CN108302376A - Has the LED street lamp of colour temperature handoff functionality - Google Patents
Has the LED street lamp of colour temperature handoff functionality Download PDFInfo
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- CN108302376A CN108302376A CN201711425790.8A CN201711425790A CN108302376A CN 108302376 A CN108302376 A CN 108302376A CN 201711425790 A CN201711425790 A CN 201711425790A CN 108302376 A CN108302376 A CN 108302376A
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- Prior art keywords
- colour temperature
- particle
- humidity sensor
- nano
- street lamp
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The present invention relates to a kind of LED street lamps having colour temperature handoff functionality, including light source and color temperature changeover module, and to switch colour temperature, the colour temperature changeover module includes：Humidity sensor, to detect the air humidity of surrounding；Driving device connects the humidity sensor；Colour temperature trimmer connects the driving device, to adjust the colour temperature for the light that the light source is sent out；The humidity sensor is a kind of zirconium oxide humidity sensor based on metal ion mixing；The humidity sensor is thick-film type, uses ceramic substrate for substrate, is equipped on the ceramic substrate and inserts finger electrode, and the slotting electrode that refers to is equipped with sensitive thin film, and the sensitive thin film is the ZrO doped with Ca, Ba, Ni2Film.
Description
Technical field
The present invention relates to lighting device technical field more particularly to a kind of LED street lamps having colour temperature handoff functionality.
Background technology
LED street lamp uses more and more extensive now, the use of LED street lamp is a kind of under the present situation of energy-saving and emission-reduction and environmental protection
Trend.Existing LED street lamp includes mainly lamp housing, power drives plate, LED circuit board, LED light and Transparent lamp shade.
But LED street lamp has a natural bottleneck to need to solve：It is area that existing LED street lamp was sent out, which is all colour temperature,
Between 5500-6000K cool white light, compared to traditional high-pressure sodium lamp street lamp, luminous efficiency has obtained very big promotion.
Good in weather condition, LED street lamp can substitute traditional high-pressure sodium lamp street lamp completely.However, special at some
Weather condition under, for example for fog precipitation weather, the illuminating effect of this cool white light can substantially reduce.Due to the Penetrating Fog of cool white light
Property is poor, to will have a direct impact on the Exploration on Train Operation Safety of fog precipitation weather.
Invention content
The present invention is intended to provide a kind of LED street lamp having colour temperature handoff functionality, set forth above to solve the problems, such as.
A kind of LED street lamp having colour temperature handoff functionality, including light source and color temperature are provided in the embodiment of the present invention
Changeover module, to switch colour temperature, the colour temperature changeover module includes：Humidity sensor, to detect the air humidity of surrounding；
Driving device connects the humidity sensor；Colour temperature trimmer connects the driving device, is sent out to adjust the light source
The colour temperature of the light gone out；
Wherein, in the state that the air humidity that the humidity sensor detects is more than a preset value, the color
Warm trimmer is driven by the driving device to a first position, and under the first position, the colour temperature trimmer is complete
Block before the light source, by the light that light source is sent out be adjusted to colour temperature 2000K-2700K warm yellow light；
In the state that the air humidity that the humidity sensor detects is no more than the preset value, the colour temperature
Trimmer is driven by the driving device to a second position, and the colour temperature trimmer does not block what the light source was sent out
Light；
The humidity sensor is a kind of zirconium oxide humidity sensor based on metal ion mixing；The humidity sensor
It for thick-film type, uses ceramic substrate for substrate, is equipped on the ceramic substrate and inserts finger electrode, slotting finger electrode is equipped with sensitive thin
Film, the sensitive thin film are the ZrO doped with Ca, Ba, Ni2Film.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.It should be understood that above general description and following detailed description are only
It is exemplary and explanatory, the present invention can not be limited.
Description of the drawings
Using attached drawing, the invention will be further described, but the embodiment in attached drawing does not constitute any limit to the present invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is the Structure explosion diagram of the present invention；
Fig. 2 is the partial sectional view of the present invention；
Fig. 3 is another partial sectional view of the present invention；
Fig. 4 is that the colour temperature trimmer of the present invention is located at the schematic diagram of first position；
Fig. 5 is that the colour temperature trimmer of the present invention is located at the schematic diagram of the second position.
Specific implementation mode
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 and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects being described in detail in claims, of the invention.
