Aging test device and aging test method

Abstract

The invention discloses an aging test device and an aging test method, and relates to the technical field of aging tests.The aging test device comprises a box body, a tray, a heating part, a flow mixing part and a first driving part, a test chamber is arranged in the box body, the tray is located in the test chamber and used for bearing electronic equipment, and the heating part is arranged on the box body and spaced from the tray; the flow mixing piece is located in the testing chamber and located between the heating piece and the tray, and the first driving piece is in transmission connection with the flow mixing piece and used for driving the flow mixing piece to reciprocate. Due to the reciprocating motion of the flow mixing piece, air between the heating piece and the electronic equipment generates turbulent flow, the phenomenon that local air flow is not smooth is avoided, the air is fully mixed and subjected to heat exchange, and therefore the temperature uniformity degree of the air in the test chamber is improved, the technical problem that the electronic equipment is not heated uniformly can be solved, and the test efficiency is improved. The technical effects that the temperature of the electronic equipment is more uniform and the testing precision of the aging test is improved are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of aging testing, and in particular to an aging testing device and an aging testing method. Background Art

[0002] Electronic devices require burn-in testing, which simulates real-world usage and reveals potential faults. Related art burn-in testing devices generate hot air through a heating plate and circulate it through a fan, evenly balancing the internal temperature and heating the electronic devices.

[0003] However, local areas of the aging test device are prone to poor air flow, resulting in uneven air temperature inside the aging test device, which in turn causes uneven heating of the electronic equipment and reduces the test accuracy of the aging test. Summary of the Invention

[0004] The present application provides an aging test device and an aging test method to at least solve the problem of uneven heating of electronic devices in the related art.

[0005] The present application provides an aging test device, comprising: a box, a tray, a heating element, a flow mixing element, and a first driving element. A test chamber is provided inside the box, the tray is located within the test chamber and is used to carry electronic equipment, the heating element is provided on the box and is spaced apart from the tray, the flow mixing element is located within the test chamber and between the heating element and the tray, and the first driving element is connected to the flow mixing element for driving the flow mixing element to reciprocate.

[0006] The present application also provides an aging test method, comprising: placing an electronic device in a test chamber; heating the electronic device; disturbing the air in the test chamber; and performing a power-on test on the electronic device.

[0007] Through this application, the heating element heats the electronic device through thermal convection. Due to the reciprocating motion of the mixing element, turbulence is generated in the air between the heating element and the electronic device. On the one hand, the convection effect of the air is enhanced and the heat conduction to the electronic device is accelerated. On the other hand, local poor air flow is avoided, so that the air is fully mixed and heat exchanged, thereby improving the temperature uniformity of the air inside the test chamber. Therefore, the technical problem of uneven heating of electronic equipment can be solved, and the technical effect of more uniform temperature of electronic equipment and improved test accuracy of aging test can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0009] Figure 1 A schematic structural diagram of an aging test device provided in an embodiment of the present application, showing a state where a tray is extended from a loading port; Figure 2 A schematic structural diagram of an aging test device provided in an embodiment of the present application, wherein the tray is in a hidden state; Figure 3 A schematic cross-sectional view of an aging test device provided in an embodiment of the present application; Figure 4 This is a schematic diagram showing the positional relationship between the rocker arm and the first driving member in an embodiment of the present application; Figure 5 A schematic diagram of the partial structure of an aging test device provided in an embodiment of the present application; Figure 6 A schematic diagram of the partial structure of an aging test device provided in an embodiment of the present application; Figure 7 A schematic diagram of the partial structure of an aging test device provided in an embodiment of the present application; Figure 8 A schematic diagram of the partial structure of an aging test device provided in an embodiment of the present application; Figure 9 A schematic flow chart of an aging test method provided in an embodiment of the present application.

[0010] The above drawings include the following reference numerals: 1. Box body; 101. Test chamber; 102. Receiving groove; 103. Drive chamber; 104. Heat dissipation hole; 105. First avoidance groove; 106. Second avoidance groove; 201. Tray; 202. Limiting member; 301. Temperature sensor; 401. Mixing member; 402. Rolling element; 403. Impeller; 404. Connecting shaft; 501. First drive member; 502. Energy storage member; 503. Counterweight member; 504. Drive gear; 505. Drive rack; 506. Connecting rod; 601. Second drive member; 602. Support seat; 603. Screw rod; 605. Guide rod; 701. Heat insulation board; 801. Test connector; 802. Cable; 9. Electronic equipment. DETAILED DESCRIPTION

[0011] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0012] It should be noted that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely for ease of description and simplification of the present application. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present application. The terms "mounted," "connected," and "connected" should be interpreted broadly, and may include, for example, fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. The terms "parallel," "perpendicular," and "equal" encompass the described conditions and conditions similar to the described conditions, provided that the range of the similar conditions is within an acceptable range of deviation, as determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes both absolute parallelism and approximate parallelism, where the acceptable deviation range for approximate parallelism may be, for example, within 5°; "perpendicular" includes both absolute perpendicularity and approximate perpendicularity, where the acceptable deviation range for approximate perpendicularity may also be, for example, within 5°. "Equal" includes both absolute equality and approximate equality, where the acceptable deviation range for approximate equality may be, for example, that the difference between the two is less than or equal to 5% of either. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0013] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0014] The aging test device in the related art generates hot air through a heating plate, and circulates the hot air into the aging test device through a fan to uniformize the internal temperature and heat the electronic equipment therein.

