with air relief valve, and described air relief valve is connected by attaching nut with holding vessel.
Further, described air relief valve includes valve body, and described valve body is provided with relief valve, air inlet and gas outlet; Described air inlet place is provided with high pressure gauge, and described gas outlet place is provided with low-pressure meter; Described valve body is additionally provided with low-pressure meter pressure adjusting lever; Described gas outlet is connected with mozzle. The pressure of high pressure gauge display gas holding vessel, low-pressure meter is shown that using the pressure of gas after air relief valve reduces pressure. The decompression of gas in holding vessel and the setting of relief valve can be ensured safety, avoiding holding vessel switch to open, a large amount of cryogenic carbon dioxide gas enter cushion body, cause temperature too low, human body is caused damage by local overcooling, may result in that pressure is excessive causes cooling pad to damage simultaneously. The setting of low-pressure meter pressure adjusting lever, can be adjusted force value after decompression, make the force value of setting be bordering on constant. So arranging, holding vessel has good control accuracy, security performance better, easy for operation.
Further, described nexine is prepared by insulation material. So arrange, be effectively increased temperature fall time.
Further, described surface layer is prepared by porous breathable conformable material. So arranging, allowing user use is be comfortable on, and improves the heat exchange efficiency with human body simultaneously.
Further, described cooling tube is capillary tube, described capillary tube composition capillary bed. Capillary bed 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 tube is provided with shield. The setting of shield avoids the air inlet place local overcooling of cooling tube that human body is caused damage.
Further, described shield is macromolecule hydrogel. Macromolecule hydrogel contains large quantity of moisture, and specific heat capacity is high, and while releasing more heat transfer, temperature declines inconspicuous. And macromolecule hydrogel can take away the partial heat of human body by the evaporation of moisture, play cooling effect.
Further, described cooling pad also includes mixing arrangement, and described mixing arrangement includes primary air inlet, auxiliary gas outlet and gas outlet, and described primary air inlet is connected with holding vessel gas outlet by mozzle, auxiliary air inlet is connected with the outlet of at least one cooling tube, and described gas outlet is connected with cooling tube import. So arranging, it is achieved cryogenic gas mixes with the higher temperatures gas after heat exchange, the two carries out heat exchange, and the carbon dioxide gas temperature of part discharge is still relatively low on the one hand, especially carries out after cooling processes a period of time, directly discharging it reduction heat exchange efficiency; On the other hand, to expellant gas and air inlet mixed processing, the temperature of air inlet is also effectively raised, it is to avoid cryogenic gas is directly entered cushion body and causes that human body is caused damage by local overcooling.
Further, the tank body perforate of described holding vessel, described tapping is provided with pressure relief 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 relief device includes pressure relief plate and flange; One ring flange of described flange is welded on tank body opening part; Described pressure relief plate is arranged in the middle of two ring flanges. So arranging, when the limiting pressure that pressure can bear higher than pressure relief plate, pressure relief plate crushes, and release gas carries out pressure release, it is to avoid blast. The limiting pressure that pressure relief plate can bear less than and close to tank body blast limiting pressure.
Further, described pressure relief device includes elastic device and sealing device; Described sealing device and tank body tapping hole wall are tightly connected; Described elastic device includes elastomer and connects seat, and described connection seat is fixing with storage tank body to be connected; Described elastomer one end is connected with being connected seat, 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 is displaced outwardly along tank skin under the influence of air pressure, until finally completely disengaging from tank skin, release gas carries out pressure release, it is to avoid blast. When sealing device and tank body tapping completely disengage from the pulling force of spring less than and close to the limiting pressure of tank body blast.
Further, described pressure relief device includes body, elastic device and sealing device; Described body is cavity body structure, and it is internal that described elastic device and sealing device are installed on set, and described sealing device is connected with body inner wall sealing; Described elastic device includes elastomer and connects seat, and described connection seat is fixedly connected on body; Described elastomer one end is connected with being connected seat, 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 being made 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, it is only necessary to change elastomer and sealing device, change at most pressure relief device. As it has been described above, during now pressure release the pulling force of elastomer less than and close to tank body blast limiting pressure.
