CN106042990B - A kind of safety seat used for vehicle - Google Patents
A kind of safety seat used for vehicle Download PDFInfo
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- CN106042990B CN106042990B CN201610545836.9A CN201610545836A CN106042990B CN 106042990 B CN106042990 B CN 106042990B CN 201610545836 A CN201610545836 A CN 201610545836A CN 106042990 B CN106042990 B CN 106042990B
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- 239000000919 ceramic Substances 0.000 claims description 138
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 116
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 90
- 239000000843 powder Substances 0.000 claims description 87
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 81
- 239000000463 material Substances 0.000 claims description 61
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 238000005260 corrosion Methods 0.000 claims description 45
- 239000011858 nanopowder Substances 0.000 claims description 43
- 239000008367 deionised water Substances 0.000 claims description 36
- 229910021641 deionized water Inorganic materials 0.000 claims description 36
- 238000010438 heat treatment Methods 0.000 claims description 36
- 238000001035 drying Methods 0.000 claims description 30
- 239000004570 mortar (masonry) Substances 0.000 claims description 30
- 239000011248 coating agent Substances 0.000 claims description 23
- 238000000576 coating method Methods 0.000 claims description 23
- 238000002360 preparation method Methods 0.000 claims description 22
- 238000000227 grinding Methods 0.000 claims description 20
- 230000035945 sensitivity Effects 0.000 claims description 20
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 18
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 18
- 230000007797 corrosion Effects 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 18
- JYTUFVYWTIKZGR-UHFFFAOYSA-N holmium oxide Inorganic materials [O][Ho]O[Ho][O] JYTUFVYWTIKZGR-UHFFFAOYSA-N 0.000 claims description 17
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 12
- 230000002401 inhibitory effect Effects 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- 230000001376 precipitating effect Effects 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 229910044991 metal oxide Inorganic materials 0.000 claims description 8
- 150000004706 metal oxides Chemical class 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 6
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 238000000354 decomposition reaction Methods 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 238000005538 encapsulation Methods 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 239000011796 hollow space material Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims description 6
- 235000006408 oxalic acid Nutrition 0.000 claims description 6
- 239000000049 pigment Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 238000004448 titration Methods 0.000 claims description 6
- 238000002604 ultrasonography Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 229910002554 Fe(NO3)3·9H2O Inorganic materials 0.000 claims 2
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 claims 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 142
- 239000007789 gas Substances 0.000 description 75
- 229910002092 carbon dioxide Inorganic materials 0.000 description 73
- 238000012360 testing method Methods 0.000 description 30
- 230000004044 response Effects 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 230000001680 brushing effect Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 13
- 230000008859 change Effects 0.000 description 7
- 239000001569 carbon dioxide Substances 0.000 description 6
- 238000005245 sintering Methods 0.000 description 6
- 229910010413 TiO 2 Inorganic materials 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 239000008236 heating water Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000013112 stability test Methods 0.000 description 5
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 5
- 229910000368 zinc sulfate Inorganic materials 0.000 description 5
- 239000011686 zinc sulphate Substances 0.000 description 5
- 235000009529 zinc sulphate Nutrition 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000007784 solid electrolyte Substances 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- -1 sensor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/125—Composition of the body, e.g. the composition of its sensitive layer
- G01N27/127—Composition of the body, e.g. the composition of its sensitive layer comprising nanoparticles
Abstract
This application involves a kind of safety seats used for vehicle, comprising: CO2 sensor, the CO2 concentration where being configured to determine the traffic safety seat when the vehicles are inoperative in cockpit；And controller, it is configured to determine that the cockpit is occupied by occupant based on the concentration in cockpit when the vehicles are inoperative.
Description
Technical field
This application involves safety seat field, especially a kind of safety seat used for vehicle.
Background technique
Carbon dioxide is a kind of gas colourless at normal temperature, tasteless, chemical property is stable, and current result of study refers to
Out, the content raising of carbon dioxide can cause greenhouse effects in atmosphere, and final result will lead to global warming, on the earth
The appearance for a series of problems, such as existence of animals and plants generates threat, and sea level rise, extreme weather is all excessive with carbon dioxide
It discharges related；In addition, the photosynthesis of plant needs the participation of carbon dioxide, green house of vegetables, biotechnology etc., it is right
There is strict demand in the monitoring and control of gas concentration lwevel.
For the vehicles, Spatial General 6 R is closed, atmosphere draught-free, and a large amount of CO2 gas of accumulation are easy in main cabin
Body can be caused harm to the human body when CO2 gas excess.
Summary of the invention
To overcome the problems in correlation technique, the application provides a kind of safety seat used for vehicle.
The invention is realized by the following technical scheme:
A kind of safety seat used for vehicle characterized by comprising seat body；
CO2 gas sensor is configured to determine that the traffic safety seat is present when the vehicles are inoperative
CO2 concentration in cabin；And
Controller is configured to determine the cockpit quilt based on the concentration in cockpit when the vehicles are inoperative
Occupant occupies.
Preferably, the CO2 gas sensor is located at position at the lower a quarter of the seat body calculated by volume.
The technical solution that embodiments herein provides can include the following benefits:
1. safety seat involved in the application is equipped with CO2 gas sensor, CO2 gas sensing on safety seat
The sensitive material of device uses perovskite type metal oxide HoFeO3 nano-powder and SnO2 powder, and two kinds of sensitive materials are right
CO2 gas has selectivity, and two kinds of Material claddings, which use, ensure that response of the gas sensor to CO2 gas.Insulating ceramics
Using the rectangular plate of hollow structure, the top and bottom of insulating ceramics are two layers of sensitive layer, and are above HoFeO3 nano powder
Body in internal layer, SnO2 powder in outer layer, below for SnO2 powder in internal layer, HoFeO3 nano-powder in outer layer, this kind of structure is set
It sets and plays complementary effect to the feedback of CO2 response signal, improve the accuracy of feedback signal.
2. safety seat involved in the application, in the CO2 gas sensor preparation process used, passed in CO2 gas
It joined pore creating material calcium carbonate in the sensitive layer of sensor, during the sintering process, calcium carbonate can generate gas evolution, so that quick
Feel layer and form porous structure, internal layer is small, outer layer is big in addition, the density of porous structure is set as, which substantially increases
The contact area of sensitive layer and CO2 gas, improves sensitivity.
3. safety seat involved in the application, in the CO2 gas sensor preparation process used, passed in CO2 gas
The preserving timber bed of material, the waterproof and corrosion resistance of the anti-corrosion material energy lift gas sensor are coated with outside the sensitive layer of sensor comprehensively
Can, its service life is extended, and then improve the monitoring situation to the variation of CO2 gas concentration；In addition, since CO2 gas passes
Sensor preparation process is simple and convenient and efficient, therefore, the prospect with potential large-scale promotion application.
The additional aspect of the application and advantage will be set forth in part in the description, and will partially become from the following description
It obtains obviously, or recognized by the practice of the application.It should be understood that above general description and following detailed description are only
Be it is exemplary and explanatory, the application can not be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is the structural schematic diagram of safety seat shown according to an exemplary embodiment.
Fig. 2 is the structural schematic diagram of CO2 gas sensor shown according to an exemplary embodiment.
