An automatic test platform for electronic product aging and a test method thereof
By designing an automatic test platform for aging of electronic products including confined space, safety components and testing components, and using carbon dioxide gas to coat and heat electronic products, the problem of insufficient safety protection of existing test devices is solved, and efficient and safe electronic products aging testing is achieved.
Patent Information
- Application Number
- CN202411408642.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2044-10-10
AI Technical Summary
The existing high-temperature environmental simulation test devices have insufficient safety protection during the testing process, which can easily lead to combustion of the electronic product body and endanger the safety of the test devices and personnel.
An automatic test platform for aging of electronic products was designed. By setting up confined space, safety components and test components on the test platform, the electronic products are coated with carbon dioxide gas, and the carbon dioxide gas is heated through a hot fan to simulate a high-temperature environment to avoid combustion caused by electronic components failures.
Improve test safety, avoid damage to the electronic product body due to combustion during high-temperature environmental testing, simplify the testing steps, save test time and resources, and realize the reuse of carbon dioxide gas and sodium hydroxide solution.
Smart Images

Figure CN119246999B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of electronic product aging testing, and in particular to an electronic product aging automatic testing platform and a testing method thereof. Background Art
[0002] The aging of electronic products is mainly manifested in performance degradation, functional failure, and appearance damage. In order to detect the aging of electronic products, aging tests can be performed on electronic products by simulating aging environments, such as high temperature, low temperature, high humidity, high pressure, etc., to observe the performance of products in extreme environments. When simulating high temperature environments, existing high temperature environment simulation test devices usually use hot air blowers to blow high-temperature air into the test device. This will cause the electronic product body to burn directly if electronic components fail during the high temperature environment test, causing the electronic product body to burn. In more serious cases, it will endanger the safety of the test device and testers.
[0003] For example, a lithium battery high temperature aging detection device disclosed in publication number CN207675899U and a convenient fixed electronic product aging detection platform disclosed in publication number CN209746054U both have the problem of blowing high temperature air into the test device or directly heating the air in the test device. This means that if an electronic component fails during the high temperature environment test of the electronic product body, it will directly react with oxygen in the air to burn, causing the electronic product body to burn. In more serious cases, the safety of the test device and the tester will be endangered. For example, a graphics processing chip GPU aging test device disclosed in publication number CN111610430B also has this problem in the technical solution disclosed in the application.
[0004] Therefore, an automatic testing platform for electronic product aging and a testing method thereof are proposed. Summary of the invention
[0005] In view of the deficiencies in the prior art, the present invention provides an automatic aging test platform for electronic products and a test method thereof, which solves the problem of insufficient safety protection in the current high-temperature environment simulation aging test device.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic aging test platform for electronic products, comprising an electronic product body to be tested and a test platform for testing the electronic product, wherein the test platform is provided with a test component for performing an aging test on the electronic product body and a safety component for isolating oxygen, wherein the test component includes:
[0007] A top cover, movably mounted on the top of the test platform through a bracket, and used to cooperate with the test platform to form a closed space, and the electronic product body is placed in the closed space;
[0008] Rubber pads, fixed on the test platform to improve the airtightness of the confined space;
[0009] A digital multimeter is fixed on the side wall of the test platform and is used to detect the resistance value of the electronic product body. A battery for providing power to the electronic product body is fixed on the bottom of the test platform. A control panel for controlling the test process is fixed on the side wall of the test platform.
[0010] The security components include:
[0011] A gas storage bottle is detachably mounted at the bottom of the test platform for storing carbon dioxide gas, and a gas outlet pipe is fixed to the gas outlet end of the gas storage bottle;
[0012] The hot air blower is fixed on the test platform and connected with the enclosed space through an air outlet pipe to simulate a high temperature environment. The enclosed space is connected with an absorption cabin through an air intake pipe, and an air intake pump is connected to the air intake pipe. The absorption cabin is filled with sodium hydroxide solution.
[0013] Preferably, an upper slider is fixed on the top cover, the bottom of the upper slider abuts against a lower slider, a slide plate is fixed to one end of the lower slider, a spring 1 is fixed to the side wall of the slide plate, the other end of the spring 1 is fixed in the test platform, one end of the slide plate is penetrated in the test platform, a power supply connector and a detection connector are fixed on the slide plate, and a carbon dioxide sensor is fixed in the top cover.
