Environmental temperature stress cycle equipment and environmental temperature stress cycle test method

Abstract

The invention belongs to the field of electronic component detection, and provides environment temperature stress cycle equipment and an environment temperature stress cycle test method. The environment temperature stress circulation equipment comprises a box body, a conveying module and a control module, wherein 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 invention, the detection efficiency of the to-be-detected piece is improved.

Description

Technical Field

[0001] The invention relates to the field of electronic component detection, and in particular to an environmental temperature stress cycle device and an environmental temperature stress cycle test method. Background Art

[0002] With the rapid iteration of electronic product components, the quality requirements for the components that make up electronic products are becoming more stringent. Environmental temperature testing is particularly important in the reliability testing of components, and it plays an important role in observing component performance, design optimization, and life evaluation. Specific methods include high and low temperature testing, high and low temperature operation, temperature cycling, damp heat, and water mist testing. Environmental temperature testing is an efficient environmental stress screening method. By measuring the ability of components to withstand extreme temperatures, defective products are screened early with the goal of improving component reliability, effectively preventing batch out-of-tolerance, rework, and scrapping of chips, and improving overall production quality and process design.

[0003] At present, environmental simulation tests are generally carried out using high and low temperature test chambers, temperature shock test chambers, steam test benches, etc. When it is necessary to combine high and low temperature detection and water vapor test to accelerate device aging, it is necessary to apply high and low temperature test chambers and steam test benches at the same time, and complete high and low temperature and steam tests by replacing equipment during the test. Such operations cannot completely simulate the application scenarios of components in actual use, making the test results not very accurate, and also making the test process cumbersome, which brings inconvenience to operators.

[0004] Therefore, a new solution is needed to solve the above technical problems. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an ambient temperature stress cycle device and an ambient temperature stress cycle test method, so as to solve the problem of low detection efficiency of components by the prior art devices.

[0006] To achieve the above-mentioned purpose and other related purposes, the present invention provides an environmental temperature stress cycle device, which is specifically configured as follows: it includes a box body, a conveying module and a control module, the interior of the box body is divided into independent normal temperature zone, low temperature zone, water vapor zone and high temperature zone; the conveying module is arranged inside the box body and penetrates the normal temperature zone, low temperature zone, water vapor zone and high temperature zone, and is used to convey the parts to be detected; the control module is electrically connected to the conveying module, and controls the conveying module to transfer the parts to be detected between the normal temperature zone, low temperature zone, water vapor zone and high temperature zone.

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

[0008] A test box, located inside the box, for placing the test piece;

[0009] A conveying module, arranged inside the box and passing through the normal temperature zone, the low temperature zone, the water vapor zone and the high temperature zone, for carrying the test box;

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

[0011] Optionally, the environmental temperature stress cycle equipment also includes a test box for loading the test piece, the test box is provided with a first electrically connected interface and a second interface, 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 box body has a first clearance hole arranged corresponding to the second interface, the test circuit is connected to the second interface through the first clearance hole, and the low temperature zone, the water vapor zone and the high temperature zone are all provided with the first clearance hole.

[0012] Optionally, the conveying module includes a first conveying line, a second conveying line and a conveying mechanism, the first conveying line runs through the high temperature zone, the normal temperature zone and the low temperature zone, the second conveying line runs through the low temperature zone, the water vapor zone and the high temperature zone, and the conveying mechanism is disposed inside the low temperature zone and the high temperature zone.

[0013] The first conveying line is used to convey the test box from the normal temperature zone to the low temperature zone, or to convey the test box from the normal temperature zone to the high temperature zone;

[0014] The second conveying line is used to receive the test box from the low temperature zone and convey the test box to the high temperature zone through the water vapor zone; or receive the test box from the high temperature zone and convey the test box to the low temperature zone through the water vapor zone;

[0015] The conveying mechanism located in the low temperature zone is used to receive the test box from the first conveying line and transfer the test box to the second conveying line; or receive the test box on the second conveying line and transfer the test box to the first conveying line;

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

[0017] Optionally, the conveying module also includes a third conveying line for connecting the conveying mechanism with the first conveying line or the second conveying line, and a limit member, wherein the limit member is arranged at the tail end of the third conveying line, and the third conveying line has an inclination angle so as to convey the test box received from the first conveying line or the second conveying line to the limit member, or to convey the test box received from the conveying mechanism to the first conveying line or the second conveying line.