Fig. 3 is the preparation method flow chart of CO2 gas sensor shown according to an exemplary embodiment.
Wherein: 11- seat body, 12-CO2 sensor, 13- controller；
1- insulating ceramics, 2- electrode, 3- sensitive layer A, 4- sensitive layer B.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Following disclosure provides many different embodiments or example is used to realize the different structure of the application.For letter
Change disclosure herein, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
Purpose does not lie in limitation the application.In addition, the application can in different examples repeat reference numerals and/or letter.It is this heavy
It is that for purposes of simplicity and clarity, itself is more than the relationship discussed between various embodiments and/or setting again.This
Outside, this application provides various specific techniques and material example, but those of ordinary skill in the art may be aware that
The use of the applicability and/or other materials of other techniques.In addition, fisrt feature described below is in Second Eigenvalue "upper"
Structure may include embodiment that the first and second features are formed as directly contacting, also may include that other feature is formed in
Embodiment between first and second features, such first and second feature may not be direct contact.
In the description of the present application, it should be noted that unless otherwise specified and limited, term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the connection being also possible to inside two elements can
, can also indirectly connected through an intermediary, for the ordinary skill in the art to be to be connected directly, it can basis
Concrete condition understands the concrete meaning of above-mentioned term.
Gas sensor divides according to basis material, can be divided into organic polymer system of metal oxide system solid electrolyte
System, divides according to tested gas, can be divided into Pollution Gas, toxic gas, imflammable gas and oxygen-containing gas sensing
Device etc..Currently, for the sensor in terms of carbon dioxide there are many type, for example, infra red type, solid electrolyte, resistor-type,
Capacitive, surface acoustic wave type and semi-conductor type etc., wherein semi-conductor type carbon dioxide sensor is in the sensitivity, response time, steady
Qualitative aspect has advantage.
Perovskite structural material is typically referred to ABX3The compound of type structure, A, B and X are respectively big in the compound
Radius cation, minor radius cation and anion；Perovskite composite oxides have unique crystal structure, especially mix at it
The crystal defect structure and performance formed after miscellaneous can be applied to solid fuel cell, solid electrolyte, sensor, solid electricity
Hinder the fields such as device.In recent years, perovskite oxide (ABO3) is especially made due to its good selectivity, high sensitivity and stability
For CO2Sensor gas sensitive obtains great development.SnO2 belongs to cubic system, has rutile structure, has N-shaped half
Conductor features, chemical property are more stable.
At present for gas sensor, no matter in technique or in performance, there is the place for being unable to meet demand, exist
The problems such as such as stability is poor, drift is big, catalyst poisoning, thus it is desirable to develop ideal novel sensor, or
It is improved.Sensor of the invention is based on perovskite material and designs a kind of detection in combination with SnO2 nano material
The gas sensor of CO2.
Embodiment one
Fig. 1 is a kind of safety seat used for vehicle shown according to an exemplary embodiment characterized by comprising
Seat body 11；
CO2 gas sensor 12 is configured to determine traffic safety seat place when the vehicles are inoperative
CO2 concentration in cockpit；And
Controller 13 is configured to determine the cockpit based on the concentration in cockpit when the vehicles are inoperative
It is occupied by occupant.
Preferably, the CO2 gas sensor 12 is located at the lower a quarter of the seat body 11 calculated by volume
Position.
Preferably, such as Fig. 2, the CO2 gas sensor 12 is by insulating ceramics 1, electrode 2, sensitive layer and heating unit group
At；The insulating ceramics 1 is rectangular shape hollow along its length；The electrode 2 is two annular copper electrodes, respectively
Positioned at the both sides of the length direction of the insulating ceramics 1, cover the leading flank of the insulating ceramics 1, trailing flank, above and under
Face, the width of the electrode 2 are 0.5cm；The heating unit is located at the hollow inside of the insulating ceramics 1；The sensitive layer point
For the porous structure for thering is pore creating material calcium carbonate to be formed in sensitive layer A3 and sensitive layer B4, the sensitive layer A3 and sensitive layer B4, institute
State the upper surface of insulating ceramics and be followed successively by sensitive layer A3, sensitive layer B4 from inside to outside, below the insulating ceramics from outside to inside according to
Secondary is sensitive layer A3, sensitive layer B4；Sensitive material is HoFeO3 nano-powder in the sensitive layer A3；The sensitive layer B4 is sensitive
Material is SnO2 powder.
Preferably, such as Fig. 3, the preparation of the CO2 gas sensor 12 the following steps are included:
Step 1 prepares insulating ceramics 1
Being chosen for length × width × height 4 is the rectangular plate insulating ceramics of cm × 2cm × 1cm, and insulating ceramics passes through acetone, second
Alcohol is cleaned by ultrasonic 10min, then one layer of Cu film, as electrode, Cu film is deposited on the length direction both sides of insulating ceramics in drying
With a thickness of 800nm.
Step 2 prepares sensitive material:
Main component is perovskite type metal oxide HoFeO3 nano-powder in sensitive layer A3, and preparation process is as follows:
The Ho2O3 of 25g is weighed first, and weighs suitable Fe according to the ratio that 3 molar ratio of Ho2O3:Fe (NO3) is 1:2
(NO3) 39H2O, according to n (Ho3++Fe3+): n (citric acid)=1:3 molar ratio weighs proper amount of citric acid, by Ho2O3
It is dissolved in nitric acid and forms solution A, Fe (NO3) 9H2O and citric acid are dissolved in deionized water and form solution B, solution A and solution B are each
From ultrasonic 10min, then solution A and solution B are mixed, form solution C；Solution C is placed in water-bath crucible, under the conditions of 90 DEG C
Then gel is taken out, is placed in drying box, dried at 120 DEG C until gel state by heating water bath；Then xerogel is used
Mortar is fully ground, and is placed in Muffle furnace, the heating and thermal insulation 2h at 350 DEG C, and then temperature is increased to 740 DEG C, and anneal 8h, natural
It is cooling, it is rear to regrind, obtain HoFeO3 nano-powder.
Main component is SnO2 powder in sensitive layer B4, and preparation process is as follows:
Firstly, weighing suitable SnCl45H2O, it is dissolved in deionized water, prepares the solution for becoming 0.2M, be doped and added to
The ZnSO4 that molar percentage is 7%, then according to n (Sn4+): citric acid, ultrasound is added in n (citric acid)=17:1 molar ratio
30min is handled, with the ammonia water titration of 0.2M, the precipitating of Sn (OH) 4 is obtained, the oxalic acid back dissolving of 0.5M is used after precipitating is filtered, washed,
4 colloidal sol of Sn (OH) is obtained, then obtains SnO2 powder after drying concentration heat treatment.
