Housing apparatus and method for flexible circuit boards

Abstract

The application relates to the technical field of reinforced computing equipment, and discloses a storage device for a flexible circuit board, a central control device of the storage device is used for adjusting the tension of the flexible circuit board; a tension monitoring device is electrically connected with the central control device; a tensioning action device is located downstream of the tension monitoring device and is electrically connected with the central control device; a collection action device comprises an angle-sensitive device and a winder; an acceleration sensor is located on a rack and is used for monitoring and detecting external vibration and impact excitation force and excitation frequency of the storage device and feeding back to the central control device; the central control device combines the feedback tension signal and the angular displacement signal, judges whether the impact excitation force and the excitation frequency exceed the upper limit, and controls the collection action device and the tensioning action device to perform corresponding actions. The present application can adjust the tension of the flexible circuit board on the rigid-flex coupling board in real time, can collect the excess flexible circuit board at the same time, and can enhance the vibration isolation and impact resistance performance of electronic products. The application further discloses a storage method for a flexible circuit board.

Description

Technical Field

[0001] This application relates to the field of ruggedized computing device technology, such as a storage device and storage method for flexible circuit boards. Background Technology

[0002] In the field of ruggedized computing equipment, circuit boards and their components usually need to meet vibration and shock performance requirements, thus requiring good vibration isolation and shock protection measures. However, due to their inherent flexibility and the fragility of the rigid-flexible coupling contact points, flexible circuit boards on rigid-flexible coupling plates are not easily subjected to simple vibration isolation and shock protection measures.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0005] This disclosure provides a storage device and method for flexible circuit boards, so as to facilitate the storage of flexible circuit boards on rigid-flexible coupling plates in the field of rugged computing.

[0006] In some embodiments, the flexible circuit board storage device is used to store flexible circuit boards on a rigid-flexible coupling plate of a ruggedized computer. The storage device includes a central control device, a tension monitoring device, a tensioning action device, a coiling action device, a winding correction device, and an acceleration sensor. The central control device is used to adjust the tension of the flexible circuit board. The tension monitoring device is electrically connected to the central control device and is used to acquire the tension within the flexible circuit board and transmit the tension signal to the central control device. The tensioning action device is located downstream of the tension monitoring device and is electrically connected to the central control device for tensioning the flexible circuit board. The coiling action device... The device includes an angle-sensitive device and a retractor. The angle-sensitive device senses the displacement of the flexible circuit board inside the retractor and feeds back the corresponding signal to the central control device. The winding action device is used to wind up the flexible circuit board. The winding correction device is used to correct the position of the flexible circuit board. An acceleration sensor is located on the frame and is used to monitor and detect the external vibration, impact excitation force and excitation frequency of the storage device and feed them back to the central control device. The central control device combines the feedback tension signal and angular displacement signal to determine whether the impact excitation force and excitation frequency exceed the upper limit and controls the winding action device and tensioning action device to perform corresponding actions.

[0007] Optionally, the retractor includes a housing, a limiting guide wheel assembly, a movable guide wheel, a linkage, a translation mechanism, and a drive motor: the housing has an involute groove inside, which is used to accommodate the flexible circuit board; the limiting guide wheel assembly is installed at the end of the involute groove to guide the flexible circuit board; the movable guide wheel is movably installed in the involute groove to cooperate with the limiting guide wheel assembly, drive the flexible circuit board to move, and guide the flexible circuit board; the first end of the linkage is installed in the middle of the housing, and the second end is connected to the movable guide wheel to drive the movable guide wheel to move in the involute groove; the translation mechanism is installed on the linkage to move the second end of the linkage along the involute groove; the drive motor is connected to the first end of the linkage to drive the linkage to rotate; when the retractor winds up the flexible circuit board, the drive motor drives the linkage in the retractor to rotate in a first direction, and the movable guide wheel installed on the linkage drives the flexible circuit board to move in the involute groove of the retractor housing, while simultaneously winding the flexible circuit board in the involute groove, completing the flexible circuit board winding action.

[0008] Optionally, the involute groove is provided with a moving groove and a receiving groove. The moving groove cooperates with the drive shaft structure of the moving guide wheel to guide the moving guide wheel. The receiving groove includes a first receiving groove and a second receiving groove. The first receiving groove and the second receiving groove are respectively installed on both sides of the moving groove. The flexible circuit board enters from the inlet of the first receiving groove, changes direction at the end of the involute groove and enters the second receiving groove, and finally exits from the outlet of the second receiving groove.