[0018] 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 cooperating with the first adsorption member, the third conveying line is composed of a plurality of rollers arranged at intervals, when the test box moves to the limit member, the fourth conveying line drives the connector to pass through the gap between the rollers and cooperate with the groove, and the first adsorption member and the second adsorption member are adsorbed together to fix the test box on the connector, and the fourth conveying line drives the connector and the test box to move synchronously.

[0019] Optionally, a sensing door electrically connected to the control module is provided at the junction of the normal temperature zone, the high temperature zone and the low temperature zone, and at the junction of the water vapor zone, the high temperature zone and the low temperature zone. The passing dimensions of the sensing door match the outer dimensions of the test box. When the sensing door senses the test box, the control module controls the sensing door to open, and the test box passes through the sensing door under the transport of the transport module.

[0020] Optionally, the high temperature zone and the low temperature zone are respectively arranged on first opposite sides of the box body, the normal temperature zone and the water vapor zone are respectively arranged on second opposite sides of the box body, and the normal temperature zone and the water vapor zone are located between the high temperature zone and the low temperature zone.

[0021] Optionally, the normal temperature zone is provided with a placement window, and the to-be-tested component is placed into the normal temperature zone through the placement window; the low temperature zone, the water vapor zone and the high temperature zone are all provided with observation windows for observing the internal state, and the observation windows are in a closed state.

[0022] Optionally, the ambient temperature stress cycle equipment further comprises 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, controls the water vapor conversion module to maintain the water vapor environment of the water vapor zone; and / or, the control module comprises a control panel, through which execution instructions are input.

[0023] The present invention also provides an environmental temperature stress cycle test method, using any of the environmental temperature stress cycle devices described above, the environmental temperature stress cycle test method comprising:

[0024] Place the parts to be tested on the conveying module located in the normal temperature zone;

[0025] Starting the environmental temperature stress cycle equipment;

[0026] The control module controls the conveying module to drive the test piece to be transferred from the normal temperature zone to the low temperature zone, the water vapor zone and the high temperature zone, so that the test piece passes through the low temperature zone, the water vapor zone and the high temperature zone in the box to complete a test;

[0027] The test piece is tested a preset number of times in the box to complete the combined impact test.

[0028] As described above, an environmental temperature stress cycle device and an environmental temperature stress cycle test method of the present invention have the following beneficial effects:

[0029] By dividing the interior of the box into independent normal temperature zone, low temperature zone, water vapor zone and high temperature zone, each zone is independently set and does not affect each other. Compared with testing in different environments by changing the environment of the same area, the time of environmental conversion is avoided, which is beneficial to improving the test efficiency of the parts to be tested. The addition of the water vapor zone is beneficial to getting close to the use environment of the parts to be tested, which is beneficial to improving the accuracy of the test results. The control module controls the conveying module to transfer the parts to be tested between the normal temperature zone, the low temperature zone, the water vapor zone and the high temperature zone, which is convenient for accurately controlling the time the parts to be tested stay in each area, which is beneficial to improving the accuracy of the final test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Shown is a schematic structural diagram of an ambient temperature stress cycle device according to an embodiment of the present invention;

[0031] Figure 2 Shown is a partial structural schematic diagram of an ambient temperature stress cycle device according to an embodiment of the present invention;

[0032] Figure 3 Shown is a schematic structural diagram of a test box according to an embodiment of the present invention.

[0033] Description of Reference Numerals

[0034] 1-box; 11-normal temperature zone; 12-low temperature zone; 13-water vapor zone; 14-high temperature zone; 15-placement window; 16-observation window; 17-first yield hole;

[0035] 2-control module; 21-first temperature control module; 22-second temperature control module; 23-water vapor conversion module; 24-control panel;

[0036] 3-test box; 31-first interface; 32-second interface; 33-groove; 34-second adsorption member;

[0037] 4- first conveyor line;

[0038] 5- Second conveyor line;

[0039] 6-transport mechanism; 61-fourth transport line; 62-connector; 621-rib; 63-first adsorption member;

[0040] 7-third conveying line; 71-limiting member;

[0041] 8-Sensor door. DETAILED DESCRIPTION

[0042] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0043] It should be noted that the diagram provided in the present embodiment only illustrates the basic concept of the present invention in a schematic manner, so the diagram only shows the components related to the present invention rather than drawing according to the number, shape and size of the components during actual implementation. The form, quantity and proportion of each component during actual implementation can be changed at will, and the component layout form may also be more complicated. The structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can be implemented, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect that the present invention can produce and the purpose that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of narration, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0044] See also Figure 1 The present invention provides an environmental temperature stress cycle device, including a box body 1, a conveying module and a control module 2.

