Electronic device

Abstract

The application discloses an electronic device, and belongs to the technical field of terminals. The electronic device comprises a flexible screen, a folding support, a first sliding block, and a flexible screen, a first permanent magnet and a first driving assembly arranged on the folding support, wherein the first sliding block is provided with a diamagnetic material; the first sliding block is connected with the first driving assembly, and the first permanent magnet and the first sliding block are located between the folding support and the flexible screen; wherein, in the unfolding process of the folding support, the first driving assembly drives the first sliding block to move to a first area opposite to the first permanent magnet; or, in the folding process of the folding support, the first driving assembly drives the first sliding block to move to a second area not overlapping with the first permanent magnet.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of terminal, and particularly relates to an electronic device. BACKGROUND

[0002] At present, electronic devices with flexible screens are widely used because the screen size can be adjusted. The flexible screen has a certain strength, which may cause the flexible screen to be unable to be tightly closed, i.e., unable to be completely folded. Therefore, a pair of magnets can be arranged below the screen of the electronic device to resist the strength of the flexible screen by the magnetic force between the pair of magnets, so as to ensure that the flexible screen can be tightly and stably closed.

[0003] However, the magnetic field generated by the magnets may attract foreign matters, so that when the flexible screen is in an unfolded state, the foreign matters may be attracted to the area of the flexible screen corresponding to the magnets, and then when the flexible screen is in a folded state, the foreign matters may be clamped between the two opposite screen areas of the flexible screen, so as to possibly scratch the flexible screen or cause the flexible screen to leak liquid, thus reducing the service life of the flexible screen. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide an electronic device which can reduce the magnetism of the permanent magnet below the flexible screen when the flexible screen is in an unfolded state, so as to avoid the flexible screen from attracting paramagnetic foreign matters, and thus the service life of the flexible screen can be improved.

[0005] In a first aspect, the embodiments of the present application provide an electronic device, which comprises a flexible screen, a folding support, a first slider, and a flexible screen, a first permanent magnet and a first driving assembly arranged on the folding support, and the first slider is provided with an anti-magnetic material; the first slider is connected with the first driving assembly, and the first permanent magnet and the first slider are located between the folding support and the flexible screen; wherein, in the unfolding process of the folding support, the first driving assembly drives the first slider to move to a first area opposite to the first permanent magnet; or, in the folding process of the folding support, the first driving assembly drives the first slider to move to a second area which does not overlap with the first permanent magnet.

[0006] In the embodiments of the present application, on the one hand, during the folding process of the folding support, the first driving assembly can drive the first slider to move to the second region which is not overlapped with the first permanent magnet, so that the diamagnetic material in the first slider is located outside or at the edge of the magnetic field of the first permanent magnet, thereby avoiding the diamagnetic material generating repulsion force opposite to the magnetic force of the first permanent magnet under the action of the magnetic field, and further ensuring that the magnetic force of the first permanent magnet on the magnetic piece opposite to the first permanent magnet in the electronic device is greater than the elastic force of the flexible screen, so that the flexible screen can be stably kept in the folded state; on the other hand, during the unfolding process of the folding support, the first driving assembly can drive the first slider to move to the first region opposite to the first permanent magnet, so that the diamagnetic material in the first slider is located at the center of the magnetic field of the first permanent magnet, thereby the diamagnetic material can generate repulsion force opposite to the magnetic force of the first permanent magnet under the action of the magnetic field, and further reducing the total magnetic force of the screen area of the flexible screen corresponding to the first permanent magnet, so that the probability of foreign matter being adsorbed to the screen area can be reduced, and thus the service life of the flexible screen can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 is a structural schematic diagram of an electronic device provided by some embodiments of the present application;

[0008] Figure 2 is a structural schematic diagram of an electronic device provided by some embodiments of the present application;

[0009] Figure 3 is a structural schematic diagram of an electronic device provided by some embodiments of the present application;

[0010] Figure 4 is a structural schematic diagram of an electronic device provided by some embodiments of the present application;

[0011] Figure 5 is a structural schematic diagram of an electronic device provided by some embodiments of the present application;

[0012] Figure 6 is a sectional view along the A-A direction in Figure 2 ;

[0013] Figure 7 is a sectional view along the C-C direction in Figure 3 ;

[0014] Figure 8 is an enlarged schematic view of detail G in Figure 6 ;

[0015] Figure 9 is an enlarged schematic view of detail E in Figure 7 ;

[0016] Figure 10 is an enlarged schematic view of detail D in Figure 2an enlarged schematic view of detail B in

[0017] Figure 11 is an enlarged schematic view of detail D in Figure 3

[0018] Figure 12 is a structural schematic view of a first driving assembly provided in some embodiments of the present application;

[0019] Figure 13 is an enlarged schematic view of detail F in Figure 7

[0020] Figure 14 is an enlarged schematic view of detail H in Figure 6

[0021] is a schematic view of a working process of an electronic device when the electronic device is converted from a folded state to an unfolded state, provided in some embodiments of the present application; Figure 15

[0022] is a schematic view of a working process of an electronic device when the electronic device is converted from an unfolded state to a folded state, provided in some embodiments of the present application; Figure 16

[0023] is a structural schematic view of an electronic device provided in some embodiments of the present application; Figure 17

[0024] is a structural schematic view of an electronic device provided in some embodiments of the present application; Figure 18 wherein,

[0025] the reference signs in Figures 1 to 18

[0026] 100 electronic device, 10 flexible screen, 11 connecting piece, 12 folding support, 121 first frame, 122 second frame, 123 first surface, 124 mounting groove, 13 first permanent magnet, 14 second permanent magnet, 15 first driving assembly, 151 motor, 152 transmission piece, 153 screw rod, 154 guide rod, 155 motor support, 156 bearing, 1521 transmission sliding block, 1522 transmission rod, 16 first sliding block, 17 second surface,

[0027] 18 first area, 19 second area, 20 second sliding block, 1212 first opening, 21 Hall chip, 22 Hall magnet, 23 second driving assembly, 24 third sliding block, 25 mainboard. DETAILED DESCRIPTION

[0028] ​​​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly described. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art are within the scope of the present application.