Further, described ring flange has been threaded connection protective cover. Work as hypertonia, when pressure relief plate crushes, protective cover can be prevented effectively from pressure relief plate splash to user or other people cause damage.
Further, described connection seat is with bolts with tank wall or weld.
Further, described connection seat is with bolts with body or weld.
Further, described storage tank body tapping utilizes reinforcement and/or panel reinforcement.
Further, described storage tank body tapping arranges baffle plate or protective cover. So arrange, sealing device can be prevented effectively from and fly out to arbitrarily causing damage.
Further, described storage tank body is provided with and buckles. So arrange, during use, be easily carried holding vessel.
Further, it is provided with holding vessel bag outside described cushion body. So arrange, during use, be easily carried holding vessel.
Further, described cushion body is provided with support frame. The setting of support frame, it is to avoid shrivel cooling tube in cushion body cause in cushion body that stream operated is smooth owing to human body lies in, affect cooling-down effect, in some instances it may even be possible to cause local overcooling.Described support frame is it is contemplated that be flexible material, naturally it is also possible to be prepared by other materials.
Further, being provided with cold-storage layer between described cushion body nexine and surface layer, described cooling tube is attached on described cold-storage layer. The setting of cold-storage layer, the effect of above-mentioned support frame can be played, the cryogenic gas in entrance cushion body can be made on the one hand to absorb the heat of cold-storage layer simultaneously, raise rapidly the temperature of gas, cryogenic gas is avoided directly to carry out heat exchange with human body and cause cold injury, utilize the cold-storage of cold-storage layer on the other hand, reduce the heat exchange of cushion body and surrounding, effectively extend the temperature fall time of cushion body. Especially should accordingly increase the thickness of cold-storage layer in the low-temperature receiver import department of cushion body, certainly also shield can be set in the low-temperature receiver import department of cushion body, it is to avoid local overcooling damage human body.
Further, described cold-storage 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 constituting the part of the present invention is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.
Cooling pad structural representation involved by Fig. 1 and Fig. 8 respectively one embodiment of the present invention;
Fig. 2 is the air relief valve partial enlarged drawing shown in Fig. 1;
Fig. 3 is mozzle and cushion body connection diagram involved by a kind of embodiment in Fig. 1;
Fig. 4～6 pressure relief device structural representation involved by one embodiment of the present invention;
Fig. 7 is the connecting base structure schematic diagram in Fig. 5 and Fig. 6 involved by a kind of embodiment.
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 air relief valve 11 attaching nut 12 valve body 13 relief valve
14 air inlet 15 gas outlet 16 high pressure gauge 17 low-pressure meters
18 low-pressure meter pressure adjusting lever 19 cooling tube 20 adaptor 21 central control units
22 portable power source 23 temperature sensor 24 pressure transducer 25 cold-storage layers
26 alarm module 28 shield 29 mixing arrangement 30 mixing arrangement primary air inlets
Cooling tube gas outlet 34,31 mixing arrangement auxiliary air inlet 32 mixing arrangement gas outlet 33 cooling tube 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 springs 44 connect seat 45 toroidal frame 46 disk
47 connecting rod 48 bodies
Detailed description of the invention
Describing the present invention below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, and protection scope of the present invention should not have any restriction effect. Additionally, the description that those skilled in the art are according to 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. 3, a kind of cooling pad, and including cushion body 1, holding vessel 2, mozzle 3 and automatic control module, described cushion body 1 is provided with import, and the import of described cushion body 1 is exported with holding vessel 2 and is connected by mozzle 3; Described holding vessel 2 is provided with holding vessel switch 9, described holding vessel switch 9 control switch, is specially electromagnetic valve, and holding vessel 2 stores low-temperature receiver; Described automatic control module includes central control unit 21, portable power source 22, temperature sensor 23; Described temperature sensor 23, holding vessel switch 9 are electrically connected with central control unit 22 and portable power source 23.Described holding vessel 2 is pressure vessel. So arrange, when human body feels sweltering heat, namely when cushion body 1 temperature is higher, high temperature signal is passed to central control unit 21 by temperature sensor 23, the temperature signal of reception is compared by central control unit 21 with the high temperature values preset, when the temperature value of the temperature signal received is equal to or higher than high temperature values, central control unit 21 controls holding vessel switch 9 and opens, and low-temperature receiver enters in cushion body 1 by mozzle 3; In this process, the temperature signal of sensing is constantly passed to central control unit 21 by temperature sensor 23, the temperature signal of reception is compared by central control unit 21 with the low-temperature values preset, when the temperature signal temperature value received is equal to low-temperature values, central control unit 21 controls holding vessel switch 9 cut out; Portable power source 22 also provides electric energy for automatic control module. When the setting of automatic control module avoids some particular job to be inconvenient to open the associative operations such as switch, by central control unit 21 control holding vessel switch 9 folding realize cooling pad low-temperature receiver enter cushion body automatization.