The embodiment of the present invention is related to a kind of LED street lamp having colour temperature handoff functionality, which includes mainly light source
With colour temperature changeover module, in conjunction with Fig. 1-5.
Wherein, the light source is similar with existing LED light, including power drives plate 4, LED circuit board 12, LED light 11.LED
Circuit board 12, which connects power drives plate 4 and LED light 11, LED light 11, can obtain electric energy.Herein LED light 11 using
LED lamp cup.LED lamp cup is to use LED, constant-flow driver, optical lens and metal or other radiators with high thermal conductivity coefficient
Illuminating lamp made of housing combination, using flashlight concentrating light principles, parabolic surface design can more effectively reduce light
Damage.
The colour temperature changeover module includes：Humidity sensor 5, driving device, colour temperature trimmer 10, humidity sensor 5 and drive
Dynamic device is all disposed on circuit board 3.According to the air humidity that humidity sensor 5 detects, colour temperature trimmer 10 passes through
Driving device is driven, under fog precipitation weather (air humidity that humidity sensor 5 detects is more than a preset value),
Before the driving to light source of colour temperature trimmer 10, to block light source, the light that light source is sent out is made to penetrate colour temperature trimmer 10, transformation
At colour temperature in the warm yellow light of 2000K-2700K, mist transmitting is can effectively improve, ensures traffic safety；And do not surpass in air humidity
When crossing this preset value, colour temperature trimmer 10 does not block light source, and the light that light source is sent out remains as original cool white light.
In the present embodiment, driving device includes motor 6, motor bearing 7 and reduction gearing 8, and motor 6 is arranged in horse
Up on bearing 7, colour temperature trimmer 10 includes colour temperature trimmer main body 101 and the tooth positioned at 101 side of colour temperature trimmer main body
Item 102, reduction gearing 8 is ratcheting between rack 102 and motor 6, motor 6 by reduction gearing 8 come band carry-over bar 102, to
So that colour temperature trimmer 10 is moved, and can prevent that 10 movement speed of colour temperature trimmer is too fast and damages.
Entire LED street lamp further includes that lamp housing 2 and Transparent lamp shade 9 have been internally divided into two skies in the present embodiment
Between, in the space that light source is disposed therein, and colour temperature trimmer 10 can move back and forth in the two spaces, to reach
It blocks light source and does not block the purpose of light source.As shown in figure 4, the air humidity detected in humidity sensor 5 is more than
In the case of preset value, colour temperature trimmer 10 is driven in the space where light source, has sheltered from light source, light source institute completely
The light sent out is sent out after adjusting colour temperature by colour temperature trimmer 10, can effectively improve the mist transmitting under fog precipitation weather；Such as Fig. 5 institutes
Show, in the case where air humidity is no more than scheduled value, colour temperature trimmer 10 is driven in another space, does not block light source
The light sent out, so as to effectively play luminous efficiency of LED light under the conditions of normal weather.
In order to reach better regulating effect, humidity sensor 5 of the present invention is a kind of based on metal ion mixing
Zirconium oxide humidity sensor.
Currently, in the humidity sensor of resistance-type, humidity-sensitive material is related to the materials such as ceramics, semiconductor, organic polymer,
Ceramic material is conducive to the absorption and release of hydrone because of its porous structure, and semi-conducting material can be divided into metal-oxide semiconductor (MOS)
And elemental semiconductor.Humidity sensor based on above-mentioned substance there is also sensitivity it is not high, stability is bad the shortcomings of.Wherein,
Zirconium oxide is a type oxide of zirconium, zirconium oxide with Cucumber is compound can be at different conditions to electricity, sound, light, gas, temperature etc.
Show sensitivity characteristic, compound zirconium oxide is widely used in the fields such as gas sensor, temperature sensor, pressure sensor.Mesh
Before, the technical solution by nanometer zirconium oxide for humidity sensor is few.
Humidity sensor of the present invention is thick-film type, uses ceramic substrate for substrate, is equipped with and inserts on the ceramic substrate
Refer to electrode, insert refer to electrode be equipped with sensitive thin film, the sensitive thin film thickness be 0.5mm, the sensitive thin film be doped with Ca,
The ZrO of Ba, Ni2Film.