[0009] Optionally, the limiting guide wheel assembly includes an inlet limiting guide wheel, an outlet limiting guide wheel, and a reversing limiting guide wheel assembly. The inlet limiting guide wheel is installed at the inlet of the first receiving groove and is used to cooperate with the moving guide wheel to allow the flexible circuit board to enter the first receiving groove. The outlet limiting guide wheel is installed at the outlet of the second receiving groove and is used to cooperate with the moving guide wheel to allow the flexible circuit board to leave the second receiving groove. The reversing limiting guide wheel assembly is installed at the end of the involute groove and is used to cooperate with the moving guide wheel to allow the flexible circuit board to leave the first receiving groove and enter the second receiving groove.

[0010] Optionally, the angle-sensitive device includes an angular displacement sensor to sense the rotation angle of the linkage and provide real-time feedback to the central control device for real-time monitoring of the rotation displacement of the linkage.

[0011] Optionally, the tension monitoring device includes a tension guide wheel assembly, a tension sampling wheel assembly, a tension sensor, and a tension transmitter. The tension guide wheel assembly is used to guide the flexible circuit board and includes a first guide wheel assembly and a second guide wheel assembly. After being guided by the first guide wheel assembly, the flexible circuit board bypasses the tension sampling wheel assembly and is then guided by the second guide wheel assembly. The tension sensor is installed on the tension sampling wheel assembly and is used to acquire the tension signal within the flexible circuit board. The tension transmitter is used to process the tension signal and send the processed signal to the central control device.

[0012] Optionally, the tensioning device includes a third guide wheel group and a tensioning wheel group. The tensioning wheel group includes a tensioning wheel and an actuation mechanism. The flexible circuit board passes through the third guide wheel group and then through the tensioning wheel group.

[0013] Optionally, the winding correction device includes a roller group, including a middle roller, a left roller and a right roller. The middle roller is used to support the flexible circuit board to move forward, and the left roller and the right roller are placed at an angle to the outside to correct the deviation of the flexible circuit board.

[0014] In some embodiments, the method for storing flexible circuit boards uses the aforementioned storage device for storing flexible circuit boards for ruggedizing computers, and the storage method includes:

[0015] Obtain the impact excitation force and excitation frequency;

[0016] Determine whether the impact excitation force and excitation frequency exceed the upper limit;

[0017] If the upper limit is not exceeded, a convergence action command is issued to activate the convergence action device.

[0018] When the tension monitoring device detects that the tension of the flexible circuit board has reached the preset value of the system action, it locks the rotation of the winding device of the retraction action device and causes the tensioning action device to act.

[0019] The tension on the flexible circuit board is adjusted synchronously in real time according to the changes in external excitation force and excitation frequency until the ratio of external excitation frequency to natural frequency is less than 1, and the tension is adjusted synchronously according to external changes.

[0020] Optional storage methods also include:

[0021] After powering on the storage device, perform a self-test.

[0022] Upon receiving abnormal signal data from the sub-device sensors, a braking command and an alarm command are issued, causing each drive device of the storage equipment to brake and issue a warning signal; or,

[0023] If no abnormal signal data is received, determine whether the data transmitted by the accelerometer is abnormal;

[0024] Upon receiving data from the abnormal acceleration sensor, a braking command and an alarm command are issued, causing each drive unit of the storage device to brake and issue a warning signal.

[0025] It should be noted that, generally speaking, vibration systems in engineering practice are continuous entities with continuously distributed mass and stiffness, theoretically possessing an infinite number of degrees of freedom. Strictly speaking, they require a continuous model for description. However, the vibration analysis of continuums involves partial differential equations, which are very difficult to solve, and most partial differential equations do not have analytical solutions. Furthermore, many complex vibration systems cannot be simplified to single-degree-of-freedom systems but require simplification to multi-degree-of-freedom systems to reflect the mechanical essence of the actual problem. Therefore, many continuous elastic bodies in engineering practice are typically simplified into models with a finite number of degrees of freedom for analysis using appropriate methods.

[0026] Therefore, to simplify the analysis, in actual calculations, the continuum is often simplified into a multi-degree-of-freedom system. It should be noted that for a vibrating system, if its vibration amplitude is unrestricted, the generalized coordinates and their time derivatives (generalized velocity, generalized acceleration) in the vibration equation generally exist in a nonlinear form; however, if the amplitude of the system's vibration is very small, such that retaining only the first-order terms of the generalized coordinates and their time derivatives in the vibration equation is sufficiently accurate, then the system can be described by linear differential equations.

[0027] Taking one degree of freedom as an example, force analysis is performed, and the dynamic equations of the system can be obtained by superposition as follows:

[0028]

[0029] In the formula, M, C, and K are the mass matrix, damping matrix, and stiffness matrix, respectively; the displacement matrix is ​​used for the flexible circuit board storage device and method; and F(t) is the external excitation force of the device. The first-order modal natural frequency ω of the system can be solved using computer-aided methods. n And its corresponding mode shapes.

