Opening and closing test equipment and test method

Abstract

The embodiment of the invention provides opening and closing test equipment and a test method, relates to the technical field of electronic equipment, and aims to convert the motion direction in a short time and realize rapid reciprocating motion. And the to-be-tested electronic equipment cannot be damaged due to an overshoot phenomenon. The opening and closing test equipment comprises a power supply module which comprises a power rotating shaft, and the power rotating shaft rotates in one direction; the fixing module comprises a first equipment fixing part and a second equipment fixing part, the first equipment fixing part is used for fixing a first part of the bendable electronic equipment, and the second equipment fixing part is used for fixing a second part of the bendable electronic equipment; the transmission module is driven by the one-way rotation of the power rotating shaft to drive the first equipment fixing part to do reciprocating motion, so that the first part of the bendable electronic equipment does opening and closing motion relative to the second part of the bendable electronic equipment; and the maximum unfolding angle of the first equipment fixing part relative to the second equipment fixing part does not exceed the bendable electronic equipment.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to an opening and closing test device and a test method. Background Art

[0002] With the development of electronic devices, more and more electronic devices with display panels use foldable display panels as the display unit of the device, which can be easily stored while maintaining a larger display panel size, and has better portability. However, in daily use of electronic devices equipped with foldable display panels, the bendable parts need to be bent multiple times. Therefore, whether the bendable electronic device can withstand a sufficient number of bends has become the key to evaluating whether the quality of the electronic device is qualified.

[0003] In the related art, the reciprocating motion of a motor is often used, such as driving the motor to switch back and forth between forward and reverse rotation, to drive the fixed part on which the bendable electronic device is fixed, thereby driving the electronic device to open and close cyclically, so as to verify whether the bendable electronic device can withstand a sufficient number of bending times.

[0004] However, the above scheme has several problems when conducting high-speed opening and closing experiments. For example, the acceleration and deceleration of the reciprocating motor in the process of rotation and reversing takes a certain amount of time. In an opening and closing cycle, the time left for the uniform motion process is short, so the folding screen mobile phone cannot be effectively unfolded or closed. For another example, under the restriction of opening and closing time, when the high-speed motor suddenly decelerates and brakes, the clamp may drive one side of the folding screen mobile phone to continue moving (i.e., overshoot), thereby damaging the folding screen mobile phone. For example, during the unfolding process, the clamp drives one side of the folding screen mobile phone to continue moving, causing the flattening angle of the mobile phone to exceed 180°, resulting in damage to the folding screen mobile phone. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides an opening and closing test device and a test method, which can change the movement direction in a short time and realize rapid reciprocating motion, and will not damage the electronic device to be tested due to overshoot.

[0006] An embodiment of the present application provides an opening and closing test device, including a power supply module, the power supply module including a power shaft, the power shaft rotates unidirectionally; a fixing module, the fixing module including a first device fixing part and a second device fixing part, the first device fixing part is used to fix the first part of the bendable electronic device, and the second device fixing part is used to fix the second part of the bendable electronic device; a transmission module, the transmission module drives the first device fixing part to reciprocate under the drive of the unidirectional rotation of the power shaft, so that the first part of the bendable electronic device can open and close relative to the second part of the bendable electronic device.

[0007] Under the mechanical structure limitation of the fixing module and the transmission module, the maximum unfolding angle of the first device fixing part relative to the second device fixing part does not exceed the maximum opening and closing angle of the bendable electronic device. The test equipment can be driven by a unidirectional rotating power source to achieve the reciprocating motion required for the opening and closing test. The power source selection standard is lowered. While achieving high-speed opening and closing tests, overshoot phenomenon that damages the device under test is avoided. Performance and reliability are improved.

[0008] In some possible implementations, the power supply module includes a motor, and the motor includes a power shaft. Since the motor is easy to control, such an implementation has good controllability.

[0009] In some possible implementations, the power supply module further includes a motor controller, which is used to control the motor speed according to a motor speed control database. The motor speed control database is obtained according to a change curve of the opening and closing speed of the bendable electronic device manually operated by a user. By controlling the motor with the motor controller, a more ideal motor speed can be obtained as needed.

[0010] In some possible implementations, the fixing module further includes a clamping part, and the clamping part is respectively provided with at least one group on the first device fixing part and the second device fixing part, each group has two, and the two clamping parts of each group are arranged oppositely along the first direction, and the edges of the first device fixing part and the second device fixing part that match the clamping part are provided with edge protrusions, and the edge protrusions are provided with screw holes; the clamping part includes a clamping block and a clamping bolt, the clamping block and the clamping bolt are axially connected, the clamping blocks of each group of clamping parts are arranged oppositely, and the side of the clamping bolt with a thread is screwed on the screw hole of the edge protrusion; wherein the first device fixing part rotates around an axis parallel to the first direction. This implementation solves the problem of how to firmly fix the device to be tested on the fixing module.

[0011] In some possible implementations, the transmission module includes a first connecting rod, a second connecting rod and a sliding assembly; the first end of the first connecting rod is fixedly connected to the power shaft, the power shaft rotates in one direction, the second end of the first connecting rod is axially connected to the first end of the second connecting rod, the second end of the first connecting rod and the first end of the second connecting rod draw a circular motion trajectory, the second end of the second connecting rod is axially connected to the sliding assembly, and the sliding assembly is used to limit the motion trajectory of the second end of the second connecting rod to a reciprocating motion trajectory. This implementation method provides a structure of a transmission module, which is convenient for limiting the maximum expansion angle of the first device fixing part relative to the second device fixing part by driving the sliding assembly through the first connecting rod and the second connecting rod. When the first connecting rod and the second connecting rod are extended to the maximum limit, the first device fixing part will be pulled back to avoid overshoot.

[0012] In some possible implementations, the sliding assembly includes a first slide rail, and a first slider that cooperates with the first slide rail and can slide on the first slide rail; it also includes a second slide rail that is arranged on a side of the first slider away from the first slide rail, and a second slider that cooperates with the second slide rail and can slide on the second slide rail; the second end of the second connecting rod is axially connected to the first slider, the second slider is connected to the first device fixing part, the extension direction of the first slide rail is the second direction, the extension direction of the second slide rail is the third direction, and the second direction intersects with the third direction. This implementation provides a possible setting method for the sliding assembly, through which the transmission module can control the reciprocating motion of the first device fixing part under the drive of the unidirectional rotating power shaft.

