Environmental temperature stress circulation equipment

Abstract

The utility model belongs to the field of electronic component detection, and provides environment temperature stress circulation equipment, which comprises a box body, a conveying module and a control module, and is characterized in that the interior of the box body is divided into a normal-temperature area, a low-temperature area, a water vapor area and a high-temperature area which are independent from one another; the conveying module is arranged in the box body, penetrates through the normal-temperature area, the low-temperature area, the water vapor area and the high-temperature area and is used for conveying a to-be-detected piece; the control module is electrically connected with the conveying module and controls the conveying module to transfer the to-be-detected piece among the normal temperature area, the low temperature area, the water vapor area and the high temperature area. According to the utility model, the detection efficiency of the to-be-detected member is improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic component testing, and in particular to an environmental temperature stress cycle device. Background Technology

[0002] With the rapid iteration of electronic product components, the quality requirements for these components are becoming increasingly stringent. Environmental temperature testing is particularly important in component reliability testing, playing a crucial role in component performance observation, design optimization, and lifespan assessment. Specific methods include high and low temperature testing, high and low temperature operation, temperature cycling, damp heat testing, and water mist testing. Environmental temperature testing is a highly efficient environmental stress screening method. By measuring the component's ability to withstand extreme temperatures, it aims to improve component reliability by screening for defective products early, effectively preventing batch defects, rework, and scrap, and improving overall production quality and process design.

[0003] Currently, environmental simulation tests are generally conducted using high and low temperature test chambers, temperature shock test chambers, and steam test benches. When it is necessary to combine high and low temperature testing with water vapor testing to accelerate device aging, both high and low temperature test chambers and steam test benches must be used simultaneously. During the test, the equipment is changed to complete the high and low temperature and steam tests. This approach cannot fully simulate the actual application scenarios of components, resulting in inaccurate test results and making the testing process cumbersome and inconvenient for operators.

[0004] Therefore, a new solution is needed to address the aforementioned technical problems. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an environmental temperature stress cycle device to solve the problem of low detection efficiency of existing equipment for components.

[0006] To achieve the above and other related objectives, this utility model provides an environmental temperature stress cycling device, specifically configured as follows: it includes a housing, a conveying module, and a control module. The housing is internally divided into independent ambient temperature zone, low temperature zone, moisture zone, and high temperature zone. The conveying module is disposed inside the housing and passes through the ambient temperature zone, low temperature zone, moisture zone, and high temperature zone for conveying the part to be tested. The control module is electrically connected to the conveying module and controls the conveying module to transfer the part to be tested between the ambient temperature zone, low temperature zone, moisture zone, and high temperature zone.

[0007] The enclosure is divided into separate normal temperature zone, low temperature zone, water vapor zone and high temperature zone;

[0008] The test box, located inside the housing, is used to hold the item to be tested;

[0009] A conveying module is installed inside the housing and passes through the ambient temperature zone, low temperature zone, moisture zone and high temperature zone to carry the test box;

[0010] The control module, electrically connected to the conveying module, controls the conveying module to transfer the test box between the normal temperature zone, low temperature zone, water vapor zone, and high temperature zone.

[0011] Optionally, the ambient temperature stress cycling device further includes a test box for loading the test piece, the test box being provided with a first interface and a second interface for electrical connection, the first interface being used to connect the test piece, and the second interface being used to connect the test circuit; the outer wall of the box has a first clearance hole corresponding to the second interface, and the test circuit is connected to the second interface through the first clearance hole.

[0012] Optionally, the low-temperature zone, the water vapor zone, and the high-temperature zone are all provided with the first clearance hole.

[0013] Optionally, the conveying module includes a first conveying line, a second conveying line, and a conveying mechanism. The first conveying line passes through the high-temperature zone, the normal-temperature zone, and the low-temperature zone. The second conveying line passes through the low-temperature zone, the moisture zone, and the high-temperature zone. The conveying mechanism is installed inside both the low-temperature zone and the high-temperature zone.