Step 3 prepares anti-corrosion material
Epoxy resin and ethyl acetate and n-butanol equal solvent are mixed in a certain ratio and are added in dispersion cup,
100rpm/min is added with stirring zinc powder and dispersing agent, levelling agent, defoaming agent after mixing evenly, and pigments and fillers high speed dispersion 5 is added
Then~10min is added nano TiO 2 and stirs evenly, adjusts viscosity with solvent, stand 5~8min, obtain the anti-corrosion rich in zinc
Coating；
Step 4 prepares gas sensor
A) the HoFeO3 nano-powder and calcium carbonate powder for taking step to obtain mix in mortar, and a small amount of deionized water is added
2h is ground, ground paste is evenly coated in the upper surface of insulating ceramics in step 1, with a thickness of 5 μm, forms sensitive layer A3；
B) it takes SnO2 powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will be ground
Paste be evenly coated in step 1 below insulating ceramics, with a thickness of 5 μm, formed sensitive layer B4；
C) it takes SnO2 powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will be ground
Paste be evenly coated in the upper surface of insulating ceramics in step 1, with a thickness of 3 μm, formed sensitive layer B4；
D) it takes HoFeO3 nano-powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will
Ground paste is evenly coated in step 1 below insulating ceramics, with a thickness of 3 μm, forms sensitive layer A3；
(e) insulating ceramics of sensitive layer 90 DEG C of dry 2h in drying box will be coated with, the insulating ceramics after drying is put into
It is sintered at 590 DEG C in batch-type furnace, since the decomposition of calcium carbonate will form porous structure in sensitive layer A3 and sensitive layer B4, then
It takes out to its natural cooling；
(f) it learns from else's experience anticorrosive paint made from step 3, after slightly stirring, is coated on through the processed insulating ceramics of step e
On, it is placed in and dries 5~10min at room temperature, be then coated with the second layer and third layer, every coating is primary, dry 5~10min, i.e.,
Three layers of corrosion-inhibiting coating can be obtained, corrosion-inhibiting coating overall thickness is 5~10 μm；
(g) it encapsulates: heating unit is assembled into the hollow space through the processed insulating ceramics of step f, give insulating ceramics
Electrode and heating unit welding lead, encapsulation.
Experiment test:
(1) sensitivity, response time and stability test: gas sensor is accessed into test circuit, and is placed it in
In test chamber, suitable load is selected, cavity is sealed.Firstly, resistance value of the sensor in pure air is calculated, so
Under test gas CO2 is injected according to a certain concentration, certain speed afterwards, guarantees invariablenes pressure of liquid in cavity, is calculated in certain concentration
Resistance value in CO2 gas obtains the sensitivity of sensor；Using this method,
Above insulating ceramics, HoFeO3 nano-powder and calcium carbonate powder molar ratio are 12:1, sensitive layer in sensitive layer A
SnO2 powder and calcium carbonate powder molar ratio are 9:1 in B；
Insulating ceramics is in the following, SnO2 powder and calcium carbonate powder molar ratio are 12:1 in sensitive layer B, in sensitive layer A
HoFeO3 nano-powder and calcium carbonate powder molar ratio are 9:1, also, when insulating ceramics sintering time is 5h,
Response time, the repeatability data of sensor are calculated.Test discovery, under the CO2 environment of 100ppm, this hair
The optimum sensitivity of bright gas sensor is 6.3, response time 15s, repeats 200 tests, results change is less than 5%.
(2) waterproof anti-corrosion performance is tested
The sensor of no brushing anti-corrosion material is respectively placed in water with the sensor for being painted with anti-corrosion material, 1%
HCl solution and 5% NaOH solution in, above-mentioned dip time be 2d, 7d, 15d, 20d.The experimental results showed that not brushing anti-
The sensor of rotten material layer occurs as soon as blushing when 7d, and the brushing preserving timber bed of material just starts to occur in 20d
Slight blushing, water resistance are significantly higher.In terms of corrosion resistance, identical phenomenon, explanation are also shown
The corrosive nature of its acid-fast alkali-proof is good.
The application safety seat promptly and accurately can detect exceeded CO2 content, and prompt passengers pay attention to personal safety.
Embodiment two
Fig. 1 is a kind of safety seat used for vehicle shown according to an exemplary embodiment characterized by comprising
Seat body 11；
CO2 gas sensor 12 is configured to determine traffic safety seat place when the vehicles are inoperative
CO2 concentration in cockpit；And
Controller 13 is configured to determine the cockpit based on the concentration in cockpit when the vehicles are inoperative
It is occupied by occupant.
Preferably, the CO2 gas sensor 12 is located at the lower a quarter of the seat body 11 calculated by volume
Position.
Preferably, such as Fig. 2, the CO2 gas sensor 12 is by insulating ceramics 1, electrode 2, sensitive layer and heating unit group
At；The insulating ceramics 1 is rectangular shape hollow along its length；The electrode 2 is two annular copper electrodes, respectively
Positioned at the both sides of the length direction of the insulating ceramics 1, cover the leading flank of the insulating ceramics 1, trailing flank, above and under
Face, the width of the electrode 2 are 0.5cm；The heating unit is located at the hollow inside of the insulating ceramics 1；The sensitive layer point
For the porous structure for thering is pore creating material calcium carbonate to be formed in sensitive layer A3 and sensitive layer B4, the sensitive layer A3 and sensitive layer B4, institute
State the upper surface of insulating ceramics and be followed successively by sensitive layer A3, sensitive layer B4 from inside to outside, below the insulating ceramics from outside to inside according to
Secondary is sensitive layer A3, sensitive layer B4；Sensitive material is HoFeO3 nano-powder in the sensitive layer A3；The sensitive layer B4 is sensitive
Material is SnO2 powder.
Preferably, such as Fig. 3, the preparation of the CO2 gas sensor 12 the following steps are included:
Step 1 prepares insulating ceramics 1
Being chosen for length × width × height 4 is the rectangular plate insulating ceramics of cm × 2cm × 1cm, and insulating ceramics passes through acetone, second
Alcohol is cleaned by ultrasonic 10min, then one layer of Cu film, as electrode, Cu film is deposited on the length direction both sides of insulating ceramics in drying
With a thickness of 800nm.
Step 2 prepares sensitive material:
Main component is perovskite type metal oxide HoFeO3 nano-powder in sensitive layer A3, and preparation process is as follows:
The Ho2O3 of 25g is weighed first, and weighs suitable Fe according to the ratio that 3 molar ratio of Ho2O3:Fe (NO3) is 1:2
(NO3) 39H2O, according to n (Ho3++Fe3+): n (citric acid)=1:3 molar ratio weighs proper amount of citric acid, by Ho2O3
It is dissolved in nitric acid and forms solution A, Fe (NO3) 9H2O and citric acid are dissolved in deionized water and form solution B, solution A and solution B are each
From ultrasonic 10min, then solution A and solution B are mixed, form solution C；Solution C is placed in water-bath crucible, under the conditions of 90 DEG C
Then gel is taken out, is placed in drying box, dried at 120 DEG C until gel state by heating water bath；Then xerogel is used
Mortar is fully ground, and is placed in Muffle furnace, the heating and thermal insulation 2h at 350 DEG C, and then temperature is increased to 740 DEG C, and anneal 8h, natural
It is cooling, it is rear to regrind, obtain HoFeO3 nano-powder.
