CN113945793B - Accelerated electrification aging test device for electronic device - Google Patents
Accelerated electrification aging test device for electronic device Download PDFInfo
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- CN113945793B CN113945793B CN202111559237.XA CN202111559237A CN113945793B CN 113945793 B CN113945793 B CN 113945793B CN 202111559237 A CN202111559237 A CN 202111559237A CN 113945793 B CN113945793 B CN 113945793B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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Abstract
The invention relates to an accelerated charged aging test device for electronic devices, which comprises a box body, a test cabin and a humidifying device, wherein the surface of the box body is provided with an access terminal, the test cabin is provided with a separation box and a first heating device, the separation box is covered above the devices and is communicated with the test cabin, the rear wall of the test cabin is provided with a switching terminal which is respectively electrically connected with a device to be tested and the access terminal, the humidifying device comprises a humidifying barrel, a second heating device, a temperature and humidity sensor, an air inlet pipe and a water return pipe, the air inlet pipe is connected to the middle upper part of the test cabin, the water return pipe is connected to the bottom of the test cabin, the temperature and humidity sensor comprises a dry ball sensor which penetrates through the rear wall of the test cabin and extends into the test cabin and a wet ball sensor which is arranged in the humidifying barrel and is close to the air inlet pipe; the water vapor generating device can be arranged outside, so that the hidden danger of water boiling in the cabin is avoided, and the cost is reduced; aging and bias voltage testing can be simultaneously carried out, and the efficiency and the comprehensiveness are improved.
Description
Technical Field
The invention relates to an accelerated charged aging test device for an electronic device, which is suitable for the technical field of aging test of electronic components.
Background
In high-precision industries such as 5G communication, aerospace, semiconductors, and the like, reliability verification is required to be performed on most electronic devices before the electronic devices are put on the market to ensure the quality of products. The reliability verification generally detects chemical or physical changes of the product in a complex environment by changing basic parameters such as temperature, humidity and pressure around the product; or a bias power supply is applied to the product to test the electrical variables of the product in extreme cases.
The accelerated aging tester increases the water vapor pressure to a certain degree to improve the environmental stress, accelerates the aging process of the product and further shortens the test period. Most of the existing accelerated aging test machines directly heat water in a cavity to form water vapor, for example, the device disclosed in the patent with the application number of CN201710368553.6 heats a test chamber by a heating fan arranged at the rear side of the test chamber, then injects a certain amount of water into the cavity by a water pumping motor, and heats the water vapor by a heating pipe arranged at the bottom of the cavity to form a high-temperature, high-humidity and high-pressure test environment. However, the heating fan arranged in the cavity and the water at the bottom of the cavity can obstruct the access of the power supply, and particularly, the water in the cavity is easy to cause power supply short circuit damage in the test process, so that the equipment can only carry out a common accelerated aging test, but cannot carry out a bias test on the electrified product, and the detection result has great limitation.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides an accelerated charged aging test device for an electronic device.
The technical scheme adopted by the invention is as follows: the utility model provides an accelerated electrified aging testing arrangement for electron device, includes the box, sets up the test cabin in the box inside, sets up the humidification device that is used for the test cabin supplies water vapor in the box inside, is used for controlling the control assembly of test device operation.
The lower part of the test chamber is provided with a layer frame, the layer frame is provided with a separation box for accommodating the tested electronic device, the separation box is covered above the tested electronic device, a first heating device for heating the inner space of the test chamber is arranged in the test chamber, the separation box is communicated with the test chamber, the rear wall of the test chamber is penetrated with a switching terminal for supplying power to the tested electronic device, the surface of the box body is provided with an access terminal for connecting a power supply, the switching terminal is respectively electrically connected with the tested electronic device and the access terminal, the accelerated aging test can be carried out on the tested electronic device at the same time of bias test, so as to detect the running state of the tested electronic device under the limit state, the comprehensiveness and reliability of the verification result are improved, and due to the arrangement of the separation box and the first heating device, the box wall of the separation box is heated faster than the inner wall of the test chamber, the condensation water that can avoid vapor to liquefy at the inboard of divider box to can block the test cabin inner wall drippage, prevent to be surveyed the electronic device and connect the circuit abnormal damage of switching terminal, make the bias voltage test can normally go on, first heating device is connected with control assembly's output, can be controlled its heating or stop by control assembly.