Specifically, the sensitive thin film forming process is：
By ZrO2Nano-particle and CaCO3Particle mixes, and forms sensitive material A；
By ZrO2Nano-particle and BaCO3Particle mixes, and forms sensitive material B；
By ZrO2Nano-particle is mixed with NiO nano-particles, forms sensitive material C；
Sensitive material A, B, C obtained above are mixed, are placed in mortar, is then added dropwise and removes example water in right amount, grind 12h
After form paste, which is placed in crucible, calcines 50min, 160min respectively at 470 DEG C, 950 DEG C successively,
Then mixture after calcining is tuned into paste again, is inserted on the ceramic substrate for referring to electrode coated in carrying, after drying described in formation
Sensitive thin film.
Zirconium oxide is a kind of low acidic oxides, and chemical property is more stable, all to aqueous slkali and many acid solutions
With enough stability, the zirconium oxide after calcining is stablized by it.ZrO2With other materials are compound can be right at different conditions
Sensitivity characteristic, therefore, compound ZrO is unfolded in electricity, sound, light, gas, temperature and steam etc.2It is widely used in electronic ceramics and function
In the fields such as ceramics, mainly there are voltage component, filter, ultrasonic oscillator, buzzer and gas sensor, temperature sensor
Equal sensing elements, but its in terms of humidity sensor using less.Currently based on ZrO2The humidity sensor of film by
Exploitation, such as in ZrO28mol%Y is mixed in wet sensitive tabletting2O3Make stabilizer, while printing three Pt electricity on tabletting same plane
Pole, by ZrO2Wet sensitive tabletting forms humidity sensor after being calcined at 1500 DEG C.However, in the prior art, it is such as above-mentioned based on
ZrO2That there is sensitivity is relatively low for the humidity sensor of film, response resume speed is compared with the shortcomings of slow, stability is poor.
It is creative in ZrO in technical solution of the present invention2Doped with Ca, Ba, Ni in film, after calcining so that its
Eutectic is formed with each doped chemical, the micro-structure of material is changed, achieves unexpected technique effect so that the humidity
The sensitivity of sensor greatly improves, and shortens response recovery time.
ZrO recited above2Nano-particle is the commercial ZrO of purchase2, specially monocline ZrO2, grain size 50nm.
In sensitive material A, CaCO3Particle is calcium carbonate superfine powder, grain size 80nm, the ZrO2Nano-particle and CaCO3
The mass ratio of particle is 4:3.
Nano-calcium carbonate is product of the grain size of chemical synthesis calcium carbonate within the scope of 1~100nm, nano-calcium carbonate without
It is smelly, tasteless, nontoxic, stablize in an atmosphere, be a kind of functional form packing material, currently, nano-calcium carbonate be widely used in rubber,
The fields such as plastics, papermaking, coating；In rubber, nano-calcium carbonate can increase volume, improve the processing performance of rubber, such as
Increase elongation, tear resistance, compressive deformation etc.；In the plastic, nano-calcium carbonate can improve the dimensional stability of plastics, carry
The intensity and rigidity of high plastics, improve the processing performance of plastics.
Currently, by nano-calcium carbonate and humidity-sensitive material, the technical solution that especially zirconia material combines is few, the present invention
In, it is creative by nano-calcium carbonate and ZrO2Nano-particle mixes, and by calcining, forms eutectic, calcium ion being capable of part
Replacement zirconium ion, produce the technique effect of unexpected increase sensitivity, meanwhile, the gas energy of nano-calcium carbonate release
Enough so that sensitive thin film forms loose porous structure, be conducive to the contact area for increasing steam and sensitive thin film, and then increase
The sensitivity of sensitive thin film.
In sensitive material B, BaCO3Particle is ultrafine barium carbonate, grain size 200nm, the ZrO2Nano-particle with
BaCO3The mass ratio of particle is 7:2.
Barium carbonate is a kind of important basic chemical raw materials, is currently widely used for the necks such as building materials, metallurgy, electronics and chemical industry
Domain；In electronics industry, barium carbonate to X-ray with stronger screening ability, in glass and ceramic industry, barium carbonate conduct
Roasting additive can increase pouring property.
In technical solution of the present invention, barium carbonate nano particle is mixed with nano zircite also and is used as humidity-sensitive material, is passed through
Calcining forms eutectic, and barium ions is capable of the replacement zirconium ion of part, produces the technology effect of unexpected increase sensitivity
Fruit.