Main component is SnO2 powder in sensitive layer B4, and preparation process is as follows:
Firstly, weighing suitable SnCl45H2O, it is dissolved in deionized water, prepares the solution for becoming 0.2M, be doped and added to
The ZnSO4 that molar percentage is 7%, then according to n (Sn4+): citric acid, ultrasound is added in n (citric acid)=17:1 molar ratio
30min is handled, with the ammonia water titration of 0.2M, the precipitating of Sn (OH) 4 is obtained, the oxalic acid back dissolving of 0.5M is used after precipitating is filtered, washed,
4 colloidal sol of Sn (OH) is obtained, then obtains SnO2 powder after drying concentration heat treatment.
Step 3 prepares anti-corrosion material
Epoxy resin and ethyl acetate and n-butanol equal solvent are mixed in a certain ratio and are added in dispersion cup,
100rpm/min is added with stirring zinc powder and dispersing agent, levelling agent, defoaming agent after mixing evenly, and pigments and fillers high speed dispersion 5 is added
Then~10min is added nano TiO 2 and stirs evenly, adjusts viscosity with solvent, stand 5~8min, obtain the anti-corrosion rich in zinc
Coating；
Step 4 prepares gas sensor
A) the HoFeO3 nano-powder and calcium carbonate powder for taking step to obtain mix in mortar, and a small amount of deionized water is added
2h is ground, ground paste is evenly coated in the upper surface of insulating ceramics in step 1, with a thickness of 5 μm, forms sensitive layer A3；
B) it takes SnO2 powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will be ground
Paste be evenly coated in step 1 below insulating ceramics, with a thickness of 5 μm, formed sensitive layer B4；
C) it takes SnO2 powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will be ground
Paste be evenly coated in the upper surface of insulating ceramics in step 1, with a thickness of 3 μm, formed sensitive layer B4；
D) it takes HoFeO3 nano-powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will
Ground paste is evenly coated in step 1 below insulating ceramics, with a thickness of 3 μm, forms sensitive layer A3；
(e) insulating ceramics of sensitive layer 90 DEG C of dry 2h in drying box will be coated with, the insulating ceramics after drying is put into
It is sintered at 590 DEG C in batch-type furnace, since the decomposition of calcium carbonate will form porous structure in sensitive layer A3 and sensitive layer B4, then
It takes out to its natural cooling；
(f) it learns from else's experience anticorrosive paint made from step 3, after slightly stirring, is coated on through the processed insulating ceramics of step e
On, it is placed in and dries 5~10min at room temperature, be then coated with the second layer and third layer, every coating is primary, dry 5~10min, i.e.,
Three layers of corrosion-inhibiting coating can be obtained, corrosion-inhibiting coating overall thickness is 5~10 μm；
(g) it encapsulates: heating unit is assembled into the hollow space through the processed insulating ceramics of step f, give insulating ceramics
Electrode and heating unit welding lead, encapsulation.
Experiment test:
(1) sensitivity, response time and stability test: gas sensor is accessed into test circuit, and is placed it in
In test chamber, suitable load is selected, cavity is sealed.Firstly, resistance value of the sensor in pure air is calculated, so
Under test gas CO2 is injected according to a certain concentration, certain speed afterwards, guarantees invariablenes pressure of liquid in cavity, is calculated in certain concentration
Resistance value in CO2 gas obtains the sensitivity of sensor；Using this method,
Above insulating ceramics, HoFeO3 nano-powder and calcium carbonate powder molar ratio are 11:1, sensitive layer in sensitive layer A
SnO2 powder and calcium carbonate powder molar ratio are 9:1 in B；
Insulating ceramics is in the following, SnO2 powder and calcium carbonate powder molar ratio are 11:1 in sensitive layer B, in sensitive layer A
HoFeO3 nano-powder and calcium carbonate powder molar ratio are 9:1, also, when insulating ceramics sintering time is 5h,
Response time, the repeatability data of sensor are calculated.Test discovery, under the CO2 environment of 100ppm, this hair
The optimum sensitivity of bright gas sensor be 6.1, response time 16s, repeat 200 times test, results change less than 5%,
And the result linearity is good, and recovery time is short, and temperature resistant range is wide.
(2) waterproof anti-corrosion performance is tested
The sensor of no brushing anti-corrosion material is respectively placed in water with the sensor for being painted with anti-corrosion material, 1%
HCl solution and 5% NaOH solution in, above-mentioned dip time be 2d, 7d, 15d, 20d.The experimental results showed that not brushing anti-
The sensor of rotten material layer occurs as soon as blushing when 7d, and the brushing preserving timber bed of material just starts to occur in 20d
Slight blushing, water resistance are significantly higher.In terms of corrosion resistance, identical phenomenon, explanation are also shown
The corrosive nature of its acid-fast alkali-proof is good.
The application safety seat promptly and accurately can detect exceeded CO2 content, and prompt passengers pay attention to personal safety.
Embodiment three
Fig. 1 is a kind of safety seat used for vehicle shown according to an exemplary embodiment characterized by comprising
Seat body 11；
CO2 gas sensor 12 is configured to determine traffic safety seat place when the vehicles are inoperative
CO2 concentration in cockpit；And
Controller 13 is configured to determine the cockpit based on the concentration in cockpit when the vehicles are inoperative
It is occupied by occupant.
Preferably, the CO2 gas sensor 12 is located at the lower a quarter of the seat body 11 calculated by volume
Position.
Preferably, such as Fig. 2, the CO2 gas sensor 12 is by insulating ceramics 1, electrode 2, sensitive layer and heating unit group
At；The insulating ceramics 1 is rectangular shape hollow along its length；The electrode 2 is two annular copper electrodes, respectively
Positioned at the both sides of the length direction of the insulating ceramics 1, cover the leading flank of the insulating ceramics 1, trailing flank, above and under
Face, the width of the electrode 2 are 0.5cm；The heating unit is located at the hollow inside of the insulating ceramics 1；The sensitive layer point
For the porous structure for thering is pore creating material calcium carbonate to be formed in sensitive layer A3 and sensitive layer B4, the sensitive layer A3 and sensitive layer B4, institute
State the upper surface of insulating ceramics and be followed successively by sensitive layer A3, sensitive layer B4 from inside to outside, below the insulating ceramics from outside to inside according to
Secondary is sensitive layer A3, sensitive layer B4；Sensitive material is HoFeO3 nano-powder in the sensitive layer A3；The sensitive layer B4 is sensitive
Material is SnO2 powder.
Preferably, such as Fig. 3, the preparation of the CO2 gas sensor 12 the following steps are included:
Step 1 prepares insulating ceramics 1
Being chosen for length × width × height 4 is the rectangular plate insulating ceramics of cm × 2cm × 1cm, and insulating ceramics passes through acetone, second
Alcohol is cleaned by ultrasonic 10min, then one layer of Cu film, as electrode, Cu film is deposited on the length direction both sides of insulating ceramics in drying
With a thickness of 800nm.