[0014] Preferably, the top of the absorption cabin is fixed to the bottom of the test platform, a circulation pipe is fixed on the side wall of the absorption cabin, a regulating cabin is fixed at one end of the circulation pipe, the side wall of the regulating cabin is connected to the enclosed space through an air pipe, an air pump is connected to the air pipe, and the air pump, hot air blower and suction pump are respectively fixed to the top of the test platform through three outer shells.
[0015] Preferably, a liquid level sensor is fixed in the absorption cabin, an impeller is movably installed in the absorption cabin, a displacement sensor is fixed to the bottom of the regulating cabin through a mounting frame, a hole is opened at the bottom of the regulating cabin, a rubber block is slidably abutted in the regulating cabin, the displacement sensor is located below the hole, the rubber block is located above the hole, a fixing rope is fixed to the top of the rubber block, a toggle plate is fixed to the other end of the fixing rope, the toggle plate is installed in the regulating cabin through a supporting frame, a storage box is fixed to one end of the toggle plate, the storage box is filled with sodium hydroxide solution, and a heating block is fixed in the regulating cabin.
[0016] Preferably, a water outlet pipe is fixed to the bottom of the absorption cabin through a water outlet solenoid valve, a water inlet pipe is fixed to the bottom of the absorption cabin through a water inlet solenoid valve, a control switch 1 is fixed on the side wall of the regulating cabin, and a control switch 2 is fixed to the bottom of the circulation pipe.
[0017] Preferably, a limit rod is slidably penetrated in the absorption chamber, an extrusion rod is fixed to one end of the limit rod, a spring 2 is fixed to one end of the extrusion rod, the other end of the spring 2 is fixed to the side wall of the absorption chamber, the side wall of the extrusion rod abuts against control switch 2, one end of the limit rod is inclined, a sliding rod abuts against the inclined side wall of the limit rod, and a floating plate is fixed to one end of the sliding rod.
[0018] Preferably, a guide rod is fixed on the side wall of the floating plate, one end of the guide rod is inserted into the absorption cabin, a sliding rope is fixed on the top of the floating plate, and a push rod is fixed on the other end of the sliding rope.
[0019] Preferably, a guide rail is provided in the sliding sleeve of the push rod, the side wall of the guide rail is fixed in the absorption cabin, an iron wire is fixed on the control switch, and the other end of the iron wire is fixed to the bottom of the rubber block.
[0020] The present invention also provides a testing method applicable to an electronic product aging automatic testing platform, comprising the following steps:
[0021] S1. Open the top cover, place the electronic product to be tested on the test platform and then close the top cover;
[0022] S2. Control the safety component through the control panel to make the electronic product body in the confined space enter an oxygen-isolated state;
[0023] S3, controlling the test component through the control panel to perform an aging test on the electronic product body;
[0024] S4. Control the safety component through the control panel to release the oxygen isolation state;
[0025] S5. Take out the tested electronic product body and replace it with the next electronic product body to be tested.
[0026] Preferably, the time required for the safety component to make the electronic product body in the enclosed space enter an oxygen-isolated state is between 20s and 30s.
[0027] The present invention provides an electronic product aging automatic test platform and a test method thereof. Compared with the prior art, it has the following beneficial effects:
[0028] (1) The electronic product aging automatic test platform and the test method thereof are provided with a test platform, an electronic product body, a top cover, a rubber pad, an upper slider, a lower slider, a slide plate, a spring, a digital multimeter, a battery, a control panel, a gas cylinder, an air outlet pipe, a hot air blower, an air intake pipe, an air intake pump, an absorption chamber, a flow pipe, a regulating chamber, an air pump, and an air pipe, and the electronic product body undergoing aging test is covered with carbon dioxide gas, so that when the electronic product body undergoes aging test in a high temperature environment, the electronic product body will not be burned due to combustion caused by failure of electronic components. At the same time, the carbon dioxide gas input into the enclosed space is regulated by the hot air blower. After heating, the input is made so that the electronic product body can operate in a high temperature environment. The performance of the electronic components in the electronic product body in an extreme environment is observed to evaluate the durability and stability of the product. There is no need to increase the temperature in the enclosed space by other means to simulate a high temperature environment. While improving the test safety, the test steps are simplified, the test time is saved, and the test efficiency is improved. During the test, the digital multimeter continuously detects the actual resistance value of the internal resistance element when the electronic product body is running in a high temperature environment, and compares the measured resistance value with the standard value indicated on the electronic product specification sheet to determine whether there is an offset in the resistance value to determine the aging of the electronic component.