In sensitive material C, NiO nano particle diameters are 20nm, the ZrO2The matter of nano-particle and NiO nano particles
Amount is than being 13:5.
Specifically, being Pt electrodes in the slotting finger electrode, Pt electrode line width is 0.12mm, and it is 0.15mm to refer to spacing,
It inserts and refers to thickness of electrode as 0.1~0.2mm.
Embodiment 1
The preparation process of the humidity sensor is：
Step 1, it cleans, 2h will be impregnated with the slotting ceramic substrate for referring to electrode ethyl alcohol, be then cleaned by ultrasonic 20min, then
It spends example water to rinse several times, be dried for standby；
Step 2, sensitive material is coated：
By ZrO2Nano-particle and CaCO3Particle mixes, and forms sensitive material A；By ZrO2Nano-particle and BaCO3Particle
Mixing forms sensitive material B；By ZrO2Nano-particle is mixed with NiO nano-particles, forms sensitive material C；It will be obtained above
Sensitive material A, B, C mixing, is placed in mortar, is then added dropwise and removes example water in right amount, paste is formed after grinding 12h, by the paste
Mixture is placed in crucible, calcines 50min, 160min respectively at 470 DEG C, 950 DEG C successively, then again by mixture after calcining
It is secondary to be tuned into paste, it is coated in inserting on the ceramic substrate for referring to electrode, forms sensitive thin film；
Step 3, dry, aging：
The ceramic substrate for being coated with sensitive thin film is dried into 5h at 90 DEG C, after dry, under 100% relative humidity conditions,
Alternating voltage 2V is carried, frequency for 24 hours, obtains the humidity sensor for aging under the conditions of 1kHz.
In the present embodiment, the sensitive thin film thickness is 0.5mm；
In sensitive material A, CaCO3Particle is calcium carbonate superfine powder, grain size 80nm, the ZrO2Nano-particle and CaCO3
The mass ratio of particle is 4:3；
In sensitive material B, BaCO3Particle is ultrafine barium carbonate, grain size 200nm, the ZrO2Nano-particle with
BaCO3The mass ratio of particle is 7:2；
In sensitive material C, NiO nano particle diameters are 20nm, the ZrO2The matter of nano-particle and NiO nano particles
Amount is than being 13:5.
Embodiment 2
The preparation process of the humidity sensor is：
Step 1, it cleans, 2h will be impregnated with the slotting ceramic substrate for referring to electrode ethyl alcohol, be then cleaned by ultrasonic 20min, then
It spends example water to rinse several times, be dried for standby；
Step 2, sensitive material is coated：
By ZrO2Nano-particle and CaCO3Particle mixes, and forms sensitive material A；By ZrO2Nano-particle and BaCO3Particle
Mixing forms sensitive material B；By ZrO2Nano-particle is mixed with NiO nano-particles, forms sensitive material C；It will be obtained above
Sensitive material A, B, C mixing, is placed in mortar, is then added dropwise and removes example water in right amount, paste is formed after grinding 12h, by the paste
Mixture is placed in crucible, calcines 50min, 160min respectively at 470 DEG C, 950 DEG C successively, then again by mixture after calcining
It is secondary to be tuned into paste, it is coated in inserting on the ceramic substrate for referring to electrode, forms sensitive thin film；
Step 3, dry, aging：
The ceramic substrate for being coated with sensitive thin film is dried into 5h at 90 DEG C, after dry, under 100% relative humidity conditions,
Alternating voltage 2V is carried, frequency for 24 hours, obtains the humidity sensor for aging under the conditions of 1kHz.
In the present embodiment,
The sensitive thin film thickness is 0.9mm；
In sensitive material A, CaCO3Particle is calcium carbonate superfine powder, grain size 80nm, the ZrO2Nano-particle and CaCO3
The mass ratio of particle is 4:3；
In sensitive material B, BaCO3Particle is ultrafine barium carbonate, grain size 200nm, the ZrO2Nano-particle with
BaCO3The mass ratio of particle is 7:2；
In sensitive material C, NiO nano particle diameters are 20nm, the ZrO2The matter of nano-particle and NiO nano particles
Amount is than being 13:5.