[0029] The terms and phrases in the specification of the present application are explained as follows.

[0030] Flexible screen: a screen that can be bent and rolled. The flexible screen has been widely used due to its low power consumption and bendable characteristics. The flexible screen can include a flexible substrate and a flexible light emitting element mounted on the flexible substrate.

[0031] For example, the light emitting element can be an organic electroluminescence display (OLED).

[0032] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of a kind and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the objects before and after are in a "or" relationship.

[0033] The electronic device provided by the embodiments of the present application will be described in detail below in combination with the drawings and specific embodiments and application scenarios.

[0034] The electronic device provided by the embodiments of the present application, Figure 1 The structure schematic diagram of the electronic device provided by the embodiments of the present application is shown, as Figure 1 The electronic device 100 can include a flexible screen 10, a folding support 12, a first sliding block 16, and a first permanent magnet 13 and a first driving assembly 15 arranged on the folding support 12, the first sliding block 16 is provided with a diamagnetic material; the first sliding block 16 is connected with the first driving assembly 15, and the first permanent magnet 13 and the first sliding block 16 are located between the folding support 12 and the flexible screen 10.

[0035] In the folding support 12 unfolding process, the first drive assembly 15 drives the first slider 16 to move to the first area 18 opposite to the first permanent magnet 13; or in the folding support 12 folding process, the first drive assembly 15 drives the first slider 16 to move to the second area 19 not overlapping with the first permanent magnet 13.

[0036] It can be understood that the diamagnetic material can also be called the inverse magnetic material, and the diamagnetic material refers to a weak magnetic material. Its relative magnetic susceptibility is negative and very small. The mechanism of diamagnetism is that when the external magnetic field passes through the electron orbit, the electromagnetic induction caused by the acceleration of the orbital electron is simplified as the magnetic field perpendicular to the electron orbit plane. According to the law of Lenz, the magnetic flux caused by the acceleration of the orbital electron is always opposite to the direction of the external magnetic field, so the diamagnetic susceptibility is negative. In short, when the diamagnetic material is in the magnetic field, the diamagnetic material can generate a force opposite to the corresponding magnetic force direction of the magnetic field under the action of the magnetic field, so as to offset part of the magnetic force of the magnetic field, thereby showing the phenomenon of weakening the magnetic force of the magnetic field.

[0037] In some embodiments of the application, the above-mentioned diamagnetic material can include any one of carbon, copper, gold, silver, zinc, etc.

[0038] It should be noted that the function of the first permanent magnet is to exert an attractive force on the magnetic part, such as the second permanent magnet, provided on the folding support when the folding support is in the folded state, so that the folding support drives the flexible screen to stably be in the folded state. It can be understood that the first permanent magnet and the magnetic part are symmetrical with respect to the folding line of the folding support.

[0039] In the embodiments of the application, "opposite to the first permanent magnet" includes directly opposite to the first permanent magnet, or the overlapping area between the first permanent magnet is equal to the first area, or the first slider covers the first permanent magnet; "not overlapping with the first permanent magnet" includes completely not overlapping with the first permanent magnet. The first area is equal to the area of the surface of the first permanent magnet facing the flexible screen.

[0040] Exemplarily, Figure 2 A structural schematic diagram of an electronic device when the folding support 12 is in the unfolded state is shown in FIG. 1. Figure 2 As shown, the first slider 16 covers the first permanent magnet 13, so that the diamagnetic material in the first slider 16 can generate a repulsive force opposite to the magnetic force direction of the first permanent magnet 13 under the action of the magnetic field of the first permanent magnet 13, so that the resultant force of the two forces is smaller than the magnetic force of the first permanent magnet 13, so that the probability of foreign matter being adsorbed to the area of the flexible screen corresponding to the first permanent magnet 13 can be reduced. Figure 3 A structural schematic diagram of an electronic device when the folding support 12 is in the folded state is shown in FIG. 2. Figure 3As shown, the first slider 16 is completely overlapped with the first permanent magnet 13, at this time, the repulsive force generated by the diamagnetic material in the first slider 16 is small, so that the attractive force of the first permanent magnet 13 to the magnetic member is much greater than the magnetic force, so as to ensure that the electronic device can keep the folded state.

[0041] In some embodiments of the present application, the first slider and the first driving assembly can be arranged close to the first permanent magnet.

[0042] In some embodiments of the present application, when the folding support is in the unfolded state, the first permanent magnet is located in the projection area of the first area on the folding support, and the first permanent magnet is located outside the projection area of the second area on the folding support. That is, when the folding support is in the unfolded state, the first permanent magnet is opposite to the first slider, and the diamagnetic material in the first slider can generate a repulsive force opposite to the direction of the magnetic force of the first permanent magnet, so that the area of the flexible screen corresponding to the first permanent magnet is under stress, thereby reducing or avoiding the adsorption of foreign matter, so as to reduce the probability of friction and extrusion of the flexible screen with foreign matter, thereby improving the service life of the flexible screen. When the folding support is in the folded state, there is no overlapping area between the first permanent magnet and the first slider, and the influence of the magnetic field of the first permanent magnet on the diamagnetic material is small, and the repulsive force generated by the diamagnetic material can be ignored, so that the attractive force of the first permanent magnet to the magnetic member can be greater than the elastic force of the flexible screen, so as to keep the electronic device folded.

