CN110440994A - A kind of waterproof performance detection method of plated film LED light strip - Google Patents
A kind of waterproof performance detection method of plated film LED light strip Download PDFInfo
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- CN110440994A CN110440994A CN201910754979.4A CN201910754979A CN110440994A CN 110440994 A CN110440994 A CN 110440994A CN 201910754979 A CN201910754979 A CN 201910754979A CN 110440994 A CN110440994 A CN 110440994A
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- led light
- plated film
- water
- light strip
- tested
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/40—Investigating fluid-tightness of structures by using electric means, e.g. by observing electric discharges
Abstract
A kind of waterproof performance detection method of plated film LED light strip, comprising the following steps: (1) tested plated film LED light strip is put into detection device；(2) energization is lighted tested plated film LED light strip and is preheated；(3) water and pressure-air are successively injected in tank body, and the intracorporal water of tank is heated to preset temperature；(4) after tested plated film LED light strip preheating reaches thermal balance, tested plated film LED light strip drops under water；(5) situation of tested plated film LED light strip is observed by the video camera in tank body, while test constantly is tested the potential difference U between light bar neighbouring position water and ground in water at this time；(6) there is continuous bubble in tested any position of plated film LED light strip during test, and directly judgement product waterproof property is unqualified.The present invention discharges the principle of bubble by electrolysis water, can be realized the waterproofing grade performance detection of plated film LED light strip IPX5~IPX9.
Description
Technical field
The present invention relates to LED field, especially a kind of waterproof performance detection method of plated film LED light strip.
Background technique
Plated film waterproof LED lamp band is to plate one layer of micron order or the plating of nanoscale transparent material in LED light belt surface
Layer achievees the effect that good waterproof with this, and does not influence its normal luminous lighting function.
The test method of existing waterproof performance usually use specific water flow to all directions of test product into
Product is immersed in water by row spray, and after continuing the regular hour, observation checks whether qualification by visual observation.
As advised in standard GB/T/T 4208-2017 shell protection grade (IP code) (IEC 60529:2013, IDT)
Fixed test method:
(1) waterproofing grade IPX5 is tested: the nozzle for the use of internal diameter being 6.3mm, water flow are set as (12.5 ± 0.625) L/
Min, the distance of nozzle to product casing surface are 2.5m~3m, the minimum 3min of test period；
(2) waterproofing grade IPX6 is tested: the nozzle for the use of internal diameter being 12.5mm, water flow are set as (100 ± 5) L/min, spray
The distance on mouth to product casing surface is 2.5m~3m, the minimum 3min of test period；
(3) waterproofing grade IPX7 is tested: test products are fully entered in water by defined installation condition, highly less than 850mm's
Shell minimum point should be lower than water surface 1000mm, highly be equal to or more than the shell highest point of 850mm, should be lower than water surface 150mm,
Duration of test runs 30min；
(4) waterproofing grade IPX8 is tested: experimental condition should be negotiated by factory and user, harsh as defined in condition ratio IPX7 and want
In view of the requirement (its specified maximum slips into water pressure caused by depth) that shell is persistently dived under water in product actual use, test
Duration 30min.
Above-mentioned test is larger suitable for size, and shell is openable or convenient for observing the product of flooded condition.And for
The plated film LED light strip that size is smaller, coating is very thin, inflow is minimum when failure, and can not observe after above-mentioned test is
No water inlet, therefore can not detect its waterproof performance.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of waterproof performance detection methods of plated film LED light strip, solve
The problem of plated film LED light strip waterproof detects.
In order to solve the above technical problems, the technical scheme is that a kind of waterproof performance detection side of plated film LED light strip
Method, comprising the following steps:
(1) tested plated film LED light strip is put into the tank body of detection device, and tested plated film LED light strip is fixed on and can go up and down
On frock clamp；
(2) energization is lighted tested plated film LED light strip and is preheated；
(3) sealed shell of tank successively injects water and pressure-air, until hydraulic pressure reaches default hydraulic pressure value in tank body in tank body；It will
The intracorporal water of tank is heated to preset temperature；
(4) it after tested plated film LED light strip preheating reaches thermal balance, controls frock clamp and tested plated film LED light strip drops to water
Under；
(5) situation of tested plated film LED light strip is observed by the video camera in tank body, and carries out automatic video recording, while lasting survey
Measure the potential difference U being tested between light bar neighbouring position water and ground in water at this time；
(6) there is continuous bubble in tested any position of plated film LED light strip during test, directly determines product waterproof property not
It is qualified；
(7) tested plated film LED light strip does not occur bubble during test or bubble is unobvious, but the potential to ground difference U measured
When greater than 5V, then tested plated film LED light strip is placed on after standing 24 ~ 48 hours in the still air of room temperature condition, observation is tested
The oxidization condition of plated film LED light strip metal parts, when discovery has any metal part that oxidation stain occurs, then indirect judgement product
Waterproof performance is unqualified.