[0015] The circulating hot air will form a stable flow field in the aging test device, which can easily cause poor air flow in local areas for a long time, causing the air temperature in this area to deviate from the average temperature. If this area happens to be located on the surface of an electronic device, it will cause uneven heating of the electronic device, reducing the test accuracy of the aging test.

[0016] An embodiment of the present application provides an aging test device, which is described in detail in combination with its structure and working principle.

[0017] Reference Figure 1 and Figure 2 According to the aging test device provided in the present application, it includes a box body 1, a tray 201, a heating element, a flow mixing element 401 and a first driving element 501. A test chamber 101 is provided inside the box body 1. The tray 201 is located in the test chamber 101 and is used to carry the electronic device 9. The heating element (not shown in the figure) is provided on the box body 1 and is spaced apart from the tray 201. The flow mixing element 401 is located in the test chamber 101 and between the heating element and the tray 201. The first driving element 501 is connected to the flow mixing element 401 for driving the flow mixing element 401 to reciprocate.

[0018] It is understood that electronic device 9 can be a product having a circuit structure, such as a mobile terminal, a hard disk, or a circuit board, and this application does not impose any restrictions thereto. During the burn-in test, the electronic device 9 to be tested is placed on tray 201, and power is supplied to the electronic device 9 to put it into operation. The heating element heats the electronic device 9 through thermal convection, thereby simulating a harsh operating environment and exposing potential defects of the electronic device 9.

[0019] Due to the reciprocating motion of the flow mixing element 401, turbulence is generated in the air between the heating element and the electronic device 9. On the one hand, this enhances the convection effect of the air, accelerates the conduction of heat to the electronic device 9, and promotes the heating of the electronic device 9. On the other hand, the turbulence forms an unstable flow field in the test chamber 101, avoiding local air flow problems and allowing the air to be fully mixed and heat exchanged, thereby improving the temperature uniformity of the air inside the test chamber 101.

[0020] Therefore, the aging test device can solve the technical problem of uneven heating of the electronic device 9, thereby achieving a technical effect of more uniform temperature of the electronic device 9 and improved test accuracy of the aging test.

[0021] It can be understood that in the present application, the movement of the mixing element 401 can be movement, swinging, or a combination of movement and swinging. The transmission connection refers to various connection methods that can transfer energy and motion between the first driving element 501 and the mixing element 401. The first driving element 501 can be connected to the mixing element 401 in different ways to achieve reciprocating motion of the mixing element 401.

[0022] Optionally, in some embodiments, the aging test device further includes an energy storage element 502 , which is connected between the flow mixing element 401 and the first driving element 501 . The energy storage element 502 can alternately recover and release energy to drive the flow mixing element 401 to reciprocate.

[0023] For ease of description, the reciprocating motion of the mixing element 401 is defined as including forward motion and reverse motion. The first driving element 501 provides energy to the energy storage element 502 through a transmission connection. The energy storage element 502 releases energy to drive the mixing element 401 to move forward. During the forward motion, the energy storage element 502 continuously recovers and stores the energy of the mixing element 401, causing the speed of the mixing element 401 to gradually decrease. When the mixing element 401 stops, the energy storage element 502 releases the stored energy to drive the mixing element 401 to move in the reverse direction. During the reverse motion, the energy storage element 502 recovers and releases energy in the same manner, causing the mixing element 401 to change from reverse motion to forward motion.

[0024] By adding the energy storage element 502 , the first driving element 501 only needs to provide initial energy at the beginning of the movement of the flow mixing element 401 , so that the flow mixing element 401 can maintain reciprocating motion within a certain period of time, thereby improving energy utilization efficiency and helping to simplify the driving method of the first driving element 501 .

[0025] For example, referring to Figure 1 、 Figure 2 、 Figure 3 In some embodiments, the energy storage element 502 includes a pendulum rod rotatably mounted on the housing 1. The first driving element 501 is capable of driving the pendulum rod to swing along its horizontal axis. The pendulum rod then performs a reciprocating pendulum motion, alternately converting the kinetic energy of the flow mixing element 401 into gravitational potential energy and vice versa, thereby recovering and releasing energy.

[0026] Of course, in addition to storing energy through gravitational potential energy, the energy storage element 502 can also store energy through elastic potential energy, magnetic field potential energy or internal energy.

[0027] For example, in some embodiments not shown, a compression spring may be used as the energy storage element 502, with pairs of compression springs located on both sides of the flow mixing element. When the flow mixing element 401 moves in the forward direction, the compression spring on one side is compressed, so that the kinetic energy of the flow mixing element 401 is converted into the elastic potential energy of the compression spring. After the flow mixing element 401 moves to the end position, the compression spring rebounds and pushes the flow mixing element 401 to move in the reverse direction. When the flow mixing element 401 moves in the reverse direction, it compresses the compression spring on the other side, repeating the conversion process between kinetic energy and potential energy, thereby achieving reciprocating motion.

[0028] For another example, in some other embodiments not shown, a piston may be used as the energy storage element 502. The piston includes a piston rod and a piston cylinder. The piston cylinder includes an air chamber. The piston rod is inserted into the air chamber. When the mixing element 401 moves in the forward direction, it actuates the piston rod on one side, causing the gas in the air chamber to be compressed. The kinetic energy of the mixing element 401 is converted into the internal energy of the gas. After the mixing element 401 moves to the end position, the gas expands, pushing the piston rod to rebound, causing the mixing element 401 to move in the reverse direction. When the mixing element 401 moves in the reverse direction, it actuates the piston rod on the other side, repeating the conversion process between kinetic energy and internal energy, thereby achieving reciprocating motion.