[0043] As can be seen, in the unfolding process of the folding support of the electronic device, the first driving assembly can drive the first slider to correspond to the first permanent magnet, so as to automatically weaken the magnetic force of the first permanent magnet through the first slider, so that the area of the flexible screen corresponding to the first permanent magnet does not adsorb foreign matter or adsorbs less foreign matter; in this way, when the flexible screen is closed again, foreign matter will not be brought into the gap between the screen areas of the flexible screen corresponding to the first permanent magnet, so as to avoid friction and extrusion of the flexible screen with foreign matter, thereby not only improving the user experience when the folding support is unfolded, but also improving the service life of the flexible screen.

[0044] In some embodiments of the present application, the size of the surface of the first slider facing the flexible screen is greater than or equal to the size of the surface of the first permanent magnet facing the flexible screen.

[0045] In some embodiments of the present application, as shown in Figure 4 The first driving assembly 15 can drive the first slider to move to the first area or the second area in a direction perpendicular to the folding line 03 of the folding support 12, as shown by the arrow in Figure 4 In some embodiments of the present application, as shown in Figure 5As shown, the first driving component 15 can drive the first slider in a direction parallel to the folding line 03 of the folding bracket 12, such as... Figure 5 Move to the first or second area in the direction indicated by the arrow.

[0046] It should be noted that, in Figure 4 In the manner shown, the second region can be Figure 4 The area shown in 19 can also be Figure 4 The region shown in 19'. Similarly, in Figure 5 In the manner shown, the second region can be Figure 5 The area shown in 19 can also be Figure 5 The area shown in 19' is not limited in this application.

[0047] In some embodiments of this application, a mounting groove can be provided on the folding bracket near the first permanent magnet, and the first transmission component can be installed in the mounting groove. This allows the first transmission component to at least partially overlap with the folding bracket in the thickness direction, thereby reducing the overall thickness of the folding screen terminal.

[0048] In some embodiments of this application, the mounting groove may be disposed on a first surface of the folding bracket facing the flexible screen, or on a second surface of the folding bracket facing the flexible screen.

[0049] In some embodiments of this application, Figure 6 For electronic devices along Figure 2 The sectional view shown in the AA direction. Figure 7 For electronic devices along Figure 3 A cross-sectional view along the CC direction as shown; as Figure 6 and Figure 7 As shown, a mounting groove 124 is provided on the first surface 123 of the folding bracket 12 near the first permanent magnet 13, and a first opening 1212 extending to the second surface 17 is provided at the bottom of the mounting groove 124; the second surface 123 is the surface of the folding bracket 12 facing the flexible screen 10, and the first surface 123 is opposite to the second surface 17.

[0050] The first transmission component is disposed in the mounting groove 124 and is connected to the first slider 16 through the first opening 1212.

[0051] Thus, since the mounting groove for mounting the first transmission assembly can be arranged on the first surface of the folding support facing away from the flexible screen, and the first transmission assembly is connected with the first sliding block through the first opening extending from the bottom of the mounting groove to the other surface, i.e., the first transmission assembly and the first sliding block are located on the opposite surfaces of the folding support, and the first transmission assembly at least partially overlaps the folding support in the thickness direction, the overall thickness of the electronic device can be reduced.

[0052] In some embodiments of the present application, as shown in Figure 6 and Figure 7 , the motor support 155 can be fixed at the bottom of the mounting groove 124.

[0053] In some embodiments of the present application, the motor support can be fixed in the mounting groove by screws or glue and the like.

[0054] In some embodiments of the present application, as shown in Figure 6 and Figure 7 , the thickness of the first driving assembly 15 (not including the transmission rod 1522) is less than the depth of the mounting groove 124. Thus, the first driving assembly 15 can be integrated in the folding support 12, which is beneficial for reducing the overall thickness of the electronic device.

[0055] In some embodiments of the present application, Figure 13 is Figure 7 an enlarged schematic view of detail F in Figure 14 is Figure 6 a method schematic view of detail H in Figure 13 and Figure 14 , the transmission sliding block 1521 extends out of the first opening 1212, the transmission rod 1522 is fixedly connected with the transmission sliding block 1521, and the transmission rod 1522 is located between the first surface 123 and the flexible screen 10.

[0056] Thus, on the one hand, since the first transmission assembly is arranged in the mounting groove, i.e., the first transmission assembly at least partially overlaps the folding support in the thickness direction, the overall thickness of the electronic device can be reduced; on the other hand, since the mounting groove is arranged on the surface of the folding support facing away from the flexible screen, the influence of foreign matters between components in the transmission assembly on the flexible screen can be reduced, and the service life of the flexible screen can be improved.

[0057] In some embodiments of the present application, the first permanent magnet can be flush with the second surface of the folding support facing the flexible screen, or can be lower than the second surface.

[0058] For example, Figure 8 is Figure 6 an enlarged schematic view of detail G in Figure 9 is Figure 7 an enlarged schematic view of detail E in. AsFigure 8 and Figure 9 As shown, the surface of the first permanent magnet 13 facing the flexible screen 10 is lower than the first surface.