[0029] (2) The electronic product aging automatic test platform and its test method are provided with an impeller, a displacement sensor, a rubber block, a fixing rope, a toggle plate, a support frame, a storage box, and a heating block. After the test platform has been used for a period of time, the sodium hydroxide solution in the absorption chamber absorbs a sufficient amount of carbon dioxide gas, and then insufficient absorption of carbon dioxide gas may occur. At this time, carbon dioxide gas will enter the regulating chamber through the circulation pipe and sink to the bottom of the regulating chamber, and react with the sodium hydroxide solution in the storage box to produce sodium carbonate and water, thereby increasing the gravity of the storage box, causing the distance value between the displacement sensor and the rubber block to change, and transmitting a signal to the control surface. Board, at this time, no matter what step is being carried out, the hot air blower, the suction pump, and the air delivery pump are all stopped, the water outlet solenoid valve connected to the outlet pipe is opened, the saturated sodium hydroxide solution in the absorption cabin is released, and this part of the sodium hydroxide solution is collected by the collection component and heated, and the carbon dioxide gas therein is released and collected again, and then filled into the gas storage bottle for use again, and the sodium hydroxide solution without carbon dioxide gas can flow into the absorption cabin again through the water inlet pipe for use. During the process, the heating block is operated to heat, so that the saturated sodium hydroxide solution in the storage box begins to release carbon dioxide gas, and the gravity of the storage box is reduced, so that the rubber block returns to Fig.12The state shown blocks the holes at the bottom of the regulating cabin, and the test operation can be continued at this time. The carbon dioxide gas and sodium hydroxide solution can be reused, saving resources and being environmentally friendly, while reducing operation and maintenance costs.
[0030] (3) The electronic product aging automatic test platform and the test method thereof are provided with a control switch 1, a control switch 2, an extrusion rod, a limit rod, a sliding rod, a spring 2, a floating plate, a guide rod, a sliding rope, a guide rail, a push rod, an iron wire, a water outlet pipe, and a water inlet pipe. When the rubber block moves upward under the gravity of the storage box, the rubber block will simultaneously drive the iron wire to move, so that the iron wire pulls the control switch 1 downward, so that the control switch 1 controls the water outlet solenoid valve to open. At this time, the liquid level in the absorption chamber begins to drop, and the floating plate drops synchronously. When the liquid level drops to the lowest, the push rod toggles the control switch 1 so that the control switch 1 is first reset to Figure 8 The position shown moves upward again. At this time, the water outlet solenoid valve is closed and the water inlet solenoid valve is opened, so that the sodium hydroxide solution that has not absorbed the carbon dioxide gas enters the absorption chamber. After the sodium hydroxide solution in the absorption chamber is saturated, it can automatically enter the replacement process. The opening and closing of the water inlet solenoid valve and the water outlet solenoid valve are controlled by mechanical parts, which makes it easier to find the fault point and save maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0032] Figure 2 This is a bottom-up structural diagram of the test platform of the present invention;
[0033] Figure 3 is a cross-sectional view of the top cover of the present invention;
[0034] Figure 4 Another perspective cross-sectional view of the top cover of the present invention;
[0035] Figure 5 For the present invention Figure 4 The enlarged view of point A in the middle;
[0036] Figure 6 It is a structural diagram of the gas delivery pump of the present invention;
[0037] Figure 7 It is a partial structural diagram of the iron wire of the present invention;
[0038] Figure 8 For the present invention Figure 7 The enlarged view of point B in the middle;
[0039] Fig. 9 It is a side sectional view of the regulating cabin of the present invention;
[0040] Fig.10 For the present invention Fig. 9Enlarged view of point C in the middle;
[0041] Fig.11 It is a partial structural diagram of the regulating assembly of the present invention;
[0042] Fig.12 It is a structural diagram of the rubber block of the present invention.