As an improvement, the tank body is furnished with removable cover, the side of tank body is equipped with water inlet and air inlet, and the bottom of tank body is set
There are water outlet and heating tube, sets that there are three temperature sensor, an electronics hydraulic pressure sensor, low water levels to protect in the tank body
Shield switch and a high water level protective switch.
As an improvement, the removable cover is equipped with the gentle pressure safety valve of electronics air pressure valve.
As an improvement, the frock clamp includes the driving mechanism of fixed plate and driving fixed plate lifting, the fixed plate
It is equipped with the groove for accommodating tested plated film LED light strip, the driving mechanism is leading screw and nut mechanism.
As an improvement, the detection device further includes controller host, high-pressure hydraulic pump, high-pressure pump and host computer, it is described
Controller host include liquid crystal display, control button, emergent stopping key, detection DC power supply, water pump/air pump power supply and
Sensor control assembly.
As an improvement, opening water-proof performance testing apparatus before step (1), the program of detection device whole system is carried out certainly
Inspection.
As an improvement, being 0m~2m, test in the program setting test depth of water according to different test requests before step (3)
Hydraulic pressure is the kPa of 0 kPa~500, and test water temperature is 0 DEG C~100 DEG C, and test time is 0S~99h, protects the hydraulic pressure upper limit
600 kPa of maximum protect 650 kPa of air pressure upper limit maximum.
As an improvement, stopping video recording after the test, in slow release tank body after air pressure to standard atmospheric pressure, control is risen
Test fixture fixture and tested plated film LED light strip close tested plated film LED light strip working power, to water temperature be cooled to 50 DEG C with
It is lower or after exhausting test water in device, test device removable cover is opened, tested plated film LED light strip is taken out, carries out step (7)
Waterproof performance determine.
As an improvement, (a) waterproofing grade IPX5 is tested: test depth of water 0.1m, air pressure 0.2kPa, the water temperature and sample of setting
Temperature difference when product thermal balance is not more than 5K, and test period continues minimum 15 min；(b) waterproofing grade IPX6 is tested: test water
Deep 0.1m, 0.8 kPa of air pressure, the water temperature and the thermally equilibrated temperature difference of sample of setting are not more than 5K, and test period continues minimum 3
min；(c) waterproofing grade IPX7 is tested: test depth of water 1m, when air pressure is arranged 0kPa, the water temperature of setting and sample thermal balance
Temperature difference is not more than 5K, duration of test runs 30min；(d) waterproofing grade IPX8 is tested: test depth of water 1m, the water temperature of setting
It is not more than 5K with temperature difference when sample thermal balance, air pressure is set according to the nominal diving depth of water of specific test specimen, and test is held
Continuous time 30min；(e) waterproofing grade IPX9 test: test depth of water 1m, 80 DEG C of temperature setting, 0.2 kPa of air pressure, test duration
Time minimum 3min.
The beneficial effect of the invention compared with the existing technology is:
The present invention by electrolysis water discharge gas principle, be aided with ineffective part water and electricity double action under aoxidize show
As design experiment device and detection method being capable of quick, convenient, the accurate waterproofs for carrying out plated film LED light strip IPX5~IPX9
Grade performance detection and evaluation, it is high degree of automation, safe and reliable；And the present invention realized by a set of equipment it is different grades of
Waterproof performance detection, level of integrated system is high, there is good versatility.
Detailed description of the invention
Fig. 1 is detection device outside schematic diagram.
Fig. 2 is detection device schematic internal view.
Fig. 3 is the electrical diagram of detection device of the present invention.
Fig. 4 is overhaul flow chart of the present invention.
Specific embodiment
The invention is further explained in the following combination with the attached drawings of the specification.