[0013] In some possible implementations, the second direction is parallel to the display panel surface of the bendable electronic device in a fully unfolded state, and the third direction is perpendicular to the second direction, and the structure is simple.

[0014] In some possible implementations, at least one first protrusion is fixedly provided on one side of the first slider facing the first slide rail; the first slide rail includes at least one first slide groove, and the first slider cooperates with the first slide rail through the first protrusion. The first protrusion can achieve cooperation with the slide rail, and the structure is simple.

[0015] In some possible implementations, the first slider is fixedly provided with four first protrusions on one side facing the first slide rail; the first slide rail includes two first slide grooves parallel to each other, the two first slide grooves of the first slide rail each correspond to two first protrusions that can slide in the first slide grooves, and the first slider cooperates with the first slide rail through the first protrusions. This arrangement allows the first slider to slide parallel to the first slide rail, that is, the first slider only changes position on the first slide rail, but does not change posture, and the structure is more stable and reliable.

[0016] In some possible implementations, the second slider includes a slider sub-portion and a connecting sub-portion connected to each other, a second protrusion is provided on the side of the slider sub-portion facing the second slide rail, the second slide rail includes a second slide groove, the second protrusion can slide and rotate in the second slide rail, and the second slider cooperates with the second slide rail through the second protrusion. The connecting sub-portion is used to fix the first device fixed portion. The second slider can not only slide on the second slide rail, but also rotate on the second slide rail, which solves the problem that the first device fixed portion has a posture change relative to the second slide rail during movement.

[0017] In some possible implementations, the device body is also included, the device body includes a bottom surface, the fixing module also includes a base, the base is fixedly arranged on the bottom surface, one side edge of the first device fixing part is provided with two rotating shafts arranged oppositely along the first direction, and the side of the base away from the bottom surface is provided with two rotating shaft fixing parts arranged opposite to the rotating shaft, the rotating shaft fixing part includes an axial hole, the rotating shaft of the first device fixing part is inserted into the axial hole, so that the first device fixing part is axially connected to the base; the second device fixing part is located on the side of the rotating shaft fixing part away from the first device fixing part, and the second device fixing part is fixedly arranged on the base; wherein the first device fixing part rotates around an axis parallel to the first direction. The base is axially connected to the first device fixing part and is fixedly connected to the second device fixing part. Not only can the connection between the first device fixing part and the second device fixing part be made more stable, but it also has the function of limiting the maximum expansion angle between the first device fixing part and the second device part.

[0018] In some possible implementations, the shaft fixing portion further includes a shaft center indicator mark, which is located directly above the shaft hole of the shaft fixing portion. This mark can be used to instruct the tester to align the hinge center of the device to be tested with the shaft center indicator mark, so that the first device fixing portion rotates coaxially with the device to be tested.

[0019] In some possible implementations, the device body further includes a side wall, the side wall and the bottom surface are perpendicular to each other, and the power supply module and the transmission module are arranged on the side wall. Such an arrangement can make the device stable and reliable.

[0020] The embodiment of the present application provides an opening and closing test method, which is implemented by the above-mentioned opening and closing test device, including: driving the power shaft to rotate according to a preset speed control method; after reaching the preset conditions, checking whether the bendable electronic device has passed the test. No manual intervention is required during the test, the degree of automation is high, and manpower is saved.

[0021] In some possible implementations, driving the power shaft to rotate according to a preset speed control method includes driving the power shaft to rotate according to a speed-time curve in a motor speed control database; wherein the motor speed control database is obtained according to a curve of a change in the opening and closing speed of the foldable electronic device when the user manually operates the foldable electronic device. By driving the motor in this way, the speed change during the manual opening and closing operation of the user can be simulated, so that the result obtained by the opening and closing test method is more accurate.

[0022] In some possible implementations, the method for determining the preset speed control mode includes: collecting the opening and closing speed change curve of the foldable electronic device manually operated by the user, and establishing a dot database Filtering database Get the target opening and closing speed change curve; integrate each target opening and closing speed change curve to get the opening and closing speed change database Change database according to opening and closing speed The corresponding relationship between the power shaft speed and the speed of the first device fixed part is established to establish a motor speed control database ω'; the motor speed control database ω' is used as a preset speed control method. Through the above operation, the user's daily manual operation habits can be efficiently simulated in the automatic test to improve the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of an opening and closing test device provided in an embodiment of the present application when it is unfolded to 180 degrees;

[0025] Figure 3 for Figure 2 The structural diagram of the fixed module;

[0026] Figure 4 for Figure 2 An enlarged view of the fixing portion of the rotating shaft;

[0027] Figure 5 for Figure 2 An enlarged view of the middle clamping part;

[0028] Figure 6 for Figure 2 A schematic structural diagram of the first connecting rod, the second connecting rod and the first sliding block;

[0029] Figure 7 for Figure 2 A schematic diagram of the structure of the second slider;

[0030] Figure 8 A front view of an opening and closing test device provided in an embodiment of the present application;

[0031] Fig. 9 A method flow chart of an opening and closing test method provided in an embodiment of the present application;

[0032] Fig.10 A target opening and closing speed variation curve diagram provided in an embodiment of the present application;

[0033] Fig.11 Another target opening and closing speed change curve diagram provided in an embodiment of the present application;

[0034] Fig.12 Another target opening and closing speed change curve diagram provided in an embodiment of the present application;

[0035] Fig.13A schematic diagram of the structure of an opening and closing test device provided in an embodiment of the present application when closed to 135 degrees;

[0036] Fig.14 A schematic diagram of the structure of an opening and closing test device provided in an embodiment of the present application when closed to 90 degrees;

[0037] Fig.15 A schematic diagram of the structure of an opening and closing test device provided in an embodiment of the present application when closed to 45 degrees;

[0038] Fig.16 A schematic diagram of the structure of an opening and closing test device provided in an embodiment of the present application when closed to 0 degrees;

[0039] Fig.17 A schematic diagram of the structure of an opening and closing test device provided in an embodiment of the present application when it is unfolded to 45 degrees;

[0040] Fig.18 A schematic diagram of the structure of an opening and closing test device provided in an embodiment of the present application when it is unfolded to 90 degrees;

