CN103257022B - Seal testing instrument and seal testing methods - Google Patents
Seal testing instrument and seal testing methods Download PDFInfo
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- CN103257022B CN103257022B CN201310146732.7A CN201310146732A CN103257022B CN 103257022 B CN103257022 B CN 103257022B CN 201310146732 A CN201310146732 A CN 201310146732A CN 103257022 B CN103257022 B CN 103257022B
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- 238000012360 testing method Methods 0.000 title claims abstract description 78
- 238000007789 sealing Methods 0.000 claims description 40
- 238000012856 packing Methods 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 description 12
- 238000010998 test method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a seal testing instrument which is suitable for detecting a seal degree of the inside of a product and comprises a sealed container, an electric control box, a barometer and an air pump. The air pump is communicated with the sealed container. The barometer detects a pressure value inside the sealed container. The barometer and the air pump are respectively electrically connected with the electric control box. The seal testing instrument is simple in structure, easy and convenient to operate, easy to use and accurate in testing. In addition, the invention further discloses two seal testing methods according to which the seal testing instrument is used for testing the seal degree of a product.
Description
Technical field
The present invention relates to a kind of tester, particularly relating to a kind of tightness testing method for testing the inner sealing test instrument whether sealed of LED and the seal degree utilizing sealing test instrument test products.
Background technology
Along with the improving constantly of energy-conserving and environment-protective consciousness of scientific and technological level and people, IED lamp is widely used in daily productive life, simultaneously, the request for utilization of LED is progressively improved, the LED of especially outdoor use, just more outstanding to its waterproof and dampproof requirement, this just makes to increase sealing property when production LED and detects this procedure.
The detection method that existing LED generally adopts is immersed in completely in water it, and whether after certain hour, observing LED surface has bubble to emerge.Although this mode can detect the LED of inner serious gas leakage, for the LED having slight gas leakage, the immersion of short period is difficult to detect, even if detect, technician needs LED to pick up from water, and puts it in water after processing leakage area again and retest.Therefore, said method not only requires a great deal of time, and operation extremely bothers, and seriously reduces work efficiency, and the accuracy detected is low, reduces the qualification rate of product.
Based on above-mentioned deficiency, need a kind of structure simple, easy and simple to handle, be easy to use and test sealing test instrument accurately.
Summary of the invention
The object of the present invention is to provide a kind of structure simple, easy and simple to handle, be easy to use and test sealing test instrument accurately.
Another object of the present invention is to provide a kind of tightness testing method utilizing the seal degree of sealing test instrument test products.
Another object of the present invention is to provide another kind to utilize the tightness testing method of the seal degree of sealing test instrument test products.
To achieve these goals, the invention provides a kind of sealing test instrument, be applicable to the seal degree of testing product inside, comprise closed container, electric cabinet, rain glass and air pump, described air pump is communicated with described closed container, described rain glass detects described closed container internal gas pressure value, and described rain glass and air pump are electrically connected with described electric cabinet respectively.
Preferably, described sealing test instrument also comprises air valve, described air valve is electrically connected with described electric cabinet, described air valve has inlet channel and outlet passageway, described air pump and described closed container are communicated with described inlet channel respectively, and the inside of described closed container and described product is communicated with described outlet passageway respectively.By arranging described air valve, described air valve can be communicated with between closed container and between closed container with product described air pump or block, thus ensure that air valve is in air inlet or wherein a kind of state of giving vent to anger, and by electric cabinet centralized control, tester is facilitated to manipulate.
Particularly, described sealing test instrument also comprises fixture, and described holder also fixes described product.Because tested product is in outside, arranging described fixture can be effectively fixing by tested product, prevents from being moved in sufficient process and affects the accuracy of test.
Particularly, described sealing test instrument also comprises gas pressure regulator, and described electric cabinet is provided with display device, and described gas pressure regulator detects the air pressure in described closed container and controls described display device display by described electric cabinet.Described gas pressure regulator can detect the air pressure size in closed container, thus export different signals and coordinate described electric cabinet to realize controlling the display of described display device again, tester can be made like this to judge the testing result of tested product rapidly, further facilitate tester's manipulation, and effectively increase work efficiency.