As shown in Figures 1 to 3, a kind of water-proof performance testing apparatus of plated film LED light strip, the tank body including having removable cover 2
1, the tank body 1 is cylindrical, and the removable cover 2 is located at the top of tank body 1, and sealing ring is equipped between removable cover 2 and tank body 1,
To guarantee that the leakproofness of experimental situation in tank body 1, the surrounding of removable cover 2 are locked at the top of tank body 1 by bolt.The tank body
1 side is equipped with water inlet 4 and air inlet 3, and the bottom of tank body 1 is equipped with water outlet 5 and heating tube 9, is equipped with three in the tank body 1
A temperature sensor, electronics hydraulic pressure sensor, low water level protective switch, high water level protective switch, voltage gap sensor etc..It is described
Removable cover 2 is equipped with the gentle pressure safety valve of electronics air pressure valve；The inner wall middle position of removable cover 2 is equipped with wide-angle high-definition camera.
The frock clamp 7 that can be gone up and down is equipped in the tank body 1, the frock clamp 7 includes that fixed plate 71 and driving fixed plate 71 are gone up and down
Driving mechanism, the fixed plate 71 is equipped with the groove for accommodating tested plated film LED light strip 8, and the driving mechanism is screw rod spiral shell
Parent agency 72 can be gone up and down fixed plate together with tested plated film LED light strip by leading screw and nut mechanism 72.The detection device
It further include controller host, high-pressure hydraulic pump, high-pressure pump and host computer, the controller host includes liquid crystal display, control
Key, emergent stopping key, detection DC power supply, water pump/air pump power supply and sensor control assembly.Controller host passes through
High-pressure hydraulic pump is filled the water into tank body 1, is injected high pressure gas into tank body 1 by high-pressure pump, is controlled tank by various kinds of sensors
The depth of water and Underwater Pressure in body 1.It controls host to be arranged outside tank body 1, the lead of the electrical equipment in tank body 1 all passes through tank
Waterproof connector 6 on 1 side wall of body is drawn and is connect with control host.
As shown in figure 4, the waterproof performance detection method of plated film LED light strip 8, comprising the following steps:
(1) water-proof performance testing apparatus is opened, the program self-test of detection device whole system is carried out；
(2) after self-test passes through, frock clamp rises, and the tooling that tested plated film LED light strip 8 is put into the tank body 1 of detection device is pressed from both sides
On tool；
(3) operation DC voltage, electric current are preset, energization is lighted tested plated film LED light strip 8 and preheated, and preheating time is at least
30min；
(4) removable cover 2 is closed, tank body 1 is sealed；
It (5) is 0m~2m in the program setting test depth of water, test hydraulic pressure is 0 kPa~500 according to different test requests
KPa, test water temperature are 0 DEG C~100 DEG C, and test time is 0S~99h, protects 600 kPa of hydraulic pressure upper limit maximum, protect gas
Press 650 kPa of upper limit maximum；
(6) start the water filling in tank body 1, after water reaches the default depth of water, pressure-air is injected in tank body 1, utilize high pressure sky
The pressure of gas and then hydraulic pressure is controlled, be pressurized to default hydraulic pressure, the heating tube of detection device presses the temperature by setting for tank body 1 automatically
Interior water is heated to preset temperature；
(7) it after the tested preheating of plated film LED light strip 8 reaches thermal balance, controls frock clamp and tested plated film LED light strip 8 drops to
Under water；
(8) when tester, the situation of tested plated film LED light strip 8, such as observation quilt are observed by the video camera in tank body 1
Surveying plated film LED light strip 8 has bubble-free generation, and carries out automatic video recording, while test constantly is tested light bar position nearby in water at this time
Set the potential difference U between water and ground；
(9) stop video recording after the test, in slow release tank body 1 after air pressure to standard atmospheric pressure, test fixture is risen in control
Fixture and tested plated film LED light strip 8 close tested 8 working power of plated film LED light strip, are cooled to 50 DEG C or less or row to water temperature
After falling the test water in device, test device removable cover 2 is opened, takes out tested plated film LED light strip 8；
(10) there is continuous bubble in the tested any position of plated film LED light strip 8 during test, directly judgement product waterproof property
It is unqualified；
(11) when tested plated film LED light strip 8 does not occur bubble in the process for test, but the potential to ground difference U measured is greater than 5V, then
Tested plated film LED light strip 8 is placed on after standing 24 ~ 48 hours in the still air of room temperature condition, observes tested plated film LED light strip
The oxidization condition of 8 metal parts (should pay close attention to the electrode pin of device when discovery has any metal part that oxidation stain occurs
Place), then indirect judgement product waterproof property is unqualified.