[0041] Fig.19 A schematic diagram of the structure of an opening and closing test device provided in an embodiment of the present application when it is unfolded to 135 degrees;

[0042] Fig. 20 A schematic diagram of the structure of another opening and closing test device provided in an embodiment of the present application;

[0043] Fig.21 A schematic diagram of the structure of another opening and closing test device provided in an embodiment of the present application. Description of the drawings:

[0045] 100 - bendable electronic device; 101 - bendable area; 110 - housing; 111 - hinge, 112 - first housing; 113 - second housing; 120 - flexible display panel;

[0046] 201-side wall; 202-bottom surface; 211-first connecting rod; 212-second connecting rod; 213-sliding assembly; 2131-first slide rail; 2132-first slider; 21321-first protrusion; 2133-second slide rail; 2134-second slider; 21341-slider sub-portion; 21342-connecting sub-portion; 21343-second protrusion; 221-first device fixing portion; 222-second device fixing portion; 223-base; 2231-rotating shaft fixing portion; 22311-rotating shaft center indicator mark; 224-clamping portion; 2241-clamping block; 2242-clamping bolt; 231-motor;

[0047] 214-disc; 2141-teeth; 215-spindle; 216-first gear; 217-second gear. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0049] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0050] The words "upper", "lower", "left", "right" and the like used herein to indicate directions are only used to clearly explain the embodiments, thereby describing a possible arrangement or arrangement form of each component. They are not intended to limit the relationship between components or the arrangement direction.

[0051] The terms "first" and "second" in the description and claims of the embodiments of the present application are used to distinguish different objects rather than to describe a specific order of objects. For example, a first target object and a second target object are used to distinguish different target objects rather than to describe a specific order of target objects.

[0052] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0053] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more than two. For example, multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.

[0054] With the development of technology, flexible display panel technology has made great progress. In a flexible display panel, the film structure including the substrate, encapsulation layer and protective cover is a flexible film layer that can be bent to a certain extent. Figure 1The bendable electronic device 100 can be an electronic device including a display panel, such as a mobile phone, a tablet computer, a personal digital assistant (PDA), a car computer, a television, a smart wearable device, a smart home device, etc. The bendable electronic device 100 includes a housing 110 and a flexible display panel 120 mounted on the housing 110. The bendable electronic device 100 can be bent in the bendable area 101, and the bent flexible display panel 120 is located on the outer surface of the body of the bendable electronic device 100 or is stacked inside. The housing 110 includes a hinge 111, a first housing 112 and a second housing 113, and the housing 110 is bent through the hinge 111. For the circuit inside the body, a flexible circuit board can be set in the bendable area 101, so that the circuits in the body on both sides of the bendable area 101 are interconnected. Taking the mobile phone with the flexible display panel 120 stacked inside after folding as an example, the body can be folded when not in use to keep a small size for easy storage in a pocket. When using the mobile phone, the mobile phone can be fully unfolded so that the mobile phone is in a straight-board shape for easy use. After use, the mobile phone needs to be folded and put back into the pocket. Since the bendable electronic device 100 can be bent and folded together with the display panel, it can be easily stored while maintaining a larger display panel size, and has good portability. However, its foldable nature also brings some problems. On the one hand, after multiple foldings, creases will appear on the display panel of the bendable area 101, affecting the visual effect of the display panel, and even causing problems with damage to the display panel. On the other hand, after multiple foldings, the hinge will show aging phenomena such as wear. Therefore, when designing a product, it is particularly important to test and verify the opening and closing durability of the bendable electronic device 100.

[0055] In view of this, the first embodiment of the present application provides an opening and closing test device, which is used to perform technical verification of the above-mentioned bendable electronic device 100 during the product design process, or to perform random inspection before leaving the factory. The device can more accurately fit the user's usage habits of the bendable electronic device, improve the consistency between the test results of the opening and closing test device and the actual usage scenarios, and make the test results more valuable for reference. That is, it can overcome the problems in the prior art that the opening and closing speed of the test device is slow, and the speed change during the opening and closing process of the test device is quite different from the actual usage habits of the user. In addition, the opening and closing test device of the embodiment of the present application has lower requirements for the power supply module therein, which can not only reduce the cost of the opening and closing test device, but also improve the feasibility and reliability of the opening and closing test device.

[0056] It should be noted that the bendable electronic device that can be opened and closed by the opening and closing test device is not limited to the bendable electronic device 100 in the above example, and can also be a bendable electronic device with other structures. The above bendable electronic device 100 is used as an example for description. Figure 1 The bendable electronic device 100 shown illustrates the structure of the opening and closing test device provided in the first embodiment of the present application and the principle of automatically completing the opening and closing test.