[0014] The first conveyor line is used to transport the test box from the room temperature zone to the low temperature zone, or from the room temperature zone to the high temperature zone;

[0015] The second conveyor line is used to receive the test box from the low-temperature zone and transport the test box through the water vapor zone to the high-temperature zone; or to receive the test box from the high-temperature zone and transport the test box through the water vapor zone to the low-temperature zone;

[0016] The conveying mechanism located in the low-temperature zone is used to receive the test box from the first conveyor line and transfer the test box to the second conveyor line; or to receive the test box from the second conveyor line and transfer the test box to the first conveyor line.

[0017] The conveying mechanism located in the high-temperature zone is used to receive the test box of the second conveyor line and transfer the test box to the first conveyor line; or to receive the test box of the first conveyor line and transfer the test box to the second conveyor line.

[0018] Optionally, the conveying module further includes a third conveying line for connecting the conveying mechanism to the first conveying line or the second conveying line, and a limiting member, the limiting member being disposed at the tail end of the third conveying line, the third conveying line having an inclined angle to convey the test box received from the first conveying line or the second conveying line to the limiting member, or to convey the test box received from the conveying mechanism to the first conveying line or the second conveying line.

[0019] Optionally, the conveying mechanism includes a fourth conveying line, a connector connected to the conveying end of the fourth conveying line, and a first adsorption member connected to the connector. The bottom of the test box is provided with a groove and a second adsorption member that cooperates with the first adsorption member. The third conveying line is composed of multiple rollers arranged at intervals. When the test box moves to the limiting member, the fourth conveying line drives the connector to pass through the gap of the rollers and cooperate with the groove. The first adsorption member and the second adsorption member are adsorbed together to fix the test box on the connector. The fourth conveying line drives the connector and the test box to move synchronously.

[0020] Optionally, a sensor door electrically connected to the control module is provided at the junction of the ambient temperature zone and the high temperature zone and the low temperature zone, as well as at the junction of the water vapor zone and the high temperature zone and the low temperature zone. The passage size of the sensor door matches the outer dimensions of the test box. When the sensor door senses the test box, the control module controls the sensor door to open, and the test box passes through the sensor door under the transport of the transport module.

[0021] Optionally, the first opposite sides of the enclosure are respectively provided with a high temperature zone and a low temperature zone, and the second opposite sides of the enclosure are respectively provided with a normal temperature zone and a water vapor zone, and the normal temperature zone and the water vapor zone are located between the high temperature zone and the low temperature zone.

[0022] Optionally, the ambient temperature zone is provided with a placement window, through which the test piece is placed into the ambient temperature zone; the low temperature zone, the water vapor zone, and the high temperature zone are all provided with observation windows to observe the internal state, and the observation windows are in a closed state.

[0023] Optionally, the ambient temperature stress cycling device further includes a first temperature control module, a second temperature control module, and a water vapor conversion module electrically connected to the control module. The control module controls the first temperature control module to maintain the low-temperature zone in a low-temperature environment, controls the second temperature control module to maintain the high-temperature zone in a high-temperature environment, and controls the water vapor conversion module to maintain the water vapor environment in the water vapor zone; and / or, the control module includes a control panel through which execution commands are input.

[0024] As described above, the environmental temperature stress cycling device of this utility model has the following beneficial effects:

[0025] By dividing the interior of the chamber into independent zones—room temperature, low temperature, moisture zone, and high temperature zone—each zone is set up independently and does not affect the others. Compared to achieving different environments by changing the environment of the same zone, this avoids the time required for environmental transitions, which is beneficial for improving the testing efficiency of the test specimens. Furthermore, the addition of the moisture zone helps to closely match the usage environment of the test specimens, thus improving the accuracy of the test results. The control module controls the transport module to move the test specimens between the room temperature, low temperature, moisture zone, and high temperature zone, facilitating precise control of the time the test specimens spend in each zone, which is beneficial for improving the accuracy of the final test results. Attached Figure Description

[0026] Figure 1 The diagram shown is a structural schematic of the environmental temperature stress cycling device according to an embodiment of the present invention.