The guide that the present invention tests LED light strip waterproofing grade:
(a) waterproofing grade IPX5 is tested: test depth of water 0.1m, air pressure 0.2kPa, water temperature and temperature when sample thermal balance of setting
Degree difference is not more than 5K, and test period continues minimum 15 min；
(b) waterproofing grade IPX6 is tested: test depth of water 0.1m, 0.8 kPa of air pressure, the water temperature and the thermally equilibrated temperature of sample of setting
Degree difference is not more than 5K, and test period continues minimum 3 min；
(c) waterproofing grade IPX7 is tested: test depth of water 1m, when air pressure is arranged 0kPa, the water temperature of setting and sample thermal balance
Temperature difference is not more than 5K, duration of test runs 30min；
(d) waterproofing grade IPX8 is tested: test depth of water 1m, and water temperature and temperature difference when sample thermal balance of setting are not more than 5K,
Air pressure sets that (air pressure being arranged in device is that standard atmospheric pressure is dived plus sample according to the nominal diving depth of water of specific test specimen
The hydraulic pressure of water, then subtract the hydraulic pressure of the test depth of water.Such as: the nominal dive potential of product be underwater 10m, according to hydraulic pressure formula P=
ρ gh, standard environment atmospheric pressure about 100kPa, ρ take 1000 kg/m3, and g approximation takes 10 m/s, and air pressure setting is calculated as 100+
1000 × 10 × 10/1000-1000 × 10 × 1/1000=190kPa, other nominal depths calculate according to this), duration of test runs
30min；
(e) waterproofing grade IPX9 is tested: test depth of water 1m, 80 DEG C of temperature setting, 0.2 kPa of air pressure, duration of test runs is minimum
3min。
The present invention is directed to be examined using the waterproof performance of Safety Extra Low Voltage, direct current 50V or less the plated film LED light strip 8 powered
It surveys.Such as the product of high voltage operation, obstructed electro-detection can also be with reference to use.
It predominantly detects electrolysis water when principle fails for observation 8 waterproof performance of waterproof plated film LED light strip to react: plated film LED light
When band 8 is powered in water, if there is waterproof performance fails, electrolysis water reaction can occur near the position of failure, in turn
Bubble is generated, and oxidation reaction occurs in the metal part of pcb board.
Electrolysis water principle:
Waterproof performance can be judged simultaneously come subtest by monitoring potential difference.
The advantage of the present invention compared with prior art:
1, the waterproof performance detection and evaluation of plated film LED light strip IPX5~IPX9 may be implemented；
2, it may be implemented under different water temperatures, hydraulic pressure environmental condition, detect the waterproof performance of plated film LED light strip, it can also benefit
With system of the invention, other different testing conditions of self-setting test other products；
3, test overall process, the details of each timing node can be recorded in the carry out high definition video recording in entire test process；
4, high degree of automation is precisely controlled, versatile, securely and reliably.
Claims (9)
1. a kind of waterproof performance detection method of plated film LED light strip, which comprises the following steps:
(1) tested plated film LED light strip is put into the tank body of detection device, and tested plated film LED light strip is fixed on and can go up and down
On frock clamp；
(2) energization is lighted tested plated film LED light strip and is preheated；
(3) sealed shell of tank successively injects water and pressure-air, until hydraulic pressure reaches default hydraulic pressure value in tank body in tank body；It will
The intracorporal water of tank is heated to preset temperature；
(4) it after tested plated film LED light strip preheating reaches thermal balance, controls frock clamp and tested plated film LED light strip drops to water
Under；
(5) situation of tested plated film LED light strip is observed by the video camera in tank body, and carries out automatic video recording, while lasting survey
Measure the potential difference U being tested between light bar neighbouring position water and ground in water at this time；
(6) there is continuous bubble in tested any position of plated film LED light strip during test, directly determines product waterproof property not
It is qualified；
(7) tested plated film LED light strip does not occur bubble during test or bubble is unobvious, but the potential to ground difference U measured
When greater than 5V, then tested plated film LED light strip is placed on after standing 24 ~ 48 hours in the still air of room temperature condition, observation is tested
The oxidization condition of plated film LED light strip metal parts, when discovery has any metal part that oxidation stain occurs, then indirect judgement product
Waterproof performance is unqualified.
2. a kind of waterproof performance detection method of plated film LED light strip according to claim 1, it is characterised in that: the tank
Body is furnished with removable cover, and the side of tank body is equipped with water inlet and air inlet, and the bottom of tank body is equipped with water outlet and heating tube, the tank
Temperature sensor, an electronics hydraulic pressure sensor, a low water level protective switch and a high water level protection there are three setting in vivo
Switch.