The humidifying device comprises a humidifying barrel, a second heating device which is arranged inside the humidifying barrel and is used for generating vapor in the humidifying barrel, a temperature and humidity sensor for measuring the temperature and humidity in the test chamber, an air inlet pipe for introducing the vapor in the humidifying barrel into the test chamber, and a water return pipe for recovering condensed water generated in the test chamber to the humidifying barrel, wherein the test chamber is introduced after the vapor is generated in the humidifying barrel, so that the short-circuit risk caused by directly heating water in the test chamber during bias test is avoided, the device damage caused by accidental water falling when a tested device is taken can be prevented, the heat emitted by the first heating device can be driven by the flow of the vapor to realize rapid temperature rise, the fan heating in the prior art is replaced, the structure of the test chamber is simplified, the power supply is connected in the test chamber, and the cost increase caused by aging of the accessories is avoided, one end of the air inlet pipe is connected to the middle upper part of the test chamber, the other end of the air inlet pipe is connected to the upper part of the humidification barrel, steam can be conveniently and smoothly introduced into the test chamber, condensed water is prevented from being gathered to submerge the air inlet, one end of the water return pipe is connected to the bottom of the test chamber, condensed water recycling is convenient, the temperature and humidity sensor comprises a dry ball sensor and a wet ball sensor, the dry ball sensor penetrates through the rear wall of the test chamber and extends into the test chamber, temperature values can be measured while comparative humidity values are obtained, the wet ball sensor is arranged in the humidification barrel and is close to the air inlet pipe, the humidity values obtained by the wet ball sensor are accurate through high-humidity steam at the air inlet, gauze and a water tank are not required to be arranged at the wet ball, the structure of the device is simplified, the problem that 100% of humidity detection is displayed when the water tank is lack of water is avoided, the second heating device is connected with the output end of the control assembly, the temperature and humidity sensor is connected with the input end of the control component, and the control component can control the test device to heat or pressurize and humidify according to the temperature and humidity value input by the temperature and humidity sensor.
Specifically, the testing device has two working modes of an unsaturated accelerated aging test and a saturated high-pressure accelerated aging test: when the temperature in the test chamber is adjusted through the first heating device and the humidity and the pressure in the test chamber are adjusted through the humidifying device, the test device can perform an unsaturated accelerated aging test; when the temperature, the humidity and the pressure in the test cabin are adjusted only through the humidifying device, the testing device can perform a saturated high-pressure accelerated aging test.
The humidifying device further comprises a water level sensor for measuring the water level, a water supplementing device for supplementing water to the humidifying barrel and a water tank communicated with the water supplementing device, wherein the water level sensor is connected with the input end of the control assembly, the water supplementing device is connected with the output end of the control assembly, the water level sensor is arranged at the top of the humidifying barrel and extends into the humidifying barrel, and when the water level sensor detects that the water amount in the humidifying barrel is lower than a set lower limit value, the control assembly controls the water supplementing device to supplement water to the humidifying barrel; when the water level sensor detects that the water volume in the humidification barrel is higher than the set upper limit value, the control assembly controls the water replenishing device to stop replenishing water so as to ensure that enough water volume is stored in the humidification barrel and prevent the test device from being damaged due to water shortage.
Further, be provided with the overtemperature prote ware that is used for detecting the second heating device temperature on the second heating device, when the overtemperature prote ware detected the temperature of second heating device and is higher than the upper limit value, then second heating device's power cuts off, prevents that the second heating device that lack of water leads to in the humidification bucket from burning futilely, improves testing arrangement's safety in utilization.