[0027] Figure 2 The diagram shows a partial structural schematic of the environmental temperature stress cycling device according to an embodiment of the present invention.

[0028] Figure 3 The diagram shown is a structural schematic of the test box according to an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures

[0030] 1-Enclosure; 11-Ambient temperature zone; 12-Low temperature zone; 13-Moisture zone; 14-High temperature zone; 15-Placement window; 16-Observation window; 17-First clearance hole;

[0031] 2-Control module; 21-First temperature control module; 22-Second temperature control module; 23-Water vapor conversion module; 24-Control panel;

[0032] 3-Test box; 31-First interface; 32-Second interface; 33-Groove; 34-Second adsorption element;

[0033] 4-First conveyor line;

[0034] 5-Second conveyor line;

[0035] 6-Conveying mechanism; 61-Fourth conveyor line; 62-Connector; 621-Reinforcing rib; 63-First adsorption element;

[0036] 7-Third conveyor line; 71-Limiting component;

[0037] 8-Automatic door. Detailed Implementation

[0038] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0039] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the illustrations only show components relevant to this utility model and are not drawn according to the actual number, shape, and size of the components in implementation. In actual implementation, the shape, quantity, and proportion of each component can be arbitrarily changed, and the component layout may be more complex. The structures, proportions, and sizes shown in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Meanwhile, terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0040] Please see Figure 1 This utility model provides an environmental temperature stress cycling device, including a housing 1, a conveying module and a control module 2.

[0041] The interior of chamber 1 is divided into four independent zones: a normal temperature zone 11, a low temperature zone 12, a moisture zone 13, and a high temperature zone 14. Each zone has its own independent space. Compared to conducting tests under different conditions by changing the environment of the same zone, this avoids the time required for environmental transitions and improves the testing efficiency of the test specimens. Furthermore, the addition of the moisture zone 13, compared to existing testing environments, helps to closely resemble the operating environment of the test specimens, thus improving the accuracy of the test results.

[0042] The conveying module is installed inside the housing 1 and is used to transport the test piece. The conveying module passes through the ambient temperature zone 11, the low temperature zone 12, the moisture zone 13, and the high temperature zone 14. When the test piece needs to be tested, the control module 2 controls the conveying module to transfer the test piece between the ambient temperature zone 11, the low temperature zone 12, the moisture zone 13, and the high temperature zone 14, so as to accurately control the time the test piece stays in each zone, which helps to improve the accuracy of the final test results.

[0043] In some embodiments, the control module 2 is also electrically connected to a first temperature control module 21, a second temperature control module 22, and a water vapor conversion module 23. The control module 2 controls the first temperature control module 21 to maintain the low-temperature zone 12 in a low-temperature environment, which can be set to -55°C to -75°C; controls the second temperature control module 22 to maintain the high-temperature zone 14 in a high-temperature environment, which can be set to 85°C to 215°C; and controls the water vapor conversion module 23 to maintain the water vapor environment of the water vapor zone 13, the humidity of which can be set to 80% to 100%. This ensures that the environment in each zone is kept in a relatively stable state, which is beneficial to improving the efficiency of the experiment and ensuring the accuracy of the experimental results.

[0044] In one application example, the first temperature control module 21 is installed in the low-temperature zone 12, the second temperature control module 22 is installed in the high-temperature zone 14, and the water vapor module is installed in the middle of the housing 1. Specifically, the water vapor module includes a water tank, a water vapor converter, and a dryer. The water vapor output port of the water vapor converter is inserted into the water vapor zone 13 to provide water vapor to the water vapor zone 13.

[0045] In some embodiments, the control module 2 includes a control panel 24 through which the operator inputs execution commands, such as the time the test piece stays in each area, the conveying speed of the conveying module, the number of times the test piece is cyclically tested in the housing 1, and the temperatures of the high-temperature zone 14 and the low-temperature zone 12.