3. a kind of waterproof performance detection method of plated film LED light strip according to claim 2, it is characterised in that: the work
It is dynamic to cover equipped with the gentle pressure safety valve of electronics air pressure valve.
4. a kind of waterproof performance detection method of plated film LED light strip according to claim 1, it is characterised in that: the work
Clamps include the driving mechanism of fixed plate and driving fixed plate lifting, and the fixed plate, which is equipped with, accommodates tested plated film LED light
The groove of band, the driving mechanism are leading screw and nut mechanism.
5. a kind of waterproof performance detection method of plated film LED light strip according to claim 1, it is characterised in that: the inspection
Surveying device further includes controller host, high-pressure hydraulic pump, high-pressure pump and host computer, and the controller host includes liquid crystal display
Device, control button, emergent stopping key, detection DC power supply, water pump/air pump power supply and sensor control assembly.
6. a kind of waterproof performance detection method of plated film LED light strip according to claim 5, it is characterised in that: step (1)
Before, water-proof performance testing apparatus is opened, the program self-test of detection device whole system is carried out.
7. a kind of waterproof performance detection method of plated film LED light strip according to claim 1, it is characterised in that: step (3)
Before, it is 0m~2m in the program setting test depth of water according to different test requests, test hydraulic pressure is the kPa of 0 kPa~500, is surveyed
Testing the water temperature is 0 DEG C~100 DEG C, and test time is 0S~99h, protects 600 kPa of hydraulic pressure upper limit maximum, protects the air pressure upper limit
650 kPa of maximum.
8. a kind of waterproof performance detection method of plated film LED light strip according to claim 1, it is characterised in that: test knot
Stop video recording after beam, in slow release tank body after air pressure to standard atmospheric pressure, test fixture fixture and tested plated film are risen in control
LED light strip closes tested plated film LED light strip working power, and the test for being cooled to 50 DEG C or less to water temperature or exhausting in device is used
After water, test device removable cover is opened, takes out tested plated film LED light strip, the waterproof performance for carrying out step (7) determines.
9. a kind of waterproof performance detection method of plated film LED light strip according to claim 1, it is characterised in that:
(a) waterproofing grade IPX5 is tested: test depth of water 0.1m, air pressure 0.2kPa, water temperature and temperature when sample thermal balance of setting
Degree difference is not more than 5K, and test period continues minimum 15 min；
(b) waterproofing grade IPX6 is tested: test depth of water 0.1m, 0.8 kPa of air pressure, the water temperature and the thermally equilibrated temperature of sample of setting
Degree difference is not more than 5K, and test period continues minimum 3 min；
(c) waterproofing grade IPX7 is tested: test depth of water 1m, when air pressure is arranged 0kPa, the water temperature of setting and sample thermal balance
Temperature difference is not more than 5K, duration of test runs 30min；
(d) waterproofing grade IPX8 is tested: test depth of water 1m, and water temperature and temperature difference when sample thermal balance of setting are not more than 5K,
Air pressure is set according to the nominal diving depth of water of specific test specimen, duration of test runs 30min；
(e) waterproofing grade IPX9 is tested: test depth of water 1m, 80 DEG C of temperature setting, 0.2 kPa of air pressure, duration of test runs is minimum
3min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910754979.4A CN110440994B (en) | 2019-08-15 | 2019-08-15 | Waterproof performance detection method for film-coated LED lamp strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910754979.4A CN110440994B (en) | 2019-08-15 | 2019-08-15 | Waterproof performance detection method for film-coated LED lamp strip |
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| CN110440994A true CN110440994A (en) | 2019-11-12 |
| CN110440994B CN110440994B (en) | 2021-02-19 |
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ID=68435778
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|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252249A (en) * | 2021-06-22 | 2021-08-13 | 武汉嘉谷肽业生物科技股份有限公司 | Sealing detection device for packaging of multiple blood peptides |
| CN114088297A (en) * | 2021-11-18 | 2022-02-25 | 广东森派科技有限公司 | Linear lamp belt waterproof testing device and testing method thereof |
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| CN114088297A (en) * | 2021-11-18 | 2022-02-25 | 广东森派科技有限公司 | Linear lamp belt waterproof testing device and testing method thereof |
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| Publication number | Publication date |
|---|---|
| CN110440994B (en) | 2021-02-19 |
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