[0029] Other feasible implementations of the energy storage element 502 may refer to existing related technologies. The energy storage element 502 may also combine and utilize multiple methods to achieve energy storage and release, which will not be described in detail here.

[0030] Continue to refer to Figure 1 、 Figure 2 、 Figure 3 In some embodiments, the box body 1 is provided with a loading port connected to the test chamber 101, and the loading port is opposite to the tray 201 in a first horizontal direction. The tray 201 can be extended or retracted along the first direction through the loading port. The first driving member 501 is provided on the tray 201 and protrudes from the tray 201 in a second horizontal direction. The energy storage member 502 is located on the movement path of the first driving member 501.

[0031] During a burn-in test, tray 201 extends from the loading port, and the electronic device 9 to be tested is placed on it. The device then follows tray 201 into the testing chamber 101. As tray 201 retracts, first drive member 501 comes into contact with the rocker, causing it to swing and gain potential energy. As tray 201 continues to move, the rocker disengages from first drive member 501, converting the potential energy into kinetic energy, which then drives the flow mixing element 401 in reciprocating motion.

[0032] By utilizing the movement of tray 201 to actuate the rocker, the number of active components (or power sources) in the aging test device is reduced, thereby lowering the implementation cost and the complexity of the control system. Furthermore, as tray 201 extends, first drive element 501 can also act on the rocker, causing the flow mixing element 401 to reciprocate, accelerating the dissipation of heat within test chamber 101.

[0033] Further, refer to Figure 4 The distance of the swing arm formed by the swing rod (herein defined as the distance from the rotation axis of the swing rod to the farthest end of the swing rod) is L1. In the vertical direction, the distance from the rotation axis to the first driving member 501 is H. In the first direction, when the tray 201 is retracted, the distance from the rotation axis to the first driving member 501 is L2. This ensures that the rocker arm can smoothly disengage from the first driving member 501 before the tray 201 moves to the end point.

[0034] In addition, in order to enable the first driving member 501 to collide with the rocker during the movement, .

[0035] Optionally, the housing 1 is further provided with a first avoidance groove 105 and a second avoidance groove 106. The second avoidance groove 106 is located on the side of the first avoidance groove 105 close to the test chamber 101 in the second direction and is connected to the test chamber 101. The second avoidance groove 106 extends in the first direction and penetrates the housing 1 on the side where the loading port is located. The first driving member 501 extends into the second avoidance groove 106. The first avoidance groove 105 is connected to the outside in the second direction. The lower side of the first avoidance groove 105 is connected to the second avoidance groove 106. The rocker arm is provided in the first avoidance groove 105, and the lower end of the rocker arm extends into the second avoidance groove 106, thereby enabling collision with the first driving member 501.

[0036] It should be noted that the movement of the energy storage element 502 and the flow mixing element 401 will generate energy loss, so the movement amplitude of the flow mixing element 401 will gradually decrease until it stops completely. Since the flow mixing element 401 only moves for a period of time after the first driving element 501 actuates and releases the rocker arm, the aging test device using this design is preferably used for aging tests on electronic devices 9 with high heat generation or electronic devices 9 that need to move back and forth during the test. For the former, the flow mixing element 401 and the heating element only need to quickly heat up the electronic device 9 in the early stage of the test, and then the electronic device 9 can rely on its own heat to maintain the temperature; for the latter, during the aging test, the tray 201 needs to carry the electronic device 9 back and forth, so that the rocker arm can be repeatedly actuated to keep the flow mixing element 401 in reciprocating motion.

[0037] For example, the electronic device 9 to be tested is a hard drive, a data storage device that includes various categories such as solid-state drives (SSDs), hard disk drives (HDDs), and hybrid hard drives (HHDs). Hard drives generate a high amount of heat when performing high-speed data reading and writing. In the early stages of the burn-in test (i.e., for a period of time after tray 201 is retracted), the heating element heats the hard drive, quickly bringing it to the target test temperature. The flow-mixing element 401 reciprocates during this process, ensuring a more uniform temperature increase. In the middle and late stages of the burn-in test, the hard drive relies on heat generated during operation to maintain itself at the test temperature. The heating element stops working, and the flow-mixing element 401 is stationary, requiring no turbulence.

[0038] Preferably, in some embodiments, the total time from movement to rest after the rocker is separated from the first driving member 501 is defined as T1, and the estimated time from the start of the heating element to heating the electronic device 9 to a suitable temperature and then stopping is defined as T2. , thereby ensuring that the flow mixing element 401 can always achieve the mixing effect during the operation of the heating element. T1 and T2 can be obtained through experiments or simulations, and can be adjusted by adjusting the weight of the swing rod and the parameters of the heating element (such as operating power).

[0039] In some embodiments, the aging test device further includes a temperature sensor 301 , which is located in the test chamber 101 and is used to detect the temperature so as to control the start and stop of the heating element and the power.

[0040] Optionally, in some embodiments, the aging test device further includes a counterweight 503, and the counterweight 503 is disposed at the end of the pendulum rod. Figure 3 , the counterweight 503 can be a pendulum ball, the diameter of which is larger than the diameter of the pendulum rod, thereby effectively improving the energy storage capacity of the energy storage element 502. Figure 4 ,When the pendulum ball is installed at the end, since the pendulum ball and the pendulum rod swing as a whole, the distance L1 of the swing arm is adaptively adjusted, taking the diameter of the pendulum ball into consideration.

