CN109604261A - A kind of laser cleaner anti-condensation closed-loop control system - Google Patents
A kind of laser cleaner anti-condensation closed-loop control system Download PDFInfo
- Publication number
- CN109604261A CN109604261A CN201811505235.0A CN201811505235A CN109604261A CN 109604261 A CN109604261 A CN 109604261A CN 201811505235 A CN201811505235 A CN 201811505235A CN 109604261 A CN109604261 A CN 109604261A
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- temperature
- laser
- dew
- bodies
- laser bodies
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The embodiment of the invention discloses a kind of laser cleaner anti-condensation closed-loop control systems, the laser cleaner anti-condensation closed-loop control system includes: the laser bodies being connected respectively with PLC controller, Temperature Humidity Sensor, cooling-water machine, air conditioner, the Temperature Humidity Sensor measures laser bodies local environment temperature, humidity and dew-point temperature, measurement result is sent to PLC controller, the temperature element measurement laser bodies temperature of the laser bodies is simultaneously sent to PLC controller, the PLC controller is according to dew-point temperature, temperature in laser bodies is adjusted by control cooling-water machine, laser bodies ambient temperature is adjusted by control air conditioner, until laser bodies temperature and laser bodies ambient temperature are higher than dew-point temperature, form closed-loop control system.The present invention solves the problems, such as that laser circuit board easy-to-rust damages caused by condensing due to facet surface.
Description
Technical field
The present embodiments relate to laser cleaning apparatus fields, and in particular to a kind of laser cleaner anti-condensation closed loop control
System processed.
Background technique
Traditional cleaning of objects method is often contact cleaning, has mechanicals efforts to cleaning object surface, damages object
The surface of body or the medium of cleaning are attached to the surface of cleaned object, not can be removed, and generate secondary pollution.Laser cleaning is
The cleaning way of a new generation, laser cleaning make these problems be readily solved without grinding with untouchable；Laser cleaning can be clear
Except various types of pollutants on a variety of materials surface, reach the cleannes routinely cleaned and be unable to reach.But also it can be not
The selectively pollutant on cleaning material surface in the case where attacking material surface；Laser cleaning is high-efficient, saves the time.
Preventing laser moisture condensation is the maintenance emphasis of laser.Moisture condensation just refers to that body surface temperature is revealed lower than neighbouring air
There is the phenomenon that condensed water in surface when point temperature, once there is the aggregation of circuit board dewdrop, it will lead to sensor corrosion, plated film damage
Wound reduces laser service performance, shortens the service life of laser, or even damage laser.
Summary of the invention
For this purpose, the embodiment of the present invention provides a kind of laser cleaner anti-condensation closed-loop control system, to solve existing skill
The problem of laser circuit board easy-to-rust damages caused by being condensed in art due to facet surface.
To achieve the goals above, embodiments of the present invention provide the following technical solutions:
In the first aspect of embodiments of the present invention, a kind of laser cleaner anti-condensation closed-loop control system is provided
System, comprising: laser bodies, Temperature Humidity Sensor, cooling-water machine, air conditioner and PLC controller, laser bodies, temperature and humidity pass
Sensor, cooling-water machine and air conditioner are connected with PLC controller, and the Temperature Humidity Sensor measures laser bodies local environment
Temperature, humidity and dew-point temperature, measurement result are sent to PLC controller, and the temperature element of the laser bodies measures laser
Device body temperature is simultaneously sent to PLC controller, and the PLC controller adjusts laser according to dew-point temperature, by control cooling-water machine
This body temperature of device adjusts laser bodies ambient temperature by control air conditioner, up to laser bodies temperature and swashs
Light device ontology ambient temperature is higher than dew-point temperature, forms closed-loop control system.
Preferably, the temperature element carries out modbus communication by RS-232C serial communication module and PLC controller,
Measurement result is sent to PLC controller.