On the basis of above-described embodiment, in another embodiment of the present invention, described low-temperature receiver is liquid carbon dioxide. Liquid carbon dioxide is a kind of cold-producing medium, substantial amounts 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 human body and specific heat of water hold close, it is about 4.2kJ/ (kg DEG C), through test, under the cushion body 1 good condition of heat-insulating property, carry 1kg liquid carbon dioxide and user can be made to use the long enough time. Therefore the present invention is light and handy, be convenient for carrying, and holding vessel is easily changed, and the carbon dioxide discharged is nontoxic, does not pollute the environment, liquid carbon dioxide low price simultaneously.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1, described cushion body 1 includes nexine 4 and surface layer 5; It is evenly distributed with cooling tube 19 between described cushion body nexine 4 and surface layer 5. The essence that arranges of cooling tube 19 is that cooling gas is carried out guide functions, and the flow direction and distribution to carbon dioxide gas stream are controlled so that gas is uniformly distributed as much as possible in cushion body 1, improve heat exchange efficiency.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 3, described mozzle 3 is middle with cooling tube 19 is provided with adaptor 20, and described adaptor 20 one end is connected with mozzle 3, and the other end is connected with multiple cooling tube 19 respectively. It is so designed that, multiple cooling tube 19 can be set, increase the flow direction of air-flow as much as possible, be distributed to cushion body 1 as early as possible everywhere, it is to avoid gas access place local overcooling.
On the basis of above-described embodiment, in another embodiment of the present invention, described cooling tube 19 cross-distribution. It is so designed that, controls air flow direction, be distributed to cushion body 1 as early as possible everywhere, cushion body 1 can be made to lower the temperature as early as possible everywhere, improve heat exchange efficiency, avoid gas access place local overcooling simultaneously.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1, outside described cushion body, 5 are provided with steam vent 7, and described steam vent 7 is connected with cooling tube gas outlet 33; Described steam vent is provided with switch for vent port 8, and described switch for vent port 8, for controlling switch, is specially electromagnetic valve, and described switch for vent port 8 is electrically connected with central control unit 21 and portable power source 22.So arrange, aerofluxus is controlled. When temperature sensor 23 detect temperature reach set maximum temperature time, signal is passed to central control unit 21, central control unit 21 controls holding vessel switch 9 and opens, enter in cushion body 1 by air relief valve 10 through mozzle 3 after liquid CO 2 gasification, controlling switch for vent port 8 to open, the higher temperatures gas after heat exchange is discharged through steam vent 7 simultaneously; When temperature reaches the minimum set, signal is passed to central control unit 21 by temperature sensor 23, and central control unit 21 controls switch for vent port 8 and holding vessel switch 9 closes. It is so designed that, it is to avoid under hot conditions, not up to setting lowest temperature, has reached maximum pressure that cushion body 1 bears and caused that cooling pad damages. When again carrying out cooling operation, switch for vent port 8 first opened by central control unit 21, is first exhausted, then carries out aforesaid operations.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1, described steam vent 7 is provided with pressure transducer 24, and described pressure transducer 24 is electrically connected with central control unit 21. Described pressure transducer 24 is used for detecting the air pressure at steam vent 7 place, and by pressure signal transmission to central control unit 21, the pressure signal of reception is compared by described central control unit 21 with the force value preset, control the folding controlling switch on described steam vent 7, the discharge of the gas in cushion body 1 is realized Automated condtrol. When pressure transducer 24 detect cushion body 1 internal gas pressure reach the maximum set time, signal is passed to central control unit 21, central control unit 21 controls switch for vent port 8 and opens and be exhausted. Keep away and be so designed that, throughput size is carried out controlled, it is to avoid in cushion body 1, pressure is excessive causes mat to damage.