[0046] In some embodiments, a high-temperature zone 14 and a low-temperature zone 12 are respectively provided on the first opposite sides of the housing 1, and a normal-temperature zone 11 and a water vapor zone 13 are respectively provided on the second opposite sides of the housing 1. The normal-temperature zone 11 and the water vapor zone 13 are located between the high-temperature zone 14 and the low-temperature zone 12, so as to separate the high-temperature zone 14 and the low-temperature zone 12. This helps to avoid interference between the high-temperature zone 14 and the low-temperature zone 12 and helps to reduce energy consumption.

[0047] In one example, the high-temperature zone 14 is located on the left side of the chamber 1, the low-temperature zone 12 is located on the right side of the chamber 1, the normal-temperature zone 11 is located at the top of the chamber 1, and the moisture zone 13 is located at the bottom of the chamber 1. In another example, the high-temperature zone 14 is located on the left side of the chamber 1, the low-temperature zone 12 is located on the right side of the chamber 1, the normal-temperature zone 11 is located at the bottom of the chamber 1, and the moisture zone 13 is located at the top of the chamber 1.

[0048] In another example, the high-temperature zone 14 is located on the right side of the chamber 1, the low-temperature zone 12 is located on the left side of the chamber 1, the normal-temperature zone 11 is located at the top of the chamber 1, and the moisture zone 13 is located at the bottom of the chamber 1.

[0049] In another example, the high-temperature zone 14 is located at the top of the chamber 1, the low-temperature zone 12 is located at the bottom of the chamber 1, the normal-temperature zone 11 is located on the left side of the chamber 1, and the moisture zone 13 is located on the right side of the chamber 1.

[0050] In another example, the high-temperature zone 14 is located at the bottom of the chamber 1, the low-temperature zone 12 is located at the top of the chamber 1, the normal-temperature zone 11 is located on the left side of the chamber 1, and the moisture zone 13 is located on the right side of the chamber 1.

[0051] In some embodiments, the ambient temperature zone 11 is provided with a placement window 15, which may be open or have a door that can be opened. The test piece is placed into the ambient temperature zone 11 through the placement window 15.

[0052] The low-temperature zone 12, the water vapor zone 13, and the high-temperature zone 14 are all equipped with observation windows 16. These windows allow for observation of the internal conditions of the zone, enabling timely handling of any abnormalities. The observation windows 16 are kept closed to avoid affecting the environmental conditions of the zone.

[0053] In some embodiments, the test piece is loaded into the test box 3 for transfer within the housing 1 via a transport module. This simplifies the structure of the transport module, and the test box 3 protects the test piece during transport. The test box 3 is provided with a first interface 31 and a second interface 32 for electrical connection. The first interface 31 is used to connect the test piece, and the second interface 32 is used to connect the test circuit. It should be noted that the first interface 31 is located inside the chamber of the test box 3 where the test piece is loaded, and it connects to the first interface 31 when the test piece is loaded into the chamber. The second interface 32 is located on the outer wall of the test box 3.

[0054] The outer wall of the housing 1 is provided with a first clearance hole 17 corresponding to the second interface 32. When the test box 3 moves to the position where the second interface 32 corresponds to the first clearance hole 17, the test circuit is connected to the second interface 32 through the first clearance hole 17 so that the test piece can be tested for electrical performance at the same time inside the housing.

[0055] In one application example, the first clearance hole 17 is provided in the low-temperature zone 12, the moisture zone 13, and the high-temperature zone 14 to enable the device under test to undergo electrical performance testing under the environmental stress of the low-temperature zone 12, the moisture zone 13, and the high-temperature zone 14.

[0056] In one application example, the distance the conveying module moves can be controlled by the control module 2 to achieve the correspondence between the second interface 32 of the test box 3 and the first clearance hole 17 of the housing 1. Alternatively, a sensor can be installed at the first clearance hole 17. When the sensor detects the test box 3, the control module 2 controls the conveying module to stop conveying, so that the second interface 32 of the test box 3 corresponds to the first clearance hole 17 of the housing 1.