[0045] The interior of the box 1 is divided into independent normal temperature area 11, low temperature area 12, water vapor area 13 and high temperature area 14. Each area is provided with an independent space. Compared with the test under different environments by changing the environment of the same area, the time of environmental conversion is avoided, which is conducive to improving the test efficiency of the parts to be tested. Compared with the existing test environment, the water vapor area 13 is added, which is conducive to being close to the use environment of the parts to be tested and is conducive to improving the accuracy of the test results of the parts to be tested.

[0046] The conveying module is installed inside the box 1 and is used to convey the test piece. The conveying module is arranged in the normal temperature zone 11, the low temperature zone 12, the water vapor 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 normal temperature zone 11, the low temperature zone 12, the water vapor zone 13 and the high temperature zone 14, so as to accurately control the time the test piece stays in each area, which is conducive to improving the accuracy of the final test result.

[0047] 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; controls the water vapor conversion module 23 to maintain the water vapor environment of the water vapor zone 13, and the humidity of the water vapor environment can be set to 80% to 100%; so that the environment of each area is maintained in a relatively stable state, which is conducive to improving the efficiency of the test and ensuring the accuracy of the test results.

[0048] In an 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 box 1. Specifically, the water vapor module includes a water tank, a water vapor converter and a dryer, and 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.

[0049] In some embodiments, the control module 2 includes a control panel 24, through which an operator inputs execution instructions, such as the time that the inspected piece stays in each area, the speed of the conveying module, the number of times the inspected piece is circulated in the box 1, the temperature of the high temperature zone 14 and the low temperature zone 12, etc.

[0050] In some embodiments, a high temperature zone 14 and a low temperature zone 12 are respectively provided on first relative sides of the box body 1, and a normal temperature zone 11 and a water vapor zone 13 are respectively provided on second relative sides of the box body 1, and the normal temperature zone 11 and the water vapor zone 13 are respectively provided, and 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, which is beneficial to avoid interference between the high temperature zone 14 and the low temperature zone 12 and to reduce energy consumption.

[0051] In one example, the high temperature zone 14 is located on the left side of the cabinet 1, the low temperature zone 12 is located on the right side of the cabinet 1, the normal temperature zone 11 is located on the upper part of the cabinet 1, and the water vapor zone 13 is located on the lower part of the cabinet 1. In another example, the high temperature zone 14 is located on the left side of the cabinet 1, the low temperature zone 12 is located on the right side of the cabinet 1, the normal temperature zone 11 is located on the lower part of the cabinet 1, and the water vapor zone 13 is located on the upper part of the cabinet 1.

[0052] In another example, the high temperature zone 14 is located on the right side of the cabinet 1, the low temperature zone 12 is located on the left side of the cabinet 1, the normal temperature zone 11 is located at the upper part of the cabinet 1, and the water vapor zone 13 is located at the lower part of the cabinet 1. In another example, the high temperature zone 14 is located on the left side of the cabinet 1, the low temperature zone 12 is located on the right side of the cabinet 1, the normal temperature zone 11 is located at the lower part of the cabinet 1, and the water vapor zone 13 is located at the upper part of the cabinet 1.

[0053] In another example, the high temperature zone 14 is located at the upper part of the cabinet 1, the low temperature zone 12 is located at the lower part of the cabinet 1, the normal temperature zone 11 is located at the left side of the cabinet 1, and the water vapor zone 13 is located at the right side of the cabinet 1. In another example, the high temperature zone 14 is located at the upper part of the cabinet 1, the low temperature zone 12 is located at the lower part of the cabinet 1, the normal temperature zone 11 is located at the right side of the cabinet 1, and the water vapor zone 13 is located at the left side of the cabinet 1.