[0057] See also Figure 2 The first embodiment of the present application provides an opening and closing test device, including a device body, a power supply module, a transmission module and a fixing module. The device body includes a side wall 201 and a bottom surface 202, the side wall 201 and the bottom surface 202 are perpendicular to each other, the power supply module and the transmission module are arranged on the side wall 201, and the fixing module is arranged on the bottom surface 202. The transmission module includes a first connecting rod 211, a second connecting rod 212 and a sliding assembly 213. The fixing module at least includes a first device fixing portion 221 that can be firmly connected to the first shell 112, a second device fixing portion 222 firmly connected to the second shell 113, and a base 223, and the base 223 is fixedly connected to the bottom surface 202 by fixing methods such as gluing or screwing. Two rotating shafts 2211 are arranged opposite to each other on one side edge of the first device fixing part 221, and two rotating shaft fixing parts 2231 are arranged opposite to each other on the base 223. Each rotating shaft fixing part 2231 is provided with an axial hole for the rotating shaft 2211 on the first device fixing part to pass through. Figure 3 , the rotating shaft 2211 of the first device fixing part passes through the axial hole of the rotating shaft fixing part, and is axially connected to the base 223. The second device fixing part 222 is opposite to the first device fixing part 221, and is fixedly arranged on the base 223 close to the side of the rotating shaft 2211 of the first device fixing part. The first device fixing part 221 can rotate around the rotating shaft 2211 of the first device fixing part itself. Therefore, after the bendable electronic device 100 is placed in the fixing module, the opening and closing of the bendable electronic device is achieved under the drive of the first device fixing part 221. Under the mechanical structure limitations of the fixing module and the transmission module, it is also achieved that the maximum expansion angle of the first device fixing part relative to the second device fixing part does not exceed the maximum opening and closing angle of the bendable electronic device. See Figure 4 , a rotation axis center indicator mark 22311 may also be provided on the upper surface of the two rotation axis fixing parts 2231, and the rotation axis center indicator mark 22311 is located directly above the rotation axis 2211 of the first device fixing part. It is used to instruct the user to align the bending rotation axis of the bendable electronic device 100 with the rotation axis center indicator mark 22311 when installing the bendable electronic device to be tested, so that the first shell 112 of the bendable electronic device 100 and the first device fixing part 221 rotate along the same axis. The fixing module also includes a clamping part 224, and the clamping part 224 is respectively arranged in a group on the first device fixing part 221 and the second device fixing part 222, and each group has two, for example. The two clamping parts 224 on each device fixing part are arranged opposite to each other along a first direction, and the first direction is the axial direction of the rotation axis 2211. See. Figure 5The clamping portion 224 includes a clamping block 2241 and a clamping bolt 2242. The clamping block 2241 and the clamping bolt 2242 are axially connected. The clamping bolt 2242 has a threaded side that is screwed into a screw hole on the edge protrusion of the device fixing portion. The clamping block 2241 is used to contact the side of the bendable electronic device 100 to be tested. A soft material may be provided, such as rubber or silicone. The embodiments of the present application do not limit the specific types of soft materials. By providing a soft material, the degree of support and reliability between the clamping portion 224 and the bendable electronic device to be tested can be increased, and the clamping portion can be prevented from damaging the surface of the bendable electronic device.

[0058] The power supply module may include any power component that can continuously output unidirectional torque to the outside, and a controller that can control the speed of the power component in real time. Exemplarily, the power supply module may include a motor 231. The motor 231 includes a motor shaft. When the motor is started, the motor shaft can rotate around its own axis to output power to the outside. The end of the motor shaft is fixedly connected to the first end of the first connecting rod 211, the second end of the first connecting rod 211 is axially connected to the first end of the second connecting rod 212, and the second end of the second connecting rod 212 is axially connected to the sliding assembly 213. The sliding assembly 213 may include a first slide rail 2131, and a first slider 2132 that matches the first slide rail 2131 and can slide on the first slide rail 2131, and the second end of the second connecting rod 212 is axially connected to the first slider 2132. See. Figure 6 The first slider 2132 includes a first surface facing the first slide rail 2131, and a second surface opposite to the first surface. A first protrusion 21321 that is inserted into the groove of the first slide rail can be fixedly provided on the first surface, and the number and shape of the first protrusion 21321 can be determined according to actual needs. Exemplarily, the first slide rail 2131 includes two first slide grooves that are parallel to each other. On the first surface, four first protrusions 21321 are provided. Each of the two first slide grooves of the first slide rail 2131 corresponds to two first protrusions 21321 that can slide in the first slide grooves. Through the above structure, the first slider 2132 and the first slide rail 2131 can be matched, so that the first slider 2132 can slide on the first slide rail 2131. The sliding assembly 213 can also include a second slide rail 2133 provided on the second surface of the first slider 2132, and a second slider 2134 that matches the second slide rail 2133 and can slide on the second slide rail 2133. See Figure 7, wherein the second slider 2134 includes a slider sub-portion 21341 and a connecting sub-portion 21342 connected to each other, and the slider sub-portion 21341 and the connecting sub-portion 21342 are perpendicular to each other. The connecting sub-portion 21342 is fixedly connected to the side of the first device fixing portion 221 away from the bendable electronic device 100 by gluing or screwing. A groove corresponding to the connecting sub-portion 21342 can also be provided on the base 223, and the groove is used to accommodate the connecting sub-portion 21342 when the first device fixing portion 221 and the base 223 are attached. A second protrusion 21343 is provided on the side of the slider sub-portion 21341 facing the second slide rail 2133. The second slide rail 2133 includes a second slide groove, and the second protrusion can not only slide in the second slide rail 2133, but also rotate in the second slide rail 2133. Therefore, the second slider 2134 can slide on the second slide rail and rotate on the plane where the second slide rail is located with the second protrusion as the center. The extension direction of the first slide rail 2131 is the second direction, and the second direction is parallel to the fully opened bendable electronic device 100; the extension direction of the second slide rail 2133 is the third direction, which is perpendicular to the second direction. In an embodiment where the power supply module includes a motor, the power supply module may also include a motor controller (not shown in the figure) for controlling the rotation speed of the motor 231 according to a preset program. The preset program may include controlling the real-time change of the motor speed so that the fixed module opens and closes the electronic device at the user's usual opening and closing speed and the opening and closing speed change mode. Thereby simulating the actual working environment of the electronic device during the test, thereby ensuring the accuracy and effectiveness of the opening and closing test. The specific control method of the motor controller will be further described below.

[0059] In other embodiments, the movable trajectory of the sliding component needs to include at least two directions, namely the second direction and the third direction, and the second direction and the third direction intersect. This is because, driven by the motor 231, the first connecting rod 211 and the second connecting rod 212 drive the first device fixing part 221 to flip relative to the second device fixing part 222 through the sliding component, thereby simulating the user manually opening and closing the bendable electronic device 100. Therefore, when performing the device opening and closing test, the motion trajectory drawn by the fixed point between the first device fixing part 221 and the sliding component relative to the second device fixing part 222 is a curve. In other embodiments of the present application, the specific structure of the sliding component can be designed according to actual needs. The present application does not limit the number and structure of the sliders and rails in the sliding component. Any design that can meet the requirements of the embodiments of the present application can be used as a sliding component.

[0060] In the above transmission module, there is a corresponding relationship between the rotation angle of the motor and the rotation angle of the first device fixing part, and the corresponding relationship and its derivation process are specifically as follows.

