CN103257022A - Seal testing instrument and seal testing methods - Google Patents

Seal testing instrument and seal testing methods Download PDF

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Publication number
CN103257022A
CN103257022A CN2013101467327A CN201310146732A CN103257022A CN 103257022 A CN103257022 A CN 103257022A CN 2013101467327 A CN2013101467327 A CN 2013101467327A CN 201310146732 A CN201310146732 A CN 201310146732A CN 103257022 A CN103257022 A CN 103257022A
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China
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closed container
gas
tested
test instrument
atmospheric pressure
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CN2013101467327A
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CN103257022B (en
Inventor
张明通
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DONGGUAN QIYI ELECTRONICS Co Ltd
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DONGGUAN QIYI ELECTRONICS Co Ltd
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Priority to CN201310146732.7A priority Critical patent/CN103257022B/en
Publication of CN103257022A publication Critical patent/CN103257022A/en
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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

Sealing test instrument and tightness testing method
Technical field
The present invention relates to a kind of tester, relate in particular to a kind of sealing test instrument that whether seals for test LED lamp inside and the tightness testing method that utilizes the seal degree of sealing test instrument test products.
Background technology
Along with improving constantly that scientific and technological level and people's energy-conserving and environment-protective are realized, the IED lamp is widely used in the daily productive life, simultaneously, request for utilization to the LED lamp progressively improves, the LED lamp of especially outdoor use, just more outstanding to its waterproof and dampproof requirement, this just makes that increasing sealing property when producing the LED lamp detects this procedure.
The general detection method that adopts of existing LED lamp is that it is immersed in the water fully, treat certain hour after, whether observe LED lamp surface has bubble to emerge.Though this mode can detect the LED lamp of inner serious gas leakage,, for the LED lamp that slight gas leakage is arranged, the immersion of short period is difficult to detect, even if detect, the technician need pick up LED from water, and puts it into test again in the water again after handling leakage area.Therefore, said method not only requires a great deal of time, and operation is trouble very, seriously reduces work efficiency, and the accuracy that detects is low, reduces the qualification rate of product.
Based on above-mentioned deficiency, need be a kind of simple in structure, 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 simple in structurely, 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 that utilizes the seal degree of sealing test instrument test products.
Another purpose 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 described air valve is set, described air valve can be to being communicated with between described air pump and the closed container and between closed container and the product or blocking, thereby guarantee that air valve is in air inlet or the wherein a kind of state of giving vent to anger, and by the electric cabinet centralized control, make things convenient for the tester to control.
Particularly, described sealing test instrument also comprises anchor clamps, described anchor clamps clamping and fixing described product.Because tested product is in the outside, described anchor clamps are set can be effectively fixing with tested product, prevents from being moved in process fully and influence 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 the described closed container and controls described display device by described electric cabinet and shows signal.Described gas pressure regulator can detect the air pressure size in the closed container, thereby exporting different signals cooperates described electric cabinet to realize the demonstration of the described display device of control again, can make the tester can judge the testing result of tested product rapidly like this, further facilitate the tester and control, and effectively increase work efficiency.
More specifically, described display device comprises green light and red light.Use green light and red light further to make the tester can judge the testing result of tested product rapidly.
Particularly, also be provided with timer on the described electric cabinet, described timer recording test time.Because may there be small gas leakage in tested product, gas in the described closed container enters in the tested product and needs the regular hour, therefore, described timer is set can be tested after the stable gas pressure in closed container again, thereby makes test result more accurate.
Because the present invention is by arranging described closed container, utilizing electric cabinet to control described air pump inflates described closed container, and utilize described rain glass that the air pressure in the described closed container is measured, if the air pressure in the described closed container is identical with the atmospheric pressure value that electric cabinet is set, then tested product is air tight, thereby judge the tested product sealing, otherwise, then tested product blow-by, therefore, change by the atmospheric pressure value of measuring in the closed container, thereby reach the purpose of the seal degree of measuring tested product, whole sealing test instrument is simple in structure, and only needs can accurately judge test result by electric cabinet control and according to the indication 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, may further comprise the steps: the product that (1) will seal fully places in the described closed container, in described closed container, charge into the gas that tolerance is Q, and record the interior atmospheric pressure value of described