More specifically, described display device comprises green light and red light.Green light and red light is used to make tester can judge the testing result of tested product rapidly further.
Particularly, described electric cabinet is also provided with timer, described timer recording test time.Because tested product may exist small gas leakage, gas in described closed container enters in tested product and needs the regular hour, therefore, arranging described timer can test after the stable gas pressure in closed container again, thus makes test result more accurate.
Because the present invention is by arranging described closed container, utilize electric cabinet to control described air pump to inflate described closed container, and utilize described rain glass to measure the air pressure in described closed container, if the air pressure in described closed container is identical with the atmospheric pressure value that electric cabinet sets, then tested product is air tight, thus judge that tested product seals, otherwise, then tested product blow-by, therefore, by measuring the atmospheric pressure value change in closed container, thus reach the object of the seal degree measuring tested product, whole sealing test instrument structure is simple, and only need be controlled by electric cabinet and accurately can judge test result according to the instruction of electric cabinet, easy and simple to handle, be easy to use.
A kind of tightness testing method, utilize the seal degree of described sealing test instrument test products, comprise the following steps: complete hermetic product is placed in described closed container by (1), the gas that tolerance is Q is filled with in described closed container, and the atmospheric pressure value recorded in described closed container, be set to maximal value M; Packing less product is placed in described closed container, in described closed container, is filled with the gas that tolerance is Q, and records the atmospheric pressure value in described closed container, be set to minimum value m; (2) tested product is placed in described closed container, and is filled with the gas that tolerance is Q in described closed container; (3) keep certain time interval T, record the atmospheric pressure value F in described closed container; (4) contrasted by described atmospheric pressure value F and maximal value M and minimum value m, if F equals M, then tested product is sealing; If F be less than M simultaneously F be greater than m, and F continues change, then tested product slightly leaks gas; If F equals m, then tested product seriously leaks gas.
A kind of tightness testing method, utilize the seal degree of described sealing test instrument test products, comprise the following steps: complete hermetic product is communicated with described closed container by (1), the gas that tolerance is Q is filled with in described closed container, and the atmospheric pressure value recorded in described closed container, be set to maximal value M; Packing less product is communicated with described closed container, in described closed container, is filled with the gas that tolerance is Q, and records the atmospheric pressure value in described closed container, be set to minimum value m; (2) tested product is communicated with described closed container, and is filled with the gas that tolerance is Q in described closed container; (3) keep certain time interval T, record the atmospheric pressure value F in described closed container; (4) contrasted by described atmospheric pressure value F and maximal value M and minimum value m, if F equals M, then tested product is sealing; If F be less than M simultaneously F be greater than m, and F continues change, then tested product slightly leaks gas; If F equals m, then tested product seriously leaks gas.
Accompanying drawing explanation
Fig. 1 is the structural representation of sealing test instrument of the present invention.
Fig. 2 is that sealing test instrument of the present invention uses first method to detect the constitutional diagram of tested product.
Fig. 3 is that sealing test instrument of the present invention uses second method to detect the constitutional diagram of tested product.
Fig. 4 is a kind of process flow diagram using sealing test instrument to detect the method for tested product.
Fig. 5 is the another kind of process flow diagram using sealing test instrument to detect the method for tested product.
Embodiment
For describing technology contents of the present invention, structural attitude, the effect that realizes in detail, accompanying drawing is coordinated to be explained in detail below in conjunction with embodiment.