Step 2 prepares sensitive material:
Main component is perovskite type metal oxide HoFeO3 nano-powder in sensitive layer A3, and preparation process is as follows:
The Ho2O3 of 25g is weighed first, and weighs suitable Fe according to the ratio that 3 molar ratio of Ho2O3:Fe (NO3) is 1:2
(NO3) 39H2O, according to n (Ho3++Fe3+): n (citric acid)=1:3 molar ratio weighs proper amount of citric acid, by Ho2O3
It is dissolved in nitric acid and forms solution A, Fe (NO3) 9H2O and citric acid are dissolved in deionized water and form solution B, solution A and solution B are each
From ultrasonic 10min, then solution A and solution B are mixed, form solution C；Solution C is placed in water-bath crucible, under the conditions of 90 DEG C
Then gel is taken out, is placed in drying box, dried at 120 DEG C until gel state by heating water bath；Then xerogel is used
Mortar is fully ground, and is placed in Muffle furnace, the heating and thermal insulation 2h at 350 DEG C, and then temperature is increased to 740 DEG C, and anneal 8h, natural
It is cooling, it is rear to regrind, obtain HoFeO3 nano-powder.
Main component is SnO2 powder in sensitive layer B4, and preparation process is as follows:
Firstly, weighing suitable SnCl45H2O, it is dissolved in deionized water, prepares the solution for becoming 0.2M, be doped and added to
The ZnSO4 that molar percentage is 7%, then according to n (Sn4+): citric acid, ultrasound is added in n (citric acid)=17:1 molar ratio
30min is handled, with the ammonia water titration of 0.2M, the precipitating of Sn (OH) 4 is obtained, the oxalic acid back dissolving of 0.5M is used after precipitating is filtered, washed,
4 colloidal sol of Sn (OH) is obtained, then obtains SnO2 powder after drying concentration heat treatment.
Step 3 prepares anti-corrosion material
Epoxy resin and ethyl acetate and n-butanol equal solvent are mixed in a certain ratio and are added in dispersion cup,
100rpm/min is added with stirring zinc powder and dispersing agent, levelling agent, defoaming agent after mixing evenly, and pigments and fillers high speed dispersion 5 is added
Then~10min is added nano TiO 2 and stirs evenly, adjusts viscosity with solvent, stand 5~8min, obtain the anti-corrosion rich in zinc
Coating；
Step 4 prepares gas sensor
A) the HoFeO3 nano-powder and calcium carbonate powder for taking step to obtain mix in mortar, and a small amount of deionized water is added
2h is ground, ground paste is evenly coated in the upper surface of insulating ceramics in step 1, with a thickness of 5 μm, forms sensitive layer A3；
B) it takes SnO2 powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will be ground
Paste be evenly coated in step 1 below insulating ceramics, with a thickness of 5 μm, formed sensitive layer B4；
C) it takes SnO2 powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will be ground
Paste be evenly coated in the upper surface of insulating ceramics in step 1, with a thickness of 3 μm, formed sensitive layer B4；
D) it takes HoFeO3 nano-powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will
Ground paste is evenly coated in step 1 below insulating ceramics, with a thickness of 3 μm, forms sensitive layer A3；
(e) insulating ceramics of sensitive layer 90 DEG C of dry 2h in drying box will be coated with, the insulating ceramics after drying is put into
It is sintered at 590 DEG C in batch-type furnace, since the decomposition of calcium carbonate will form porous structure in sensitive layer A3 and sensitive layer B4, then
It takes out to its natural cooling；
(f) it learns from else's experience anticorrosive paint made from step 3, after slightly stirring, is coated on through the processed insulating ceramics of step e
On, it is placed in and dries 5~10min at room temperature, be then coated with the second layer and third layer, every coating is primary, dry 5~10min, i.e.,
Three layers of corrosion-inhibiting coating can be obtained, corrosion-inhibiting coating overall thickness is 5~10 μm；
(g) it encapsulates: heating unit is assembled into the hollow space through the processed insulating ceramics of step f, give insulating ceramics
Electrode and heating unit welding lead, encapsulation.
Experiment test:
(1) sensitivity, response time and stability test: gas sensor is accessed into test circuit, and is placed it in
In test chamber, suitable load is selected, cavity is sealed.Firstly, resistance value of the sensor in pure air is calculated, so
Under test gas CO2 is injected according to a certain concentration, certain speed afterwards, guarantees invariablenes pressure of liquid in cavity, is calculated in certain concentration
Resistance value in CO2 gas obtains the sensitivity of sensor；Using this method,
Above insulating ceramics, HoFeO3 nano-powder and calcium carbonate powder molar ratio are 10:1, sensitive layer in sensitive layer A
SnO2 powder and calcium carbonate powder molar ratio are 9:1 in B；
Insulating ceramics is in the following, SnO2 powder and calcium carbonate powder molar ratio are 10:1 in sensitive layer B, in sensitive layer A
HoFeO3 nano-powder and calcium carbonate powder molar ratio are 9:1, also, when insulating ceramics sintering time is 5h,
Response time, the repeatability data of sensor are calculated.Test discovery, under the CO2 environment of 100ppm, this hair
The optimum sensitivity of bright gas sensor be 6.1, response time 15s, repeat 200 times test, results change less than 5%,
And the result linearity is good, and recovery time is short, and temperature resistant range is wide.
(2) waterproof anti-corrosion performance is tested
The sensor of no brushing anti-corrosion material is respectively placed in water with the sensor for being painted with anti-corrosion material, 1%
HCl solution and 5% NaOH solution in, above-mentioned dip time be 2d, 7d, 15d, 20d.The experimental results showed that not brushing anti-
The sensor of rotten material layer occurs as soon as blushing when 7d, and the brushing preserving timber bed of material just starts to occur in 20d
Slight blushing, water resistance are significantly higher.In terms of corrosion resistance, identical phenomenon, explanation are also shown
The corrosive nature of its acid-fast alkali-proof is good.
The application safety seat promptly and accurately can detect exceeded CO2 content, and prompt passengers pay attention to personal safety.
Example IV
Fig. 1 is a kind of safety seat used for vehicle shown according to an exemplary embodiment characterized by comprising
Seat body 11；
CO2 gas sensor 12 is configured to determine traffic safety seat place when the vehicles are inoperative
CO2 concentration in cockpit；And
Controller 13 is configured to determine the cockpit based on the concentration in cockpit when the vehicles are inoperative
It is occupied by occupant.
Preferably, the CO2 gas sensor 12 is located at the lower a quarter of the seat body 11 calculated by volume
Position.
Preferably, such as Fig. 2, the CO2 gas sensor 12 is by insulating ceramics 1, electrode 2, sensitive layer and heating unit group
At；The insulating ceramics 1 is rectangular shape hollow along its length；The electrode 2 is two annular copper electrodes, respectively
Positioned at the both sides of the length direction of the insulating ceramics 1, cover the leading flank of the insulating ceramics 1, trailing flank, above and under
Face, the width of the electrode 2 are 0.5cm；The heating unit is located at the hollow inside of the insulating ceramics 1；The sensitive layer point
For the porous structure for thering is pore creating material calcium carbonate to be formed in sensitive layer A3 and sensitive layer B4, the sensitive layer A3 and sensitive layer B4, institute
State the upper surface of insulating ceramics and be followed successively by sensitive layer A3, sensitive layer B4 from inside to outside, below the insulating ceramics from outside to inside according to
Secondary is sensitive layer A3, sensitive layer B4；Sensitive material is HoFeO3 nano-powder in the sensitive layer A3；The sensitive layer B4 is sensitive
Material is SnO2 powder.