[0054] In another example, the high temperature zone 14 is located at the lower part of the cabinet 1, the low temperature zone 12 is located at the upper part of the cabinet 1, the normal temperature zone 11 is located at the left side of the cabinet 1, and the water vapor zone 13 is located at the right side of the cabinet 1. In another example, the high temperature zone 14 is located at the lower part of the cabinet 1, the low temperature zone 12 is located at the upper part of the cabinet 1, the normal temperature zone 11 is located at the right side of the cabinet 1, and the water vapor zone 13 is located at the left side of the cabinet 1.

[0055] In some embodiments, the normal temperature zone 11 is provided with a placement window 15 , which can be open or provided with an openable door panel. The object to be tested is placed into the normal temperature zone 11 through the placement window 15 .

[0056] The low temperature area 12, the water vapor area 13 and the high temperature area 14 are all provided with observation windows 16, through which the internal state of the area can be observed, and if there is any abnormality, it can be handled in time. The observation windows 16 are in a closed state to avoid affecting the environmental state of the area.

[0057] In some embodiments, the part to be detected is loaded in the test box 3 so as to be transported in the box 1 by the conveying module, which is conducive to simplifying the structure of the conveying module, and the test box 3 plays a protective role on the part to be detected during the transportation of the part to be detected. The test box 3 is provided with a first interface 31 and a second interface 32 that are electrically connected, wherein the first interface 31 is used to connect the part to be detected, and the second interface 32 is used to connect the test circuit. It should be noted that the first interface 31 is arranged inside the chamber of the test box 3 where the part to be detected is loaded, and when the part to be detected is loaded into the chamber, it is plugged into the first interface 31; the second interface 32 is arranged on the outer wall of the test box 3.

[0058] The outer wall of the box body 1 is provided with a first clearance hole 17 corresponding to the second interface 32, and the low temperature zone 12, the water vapor zone 13 and the high temperature zone 14 are all provided with the first clearance hole 17. When the test box 3 is moved to the position corresponding to the second interface 32 and the first clearance hole 17, the test circuit is connected to the second interface 32 through the first clearance hole 17, so that the to-be-tested part can be tested for electrical performance under the environmental stress of the low temperature zone 12, the water vapor zone 13 and the high temperature zone 14.

[0059] In an application example, the control module 2 can control the moving distance of the conveying module to achieve the correspondence between the second interface 32 of the test box 3 and the first clearance hole 17 of the box 1. A sensor can also be set at the first clearance hole 17. When the sensor senses 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 box 1.

[0060] 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 runs through the high temperature zone 14, the normal temperature zone 11 and the low temperature zone 12, so that the first conveying line 4 can transfer the parts to be detected between the high temperature zone 14, the normal temperature zone 11 and the low temperature zone 12. The second conveying line 5 runs through the low temperature zone 12, the water vapor zone 13 and the high temperature zone 14, so that the second conveying line 5 can transfer the parts to be detected between the low temperature zone 12, the water vapor zone 13 and the high temperature zone 14. The conveying mechanism 6 is provided inside the low temperature zone 12 and the high temperature zone 14, and the conveying mechanism 6 receives the test box 3 from the first conveying line 4 or the second conveying line 5, and drives the test box 3 to move inside the low temperature zone 12 or the high temperature zone 14. The conveying mechanism 6 located in the low temperature zone 12 moves the parts to be detected near the normal temperature zone 11 to a position near the water vapor zone 13, or moves the parts to be detected near the water vapor zone 13 to a position near the normal temperature zone 11. The conveying mechanism 6 located in the high temperature zone 14 moves the to-be-detected parts close to the normal temperature zone 11 to a position close to the water vapor zone 13 , or moves the to-be-detected parts close to the water vapor zone 13 to a position close to the normal temperature zone 11 .

[0061] At this time, the high temperature zone 14 is located on the left or right side of the box body 1, and the low temperature zone 12 is located on the right or left side of the box body 1, and the high temperature zone 14 and the low temperature zone 12 are arranged opposite to each other. The normal temperature zone 11 is located at the upper part or the lower part of the box body 1, and the water vapor zone 13 is located at the lower part or the lower part of the box body 1, and the normal temperature zone 11 and the water vapor zone 13 are arranged opposite to each other.