[0057] In some embodiments, the conveying module includes a first conveying line 4, a second conveying line 5, and a conveying mechanism 6. The first conveying line 4 passes through a high-temperature zone 14, a normal-temperature zone 11, and a low-temperature zone 12, enabling it to transfer the test piece between these zones. The second conveying line 5 passes through a low-temperature zone 12, a moisture zone 13, and a high-temperature zone 14, also enabling it to transfer the test piece between these zones. Conveying mechanisms 6 are installed inside both the low-temperature zone 12 and the high-temperature zone 14. The conveying mechanism 6 receives the test box 3 from either the first conveying line 4 or the second conveying line 5 and moves the test box 3 within either zone. The conveying mechanism 6 located in the low-temperature zone 12 moves the test piece near the normal-temperature zone 11 to a position near the moisture zone 13, or vice versa. The conveying mechanism 6 located in the high temperature zone 14 moves the test piece near the normal temperature zone 11 to a position near the water vapor zone 13, or moves the test piece near the water vapor zone 13 to a position near the normal temperature zone 11.

[0058] At this time, the high-temperature zone 14 is located on the left or right side of the chamber 1, and the low-temperature zone 12 is located on the right or left side of the chamber 1, with the high-temperature zone 14 and the low-temperature zone 12 being positioned opposite each other. The normal temperature zone 11 is located at the upper or lower part of the chamber 1, and the water vapor zone 13 is located at the lower or lower part of the chamber 1, with the normal temperature zone 11 and the water vapor zone 13 being positioned opposite each other.

[0059] In one example, the first conveyor line 4 transports the test box 3 from the ambient temperature zone 11 to the low temperature zone 12. The conveyor mechanism 6 in the low temperature zone 12 receives the test box 3 from the first conveyor line 4 and transfers it to the second conveyor line 5. The second conveyor line 5 receives the test box 3 from the low temperature zone 12 and transports it through the moisture zone 13 to the high temperature zone 14. The conveyor mechanism 6 in the high temperature zone 14 receives the test box 3 from the second conveyor line 5 and transfers it back to the first conveyor line 4. Subsequently, the first conveyor line 4 transports the test box 3 from the ambient temperature zone 11 back to the low temperature zone 12, and so on, completing the environmental temperature stress test of the test piece in four temperature zones: ambient temperature zone 11, low temperature zone 12, moisture zone 13, high temperature zone 14, and ambient temperature zone 11.

[0060] In another example, the first conveyor line 4 transports the test box 3 from the ambient temperature zone 11 to the high temperature zone 14. The conveyor mechanism 6 in the high temperature zone 14 receives the test box 3 from the first conveyor line 4 and transfers it to the second conveyor line 5. The second conveyor line 5 receives the test box 3 from the high temperature zone 14 and transports it through the moisture zone 13 to the low temperature zone 12. The conveyor mechanism 6 in the low temperature zone 12 receives the test box 3 from the second conveyor line 5 and transfers it back to the first conveyor line 4. Subsequently, the first conveyor line 4 transports the test box 3 from the ambient temperature zone 11 back to the high temperature zone 14, and so on, completing the environmental temperature stress test of the test piece in four temperature spaces: ambient temperature zone 11, high temperature zone 14, moisture zone 13, low temperature zone 12, and ambient temperature zone 11.

[0061] In some other embodiments, a first conveyor line 4 passes through the moisture zone 13, the high-temperature zone 14, and the normal-temperature zone 11, enabling the first conveyor line 4 to transfer the test piece between the moisture zone 13, the high-temperature zone 14, and the normal-temperature zone 11. A second conveyor line 5 passes through the moisture zone 13, the low-temperature zone 12, and the normal-temperature zone 11, enabling the second conveyor line 5 to transfer the test piece between the moisture zone 13, the low-temperature zone 12, and the normal-temperature zone 11. A conveying mechanism 6 is provided inside both the moisture zone 13 and the normal-temperature zone 11. The conveying mechanism 6 receives the test box 3 from the first conveyor line 4 or the second conveyor line 5 and moves the test box 3 within the moisture zone 13 or the normal-temperature zone 11. The conveying mechanism 6 located in the moisture zone 13 moves the test piece near the high-temperature zone 14 to a position near the low-temperature zone 12, or vice versa. The conveying mechanism 6 located in the ambient temperature zone 11 moves the test piece near the low temperature zone 12 to a position near the high temperature zone 14, or moves the test piece near the high temperature zone 14 to a position near the low temperature zone 12.