[0030] Adjusting the tension F on the flexible circuit board 柔 Its natural frequency can be adjusted. To avoid resonance in the flexible circuit board, the tension on the flexible circuit board must be monitored and changed in real time so that the external excitation frequency ω(t) is related to its natural frequency ω. n The ratio λ is less than 1, at which point the tension F on the flexible circuit board is less than 1. 柔 The ratio β of the external excitation force F(t) to the damping force of the device decreases, thereby achieving vibration reduction. Alternatively, the system damping ratio can be increased, or the tension F on the flexible circuit board can be reduced. 柔 The ratio β of the external excitation force F(t) to the device decreases, thereby achieving the purpose of vibration reduction.

[0031] The storage device and method for flexible circuit boards provided in this disclosure can achieve the following technical effects:

[0032] This disclosure uses an accelerometer located in the central control unit to sense and monitor the external excitation force F(t) and excitation frequency ω(t) of the system in real time. Simultaneously, this information is transmitted to the flexible circuit board monitoring and tensioning device, which adjusts the tension on the flexible circuit board on the rigid-flexible coupling plate in real time, changing the system's stiffness coefficient so that the external excitation frequency ω(t) is related to its natural frequency ω. n The ratio λ is less than 1. Meanwhile, the device, through a flexible circuit board gathering mechanism, can enhance the vibration isolation and shock resistance of electronic products while simultaneously gathering excess flexible circuit boards.

[0033] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0034] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0035] Figure 1 This is a schematic diagram of a storage device for flexible circuit boards provided in an embodiment of this disclosure;

[0036] Figure 2 This is a schematic diagram of the structure of the retractor provided in the embodiments of this disclosure;

[0037] Figure 3 This is a schematic diagram of the retractor provided in the embodiments of this disclosure;

[0038] Figure 4 This is a schematic diagram of a tension monitoring device provided in an embodiment of this disclosure;

[0039] Figure 5 This is a schematic diagram of another tension monitoring device provided in this embodiment;

[0040] Figure 6 This is a schematic diagram of a tensioning action device provided in an embodiment of this disclosure;

[0041] Figure 7 This is a schematic diagram of another tensioning action device provided in an embodiment of this disclosure;

[0042] Figure 8 This is a schematic diagram of the structure of a winding correction device provided in an embodiment of this disclosure;

[0043] Figure 9 This is a schematic diagram of a method for storing flexible circuit boards provided in an embodiment of this disclosure;

[0044] Figure 10This is a schematic diagram of another method for storing flexible circuit boards provided in an embodiment of this disclosure;

[0045] Figure 11 This is a schematic diagram of another storage device for flexible circuit boards provided in an embodiment of this disclosure;

[0046] Figure 12 This is a schematic diagram of another storage device for flexible circuit boards provided in an embodiment of this disclosure.

[0047] Figure label:

[0048] 10: Tension monitoring device; 11: Tension guide wheel assembly; 111: First guide wheel assembly; 112: Second guide wheel assembly; 12: Tension sampling shaft; 13: Tension sampling wheel assembly; 14: Tension sensor; 15: Monitoring device frame;

[0049] 20: Tensioning action device; 21: Tensioning guide wheel assembly; 22: Tensioning wheel assembly; 221: First tensioning wheel assembly; 222: Second tensioning wheel assembly; 223: Servo motor;

[0050] 30: Winding correction device; 31: Intermediate idler roller; 32: Left idler roller; 33: Right idler roller;

[0051] 40: Retraction device; 41: Retractor; 411: Housing; 4111: Inlet groove; 4112: Outlet groove; 412: Involute groove; 4121: Moving groove; 4122: First receiving groove; 4123: Second receiving groove; 4131: Inlet limiting guide wheel; 4132: Outlet limiting guide wheel; 4133: Directional limiting guide wheel assembly; 414: Moving guide wheel; 415: Linkage rod; 416: Translation mechanism; 417: First inlet guide wheel; 418: Second inlet guide wheel; 419: Flexible plate guide wheel; 42: Angular displacement sensor; 43: Drive motor;

[0052] 50: Accelerometer;

[0053] 60: Central control unit; 61: Central control chip;

[0054] 70: Flexible circuit board. Detailed Implementation

[0055] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0056] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0057] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better describing the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this disclosure according to the specific circumstances.

[0058] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0059] Unless otherwise stated, the term "multiple" means two or more.