Preferably, such as Fig. 3, the preparation of the CO2 gas sensor 12 the following steps are included:
Step 1 prepares insulating ceramics 1
Being chosen for length × width × height 4 is the rectangular plate insulating ceramics of cm × 2cm × 1cm, and insulating ceramics passes through acetone, second
Alcohol is cleaned by ultrasonic 10min, then one layer of Cu film, as electrode, Cu film is deposited on the length direction both sides of insulating ceramics in drying
With a thickness of 800nm.
Step 2 prepares sensitive material:
Main component is perovskite type metal oxide HoFeO3 nano-powder in sensitive layer A3, and preparation process is as follows:
The Ho2O3 of 25g is weighed first, and weighs suitable Fe according to the ratio that 3 molar ratio of Ho2O3:Fe (NO3) is 1:2
(NO3) 39H2O, according to n (Ho3++Fe3+): n (citric acid)=1:3 molar ratio weighs proper amount of citric acid, by Ho2O3
It is dissolved in nitric acid and forms solution A, Fe (NO3) 9H2O and citric acid are dissolved in deionized water and form solution B, solution A and solution B are each
From ultrasonic 10min, then solution A and solution B are mixed, form solution C；Solution C is placed in water-bath crucible, under the conditions of 90 DEG C
Then gel is taken out, is placed in drying box, dried at 120 DEG C until gel state by heating water bath；Then xerogel is used
Mortar is fully ground, and is placed in Muffle furnace, the heating and thermal insulation 2h at 350 DEG C, and then temperature is increased to 740 DEG C, and anneal 8h, natural
It is cooling, it is rear to regrind, obtain HoFeO3 nano-powder.
Main component is SnO2 powder in sensitive layer B4, and preparation process is as follows:
Firstly, weighing suitable SnCl45H2O, it is dissolved in deionized water, prepares the solution for becoming 0.2M, be doped and added to
The ZnSO4 that molar percentage is 7%, then according to n (Sn4+): citric acid, ultrasound is added in n (citric acid)=17:1 molar ratio
30min is handled, with the ammonia water titration of 0.2M, the precipitating of Sn (OH) 4 is obtained, the oxalic acid back dissolving of 0.5M is used after precipitating is filtered, washed,
4 colloidal sol of Sn (OH) is obtained, then obtains SnO2 powder after drying concentration heat treatment.
Step 3 prepares anti-corrosion material
Epoxy resin and ethyl acetate and n-butanol equal solvent are mixed in a certain ratio and are added in dispersion cup,
100rpm/min is added with stirring zinc powder and dispersing agent, levelling agent, defoaming agent after mixing evenly, and pigments and fillers high speed dispersion 5 is added
Then~10min is added nano TiO 2 and stirs evenly, adjusts viscosity with solvent, stand 5~8min, obtain the anti-corrosion rich in zinc
Coating；
Step 4 prepares gas sensor
A) the HoFeO3 nano-powder and calcium carbonate powder for taking step to obtain mix in mortar, and a small amount of deionized water is added
2h is ground, ground paste is evenly coated in the upper surface of insulating ceramics in step 1, with a thickness of 5 μm, forms sensitive layer A3；
B) it takes SnO2 powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will be ground
Paste be evenly coated in step 1 below insulating ceramics, with a thickness of 5 μm, formed sensitive layer B4；
C) it takes SnO2 powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will be ground
Paste be evenly coated in the upper surface of insulating ceramics in step 1, with a thickness of 3 μm, formed sensitive layer B4；
D) it takes HoFeO3 nano-powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will
Ground paste is evenly coated in step 1 below insulating ceramics, with a thickness of 3 μm, forms sensitive layer A3；
(e) insulating ceramics of sensitive layer 90 DEG C of dry 2h in drying box will be coated with, the insulating ceramics after drying is put into
It is sintered at 590 DEG C in batch-type furnace, since the decomposition of calcium carbonate will form porous structure in sensitive layer A3 and sensitive layer B4, then
It takes out to its natural cooling；
(f) it learns from else's experience anticorrosive paint made from step 3, after slightly stirring, is coated on through the processed insulating ceramics of step e
On, it is placed in and dries 5~10min at room temperature, be then coated with the second layer and third layer, every coating is primary, dry 5~10min, i.e.,
Three layers of corrosion-inhibiting coating can be obtained, corrosion-inhibiting coating overall thickness is 5~10 μm；
(g) it encapsulates: heating unit is assembled into the hollow space through the processed insulating ceramics of step f, give insulating ceramics
Electrode and heating unit welding lead, encapsulation.
Experiment test:
(1) sensitivity, response time and stability test: gas sensor is accessed into test circuit, and is placed it in
In test chamber, suitable load is selected, cavity is sealed.Firstly, resistance value of the sensor in pure air is calculated, so
Under test gas CO2 is injected according to a certain concentration, certain speed afterwards, guarantees invariablenes pressure of liquid in cavity, is calculated in certain concentration
Resistance value in CO2 gas obtains the sensitivity of sensor；Using this method,
Above insulating ceramics, HoFeO3 nano-powder and calcium carbonate powder molar ratio are 9:1, sensitive layer B in sensitive layer A
Middle SnO2 powder and calcium carbonate powder molar ratio are 9:1；
Insulating ceramics is in the following, SnO2 powder and calcium carbonate powder molar ratio are 9:1, HoFeO3 in sensitive layer A in sensitive layer B
Nano-powder and calcium carbonate powder molar ratio are 9:1, also, when insulating ceramics sintering time is 5h,
Response time, the repeatability data of sensor are calculated.Test discovery, under the CO2 environment of 100ppm, this hair
The optimum sensitivity of bright gas sensor be 6.1, response time 17s, repeat 200 times test, results change less than 5%,
And the result linearity is good, and recovery time is short, and temperature resistant range is wide.
(2) waterproof anti-corrosion performance is tested
The sensor of no brushing anti-corrosion material is respectively placed in water with the sensor for being painted with anti-corrosion material, 1%
HCl solution and 5% NaOH solution in, above-mentioned dip time be 2d, 7d, 15d, 20d.The experimental results showed that not brushing anti-
The sensor of rotten material layer occurs as soon as blushing when 7d, and the brushing preserving timber bed of material just starts to occur in 20d
Slight blushing, water resistance are significantly higher.In terms of corrosion resistance, identical phenomenon, explanation are also shown
The corrosive nature of its acid-fast alkali-proof is good.
The application safety seat promptly and accurately can detect exceeded CO2 content, and prompt passengers pay attention to personal safety.
Embodiment five
Fig. 1 is a kind of safety seat used for vehicle shown according to an exemplary embodiment characterized by comprising
Seat body 11；
CO2 gas sensor 12 is configured to determine traffic safety seat place when the vehicles are inoperative
CO2 concentration in cockpit；And
Controller 13 is configured to determine the cockpit based on the concentration in cockpit when the vehicles are inoperative
It is occupied by occupant.
Preferably, the CO2 gas sensor 12 is located at the lower a quarter of the seat body 11 calculated by volume
Position.