[0062] In one example, the first conveyor line 4 conveys the test box 3 from the normal temperature zone 11 to the low temperature zone 12, and the conveying mechanism 6 located in the low temperature zone 12 receives the test box 3 from the first conveyor line 4 and transfers the test box 3 to the second conveyor line 5. The second conveyor line 5 receives the test box 3 from the low temperature zone 12 and conveys the test box 3 to the high temperature zone 14 via the water vapor zone 13. The conveying mechanism 6 located in the high temperature zone 14 receives the test box 3 from the second conveyor line 5 and transfers the test box 3 to the first conveyor line 4. Subsequently, the first conveyor line 4 conveys the test box 3 from the normal temperature zone 11 to the low temperature zone 12 again, and the environmental temperature stress test of the test piece to be tested in four temperature spaces of the normal temperature zone 11, the low temperature zone 12, the water vapor zone 13, the high temperature zone 14, and the normal temperature zone 11 is completed in this reciprocating manner.

[0063] In another example, the first conveyor line 4 conveys the test box 3 from the normal temperature zone 11 to the high temperature zone 14, and the conveying mechanism 6 located in the high temperature zone 14 receives the test box 3 from the first conveyor line 4 and transfers the test box 3 to the second conveyor line 5. The second conveyor line 5 receives the test box 3 from the high temperature zone 14 and conveys the test box 3 to the low temperature zone 12 via the water vapor zone 13. The conveying mechanism 6 located in the low temperature zone 12 receives the test box 3 from the second conveyor line 5 and transfers the test box 3 to the first conveyor line 4. Subsequently, the first conveyor line 4 conveys the test box 3 from the normal temperature zone 11 to the high temperature zone 14 again, and the environmental temperature stress test of the test piece to be tested in four temperature spaces of the normal temperature zone 11, the high temperature zone 14, the water vapor zone 13, the low temperature zone 12, and the normal temperature zone 11 is completed in this reciprocating manner.

[0064] In some other embodiments, the first conveyor line 4 runs through the water vapor zone 13, the high temperature zone 14 and the normal temperature zone 11, so that the first conveyor line 4 can transfer the parts to be detected between the water vapor zone 13, the high temperature zone 14 and the normal temperature zone 11. The second conveyor line 5 runs through the water vapor zone 13, the low temperature zone 12 and the normal temperature zone 11, so that the second conveyor line 5 can transfer the parts to be detected between the water vapor zone 13, the low temperature zone 12 and the normal temperature zone 11. The conveying mechanism 6 is provided inside the water vapor zone 13 and the normal temperature zone 11, and the conveying mechanism 6 receives the test box 3 from the first conveyor line 4 or the second conveyor line 5, and drives the test box 3 to move inside the water vapor zone 13 or the normal temperature zone 11. The conveying mechanism 6 located in the water vapor zone 13 moves the parts to be detected close to the high temperature zone 14 to a position close to the low temperature zone 12, or moves the parts to be detected close to the low temperature zone 12 to a position close to the high temperature zone 14. The conveying mechanism 6 located in the normal temperature zone 11 moves the test piece close to the low temperature zone 12 to a position close to the high temperature zone 14 , or moves the test piece close to the high temperature zone 14 to a position close to the low temperature zone 12 .

[0065] At this time, the high temperature zone 14 is located at the upper or lower part of the box body 1, and the low temperature zone 12 is located at the lower or lower part of the box body 1, and the high temperature zone 14 and the low temperature zone 12 are arranged opposite to each other. The water vapor zone 13 is located at the left or right side of the box body 1, and the normal temperature zone 11 is located at the right or left side of the box body 1, and the water vapor zone 13 and the normal temperature zone 11 are arranged opposite to each other.

[0066] Exemplarily, the first conveyor line 4 and the second conveyor line 5 include but are not limited to being configured as belt lines and the like.

[0067] In some embodiments, the conveying module further includes a third conveying line 7 and a stopper 71. The third conveying line 7 is used to connect the first conveying line 4 and the conveying mechanism 6 to transfer the test box 3 between the first conveying line 4 and the conveying mechanism 6, or to connect the second conveying line 5 and the conveying mechanism 6 to transfer the test box 3 between the second conveying line 5 and the conveying mechanism 6. The stopper 71 is installed at the tail end of the third conveying line 7, and the third conveying line 7 has an inclined angle to convey the test box 3 received from the first conveying line 4 or the second conveying line 5 to the stopper 71, so that the conveying mechanism 6 can receive the test box 3 from the first conveying line 4 or the second conveying line 5; or the test box 3 received from the conveying mechanism 6 is conveyed to the first conveying line 4 or the second conveying line 5, completing the transfer of the test box 3 between the first conveying line 4, the second conveying line 5, and the conveying mechanism 6.