[0043] In the figure: 1. test platform; 11. electronic product body; 12. top cover; 13. rubber pad; 14. upper slider; 15. lower slider; 16. slide plate; 17. spring 1; 18. digital multimeter; 181. battery; 19. control panel; 2. gas cylinder; 21. outlet pipe; 22. hot air blower; 23. suction pipe; 24. suction pump; 25. absorption cabin; 26. circulation pipeline; 27. regulating cabin; 28. air pump; 29. air pipe; 210. blade Wheel; 3, displacement sensor; 31, rubber block; 32, fixing rope; 33, toggle plate; 34, support frame; 35, storage box; 36, heating block; 37, control switch one; 38, control switch two; 39, extrusion rod; 310, limit rod; 311, spring two; 312, sliding rod; 313, floating plate; 314, guide rod; 315, sliding rope; 316, guide rail; 317, push rod; 318, wire; 319, water outlet pipe; 320, water inlet pipe. DETAILED DESCRIPTION
[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0045] See also Figures 1 to 12 , the present invention provides the following technical solutions:
[0046] Embodiment 1: An automatic aging test platform for electronic products, comprising an electronic product body 11 to be tested and a test platform 1 for testing the electronic product, the test platform 1 is provided with a test component for performing an aging test on the electronic product body 11 and a safety component for isolating oxygen, the test component comprising: a top cover 12, a rubber pad 13, an upper slider 14, a lower slider 15, a slide plate 16, a spring 17, a digital multimeter 18, a battery 181, a control panel 19, a power supply connector and a detection connector;
[0047] The top cover 12 is movably mounted on the bracket through a bearing, one end of the bracket is fixedly mounted on the top of the test platform 1, the top cover 12 is used to cooperate with the test platform 1 to form a closed space, the electronic product body 11 is placed in the closed space, the side wall of the rubber pad 13 is fixedly mounted on the test platform 1 to improve the airtightness of the closed space, and the top of the rubber pad 13 abuts against the bottom of the top cover 12;
[0048] The side wall of the digital multimeter 18 is fixedly mounted on the side wall of the test platform 1 and connected to the electronic product body 11 through a detection connector to detect the resistance value of the electronic product body 11. A battery 181 is fixedly mounted on the bottom of the test platform 1 to provide power to the electronic product body 11 through wires and power supply connectors. A control panel 19 for controlling the test process is fixedly mounted on the side wall of the test platform 1. An upper slider 14 is fixedly mounted on the inner side wall of the top cover 12. The bottom of the upper slider 14 slides against a lower slider 15. The outer walls of the upper slider 14 and the lower slider 15 on one side close to each other are inclined. A slide plate 16 is fixedly mounted on one end of the lower slider 15. A spring 17 is fixedly mounted on the side wall of the slide plate 16. The other end of the spring 17 is fixedly mounted in the test platform 1. One end of the slide plate 16 is slidably arranged in the test platform 1. A power supply connector and two detection connectors are fixedly mounted on the slide plate 16. A carbon dioxide sensor is fixedly mounted in the top cover 12.
[0049] The safety components include: a gas storage cylinder 2, an air outlet pipe 21, a hot air blower 22, an air intake pipe 23, an air intake pump 24, an absorption cabin 25, a circulation pipeline 26, a regulating cabin 27, an air delivery pump 28, and an air delivery pipe 29;
[0050] The side wall of the gas cylinder 2 is detachably mounted on the bottom of the test platform 1 through a fixing frame for storing carbon dioxide gas. The gas outlet pipe 21 is divided into two sections. The gas outlet end of the gas cylinder 2 is fixedly connected to one end of one section of the gas outlet pipe 21. The other end of the gas outlet pipe 21 is fixedly connected to the gas outlet of the hot air blower 22. The hot air blower 22 is connected to the enclosed space through the other section of the gas outlet pipe 21 to simulate a high temperature environment.
[0051] The suction pipe 23 is divided into two sections, and the enclosed space is fixedly connected to the air inlet end of the suction pump 24 through one section of the suction pipe 23, and one end of the other section of the suction pipe 23 is fixedly connected to the air outlet end of the suction pump 24. One end of the suction pipe 23 is fixedly installed on the absorption cabin 25, and the enclosed space is connected to the absorption cabin 25 through the suction pipe 23;
[0052] The absorption cabin 25 is filled with sodium hydroxide solution, the top of the absorption cabin 25 is fixedly installed on the bottom of the test platform 1, a flow pipe 26 is fixedly installed on the side wall of the absorption cabin 25, and a regulating cabin 27 is fixedly installed at one end of the flow pipe 26, and the absorption cabin 25, the flow pipe 26, and the regulating cabin 27 are connected;
[0053] The air pipe 29 is divided into two sections. The side wall of the regulating cabin 27 is fixedly connected to one end of one of the air pipes 29. The other end of the air pipe 29 is fixedly installed at the air inlet of the air pump 28. One end of the other air pipe 29 is fixedly installed at the air outlet of the air pump 28. The other end of the air pipe 29 is fixedly installed on the top cover 12. The regulating cabin 27 is connected to the enclosed space through the air pipe 29. The air pump 28, the hot air blower 22 and the suction pump 24 are respectively fixed on the top of the test platform 1 through three outer shells.