[0041] By selecting a counterweight 503 of appropriate weight, the duration of the reciprocating swing of the rocker can be adjusted, thereby controlling the reciprocating motion time of the flow mixing element 401, thereby achieving The counterweight 503 can be made of metal and installed at the end of the pendulum rod by screw connection, welding, etc. The pendulum ball can also be made of other materials and other connection methods as long as it can effectively increase the weight. No further details will be given here.

[0042] Apart from Figure 1 、 Figure 2 、 Figure 3 In addition to the illustrated method in which the energy storage member 502 combines with the movement of the tray 201 to drive the reciprocating motion of the flow mixing member 401, the first driving member 501 may also use an active driving structure such as a drive motor, a hydraulic cylinder, or a pneumatic cylinder, provided that the requirements are met. The first driving member 501 may output linear motion or rotational motion, which is then converted into linear motion or rotational motion of the flow mixing member 401 through a transmission connection. This application does not impose any restrictions on this.

[0043] Optionally, in some embodiments, the heating element is located on the top and / or bottom wall of the test chamber 101, and the flow mixing element 401 can reciprocate in a first horizontal direction and extend in a second horizontal direction. The flow mixing element 401 performs linear reciprocating motion, thereby ensuring that different parts of the flow mixing element 401 have consistent speeds, thereby improving the consistency of the turbulence effect in different areas. Generally, the first direction is perpendicular to the second direction, and the direction of movement of the flow mixing element 401 is perpendicular to the extension direction, thereby maximizing the area of ​​the flow mixing element 401's path and more fully disturbing the air between the heating element and the electronic device 9.

[0044] Exemplarily, in some embodiments, the box body 1 is further provided with a plurality of receiving grooves 102 connected to the test chamber 101, the receiving grooves 102 extend in a first direction, and the receiving grooves 102 are respectively located on both sides of the test chamber 101 in a second direction, and the two ends of the mixing piece 401 are respectively inserted into the receiving grooves 102.

[0045] On the one hand, the receiving groove 102 can play a guiding and positioning role, making the reciprocating motion of the mixing element 401 more accurate. On the other hand, the end of the mixing element 401 is inserted into the receiving groove 102, that is, the mixing element 401 passes through the test chamber 101 in the second direction, thereby maximizing the range of movement of the mixing element 401 and improving the turbulence effect on the air in the test chamber 101.

[0046] Correspondingly, in some embodiments, the tray 201 is staggered in the vertical direction with the flow mixing piece 401 located at the lower side of the electronic device 9 so that the end of the flow mixing piece 401 is inserted into the receiving groove 102 .

[0047] Furthermore, in some embodiments, the aging test apparatus further includes a rolling element 402, which is disposed on the flow mixing element 401 and abuts against the wall of the receiving groove 102. The rolling element 402 can reduce the frictional resistance encountered by the flow mixing element 401 during its reciprocating motion, making the motion smoother. It can also effectively reduce unnecessary energy loss, converting as much energy as possible into kinetic energy of the air, and extending the reciprocating motion duration of the flow mixing element 401.

[0048] Specifically, refer to Figure 5 In some embodiments, the rolling body 402 includes a first roller, a second roller, and a third roller. The first roller and the second roller are respectively located on both sides of the mixing element 401 in the vertical direction, and the third roller is located on the side of the mixing element 401 in the second direction. The first roller, the second roller, and the third roller are respectively in contact with different surfaces of the accommodating groove 102, thereby reducing friction resistance in multiple directions.

[0049] In addition to the roller, the rolling body 402 may also use a rolling structure commonly used in related technologies such as a ball, a needle, etc., which will not be described in detail here.

[0050] It should be noted that by making the reciprocating motion direction of the flow mixing element 401 and the swinging direction of the rocker arm in the same direction (both along the first direction), it is also helpful to simplify the transmission connection between the flow mixing element 401 and the rocker arm.

[0051] For example, referring to Figure 5 In some embodiments, the aging test apparatus further includes a meshing drive gear 504 and a drive rack 505. The drive gear 504 is disposed on the rocker arm, and the drive rack 505 is disposed on the flow mixing element 401 and extends in the first direction. The transmission mechanism of the drive gear 504 and the drive rack 505 conveniently converts the rotation of the rocker arm into linear motion of the flow mixing element 401. The reciprocating range of the flow mixing element 401 can also be easily adjusted by adjusting parameters such as the diameter of the drive gear 504.

[0052] Specifically in Figure 5 In the illustrated embodiment, the heating element is embedded in the top and bottom walls of the test chamber 101, and there are four flow mixing elements 401. The four flow mixing elements 401 are divided into two groups, one of which is located on the upper side of the electronic device 9 in the vertical direction, and the other group is located on the lower side of the electronic device 9 in the vertical direction, thereby disturbing the air on both sides.

[0053] The two flow mixing elements 401 in the same group are located at the same height in the vertical direction and are spaced apart in the first direction. There are two drive racks 505, which are arranged opposite to each other and mesh with the top and bottom of the drive gear 504, respectively. The two flow mixing elements 401 are connected to the two drive racks 505, respectively. When the drive gear 504 rotates, the drive racks 505 cause the two flow mixing elements 401 to move closer to or away from each other in the first direction. At this time, in addition to the turbulence generated by the reciprocating motion of the flow mixing element 401, the opposite / backward motion of the two flow mixing elements 401 can also generate turbulence in opposite directions, thereby guiding the generated airflows to collide with each other, further enhancing the air turbulence effect.

