CN1414348A - Method of shortening the testing time of air conditioner reliability - Google Patents
Method of shortening the testing time of air conditioner reliability Download PDFInfo
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- CN1414348A CN1414348A CN01129813A CN01129813A CN1414348A CN 1414348 A CN1414348 A CN 1414348A CN 01129813 A CN01129813 A CN 01129813A CN 01129813 A CN01129813 A CN 01129813A CN 1414348 A CN1414348 A CN 1414348A
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Abstract
A test method for reliability of air conditioner includes following steps: The temperature control of the conditioner is set to the grade of the low temperature making the conditioner in the long time running state. The indoor machine is put into the insulated cabinet, setting the conditioner in the mode of working at the low temperature continuously. The operating voltage higher than the rated operational voltage is provided for the conditioner. The conditioner is started for running a period of time. Under the environment temperature 10-40 deg.c, both of the indoor and outdoor machines are continuously running for more than 100 hrs. Then, the conditioner is switched to the normal state so as to complete the test. The test method possesses the features of shortening the test time, lowering the testing cost, speeding up the test process to expose the potential malfunction.
Description
Technical field
The present invention relates to the air conditioner reliability detection technique, be specifically related to a kind of method that shortens the air conditioner reliability test period.
Background technology
In the prior art, how not repair or to repair less in phase designed life of household electronic products is an important parameter that embodies product quality quality and management level height, also is a key factor of following competition between the producer.Producer has only the incipient fault of finding air conditioner by quick, accurate and effective and economic acceleration reliability test method, improves reliability of products, could establish oneself in an unassailable position forever in intense market competition.
At present traditional reliability test method normally by extracting the air conditioner of 30-60 quantity, at normal temperatures, carries out 6 months running test continuously, pinpoints the problems with this.The shortcoming of this method is: it is big to test required place, and electric power and human resources have high input, and the test period is long, and the detectable problem of institute is limited.Because the test period is long, often when fail-test finished, the short product of some market lifes had missed the golden season of selling.Because this test method is simpler, and function and the reliability of some air conditioners under particular service requirement is difficult to verify.
Another shortcoming of carrying out fail-test at normal temperatures is, when environment temperature is lower than 18 ℃, and the fail-test that can not freeze.When under higher environment temperature, testing, can not fully verify work long hours reliability under cryogenic conditions of each parts of indoor set.
Also having a kind of reliability test method is the special test storehouse body of setting up, but, in the body of test storehouse, carry out fail-test, not only build the storehouse body need inject capital into bigger, body power consumption in storehouse own is also big, the test period is identical with first kind, the project of being tested is also limited, the experimentation cost height, in this test method, because of being subjected to the influence of storehouse body size, the air conditioner quantity that can test is very limited.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of method that shortens the air conditioner reliability test period is provided, when shortening test period, also can make the relevant parts in the air conditioner accelerate to expose its potential fault, the project of fail-test is more wider, shorten test period, reduce experimentation cost, product can be put on market as early as possible.
Technical scheme provided by the invention is, constructs a kind of method that shortens the air conditioner reliability test period, it is characterized in that, may further comprise the steps;
The temperature control setting of air conditioner is kept off at low temperature, and make air conditioner be in long-time operating condition; Indoor machine of air-conditioner is placed in the insulation casing; Make air conditioner can operate continually under the low temperature environment; Provide the working voltage that is higher than rated operational voltage to air conditioner, start the continuous operation of air conditioner and be no less than 100 hours; Again with indoor unit and outdoor unit with placing under 10 ℃-40 ℃ the environment temperature, after operation is no less than 100 hours continuously, change normal operating condition over to, finish test.
In above-mentioned method according to shortening air conditioner reliability test period provided by the invention, described temperature control retaining with air conditioner is arranged on the low temperature retaining, and air conditioner is in the long-time operating condition step, be that temperature control setting with air conditioner is at 18 ℃, with the short circuit of indoor set temperature-sensitive control device, after making air conditioner start operation, detected indoor temperature is in maximum temperature always, and air conditioner can carry out continual long-time " refrigeration " operation.
In above-mentioned method according to shortening air conditioner reliability test period provided by the invention, described indoor machine of air-conditioner is placed is incubated in the casing; Air conditioner can be operated continually under the low temperature environment in the step, is that indoor machine of air-conditioner is placed in the slightly bigger insulation casing of volume ratio indoor set, in the appropriate location of casing temperature detecting point is set, and air conditioner works under the environment temperature that is lower than-1 ℃.
In above-mentioned method according to shortening air conditioner reliability test period provided by the invention, described working voltage is higher than 10% of air conditioner rated operational voltage.
In above-mentioned method according to shortening air conditioner reliability test period provided by the invention, described with in the indoor set temperature-sensitive control device short circuit step, be with the temperature-sensitive thermistor short circuit in the indoor set.