[0061] See also Figure 8, assuming the motor speed is ω and the motor shaft center is oω. The speed of the first device fixed part is The center of the rotating shaft on the first device fixing part is The length of the first connecting rod is l1, the length of the second connecting rod is l2, the distance between the edge of the first device fixing part away from its own rotation axis and the center of the rotation axis of the first device fixing part is R, and the initial state of the fixing module is the unfolded state. During the rotation of the motor, the first connecting rod 211 and the second connecting rod 212 drive the first slider 2132 to make a reciprocating motion along the first slide rail 2131, and the expression of the motion trajectory s of the first slider 2132 is:

[0062]

[0063] When ωt=π+2kπ, k=0,1,2,..., the first slider moves to the farthest position s max for:

[0064] s max =(l2+l1)-(l2-l1)=2l1

[0065] At this time, the state of the fixed module is folded, so:

[0066] R=l1

[0067] When ωt=2kπ,k=0,1,2,..., the first slider moves to the nearest position s min for:

[0068] s min =(l2-l1)-(l2-l1)=0

[0069] At this time, the state of the fixed module is the expanded state.

[0070] According to the motion trajectory of the slider, establish the motor speed ω and the speed of the fixed part of the first device The conversion relationship between the unfolded state and the folded state (ωt∈[0,π]+2kπ, k=0,1,2,...);

[0071]

[0072] Available Relation 1, that is:

[0073]

[0074] From folded state to unfolded state (ωt∈[π,2π]+2kπ, k=0,1,2,...);

[0075]

[0076] Available Relation 2, that is:

[0077]

[0078] Through the above derivation process, the angular velocity ω of the motor shaft rotation and the angular velocity of the first device fixed part rotation can be determined The corresponding relationship at a certain time t.

[0079] During the relevant research, it was found that when the foldable screen mobile phone is quickly opened and closed from the folded state to the unfolded state or from the unfolded state to the folded state, the opening and closing time (i.e., t max ) is between 180-250ms, which may easily lead to display panel failure. Therefore, the testing of the above scenarios should be the focus of the test.

[0080] According to user surveys and statistics on the speed of opening and closing folding screen phones, the curves of the speed of opening and closing during the user's opening and closing process are mainly several typical opening and closing curves. Therefore, the motor speed can be controlled so that the opening and closing test equipment can test the folding screen phone according to the above typical opening and closing curves. For example, the above opening and closing curves can be repeated for testing, or one of the curves can be selected for testing, which can be set according to actual needs.

[0081] See also Fig. 9 , a method for performing an opening and closing test by using the opening and closing test device in the first embodiment is shown in the figure. The determination process and the test process of the opening and closing curve can be described as follows. It can include:

[0082] S1: Collect the opening and closing speed change curve of the folding screen mobile phone when the user manually opens and closes it, and establish a dot database

[0083] When collecting the opening and closing speed change curve of the folding screen mobile phone manually opened and closed by the user, the opening and closing speed change of the folding screen mobile phone can be recorded by the dot timer, and the curve of the opening and closing speed change over time can be made according to the opening and closing speed change. By collecting these curves, a dot database can be formed.

[0084] S2: Manage a database of the speed at which foldable phones are opened and closed by humans The speed change curve that is likely to cause the display panel of the folding screen mobile phone to fail is extracted, that is, Figures 10 to 12 The target opening and closing speed variation curve is given. The origin in the figure is O, the horizontal axis is time t, and the vertical axis is the opening and closing angular velocity of the folding screen mobile phone. Of course, the three forms in the figure are only examples and can be deleted, added or replaced according to actual needs.

[0085] S3: Integrate the target opening and closing speed change curves to obtain the opening and closing speed change database

[0086] Since the speed of the opening and closing mechanism of the first device fixing part 221 needs to simulate the opening and closing speed of a human hand, it is necessary to change the database according to the opening and closing speed. The target opening and closing speed change curve in the control is used to control the opening and closing speed of the first device fixed part, that is, the opening and closing speed of the first device fixed part is The way it changes over time and the opening and closing angular velocity of the folding screen mobile phone in the target opening and closing speed change curve The way the buttons change over time is consistent, thus simulating the user's opening and closing habits, and getting results in the test that are as close as possible to the actual usage process.

[0087] S4: Change database according to opening and closing speed Relation 1 and Relation 2, establish the motor speed control database ω'.

[0088] Obtaining the opening and closing speed change database Then, according to the formula of the corresponding relationship between the motor speed and the opening and closing mechanism speed, the opening and closing mechanism speed database can be Converted into motor speed control database ω' to complete the construction of control system simulating manual opening and closing mode.

[0089] S5: Drive the motor according to the motor speed control database ω' to complete the opening and closing test.

[0090] When performing the opening and closing test, the fixing module can be flattened, the hinge axis of the folding screen mobile phone to be tested is aligned with the shaft center indicator mark 22311, and the clamping bolt 2242 is tightened to firmly fix the folding screen mobile phone on the fixing module, and then the motor 231 and the motor controller are started. The motor controller controls the motor speed according to the motor speed control database obtained in the above steps to perform the opening and closing test.

[0091] See also Figure 2 and Fig.13 In the process of closing the expansion angle between the first device fixing part 221 and the second device fixing part 222 from 180 degrees to 135 degrees, the motor 231 drives the first connecting rod 211 to rotate clockwise, and the first connecting rod 211 lifts the first end of the second connecting rod 212 and pushes the second connecting rod 212 to the right. The first slider 2132 slides to the right under the push of the second connecting rod 212, and the second slide rail 2133 on the first slider 2132 presses the second slider 2134 to the right, so that the second slider 2134 drives the first device fixing part 221 to flip in the clockwise direction, and at the same time, the second slider 2134 slides in the second slide rail 2133.

[0092] See also Fig.13 and Fig.14 In the process of closing the expansion angle between the first device fixing part 221 and the second device fixing part 222 from 135 degrees to 90 degrees, the motor 231 drives the first connecting rod 211 to continue to rotate clockwise, and the first connecting rod 211 pushes the second connecting rod 212 to the right. The first slider 2132 slides to the right under the push of the second connecting rod 212, and the second slide rail 2133 on the first slider 2132 presses the second slider 2134 to the right, so that the second slider 2134 drives the first device fixing part 221 to flip in the clockwise direction, and at the same time, the second slider 2134 slides in the second slide rail 2133.