[0054] In addition, in this case, in order to simplify the structure of the transmission connection, the driving rack 505 can be provided only on one side of the flow mixing element 401 (at Figure 3 In the illustrated embodiment, the aging test device is only provided on the upper flow mixing element 401). The aging test device further includes a connecting rod 506, which is connected between the upper and lower flow mixing elements 401, thereby causing the upper and lower flow mixing elements 401 to reciprocate synchronously.

[0055] In other embodiments not shown, the number of flow mixing elements 401 can be further increased, and multiple flow mixing elements 401 at the same height can also share a driving rack 505, thereby simplifying the structure of the transmission connection. In this case, the movement of the multiple flow mixing elements 401 is in the same direction.

[0056] In addition to the transmission method based on the drive gear 504 and the drive rack 505, the conversion between rotation and movement can also be achieved through a connecting rod slider mechanism, a synchronous belt mechanism, etc. For example, in some embodiments, a slider is mounted on the swing arm, and the slider is hingedly connected to the flow mixing element 401. The slider can move along the swing arm, thereby converting the swing of the swing arm into movement of the flow mixing element 401 in the first direction.

[0057] For other feasible transmission modes, please refer to the relevant technologies and will not be described in detail here.

[0058] Optionally, in some embodiments, heating elements are embedded in the top and bottom walls of the test chamber 101. Heat is first conducted between the heating elements and the housing 1, and then heated by convection between the housing 1 and the electronic device 9. By utilizing the housing 1 for heat conduction, the heating elements are prevented from being directly exposed to the test chamber 101, which could cause localized overheating. This improves the temperature uniformity of the air in the test chamber 101.

[0059] The heating element can be a PTC heating sheet. The PTC heating sheet generates heat through resistance heating. When current flows through the PTC heating sheet, it will quickly generate heat to quickly create a stable high-temperature operating environment. When the temperature set by the PTC heating sheet itself is reached, the resistance of the PTC heating sheet will increase significantly, thereby reducing the risk of overheating and ensuring the reliability of the aging test.

[0060] In some embodiments, the top wall and the bottom wall are provided with heat dissipation holes 104 connected to the test chamber 101. The test chamber 101 can exchange air with the outside air through the heat dissipation holes 104, which helps the test chamber 101 to dissipate heat outward when overheated, thereby maintaining the temperature stability of the test chamber 101 and the electronic device 9.

[0061] Optionally, in some embodiments, the aging test apparatus further includes an impeller 403, which is rotatably mounted on the flow mixing element 401. The rotation axis of the impeller 403 forms an angle with the direction of movement of the flow mixing element 401. During the reciprocating motion of the flow mixing element 401, the air can exert a force on the impeller 403, causing the impeller 403 to rotate. The rotating impeller 403 reacts on the air, thereby improving the mixing effect of the air.

[0062] Specifically, impeller 403 may have multiple blades, which are equally spaced along the circumference of impeller 403. The blades have a first surface and a second surface, each having different surface shapes, thereby having different aerodynamic properties. When air acts on impeller 403, different blades are subjected to different pressures. The pressure from the multiple blades generates a torque that drives impeller 403, causing impeller 403 to rotate about its own axis. The specific design of impeller 403 can be referenced to the design of a cup anemometer in the related art and will not be further described here.

[0063] For example, referring to Figure 6 The aging test device also includes a connecting shaft 404, which is vertically penetrated on the flow mixing element 401 and can rotate around its own axis. Multiple impellers 403 are respectively fixed at both ends of the connecting shaft 404, thereby enhancing the turbulence effect of the air between the flow mixing element 401 and the heating element and the air between the flow mixing element 401 and the electronic device 9.

[0064] In some embodiments not shown, the connecting shaft 404 may also be fixedly provided on the flow mixing element 401 , and the impeller 403 may be rotatably sleeved on the connecting shaft 404 and limited by a retaining spring, which is not limited in this application.

[0065] Optionally, in some embodiments, referring to Figure 1 The aging test device also includes a limiting member 202. The tray 201 is provided with a mounting slot for accommodating and carrying the electronic device 9. The limiting member 202 is arranged on the tray 201 and can close or open the entrance of the mounting slot, thereby limiting the electronic device 9.

[0066] For example, in some embodiments, the entrance of the mounting slot faces upward, the electronic device 9 is placed in the mounting slot with its thickness oriented vertically, and the depth of the mounting slot matches the thickness of the electronic device 9. When the electronic device 9 is placed in the mounting slot, the top surface of the electronic device 9 is flush with the top surface of the tray 201 and is exposed at the entrance of the mounting slot. The limiting member 202 is rotatably disposed on the top surface of the tray 201. The limiting member 202 rotates to the entrance and is in close contact with the top surface of the electronic device 9 to compress the edge of the electronic device 9 and stably position the electronic device 9 in the tray 201.

[0067] The limiting member 202 only presses the edge of the electronic device 9, thereby blocking the top surface of the electronic device 9 as little as possible, reducing the obstruction to heat exchange of the electronic device 9, facilitating convective heat exchange between the air and the top surface in the test chamber 101, and reducing temperature unevenness of the electronic device 9.

[0068] Optionally, a hollow hole may be provided at the bottom of the tray 201 to expose the bottom surface of the electronic device 9 , thereby facilitating convection heat exchange between the air in the test chamber 101 and the bottom surface, and reducing temperature unevenness of the electronic device 9 .