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1, described cooling pad is additionally provided with alarm module 26, and described alarm module 26 is electrically connected with central control unit 21; The normal signal value of the signal of reception Yu pre-stored is compared by described central control unit 21, when the abnormal signal that central control unit 21 receives, here signal includes temperature signal and pressure signal, and control alarm module 26 sends corresponding instruction and gives warning prompt to user. It is so designed that, when the temperature signal that central control unit 21 receives is consistently less than default lowest temperature angle value or is higher than the maximum temperature value preset, and the force value of the pressure signal received persistently higher than the most hyperbar value set time, central control unit 21 controls alarm module 26 and sends to indicate accordingly user gives warning prompt, and instruction user carries out the manual operation being correlated with.
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 air relief valve 10, and described air relief valve 10 is connected by attaching nut 11 with holding vessel 2.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2, described air relief valve 10 includes valve body 12, and described valve body 12 is provided with relief valve 13, air inlet 14 and gas outlet 15; Described air inlet 14 place is provided with high pressure gauge 16, and described gas outlet 15 place is provided with low-pressure meter 17; Described valve body 12 is additionally provided with low-pressure meter pressure adjusting lever 18; Described gas outlet 15 is connected with mozzle 3. High pressure gauge 16 shows that the pressure of holding vessel 2, low-pressure meter 15 are shown that using the pressure of gas after air relief valve 10 reduces pressure.The decompression of gas in holding vessel 2 and the setting of relief valve 13 can be ensured safety, avoiding holding vessel switch 9 to open, a large amount of cryogenic carbon dioxide gas enter in cushion body 1, cause temperature too low, human body is caused damage by local overcooling, and possible pressure is excessive simultaneously causes cooling pad to damage. The setting of low-pressure meter pressure adjusting lever 17, can be adjusted force value after decompression, make the force value of setting be bordering on constant. So arranging, holding vessel 2 has good control accuracy, security performance better, easy for operation.
It should be noted that, for making the short and sweet purpose of accompanying drawing, described temperature sensor 23, alarm module 26, control switch and central control unit 21 and portable power source 22 does not have embodiment in the accompanying drawings and is electrically connected, it is not intended that temperature sensor 23 described in above-mentioned embodiment, alarm module 26, control switch not to be electrically connected with central control unit 21 and portable power source 22, namely actually it is electrically connected, said temperature sensor 23 on accompanying drawing, alarm module 26, respectively control switch, the position of central control unit 21 and portable power source 22 is not to its restriction of particular location in cushion body yet, the temperature sensor 23 that accompanying drawing is above-mentioned, alarm module 26, control switch, central control unit 21 and portable power source 22 only play mark action.
On the basis of above-described embodiment, in another embodiment of the present invention, described nexine 4 is prepared by insulation material. So arrange, be effectively increased temperature fall time.
On the basis of above-described embodiment, in another embodiment of the present invention, described surface layer 5 is prepared by porous breathable conformable material. So arranging, allowing user use is be comfortable on, and improves the heat exchange efficiency with human body simultaneously.
On the basis of above-described embodiment, in another embodiment of the present invention, described cooling tube 19 is capillary tube, described capillary tube composition capillary bed. Capillary bed 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 tube 19 is provided with shield 28. The setting of shield 28 avoids the air inlet place local overcooling of cooling tube 19 that human body is caused damage.