[0059] In some embodiments of this application, such as Figure 1 As shown, the flexible screen 10 is connected to the folding bracket 12 via a connector 11; wherein the thickness of the first slider 16 is less than the thickness of the connector 11.

[0060] It is understandable that the distance between the flexible screen and the folding bracket is greater than the thickness of the first slider.

[0061] Thus, since the thickness of the first slider is less than the thickness of the connector, friction between the first slider and the flexible screen during movement can be avoided, thereby improving the lifespan of the flexible screen. Furthermore, because the thickness of the first slider is less than the thickness of the connector, adding the first slider does not increase the thickness of the electronic device, thus contributing to the overall thinning of the electronic device.

[0062] In some embodiments of this application, the connector can be double-sided tape or glue, or any element that can achieve a stable and tight connection between the folding bracket and the flexible screen.

[0063] In some embodiments of this application, such as Figure 1 As shown, the folding bracket 12 may include a first frame 121, a second frame 122, and a hinge assembly disposed between the first frame 121 and the second frame 122. Figure 1 (Not shown in the image), wherein both the first frame 121 and the second frame 122 are connected to the hinge assembly. Thus, the folding bracket 12 can be unfolded or folded via the hinge assembly. For the specific structure of the hinge assembly, please refer to related technologies.

[0064] The first permanent magnet can be embedded in the surface of the first frame facing the flexible screen, and a magnetic component corresponding to the first permanent magnet can be disposed on the surface of the second frame facing the flexible screen. The first driving assembly is disposed on the first frame, and the first slider is located between the flexible screen and the first frame. Thus, when the foldable bracket is in the folded state, the first frame and the second frame can fit tightly together under the attraction of the first permanent magnet to the magnetic component, thereby making the electronic device stably folded.

[0065] In some embodiments of this application, during the folding or unfolding of the folding bracket, the synchronous swing arm in the hinge assembly can slide along the length direction of the hinge assembly.

[0066] In some embodiments of this application, in addition to using the first driving component to drive the first slider to move, the sliding of the aforementioned synchronous swing arm can also be used to drive the first slider to move to the first region or the second region.

[0067] In the electronic device provided by the embodiments of the present application, on the one hand, during the folding process of the folding support, the first driving assembly can drive the first slider to move to the second area that is not overlapped with the first permanent magnet, so that the diamagnetic material in the first slider is located outside or at the edge of the magnetic field of the first permanent magnet, thereby avoiding the diamagnetic material generating repulsion force opposite to the magnetic force of the first permanent magnet under the action of the magnetic field, and further ensuring that the magnetic force of the first permanent magnet on the magnetic part in the electronic device opposite to the first permanent magnet is greater than the elastic force of the flexible screen, so that the flexible screen can stably keep the folded state; on the other hand, during the unfolding process of the folding support, the first driving assembly can drive the first slider to move to the first area opposite to the first permanent magnet, so that the diamagnetic material in the first slider is located at the center of the magnetic field of the first permanent magnet, thereby the diamagnetic material can generate repulsion force opposite to the magnetic force of the first permanent magnet under the action of the magnetic field, and further reducing the total magnetic force of the screen area of the flexible screen corresponding to the first permanent magnet, so that the probability of foreign matter being adsorbed to the screen area can be reduced, and thus the service life of the flexible screen can be improved.

[0068] In some embodiments of the present application, Figure 10 For Figure 2 the enlarged schematic view of detail B in FIG. 1B, Figure 11 For Figure 3 the enlarged schematic view of detail D in FIG. 1B, as shown in Figure 10 and Figure 11 The electronic device 100 can further include a second slider 20 fixedly connected with the first slider 16, and the second slider 20 is provided with paramagnetic material. As shown in Figure 10 When the first slider 16 is located in the first area 18, the second slider 20 is not overlapped with the first permanent magnet 13;

[0069] Or, as shown in Figure 11 When the first slider 16 is located in the second area 19, the second slider 20 is opposite to the first permanent magnet 13.

[0070] In some embodiments of the present application, when the second slider is opposite to the first permanent magnet, the second slider 20 can be located in the first area; when the second slider 20 is not overlapped with the first permanent magnet 13, the second slider 20 can be located in an area other than the first area.

[0071] It can be understood that paramagnetic material is a kind of material with paramagnetism, which is classified according to the size and sign of the magnetic susceptibility when the magnet is magnetized. Some substances generate magnetic intensity in the same direction as the external magnetic field after being affected by the external magnetic field, and the magnetic susceptibility is greater than zero but very small. Such material is called paramagnetic material. That is, by setting the second slider with paramagnetic material, when the second slider is opposite to the first permanent magnet, the paramagnetic material generates force in the same direction as the magnetic force of the first permanent magnet, thereby showing the phenomenon of strengthening the magnetic force of the first permanent magnet.

[0072] It can be understood that, when the folding support is in the unfolded state, the first slider is located in the first area, so that the first slider corresponds to the first permanent magnet, and the repulsive force generated by the diamagnetic material weakens the magnetic force of the first permanent magnet; when the folding support is in the folded state, the second slider is located in the first area, so that the second slider corresponds to the first permanent magnet, and the paramagnetic material in the second slider generates a force in the same direction as the magnetic force of the first permanent magnet under the action of the magnetic field of the first permanent magnet. The force is greater than the magnetic force of the first permanent magnet after superposition with the magnetic force of the first permanent magnet, so as to equivalent to enhance the magnetic force of the first permanent magnet. In this way, during the folding process of the folding support of the electronic device, the second slider is driven to correspond to the first permanent magnet by the first driving assembly, so that the folding support receives an attractive force greater than the magnetic force of the first permanent magnet, thereby avoiding the electronic device from being opened under the action of its own elastic force, and thus the folding reliability of the electronic device can be improved.