closed container, be made as maximal value M; Packing less product is placed in the described closed container, in described closed container, charge into the gas that tolerance is Q, and record the atmospheric pressure value in the described closed container, be made as minimum value m; (2) tested product is placed in the described closed container, and in described closed container, charge into the gas that tolerance is Q; (3) keep certain time interval T, record the atmospheric pressure value F in the described closed container; (4) with described atmospheric pressure value F and maximal value M and minimum value m contrast, if F equals M, then tested product seals; Simultaneously F is greater than m if F is less than M, and F continues to change, and 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, may further comprise the steps: the product that (1) will seal fully is communicated with described closed container, in described closed container, charge into the gas that tolerance is Q, and record the interior atmospheric pressure value of described closed container, be made as maximal value M; Packing less product is communicated with described closed container, in described closed container, charges into the gas that tolerance is Q, and record the atmospheric pressure value in the described closed container, be made as minimum value m; (2) tested product is communicated with described closed container, and in described closed container, charges into the gas that tolerance is Q; (3) keep certain time interval T, record the atmospheric pressure value F in the described closed container; (4) with described atmospheric pressure value F and maximal value M and minimum value m contrast, if F equals M, then tested product seals; Simultaneously F is greater than m if F is less than M, and F continues to change, and then tested product slightly leaks gas; If F equals m, then tested product seriously leaks gas.
Description of drawings
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 that uses sealing test instrument to detect the method for tested product.
Fig. 5 is the another kind of process flow diagram that uses sealing test instrument to detect the method for tested product.
Embodiment
Be the effect that describes technology contents of the present invention, structural attitude in detail, realizes, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.
As shown in Figure 1, sealing test instrument 100 of the present invention is used for the seal degree of lamp bracket 200 inside of LED lamp, thereby 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 anchor clamps (not shown).Described air pump 4 is communicated with described closed container 1; Described rain glass 3 detects the atmospheric pressure value in the 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, and the inlet channel 51 of described air valve 5 and outlet passageway 52 are by switch 20 controls processed of the turnover gas control on the described electric cabinet 2.Described electric cabinet 2 is provided with display device, and described gas pressure regulator 6 detects the air pressure in the described closed container 1 and controls described display device by described electric cabinet 2 and shows signal; Described anchor clamps clamping and fixing described lamp bracket 200; Also be provided with timer 7 on the described electric cabinet 2, described timer 7 recording test times.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 that described lamp bracket 200 is detected: first kind for to be positioned over described closed container 1 inside with described lamp bracket 200; Second kind for to place described lamp bracket 200 outside the described closed container 1, and be communicated with described closed container 1.Therefore, described closed container 1 is arranged to the cylindric placement that can make things convenient for described lamp bracket 200; Certainly, when tested product is other shapes, can as required described closed container 1 be arranged to other shapes.Described gas pressure regulator 6 can detect the air pressure size in the closed container 1, thereby exporting different signals cooperates described electric cabinet 2 to realize the demonstration of the described display device of control again, can make the tester can judge the testing result of tested product rapidly like this, further facilitate the tester and control, and effectively increase work efficiency.Particularly, described display device comprises green light 21 and red light 22.When institute's lamp bracket 200 sealing, described green light 21 is lighted, and when described lamp bracket 200 blow-by, described red light 22 is lighted; Use green light 21 and red light 22 further to make the tester can judge the testing result of tested product rapidly.In addition, because tested product may exist slight gas leakage or serious gas leakage situation, when tested product is slight gas leakage, gas in the described closed container 1 enters in the tested product and needs the regular hour, therefore, described timer 7 is set can be tested after the stable gas pressure in described closed container 1 again, thereby makes test result more accurate.
Again as shown in Figure 3, when using second kind of method of testing, in the process of 4 pairs of described closed container 1 inflations of described air pump, described air valve 5 can be communicated with between described air pump 4 and the closed container 1, and with the inside blocking-up of described closed container 1 with described lamp bracket 200, thereby guarantee that described closed container 1 is in normal inflated condition; In the process that inflate 1 pair of described lamp bracket of described closed container, 200 inside, described air valve can be with blocking-up between described air pump 4 and the closed container 1, and with the internal communication of described closed container 1 with described lamp bracket 200, thereby guaranteeing that described closed container 1 is in goes out gaseity normally.In addition, described anchor clamps are set can be effectively fixing with tested product, prevents from being moved in sufficient process and influence the accuracy of test.