Preferably, the Temperature Humidity Sensor is mounted in laser bodies, and Temperature Humidity Sensor measures laser bodies
Temperature, humidity and the dew-point temperature information of ambient enviroment, Temperature Humidity Sensor are controlled by RS-232C serial communication module and PLC
Device processed carries out modbus communication, and temperature, humidity and the dew-point temperature information of laser bodies ambient enviroment are sent to PLC control
Device.
Preferably, the cooling-water machine is mounted on inside laser bodies, cooling-water machine by RS-485 serial communication module with
PLC carries out modbus communication.
Preferably, the air conditioner is disposed adjacent with laser bodies, air conditioner by RS-485 serial communication module with
PL C carries out modbus communication.
Preferably, the water pipe of the cooling-water machine fits with laser bodies inner wall, passes through lower water temperature laser bodies
Temperature.
Preferably, the air conditioner is disposed adjacent with laser bodies, and the wind of air conditioner is recycled in laser external, is adjusted
Laser ambient temperature.
Preferably, the PLC controller is calculated according to laser bodies temperature and laser bodies ambient temperature
Dew-point temperature, the calculated dew-point temperature of PLC controller are compared with the dew-point temperature that Temperature Humidity Sensor measures, error compared with
Big then measured again, until obtaining best dew point temperature value, dew-point temperature information is sent to cooling-water machine and air conditioner, setting
Cooling-water machine temperature and air conditioner temperature are higher than dew-point temperature.
Embodiment according to the present invention, the laser cleaner anti-condensation closed-loop control system have the advantages that
The embodiment of the invention discloses a kind of laser cleaner anti-condensation closed-loop control systems, pacify in laser bodies
Temperature Humidity Sensor is filled, the Temperature Humidity Sensor and laser bodies measure ambient temperature, dew-point temperature respectively and swash
Light device ontology own temperature, measurement result are sent to PLC controller, according to dew-point temperature PLC controller to cooling-water machine and air-conditioning
Machine sends set temperature value, and adjusting cooling-water machine and air conditioner makes laser bodies temperature and ambient temperature be higher than dew point temperature
Degree prevents moisture condensation damage laser on laser.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
Fig. 1 is a kind of connection signal for laser cleaner anti-condensation closed-loop control system that the embodiment of the present invention provides
Figure.
Fig. 2 is the control flow chart for the laser cleaner anti-condensation closed-loop control system that the embodiment of the present invention provides.
In figure: 1- laser bodies, 2- Temperature Humidity Sensor, 3- cooling-water machine, 4- air conditioner, 5-PLC controller.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
The term on cited such as "upper", "lower", " left side ", the right side in this specification ", " centre ", is merely convenient to describe
Be illustrated, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing technology without essence
It inside holds, when being also considered as the enforceable scope of the present invention.
Embodiment
With reference to Fig. 1, present embodiment discloses a kind of laser cleaner anti-condensation closed-loop control system, the laser cleanings
Device anti-condensation closed-loop control system includes: laser bodies 1, Temperature Humidity Sensor 2, cooling-water machine 3, air conditioner 4 and PLC control
Device 5, laser bodies 1, Temperature Humidity Sensor 2, cooling-water machine 3 and air conditioner 4 are connected with PLC controller 5, the temperature and humidity
Sensor 2 measures 1 local environment temperature of laser bodies, humidity and dew-point temperature, measurement result and is sent to PLC controller 5, institute
Laser bodies 1 are stated to measure own temperature and be sent to PLC controller 5.
Temperature element is provided in the laser bodies 1, laser bodies 1 can measure own temperature, laser sheet
Body 1 carries out modbus communication by RS-232C serial communication module and PLC controller 5, and measurement result is sent to PLC controller
5, the Temperature Humidity Sensor 2 is mounted in laser bodies 1, and Temperature Humidity Sensor 2 measures 1 ambient enviroment of laser bodies
Temperature, humidity and dew-point temperature information, Temperature Humidity Sensor 2 are carried out by RS-232C serial communication module and PLC controller 5
Modbus communication, temperature, humidity and the dew-point temperature information of 1 ambient enviroment of laser bodies are sent to PLC controller 5.