Embodiment 3
The preparation process of the humidity sensor is：
Step 1, it cleans, 2h will be impregnated with the slotting ceramic substrate for referring to electrode ethyl alcohol, be then cleaned by ultrasonic 20min, then
It spends example water to rinse several times, be dried for standby；
Step 2, sensitive material is coated：
By ZrO2Nano-particle and CaCO3Particle mixes, and forms sensitive material A；By ZrO2Nano-particle and BaCO3Particle
Mixing forms sensitive material B；By ZrO2Nano-particle is mixed with NiO nano-particles, forms sensitive material C；It will be obtained above
Sensitive material A, B, C mixing, is placed in mortar, is then added dropwise and removes example water in right amount, paste is formed after grinding 12h, by the paste
Mixture is placed in crucible, calcines 50min, 160min respectively at 470 DEG C, 950 DEG C successively, then again by mixture after calcining
It is secondary to be tuned into paste, it is coated in inserting on the ceramic substrate for referring to electrode, forms sensitive thin film；
Step 3, dry, aging：
The ceramic substrate for being coated with sensitive thin film is dried into 5h at 90 DEG C, after dry, under 100% relative humidity conditions,
Alternating voltage 2V is carried, frequency for 24 hours, obtains the humidity sensor for aging under the conditions of 1kHz.
In the present embodiment,
The sensitive thin film thickness is 0.5mm；
In sensitive material A, CaCO3Particle is calcium carbonate superfine powder, grain size 80nm, the ZrO2Nano-particle and CaCO3
The mass ratio of particle is 4:1；
In sensitive material B, BaCO3Particle is ultrafine barium carbonate, grain size 200nm, the ZrO2Nano-particle with
BaCO3The mass ratio of particle is 7:2；
In sensitive material C, NiO nano particle diameters are 20nm, the ZrO2The matter of nano-particle and NiO nano particles
Amount is than being 13:5.
Humidity sensor of the present invention is measured in dew cell test system：
For the humidity sensor that each embodiment obtains, as the following table 1 be under identical measuring condition (25 DEG C, 20Hz),
Obtained sensitivity, response recovery time and stability data；
Wherein, stability is the variable quantity (%) of the sensitivity after duplicate measurements 1000 times under the same conditions.
The sensitivity characteristic for the humidity sensor that 1 each embodiment of table obtains
| Sensitivity k Ω (%RH)-1 | Response time s | Recovery time s | Stability % | |
| Embodiment 1 | 3406 | 2 | 27 | 4 |
| Embodiment 2 | 1083 | 32 | 269 | 7 |
| Embodiment 3 | 674 | 15 | 236 | 9 |
From upper it can be seen that, by adjusting sensitive thin film thickness and doping ratio, the humidity sensor that is obtained in embodiment 1
There is advantage in terms of sensitivity, response recovery time, stability, achieve unexpected technique effect.
The foregoing is merely the preferred modes of the present invention, are not intended to limit the invention, all spirit and original in the present invention
Within then, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. having the LED street lamp of colour temperature handoff functionality, which is characterized in that including light source and color temperature changeover module, to switch
Colour temperature, the colour temperature changeover module include：Humidity sensor, to detect the air humidity of surrounding；Driving device, described in connection
Humidity sensor；Colour temperature trimmer connects the driving device, to adjust the colour temperature for the light that the light source is sent out；
Wherein, in the state that the air humidity that the humidity sensor detects is more than a preset value, the colour temperature tune
Full wafer is driven by the driving device to a first position, and under the first position, the colour temperature trimmer blocks completely
Before the light source, by the light that light source is sent out be adjusted to colour temperature 2000K-2700K warm yellow light；
In the state that the air humidity that the humidity sensor detects is no more than the preset value, the colour temperature adjustment
Piece is driven by the driving device to a second position, and the colour temperature trimmer does not block the light that the light source is sent out；
The humidity sensor is a kind of zirconium oxide humidity sensor based on metal ion mixing；The humidity sensor is thickness
Membranous type uses ceramic substrate for substrate, is equipped on the ceramic substrate and inserts finger electrode, inserts finger electrode and is equipped with sensitive thin film, institute
It is the ZrO doped with Ca, Ba, Ni to state sensitive thin film2Film.
2. the LED street lamp according to claim 1 for having colour temperature handoff functionality, which is characterized in that the driving device packet
It includes：Motor, motor bearing and reduction gearing, the motor are arranged on the motor bearing；The colour temperature trimmer includes：
Colour temperature trimmer main body and rack, the rack are arranged in the side of the colour temperature trimmer main body；The reducing gear gear teeth
It closes between the motor and the rack, to be driven and slow down.