Implement reliability test method provided by the present invention, by taking to improve operating voltage, the short circuit temperature sensing device makes air conditioner be operated in the medium measure of low temperature environment, can quicken to expose the incipient fault in the air conditioner, thereby shortens test period; Reduce experimentation cost, compare with traditional test method, have and need not to build low temperature warehouse, the restriction in quantity, place can not be put to the test, advantage such as cost is low, easily carry out, adopt the method for this accelerated test, can significantly shorten test period, reduce the experiment quantity of air conditioner, improve test efficiency, reduce experimentation cost, and, be higher than rated operational voltage when operation, also can make relevant parts in the air conditioner quicken to be exposed to incipient fault under the abominable condition of work, to the raising of air conditioner quality and reliability, played great effect.
Embodiment
By test method provided by the invention, shorten test period by taking following measure, at first be with the temperature-sensitive control device short circuit in the indoor set (short circuit of temperature-sensitive thermistor); Can make air conditioner start the detected indoor temperature in operation back like this and be in maximum temperature (can not testing environment variation of temperature) always; And the temperature of air conditioner control gear is set to 18 ℃, and air conditioner is moved continuously with the pattern start of " refrigeration "; No matter it is how low that the residing environment temperature of indoor set has, air conditioner can both carry out " refrigeration " operation for a long time;
Casing cover with the bigger little indoor set of used for indoor machine volume gets up again, this casing is made with the material of insulation, can make air conditioner when operation, its indoor set can operate continually under the environment temperature that is lower than-1 ℃, can fully test work long hours reliability under cryogenic conditions of each parts of indoor set, also can temperature detecting point be set, to understand the variation of indoor set environment temperature in the appropriate location of casing;
The working voltage that is higher than rated operational voltage is provided to air conditioner, the life-span of finding system's event of air conditioner refrigeration and circuit block after deliberation meets contrary power rate t=1/dpc, d is a unknown parameter, and c is the parameter relevant with temperature, and p is the parameter relevant with pressure, load and voltage.Therefore supply voltage is high more, its serviceable life is short more, generally be to power to air conditioner with 110% of rated operational voltage, when air conditioner moves under being higher than the situation of rated operational voltage, the reduction of evaporator temperature on the one hand, the compressor return air temperature is reduced, low pressure reduces in the compressor, the supply voltage of compressor is higher on the other hand, rotating speed is relatively also high, torque is bigger, this running status can make the height of compressor, the low pressure pressure ratio increases, and pressure ratio increases, also make the torque of compressor increase, thereby make compressor operating in overladen operating condition, accelerate to expose its potential fault, in addition, under higher supply voltage, indoor fan motor, indoor interchange wind direction motor, rotating speed of motor such as outdoor fan motor all are higher than rotating speed of motor under the rated voltage, can quicken to expose the incipient fault of motor and fan part, under higher supply voltage, also can quicken to expose fan electric capacity, the incipient fault of compressor operating electric capacity, improve the working voltage of air conditioner, can obtain multiple test findings.
Make air conditioner after being higher than under the state of operating voltage operation a period of time, again with indoor unit and outdoor unit with placing under 10 ℃-40 ℃ the environment temperature (cold test), operation is no less than 100 hours continuously;
In above-mentioned duration of test, air conditioner phenomenons such as housing distortion, component failure should not occur, after the off-test air conditioner is returned to the normal condition operation, and the air conditioner all functions should be normal, and security parameter should meet the GB requirement, finishes test.
When air conditioner is carried out fail-test, also can be in conjunction with other acceleration reliability test project, thus reach the purpose that improves test efficiency.
Compare with common reliability test method by test method provided by the invention and to have the following advantages:
1, air conditioner room unit is operated continually in the environment temperature about-1 ℃, each parts of indoor set operate continually in the state of the minimum operating temperature when being lower than the air conditioner refrigerating operaton, the reliability during each parts refrigerating operaton of accelerated test indoor set.
2, improve working voltage, can make on the one hand the compressor return air temperature to be reduced the reduction of evaporator temperature, low pressure reduces in the compressor, the supply voltage of compressor is higher on the other hand, rotating speed is relatively also high, and torque is bigger, and this running status can make the high and low pressure pressure ratio of compressor increase, and pressure ratio increases, also make the torque of compressor increase, thereby make compressor operating in overladen operating condition, accelerate to expose its potential fault.
3, under higher supply voltage, rotating speed of motor such as indoor fan motor, indoor interchange wind direction motor, outdoor fan motor all are higher than rotating speed of motor under the rated voltage, can quicken to expose the incipient fault of motor and fan part, under higher supply voltage, can quicken to expose the incipient fault of fan electric capacity, compressor operating electric capacity.
4, the indoor set frequent operation can be tested the reliability that it crosses cold defencive function in the cold protection of the mistake of indoor Guan Wen.
5, also can test the anti-icing stifled dependability of air-conditioner refrigerating system.
6, since short circuit indoor set temperature-sensitive thermistor, can make that being lower than 18 ℃ at indoor environment temperature also can carry out refrigeration test.