[0068] 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 tail 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 tail end of the third conveyor line 7 does not need to be installed with a limiting member 71.

[0069] Furthermore, the head end of the third conveying line 7 is higher than the tail end, so that the test box 3 received by the third conveying line 7 can move from the head end to the tail end of the third conveying line 7 .

[0070] In some embodiments, the transfer mechanism includes a third conveyor line 7 and a stopper 71, wherein the third conveyor line 7 is composed of a plurality of rollers arranged at intervals. The third conveyor line 7 has an inclined angle so that the third conveyor line 7 receives the test boxes 3 received from the first conveyor line 4 and the second conveyor line 5 and transports them to the stopper 71.

[0071] In some embodiments, the conveying mechanism 6 includes a fourth conveying line 61 and a connector 62, wherein the connector 62 is installed on the conveying end of the fourth conveying line 61, so that the fourth conveying line 61 can drive the connector 62 to move. A groove 33 is provided at the bottom of the test box 3, and the third conveying line 7 is composed of a plurality of rollers arranged at intervals. When the test box 3 moves to the position limiting member 71, the fourth conveying line 61 drives the connector 62 to pass through the gap between 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.

[0072] Exemplarily, the fourth conveying line 61 includes but is not limited to being set as a belt line, etc.

[0073] 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 matched with the groove 33 of the test box 3, the first adsorption member 63 and the second adsorption member 34 are adsorbed together to completely fix the test box 3 on the connector 62.

[0074] In one example, the connector 62 is provided with more than two ribs 621, and the bottom of the test box 3 is provided with grooves 33 corresponding to the number of ribs 621, and a rib 621 is inserted into each groove 33, so that the connector 62 is connected to the test box 3. The first adsorption member 63 is installed between two adjacent ribs 621 and located in the middle of the connector 62. The first adsorption member 63 can be set as an iron block, and the second adsorption member 34 can be set as an electromagnet. When the electromagnet is energized, it has magnetism and can adsorb the iron block to fix the test box 3 on the connector 62.

[0075] It should be noted that when the test piece is tested for electrical properties in the low temperature zone 12, the water vapor 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 member 63, and the test box 3 located in the water vapor zone 13 can also be fixed by the connector 62 and the first adsorption member 63. The connector 62 located in the water vapor zone 13 is retractably mounted on the inner wall of the box body 1, and when the test box 3 needs to be fixed, the connector 62 is extended.

[0076] In some embodiments, the junction of the normal temperature zone 11 and the high temperature zone 14 and the low temperature zone 12, and the junction of the water vapor zone 13 and the high temperature zone 14 and the low temperature zone 12 are all provided with induction doors 8, and the induction doors 8 are electrically connected to the control module 2 so that the control module 2 can control the opening and closing of the induction doors 8. In the initial state, each induction door 8 is in a closed state, so that each area is in a closed state, which is conducive to reducing the energy consumption of maintaining the environment of each area.

[0077] When the induction door 8 senses the test box 3, the control module 2 controls the induction door 8 to open, and the test box 3 enters the next area under the transportation of the transportation module through the induction door 8. It should be noted that the passing size of the induction door 8 after opening matches the outer size of the test box 3, so as to reduce the environmental impact of the test box 3 on the area to be entered when passing through the induction door 8, which is conducive to reducing energy consumption.

[0078] To sum up, the environmental temperature stress cycle equipment provided by the present invention divides the inside of the box into independent normal temperature zone, low temperature zone, water vapor zone and high temperature zone. Each zone is independently set and does not affect each other. Compared with the test under different environments realized by changing the environment of the same area, the time of environmental conversion is avoided, which is beneficial to improving the test efficiency of the parts to be tested. The water vapor zone is increased, which is beneficial to being close to the use environment of the parts to be tested and is beneficial to improving the accuracy of the test results. The control module controls the conveying module to transport the parts to be tested between the normal temperature zone, the low temperature zone, the water vapor zone and the high temperature zone, which is convenient for accurately controlling the time that the parts to be tested stay in each area, which is beneficial to improving the accuracy of the final test results.