[0062] At this time, the high-temperature zone 14 is located at the upper or lower part of the chamber 1, and the low-temperature zone 12 is located at the lower or lower part of the chamber 1, with the high-temperature zone 14 and the low-temperature zone 12 being positioned opposite each other. The water vapor zone 13 is located on the left or right side of the chamber 1, and the normal temperature zone 11 is located on the right or left side of the chamber 1, with the water vapor zone 13 and the normal temperature zone 11 being positioned opposite each other.

[0063] For example, the first conveyor line 4 and the second conveyor line 5 may include, but are not limited to, belt conveyors.

[0064] In some embodiments, the conveying module further includes a third conveyor line 7 and a limiting member 71. The third conveyor line 7 connects the first conveyor line 4 and the conveying mechanism 6 to transfer test boxes 3 between the first conveyor line 4 and the conveying mechanism 6, or connects the second conveyor line 5 and the conveying mechanism 6 to transfer test boxes 3 between the second conveyor line 5 and the conveying mechanism 6. The limiting member 71 is installed at the tail end of the third conveyor line 7, and the third conveyor line 7 has an inclined angle to convey test boxes 3 received from the first conveyor line 4 or the second conveyor line 5 to the limiting member 71, facilitating the conveying mechanism 6 to receive test boxes 3 from the first conveyor line 4 or the second conveyor line 5; or to convey test boxes 3 received from the conveying mechanism 6 to the first conveyor line 4 or the second conveyor line 5, completing the transfer of test boxes 3 between the first conveyor line 4, the second conveyor line 5, and the conveying mechanism 6.

[0065] In one example, when the test box 3 moves from the first conveyor line 4 or the second conveyor line 5 to the conveying mechanism 6, a limiting member 71 is installed at the end of the third conveyor line 7 to position the test box 3 so that the conveying mechanism 6 can receive the test box 3. When the test box 3 moves from the conveying mechanism 6 to the first conveyor line 4 or the second conveyor line 5, the limiting member 71 does not need to be installed at the end of the third conveyor line 7.

[0066] Furthermore, the first end of the third conveyor line 7 is higher than the last end, so that the test box 3 can move from the first end to the last end of the third conveyor line 7.

[0067] In some embodiments, the transfer mechanism includes a third conveyor line 7 and a limiting member 71. The third conveyor line 7 is composed of a plurality of spaced rollers. The third conveyor line 7 has an inclined angle so that it receives the test box 3 received from the first conveyor line 4 and the second conveyor line 5 and transports it to the limiting member 71.

[0068] In some embodiments, the conveying mechanism 6 includes a fourth conveying line 61 and a connector 62, wherein the connector 62 is mounted on the conveying end of the fourth conveying line 61 so that the fourth conveying line 61 can drive the connector 62 to move. The bottom of the test box 3 is provided with a groove 33, and the third conveying line 7 is composed of a plurality of rollers arranged at intervals. When the test box 3 moves to the limiting member 71, the fourth conveying line 61 drives the connector 62 to pass through the gap of the rollers and cooperate with the groove 33 of the test box 3, so that the test box 3 is connected to the connector 62, so that the fourth conveying line 61 drives the connector 62 and the test box 3 to move synchronously.

[0069] For example, the fourth conveyor line 61 may include, but is not limited to, a belt conveyor or the like.