On the basis of above-described embodiment, in another embodiment of the present invention, described shield 28 is macromolecule hydrogel. Macromolecule hydrogel contains large quantity of moisture, and specific heat capacity is high, and while releasing more heat transfer, temperature declines inconspicuous. And macromolecule hydrogel can take away the partial 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, such as Fig. 1, described cooling pad also includes mixing arrangement 29, described mixing arrangement 29 includes primary air inlet 30, auxiliary gas outlet 31 and gas outlet 32, described primary air inlet 30 is connected with holding vessel gas outlet 15 by mozzle 3, auxiliary air inlet 31 is connected with at least one cooling tube gas outlet 33, described mixing arrangement gas outlet 32 is connected with cooling tube air inlet 34 with by mozzle 3, or mixing arrangement gas outlet 32 is joined directly together with cooling tube air inlet 34. But cooling tube gas outlet 33 is not all connected with auxiliary air inlet 31, specifically, in the present embodiment, the cooling tube gas outlet 33 of 50% is connected with auxiliary air inlet 31. So arranging, it is achieved cryogenic gas mixes with the higher temperatures gas after heat exchange, the two carries out heat exchange, and the carbon dioxide gas temperature of part discharge is still relatively low on the one hand, especially carries out after cooling processes a period of time, directly discharging it reduction heat exchange efficiency; On the other hand, expellant gas and air inlet are carried out mixed processing, also effectively raises the temperature of air inlet, it is to avoid cryogenic gas is directly entered cushion body 1 and causes that human body is caused damage by local overcooling.
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 relief device.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 4, described pressure relief device includes pressure relief plate 35 and flange 36; One ring flange 37 of described flange 36 is welded on the tank wall 38 of tank body opening part; 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, is fastened by stud 40 and nut 41 between ring flange. The limiting 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, make limiting pressure that pressure relief plate can bear less than and close to the limiting pressure of tank body blast. 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 limiting pressure that pressure can bear higher than pressure relief plate 35, pressure relief plate 35 crushes, and release gas carries out pressure release, it is to avoid blast.
On the basis of above-described embodiment, in another embodiment of the present invention, described ring flange 37 is threaded connection protective cover. Work as hypertonia, when pressure relief plate 35 crushes, protective cover can be prevented effectively from pressure relief plate 35 splash to user or other people cause damage.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 5, described pressure relief device includes elastic device and sealing device 42; Described sealing device 42 is tightly connected with tank body tapping hole wall; Described elastic device includes spring 43 and connects seat 44, and described connection seat 45 is fixing with holding vessel 2 tank wall 38 nexine or tapping hole wall to be connected; Described spring 43 one end is connected with being connected seat 45, and one end is connected with sealing device 42. Described sealing device 42 is prepared by low temperature resistant and high pressure high-strength rubber material, 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 fluid sealant at sealing device 42 with tank body tank body tapping hole wall place simultaneously; In the present embodiment, when sealing device 42 and tank body tapping completely disengage from the pulling force of spring 42 less than and close to the limiting pressure of tank body blast. Tapping is not exclusively blocked by described connection seat 44, to ensure that gas contacts with sealing device 42, in the present embodiment, a kind of concrete structure connecting seat 44 is provided, such as Fig. 7, described connection seat is made up of toroidal frame 45, disk 46 and connecting rod 47, and described disk 46 is positioned in the middle of toroidal frame 45, disk 46 is connected by connecting rod 47 with toroidal frame 45, and described disk connects spring 43. So, connecting seat 44 and leave space, in tank body, gas contacts with sealing device 42. Or connecting seat 44 is square block, and described square block area is less than the area in tank body tapping hole. With such setting, 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 is displaced outwardly along tank wall under the influence of air pressure, until finally completely disengaging from tank wall, release gas carries out pressure release, it is to avoid blast.