As shown in Figure 1, sealing test instrument 100 of the present invention for the seal degree of lamp bracket 200 inside of LED, thus can draw the water resistance of described lamp bracket 200.Described sealing test instrument 100 comprises closed container 1, electric cabinet 2, rain glass 3, air pump 4, air valve 5, gas pressure regulator 6 and fixture (not shown).Described air pump 4 is communicated with described closed container 1; Described rain glass 3 detects the atmospheric pressure value in described closed container 1; Described air valve 5 has inlet channel 51 and outlet passageway 52, described air pump 4 and described closed container 1 are communicated with described inlet channel 51 respectively, and the inside of described closed container 1 and described lamp bracket 200 is communicated with described outlet passageway 52 respectively, the inlet channel 51 of described air valve 5 and outlet passageway 52 are controlled by the turnover pneumatic control switch 20 on described electric cabinet 2.Described electric cabinet 2 is provided with display device, and described gas pressure regulator 6 detects the air pressure in described closed container 1 and controls described display device display by described electric cabinet 2; Described holder also fixes described lamp bracket 200; Described electric cabinet 2 is also provided with timer 7, described timer 7 recording test time.Described rain glass 3, air pump 4, air valve 5 and gas pressure regulator 6 are electrically connected with described electric cabinet 2 respectively, and described electric cabinet 2 is connected with power supply 8.The cylinder-like structure that described closed container 1 is elongated.
As shown in Figures 2 and 3, the present invention can use two kinds of method of testings to detect described lamp bracket 200: the first is inner for described lamp bracket 200 being positioned over described closed container 1; The second for be placed in outside described closed container 1 by described lamp bracket 200, and is communicated with described closed container 1.Therefore, described closed container 1 is arranged to the placement that cylindrical shape can facilitate described lamp bracket 200; Certainly, when tested product is other shapes, as required described closed container 1 can be arranged to other shapes.Described gas pressure regulator 6 can detect the air pressure size in closed container 1, thus export different signals and coordinate described electric cabinet 2 to realize controlling the display of described display device again, tester can be made like this to judge the testing result of tested product rapidly, further facilitate tester's manipulation, and effectively increase work efficiency.Particularly, described display device comprises green light 21 and red light 22.When institute's lamp bracket 200 seals, described green light 21 is lighted, and when described lamp bracket 200 blow-by, described red light 22 is lighted; Green light 21 and red light 22 is used to make tester can judge the testing result of tested product rapidly further.In addition, because tested product may exist slight gas leakage or serious gas leakage situation, when tested product is for slightly leaking gas, gas in described closed container 1 enters in tested product and needs the regular hour, therefore, arrange described timer 7 to test again after the stable gas pressure in described closed container 1, thus make test result more accurate.
Again as shown in Figure 3, when using the second method of testing, in the process that described air pump 4 is inflated described closed container 1, described air pump 4 can be communicated with between closed container 1 by described air valve 5, and by the intrinsic block of described closed container 1 with described lamp bracket 200, thus ensure that described closed container 1 is in normal inflated condition; In the process that described closed container 1 is inflated described lamp bracket 200 inside, described air valve can block between described air pump 4 and closed container 1, and the inside of described closed container 1 with described lamp bracket 200 is communicated with, thus ensures that described closed container 1 is in and go out gaseity normally.In addition, arranging described fixture can be effectively fixing by tested product, prevents from being moved in sufficient process and affects the accuracy of test.
Two kinds of method of testings of sealing test instrument 100 of the present invention are as follows:
As shown in Figures 2 and 4, the first method of testing comprises the following steps:
Complete hermetic product is placed in described closed container 1 by S11, is filled with the gas that tolerance is Q, and records the atmospheric pressure value in described closed container 1, be set to maximal value M1 in described closed container 1; Packing less product is placed in described closed container 1, in described closed container 1, is filled with the gas that tolerance is Q, and records the atmospheric pressure value in described closed container 1, be set to minimum value m1.Described maximal value M1 is the atmospheric pressure value of gas when not entering the inner space of described complete hermetic product completely and be in stable of in described closed container 1; Described minimum value m1 is the atmospheric pressure value of the gas in described closed container 1 when being full of the inner space of described packing less product completely and being in stable; Described maximal value M1 and minimum value m1 can draw through repeatedly testing.In this step, twice to before described closed container 1 insufflation gas, the air pressure in described closed container 1 must be consistent, and before air pump 4 of the present invention is inflated described closed container 1, the air pressure in described closed container 1 is normal pressure or standard atmospheric pressure.