[0093] See also Fig.14 and Fig.15 In the process of closing the expansion angle between the first device fixing part 221 and the second device fixing part 222 from 90 degrees to 45 degrees, the motor 231 drives the first connecting rod 211 to continue to rotate clockwise, and the first connecting rod 211 pushes the second connecting rod 212 to the right. The first slider 2132 slides to the right under the push of the second connecting rod 212, and the second slide rail 2133 on the first slider 2132 presses the second slider 2134 to the right, so that the second slider 2134 drives the first device fixing part 221 to flip in the clockwise direction, and at the same time, the second slider 2134 slides in the second slide rail 2133.

[0094] See also Fig.15 and Fig.16 , when the expansion angle between the first device fixing part 221 and the second device fixing part 222 is closed from 45 degrees to 0 degrees, the motor 231 drives the first connecting rod 211 to continue to rotate clockwise, and the first connecting rod 211 continues to push the second connecting rod 212 to the right, so that the first connecting rod 211 and the second connecting rod 212 are in the same straight line. The first sliding block slides to the right under the push of the second connecting rod 212, so that the first sliding block 2132 is at the farthest distance from the motor 231. The second slide rail 2133 on the first sliding block 2132 presses the second sliding block 2134 to the right, so that the second sliding block 2134 drives the first device fixing part 221 to flip in the clockwise direction until the folding screen mobile phone is completely closed.

[0095] See also Fig.16 and Fig.17, 1 During the process of the expansion angle between the first device fixing part 221 and the second device fixing part 222 expanding from 0 degrees to 45 degrees, the first connecting rod 211 is driven by the motor 231 to continue to rotate clockwise, and the first connecting rod 211 pulls the second connecting rod 212 to the left. The first slider 2132 slides to the left under the traction of the second connecting rod 212, and the second slide rail 2133 on the first slider 2132 pulls the second slider 2134 to the left, so that the second slider 2134 drives the first device fixing part 221 to flip in the counterclockwise direction, and at the same time, the second slider 2134 slides in the second slide rail 2133.

[0096] See also Fig.17 and Fig.18 In the process of the expansion angle between the first device fixing part 221 and the second device fixing part 222 expanding from 45 degrees to 90 degrees, the first connecting rod 211 is driven by the motor 231 to continue to rotate clockwise, and the first connecting rod 211 pulls the second connecting rod 212 to the left. The first slider 2132 slides to the left under the traction of the second connecting rod 212, and the second slide rail 2133 on the first slider 2132 pulls the second slider 2134 to the left, so that the second slider 2134 drives the first device fixing part 221 to flip in the counterclockwise direction, and at the same time, the second slider 2134 slides in the second slide rail 2133.

[0097] See also Fig.18 and Fig.19 In the process of the expansion angle between the first device fixing part 221 and the second device fixing part 222 expanding from 90 degrees to 135 degrees, the motor 231 drives the first connecting rod 211 to continue to rotate clockwise, and the first connecting rod 211 pulls the second connecting rod 212 to the left. The first slider 2132 slides to the left under the traction of the second connecting rod 212, and the second slide rail 2133 on the first slider 2132 pulls the second slider 2134 to the left, so that the second slider 2134 drives the first device fixing part 221 to flip in the counterclockwise direction, and at the same time, the second slider 2134 slides in the second slide rail 2133.

[0098] See also Fig.19 and Figure 2, when the unfolding angle between the first device fixing part 221 and the second device fixing part 222 is unfolded from 135 degrees to 180 degrees, the motor 231 drives the first connecting rod 211 to continue to rotate clockwise, and the first connecting rod 211 pulls the second connecting rod 212 to the left until the first connecting rod 211 and the second connecting rod 212 overlap. The first slider 2132 slides to the left under the traction of the second connecting rod 212, and the second slide rail 2133 on the first slider 2132 pulls the second slider 2134 to the left until the first slider 2132 is closest to the motor 231. In this process, the second slider 2134 drives the first device fixing part 221 to flip in the counterclockwise direction, so that the folding screen mobile phone is fully unfolded.

[0099] The above process shows the operation mode of the opening and closing test device to fold the foldable screen mobile phone from the unfolded state to the folded state, and then unfold the foldable screen mobile phone from the folded state to the unfolded state. During the test process, the above operation mode needs to be repeated according to the setting until the preset number of repetitions or the preset running time is reached, wherein the preset number of repetitions or the preset running time can be determined according to actual needs.

[0100] In other embodiments, an elastic supporting part with elasticity may be used to replace the clamping part including the clamping block and the clamping bolt to support the electronic device. In fact, the fixing module is not limited to fixing the position by the supporting method, and the fixing module may fix the bendable electronic device 100 in any way. Exemplarily, the first housing 112 of the bendable electronic device 100 may be fixed to the first device fixing part 221 and the second housing 113 may be fixed to the second device fixing part 222 by a suction cup, thereby solving the fixing problem of the bendable electronic device 100.

[0101] In the present application, when the transmission module including the first connecting rod 211, the second connecting rod 212 and the sliding assembly 213 is driven by the power supply module, the unidirectional rotational power output by the power supply module can be converted into the reciprocating motion of the fixed module. Therefore, several problems existing in the reciprocating power source in the prior art are overcome. Specifically, on the one hand, the acceleration and deceleration of the reciprocating motor in the rotation reversing process need to consume a certain amount of time. In an opening and closing cycle, the time remaining for the uniform motion process is short, and thus the unfolding or closing of the folding screen mobile phone cannot be effectively completed. On the other hand, under the limitation of the opening and closing time, when the high-speed moving motor suddenly decelerates and brakes, the fixture may drive one side of the folding screen mobile phone to continue to move (i.e., overshoot phenomenon), thereby damaging the folding screen mobile phone. For example, during the unfolding process, the fixture drives one side of the folding screen mobile phone to continue to move, so that the flattening angle of the mobile phone exceeds 180°, resulting in damage to the folding screen mobile phone. Compared with the prior art, the first embodiment of the present application fundamentally eliminates these problems, adopts a unidirectional rotational power source, and does not require reversing. Therefore, there is no need to consider the time consumed by the motor reversing, let alone worry about overshoot causing damage to the mobile phone. Moreover, since the opening and closing test equipment can simulate the flipping speed of the mobile phone during actual use, the test results are more meaningful for reference.