[0073] It can be understood that the first driving assembly can simultaneously drive the first slider and the first slider to move, so as to change the slider corresponding to the first permanent magnet. In this way, the number of parts in the electronic device can be reduced, and the internal space and power consumption of the electronic device can be saved.

[0074] In this way, when the folding support is in the folded state, the second slider corresponds to the first permanent magnet, so that the attractive force received by the magnetic member arranged with the first permanent magnet in the folding support includes the magnetic force of the first permanent magnet and the force generated by the paramagnetic material, i.e. the resultant force received by the magnetic member is greater than the magnetic force of the first permanent magnet, so as to ensure that the flexible screen can be more reliably in the folded state.

[0075] Further, the magnetic field strength of the permanent magnet will decrease in a low-temperature environment, thereby causing the magnetic force to decrease. By arranging the first slider including the paramagnetic material, the paramagnetic material can generate a force in the same direction as the magnetic force of the permanent magnet. In this way, even if the electronic device is in an environment with a relatively low temperature, the force generated by the paramagnetic material can compensate for the loss of the magnetic force of the first permanent magnet due to the decrease in temperature. In this way, the electronic device can be stably in the folded state in a low-temperature environment, thereby improving the folding reliability and environmental adaptability of the electronic device.

[0076] The structure of the first driving assembly will be described below.

[0077] In some embodiments of the present application, as shown in Figure 12 The first driving assembly 15 can include a motor 151, a transmission member 152, and parallelly arranged screw rods 153 and guide rods 154. The screw rods 153 are connected with the motor 151, the transmission member 152 is sleeved on the screw rods 153 and the guide rods 154, and the transmission member 152 is threadedly connected with the screw rods 153. The first slider 16 is connected with the free end of the transmission member 152.

[0078] In the unfolding process of the folding support 12, the motor 151 drives the screw 153 to drive the transmission member 152 to move along the guide rod 154 in a first direction to drive the first sliding block 16 to move to the first area 18; or in the folding process of the folding support 12, the motor 151 drives the screw 153 to drive the transmission member 152 to move along the guide rod 154 in a second direction to drive the first sliding block 16 to move to the second area 19.

[0079] The first direction is opposite to the second direction. For example, the first direction is a clockwise direction, and the second direction is an anticlockwise direction; or the first direction is an anticlockwise direction, and the second direction is a clockwise direction.

[0080] In some embodiments of the present application, the first direction can be a direction from the second area to the first area, and the second direction can be a direction from the first area to the second area.

[0081] It can be understood that the rotation directions of the motor are opposite in the folding or unfolding process of the folding support.

[0082] In some embodiments of the present application, the screw can be connected with the output shaft of the motor.

[0083] In some embodiments of the present application, the screw can be connected with the output shaft of the motor through a coupling.

[0084] In some embodiments of the present application, the guide rod is used to limit the movement track of the transmission member.

[0085] In some embodiments of the present application, the motor drives the screw to rotate, and the sliding block is threadedly connected with the screw, so that the transmission motor can move along the guide rod under the driving of the screw.

[0086] Therefore, the position of the first sliding block can be stably and accurately adjusted by the motor, the screw, the guide rod and the transmission member, because the transmission mode of the motor, the screw, the guide rod and the transmission member has the characteristics of stability and accuracy.

[0087] In some embodiments of the present application, the folding support 12 can be used for a folding bed. Figure 2 and Figure 12 As shown in FIGS. 1, 2 and 3, the transmission member 152 can include a transmission sliding block 1521 and a transmission rod 1522, the first end of the transmission rod 1522 being connected with the transmission sliding block 1521; wherein the transmission sliding block 1521 is sleeved on the guide rod and the screw, the first end of the transmission rod 1522 being connected with the transmission sliding block 1521, and the second end of the transmission rod 1522 being connected with the first sliding block.

[0088] In some embodiments of the present application, the transmission sliding block is threadedly connected with the screw.

[0089] In some embodiments of the present application, the transmission slider moves along the screw rod back and forth under the restriction of the guide rod by the thread on the screw rod.

[0090] In some embodiments of the present application, the motor is a main driving device and can provide a rotating force.

[0091] In some embodiments of the present application, the first end of the transmission rod is connected with the transmission slider through a first fixing member, which can be a screw, a bolt or a welding point.

[0092] In some embodiments of the present application, a through hole is arranged on the transmission slider for the guide rod to pass through, and the size of the through hole is greater than the diameter of the guide rod.

[0093] In some embodiments of the present application, the second end of the transmission rod can be connected with the first slider away from the surface of the flexible screen.

[0094] In some embodiments of the present application, the sum of the thicknesses of the transmission rod and the first slider is less than the thickness of the connecting member. In this way, since the sum of the thicknesses of the transmission rod and the first slider is less than the thickness of the connecting member, it can be ensured that the transmission rod and the first slider are both combined between the flexible screen and the electronic device, and thus the overall thickness of the electronic device can be reduced.

[0095] In this way, since the transmission slider is threadedly connected with the screw rod and the first slider is connected with the transmission slider through the transmission rod, the movement distance of the first slider can be accurately controlled through the cooperation of the transmission slider and the screw rod, and thus the relative position between the first slider and the first permanent magnet can be accurately controlled, and the magnetic force of the first permanent magnet can be enhanced or weakened by the anti-magnetic material in the first slider according to requirements.