[0060] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0061] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0062] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0063] Combination Figure 1-8 As shown, this disclosure provides a storage device for a flexible circuit board 70, which is used to roll the flexible circuit board 70 on the rigid-flexible coupling plate of a ruggedized computer around the storage device of this disclosure, and the portion of the flexible circuit board 70 that is wrapped around the device is connected to other circuits through a connector.

[0064] Specifically, the storage device for the flexible circuit board 70 disclosed herein includes a central control device 60, a tension monitoring device 10, a tensioning action device 20, a winding action device 40, a winding correction device 30, and an acceleration sensor 50.

[0065] The central control device 60 is used to adjust the tension of the flexible circuit board 70.

[0066] The tension monitoring device 10 is electrically connected to the central control device 60 to acquire the tension within the flexible circuit board 70 and transmit the tension signal to the central control device 60.

[0067] The tensioning device 20 is located downstream of the tension monitoring device 10 and is electrically connected to the central control device 60. It is used to tension the flexible circuit board 70.

[0068] The retraction action device 40 includes an angle-sensitive device and a retractor 41 for the flexible circuit board 70 as described above. The angle-sensitive device is used to sense the displacement state of the flexible circuit board 70 within the retractor 41 and feeds back the corresponding signal to the central control device 60. The retraction action device 40 is used to retract the flexible circuit board 70.

[0069] The winding correction device 30 is used to correct the position of the flexible circuit board 70.

[0070] Accelerometer 50 is located on the frame and is used to monitor and detect the external vibration and impact excitation force and excitation frequency of the storage equipment, and feed back to the central control device 60.

[0071] The central control device 60 combines the feedback tension signal and angular displacement signal to determine whether the impact excitation force and excitation frequency exceed the upper limit, and controls the contraction action device 40 and the tensioning action device 20 to perform corresponding actions.

[0072] Understandably, this disclosure uses an accelerometer 50 located in the central control device 60 to sense and monitor the external excitation force F(t) and excitation frequency ω(t) of the system in real time. This information is then transmitted to the flexible circuit board 70 monitoring and tensioning device, which adjusts the tension on the flexible circuit board 70 on the rigid-flexible coupling plate in real time, changing the system's stiffness coefficient so that the ratio λ of the external excitation frequency ω(t) to its natural frequency is less than 1. Simultaneously, the device, through the flexible circuit board 70 retraction device, can retract excess flexible circuit boards 70 while enhancing the vibration isolation and shock resistance performance of electronic products.

[0073] As an example, the tensioning action needs to be performed after the coiling action, while the winding and correction action will be performed throughout the entire process of the equipment operation (including the coiling action and tensioning action of the flexible circuit board 70).

[0074] As another example, the central control device 60 includes a central control chip 61. An acceleration sensor 50 is located on the entire device frame, monitoring the external vibration and impact excitation force F(t) and excitation frequency ω(t) of the entire device in real time, and feeding this information back to the central control chip 61. The central control chip 61 combines the feedback tension signal and angular displacement signal to determine whether the impact excitation force F(t) and excitation frequency ω(t) exceed the device's upper limit, and simultaneously transmits corresponding winding action signals to the winding action device 40 and tensioning action signals to the tensioning action device 20.

[0075] Optionally, the retractor 41 includes a housing 411, a set of limiting guide wheels, a moving guide wheel 414, a linkage 415, a translation mechanism 416, and a drive motor 43.

[0076] The outer edge of the housing 411 is provided with an inlet and an outlet. The interior of the housing 411 is provided with an involute groove 412 for receiving the flexible circuit board 70. The involute groove 412 is provided with a moving groove 4121 and a receiving groove. The moving groove 4121 cooperates with the drive shaft structure of the moving guide wheel 414 to guide the moving guide wheel 414. The receiving groove includes a first receiving groove 4122 and a second receiving groove 4123. The first receiving groove 4122 and the second receiving groove 4123 are respectively installed on both sides of the moving groove 4121. The flexible circuit board 70 enters from the inlet of the first receiving groove 4122, changes direction at the end of the involute groove 412 and enters the second receiving groove 4123, and finally exits from the outlet of the second receiving groove 4123.

[0077] A set of limiting guide wheels is installed at the end of the involute groove 412 to guide the flexible circuit board 70. Specifically, the set of limiting guide wheels includes an inlet limiting guide wheel 4131, an outlet limiting guide wheel 4132, and a reversing limiting guide wheel set 4133. The inlet limiting guide wheel 4131 is installed at the inlet of the first receiving groove 4122 (located at the inlet of the involute groove 412) and is used to cooperate with the moving guide wheel 414 to allow the flexible circuit board 70 to enter the first receiving groove 4122. The outlet limiting guide wheel 4132 is installed at the outlet of the second receiving groove 4123 (located at the inlet of the involute groove 412) and is used to cooperate with the moving guide wheel 414 to allow the flexible circuit board 70 to leave the second receiving groove 4123. The reversing limiting guide wheel set 4133 is installed at the end of the involute groove 412 and is used to cooperate with the moving guide wheel 414 to allow the flexible circuit board 70 to leave the first receiving groove 4122 and enter the second receiving groove 4123.