Furthermore, the first heating device is arranged between the layer frame and the bottom surface of the separation box, so that the temperature of the interior of the separation box can be rapidly increased, the trend of a power line of the first heating device can be reasonably arranged, and the space utilization in the test chamber is improved.
Furthermore, the top surface of the separation box is arched from two sides to the middle from bottom to top to form a circular arc shape, so that condensed water can flow to two sides along the wall of the separation box and cannot drop on a tested device, and the condensed water on the top of the test chamber can flow to the bottom of the test chamber when dropping on the top surface of the separation box, thereby being convenient for gathering and recycling.
Furthermore, the switching terminal and the rear wall of the test cabin are sealed and fixed through sealant, so that water and air leakage at the joint is prevented, and the sealing performance of the test cabin is ensured.
Furthermore, a balance valve which is communicated with the test chamber and used for balancing the air pressure in the test chamber is arranged on the rear wall of the test chamber, and the balance valve is connected with the output end of the control assembly, so that the temperature, the humidity and the pressure in the test chamber can be conveniently regulated and controlled at any time.
Furthermore, a safety valve which is communicated with the test chamber and is used for detecting the air pressure in the test chamber is arranged on the rear wall of the test chamber, and when the safety valve detects that the air pressure in the test chamber is higher than a set upper limit value, the safety valve is opened; when the safety valve detects that the air pressure in the test chamber is lower than the set lower limit value, the safety valve is closed, and explosion caused by overlarge pressure in the test chamber is prevented.
Further, a condenser used for cooling the water vapor in the test cabin is further arranged in the box body, so that the water vapor in the test cabin can be rapidly cooled and liquefied after the test is finished, and the recovery efficiency of the condensed water is improved.
Further, the box surface is provided with the manometer that is used for controlling the control panel of testing arrangement operation and is used for showing atmospheric pressure in the test chamber, and control panel and control assembly communication are connected, improve testing arrangement's simple operation nature, and the manometer can show the atmospheric pressure in the test chamber in real time, makes things convenient for operating personnel to observe.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the accelerated electrification aging test device for the electronic device, disclosed by the invention, the test cabin is introduced after water vapor is generated outside the test cabin, so that the hidden danger caused by heating water in the test cabin is avoided, air flow can be formed by utilizing the water vapor, a heating fan is avoided being arranged in the test cabin, the structure in the test cabin is simplified, a product in the test cabin is powered on, the aging test can be carried out while a bias test is carried out, the test efficiency and the comprehensiveness of the result are improved, and the test cost is also reduced; in addition, the separating box is arranged in the test chamber, so that condensation water can be prevented from being condensed on the inner wall of the separating box, the condensation water dripping on the inner wall of the test chamber can be blocked, and abnormal damage to devices and circuits caused by the fact that the condensation water drips on the tested devices and the circuits connected with the switching terminals is prevented.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a side cross-sectional view of the embodiment shown in FIG. 1;
FIG. 3 is a schematic diagram of the test chamber of the embodiment of FIG. 1;
wherein the reference numerals are as follows:
1. a box body; 11. an access terminal; 12. a condenser; 13. a control panel; 14. a pressure gauge; 2. a test chamber; 21. layering; 22. a separate tank; 23. a first heating device; 24. a transfer terminal; 25. a balancing valve; 26. a safety valve; 3. a humidifying device; 31. a humidifying barrel; 32. a second heating device; 321. an overtemperature protector; 33. an air inlet pipe; 34. a water return pipe; 35. a dry-bulb sensor; 36. a wet bulb sensor; 37. a water level sensor; 38. a water replenishing device; 39. a water tank.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1-3, the present embodiment provides an accelerated aging test apparatus for electronic devices, which includes a box 1, a test chamber 2 disposed inside the box 1, a humidifying device 3 disposed inside the box 1 for supplying water vapor to the test chamber 2, and a control assembly for controlling the operation of the test apparatus.
The surface of the box body 1 is provided with a control panel 13 used for controlling the operation of the testing device, and a pressure gauge 14 used for displaying the air pressure in the testing chamber 2, the control panel 13 is in communication connection with a control assembly, the operation convenience of the testing device is improved, the pressure gauge 14 can display the air pressure in the testing chamber 2 in real time, and the observation of operators is facilitated.