RS-323C standard: being American Electronics Industry Association (EIA) and International Telegraph and Telephone Advisory Committee (CCITT) is
A kind of standard that serial communication device is formulated.Standard regulation: RS-232C provides logic level, -3V--15V using negative logic
For logic " 1 " level ,+3V-+15V is " 0 " level.
Modbus communications protocol: being applied to a kind of all-purpose language on electronic controller.Pass through this agreement, controller phase
Between mutually, controller can communicate via between network (such as Ethernet) and other equipment.It has become a universal industrial
Standard.Industrial network can be linked to be by the control equipment that modbus communications protocol different vendor produces, carry out Centralized Monitoring.
The cooling-water machine 3 is mounted on inside laser bodies 1, cooling-water machine 3 by RS-485 serial communication module and PLC into
Row modbus communication, water pipe and 1 inner wall of laser bodies of the cooling-water machine 3 fit, and pass through lower water temperature laser bodies 1
Temperature, the air conditioner 4 are disposed adjacent with laser bodies 1, and air conditioner 4 is carried out by RS-485 serial communication module and PL C
Modbus communication, the air conditioner 4 are disposed adjacent with laser bodies 1, and the wind of air conditioner 4 is recycled in laser external, are adjusted
Laser ambient temperature.
RS-485 standard: American Electronics Industry Association (EIA) is formulated and issues RS-485 standard, and through Telecommunications Industries Association
(TIA) TIA/EIA-485-A, referred to as RS-485 standard are named as after revising.RS-485 standard compensate for RS-232 communication away from
The disadvantage low from short, rate.RS-485 uses differential signal negative logic, and+2V~+6V indicates " 0 ", and -6V~-2V indicates " 1 ".
With reference to Fig. 2, the PLC controller 5 is according to 1 ambient temperature of 1 temperature of laser bodies and laser bodies, wet
Degree calculates dew-point temperature, and condensed water occurs in surface when moisture condensation just refers to body surface temperature lower than neighbouring air dew point temperature
Phenomenon, the dew-point temperature measured according to environment temperature and the calculated dew-point temperature of PLC controller 5 and Temperature Humidity Sensor 2 into
Row compares, and is measured again when difference is more than 2 DEG C, until difference takes the calculated dew point temperature of PLC controller 5 less than 2 DEG C
The average value for the dew-point temperature that degree is measured with Temperature Humidity Sensor 2 is best dew point temperature value, and dew-point temperature information is sent to cold
Water dispenser 3 and air conditioner 4, set 3 temperature of cooling-water machine and 4 temperature of air conditioner is slightly above dew-point temperature, guarantee 1 surface of laser bodies
It will not condense.
PLC controller 5 adjusts the temperature of cooling-water machine 3 according to dew-point temperature, and air conditioner 4 is to 1 ambient enviroment of laser bodies
Temperature is adjusted, and Temperature Humidity Sensor 2 and laser bodies 1 constantly survey environment temperature and 1 temperature of laser bodies
PLC controller 5 is measured and feeds back to, PLC controller 5 judges 1 temperature conditions of environment temperature and laser bodies, until laser sheet
1 temperature of body and 1 ambient temperature of laser bodies are higher than dew-point temperature, form closed-loop control system.