7, can reduce the platform number of test, the incipient fault of air conditioner takes place from beginning to be tested to fault, even the product of same type, the time length of the appearance of its fault is also inequality, in routine test regularly, what the required time of some fault was long just can not expose, and has only the incipient fault that could more comprehensively find air conditioner with more testing table number, after adopting this test method, can make fault whole shortening of exposure duration, therefore, required testing table number can reduce.
Adopt fail-test of the present invention to need not to build low temperature warehouse, the restriction in quantity, place can not be put to the test, cost is low, easily carry out, adopt the method for this accelerated test, not only shortened test period (only need conventional test time 1/10th), reduced experiment quantity, improved test efficiency, reduced experimentation cost, and, quicken to have exposed the incipient fault of air conditioner under mal-condition, to the raising of air conditioner quality and reliability, play great effect, shortened the cycle of launch products.
Claims (5)
1, a kind of method that shortens the air conditioner reliability test period is characterized in that, may further comprise the steps;
The adjustment of air conditioner is arranged on the low temperature retaining, and makes air conditioner be in long-time operating condition;
Indoor machine of air-conditioner is placed in the insulation casing; Make air conditioner can operate continually under the low temperature environment;
Provide the working voltage that is higher than rated operational voltage to air conditioner, start air conditioner, indoor set is moved under low temperature environment continuously be no less than 100 hours;
Again with indoor unit and outdoor unit with placing under 10 ℃-40 ℃ the environment temperature, the working voltage that is higher than rated operational voltage is provided, after operation is no less than 100 hours continuously, change normal operating condition over to, finish test.
2, according to the method for the described shortening air conditioner reliability of claim 1 test period, it is characterized in that, described adjustment with air conditioner is arranged on the low temperature retaining, and air conditioner is in the long-time operating condition step, be temperature control setting with air conditioner at 18 ℃, with the short circuit of indoor set temperature-sensitive control device, make air conditioner start operation after, detected indoor temperature is in maximum temperature always, and air conditioner can continual long-play.
According to the method for the described shortening air conditioner reliability of claim 1 test period, it is characterized in that 3, described indoor machine of air-conditioner is placed is incubated in the casing; Air conditioner can be operated continually under the low temperature environment in the step, is that indoor machine of air-conditioner is placed in the slightly bigger insulation casing of volume ratio indoor set, in the appropriate location of casing temperature detecting point is set, and air conditioner works under the environment temperature that is lower than-1 ℃.
According to the method for the described shortening air conditioner reliability of claim 1 test period, it is characterized in that 4, described working voltage is higher than 10% of air conditioner rated operational voltage.
5, according to the method for the described shortening air conditioner reliability of claim 2 test period, it is characterized in that, described with in the indoor set temperature-sensitive control device short circuit step, be with the temperature-sensitive thermistor short circuit in the indoor set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011298138A CN1247964C (en) | 2001-10-23 | 2001-10-23 | Method of shortening the testing time of air conditioner reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011298138A CN1247964C (en) | 2001-10-23 | 2001-10-23 | Method of shortening the testing time of air conditioner reliability |
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| Publication Number | Publication Date |
|---|---|
| CN1414348A true CN1414348A (en) | 2003-04-30 |
| CN1247964C CN1247964C (en) | 2006-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011298138A Expired - Fee Related CN1247964C (en) | 2001-10-23 | 2001-10-23 | Method of shortening the testing time of air conditioner reliability |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349614B (en) * | 2008-08-08 | 2011-03-30 | 海信科龙电器股份有限公司 | Multi-stress reinforced simulation test method of air conditioner |
| CN102288910A (en) * | 2011-07-29 | 2011-12-21 | 海信容声(广东)冰箱有限公司 | Test method for temperature fuse component |
| CN103528166A (en) * | 2013-10-17 | 2014-01-22 | 深圳麦克维尔空调有限公司 | Air conditioner system low-temperature starting method |
| CN113632115A (en) * | 2019-03-29 | 2021-11-09 | 大金工业株式会社 | Maintenance contract fee calculation system |
-
2001
- 2001-10-23 CN CNB011298138A patent/CN1247964C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349614B (en) * | 2008-08-08 | 2011-03-30 | 海信科龙电器股份有限公司 | Multi-stress reinforced simulation test method of air conditioner |
| CN102288910A (en) * | 2011-07-29 | 2011-12-21 | 海信容声(广东)冰箱有限公司 | Test method for temperature fuse component |
| CN103528166A (en) * | 2013-10-17 | 2014-01-22 | 深圳麦克维尔空调有限公司 | Air conditioner system low-temperature starting method |
| CN103528166B (en) * | 2013-10-17 | 2016-06-08 | 深圳麦克维尔空调有限公司 | The testing method of air-conditioning system cold-starting |
| CN113632115A (en) * | 2019-03-29 | 2021-11-09 | 大金工业株式会社 | Maintenance contract fee calculation system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1247964C (en) | 2006-03-29 |
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