[0078] A movable guide wheel 414 is movably mounted within the involute groove 412. The first end of a linkage rod 415 is mounted in the middle of the housing 411, and the second end is connected to the movable guide wheel 414, driving the movable guide wheel 414 to move within the involute groove 412. A translation mechanism 416 is mounted on the linkage rod 415, causing the second end of the linkage rod 415 to move along the involute groove 412. A drive motor 43 is connected to the first end of the linkage rod 415, driving the linkage rod 415 to rotate.

[0079] When the retractor 41 winds up the flexible circuit board 70, the drive motor 43 drives the linkage 415 in the retractor 41 to rotate in a first direction. The movable guide wheel 414 mounted on the linkage 415 drives the flexible circuit board 70 to move within the involute groove 412 of the retractor 41 housing 411, simultaneously winding the flexible circuit board 70 within the involute groove 412, thus completing the winding action of the flexible circuit board 70. When the retractor 41 releases the flexible circuit board 70, the drive motor 43 drives the linkage 415 in the retractor 41 to rotate in a second direction opposite to the first direction. The first direction can be counterclockwise, and the second direction can be clockwise.

[0080] Optionally, the angle-sensitive device includes an angular displacement sensor 42, which is used to sense the rotation angle of the linkage 415 and feed it back to the central control device 60 in real time, so as to monitor the rotation displacement of the linkage 415 in real time, and indirectly understand and control the position of the flexible circuit board 70.

[0081] As an example, the angular displacement sensor 42 and the drive motor 43 are located in the middle of the retractor 41 and are connected to the linkage 415.

[0082] Optionally, the tension monitoring device 10 includes a tension guide wheel assembly 11, a tension sampling wheel assembly 13, a tension sensor 14, and a tension transmitter. The tension guide wheel assembly 11 is used to guide the flexible circuit board 70 and includes a first guide wheel assembly 111 and a second guide wheel assembly 112. After being guided by the first guide wheel assembly 111, the flexible circuit board 70 bypasses the tension sampling wheel assembly 13 and is then guided by the second guide wheel assembly 112. The tension sensor 14 is installed on the tension sampling wheel assembly 13 and is used to acquire the tension signal within the flexible circuit board 70. The tension transmitter is used to process the tension signal and send the processed signal to the central control device 60.

[0083] Preferably, the tension sampling wheel assembly 13 includes a tension sampling shaft 12, and multiple tension sampling wheels are connected through the tension sampling shaft 12. As one example, the tension sampling wheel assembly 13 is individually fixed through the tension sampling shaft 12 to form a cantilever beam structure, and the tension sensor 14 is located on the tension sampling shaft 12 to obtain a signal characterizing the tension within the flexible circuit board 70 by sensing the degree of bending deformation of the cantilever beam. As another example, the tension sampling wheel assembly 13 is fixed at both ends through the tension sampling shaft 12, and the tension sensor 14 is located on the surface of the tension sampling wheel assembly 13 to obtain a signal characterizing the tension within the flexible circuit board 70 by sensing the pressure change in the contact area between the flexible circuit board 70 and the tension sampling wheel assembly 13.

[0084] Optionally, the tensioning action device 20 includes a third guide wheel group and a tensioning wheel group. The tensioning wheel group includes a tensioning wheel and an action mechanism. The flexible circuit board 70 passes through the tensioning wheel group after passing through the third guide wheel group.

[0085] Preferably, the tensioning wheel assembly can be divided into a movable tensioning device and a swing tensioning device, depending on the different actuation mechanisms. The movable tensioning device has a reciprocating transmission mechanism, such as a ball screw, at the connection between the tensioning wheel assembly and the frame, which can be driven by the servo motor 223 for precise control; the swing tensioning device is an eccentric tensioning wheel, and its transmission can also be precisely controlled by the servo motor 223. The servo motor 223 is connected to the central control device 60 for control.

[0086] Optionally, the winding correction device 30 includes a roller group, including a middle roller 31, a left roller 32 and a right roller 33. The middle roller 31 is used to support the flexible circuit board 70 to move forward, and the left roller 32 and the right roller 33 are respectively placed at an outward tilt to correct the deviation of the flexible circuit board 70.