The present invention solves the problems, such as facet surface moisture condensation, and by closed-loop control system, automatic adjustment makes laser sheet
1 temperature of body is higher than dew-point temperature, extends the service life of laser bodies 1.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (8)
1. a kind of laser cleaner anti-condensation closed-loop control system, which is characterized in that the laser cleaner anti-condensation is closed
Ring control system includes: laser bodies (1), Temperature Humidity Sensor (2), cooling-water machine (3), air conditioner (4) and PLC controller
(5), laser bodies (1), Temperature Humidity Sensor (2), cooling-water machine (3) and air conditioner (4) are connected with PLC controller (5),
Described Temperature Humidity Sensor (2) measurement laser bodies (1) local environment temperature, humidity and dew-point temperature, measurement result are sent
To PLC controller (5), temperature element measurement laser bodies (1) temperature of the laser bodies (1) is simultaneously sent to PLC control
Device (5) processed, the PLC controller (5) adjust temperature in laser bodies (1) according to dew-point temperature, by control cooling-water machine (3)
Degree adjusts laser bodies (1) ambient temperature by control air conditioner (4), until laser bodies (1) temperature and laser
Device ontology (1) ambient temperature is higher than dew-point temperature, forms closed-loop control system.
2. a kind of laser cleaner anti-condensation closed-loop control system as described in claim 1, which is characterized in that the thermometric
Element carries out modbus communication by RS-232C serial communication module and PLC controller (5), and measurement result is sent to PLC control
Device (5).
3. a kind of laser cleaner anti-condensation closed-loop control system as described in claim 1, which is characterized in that described warm and humid
Degree sensor (2) is mounted on laser bodies (1), and Temperature Humidity Sensor (2) measures the temperature of laser bodies (1) ambient enviroment
Degree, humidity and dew-point temperature information, Temperature Humidity Sensor (2) by RS-232C serial communication module and PLC controller (5) into
Row modbus communication, the temperature, humidity and dew-point temperature information of laser bodies (1) ambient enviroment are sent to PLC controller
(5)。
4. a kind of laser cleaner anti-condensation closed-loop control system as described in claim 1, which is characterized in that the cold water
Machine (3) is mounted on laser bodies (1) inside, and cooling-water machine (3) carries out modbus by RS-485 serial communication module and PLC and leads to
News.
5. a kind of laser cleaner anti-condensation closed-loop control system as described in claim 1, which is characterized in that the air-conditioning
Machine (4) is disposed adjacent with laser bodies (1), and air conditioner (4) carries out modbus by RS-485 serial communication module and PLC and leads to
News.
6. a kind of laser cleaner anti-condensation closed-loop control system as described in claim 1, which is characterized in that the cold water
The water pipe of machine (3) fits with laser bodies (1) inner wall, passes through lower water temperature laser bodies (1) temperature.
7. a kind of laser cleaner anti-condensation closed-loop control system as described in claim 1, which is characterized in that the air-conditioning
Machine (4) is disposed adjacent with laser bodies (1), and the wind of air conditioner (4) is recycled in laser external, adjusts laser ambient enviroment
Temperature.
8. a kind of laser cleaner anti-condensation closed-loop control system as described in claim 1, which is characterized in that the PLC
Controller (5) calculates dew-point temperature, PLC control according to laser bodies (1) temperature and laser bodies (1) ambient temperature
The calculated dew-point temperature of device (5) processed is compared with the dew-point temperature that Temperature Humidity Sensor (2) measures, and error is larger, carries out
It measures again, until obtaining best dew point temperature value, dew-point temperature information is sent to cooling-water machine (3) and air conditioner (4), sets cold