[0069] Optionally, in some embodiments, the aging test device further includes a second driving member 601 , which is drivingly connected to the tray 201 and is used to drive the tray 201 to move in the first direction.

[0070] For example, in some embodiments, referring to Figure 2 and Figure 7 The second driving member 601 adopts a rotating motor. The aging test device also includes a support seat 602 and a screw rod 603. The support seat 602 is arranged at the bottom of the driving chamber 103. The screw rod 603 is installed on the support seat 602 and extends in the first direction. The bottom of the tray 201 is threadedly connected to the screw rod 603. The second driving member 601 can drive the screw rod 603 to rotate, thereby driving the tray 201 to move in the first direction.

[0071] Furthermore, the aging test device also includes a guide rod 605 , the end of which is arranged on the box body 1 , the guide rod 605 extends in the first direction, and the tray 201 is arranged on the guide rod 605 , thereby accurately moving along the first direction under the guidance of the guide rod 605 .

[0072] In addition to the rotating motor, the second driving member 601 can also automatically drive the tray 201 through a linear motor, a cylinder, a hydraulic cylinder, etc., which will not be described in detail here.

[0073] Optionally, refer to Figure 8 In some embodiments, the housing 1 further includes a drive chamber 103, with the second drive member 601 located within the drive chamber 103. The aging test apparatus further includes a heat shield 701, which separates the drive chamber 103 from the test chamber 101. The heat shield 701 can reduce the temperature rise of the drive chamber 103 during the aging test and extend the service life of the second drive member 601. The heat shield 701 can be made of commonly used thermal insulation materials in the related art, such as fiberglass, ceramic, etc., and will not be further described here.

[0074] Optionally, refer to Figure 8 In some embodiments, the drive chamber 103 is located on a side of the test chamber 101 away from the loading port in the first direction. One end of the screw rod 603 extends through the heat shield 701 into the drive chamber 103 and is connected to the output shaft of the second drive member 601 via a coupling, thereby achieving power output from the second drive member 601. In addition to a coupling, the screw rod 603 can also be connected to the output shaft via other means, such as a synchronous belt and pulley, or gears, which will not be further described here.

[0075] Furthermore, in some embodiments, the aging test device further includes a test connector 801 . The test connector 801 is located in the test chamber 101 and at an end of the test chamber 101 away from the loading port in the first direction.

[0076] The test connector 801 is used to perform a power-on test on the electronic device 9. By setting the test connector 801 in a position opposite to the loading port, when the tray 201 retracts to the end of the stroke along the first direction, the electronic device 9 contacts the test connector 801. When the tray 201 extends along the first direction, the electronic device 9 and the test connector 801 are separated, thereby integrating the loading and unloading actions of the tray 201 and the plugging and unplugging actions of the electronic device 9, making the structure of the aging test device simpler and more convenient to use.

[0077] In addition, correspondingly, in some embodiments, the tray 201 is provided with a wiring hole connected to the mounting slot at one end close to the test connector 801. After the electronic device 9 is placed in the mounting slot, the interface of the electronic device 9 is exposed to the wiring hole so that the test connector 801 and the interface are connected.

[0078] In some embodiments, the test connector 801 is connected to an external tester via a cable 802. The tester is provided with a control system for controlling the aging test process. The tester can be connected to multiple aging test devices simultaneously, thereby achieving batch and unified control of aging tests. For example, multiple aging test devices can be arranged in an array in a test cabinet, and the tester is also arranged in the test cabinet to form an integrated aging test system.

[0079] It can be understood that the test machine can be any computer device with data processing capabilities, such as a computer, server, mobile terminal, data center, etc. The test connector 801 can be directly connected to the test machine through a cable 802, or can be connected to an intermediate device through a cable 802, and then data is exchanged between the intermediate device and the test machine in the cloud. This application does not impose any restrictions on this.

[0080] Alternatively, in some embodiments (not shown), a control board is integrated into the aging test device. The control board is connected to the test connector 801 via a cable 802 to control the input and output of the test connector 801. In this case, the control board is located within the drive chamber 103, and the cable 802 passes through the heat shield 701 to connect to the control board, thereby preventing thermal failure of the control board and improving the operational reliability of the aging test device.

[0081] This application also provides an aging test method, refer to Figure 9 According to the aging test method provided in the embodiment of the present application, the following steps are included: Step S110 : The electronic device 9 is placed in the test chamber 101 .

[0082] It is understandable that the test chamber 101 is used to implement aging tests, and the electronic device 9 can be a product with a circuit structure, such as a mobile terminal, a hard disk, a circuit board, etc., and this application does not impose any restrictions on this.

[0083] Step S120 : heating the electronic device 9 .

[0084] It is understandable that the air can be heated by a heating element (such as a resistance wire or a resistance sheet), thereby heating the electronic device 9 through convection heat transfer, so that the temperature of the electronic device 9 is increased to the temperature required for the aging test.

[0085] Alternatively, an air inlet and an air outlet connected to the test chamber 101 may be provided to increase the air temperature in the test chamber 101 by continuously delivering hot air in the test chamber 101 , thereby heating the electronic device 9 through convection heat transfer.

[0086] In some embodiments, the electronic device 9 can generate heat by itself, so after the electronic device 9 is heated to the temperature required for the aging test, step S120 ends.

[0087] Step S130 : disturbing the air in the test chamber 101 .