[0087] Combination Figure 9 As shown, this disclosure provides a method for storing flexible circuit boards, using the aforementioned storage device for reinforcing flexible circuit boards in computers. The storage method includes:

[0088] S01, the central control device obtains the impact excitation force and excitation frequency;

[0089] S02, the central control device determines whether the impact excitation force and excitation frequency exceed the upper limit;

[0090] S03, when the central control device does not exceed the upper limit, it issues a convergence action command to activate the convergence action device.

[0091] S04, when the tension monitoring device detects that the tension of the flexible circuit board has reached the preset value of the system action, the central control device locks the rotation of the winding device of the retraction action device and causes the tensioning action device to act.

[0092] S05, the central control device adjusts the tension on the flexible circuit board in real time according to the changes in external excitation force and excitation frequency, until the ratio of external excitation frequency to natural frequency is less than 1, and adjusts the tension synchronously according to external changes.

[0093] The system synchronously adjusts tension based on external changes. During the adjustment process, if the tension change on the flexible circuit board exceeds a maximum threshold, the central control device issues a braking command to the drive unit of the tensioning mechanism. The maximum threshold is 70% of the breaking force value at the coupling point between the rigid and flexible plates.

[0094] Combination Figure 10 As shown, optional storage methods also include:

[0095] S06, After the storage device is powered on, the central control device performs a self-test on the storage device;

[0096] S61, when the central control unit receives abnormal signal data from the sub-device sensors, it issues braking and alarm commands, causing each drive device of the storage equipment to brake and issue a warning signal; or,

[0097] S62, when the central control unit does not receive abnormal signal data, it determines whether the data transmitted by the acceleration sensor is abnormal;

[0098] S621 When the central control unit receives data transmitted from the abnormal acceleration sensor, it issues braking and alarm commands, causing each drive device of the storage equipment to brake and issue a warning signal.

[0099] The sub-device sensors include a tension sensor for the tension monitoring device and an angular velocity sensor for the winding action device. The drive units of the storage device include a servo motor for the tensioning wheel assembly of the tensioning action device and a drive motor for the retractor of the winding action device.

[0100] As an example, the entire device operation process is as follows:

[0101] After the device is powered on, it first performs a self-check to see if it receives any abnormal signal data from the sensors of each sub-device. If abnormal signal data is received, the central control device transmits a braking command to the drive device of each actuating device (locking the rotating motor, braking the moving mechanism) and alarms (sounds a buzzer). If no abnormal signal data is received, it checks whether the data transmitted by the acceleration sensor is abnormal. If abnormal signal data is received, the central control device also transmits a braking command to the drive device of each actuating device and alarms (sounds a buzzer). If no abnormal signal data is received, the entire device remains in normal standby mode.

[0102] When an external excitation force is applied, the central control chip determines whether the impact excitation force F(t) and the excitation frequency ω(t) exceed the upper limit of the device. If they do not exceed the upper limit, the central control chip first issues a retraction action command, and the retraction action device starts to move. When the flexible circuit board tension detection device detects that the tension of the flexible circuit board reaches the preset value of the system action, the drive motor receives the command from the central control device and locks the rotation of the retractor. At the same time, the central control chip issues a tensioning action command, and the tensioning action device starts to move. It also adjusts the tension on the flexible circuit board in real time according to the changes in the external excitation force F(t) and the excitation frequency ω(t) until the ratio λ of the external excitation frequency ω(t) to its natural frequency ωn is less than 1, and changes synchronously with the external changes.

[0103] All adjustments to the tensioning mechanism are simultaneously monitored by the tension monitoring device and fed back to the central control chip. If, during the adjustment process, the tension change on the flexible circuit board exceeds the maximum threshold, the system will issue a braking command to the drive device. The system's preset action value can be set to 30% of the breaking force at the coupling point between the rigid plate and the flexible circuit board. The maximum threshold for tension change on the flexible circuit board can be set to 70% of the breaking force at the coupling point between the rigid plate and the flexible circuit board.

[0104] The disclosed method for storing flexible circuit boards uses an accelerometer located in the central control device to sense and monitor the external excitation force F(t) and excitation frequency ω(t) of the system in real time. This data is then transmitted to the flexible circuit board monitoring and tensioning device, which adjusts the tension on the flexible circuit board on the rigid-flexible coupling plate in real time, changing the system's stiffness coefficient so that the external excitation frequency ω(t) is related to its natural frequency ω. n The ratio λ is less than 1. Meanwhile, the device, through a flexible circuit board gathering mechanism, can enhance the vibration isolation and shock resistance of electronic products while simultaneously gathering excess flexible circuit boards.

[0105] Combination Figure 11 As shown, this disclosure provides a storage device 200 for flexible circuit boards, including an acquisition device 201, a determination module 202, a first strategy module 203, and an execution module 204.