[0054] When in use, the electronic product body 11 to be subjected to the aging test is placed on the test platform 1 and the electronic product body 11 is fixed, the top cover 12 is closed, and the top cover 12 and the test platform 1 are sealed with the help of the rubber pad 13;
[0055] When the top cover 12 is closed, the upper slider 14 is driven to move until the upper slider 14 contacts the lower slider 15, and then the top cover 12 is closed, so that the upper slider 14 pushes the lower slider 15 to move to the side where the electronic product body 11 is located, and the lower slider 15 drives the slide plate 16 to move, and the slide plate 16 drives the power plug and the detection plug to be inserted into the electronic product body 11, so that the battery 181 supplies power to the electronic product body 11 and is connected to the digital multimeter 18, and the actual resistance value of the internal resistance element of the electronic product body 11 is detected by the digital multimeter 18 when the electronic product body 11 is running;
[0056] At this time, the hot air blower 22 is controlled by the control panel 19 to start running, and the carbon dioxide gas in the gas cylinder 2 is input into the closed space formed by the top cover 12 and the test platform 1 through the hot air blower 22 through the outlet pipe 21. The airtightness of the carbon dioxide gas is greater than the density of air, which makes the carbon dioxide gas sink to the bottom of the closed space after entering the closed space;
[0057] At the same time, the suction pump 24 also starts to run, and the air in the enclosed space formed by the top cover 12 and the test platform 1 is transported to the absorption cabin 25 through the suction pipe 23 through the suction pump 24. Since the carbon dioxide gas sinks to the bottom of the enclosed space, the air in the enclosed space will move to the top of the enclosed space under the pressure of the carbon dioxide gas and be sucked away by the suction pipe 23, so that the air in the enclosed space is replaced by the carbon dioxide gas, and the electronic product body 11 undergoing the aging test is covered with the carbon dioxide gas;
[0058] The carbon dioxide concentration in the enclosed space is detected by the carbon dioxide sensor on the inner wall of the top cover 12. When the concentration of carbon dioxide gas reaches 80% or more, the control panel 19 controls the hot air blower 22 to stop delivering gas into the enclosed space, and the air suction pump 24 also stops suctioning.
[0059] The carbon dioxide gas input into the enclosed space is heated by the hot air blower 22 before being input, so that the electronic product body 11 can operate in a high temperature environment, and the performance of the electronic components in the electronic product body under extreme environment is observed to evaluate the durability and stability of the product;
[0060] When the air enters the absorption chamber 25, the carbon dioxide gas in the air is absorbed by the sodium hydroxide solution in the absorption chamber 25, and the air without carbon dioxide gas after absorption enters the conditioning chamber 27 through the circulation pipe 26;
[0061] After the test is completed, the suction pump 24 is controlled by the control panel 19 to operate, and the carbon dioxide gas in the enclosed space is sucked into the absorption cabin 25. At the same time, the air delivery pump 28 is turned on to transport the air without carbon dioxide gas in the adjustment cabin 27 to the enclosed space through the air delivery pipe 29, and the carbon dioxide gas in the enclosed space is replaced by the air without carbon dioxide gas. When the carbon dioxide gas concentration in the enclosed space drops below 5%, the suction pump 24 and the air delivery pump 28 are controlled to stop. At this time, the top cover 12 can be opened to take away the electronic product body 11 that has been tested and replace it with the next electronic product body 11 to be tested.
[0062] Embodiment 2, the technical solution of this embodiment is different from that of Embodiment 1 and includes: a group of liquid level sensors are fixedly installed in the absorption chamber 25 to detect the liquid level height in the absorption chamber 25, an impeller 210 is movably installed in the absorption chamber 25, and the impeller 210 is located below one section of the suction pipe 23, a displacement sensor 3 is fixedly installed at the bottom of the regulating chamber 27 through a mounting frame, a hole is opened at the bottom of the regulating chamber 27, a rubber block 31 is slidably abutted in the regulating chamber 27, the displacement sensor 3 is located below the hole, and the rubber block 31 is located above the hole;
[0063] A fixing rope 32 is fixedly installed on the top of the rubber block 31, and the other end of the fixing rope 32 is fixedly installed on the bottom of the toggle plate 33. The toggle plate 33 is movably installed on the support frame 34 through a bearing, and one end of the support frame 34 is fixedly installed in the regulating cabin 27. A storage box 35 is fixedly installed at one end of the toggle plate 33, and the storage box 35 is filled with sodium hydroxide solution. Four heating blocks 36 are fixedly installed in the regulating cabin 27, two heating blocks 36 form a group, and the two groups of heating blocks 36 are symmetrically distributed on both sides of the hole. A water outlet pipe 319 is fixedly installed at the bottom of the absorption cabin 25 through a water outlet solenoid valve, and a water inlet pipe 320 is fixedly installed at the bottom of the absorption cabin 25 through a water inlet solenoid valve.