Tested product is placed in described closed container 1 by S12, and is filled with the gas that tolerance is Q in described closed container 1.In this step, before described closed container 1 insufflation gas, the air pressure in described closed container 1 is normal pressure or standard atmospheric pressure; It should be noted that described tested formula product is same product with the complete hermetic product in step S11 and packing less product.
S13 keeps certain time interval T, records the atmospheric pressure value F1 in described closed container 1.The time that described time T can be entered needed for packing less product by the gas repeatedly tested in described closed container 1 is determined.
Described atmospheric pressure value F1 and maximal value M1 and minimum value m1 contrasts by S14, if F1 equals M1, then tested product is sealing; If F1 be less than M1 simultaneously F be greater than m1, and F1 continues to diminish, then tested product slightly leaks gas; If F1 equals m1, then tested product seriously leaks gas.
As depicted in figs. 3 and 5, the second method of testing comprises the following steps:
Complete hermetic product is communicated with described closed container 1 by S21, is filled with the gas that tolerance is Q, and records the atmospheric pressure value in described closed container 1, be set to maximal value M2 in described closed container 1; Packing less product is communicated with described closed container 1, in described closed container 1, is filled with the gas that tolerance is Q, and records the atmospheric pressure value in described closed container 1, be set to minimum value m2.Described maximal value M2 is the atmospheric pressure value of the gas in described closed container 1 when not entering the inner space of described complete hermetic product completely and be in stable; Described minimum value m2 is the atmospheric pressure value of the gas in described closed container 1 when being full of the inner space of described packing less product completely and being in stable; Described maximal value M2 and minimum value m2 can draw through anti-must test.In this step, twice to before described closed container 1 insufflation gas, the air pressure in described closed container must be consistent, and before closed container 1 insufflation gas of the present invention, the air pressure in described closed container 1 is normal pressure or standard atmospheric pressure.
Tested product is communicated with described closed container 1 by S22, and is filled with the gas that tolerance is Q in described closed container 1.In this step, before described closed container 1 insufflation gas, the air pressure in described closed container 1 is normal pressure or standard atmospheric pressure; It should be noted that described tested formula product is same product with the complete hermetic product in step S21 and packing less product.
S23 keeps certain time interval T 2, records the atmospheric pressure value F2 in described closed container 1.The time that described time T2 can be entered needed for packing less product by the gas repeatedly tested in described closed container 1 is determined.
Described atmospheric pressure value F2 and maximal value M2 and minimum value m2 contrasts by S24, if F2 equals M2, then tested product is sealing; If F2 be less than M2 simultaneously F be greater than m2, and F2 continues to diminish, then tested product slightly leaks gas; If F2 equals m2, then tested product seriously leaks gas.
Because the present invention is by arranging described closed container 1, utilize electric cabinet 2 to control described air pump 4 to inflate described closed container 1, and utilize described rain glass 3 to measure the air pressure in described closed container 1, if the air pressure in described closed container 1 is identical with the atmospheric pressure value that electric cabinet 2 sets, then tested product is air tight, thus judge that tested product seals, otherwise, then tested product blow-by, therefore, by measuring the atmospheric pressure value change in described closed container 1, thus reach the object of the seal degree measuring tested product, whole sealing test instrument 100 structure is simple, and only need be controlled by electric cabinet 2 and accurately can judge test result according to the instruction of electric cabinet 2, easy and simple to handle, be easy to use.
Above disclosedly be only preferred embodiments of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the present patent application the scope of the claims is done, still belong to the scope that the present invention is contained.
Claims (7)
1. a sealing test instrument, be applicable to the seal degree of testing product inside, it is characterized in that: comprise closed container, electric cabinet, rain glass and air pump, described air pump is communicated with described closed container, described rain glass detects described closed container internal gas pressure value, and described rain glass and air pump are electrically connected with described electric cabinet respectively; Described sealing test instrument also comprises air valve, described air valve is electrically connected with described electric cabinet, described air valve has inlet channel and outlet passageway, described air pump and described closed container are communicated with described inlet channel respectively, and the inside of described closed container and described product is communicated with described outlet passageway respectively.
2. sealing test instrument as claimed in claim 1, is characterized in that: described sealing test instrument also comprises fixture, and described holder also fixes described product.