The lower part of the test chamber 2 is provided with a layer frame 21, the layer frame 21 is provided with a separation box 22 for accommodating the tested electronic device, the separation box 22 is covered above the tested electronic device, the test chamber 2 is internally provided with a first heating device 23 for heating the inner space of the test chamber 2, the separation box 22 is communicated with the test chamber 2, the first heating device 23 is connected with the output end of the control component and can be controlled by the control component to heat or stop, the rear wall of the test chamber 2 is provided with a switching terminal 24 for supplying power to the tested electronic device in a penetrating way, the switching terminal 24 is sealed and fixed with the rear wall of the test chamber 2 through sealant, the water and air leakage at the connection part is prevented, the sealing performance of the test chamber 2 is ensured, the surface of the box body 1 is provided with an access terminal 11 for connecting a power supply, the switching terminal is respectively electrically connected with the tested electronic device and the access terminal 11, and the tested electronic device can be subjected to bias test while an accelerated aging test is carried out, the operation state of the tested electronic device under the detection limit state is used for improving the comprehensiveness and reliability of the verification result, due to the arrangement of the separating box 22 and the first heating device 23, the box wall of the separating box 22 is heated faster than the inner wall of the test chamber 2, the water vapor can be prevented from being liquefied at the inner side of the separating box 22, the condensed water dripped on the inner wall of the test chamber 2 can be blocked, the tested electronic device and the circuit connected with the adapter terminal 11 are prevented from being damaged abnormally, so that the bias test can be carried out normally, the balance valve 25 communicated with the test chamber 2 and used for balancing the air pressure in the test chamber 2 and the safety valve 26 communicated with the test chamber 2 and used for detecting the air pressure in the test chamber 2 are arranged on the rear wall of the test chamber 2, the balance valve 25 is connected with the output end of the control component, the temperature, the humidity and the pressure in the test chamber 2 can be regulated and controlled at any time, when the safety valve 26 detects that the air pressure in the test chamber 2 is higher than the set upper limit value, the safety valve 26 is opened; when the safety valve 26 detects that the air pressure in the test chamber 2 is lower than the set lower limit value, the safety valve 26 is closed to prevent explosion caused by excessive pressure in the test chamber 2.
The humidifying device 3 comprises a humidifying barrel 31, a second heating device 32 which is arranged inside the humidifying barrel 31 and is used for generating steam in the humidifying barrel 31, a temperature and humidity sensor used for measuring the temperature and humidity in the test chamber 2, an air inlet pipe 33 used for introducing the steam in the humidifying barrel 31 into the test chamber 2, and a water return pipe 34 used for recovering condensed water generated in the test chamber 2 to the humidifying barrel 31, wherein the test chamber 2 is introduced after the steam is generated in the humidifying barrel 31, so that the short-circuit risk caused by directly heating water in the test chamber 2 during bias test is avoided, the device damage caused by accidental water falling when a tested device is taken can be prevented, the heat emitted by the first heating device 23 can be driven by the flow of the steam to realize rapid temperature rise, the fan heating in the prior art is replaced, the structure of the test chamber 2 is simplified, and the power supply in the test chamber 2 is realized, avoid the cost increase brought by the aging of accessories, one end of an air inlet pipe 33 is connected to the middle upper part of the test chamber 2, the other end of the air inlet pipe 33 is connected to the upper part of the humidifying barrel 31, so that water vapor can be conveniently and smoothly introduced into the test chamber 2, the air inlet can be prevented from being submerged by the gathering of condensed water, one end of a water return pipe 34 is connected to the bottom of the test chamber 2, so that the recovery of the condensed water is facilitated, a temperature and humidity sensor comprises a dry ball sensor 35 and a wet ball sensor 36, the dry ball sensor 35 is arranged on the rear wall of the test chamber 2 in a penetrating manner and extends into the test chamber 2, the temperature value can be measured while the comparison humidity value is obtained, the wet ball sensor 36 is arranged at the position close to the air inlet pipe 33 in the humidifying barrel 31, the precision of the humidity value obtained by the wet ball sensor 36 is ensured through high-humidity steam at the air inlet, gauze and a water tank are not required to be arranged at the wet ball position, the structure of the device is simplified, and the problem that the humidity detection shows 100% when the water tank is avoided, the second heating device 32 is connected with the output end of the control component, the temperature and humidity sensor is connected with the input end of the control component, and the control component can control the testing device to heat or pressurize and humidify according to the temperature and humidity value input by the temperature and humidity sensor.