[0064] When in use, when the air in the enclosed space enters the absorption chamber 25 through the air intake pipe 23, it will first impact the surface of the impeller 210 below and push the impeller 210 to rotate slowly, so that the airflow is dispersed, so that the air can be more fully in contact with the sodium hydroxide liquid, so that the carbon dioxide is absorbed more fully;
[0065] After the test platform 1 has been used for a period of time, the carbon dioxide gas may not be fully absorbed because the sodium hydroxide solution in the absorption cabin 25 absorbs a sufficient amount of carbon dioxide gas. At this time, the carbon dioxide gas will enter the regulating cabin 27 through the circulation pipe 26 and sink to the bottom of the regulating cabin 27. At this time, the carbon dioxide gas will react with the sodium hydroxide solution in the storage box 35 and produce sodium carbonate and water in the storage box 35, thereby increasing the gravity of the storage box 35. The storage box 35 will apply a downward force to the toggle plate 33, so that the toggle plate 33 turns over with the support frame 34 as the axis, so that the toggle plate 33 drives the rubber block 31 to move upward through the fixing rope 32;
[0066] The distance between the displacement sensor 3 and the rubber block 31 is detected. When the measured distance value changes, a signal is sent to the control panel 19. At this time, no matter what step is being performed, the hot air blower 22, the air suction pump 24, and the air delivery pump 28 are all stopped, and the water outlet solenoid valve connected to the water outlet pipe 319 is opened to release the saturated sodium hydroxide solution in the absorption cabin 25. This part of the sodium hydroxide solution is collected by a collection component and then heated, and the carbon dioxide gas therein is released and collected again, and then filled into the gas storage bottle 2 for use again. The sodium hydroxide solution that does not contain carbon dioxide gas after heating and release can flow into the absorption cabin 25 again through the water inlet pipe 320 for use;
[0067] The liquid level in the absorption cabin 25 is detected by a liquid level sensor. When the saturated sodium hydroxide solution in the absorption cabin 25 is completely discharged, the water outlet solenoid valve is closed and the water inlet solenoid valve is opened to allow the sodium hydroxide solution without carbon dioxide gas to enter the absorption cabin 25 through the water inlet pipe 320. When the limit liquid level is reached, the water inlet solenoid valve is closed.
[0068] During the replacement of the sodium hydroxide solution, the heating block 36 is operated to heat the saturated sodium hydroxide solution in the storage box 35, so that the carbon dioxide gas begins to be released. After the carbon dioxide gas is released, the gravity of the storage box 35 is reduced, so that the rubber block 31 returns to its original position. Fig.12 The state shown blocks the hole at the bottom of the regulating cabin 27, and the test operation can be continued at this time.
[0069] Embodiment 3, the technical solution of this embodiment is different from that of embodiment 2 and includes: a control switch 1 37 is fixedly installed on the side wall of the regulating cabin 27, a control switch 2 38 is fixedly installed on the bottom of the circulation pipe 26, a limit rod 310 is slidably installed in the absorption cabin 25, an extrusion rod 39 is fixedly installed on one end of the limit rod 310, a spring 2 311 is fixedly installed on one end of the extrusion rod 39, the other end of the spring 2 311 is fixedly installed on the side wall of the absorption cabin 25, the side wall of the extrusion rod 39 is slidably abutted on the control switch 2 38, one end of the limit rod 310 is inclined, a sliding rod 312 abuts on the side wall of the limit rod 310, and one end of the sliding rod 312 is fixedly installed on the top of the floating plate 313;
[0070] A guide rod 314 is fixedly installed on the side wall of the floating plate 313, one end of the guide rod 314 is slidably installed in the absorption chamber 25, a sliding rope 315 is fixedly installed on the top of the floating plate 313, the other end of the sliding rope 315 is fixedly installed on a push rod 317, the inner wall of the push rod 317 is slidably sleeved on the guide rail 316, the side wall of the guide rail 316 is fixedly installed in the absorption chamber 25, an iron wire 318 is fixedly installed on the control switch 37, and the other end of the iron wire 318 is fixedly installed on the bottom of the rubber block 31.