3. sealing test instrument as claimed in claim 1, it is characterized in that: described sealing test instrument also comprises gas pressure regulator, described electric cabinet is provided with display device, and described gas pressure regulator detects the air pressure in described closed container and controls described display device display by described electric cabinet.
4. sealing test instrument as claimed in claim 3, is characterized in that: described display device comprises green light and red light.
5. sealing test instrument as claimed in claim 1, is characterized in that: described electric cabinet is also provided with timer, described timer recording test time.
6. a tightness testing method, utilizes the seal degree of the sealing test instrument test products described in any one of claim 1 to 5, it is characterized in that, comprise the following steps:
(1) complete hermetic product is placed in described closed container, in described closed container, is filled with the gas that tolerance is Q, and records the atmospheric pressure value in described closed container, be set to maximal value M; Packing less product is placed in described closed container, in described closed container, is filled with the gas that tolerance is Q, and records the atmospheric pressure value in described closed container, be set to minimum value m;
(2) tested product is placed in described closed container, and is filled with the gas that tolerance is Q in described closed container;
(3) keep certain time interval T, record the atmospheric pressure value F in described closed container;
(4) contrasted by described atmospheric pressure value F and maximal value M and minimum value m, if F equals M, then tested product is sealing; If F be less than M simultaneously F be greater than m, and F continues to diminish, then tested product slightly leaks gas; If F equals m, then tested product seriously leaks gas.
7. a tightness testing method, utilizes the seal degree of the sealing test instrument test products described in any one of claim 1 to 5, it is characterized in that, comprise the following steps:
(1) complete hermetic product is communicated with described closed container, in described closed container, is filled with the gas that tolerance is Q, and records the atmospheric pressure value in described closed container, be set to maximal value M; Packing less product is communicated with described closed container, in described closed container, is filled with the gas that tolerance is Q, and records the atmospheric pressure value in described closed container, be set to minimum value m;
(2) tested product is communicated with described closed container, and is filled with the gas that tolerance is Q in described closed container;
(3) keep certain time interval T, record the atmospheric pressure value F in described closed container;
(4) contrasted by described atmospheric pressure value F and maximal value M and minimum value m, if F equals M, then tested product is sealing; If F be less than M simultaneously F be greater than m, and F continues to diminish, then tested product slightly leaks gas; If F equals m, then tested product seriously leaks gas.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310146732.7A CN103257022B (en) | 2013-04-24 | 2013-04-24 | Seal testing instrument and seal testing methods |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310146732.7A CN103257022B (en) | 2013-04-24 | 2013-04-24 | Seal testing instrument and seal testing methods |
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| CN103257022A CN103257022A (en) | 2013-08-21 |
| CN103257022B true CN103257022B (en) | 2015-06-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104535278A (en) * | 2014-12-31 | 2015-04-22 | 珠海凌达压缩机有限公司 | Method and device for detecting air tightness of workpiece |
| CN104913887B (en) * | 2015-06-19 | 2017-12-12 | 山东理工大学 | Inner tube of a tyre detection means and inner tube of a tyre detection method |
| CN109060271A (en) * | 2018-09-17 | 2018-12-21 | 昆山睿力得软件技术有限公司 | A kind of car light air-tightness detection device |
| CN109060272A (en) * | 2018-09-17 | 2018-12-21 | 昆山睿力得软件技术有限公司 | A kind of car light air tightness detection equipment |
| CN111366309A (en) * | 2020-04-28 | 2020-07-03 | 国网江苏省电力有限公司检修分公司 | An instrument for detecting and analyzing the fault of transformer respirator |
| CN113008690A (en) * | 2021-04-15 | 2021-06-22 | 广东瑞远新材料有限公司 | Seal Tester |
| CN115493775A (en) * | 2022-09-26 | 2022-12-20 | 武汉半边天医疗技术发展有限公司 | An ultrasonic knife leak detection device and method |
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2013
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| WO2006009442A3 (en) * | 2004-07-20 | 2006-03-23 | Lothgenoten B V | Method and device for detecting a leak in packaging |
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