[0088] It is understood that the reciprocating motion of the flow mixing element 401 can achieve a turbulent effect, making the flow field in the test chamber 101 unstable, thereby avoiding the occurrence of prolonged poor gas flow in local areas. Optionally, in some embodiments, step S130 begins before step S120 and ends after step S120, thereby ensuring that turbulence is always performed during the air heating process.

[0089] Step S140: Perform a power-on test on the electronic device 9.

[0090] It is understandable that by powering on, the electronic device 9 is continuously operated in a simulated working state so as to adapt to the external high temperature environment and expose potential defects of the electronic device 9 .

[0091] According to the aging test method provided in the present application, the air in the test chamber 101 is disturbed, thereby generating turbulence, avoiding poor gas flow in local areas of the test chamber 101, ensuring that the gas in the test chamber 101 is fully mixed, making the gas temperature more uniform, and helping to heat the electronic device 9 more evenly, thereby improving the test effect of the aging test.

[0092] The aging test method can be implemented by the aging test device provided in this application, or can also be implemented by other aging test devices with turbulence capabilities, and this application does not limit this.

[0093] According to another embodiment of the present application, an aging test method is provided, comprising the following steps: Step S210 : The electronic device 9 is placed in the test chamber 101 .

[0094] Specifically, step S210 further includes: Step S211 : the tray 201 extends out of the testing chamber 101 .

[0095] The tray 201 is used to carry the electronic device 9 to be tested, and the tray 201 extends out of the test chamber 101 for loading.

[0096] Step S212 : The electronic device 9 is placed on the tray 201 .

[0097] Step S213 : the tray 201 retracts into the test chamber 101 , and the tray 201 actuates the energy storage element 502 , so that the energy storage element 502 obtains energy.

[0098] The kinetic energy of the tray 201 can be converted into elastic potential energy of the energy storage member 502 (for example, the energy storage member 502 is a spring), gravitational potential energy (for example, the energy storage member 502 is a rocker), or internal energy (for example, the energy storage member 502 is a piston).

[0099] Step S220 : heating the electronic device 9 .

[0100] Specifically, step S220 further includes: Step S221: Start the heating element to heat the upper and lower surfaces of the electronic device 9 simultaneously.

[0101] Step S222: When the temperature sensor 301 detects that the temperature has risen to a specified temperature, the heating element is controlled to be powered off and stop heating.

[0102] Step S230 : disturbing the air in the test chamber 101 .

[0103] Specifically, step S230 further includes: Step S231 : the energy storage element 502 alternately recovers and releases energy to drive the flow mixing element 401 located inside the test chamber 101 to reciprocate and disturb the air.

[0104] By utilizing the kinetic energy of the tray 201 to drive the reciprocating motion of the flow mixing member 401 , the reciprocating motion of the flow mixing member 401 and the retraction of the tray 201 can be coupled together, which helps to reduce the number of active components required for the aging test method and lower the implementation cost.

[0105] It is understandable that the movement of the energy storage element 502 and the flow mixing element 401 will generate energy loss, so the movement amplitude of the flow mixing element 401 will gradually decrease until it stops completely. Optionally, the total time from the movement of the flow mixing element 401 to the stationary state is defined as T1, the duration of step S220 (that is, the duration from step S221 to step S222) is T2, and the setting , thereby ensuring that the flow mixing element 401 can always exert the flow mixing effect during the process of air heating.

[0106] Step S240: Perform a power-on test on the electronic device 9.

[0107] The specific content of step S240 can refer to step S140 and will not be repeated here.

[0108] The following introduces the working process of some embodiments of the aging test device. The following content helps to better understand the aging test device and aging test method provided by this application.

[0109] Material loading: When the electronic device 9 needs to be subjected to an aging test, the aging test device receives instructions from the test machine, rotates the second driving member 601, drives the tray 201 to extend out of the test chamber 101, places the electronic device 9 into the tray 201, and rotates the limiting member 202 to limit the electronic device 9.

[0110] Next, the second drive member 601 rotates in the opposite direction, moving the tray 201 into the test chamber 101 and inserting the interface of the electronic device 9 into the test connector 801. As the tray 201 enters the test chamber 101, the first drive member 501 passes the energy storage member 502 (rocker) and the counterweight 503 (rocker ball). After the tray 201 is moved into position, the first drive member 501 disengages from the rocker ball, which drives the rocker to swing back and forth, driving the drive gear 504 to rotate back and forth. The reciprocating rotation of the drive gear 504 drives the two drive racks 505 to slide back and forth in opposite directions, thereby causing the flow mixing element 401 to alternately move closer to and farther away from each other.

[0111] Aging test: The aging test device receives instructions from the test machine, starts the heating element, and heats the upper and lower surfaces of the electronic device 9 simultaneously. During the heating process, the mixing element 401 causes the hot air heated by the heating element to flow alternately to the sides and the center. The reciprocating motion of the mixing element 401 creates an unstable flow field between the heating element and the electronic device 9, prompting the air to mix. During the reciprocating motion of the mixing element 401, the airflow also drives the impeller 403 to rotate. The impeller 403 contacts the nearby air and turbulently flows, causing the airflow to further mix rapidly, thereby making the temperature inside the test chamber 101 uniform and improving the accuracy of the aging test.

[0112] When the temperature sensor 301 detects that the temperature rises to the specified temperature, the aging test device receives instructions from the test machine, controls the heating element to cut off the power, and the heating element stops heating. At this time, the mixing element 401 still reciprocates and stops completely after a period of time when the heating element stops heating.