[0071] When in use, when the rubber block 31 moves upward under the gravity of the storage box 35, the rubber block 31 will synchronously drive the wire 318 to move, so that the wire 318 pulls the control switch 1 37 downward, so that the control switch 1 37 controls the water outlet solenoid valve to open, and the liquid level in the absorption cabin 25 begins to drop, the buoyancy obtained by the floating plate 313 decreases and drops synchronously, and the extrusion rod 39 is separated from the control switch 2 38 under the action of the spring 2 311, and the floating plate 313 drives the sliding rope 315 to move, and the sliding rope 315 drives the push rod 317 to move, and the push rod 317 and the guide rail 316 are slidably matched, so that the push rod 317 can move linearly along the guide rail 316 under the pull of the sliding rope 315;
[0072] When the liquid level drops to the minimum, the push rod 317 toggles the control switch 37 so that the control switch 37 is reset to Figure 8The position shown in the figure moves upward again. At this time, the water outlet solenoid valve is closed and the water inlet solenoid valve is opened, so that the sodium hydroxide solution that has not absorbed the carbon dioxide gas enters the absorption cabin 25, and the liquid level in the absorption cabin 25 rises. The floating plate 313 moves upward synchronously to the highest point. During the process, the push rod 317 will slowly descend and no longer provide an upward thrust to the control switch 37. The floating plate 313 drives the sliding rod 312 to move upward, and the sliding rod 312 squeezes the limit rod 310 to move. The limit rod 310 and the absorption cabin 25 slide together, so that the limit rod 310 moves in a straight line along the absorption cabin 25. The limit rod 310 drives the extrusion rod 39 to move, and the extrusion rod 39 squeezes the control switch 2 38 to close the water inlet solenoid valve. At this time, the control switch 1 37 is reset to Figure 8 The position shown is waiting for the next replacement of the sodium hydroxide solution in the absorption chamber.
[0073] The embodiment of the present invention also provides a testing method applicable to an electronic product aging automatic testing platform, comprising the following steps:
[0074] S1, open the top cover 12, place the electronic product body 11 to be tested on the test platform 1 and then close the top cover 12;
[0075] S2, controlling the safety component through the control panel 19 to make the electronic product body 11 in the enclosed space enter an oxygen-isolated state, and the time required for the safety component to make the electronic product body 11 in the enclosed space enter an oxygen-isolated state is between 20s and 30s;
[0076] S3, controlling the test assembly to perform an aging test on the electronic product body 11 through the control panel 19;
[0077] S4, controlling the safety component to release the oxygen isolation state through the control panel 19;
[0078] S5, taking out the tested electronic product body 11 and replacing it with the next electronic product body 11 to be tested.
[0079] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0080] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0081] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An automatic aging test platform for electronic products, comprising an electronic product body (11) to be tested and a test platform (1) for testing the electronic product, characterized in that: The test platform (1) is provided with a test component for performing an aging test on the electronic product body (11) and a safety component for isolating oxygen, wherein the safety component includes: A gas storage bottle (2) is detachably mounted on the bottom of the test platform (1) and is used to store carbon dioxide gas. A gas outlet pipe (21) is fixed to the gas outlet end of the gas storage bottle (2); A hot air blower (22) is fixed on the test platform (1) and connected to the enclosed space through an air outlet pipe (21) for simulating a high temperature environment. The enclosed space is connected to an absorption chamber (25) through an air intake pipe (23). The air intake pipe (23) is connected to an air intake pump (24). The absorption chamber (25) is filled with a sodium hydroxide solution. A circulation pipe (26) is fixed on the side wall of the absorption chamber (25). A water outlet pipe (319) is fixed to the bottom of the absorption chamber (25) through a water outlet solenoid valve. A water inlet pipe (320) is fixed to the bottom of the absorption chamber (25) through a water inlet solenoid valve. A control switch 1 (37) is fixed on the side wall of the regulating chamber (27). A control switch 2 (38) is fixed to the bottom of the circulation pipe (26). The control switch 1 (37) is used to control the opening and closing of the water outlet solenoid valve and the opening of the water inlet solenoid valve. The control switch 2 (38) is used to control the closing of the water inlet solenoid valve. The other end of the circulation pipe (26) is fixed with a regulating cabin (27), a limiting rod (310) is slidably inserted into the absorption cabin (25), one end of the limiting rod (310) is fixed with an extrusion rod (39), one end