[0079] The present application also provides an ambient temperature stress cycle test method, which uses the above-mentioned ambient temperature stress cycle device to perform the test. The ambient temperature stress cycle test method of the present application may include steps S110 to S140, which are specifically described as follows:

[0080] Step S110 , placing the object to be inspected on a conveying module located in the normal temperature zone 11 .

[0081] In some embodiments, when the test piece needs to be tested, the ambient temperature stress cycle device is powered on to ensure that the ambient temperature stress cycle device can be started normally. Then, the test piece is placed on the first conveyor line 4 located in the normal temperature zone 11 through the placement window 15 .

[0082] In an application example, the test piece to be tested is placed in the test box 3 so that the conveying module can transport the test piece to be tested. The test box 3 is taken out from the normal temperature zone 11 through the placement window 15, and the test piece to be tested is placed in the test box 3 so that the test piece to be tested is electrically connected to the first interface 31 in the test box 3. Then the test box 3 loaded with the test piece to be tested is placed on the first conveying line 4 in the normal temperature zone 11.

[0083] Step S120, starting the ambient temperature stress cycle equipment.

[0084] In some embodiments, after the piece to be inspected is placed on the first conveyor line 4 in the normal temperature zone 11, the ambient temperature stress cycle equipment is turned on to test the piece to be inspected.

[0085] In step S130 , the control module 2 controls the conveying module to drive the test piece to be transferred from the normal temperature zone 11 to the low temperature zone 12 , the water vapor zone 13 and the high temperature zone 14 , so that the test piece passes through the low temperature zone 12 , the water vapor zone 13 and the high temperature zone 14 in the box 1 to complete a test.

[0086] In one example, after the environmental temperature stress cycle device is started, the control module 2 controls the conveying module to drive the test box 3 to be transported from the normal temperature zone 11 to the low temperature zone 12, the water vapor zone 13, and the high temperature zone 14 in sequence, and finally returns to the normal temperature zone 11, thus completing a test. Since the low temperature zone 12, the water vapor zone 13, and the high temperature zone 14 are set as independent spaces, and the low temperature zone 12 has a first temperature control module 21 to maintain a low temperature environment, the water vapor zone 13 has a water vapor conversion module 23 to maintain a water vapor environment, and the high temperature zone 14 has a second temperature control module 22 to maintain a high temperature environment, it is beneficial to shorten the time to complete a test, and it is beneficial to improve the test efficiency. In addition, the addition of the water vapor zone 13 is beneficial to be close to the use environment of the test piece to be tested, and it is beneficial to improve the accuracy of the test results of the test piece to be tested.

[0087] In another example, after the environmental temperature stress cycle equipment is started, the control module 2 controls the conveying module to drive the test box 3 to be transported from the normal temperature zone 11 to the high temperature zone 14, the water vapor zone 13, and the low temperature zone 12 in sequence, and finally returns to the normal temperature zone 11, thereby completing a test.

[0088] It should be noted that the time that the test piece stays in the high temperature zone 14 , the water vapor zone 13 , and the low temperature zone 12 is set according to the test requirements.

[0089] In some embodiments, after the test box 3 moves to the first clearance holes 17 of the high temperature zone 14, the water vapor zone 13, and the low temperature zone 12, the control module 2 controls the conveying module to stop conveying, and the detection circuit is electrically connected to the second interface 32 of the test box 3 through the first clearance hole 17, so that the electrical performance of the test piece can be tested in the high temperature zone 14, the water vapor zone 13, and the low temperature zone 12 respectively.

[0090] Step S140, the test piece is tested for a preset number of times in the box 1 to complete the combined impact test.

[0091] In some embodiments, after the test piece completes one test, it continues to enter the next cycle test until the test piece completes a preset number of tests in the box 1, thus completing the combined impact test. It should be noted that the preset number of cycle tests of the test piece in the box 1 is set according to actual needs, and the preset number can be set to at least 5 times.