[0096] In some embodiments of the present application, as shown in Figure 12 the first driving assembly 15 can further include a motor bracket 155 and two bearings 156; the motor 151 and the two bearings 156 are arranged on the motor bracket 155, the two bearings 156 are rotationally connected with the screw rod 153, and the two bearings 156 are fixedly connected with the guide rod 154; wherein the motor bracket 155 is connected with the folding support 12.

[0097] In some embodiments of the present application, the included angle between the axis of the bearing and the axis of the output shaft of the motor is less than or equal to a preset angle.

[0098] In some embodiments of the present application, the motor bracket can be arranged on the folding support.

[0099] In some embodiments of the present application, the outer ring of the bearing is fixed on the motor bracket, and the inner ring of the bearing is fixedly connected with the screw rod. In this way, the friction between the screw rod and the motor bracket when the screw rod rotates can be reduced.

[0100] It is understandable that the motor bracket provides support for the motor, bearings, screws, guide rods, etc.

[0101] In some embodiments of this application, when the first region is Figure 5 The area shown in Figure 18, the second area is Figure 5 When the area shown in 19' is in the folded state, then the folding bracket is in the folded state, as shown in the image. Figure 13 As shown: the distance between the transmission slider 1521 and the bearing 156 near the second region is d1; when the folding bracket is in the folded state, as... Figure 14 As shown: the distance between the transmission slider 1521 and the bearing 156 near the second region is d2. It can be seen that d1 is greater than d2.

[0102] In this way, since the guide rod and the screw can be supported by two bearings, not only can the friction force on the screw be reduced, but the guiding accuracy of the guide rod can also be improved, thereby enabling the movement of the first slider to be realized more accurately.

[0103] In some embodiments of this application, the drive signal for the motor is any one of the following: triggered by the folding angle of the flexible screen, or triggered by a Hall signal.

[0104] In some embodiments of this application, an angle sensor can be provided in the folding bracket to detect the folding angle of the flexible screen. When the angle sensor detects that the folding angle of the flexible screen is greater than or equal to an angle threshold, the motor can drive the first slider to move to a first region; when the angle sensor detects that the folding angle of the flexible screen is less than the angle threshold, the motor can drive the first slider to move to a second region. The aforementioned angle threshold can be determined according to actual usage requirements.

[0105] In some embodiments of this application, the angle sensor can be connected to the motherboard of the electronic device, i.e., the main circuit board, and the motherboard is connected to the motor. That is, the angle sensor transmits the measured angle value to the motherboard, and the motherboard controls the working state of the motor based on the angle value.

[0106] In some embodiments of this application, such as Figure 1 As shown, the electronic device 100 may further include a Hall chip 21 and a Hall magnet 22 symmetrically arranged on the folding bracket 12, the Hall chip 21 and the Hall magnet 22 being symmetrical with respect to the folding line of the folding bracket 12. The Hall chip 21 is connected to the first drive assembly.

[0107] In the process of unfolding the folding support 12, the Hall chip 21 outputs a first Hall signal, and the first driving assembly 15 drives the first sliding block 16 to move to the first region according to the first Hall signal; or in the process of folding the folding support 12, the Hall chip 21 outputs a second Hall signal, and the first driving assembly 15 drives the first sliding block 16 to move to the second region according to the second Hall signal.

[0108] As shown in some embodiments of the present application, Figure 1 Further, the Hall chip is connected with the motor 151 through the mainboard.

[0109] It can be understood that when the folding support is in the folded state, the Hall chip and the Hall magnet are located opposite to each other.

[0110] In some embodiments of the present application, in the process of unfolding the folding support, the distance between the Hall magnet and the Hall chip increases, so that the Hall chip generates a magnetic field change and outputs a first Hall signal, so that the motor drives the screw to rotate in a first direction, thereby driving the transmission sliding block to move to the first region, until the first sliding block moves to the first region, so that the first sliding block overlaps with the first permanent magnet, and the magnetic force is weakened, and foreign matters are not adsorbed.

[0111] Similarly, in the process of folding the folding support, the distance between the Hall magnet and the Hall chip decreases, so that the Hall chip generates a magnetic field change and outputs a second Hall signal, so that the motor drives the screw to rotate in a second direction, thereby driving the transmission sliding block to move to the second region, until the first sliding block moves to the second region, at this time, since the first sliding block does not overlap with the first permanent magnet, the attraction of the first permanent magnet to the first ferromagnetic body is greater than the elastic force of the flexible screen, so that the flexible screen remains folded.

[0112] In some embodiments of the present application, the first Hall signal and the second Hall signal are different.

[0113] In some embodiments of the present application, the first Hall signal and the second Hall signal can be a Hall current or a Hall voltage.

[0114] The working process of the electronic device provided by the embodiments of the present application will be described below taking an electronic device including a first sliding block and a second sliding block as an example.

[0115] Exemplarily, assuming that the folding support is converted from the folded state to the unfolded state, then, as shown in 11, the first sliding block 16 is located in the second region 19, so that when the user unfolds the folding support, as shown in 12, the first sliding block 16 is driven to move to the first region 18, and the second sliding block 17 is driven to move to the second region 19. Figure 16As shown, the electronic device is transformed from the unfolded state to the folded state, so the distance between the Hall magnet and the Hall chip increases, the magnetic force exerted by the Hall magnet on the Hall chip becomes smaller, so the Hall chip generates a first current change; the Hall chip outputs a first Hall signal according to the first current change, so that the motor drives the screw rod to rotate in the third direction, so that the screw rod drives the first slider and the second slider to move in the first direction, so that the transmission rod drives the first slider and the second slider to move to the first area, until the first slider and the second slider are overlapped with the first permanent magnet, and the first permanent magnet is located in the first area, and the first permanent magnet is located in the first area. Figure 10 As shown, the first slider 16 moves to the first area 18, that is, the first slider is overlapped with the first permanent magnet, at this time the force received by the area of the flexible screen corresponding to the first permanent magnet includes: the magnetic force of the first permanent magnet, and the force generated by the diamagnetic material and the direction opposite to the magnetic force, that is, the resultant force received by the area of the flexible screen corresponding to the first permanent magnet is smaller than the magnetic force of the first permanent magnet, so that the ability to adsorb foreign matter becomes weak.