of the extrusion rod (39) is fixed with a second spring (311), the other end of the second spring (311) is fixed to the side wall of the absorption cabin (25), the side wall of the extrusion rod (39) abuts against the second control switch (38), the other end of the limiting rod (310) is inclined, the side wall of the limiting rod (310) abuts against a sliding rod (312), the other end of the sliding rod (312) is fixed with a floating plate (313), the side wall of the floating plate (313) is fixed with a guide rod (314), one end of the guide rod (314) is inserted into the side wall of the floating plate (313), and the other end of the guide rod (314) is fixed with a guide rod (314). In the absorption cabin (25), a sliding rope (315) is fixed to the top of the floating plate (313), a push rod (317) is fixed to the other end of the sliding rope (315), a guide rail (316) is provided in the sliding sleeve of the push rod (317), a side wall of the guide rail (316) is fixed in the absorption cabin (25), an iron wire (318) is fixed to the first control switch (37), the other end of the iron wire (318) is fixed to the bottom of the rubber block (31), a rubber block (31) is slidably abutted in the adjustment cabin (27), a fixing rope (32) is fixed to the top of the rubber block (31), a toggle plate (33) is fixed to the other end of the fixing rope (32), a storage box (35) is fixed to one end of the toggle plate (33), and a sodium hydroxide solution is filled in the storage box (35).
2. The electronic product aging automatic test platform according to claim 1, characterized in that: The test components include: A top cover (12) is movably mounted on the top of the test platform (1) via a bracket and is used to cooperate with the test platform (1) to form a closed space, and the electronic product body (11) is placed in the closed space; A rubber pad (13) fixed on the test platform (1) for sealing between the top cover (12) and the test platform (1); A digital multimeter (18) is fixed on the side wall of the test platform (1) and is used to detect the resistance value of the electronic product body (11); a storage battery (181) for providing power to the electronic product body (11) is fixed on the bottom of the test platform (1); and a control panel (19) for controlling the test process is fixed on the side wall of the test platform (1).
3. The electronic product aging automatic test platform according to claim 1 is characterized by: The top of the absorption cabin (25) is fixed to the bottom of the test platform (1), and the side wall of the adjustment cabin (27) is connected to the enclosed space via an air pipe (29). The air pipe (29) is connected to an air pump (28). The air pump (28), the hot air blower (22), and the suction pump (24) are respectively fixed to the top of the test platform (1) via three outer shells.
4. The electronic product aging automatic test platform according to claim 2, characterized in that: An upper slider (14) is fixed on the top cover (12), the bottom of the upper slider (14) is in contact with a lower slider (15), one end of the lower slider (15) is fixed with a slide plate (16), a side wall of the slide plate (16) is fixed with a spring 1 (17), the other end of the spring 1 (17) is fixed in the test platform (1), one end of the slide plate (16) is inserted into the test platform (1), a power supply connector and a detection connector are fixed on the slide plate (16), and a carbon dioxide sensor is fixed in the top cover (12).
5. The electronic product aging automatic test platform according to claim 1 is characterized by: A liquid level sensor is fixed in the absorption chamber (25), an impeller (210) is movably installed in the absorption chamber (25), a displacement sensor (3) is fixed to the bottom of the regulating chamber (27) via a mounting frame, a hole is opened at the bottom of the regulating chamber (27), the displacement sensor (3) is located below the hole, the rubber block (31) is located above the hole, the toggle plate (33) is installed in the regulating chamber (27) via a support frame (34), and a heating block (36) is fixed in the regulating chamber (27).
6. A test method for an electronic product aging automatic test platform according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1, opening the top cover (12), placing the electronic product body (11) to be tested on the test platform (1), and then closing the top cover (12); S2, controlling the safety component through the control panel (19) to make the electronic product body (11) in the confined space enter an oxygen-isolated state; S3, controlling the test component to perform an aging test on the electronic product body (11) through the control panel (19); S4, controlling the safety component to release the oxygen isolation state through the control panel (19); S5, taking out the tested electronic product body (11) and replacing it with the next electronic product body (11) to be tested.
7. The testing method according to claim 6, characterized in that: The time required for the safety component to make the electronic product body (11) in the enclosed space enter an oxygen-isolated state is between 20 seconds and 30 seconds.
Citation Information
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