Specifically, the testing device has two working modes of an unsaturated accelerated aging test and a saturated high-pressure accelerated aging test: when the temperature in the test chamber 2 is adjusted through the first heating device 23 and the humidity and the pressure in the test chamber 2 are adjusted through the humidifying device 3, the test device can perform unsaturated accelerated aging test; when the temperature, the humidity and the pressure in the test chamber 2 are adjusted only by the humidifying device 3, the test device can perform a saturated high-pressure accelerated aging test.
In a more preferred embodiment, the humidifying device 3 further comprises a water level sensor 37 for measuring the water level, a water replenishing device 38 for replenishing the humidifying cylinder 31 with water, and a water tank 39 communicated with the water replenishing device 38, wherein the water level sensor 37 is connected with the input end of the control assembly, the water replenishing device 38 is connected with the output end of the control assembly, the water level sensor 37 is arranged at the top of the humidifying cylinder 31 and extends into the humidifying cylinder 31, and when the water level sensor 37 detects that the amount of water in the humidifying cylinder 31 is lower than a set lower limit value, the control assembly controls the water replenishing device 38 to replenish the humidifying cylinder 31 with water; when the water level sensor 37 detects that the water amount in the humidification barrel 31 is higher than the set upper limit value, the control component controls the water replenishing device 38 to stop replenishing water, so that enough water amount is stored in the humidification barrel 31, and the test device is prevented from being damaged due to water shortage.
In a more preferred embodiment, the second heating device 32 is provided with an over-temperature protector 321 for detecting the temperature of the second heating device 32, and when the over-temperature protector 321 detects that the temperature of the second heating device 32 is higher than the upper limit value, the power supply of the second heating device 32 is cut off, so that the second heating device 32 is prevented from being dried due to water shortage in the humidifying barrel 31, and the use safety of the testing device is improved.
In a more preferred embodiment, the first heating device 23 is disposed between the shelf 21 and the bottom surface of the separation box 22, so that not only can the interior of the separation box 22 be heated rapidly, but also the power line direction of the first heating device 23 can be reasonably arranged, and the space utilization in the test chamber is improved.
In a more preferred embodiment, the top surface of the compartment 22 is arched from two sides to the middle from bottom to top to form a circular arc shape, so that the condensate can flow along the wall of the compartment 22 to two sides without dripping on the device to be tested, and the condensate on the top of the test chamber 2 can flow to the bottom of the test chamber 2 when dripping on the top surface of the compartment 22, thereby facilitating collection and recovery.