[0113] Material unloading: After the test is completed, the second driving member 601 rotates, driving the tray 201 to move outside the test chamber 101. The first driving member 501 passes through the pendulum rod and the pendulum ball again. At this time, the mixing member 401 reciprocates again. The mixing member 401 cooperates with the impeller 403 to make the hot air flow in the test chamber 101 quickly dissipate through the heat dissipation holes 104.

[0114] In summary, the aging test device embodiment of the present application drives the tray 201 to move the electronic device 9 through the second driving member 601, so that the test connector 801 is automatically inserted into the interface of the electronic device 9, thereby improving the degree of automation of the electronic device 9 accessing the test machine; the air in the test chamber 101 is mixed by the reciprocating sliding of the mixing member 401, and the temperature inside the test chamber 101 is uniformed in conjunction with the impeller 403, thereby improving the accuracy of the aging test; the movement of the tray 201 is utilized to make the pendulum ball and the pendulum rod drive the drive gear 504 to swing back and forth, thereby making the mixing member 401 move back and forth, without the need for an additional driving source, saving energy consumption.

[0115] The above is a detailed introduction to an aging test device and an aging test method provided by the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. An aging test device, characterized in that: include: A box (1) is provided with a test chamber (101) therein; A tray (201), located in the test chamber (101), for carrying the electronic device (9); A heating element is provided on the box body (1) and is spaced apart from the tray (201); A flow mixing element (401) is located in the test chamber (101) and between the heating element and the tray (201); The first driving member (501) is transmission-connected to the flow mixing member (401) and is used to drive the flow mixing member (401) to reciprocate.

2. The aging test device according to claim 1, characterized in that: The aging test device further comprises an energy storage component (502), wherein the energy storage component (502) is connected between the flow mixing component (401) and the first driving component (501), and the energy storage component (502) is capable of alternately recovering and releasing energy to drive the flow mixing component (401) to reciprocate.

3. The aging test device according to claim 2, characterized in that: The energy storage component (502) comprises a rocker arm, which is rotatably arranged on the box body (1), and the first driving component (501) is capable of pushing the rocker arm to swing along the rotation axis of the rocker arm, and the rotation axis is in the horizontal direction.

4. The aging test device according to claim 3, characterized in that: The box (1) is provided with a loading port connected to the test chamber (101), the loading port is opposite to the tray (201) in a first horizontal direction, and the tray (201) can be extended or retracted along the first direction through the loading port; The first driving member (501) is arranged on the tray (201) and protrudes from the tray (201) in a second horizontal direction, and the energy storage member (502) is located on the movement path of the first driving member (501).

5. The aging test device according to claim 4, characterized in that: The distance between the rotating shaft of the rocker arm and the end of the rocker arm is L1. In the vertical direction, the distance between the rotating shaft and the first driving member (501) is H. In the first direction, when the tray (201) is retracted, the distance between the rotating shaft and the first driving member (501) is L2. .

6. The aging test device according to claim 4, characterized in that: It also includes a counterweight (503), which is arranged at the end of the swing rod.

7. The aging test device according to claim 3, characterized in that: The heating element is located on the top wall and / or the bottom wall of the test chamber (101), and the flow mixing element (401) is capable of reciprocating in a first horizontal direction and extending in a second horizontal direction.

8. The aging test device according to claim 7, characterized in that: The box body (1) is further provided with a plurality of receiving grooves (102) connected to the test chamber (101), the receiving grooves (102) extending in the first direction, the receiving grooves (102) being respectively located on both sides of the test chamber (101) in the second direction, and the two ends of the flow mixing piece (401) being respectively inserted into the receiving grooves (102).

9. The aging test device according to claim 8, characterized in that: It also includes a rolling body (402), the rolling body (402) being arranged on the flow mixing element (401), and the rolling body (402) abutting against the wall surface of the accommodating groove (102).

10. The aging test device according to claim 7, characterized in that: It also includes a driving gear (504) and a driving rack (505) that are meshed and connected, wherein the driving gear (504) is arranged on the rocker, and the driving rack (505) is arranged on the flow mixing element (401) and extends in the first direction.

11. The aging test device according to claim 1, characterized in that: It also includes an impeller (403), which is rotatably arranged on the flow mixing element (401), and a rotation axis of the impeller (403) and a movement direction of the flow mixing element (401) form an angle.

12. The aging test device according to claim 2, characterized in that: It also includes a second driving member (601), which is in driving connection with the tray (201) and is used to drive the tray (201) to move in a first direction.

13. The aging test device according to claim 12, characterized in that: A driving chamber (103) is further provided inside the box (1), and the second driving member (601) is located in the driving chamber (103). The aging test device further comprises a heat insulation board (701), and the heat insulation board (701) separates the driving chamber (103) and the test chamber (101).

14. An aging test method, characterized in that: include: The electronic device (9) is placed in the test chamber (101); heating the electronic device (9); disturbing the air in the test chamber (101); Perform a power-on test on the electronic device (9).

15. The aging test method according to claim 14, characterized in that: The electronic device (9) is placed in a test chamber (101) and includes: The tray (201) extends out of the test chamber (101); The electronic device (9) is placed on the tray (201); The tray (201) retracts into the test chamber (101), and the tray (201) actuates the energy storage component (502), causing the energy storage component (502) to obtain energy; The disturbing the air comprises: The energy storage element (502) alternately recovers and releases energy to drive the flow mixing element (401) located inside the test chamber (101) to reciprocate, thereby disturbing the air.

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