[0106] The acquisition device 201 is configured to acquire the impact excitation force and excitation frequency; the determination module 202 is configured to determine whether the impact excitation force and excitation frequency exceed the upper limit; the first strategy module 203 is configured to issue a retraction action command when the upper limit is not exceeded, so as to activate the retraction action device; the execution module 204 is configured to lock the rotation of the retractor of the retraction action device and activate the tensioning action device when the tension monitoring device detects that the tension of the flexible circuit board reaches the preset value of the system action; and to adjust the tension on the flexible circuit board synchronously in real time according to the changes in the external excitation force and excitation frequency until the ratio of the external excitation frequency to the natural frequency is less than 1, and to adjust the tension synchronously according to the external changes.

[0107] Optionally, the storage device 200 for flexible circuit boards also includes a self-test module 205 and a second strategy module 206.

[0108] The self-test module 205 is configured to perform a self-test on the storage device after it is powered on; the second strategy module 206 is also configured to issue a braking command and an alarm command when abnormal signal data from the sub-device sensor is received, causing each drive device of the storage device to brake and issue a warning signal; when no abnormal signal data is received, it determines whether the transmitted data from the acceleration sensor is abnormal; when abnormal transmission data from the acceleration sensor is received, it issues a braking command and an alarm command, causing each drive device of the storage device to brake and issue a warning signal.

[0109] Combination Figure 12 As shown, this disclosure provides a storage device 300 for flexible circuit boards, including a processor 304 and a memory 301. Optionally, the device may further include a communication interface 302 and a bus 303. The processor 304, communication interface 302, and memory 301 can communicate with each other via the bus 303. The communication interface 302 can be used for information transmission. The processor 304 can call logical instructions in the memory 301 to execute the storage method for flexible circuit boards described in the above embodiment.

[0110] Furthermore, the logic instructions in the aforementioned memory 301 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0111] The memory 301, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 304 executes functional applications and data processing by running the program instructions / modules stored in the memory 301, thereby implementing the storage method for flexible circuit boards in the above embodiments.

[0112] The memory 301 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 301 may include high-speed random access memory and may also include non-volatile memory.

[0113] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for housing a flexible circuit board.

[0114] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0115] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0116] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0117] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0118] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed between each other may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to implement this embodiment according to actual needs. In addition, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0119] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0120] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A storage device for flexible circuit boards, characterized in that, A storage device for flexible circuit boards (70) on rigid-flexible coupling plates used in ruggedized computers, the storage device comprising: A central control device (60) is used to adjust the tension of the flexible circuit board (70); Tension monitoring device (10) is electrically connected to the central control device (60) for acquiring the tension in the flexible circuit board (70) and transmitting the tension signal to the central control device (60); The tensioning device (20) is located downstream of the tension monitoring device (10) and electrically connected to the central control device (60) for tensioning the flexible circuit board (70); The retraction device (40) includes an angle-sensitive device and a retractor (41). The retractor (41) includes a housing (411), a limiting guide wheel assembly, a moving guide wheel (414), a linkage (415), a translation mechanism (416), and a drive motor (43). The housing (411) has an involute groove (412) inside, which is used to receive the flexible circuit board (70). The limiting guide wheel assembly is installed at the end of the involute groove (412) to guide the flexible circuit board (70). The moving guide wheel (414) The flexible circuit board (70) is movably installed in the involute groove (412) to cooperate with the limiting guide wheel group, drive the flexible circuit board (70) to move and guide the flexible circuit board (70); the first end of the linkage rod (415) is installed in the middle of the housing (411), and the second end is connected to the moving guide wheel (414) to drive the moving guide wheel (414) to move in the involute groove (412); the translation mechanism (416) is installed on the linkage rod (415) to make the second end of the linkage rod (415) move along the involute groove (412). The wire groove (412) moves; the drive motor (43), connected to the first end of the linkage (415), is used to drive the linkage (415) to rotate; when the retractor (41) coils up the flexible circuit board (70), the drive motor (43) drives the linkage (415) in the retractor (41) to rotate in the first direction, and the moving guide wheel (414) mounted on the linkage (415) drives the flexible circuit board (70) to move in the involute wire groove (412) of the housing (411) of the retractor (41), while coiling up the flexible circuit board (70). Within the involute groove (412), the flexible circuit board (70) is retracted. The angle-sensitive device includes an angular displacement sensor (42), which is used to sense the rotation angle of the linkage (415) and feed it back to the central control device (60) in real time to monitor the rotation displacement of the linkage (415) in real time. The angle-sensitive device is used to sense the displacement state of the flexible circuit board (70) within the retractor (41) and feed the angular displacement signal back to the central control device (60). The retracting device (40) is used to retract the flexible circuit board (70). A winding correction device (30) is used to correct the position of the flexible circuit board (70); An accelerometer (50) is located on the frame and is used to monitor the external vibration and impact excitation force and excitation frequency of the storage equipment and feed them back to the central control device (60). The central control device (60) combines the feedback tension signal and angular displacement signal to determine whether the impact excitation force and excitation frequency exceed the upper limit, and controls the contraction action device (40) and tensioning action device (20) to perform corresponding actions.