[0092] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An ambient temperature stress cycle device, characterized in that: include: The box is divided into independent normal temperature zone, low temperature zone, water vapor zone and high temperature zone; A conveying module, arranged inside the box and passing through the normal temperature zone, the low temperature zone, the water vapor zone and the high temperature zone, for conveying the parts to be inspected; The control module is electrically connected to the conveying module, and controls the conveying module to transfer the to-be-detected parts among the normal temperature zone, the low temperature zone, the water vapor zone and the high temperature zone.

2. The environmental temperature stress cycle device according to claim 1, characterized in that: The environmental temperature stress cycle device also includes a test box for loading the test piece, 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 box body is provided with a first clearance hole corresponding to the second interface, the test circuit is connected to the second interface through the first clearance hole, and the low temperature zone, the water vapor zone and the high temperature zone are all provided with the first clearance hole.

3. The environmental temperature stress cycle device according to claim 2, characterized in that: The conveying module includes a first conveying line, a second conveying line and a conveying mechanism. The first conveying line runs through the high temperature zone, the normal temperature zone and the low temperature zone. The second conveying line runs through the low temperature zone, the water vapor zone and the high temperature zone. The conveying mechanism is disposed inside the low temperature zone and the high temperature zone. The first conveying line is used to convey the test box from the normal temperature zone to the low temperature zone, or to convey the test box from the normal temperature zone to the high temperature zone; The second conveying line is used to receive the test box from the low temperature zone and convey the test box to the high temperature zone through the water vapor zone; or receive the test box from the high temperature zone and convey the test box to the low temperature zone through the water vapor zone; The conveying mechanism located in the low temperature zone is used to receive the test box from the first conveying line and transfer the test box to the second conveying line; or receive the test box on the second conveying line and transfer the test box to the first conveying line; The conveying mechanism located in the high temperature zone is used to receive the test box from the second conveying line and transfer the test box to the first conveying line; or receive the test box from the first conveying line and transfer the test box to the second conveying line.

4. The environmental temperature stress cycle device according to claim 3, characterized in that: The conveying module also includes a third conveying line for connecting the conveying mechanism with the first conveying line or the second conveying line, and a limiter, wherein the limiter is arranged at the tail end of the third conveying line, and 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 limiter, or to convey the test box received from the conveying mechanism to the first conveying line or the second conveying line.

5. The environmental temperature stress cycle device according to claim 4, 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 cooperating with the first adsorption member. The third conveying line is composed of a plurality of 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 between the rollers and cooperate with the groove, and 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.

6. The environmental temperature stress cycle device according to claim 3, characterized in that: The junction of the normal temperature zone, the high temperature zone and the low temperature zone, and the junction of the water vapor zone, the high temperature zone and the low temperature zone are all provided with a sensing door electrically connected to the control module, and the passing size of the sensing door matches the outer size of the test box. When the sensing door senses the test box, the control module controls the sensing door to open, and the test box passes through the sensing door under the transportation of the conveying module.

7. The environmental temperature stress cycle device according to any one of claims 1 to 6, characterized in that: The high temperature zone and the low temperature zone are respectively arranged on first two opposite sides of the box body, and the normal temperature zone and the water vapor zone are respectively arranged on second two opposite sides of the box body. The normal temperature zone and the water vapor zone are located between the high temperature zone and the low temperature zone.

8. The environmental temperature stress cycle device according to claim 7, characterized in that: The normal temperature zone is provided with a placement window, and the to-be-tested part is placed into the normal temperature zone through the placement window; the low temperature zone, the water vapor zone and the high temperature zone are all provided with observation windows for observing the internal state, and the observation windows are in a closed state.

9. The environmental temperature stress cycle device according to claim 7, characterized in that: The environmental temperature stress cycle equipment also 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 of the water vapor zone; and / or, the control module includes a control panel, and execution instructions are input through the control panel.

10. An environmental temperature stress cycle test method, characterized in that: Using the environmental temperature stress cycle equipment according to any one of claims 1 to 9, the environmental temperature stress cycle test method comprises: Place the parts to be tested on the conveying module located in the normal temperature zone; Starting the environmental temperature stress cycle equipment; The control module controls the conveying module to drive the test piece to be transferred from the normal temperature zone to the low temperature zone, the water vapor zone and the high temperature zone, so that the test piece passes through the low temperature zone, the water vapor zone and the high temperature zone in the box to complete a test; The test piece is tested a preset number of times in the box to complete the combined impact test.

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