[0070] In some embodiments, a first adsorption member 63 is also installed on the connector 62, and a second adsorption member 34 is also installed on the bottom of the test box 3. When the connector 62 is engaged with the groove 33 of the test box 3, the first adsorption member 63 and the second adsorption member 34 are adsorbed together so that the test box 3 is completely fixed on the connector 62.

[0071] In one example, connector 62 has two or more ribs 621, and the bottom of test box 3 has a number of grooves 33 corresponding to the number of ribs 621. One rib 621 is inserted into each groove 33 to connect connector 62 to test box 3. First adsorption member 63 is installed between two adjacent ribs 621 and located in the middle of connector 62. First adsorption member 63 can be an iron block, and second adsorption member 34 can be an electromagnet. When the electromagnet is energized, it has magnetism and can attract the iron block to fix test box 3 to connector 62.

[0072] It should be noted that when the test piece is subjected to electrical performance testing in the low-temperature zone 12, the moisture zone 13, and the high-temperature zone 14, the test box 3 located in the low-temperature zone 12 and the high-temperature zone 14 is fixed by the connector 62 and the first adsorption component 63. The test box 3 located in the moisture zone 13 can also be fixed by the connector 62 and the first adsorption component 63. The connector 62 located in the moisture zone 13 is retractably mounted on the inner wall of the housing 1. When it is necessary to fix the test box 3, the connector 62 extends out.

[0073] In some embodiments, a sensor door 8 is provided at the junction of the normal temperature zone 11 with the high temperature zone 14 and the low temperature zone 12, and at the junction of the water vapor zone 13 with the high temperature zone 14 and the low temperature zone 12. The sensor door 8 is electrically connected to the control module 2 so that the control module 2 can control the opening and closing of the sensor door 8. In the initial state, each sensor door 8 is in the closed state, so that each area is in a closed state, which helps to reduce the energy consumption for maintaining the environment of each area.

[0074] When the sensor door 8 detects the test box 3, the control module 2 controls the sensor door 8 to open, and the test box 3, conveyed by the conveying module, passes through the sensor door 8 to enter the next area. It should be noted that the passage size of the sensor door 8 after opening matches the external dimensions of the test box 3, in order to reduce the environmental impact of the test box 3 on the area it is about to enter when passing through the sensor door 8, which helps to reduce energy consumption.

[0075] In summary, the environmental temperature stress cycling device provided by this utility model divides the interior of the chamber into independently existing ambient temperature zone, low temperature zone, water vapor zone, and high temperature zone. Each zone is set independently and does not affect the others. Compared with achieving different environments by changing the environment of the same zone, this avoids the time required for environmental transitions, which is beneficial to improving the testing efficiency of the test specimen. Furthermore, the addition of the water vapor zone helps to closely match the usage environment of the test specimen, which is beneficial to improving the accuracy of the test results. The control module controls the conveying module to transfer the test specimen between the ambient temperature zone, low temperature zone, water vapor zone, and high temperature zone, which facilitates precise control of the residence time of the test specimen in each zone, which is beneficial to improving the accuracy of the final test results.

[0076] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An environmental temperature stress cycling device, characterized in that, include: The enclosure is divided into separate normal temperature zone, low temperature zone, water vapor zone and high temperature zone; A conveying module is installed inside the housing and passes through the ambient temperature zone, low temperature zone, moisture zone, and high temperature zone, and is used to convey the items to be tested; The control module is electrically connected to the conveying module and controls the conveying module to transfer the test piece between the normal temperature zone, the low temperature zone, the water vapor zone and the high temperature zone.

2. The environmental temperature stress cycling device according to claim 1, characterized in that: The ambient temperature stress cycling device also includes a test box for loading the test piece, and the test box is provided with a first interface and a second interface for electrical connection. The first interface is used to connect the test piece, and the second interface is used to connect the test circuit. The outer wall of the enclosure has a first clearance hole corresponding to the second interface, and the test circuit is connected to the second interface through the first clearance hole.