Preferably, such as Fig. 2, the CO2 gas sensor 12 is by insulating ceramics 1, electrode 2, sensitive layer and heating unit group
At；The insulating ceramics 1 is rectangular shape hollow along its length；The electrode 2 is two annular copper electrodes, respectively
Positioned at the both sides of the length direction of the insulating ceramics 1, cover the leading flank of the insulating ceramics 1, trailing flank, above and under
Face, the width of the electrode 2 are 0.5cm；The heating unit is located at the hollow inside of the insulating ceramics 1；The sensitive layer point
For the porous structure for thering is pore creating material calcium carbonate to be formed in sensitive layer A3 and sensitive layer B4, the sensitive layer A3 and sensitive layer B4, institute
State the upper surface of insulating ceramics and be followed successively by sensitive layer A3, sensitive layer B4 from inside to outside, below the insulating ceramics from outside to inside according to
Secondary is sensitive layer A3, sensitive layer B4；Sensitive material is HoFeO3 nano-powder in the sensitive layer A3；The sensitive layer B4 is sensitive
Material is SnO2 powder.
Preferably, such as Fig. 3, the preparation of the CO2 gas sensor 12 the following steps are included:
Step 1 prepares insulating ceramics 1
Being chosen for length × width × height 4 is the rectangular plate insulating ceramics of cm × 2cm × 1cm, and insulating ceramics passes through acetone, second
Alcohol is cleaned by ultrasonic 10min, then one layer of Cu film, as electrode, Cu film is deposited on the length direction both sides of insulating ceramics in drying
With a thickness of 800nm.
Step 2 prepares sensitive material:
Main component is perovskite type metal oxide HoFeO3 nano-powder in sensitive layer A3, and preparation process is as follows:
The Ho2O3 of 25g is weighed first, and weighs suitable Fe according to the ratio that 3 molar ratio of Ho2O3:Fe (NO3) is 1:2
(NO3) 39H2O, according to n (Ho3++Fe3+): n (citric acid)=1:3 molar ratio weighs proper amount of citric acid, by Ho2O3
It is dissolved in nitric acid and forms solution A, Fe (NO3) 9H2O and citric acid are dissolved in deionized water and form solution B, solution A and solution B are each
From ultrasonic 10min, then solution A and solution B are mixed, form solution C；Solution C is placed in water-bath crucible, under the conditions of 90 DEG C
Then gel is taken out, is placed in drying box, dried at 120 DEG C until gel state by heating water bath；Then xerogel is used
Mortar is fully ground, and is placed in Muffle furnace, the heating and thermal insulation 2h at 350 DEG C, and then temperature is increased to 740 DEG C, and anneal 8h, natural
It is cooling, it is rear to regrind, obtain HoFeO3 nano-powder.
Main component is SnO2 powder in sensitive layer B4, and preparation process is as follows:
Firstly, weighing suitable SnCl45H2O, it is dissolved in deionized water, prepares the solution for becoming 0.2M, be doped and added to
The ZnSO4 that molar percentage is 7%, then according to n (Sn4+): citric acid, ultrasound is added in n (citric acid)=17:1 molar ratio
30min is handled, with the ammonia water titration of 0.2M, the precipitating of Sn (OH) 4 is obtained, the oxalic acid back dissolving of 0.5M is used after precipitating is filtered, washed,
4 colloidal sol of Sn (OH) is obtained, then obtains SnO2 powder after drying concentration heat treatment.
Step 3 prepares anti-corrosion material
Epoxy resin and ethyl acetate and n-butanol equal solvent are mixed in a certain ratio and are added in dispersion cup,
100rpm/min is added with stirring zinc powder and dispersing agent, levelling agent, defoaming agent after mixing evenly, and pigments and fillers high speed dispersion 5 is added
Then~10min is added nano TiO 2 and stirs evenly, adjusts viscosity with solvent, stand 5~8min, obtain the anti-corrosion rich in zinc
Coating；
Step 4 prepares gas sensor
A) the HoFeO3 nano-powder and calcium carbonate powder for taking step to obtain mix in mortar, and a small amount of deionized water is added
2h is ground, ground paste is evenly coated in the upper surface of insulating ceramics in step 1, with a thickness of 5 μm, forms sensitive layer A3；
B) it takes SnO2 powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will be ground
Paste be evenly coated in step 1 below insulating ceramics, with a thickness of 5 μm, formed sensitive layer B4；
C) it takes SnO2 powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will be ground
Paste be evenly coated in the upper surface of insulating ceramics in step 1, with a thickness of 3 μm, formed sensitive layer B4；
D) it takes HoFeO3 nano-powder and calcium carbonate powder to mix in mortar, a small amount of deionized water grinding 2h is added, it will
Ground paste is evenly coated in step 1 below insulating ceramics, with a thickness of 3 μm, forms sensitive layer A3；
(e) insulating ceramics of sensitive layer 90 DEG C of dry 2h in drying box will be coated with, the insulating ceramics after drying is put into
It is sintered at 590 DEG C in batch-type furnace, since the decomposition of calcium carbonate will form porous structure in sensitive layer A3 and sensitive layer B4, then
It takes out to its natural cooling；
(f) it learns from else's experience anticorrosive paint made from step 3, after slightly stirring, is coated on through the processed insulating ceramics of step e
On, it is placed in and dries 5~10min at room temperature, be then coated with the second layer and third layer, every coating is primary, dry 5~10min, i.e.,
Three layers of corrosion-inhibiting coating can be obtained, corrosion-inhibiting coating overall thickness is 5~10 μm；
(g) it encapsulates: heating unit is assembled into the hollow space through the processed insulating ceramics of step f, give insulating ceramics
Electrode and heating unit welding lead, encapsulation.
Experiment test:
(1) sensitivity, response time and stability test: gas sensor is accessed into test circuit, and is placed it in
In test chamber, suitable load is selected, cavity is sealed.Firstly, resistance value of the sensor in pure air is calculated, so
Under test gas CO2 is injected according to a certain concentration, certain speed afterwards, guarantees invariablenes pressure of liquid in cavity, is calculated in certain concentration
Resistance value in CO2 gas obtains the sensitivity of sensor；Using this method,
Above insulating ceramics, HoFeO3 nano-powder and calcium carbonate powder molar ratio are 8:1, sensitive layer B in sensitive layer A
Middle SnO2 powder and calcium carbonate powder molar ratio are 9:1；
Insulating ceramics is in the following, SnO2 powder and calcium carbonate powder molar ratio are 8:1, HoFeO3 in sensitive layer A in sensitive layer B
Nano-powder and calcium carbonate powder molar ratio are 9:1, also, when insulating ceramics sintering time is 5h,
Response time, the repeatability data of sensor are calculated.Test discovery, under the CO2 environment of 100ppm, this hair
The optimum sensitivity of bright gas sensor be 5.2, response time 27s, repeat 200 times test, results change less than 9%,
And the result linearity is good, and recovery time is short, and temperature resistant range is wide.
(2) waterproof anti-corrosion performance is tested
The sensor of no brushing anti-corrosion material is respectively placed in water with the sensor for being painted with anti-corrosion material, 1%
HCl solution and 5% NaOH solution in, above-mentioned dip time be 2d, 7d, 15d, 20d.The experimental results showed that not brushing anti-
The sensor of rotten material layer occurs as soon as blushing when 7d, and the brushing preserving timber bed of material just starts to occur in 20d
Slight blushing, water resistance are significantly higher.In terms of corrosion resistance, identical phenomenon, explanation are also shown
The corrosive nature of its acid-fast alkali-proof is good.