[0102] See also Fig. 20 and Fig.21 The second embodiment of the present application provides another opening and closing test device, including a power supply module (not shown in the figure), a transmission module and a fixing module. The power supply module and the fixing module can be the same as the first embodiment of the present application, and will not be repeated herein. The transmission module can include a disc 214, the lower part of the disc 214 is coaxially fixedly connected to the rotating shaft of the motor, and the upper part of the disc 214 is provided with teeth 2141. The transmission module also includes a main shaft 215 arranged above the disc 214, and one end of the main shaft 215 is coaxially connected to the rotating shaft of the first device fixing part 221. A first gear 216 and a second gear 217 are also fixedly provided on the main shaft 215, and the teeth on the first gear 216 and the second gear 217 can both cooperate with the teeth 2141 on the edge of the disc. The orthographic projection of the first gear 216 is at least partially located at the edge of the disc 214, and the orthographic projection of the second gear 217 is at least partially located on the edge of the disc 214, on the side opposite to the orthographic projection of the first gear.

[0103] When in use, the motor drives the disc 214 to rotate unidirectionally in the clockwise direction. When the edge portion with the teeth 2141 on the disc 214 rotates to below the first gear 216, the disc 214 meshes with the first gear 216, and the disc 214 drives the main shaft 215 and the first device fixing part 221 to rotate, and the angle between the first device fixing part 221 and the second device fixing part 222 is reduced from 180 degrees, until the angle between the first device fixing part 221 and the second device fixing part 222 is reduced to 0 degrees, that is, when the folding screen mobile phone placed on the fixing module is folded from a fully unfolded state to a fully folded state, the disc 214 is separated from the first gear 216. Then, when the edge portion with teeth 2141 on the disk 214 rotates to below the second gear 217, the disk 214 meshes with the second gear 217, and the disk 214 drives the main shaft 215 and the first device fixing part 221 to rotate, and the angle between the first device fixing part 221 and the second device fixing part 222 expands from 0 degrees, until the angle between the first device fixing part 221 and the second device fixing part 222 expands to 180 degrees, that is, when the folding screen mobile phone placed on the fixing module is opened from a fully folded state to a fully unfolded state, the disk 214 is separated from the second gear 217. From then on, the opening and closing operation of the folding screen mobile phone is completed.

[0104] When in use, the motor can also drive the disc 214 to rotate unidirectionally in the counterclockwise direction. When the edge portion with the teeth 2141 on the disc 214 rotates to below the second gear 217, the disc 214 meshes with the second gear 217, and the disc 214 drives the main shaft 215 and the first device fixing part 221 to rotate, and the angle between the first device fixing part 221 and the second device fixing part 222 is reduced from 180 degrees, until the angle between the first device fixing part 221 and the second device fixing part 222 is reduced to 0 degrees, that is, when the folding screen mobile phone placed on the fixing module is folded from a fully unfolded state to a fully folded state, the disc 214 is separated from the second gear 217. Then, when the edge portion with teeth 2141 on the disk 214 rotates to below the first gear 216, the disk 214 meshes with the first gear 216, and the disk 214 drives the main shaft 215 and the first device fixing part 221 to rotate, and the angle between the first device fixing part 221 and the second device fixing part 222 expands from 0 degrees, until the angle between the first device fixing part 221 and the second device fixing part 222 expands to 180 degrees, that is, when the folding screen mobile phone placed on the fixing module is opened from a fully folded state to a fully unfolded state, the disk 214 is separated from the first gear 216. From then on, the opening and closing operation of the folding screen mobile phone is completed.

[0105] In the second embodiment, the angular velocity of the motor is linearly related to the angular velocity of the first device fixed part flipping. The relationship between the angular velocity of the motor and the angular velocity of the first device fixed part flipping can be determined according to the specific parameters of the first gear 216, the second gear 217 and the main shaft 215 during actual implementation. The relationship between the angular velocity of the motor and the angular velocity of the first device fixed part flipping can also be determined by measuring the angular velocity of the first device fixed part flipping when the motor is running at a known speed.

[0106] In addition to determining the relationship between the motor angular velocity and the flip angular velocity of the first device fixed part, it is also necessary to determine the opening and closing curve of the first device fixed part. Then, an opening and closing test is performed according to the above relationship and the opening and closing curve. The process of determining the opening and closing curve of the first device fixed part and the test process can be described as follows. The method of performing an opening and closing test by the opening and closing test device in the second embodiment may include:

[0107] S1: Collect the opening and closing speed change curve of the folding screen mobile phone manually opened and closed by the user, and establish a dot database.

[0108] S2: Screening the database of manual opening and closing speeds of folding screen mobile phones. Extracting the speed change curve that is likely to cause the display panel of the folding screen mobile phone to fail, that is, Figures 5 to 7 The target opening and closing speed change curve is shown.

[0109] S3: Integrate each target opening and closing speed change curve to obtain an opening and closing speed change database.

[0110] Since the rotation speed of the opening and closing mechanism of the first device fixing part 221 needs to simulate the opening and closing speed of human hands, it is necessary to control the opening and closing speed of the first device fixing part according to the target opening and closing speed change curve in the opening and closing speed change database, so as to simulate the user's opening and closing habits and obtain results as close as possible to those in actual use during the test.

[0111] S4: Establish a motor speed control database according to the opening and closing speed change database and the relationship between the motor angular velocity and the flip angular velocity of the first device fixing part.

[0112] After obtaining the opening and closing speed change database, the opening and closing mechanism speed database can be converted into a motor speed control database based on the relationship between the motor angular velocity and the flip angular velocity of the first device fixed part to complete the construction of a control system that simulates the manual opening and closing method.

[0113] S5: Drive the motor according to the motor speed control database to complete the opening and closing test.

[0114] The above process shows the operation mode of the opening and closing test device to fold the foldable screen mobile phone from the unfolded state to the folded state, and then unfold the foldable screen mobile phone from the folded state to the unfolded state. During the test process, the above operation mode needs to be repeated according to the setting until the preset number of repetitions is reached, where the preset number of repetitions can be determined according to actual needs.

[0115] Compared with the prior art, the second embodiment of the present application fundamentally eliminates the problems existing in the prior art, adopts a unidirectional rotating power source, and does not require reversing. Therefore, there is no need to consider the time consumed by the motor reversing, and there is no need to worry about overshoot causing damage to the mobile phone. In addition, since the opening and closing test equipment can simulate the flipping speed of the mobile phone during actual use, the test results are more meaningful for reference.