In a more preferred embodiment, a condenser 12 for cooling the water vapor in the test chamber 2 is further disposed in the box body 1, so that the water vapor in the test chamber 2 can be rapidly cooled and liquefied after the test is completed, and the efficiency of recovering the condensed water is improved.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the accelerated electrification aging test device for the electronic device, disclosed by the invention, the test cabin is introduced after water vapor is generated outside the test cabin, so that the hidden danger caused by heating water in the test cabin is avoided, air flow can be formed by utilizing the water vapor, a heating fan is avoided being arranged in the test cabin, the structure in the test cabin is simplified, a product in the test cabin is powered on, the aging test can be carried out while a bias test is carried out, the test efficiency and the comprehensiveness of the result are improved, and the test cost is also reduced; in addition, the separating box is arranged in the test chamber, so that condensation water can be prevented from being condensed on the inner wall of the separating box, the condensation water dripping on the inner wall of the test chamber can be blocked, and abnormal damage to devices and circuits caused by the fact that the condensation water drips on the tested devices and the circuits connected with the switching terminals is prevented.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides an accelerated electrified aging testing arrangement for electron device, includes box (1), sets up test chamber (2) inside box (1), its characterized in that: the testing device also comprises a humidifying device (3) which is arranged inside the box body (1) and is used for supplying water vapor to the testing cabin (2);
the testing device comprises a testing cabin (2), and is characterized in that a shelf (21) is arranged at the lower part of the testing cabin (2), a separation box (22) used for containing an electronic device to be tested is erected on the shelf (21), the separation box (22) is covered above the electronic device to be tested, a first heating device (23) used for heating the inner space of the testing cabin (2) is arranged in the testing cabin (2), the separation box (22) is communicated with the testing cabin (2), a switching terminal (24) used for supplying power to the electronic device to be tested is arranged on the rear wall of the testing cabin (2) in a penetrating mode, an access terminal (11) used for connecting a power supply is arranged on the surface of a box body (1), and the switching terminal is electrically connected with the electronic device to be tested and the access terminal (11) respectively;
the humidifying device (3) comprises a humidifying barrel (31), a second heating device (32) which is arranged in the humidifying barrel (31) and used for generating vapor in the humidifying barrel (31), a temperature and humidity sensor used for measuring the temperature and humidity in the test chamber (2), an air inlet pipe (33) used for introducing the vapor in the humidifying barrel (31) into the test chamber (2), and a water return pipe (34) used for recovering the condensed water generated in the test chamber (2) to the humidifying barrel (31), wherein one end of the air inlet pipe (33) is connected to the middle upper part of the test chamber (2), the other end of the air inlet pipe (33) is connected to the upper part of the humidifying barrel (31), one end of the water return pipe (34) is connected to the bottom of the test chamber (2), the temperature and humidity sensor comprises a dry ball sensor (35) and a wet ball sensor (36), the dry bulb sensor (35) penetrates through the rear wall of the test chamber (2) and extends into the test chamber (2), and the wet bulb sensor (36) is arranged inside the humidification barrel (31) and close to the air inlet pipe (33).
2. The accelerated live weathering test apparatus for electronic devices of claim 1, wherein: the humidifying device (3) further comprises a water level sensor (37) for measuring the water level, a water replenishing device (38) for replenishing water to the humidifying barrel (31) and a water tank (39) communicated with the water replenishing device (38), the water level sensor (37) is arranged at the top of the humidifying barrel (31) and extends into the humidifying barrel (31), and when the water level sensor (37) detects that the amount of water in the humidifying barrel (31) is lower than a set lower limit value, the water replenishing device (38) replenishes water to the humidifying barrel (31); when the water level sensor (37) detects that the water amount in the humidifying barrel (31) is higher than a set upper limit value, the water supplementing device (38) stops supplementing water.
3. The accelerated live weathering test apparatus for electronic devices of claim 1, wherein: the second heating device (32) is provided with an over-temperature protector (321) used for detecting the temperature of the second heating device (32), and when the over-temperature protector (321) detects that the temperature of the second heating device (32) is higher than an upper limit value, the power supply of the second heating device (32) is cut off.
4. The accelerated live weathering test apparatus for electronic devices of claim 1, wherein: the first heating device (23) is arranged between the layer frame (21) and the bottom surface of the separation box (22).
5. The accelerated live weathering test apparatus for electronic devices of claim 1, wherein: the top surface of the separation box (22) is arched from two sides to the middle from bottom to top to form an arc shape.
6. The accelerated live weathering test apparatus for electronic devices of claim 1, wherein: the switching terminal (24) and the rear wall of the test cabin (2) are fixed in a sealing mode through sealing glue.
7. The accelerated live weathering test apparatus for electronic devices of claim 1, wherein: and a balance valve (25) communicated with the test cabin (2) and used for balancing the air pressure in the test cabin (2) is arranged on the rear wall of the test cabin (2).