2. The storage device according to claim 1, characterized in that, The involute groove (412) is provided with: The movable groove (4121) cooperates with the drive shaft structure of the movable guide wheel (414) to guide the movable guide wheel (414); The receiving groove includes a first receiving groove (4122) and a second receiving groove (4123). The first receiving groove (4122) and the second receiving groove (4123) are respectively installed on both sides of the moving groove (4121). The flexible circuit board (70) enters from the inlet of the first receiving groove (4122), changes direction at the end of the involute groove (412) and enters the second receiving groove (4123), and finally exits from the outlet of the second receiving groove (4123).

3. The storage device according to claim 2, characterized in that, The limiting guide wheel assembly includes: An inlet limiting guide wheel (4131) is installed at the inlet of the first receiving groove (4122) and is used to cooperate with the moving guide wheel (414) to allow the flexible circuit board (70) to enter the first receiving groove (4122); An exit limiting guide wheel (4132) is installed at the outlet of the second receiving groove (4123) and is used to cooperate with the moving guide wheel (414) to make the flexible circuit board (70) leave the second receiving groove (4123); A reversing limit guide wheel assembly (4133) is installed at the end of the involute groove (412); it is used to cooperate with the moving guide wheel (414) to make the flexible circuit board (70) leave the first receiving groove (4122) and enter the second receiving groove (4123).

4. The storage device according to any one of claims 1 to 3, characterized in that, The tension monitoring device (10) includes: Tension guide wheel assembly (11) for guiding flexible circuit board (70), including first guide wheel assembly (111) and second guide wheel assembly (112); Tension sampling wheel group (13), the flexible circuit board (70) is guided by the first guide wheel group (111) and then bypasses the tension sampling wheel group (13) and is guided by the second guide wheel group (112); A tension sensor (14) is installed on the tension sampling wheel assembly (13), and the tension sensor (14) is used to acquire the tension signal inside the flexible circuit board (70); The tension transmitter is used to process the tension signal and send the processed signal to the central control device (60).

5. The storage device according to any one of claims 1 to 3, characterized in that, The tensioning action device (20) includes: Third guide wheel set; The tensioning wheel assembly includes a tensioning wheel and an actuation mechanism. The flexible circuit board (70) passes through the tensioning wheel assembly after passing through the third guide wheel assembly.

6. The storage device according to any one of claims 1 to 3, characterized in that, The winding correction device (30) includes: The roller assembly includes a middle roller (31), a left roller (32) and a right roller (33). The middle roller (31) is used to support the flexible circuit board (70) to move forward. The left roller (32) and the right roller (33) are placed at an angle to the outside to correct the deviation of the flexible circuit board (70).

7. A method for storing flexible circuit boards, characterized in that, Using the storage device for flexible circuit board (70) as described in any one of claims 1 to 6, the storage method includes: Obtain the impact excitation force and excitation frequency; Determine whether the impact excitation force and excitation frequency exceed the upper limit; If the upper limit is not exceeded, a convergence action command is issued to activate the convergence action device (40). When the tension monitoring device (10) detects that the tension of the flexible circuit board (70) reaches the preset value of the system action, the winding device (41) of the retraction action device (40) is locked and the tensioning action device (20) is activated. The tension on the flexible circuit board (70) is adjusted synchronously in real time according to the changes in external excitation force and excitation frequency until the ratio of the external excitation frequency to the first-order modal natural frequency of the vibration system composed of the flexible circuit board (70) and its housing device is less than 1, and the tension is adjusted synchronously according to external changes.

8. The storage method according to claim 7, characterized in that, Also includes: After powering on the storage device, perform a self-test. Upon receiving abnormal signal data from the sub-device sensors, a braking command and an alarm command are issued, causing each drive device of the storage equipment to brake and issue a warning signal; or, If the abnormal signal data is not received, determine whether the transmitted data of the acceleration sensor (50) is abnormal; Upon receiving abnormal data from the acceleration sensor (50), a braking command and an alarm command are issued, causing each drive unit of the storage device to brake and issue a warning signal. The sub-device sensors include a tension sensor for the tension monitoring device and an angular velocity sensor for the convergence action device.

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