Two kinds of method of testings of sealing test instrument 100 of the present invention are as follows:
As Fig. 2 and shown in Figure 4, first kind of method of testing may further comprise the steps:
The product that S11 will seal fully places in the described closed container 1, charges into the gas that tolerance is Q in described closed container 1, and records the atmospheric pressure value in the described closed container 1, is made as maximal value M1; Packing less product is placed in the described closed container 1, in described closed container 1, charge into the gas that tolerance is Q, and record the atmospheric pressure value in the described closed container 1, be made as minimum value m1.Described maximal value M1 is that 1 gas does not enter the inner space of the described product of sealing fully fully and is in atmospheric pressure value when stablizing in the described closed container; Described minimum value m1 is that the gas in the described closed container 1 is full of the inner space of described packing less product fully and is in atmospheric pressure value when stablizing; Described maximal value M1 and minimum value m1 can draw through testing repeatedly.In this step, before twice pair of described closed container 1 charged into gas, the air pressure in the described closed container 1 must be consistent, and before 4 pairs of described closed container 1 inflations of air pump of the present invention, the air pressure in the described closed container 1 is normal pressure or standard atmospheric pressure.
S12 places tested product in the described closed container 1, and charges into the gas that tolerance is Q in described closed container 1.In this step, described closed container 1 charged into gas before, the air pressure in the described closed container 1 is normal pressure or standard atmospheric pressure; It should be noted that product and the packing less product of sealing fully among described tested formula product and the step S11 are same product.
S13 keeps certain time interval T, records the atmospheric pressure value F1 in the described closed container 1.Described time T can enter the required time of packing less product and determines by testing gas in the described closed container 1 repeatedly.
S14 is with described atmospheric pressure value F1 and maximal value M1 and minimum value m1 contrast, if F1 equals M1, then tested product seals; Simultaneously F is greater than m1 if F1 is less than M1, and F1 continues to diminish, and then tested product slightly leaks gas; If F1 equals m1, then tested product seriously leaks gas.
As Fig. 3 and shown in Figure 5, second kind of method of testing may further comprise the steps:
The product that S21 will seal fully is communicated with described closed container 1, charges into the gas that tolerance is Q in described closed container 1, and records the atmospheric pressure value in the described closed container 1, is made as maximal value M2; Packing less product is communicated with described closed container 1, in described closed container 1, charges into the gas that tolerance is Q, and record the atmospheric pressure value in the described closed container 1, be made as minimum value m2.Described maximal value M2 is that the gas in the described closed container 1 does not enter the inner space of the described product of sealing fully fully and is in atmospheric pressure value when stablizing; Described minimum value m2 is that the gas in the described closed container 1 is full of the inner space of described packing less product fully and is in atmospheric pressure value when stablizing; Described maximal value M2 and minimum value m2 can draw through anti-must the test.In this step, before twice pair of described closed container 1 charged into gas, the air pressure in the described closed container must be consistent, and before closed container 1 of the present invention charged into gas, the air pressure in the described closed container 1 was normal pressure or standard atmospheric pressure.
S22 is communicated with tested product with described closed container 1, and charges into the gas that tolerance is Q in described closed container 1.In this step, described closed container 1 charged into gas before, the air pressure in the described closed container 1 is normal pressure or standard atmospheric pressure; It should be noted that product and the packing less product of sealing fully among described tested formula product and the step S21 are same product.
S23 keeps certain time interval T 2, records the atmospheric pressure value F2 in the described closed container 1.Described time T 2 can enter the required time of packing less product and determines by testing gas in the described closed container 1 repeatedly.
S24 is with described atmospheric pressure value F2 and maximal value M2 and minimum value m2 contrast, if F2 equals M2, then tested product seals; Simultaneously F is greater than m2 if F2 is less than M2, and F2 continues to diminish, and 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 4 pairs of described closed containers 1 of the electric cabinet 2 described air pumps of control to inflate, and utilize the air pressure in 3 pairs of described closed containers 1 of described rain glass to measure, if the air pressure in the described closed container 1 is identical with the atmospheric pressure value that electric cabinet 2 is set, then tested product is air tight, thereby judge the tested product sealing, otherwise, then tested product blow-by, therefore, change by the atmospheric pressure value of measuring in the described closed container 1, thereby reach the purpose of the seal degree of measuring tested product, whole sealing test instrument 100 is simple in structure, and only need can accurately judge test result by electric cabinet 2 controls and according to the indication of electric cabinet 2, easy and simple to handle, be easy to use.
Above disclosed only is preferred embodiments of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to the present patent application claim still belongs to the scope that the present invention is contained.