8. The accelerated live weathering test apparatus for electronic devices of claim 1, wherein: the rear wall of the test chamber (2) is provided with a safety valve (26) which is communicated with the test chamber (2) and is used for detecting the air pressure in the test chamber (2), and when the safety valve (26) detects that the air pressure in the test chamber (2) is higher than a set upper limit value, the safety valve (26) is opened; when the safety valve (26) detects that the air pressure in the test chamber (2) is lower than a set lower limit value, the safety valve (26) is closed.
9. The accelerated live weathering test apparatus for electronic devices of claim 1, wherein: and a condenser (12) for cooling the water vapor in the test chamber (2) is also arranged in the box body (1).
10. The accelerated live weathering test apparatus for electronic devices of claim 1, wherein: the surface of the box body (1) is provided with a control panel (13) for controlling the operation of the testing device and a pressure gauge (14) for displaying the air pressure in the testing cabin (2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111559237.XA CN113945793B (en) | 2021-12-20 | 2021-12-20 | Accelerated electrification aging test device for electronic device |
| PCT/CN2023/073642 WO2023116942A1 (en) | 2021-12-20 | 2023-01-29 | Accelerated electrified aging test apparatus for electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111559237.XA CN113945793B (en) | 2021-12-20 | 2021-12-20 | Accelerated electrification aging test device for electronic device |
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| CN113945793A CN113945793A (en) | 2022-01-18 |
| CN113945793B true CN113945793B (en) | 2022-03-18 |
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| WO (1) | WO2023116942A1 (en) |
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| CN113945793B (en) * | 2021-12-20 | 2022-03-18 | 海拓仪器(江苏)有限公司 | Accelerated electrification aging test device for electronic device |
| CN116047205B (en) * | 2023-01-12 | 2023-06-27 | 海拓仪器(江苏)有限公司 | Sealed pressure container for high-pressure accelerated aging test |
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| CN1922501A (en) * | 2004-02-27 | 2007-02-28 | 威尔斯-Cti股份有限公司 | Aging testing apparatus and method |
| JP2005274415A (en) * | 2004-03-25 | 2005-10-06 | Rigaku Corp | Thermal analysis apparatus and its water vapor generating apparatus |
| JP2006057902A (en) * | 2004-08-19 | 2006-03-02 | Honda Motor Co Ltd | Temperature and humidity controller and control method for heater thereby |
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| JP6670146B2 (en) * | 2016-03-25 | 2020-03-18 | エスペック株式会社 | Environmental test equipment |
| CN206974868U (en) * | 2016-12-26 | 2018-02-06 | 东莞市勤卓环境测试设备有限公司 | A kind of humiture load aging case |
| CN106646060B (en) * | 2016-12-30 | 2019-07-05 | 北京金风科创风电设备有限公司 | Super capacitor reliability test system and temperature imbalance test method |
| CN207300828U (en) * | 2017-03-22 | 2018-05-01 | 东莞市泓进检测仪器有限公司 | A kind of high pressure accelerated aging test case |
| JP6735703B2 (en) * | 2017-04-17 | 2020-08-05 | エスペック株式会社 | Environmental test equipment and environmental test method |
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| CN207742072U (en) * | 2018-02-07 | 2018-08-17 | 东莞市捷快美实业有限公司 | A kind of constant temperature and humidity UV ageing-resistant test machines |
| CN213824860U (en) * | 2020-11-26 | 2021-07-30 | 东莞沃德检测有限公司 | Service robot walk-in constant temperature and humidity experimental device |
| CN214974084U (en) * | 2021-06-23 | 2021-12-03 | 海拓仪器(江苏)有限公司 | Miniature high-low temperature test box |
| CN113945793B (en) * | 2021-12-20 | 2022-03-18 | 海拓仪器(江苏)有限公司 | Accelerated electrification aging test device for electronic device |
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| WO2023116942A1 (en) | 2023-06-29 |
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