3. The environmental temperature stress cycling device according to claim 2, characterized in that: The low-temperature zone, the water vapor zone, and the high-temperature zone are all provided with the first clearance hole.

4. The environmental temperature stress cycling device according to claim 2, characterized in that: The conveying module includes a first conveyor line, a second conveyor line, and a conveying mechanism. The first conveyor line passes through the high-temperature zone, the normal-temperature zone, and the low-temperature zone. The second conveyor line passes through the low-temperature zone, the moisture zone, and the high-temperature zone. The conveying mechanism is installed inside both the low-temperature zone and the high-temperature zone. The first conveyor line is used to transport the test box from the room temperature zone to the low temperature zone, or from the room temperature zone to the high temperature zone; The second conveyor line is used to receive the test box from the low-temperature zone and transport the test box through the water vapor zone to the high-temperature zone; or to receive the test box from the high-temperature zone and transport the test box through the water vapor zone to the low-temperature zone; The conveying mechanism located in the low-temperature zone is used to receive the test box from the first conveyor line and transfer the test box to the second conveyor line; or to receive the test box from the second conveyor line and transfer the test box to the first conveyor line. The conveying mechanism located in the high-temperature zone is used to receive the test box of the second conveyor line and transfer the test box to the first conveyor line; or to receive the test box of the first conveyor line and transfer the test box to the second conveyor line.

5. The ambient temperature stress cycling device according to claim 4, characterized in that: The conveying module further includes a third conveying line for connecting the conveying mechanism to the first conveying line or the second conveying line, and a limiting member. The limiting member is disposed at the tail end of the third conveying line. The third conveying line has an inclination angle to convey the test box received from the first conveying line or the second conveying line to the limiting member, or to convey the test box received from the conveying mechanism to the first conveying line or the second conveying line.

6. The ambient temperature stress cycling device according to claim 5, characterized in that: The conveying mechanism includes a fourth conveying line, a connector connected to the conveying end of the fourth conveying line, and a first adsorption member connected to the connector. The bottom of the test box is provided with a groove and a second adsorption member that cooperates with the first adsorption member. The third conveying line is composed of multiple rollers arranged at intervals. When the test box moves to the limiting member, the fourth conveying line drives the connector to pass through the gap of the rollers and cooperate with the groove. The first adsorption member and the second adsorption member are adsorbed together to fix the test box on the connector. The fourth conveying line drives the connector and the test box to move synchronously.

7. The ambient temperature stress cycling device according to claim 4, characterized in that: At the junctions of the ambient temperature zone and the high temperature zone and the low temperature zone, as well as at the junctions of the water vapor zone and the high temperature zone and the low temperature zone, there are induction doors electrically connected to the control module. The passage size of the induction door matches the outer dimensions of the test box. When the induction door senses the test box, the control module controls the induction door to open, and the test box passes through the induction door under the transport of the transport module.

8. The environmental temperature stress cycling device according to any one of claims 1-7, characterized in that: The first opposite sides of the enclosure are respectively provided with a high temperature zone and a low temperature zone, and the second opposite sides of the enclosure are respectively provided with a normal temperature zone and a water vapor zone, and the normal temperature zone and the water vapor zone are located between the high temperature zone and the low temperature zone.

9. The ambient temperature stress cycling device according to claim 8, characterized in that: The ambient temperature zone is provided with a placement window, through which the test piece is placed into the ambient temperature zone; the low temperature zone, the water vapor zone, and the high temperature zone are all provided with observation windows to observe the internal state, and the observation windows are in a closed state.

10. The ambient temperature stress cycling device according to claim 9, characterized in that: The ambient temperature stress cycling device further includes a first temperature control module, a second temperature control module, and a water vapor conversion module electrically connected to the control module. The control module controls the first temperature control module to maintain the low-temperature zone in a low-temperature environment, controls the second temperature control module to maintain the high-temperature zone in a high-temperature environment, and controls the water vapor conversion module to maintain the water vapor environment in the water vapor zone; and / or, the control module includes a control panel through which execution commands are input.

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