On the basis of above-described embodiment, in another embodiment of the present invention, described connection seat 44 is with bolts with tank wall or welds. Such as Fig. 5, tapping hole wall place is additionally provided with groove, and described connection seat 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 relief device includes body 48, elastic device and sealing device 42; Described body 48 is cavity body structure, and described elastic device and sealing device 42 are installed in body 48, and described sealing device 42 is connected with body 48 inner wall sealing; Described elastic device includes spring 43 and connects seat 44, and described connection seat 44 is fixedly connected on body 48; Described spring 43 one end is connected with being connected seat 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 prepared by low temperature resistant and high pressure elastomeric material, 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 fluid sealant at sealing device 42 with tank body tapping hole wall place simultaneously; When sealing device 42 completely disengages from body 48 pulling force of spring 43 less than and close to the limiting pressure of tank body blast. Tapping is not exclusively blocked by described connection seat 44, to ensure that gas contacts with sealing device 42, in the present embodiment, a kind of concrete structure connecting seat 44 is provided, such as Fig. 7, described connection seat 44 is made up of toroidal frame 45, disk 46 and connecting rod 47, and described disk 46 is positioned in the middle of toroidal frame 45, disk 46 is connected by connecting rod 47 with toroidal frame 45, and described disk connects spring 43. So, connecting seat 44 and leave space, in tank body, gas contacts with sealing device 42. Or connecting seat 44 is square block, and described square block 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 being made 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, it is only necessary to change spring 43 and sealing device 42, at most only need to change pressure relief device.
On the basis of above-described embodiment, in another embodiment of the present invention, connection seat 44 is with bolts with body 48 or welds. Such as Fig. 1, body 48 inwall place is additionally provided with annular groove, and described connection seat 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 panel 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, sealing device can be prevented effectively from and fly out to arbitrarily causing damage.
On the basis of above-described embodiment, in another embodiment of the present invention, described tank body is provided with and buckles. So arrange, during use, only need during use directly hang over cushion body 1 through tank body by buckling or on other objects that user carries, be easily carried.
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, during use, it is only necessary to holding vessel is placed in holding vessel bag, 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, it is to avoid shrivel cooling tube 19 in cushion body 1 cause in cushion body 1 that stream operated is smooth owing to human body lies in, affect cooling-down effect, in some instances it may even be possible to cause local overcooling.Described support frame is it is contemplated that be flexible material, naturally it is also possible to be prepared by other materials.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1, being provided with cold-storage layer 25 between described cushion body 1 nexine 4 and surface layer 5, described cooling tube 19 is attached on described cold-storage layer 25. The setting of cold-storage layer 25, it is possible to play the effect of above-mentioned support frame. Simultaneously, the cryogenic gas in entrance cushion body 1 can be made on the one hand to absorb the heat of cold-storage layer 25, raise rapidly the temperature of gas, cryogenic gas is avoided directly to carry out heat exchange with human body and cause cold injury, utilize the cold-storage of cold-storage layer 25 on the other hand, reduce the heat exchange of cushion body and surrounding, effectively extend the temperature fall time of cushion body 1. Especially the thickness of cold-storage layer 25 should be accordingly increased in the low-temperature receiver import department of cushion body 1, it is to avoid local overcooling damage human body.
On the basis of above-described embodiment, in another embodiment of the present invention, described cold-storage 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 of institute's labelling 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 the arbitrary form that can realize the technical problem to be solved all should in protection scope of the present invention.
The above is only the preferred embodiment of the present invention; it should be pointed out 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 regarded as protection scope of the present invention.
Claims (10)
1. a cooling pad, it is characterised in that include cushion body, holding vessel, mozzle and automatic control module, described cushion body is provided with import, and described cushion body import is connected by mozzle with holding vessel outlet; Described holding vessel is provided with holding vessel and switchs and store low-temperature receiver, and described holding vessel switch is for controlling switch; Described automatic control module includes central control unit and temperature sensor; Described temperature sensor is used for detecting the intrinsic temperature signal of mat, and the temperature signal of detection is input to central control unit, the temperature signal of reception is compared by described central control unit with the temperature preset, and controls the on off state of described holding vessel switch.
2. cooling pad as claimed in claim 1, it is characterised in that described low-temperature receiver is liquid carbon dioxide.