[0116] Exemplarily, assuming that the folding support is transformed from the unfolded state to the folded state, as shown in 10, the first slider 16 is located in the first area 18, so that when the user unfolds the folding support, as shown in 11, the first slider 16 is located in the second area 19, that is, the first slider is overlapped with the second permanent magnet, at this time the force received by the area of the flexible screen corresponding to the second permanent magnet includes: the magnetic force of the second permanent magnet, and the force generated by the paramagnetic material in the second slider and the direction opposite to the magnetic force, that is, the resultant force received by the area of the flexible screen corresponding to the second permanent magnet is smaller than the magnetic force of the second permanent magnet, so that the ability to adsorb foreign matter becomes weak. Figure 15 As shown, the folding support is transformed from the unfolded state to the folded state, so the distance between the Hall magnet and the Hall chip decreases, the magnetic force exerted by the Hall magnet on the Hall chip becomes stronger, so the Hall chip generates a second current change; the Hall chip outputs a second Hall signal according to the second current change, the motor drives the screw rod to rotate in the fourth direction, the screw rod drives the slider to move in the second direction, so that the transmission rod drives the first slider and the second slider to move to the second area, until the second slider is overlapped with the first permanent magnet, at this time the magnetic force of the first permanent magnet and the force generated by the paramagnetic material in the second slider have the same direction, so that the magnetic force received by the magnetic part corresponding to the first permanent magnet in the electronic device is greater than the magnetic force of the first permanent magnet, so that the electronic device can be stably kept in the folded state.

[0117] Therefore, since the Hall signal output by the Hall chip is related to the folding angle of the flexible screen, the first driving assembly can be accurately controlled through the cooperation of the Hall chip and the Hall magnet, so that the accuracy of moving the first slider can be improved.

[0118] In some embodiments of the present application, as shown in Figure 17 As shown, the electronic device 100 further comprises a second permanent magnet 14, a second driving assembly 23 and a third slider 24 disposed on the folding support 12, and the third slider 24 is provided with diamagnetic material;

[0119] The second permanent magnet 14 and the first permanent magnet 13 are symmetrical relative to the folding line of the folding support 12, the third slider 24 is connected with the second driving assembly 23, and the first permanent magnet 13 and the third slider 24 are located between the folding support 12 and the flexible screen 10;

[0120] In the unfolding process of the folding support 12, the second driving assembly 23 drives the third sliding block 24 to move to a third region opposite to the second permanent magnet 14; or in the folding process of the folding support 12, the second driving assembly 23 drives the third sliding block 24 to move to a fourth region not overlapping with the second permanent magnet 14.

[0121] In some embodiments of the present application, the third sliding block and the second driving assembly can be arranged close to the second permanent magnet.

[0122] For the description of the second driving assembly, refer to the above description of the first driving assembly in the above embodiments.

[0123] It can be understood that when the first driving assembly, the first sliding block and the second sliding block are arranged on the first frame of the folding support, the second driving assembly can be arranged on the second frame of the folding support.

[0124] In some embodiments of the present application, the driving signal source of the second driving assembly is the same as the driving signal source of the first driving assembly.

[0125] Exemplarily, the second driving assembly can also be connected with the Hall chip. In this way, the first driving assembly and the second driving assembly can be controlled to work simultaneously through the Hall signal output by the Hall chip.

[0126] In some embodiments of the present application, the electronic device can further include a fourth sliding block provided with paramagnetic material, and the fourth sliding block is fixedly connected with the third sliding block. For the other description of the fourth sliding block, refer to the above description of the second sliding block in the above embodiments, and the description will not be repeated here.

[0127] In some embodiments of the present application, the number of driving assemblies and the number of sliding blocks in the electronic device are determined according to the number of permanent magnets in the electronic device for stably keeping the electronic device in the folded state.

[0128] Exemplarily, as shown in FIG. 1B, the first frame 121 is provided with the first permanent magnet 13 and the third permanent magnet 26 in the region away from the folding line, and then the first permanent magnet 13 and the third permanent magnet 26 correspond to one driving assembly, one sliding block provided with diamagnetic material and one sliding block provided with paramagnetic material respectively. Figure 18

[0129] Further, assuming that the second frame 122 is also provided with two permanent magnets in the region away from the folding line, then one driving assembly, one sliding block provided with diamagnetic material and one sliding block provided with paramagnetic material are arranged in the electronic device for each permanent magnet in the two permanent magnets.