Water dispenser (3) temperature and air conditioner (4) temperature are higher than dew-point temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505235.0A CN109604261A (en) | 2018-12-10 | 2018-12-10 | A kind of laser cleaner anti-condensation closed-loop control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505235.0A CN109604261A (en) | 2018-12-10 | 2018-12-10 | A kind of laser cleaner anti-condensation closed-loop control system |
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| CN109604261A true CN109604261A (en) | 2019-04-12 |
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| CN201811505235.0A Pending CN109604261A (en) | 2018-12-10 | 2018-12-10 | A kind of laser cleaner anti-condensation closed-loop control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201310A (en) * | 2019-06-19 | 2019-09-06 | 山东杰美医疗科技有限公司 | It is a kind of can online combination control semiconductor cooling water dispenser and its working method |
| CN110471132A (en) * | 2019-08-23 | 2019-11-19 | 国网山东省电力公司济南供电公司 | The method for monitoring outdoor ring main unit or feeder pillar condensation on-line |
| CN110625279A (en) * | 2019-09-28 | 2019-12-31 | 浙江泰好科技股份有限公司 | Anti-condensation device for laser equipment |
| CN112834900A (en) * | 2020-12-30 | 2021-05-25 | 广州奥松电子有限公司 | PCB board detects machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103455064A (en) * | 2013-08-09 | 2013-12-18 | 徐州中欧科技有限公司 | Anti-condensation protection system and anti-condensation protection method of laser output port |
| CN103701014A (en) * | 2013-12-26 | 2014-04-02 | 中国科学院半导体研究所 | Special portable tool box for laser |
| CN104083211A (en) * | 2014-07-17 | 2014-10-08 | 山东杰美医疗科技有限公司 | Method for protecting semiconductor laser device in semiconductor laser hair removal instrument |
| CN107579429A (en) * | 2016-07-04 | 2018-01-12 | 深圳市光峰光电技术有限公司 | Semiconductor laser and its temprature control method |
| CN107678458A (en) * | 2017-11-13 | 2018-02-09 | 北京镭创高科光电科技有限公司 | A kind of method, apparatus and system for controlling refrigerating plant condensation |
| CN207780570U (en) * | 2017-09-25 | 2018-08-28 | 江苏高雷德电力科技有限公司 | Environment quality intelligence control system for transformer station |
| CN108539564A (en) * | 2018-02-26 | 2018-09-14 | 大族激光科技产业集团股份有限公司 | A kind of anti-condensation device and method of laser system |
-
2018
- 2018-12-10 CN CN201811505235.0A patent/CN109604261A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103455064A (en) * | 2013-08-09 | 2013-12-18 | 徐州中欧科技有限公司 | Anti-condensation protection system and anti-condensation protection method of laser output port |
| CN103701014A (en) * | 2013-12-26 | 2014-04-02 | 中国科学院半导体研究所 | Special portable tool box for laser |
| CN104083211A (en) * | 2014-07-17 | 2014-10-08 | 山东杰美医疗科技有限公司 | Method for protecting semiconductor laser device in semiconductor laser hair removal instrument |
| CN107579429A (en) * | 2016-07-04 | 2018-01-12 | 深圳市光峰光电技术有限公司 | Semiconductor laser and its temprature control method |
| CN207780570U (en) * | 2017-09-25 | 2018-08-28 | 江苏高雷德电力科技有限公司 | Environment quality intelligence control system for transformer station |
| CN107678458A (en) * | 2017-11-13 | 2018-02-09 | 北京镭创高科光电科技有限公司 | A kind of method, apparatus and system for controlling refrigerating plant condensation |
| CN108539564A (en) * | 2018-02-26 | 2018-09-14 | 大族激光科技产业集团股份有限公司 | A kind of anti-condensation device and method of laser system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201310A (en) * | 2019-06-19 | 2019-09-06 | 山东杰美医疗科技有限公司 | It is a kind of can online combination control semiconductor cooling water dispenser and its working method |
| CN110201310B (en) * | 2019-06-19 | 2024-05-07 | 山东杰美医疗科技有限公司 | Semiconductor water chiller capable of being controlled in online combination and working method thereof |
| CN110471132A (en) * | 2019-08-23 | 2019-11-19 | 国网山东省电力公司济南供电公司 | The method for monitoring outdoor ring main unit or feeder pillar condensation on-line |
| CN110625279A (en) * | 2019-09-28 | 2019-12-31 | 浙江泰好科技股份有限公司 | Anti-condensation device for laser equipment |
| CN112834900A (en) * | 2020-12-30 | 2021-05-25 | 广州奥松电子有限公司 | PCB board detects machine |
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