A kind of multiplication of voltage test method of alminium electrolytic condenserTechnical field
The present invention relates to alminium electrolytic condenser fields, and in particular to a kind of multiplication of voltage test method of alminium electrolytic condenser.
Background technique
Alminium electrolytic condenser is common electronic component in various circuits, comprehensive performance, especially its service life and peaceQuan Xing, can be directly related to obtain commercial success using its Related product.
The factor for influencing aluminum electrolytic capacitor life and safety is very more, such as in process of production, may introduceAluminium foil burr, electrolytic paper impurity etc.；During the work time, operating ambient temperature, self-heating and electric current, voltage excess loadDeng.Above-mentioned factor can cause alminium electrolytic condenser fever expansion or even pop, and this requires popping for alminium electrolytic condenser to beIt is safely controllable, new security risk will not be generated, such as produce that the electrolytic paper with spark, the side at non-anti-explosion groove is quick-fried, occursSpark phenomenon etc..For this purpose, the excessively a certain test voltage of traditional multi-pass under normal temperature conditions tests alminium electrolytic condenser, with inspectionIt is whether normal, safe, controllable to survey its failure, the selection of test voltage is than more random, single, fixed, it is difficult to represent aluminium electroloysis electricityHold actual failure scene, the credibility of test result is not strong.
With the extensive use of alminium electrolytic condenser, need to improve the deficiency of its detection method.
Summary of the invention
To overcome deficiencies of the prior art, the present invention provides a kind of multiplication of voltage test method of alminium electrolytic condenser,Its representative and testing result credibility is stronger.The invention is realized by the following technical scheme: a kind of times of alminium electrolytic condenserPress test method, comprising the following steps:
Test one: using direct current, under the conditions of the first temperature, applies x seconds first voltages to alminium electrolytic condenser；
The step of tuning up the first voltage and retest one step by step, until the alminium electrolytic condenser fails；
Test two: using direct current, under the conditions of second temperature, applies y seconds second voltages to alminium electrolytic condenser；
The step of tuning up the second voltage and retest two step by step, until the alminium electrolytic condenser fails.
Preferably, further comprising the steps of:
Test three: using direct current, under the conditions of third temperature, applies z seconds tertiary voltages to alminium electrolytic condenser；
The step of tuning up the tertiary voltage and retest three step by step, until the alminium electrolytic condenser fails.
Preferably, first temperature is room temperature, and the second temperature is greater than room temperature, less than 125 DEG C.
Preferably, the numerical value of the n and the m are all larger than 45, less than 75.
Preferably, in test one and test two, first, second electricity is gradually tuned up with 8~12 volts of amplitudePressure.
Preferably, initial temperature when first, second, third temperature is alminium electrolytic condenser test.
Preferably, the second temperature is 85 DEG C, and the third temperature is 105 DEG C.
Preferably, the first voltage is greater than the voltage rating of the alminium electrolytic condenser, and the second voltage is greater than describedThe voltage rating of alminium electrolytic condenser is less than the first voltage.
The present invention can observe failure conditions of the alminium electrolytic condenser under different temperatures, voltage conditions, be confirmed whether it is normal,It is safe, controllable, it is strong to the considered repealed situation simulation of alminium electrolytic condenser, it is more representative, therefore the credibility of test resultIt is stronger.
Specific embodiment
The present invention is further described With reference to embodiment:
As an example, the multiplication of voltage test method of the present embodiment alminium electrolytic condenser, the volume of used alminium electrolytic condenserDegree voltage is 600V, and its step are as follows:
It is the preparation of multiplication of voltage test device first.DC power supply is to provide test voltage and electric current, by testing capacitor twoA wiring is connected to framed bent two sides pin, oven is adjusted to required test temperature under the test of temperature difference, in order to facilitate observation of productThe safety of in testing the phenomenon that and tester use transparent safety anti-explosion cover, the electrolyte inside in product positive normally open valveOdorous gas will be overflowed by being evaporated is discharged it using smoke extractor.
(1) capacitor is inserted on framed bent, is divided in 1.1 times of product specification rated operational voltage and corresponding suitable current 1Clock 10V up regulates and controls, until product failure.The observation whether positive normally open valve of product is what kind of pops mode, if there are safetyHidden danger.
Multiplication of voltage test under the conditions of (2) 85 DEG C: a multi-purpose oven is tested compared to room temperature and is modulated 85 DEG C and in quiltTesting capacitor should before be put into oven toast it is following carry out multiplication of voltage test again and test starting point be 1.06 times or so start intoRow test, remaining is consistent with room temperature testing procedure.
Multiplication of voltage test under the conditions of (3) 105 DEG C: being wherein the corresponding voltage rating of capacitor except the test of starting point multiplication of voltage, remainingIbid test mode is consistent.
Test data is as follows:
1. explosion-proof test:
Experimental condition: 800VDC 1A
Test result: 10pcsOK, wherein 3pcs line is quick-fried, and 7pcs point is quick-fried
2. room temperature multiplication of voltage:
Experimental condition: 660V voltage starts the 10V 1A that progressively increases for 1 minute under room temperature
Test result is as follows:
3. 85 DEG C of multiplication of voltages:
Experimental condition: 640V voltage starts the 10V 1A that progressively increases for 1 minute in 85 DEG C of ovens
Test result is as follows:
4. 105 DEG C of multiplication of voltages:
Experimental condition: 600V voltage starts the 10V 1A that progressively increases for 1 minute at 105 DEG C
Test result is as follows:
By above-mentioned test, failure conditions of the alminium electrolytic condenser under different temperatures, voltage conditions are observed, can confirm itWhether failure is normal, safe, controllable.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Illustrative description is carried out to the invention patent above, it is clear that the realization of the invention patent is not by aforesaid wayLimitation, as long as use the invention patent method concept and technical solution carry out various improvement, or it is not improved will thisThe conception and technical scheme of patent of invention directly apply to other occasions, are within the scope of the invention.