[0130] ​Thus, when the electronic device is further provided with a second permanent magnet used in cooperation with the first permanent magnet, by arranging the second driving assembly, the third slider provided with the anti-magnetic material, on the one hand, during folding of the folding support, the second driving assembly can drive the third slider to move to the fourth area not overlapping with the second permanent magnet, so that the anti-magnetic material in the third slider is located outside or at the edge of the magnetic field of the second permanent magnet, thereby avoiding the anti-magnetic material generating repulsion opposite to the magnetic force of the second permanent magnet under the action of the magnetic field, and further ensuring that the magnetic force between the second permanent magnet and the first permanent magnet is greater than the elastic force of the electronic device, so that the electronic device can be stably kept in the folded state; on the other hand, during unfolding of the folding support, the second driving assembly can drive the third slider to move to the third area opposite to the second permanent magnet, so that the anti-magnetic material in the third slider is located in the center of the magnetic field of the second permanent magnet, thereby the anti-magnetic material can generate repulsion opposite to the magnetic force of the second permanent magnet under the action of the magnetic field, and further reducing the total magnetic force of the flexible screen corresponding to the screen area of the first permanent magnet, so that the probability of foreign matter being adsorbed to the screen area can be reduced, and thus the service life of the flexible screen can be improved.

[0131] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, such that processes, methods, articles, or apparatuses that comprise a list of elements are not limited to those elements, but can also include other elements not expressly listed, or inherent to such processes, methods, articles, or apparatuses. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order, for example, the described methods can be performed in an order different from that described, and various steps can be added, omitted, or combined. In addition, features described with reference to certain examples can be combined in other examples.

[0132] Through the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned example methods can be realized by means of software and a necessary general hardware platform, and of course, can also be realized by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a computer software product in essence or in the form of a part that contributes to the prior art, which is stored in a storage medium (such as a ROM / RAM, a magnetic disk, or an optical disk) and includes a plurality of instructions for causing a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application.

[0133] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative and not restrictive. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. An electronic device, comprising: The electronic device comprises a flexible screen, a folding support, a first slider, and a flexible screen, a first permanent magnet and a first driving assembly arranged on the folding support, and the first slider is provided with a diamagnetic material; The first slider is connected with the first driving assembly, and the first permanent magnet and the first slider are located between the folding support and the flexible screen; The first driving assembly comprises a motor, a transmission member, and a parallel arranged screw rod and a guide rod; The screw rod is connected with the motor, the transmission member is sleeved on the screw rod and the guide rod, one end of the transmission member is threadedly connected with the screw rod, and the first slider is connected with the transmission member; In the process of unfolding the folding support, the first driving assembly drives the first slider to move to a first area opposite to the first permanent magnet; or in the process of folding the folding support, the first driving assembly drives the first slider to move to a second area not overlapping with the first permanent magnet; In the process of unfolding the folding support, the motor drives the transmission member to move along the guide rod in a first direction through the screw rod, so as to drive the first slider to move to the first area; Or, in the process of folding the folding support, the motor drives the transmission member to move along the guide rod in a second direction through the screw rod, so as to drive the first slider to move to the second area; The first direction is opposite to the second direction. The electronic device further comprises a second slider fixedly connected with the first slider, and the second slider is provided with paramagnetic material; 2. The electronic device of claim 1, wherein, When the first slider is located in the first area, the second slider does not overlap with the first permanent magnet; Or, when the first slider is located in the second area, the second slider is opposite to the first permanent magnet. The flexible screen is connected with the folding support through a connecting piece; 3. The electronic device of any of claims 1 to, wherein, The thickness of the first slider is less than the thickness of the connecting piece. The transmission member comprises a transmission slider and a transmission rod; 4. The electronic device of claim 1, wherein, The transmission slider is sleeved on the guide rod and the screw rod, the first end of the transmission rod is connected with the transmission slider, and the second end of the transmission rod is connected with the first slider. The transmission rod is connected with the surface of the first slider close to the flexible screen; 5. The electronic device of claim 4, wherein, The sum of the thicknesses of the transmission rod and the first slider is less than the thickness of the connecting piece. The first driving assembly further comprises a motor support and two bearings; 6. The electronic device of claim 1, wherein, The motor and the two bearings are arranged on the motor support, the two bearings are rotationally connected with the screw rod, and the two bearings are fixedly connected with the guide rod; The motor support is connected with the folding support. The first surface of the folding support is provided with a mounting groove close to the area of the first permanent magnet, and the bottom of the mounting groove is provided with a first opening extending to the second surface of the folding support, the second surface is the surface of the folding support facing the flexible screen, and the second surface is opposite to the first surface; 7. The electronic device of any of claims 1-6, wherein, ​ The first driving assembly is arranged in the mounting groove and connected with the first slider through the first opening.

8. The electronic device of any of claims 1-6, wherein, The electronic device further comprises a Hall chip and a Hall magnet arranged on the folding support, the Hall chip and the Hall magnet are symmetrical relative to a folding line of the folding support, and the Hall chip is connected with the first driving assembly. During unfolding of the folding support, the Hall chip outputs a first Hall signal, and the first driving assembly drives the first slider to move to the first region according to the first Hall signal; or During folding of the folding support, the Hall chip outputs a second Hall signal, and the first driving assembly drives the first slider to move to the second region according to the second Hall signal.

9. The electronic device of any of claims 1-6, wherein, The electronic device further comprises a second permanent magnet, a second driving assembly and a third slider arranged on the folding support, and the third slider is provided with diamagnetic material. The second permanent magnet and the first permanent magnet are symmetrical relative to a folding line of the folding support, the third slider is connected with the second driving assembly, and the first permanent magnet and the third slider are located between the folding support and the flexible screen. During unfolding of the folding support, the second driving assembly drives the third slider to move to a third region opposite to the second permanent magnet; or During folding of the folding support, the second driving assembly drives the third slider to move to a fourth region not overlapping with the second permanent magnet.

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