Claims (8)

1. 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.
2. sealing test instrument as claimed in claim 1, it is characterized in that: 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.
3. sealing test instrument as claimed in claim 2, it is characterized in that: described sealing test instrument also comprises anchor clamps, described anchor clamps clamping and fixing described product.
4. sealing test instrument as claimed in claim 1 or 2, 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 the described closed container and controls described display device by described electric cabinet and shows signal.
5. sealing test instrument as claimed in claim 4, it is characterized in that: described display device comprises green light and red light.
6. sealing test instrument as claimed in claim 1 or 2 is characterized in that: also be provided with timer on the described electric cabinet, described timer recording test time.
7. tightness testing method utilizes the seal degree of each described sealing test instrument test products of claim 1 to 6, it is characterized in that, may further comprise the steps:
(1) product that will seal fully places in the described closed container, charges into the gas that tolerance is Q in described closed container, and records the atmospheric pressure value in the described closed container, is made as maximal value M; Packing less product is placed in the described closed container, in described closed container, charge into the gas that tolerance is Q, and record the atmospheric pressure value in the described closed container, be made as minimum value m;
(2) tested product is placed in the described closed container, and in described closed container, charge into the gas that tolerance is Q;
(3) keep certain time interval T, record the atmospheric pressure value F in the described closed container;
(4) with described atmospheric pressure value F and maximal value M and minimum value m contrast, if F equals M, then tested product seals; Simultaneously F is greater than m if F is less than M, and F continues to diminish, and then tested product slightly leaks gas; If F equals m, then tested product seriously leaks gas.
8. tightness testing method utilizes the seal degree of each described sealing test instrument test products of claim 1 to 6, it is characterized in that, may further comprise the steps:
(1) product that will seal fully is communicated with described closed container, charges into the gas that tolerance is Q in described closed container, and records the atmospheric pressure value in the described closed container, is made as maximal value M; Packing less product is communicated with described closed container, in described closed container, charges into the gas that tolerance is Q, and record the atmospheric pressure value in the described closed container, be made as minimum value m;
(2) tested product is communicated with described closed container, and in described closed container, charges into the gas that tolerance is Q;
(3) keep certain time interval T, record the atmospheric pressure value F in the described closed container;
(4) with described atmospheric pressure value F and maximal value M and minimum value m contrast, if F equals M, then tested product seals; Simultaneously F is greater than m if F is less than M, and F continues to diminish, and then tested product slightly leaks gas; If F equals m, then tested product seriously leaks gas.
CN201310146732.7A 2013-04-24 2013-04-24 Seal testing instrument and seal testing methods Active CN103257022B (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN104535278A (en) * 2014-12-31 2015-04-22 珠海凌达压缩机有限公司 Detecting method and device for work-piece air tightness
CN104913887A (en) * 2015-06-19 2015-09-16 山东理工大学 Inner tube detection device and inner tube detection method
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
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

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CN201476945U (en) * 2009-07-08 2010-05-19 吴美娟 Rapid waterproof performance detection device for LED blister lamps
CN102095589A (en) * 2009-12-15 2011-06-15 东风德纳车桥有限公司 Air-tightness detection device for automobile axle assembly
CN203275037U (en) * 2013-04-24 2013-11-06 东莞市奇易电子有限公司 Seal test device

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Publication number Priority date Publication date Assignee Title
CN104535278A (en) * 2014-12-31 2015-04-22 珠海凌达压缩机有限公司 Detecting method and device for work-piece air tightness
CN104913887A (en) * 2015-06-19 2015-09-16 山东理工大学 Inner tube detection device and inner tube detection method
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
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

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