The application safety seat promptly and accurately can detect exceeded CO2 content, and prompt passengers pay attention to personal safety.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows general principle of the invention and including the undocumented common knowledge in the art of the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by above
Claim is pointed out.
Claims (2)
1. a kind of safety seat used for vehicle characterized by comprising seat body；
CO2Gas sensor is configured to determine that the safety seat used for vehicle is present when the vehicles are inoperative
CO in cabin2Concentration；And
Controller is configured to when the vehicles are inoperative based on the CO in cockpit2Concentration determines that the cockpit is multiplied
Seated user occupies；
The CO2Gas sensor is made of insulating ceramics, electrode, sensitive layer and heating unit；The insulating ceramics is along its length
Spend the hollow rectangular shape in direction；The electrode is two annular copper electrodes, is located at the length side of the insulating ceramics
To both sides, cover the leading flank of the insulating ceramics, trailing flank, above and below, the width of the electrode is 0.5cm；Institute
It states heating unit and is located at the hollow inside of the insulating ceramics；The sensitive layer is divided into sensitive layer A3 and sensitive layer B4, the sensitivity
The porous structure for having pore creating material calcium carbonate to be formed in layer A3 and sensitive layer B4, the upper surface of described insulating ceramics are followed successively by from inside to outside
Sensitive layer A3, sensitive layer B4 are followed successively by sensitive layer A3, sensitive layer B4 below the insulating ceramics from outside to inside；The sensitivity
Sensitive material is HoFeO in layer A33Nano-powder；The sensitive layer B4 sensitive material is SnO2Powder；
The CO2The preparation of gas sensor the following steps are included:
Step 1 prepares insulating ceramics
Selection length × width × height is the rectangular plate insulating ceramics of 4cm × 2cm × 1cm, and insulating ceramics passes through acetone, EtOH Sonicate
Clean 10min, then one layer of Cu film is deposited on the length direction both sides of insulating ceramics in drying, as electrode, Cu film with a thickness of
800nm；
Step 2 prepares sensitive material:
Main component is perovskite type metal oxide HoFeO in sensitive layer A33Nano-powder, preparation process are as follows:
The Ho of 25g is weighed first2O3, and according to Ho2O3: Fe (NO3)3Molar ratio is that the ratio of 1:2 weighs suitable Fe (NO3)3·
9H2O, according to n (Ho3++Fe3+): n (citric acid)=1:3 molar ratio weighs proper amount of citric acid, by Ho2O3It is dissolved in nitric acid
Solution A is formed, by Fe (NO3)3·9H2O and citric acid, which are dissolved in deionized water, forms solution B, and solution A and solution B are respectively ultrasonic
Then 10min mixes solution A and solution B, form solution C；Solution C is placed in water-bath, water-bath adds under the conditions of 90 DEG C
Then gel is taken out, is placed in drying box, dried at 120 DEG C until gel state by heat；Then xerogel is filled with mortar
Divide grinding, is placed in Muffle furnace, the heating and thermal insulation 2h at 350 DEG C, then temperature is increased to 740 DEG C, and anneal 8h, natural cooling,
After regrind, obtain HoFeO3Nano-powder；
Main component is SnO in sensitive layer B42Powder, preparation process are as follows:
Firstly, weighing suitable SnCl4·5H2O is dissolved in deionized water, is prepared the solution for becoming 0.2mol/L, is doped and added to
The ZnSO that molar percentage is 7%4, then according to n (Sn4+): citric acid, ultrasound is added in n (citric acid)=17:1 molar ratio
It handles 30min and obtains Sn (OH) with the ammonia water titration of 0.2mol/L4Precipitating, with 0.5mol/L's after precipitating is filtered, washed
Oxalic acid back dissolving obtains Sn (OH)4Then colloidal sol obtains SnO after drying concentration heat treatment2Powder；
Step 3 prepares anti-corrosion material
Epoxy resin and ethyl acetate and n-butanol equal solvent are mixed in a certain ratio and are added in dispersion cup, in 100rpm/
Min is added with stirring zinc powder and dispersing agent, levelling agent, defoaming agent after mixing evenly, and 5~10min of pigments and fillers high speed dispersion is added,
Then nano-TiO is added2It stirs evenly, adjusts viscosity with solvent, stand 5~8min, obtain the anticorrosive paint rich in zinc；
Step 4 prepares gas sensor
A) HoFeO for taking step to obtain3Nano-powder and calcium carbonate powder mix in mortar, and a small amount of deionized water grinding is added
Ground paste is evenly coated in the upper surface of insulating ceramics in step 1 by 2h, with a thickness of 5 μm, forms sensitive layer A3；
B) SnO is taken2Powder and calcium carbonate powder mix in mortar, a small amount of deionized water grinding 2h are added, by ground paste
Object is evenly coated in step 1 below insulating ceramics, with a thickness of 5 μm, forms sensitive layer B4；
C) SnO is taken2Powder and calcium carbonate powder mix in mortar, a small amount of deionized water grinding 2h are added, by ground paste
Object is evenly coated in the upper surface of insulating ceramics in step 1, with a thickness of 3 μm, forms sensitive layer B4；
D) HoFeO is taken3Nano-powder and calcium carbonate powder mix in mortar, and a small amount of deionized water grinding 2h is added, will be ground
Paste be evenly coated in step 1 below insulating ceramics, with a thickness of 3 μm, formed sensitive layer A3；
E) insulating ceramics of sensitive layer 90 DEG C of dry 2h in drying box will be coated with, the insulating ceramics after drying is put into batch-type furnace
In be sintered at 590 DEG C, since the decomposition of calcium carbonate will form porous structure in sensitive layer A3 and sensitive layer B4, then take out to
Its natural cooling；
F) it learns from else's experience anticorrosive paint made from step 3, after slightly stirring, is coated on through setting on the processed insulating ceramics of step e
5~10min is dried at room temperature, is then coated with the second layer and third layer, and every coating is primary, and dry 5~10min can be obtained
To three layers of corrosion-inhibiting coating, corrosion-inhibiting coating overall thickness is 5~10 μm；
G) it encapsulates: heating unit being assembled into the hollow space through the processed insulating ceramics of step f, to the electrode of insulating ceramics
With heating unit welding lead, encapsulation.
2. safety seat as described in claim 1, which is characterized in that the CO2Gas sensor is located at the seat body
Position at the lower a quarter calculated by volume.
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| WO2002092401A1 (en) * | 2001-05-15 | 2002-11-21 | Stoneridge Control Device, Inc. | Child seat sensor assembly |
| US7009386B2 (en) * | 2002-01-02 | 2006-03-07 | Stoneridge Control Devices, Inc. | Non-contact position sensor utilizing multiple sensor elements |
| CN102005254A (en) * | 2010-09-15 | 2011-04-06 | 合肥左天电子科技有限公司 | Electric insulation material for lamellar detection element of gas sensor and preparation method thereof |
| US20160103111A1 (en) * | 2014-10-14 | 2016-04-14 | Delphi Technolgies, Inc. | Occupant safety system with c02 detection |
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