3. the LED street lamp according to claim 1 for having colour temperature handoff functionality, which is characterized in that the LED street lamp includes
One first space and a second space, the light source are arranged in first space or the second space, described first
Setting in the space where the light source, the second position is located in another space.
4. the LED street lamp according to claim 1 for having colour temperature handoff functionality, which is characterized in that the light source includes：Electricity
Source driving plate, LED circuit board and LED light, the LED circuit board connect the power drives plate and the LED light.
5. the LED street lamp according to claim 1 for having colour temperature handoff functionality, which is characterized in that the LED light is LED
Lamp cup.
6. the LED street lamp according to claim 1 for having colour temperature handoff functionality, which is characterized in that the humidity sensor
Preparation process be：
Step 1, it cleans, 2h will be impregnated with the slotting ceramic substrate for referring to electrode ethyl alcohol, be then cleaned by ultrasonic 20min, then spend
Example water rinses several times, is dried for standby；
Step 2, sensitive material is coated：
By ZrO2Nano-particle and CaCO3Particle mixes, and forms sensitive material A；By ZrO2Nano-particle and BaCO3Particle mixes,
Form sensitive material B；By ZrO2Nano-particle is mixed with NiO nano-particles, forms sensitive material C；By sensitivity obtained above
Materials A, B, C mixing, are placed in mortar, are then added dropwise and remove example water in right amount, form paste after grinding 12h, which is mixed
Object is placed in crucible, is calcined 50min, 160min respectively at 470 DEG C, 950 DEG C successively, is then adjusted mixture after calcining again
At paste, it is coated in inserting on the ceramic substrate for referring to electrode, forms sensitive thin film；The sensitive thin film thickness is 0.5mm；
Step 3, dry, aging：
The ceramic substrate for being coated with sensitive thin film is dried into 5h at 90 DEG C, after dry, under 100% relative humidity conditions, carry and hands over
Galvanic electricity presses 2V, frequency for 24 hours, to obtain the humidity sensor for aging under the conditions of 1kHz.
7. the LED street lamp according to claim 6 for having colour temperature handoff functionality, which is characterized in that the ZrO2Nanoparticle
Seed diameter is 50nm.
8. the LED street lamp according to claim 6 for having colour temperature handoff functionality, which is characterized in that in sensitive material A,
CaCO3Particle is calcium carbonate superfine powder, grain size 80nm, the ZrO2Nano-particle and CaCO3The mass ratio of particle is 4:3.
9. the LED street lamp according to claim 6 for having colour temperature handoff functionality, which is characterized in that in sensitive material B,
BaCO3Particle is ultrafine barium carbonate, grain size 200nm, the ZrO2Nano-particle and BaCO3The mass ratio of particle is 7:2.
10. the LED street lamp according to claim 6 for having colour temperature handoff functionality, which is characterized in that in sensitive material C,
NiO nano particle diameters are 20nm, the ZrO2The mass ratio of nano-particle and NiO nano particles is 13:5.
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| CN102854222A (en) * | 2012-09-27 | 2013-01-02 | 吉林大学 | Moisture-sensitive sensor based on potassium tantalite sensitive membrane and preparation method thereof |
| CN103953878A (en) * | 2014-04-23 | 2014-07-30 | 苏州工业职业技术学院 | LED (light emitting diode) road lamp with color temperature switching function |
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2017
- 2017-12-25 CN CN201711425790.8A patent/CN108302376A/en active Pending
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| CN1996656A (en) * | 1995-09-29 | 2007-07-11 | 高级电力设备公司 | Electrical energy devices using electroceramic fiber |
| CN101224981A (en) * | 2008-02-01 | 2008-07-23 | 华中科技大学 | Method for preparing nano metal oxide ceramic thin/thick film |
| CN102854222A (en) * | 2012-09-27 | 2013-01-02 | 吉林大学 | Moisture-sensitive sensor based on potassium tantalite sensitive membrane and preparation method thereof |
| CN103953878A (en) * | 2014-04-23 | 2014-07-30 | 苏州工业职业技术学院 | LED (light emitting diode) road lamp with color temperature switching function |
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