[0116] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An opening and closing test device, characterized in that: include: A power supply module, the power supply module comprising a power shaft, the power shaft rotates in one direction; A fixing module, the fixing module comprising a first device fixing portion and a second device fixing portion, the first device fixing portion is used to fix a first part of the bendable electronic device, and the second device fixing portion is used to fix a second part of the bendable electronic device; The transmission module drives the first device fixing part to reciprocate under the unidirectional rotation of the power shaft, so that the first part of the bendable electronic device can open and close relative to the second part of the bendable electronic device.

2. The opening and closing test device according to claim 1, characterized in that: The power supply module includes a motor, and the motor includes the power shaft.

3. The opening and closing test device according to claim 2, characterized in that: The power supply module further includes a motor controller, and the motor controller is used to control the speed of the motor according to the motor speed control database; The motor speed control database is obtained according to the opening and closing speed variation curve of the foldable electronic device manually operated by the user.

4. The opening and closing test device according to claim 1, characterized in that: The fixing module further includes a clamping part, wherein at least one group of the clamping parts is respectively arranged on the first device fixing part and the second device fixing part, each group includes two clamping parts, and the two clamping parts of each group are arranged opposite to each other along a first direction, and the edges of the first device fixing part and the second device fixing part that match the clamping part are provided with edge protrusions, and the edge protrusions are provided with screw holes; The clamping part comprises a clamping block and a clamping bolt, the clamping block and the clamping bolt are axially connected, the clamping blocks of each group of the clamping parts are arranged opposite to each other, and the threaded side of the clamping bolt is screwed to the screw hole of the edge protrusion; Wherein, the first device fixing part rotates around an axis parallel to the first direction.

5. The opening and closing test equipment according to claim 1, characterized in that: The transmission module includes a first connecting rod, a second connecting rod and a sliding assembly; The first end of the first connecting rod is fixedly connected to the power shaft, and the power shaft rotates unidirectionally. The second end of the first connecting rod is axially connected to the first end of the second connecting rod. The second end of the first connecting rod and the first end of the second connecting rod move in a circular motion trajectory. The second end of the second connecting rod is axially connected to the sliding assembly, and the sliding assembly is used to limit the motion trajectory of the second end of the second connecting rod to a reciprocating motion trajectory.

6. The opening and closing test device according to claim 5, characterized in that: The sliding assembly includes a first slide rail, and a first slider that cooperates with the first slide rail and can slide on the first slide rail; it also includes a second slide rail that is arranged on a side of the first slider away from the first slide rail, and a second slider that cooperates with the second slide rail and can slide on the second slide rail; the second end of the second connecting rod is axially connected to the first slider, and the second slider is connected to the first device fixing part, the extension direction of the first slide rail is the second direction, the extension direction of the second slide rail is the third direction, and the second direction intersects with the third direction.

7. The opening and closing test device according to claim 6, characterized in that: The second direction is parallel to a display panel surface of the bendable electronic device in a fully unfolded state, and the third direction is perpendicular to the second direction.

8. The opening and closing test device according to claim 6, characterized in that: At least one first protrusion is fixedly provided on a side of the first sliding block facing the first sliding rail; The first slide rail includes at least one first slide groove, and the first sliding block cooperates with the first slide rail through the first protrusion.

9. The opening and closing test device according to claim 8, characterized in that: Four first protrusions are fixedly arranged on one side of the first sliding block facing the first sliding rail; The first slide rail includes two first slide grooves parallel to each other, the two first slide grooves of the first slide rail each correspond to two first protrusions that can slide in the first slide grooves, and the first sliding block cooperates with the first slide rail through the first protrusions.

10. The opening and closing test device according to claim 6, characterized in that: The second slider includes a slider sub-part and a connecting sub-part which are connected to each other. A second protrusion is provided on the side of the slider sub-part facing the second slide rail. The second slide rail includes a second slide groove. The second protrusion can slide and rotate in the second slide groove. The second slider cooperates with the second slide rail through the second protrusion. The connecting sub-part is used to fix the first device fixing part.

11. The opening and closing test device according to claim 1, characterized in that: It also includes a device body, the device body includes a bottom surface, the fixing module also includes a base, the base is fixedly arranged on the bottom surface, one side edge of the first device fixing part is provided with two rotating shafts arranged opposite to each other along a first direction, the side of the base away from the bottom surface is provided with two rotating shaft fixing parts arranged opposite to the rotating shafts, the rotating shaft fixing part includes an axial hole, the rotating shaft of the first device fixing part is inserted into the axial hole, so that the first device fixing part is axially connected to the base; the second device fixing part is located on a side of the rotating shaft fixing part away from the first device fixing part, and the second device fixing part is fixedly arranged on the base; Wherein, the first device fixing part rotates around an axis parallel to the first direction.

12. The opening and closing test device according to claim 11, characterized in that: The rotating shaft fixing portion further includes a rotating shaft center indicating mark, and the rotating shaft center indicating mark is located directly above the shaft hole of the rotating shaft fixing portion.

13. The opening and closing test device according to claim 11, characterized in that: The equipment body further comprises a side wall, wherein the side wall and the bottom surface are perpendicular to each other, and the power supply module and the transmission module are arranged on the side wall.

14. A method for opening and closing test, characterized in that: The method is implemented by the opening and closing test device according to any one of claims 1 to 13, comprising: driving the power shaft to rotate according to a preset speed control method; After the preset conditions are met, it is checked whether the bendable electronic device passes the test.

15. The opening and closing test method according to claim 14, characterized in that: Driving the power shaft to rotate according to the preset speed control method includes driving the power shaft to rotate according to a speed-time curve in a motor speed control database; The motor speed control database is obtained according to the opening and closing speed variation curve of the foldable electronic device manually operated by the user.

16. The opening and closing test method according to claim 14, characterized in that: The method for determining the preset speed control mode includes: Collect the opening and closing speed change curve of the bendable electronic device manually operated by the user, and establish a dot database φ'; Filter the dot database φ' to obtain a target opening and closing speed variation curve; Integrate each of the target opening and closing speed change curves to obtain an opening and closing speed change database φ”; Establish a motor speed control database ω' according to the corresponding relationship between the opening and closing speed change database φ", the power shaft speed and the first device fixed part speed; The motor speed control database ω' is used as the preset speed control mode.

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