3. cooling pad as claimed in claim 2, it is characterised in that described cushion body includes nexine and surface layer; It is evenly distributed with cooling tube between described cushion body nexine and surface layer.
4. cooling pad as claimed in claim 3, it is characterised in that being provided with adaptor between described mozzle and cooling tube, described adaptor one end is connected with mozzle, and the other end is connected with multiple cooling tube respectively.
5. cooling pad as claimed in claim 4, it is characterised in that described cooling tube cross-distribution.
6. cooling pad as claimed in claim 3, it is characterised in that described cushion body surface layer is provided with steam vent, and described steam vent is connected with the gas outlet of cooling tube; Described steam vent is provided with control switch, and the described switch that controls is electrically connected with central control unit and portable power source.
7. cooling pad as claimed in claim 6, it is characterised in that described steam vent is provided with pressure transducer, and described pressure transducer is electrically connected with central control unit and portable power source;Described pressure transducer is used for detecting the air pressure at steam vent place, and by pressure signal transmission to central control unit, the pressure signal of reception is compared by described central control unit with the force value preset, and controls the folding controlling switch on described steam vent.
8. cooling pad as claimed in claim 5, it is characterized in that, described cooling pad is additionally provided with alarm module, the pressure signal of reception and the normal signal of temperature signal and pre-stored are compared by described alarm module and the central control unit described central control unit that is electrically connected, when the abnormal signal that central control unit receives, control alarm module sends corresponding instruction and gives warning prompt to user.
9. cooling pad as claimed in claim 1, it is characterised in that described holding vessel is provided with air relief valve, and described air relief valve is connected by attaching nut with holding vessel.
10. cooling pad as claimed in claim 9, it is characterised in that described air relief valve includes valve body, and described valve body is provided with relief valve, air inlet and gas outlet; Described air inlet place is provided with high pressure gauge, and described gas outlet place is provided with low-pressure meter; Described valve body is additionally provided with low-pressure meter pressure adjusting lever; Described gas outlet is connected with mozzle; Or described nexine prepared by insulation material; Or described surface layer prepared by porous breathable conformable material; Or described cooling tube is capillary tube, described capillary tube composition capillary bed; Or described storage tank body is provided with and buckles; Or it is provided with holding vessel bag outside described cushion body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610012158.XA CN105662004A (en) | 2016-01-08 | 2016-01-08 | Cooling pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610012158.XA CN105662004A (en) | 2016-01-08 | 2016-01-08 | Cooling pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105662004A true CN105662004A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610012158.XA Pending CN105662004A (en) | 2016-01-08 | 2016-01-08 | Cooling pad |
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| CN (1) | CN105662004A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102273743A (en) * | 2010-06-08 | 2011-12-14 | 上海景文材料科技发展有限公司 | Garment with cooling structure |
| CN102920062A (en) * | 2012-11-13 | 2013-02-13 | 江苏省电力公司无锡供电公司 | Cooling costume for distribution network hot-line work |
| US20140305148A1 (en) * | 2008-08-06 | 2014-10-16 | Leslie Owen Paull | Evaporative cooling clothing system for reducing body temperature of a wearer of the clothing system |
| CN104305583A (en) * | 2014-11-07 | 2015-01-28 | 浙江省江山市浙安消防设备有限公司 | High temperature protective device |
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- 2016-01-08 CN CN201610012158.XA patent/CN105662004A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140305148A1 (en) * | 2008-08-06 | 2014-10-16 | Leslie Owen Paull | Evaporative cooling clothing system for reducing body temperature of a wearer of the clothing system |
| CN102273743A (en) * | 2010-06-08 | 2011-12-14 | 上海景文材料科技发展有限公司 | Garment with cooling structure |
| CN102920062A (en) * | 2012-11-13 | 2013-02-13 | 江苏省电力公司无锡供电公司 | Cooling costume for distribution network hot-line work |
| CN104305583A (en) * | 2014-11-07 | 2015-01-28 | 浙江省江山市浙安消防设备有限公司 | High temperature protective device |
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Application publication date: 20160615 |
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