Electronic devices

Abstract

The present application provides an electronic device, including a first folding body, a second folding body, a first magnetic component, a second magnetic component and a driving mechanism; the first folding body can be folded and unfolded relative to the second folding body, the first magnetic component and the driving mechanism are respectively installed on the first folding body, and the second magnetic component is installed on the second folding body; the driving mechanism includes a driving module and an amplifying module, and the driving module is connected to the first magnetic component through the amplifying module; the driving module drives the amplifying module, and then drives the first magnetic component to move, so that the first magnetic component and the second magnetic component are not attracted to each other, and the first folding body can be unfolded relative to the second folding body, wherein the amplifying module is used to amplify the displacement generated by the driving module. In this embodiment, the driving source for driving the electronic device to unfold is the driving module, and the driving module relies on its own displacement change to drive the electronic device to unfold, and the noise generated by the electronic device during the unfolding process is small.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to an electronic equipment. Background Art

[0002] With the advancement of technology, users have higher and higher demands on the functions of electronic devices. In order to pursue a large-screen display experience and the convenience of carrying, foldable electronic devices are chosen by more and more users.

[0003] In the related art, a foldable electronic device includes a first foldable body and a second foldable body, and the first foldable body and the second foldable body switch between an unfolded state and a folded state. The two foldable bodies are usually firmly folded by magnetic force, so that it is more laborious for a user to open the two foldable bodies. In order to solve this problem, a driving mechanism for driving the two foldable bodies to unfold is added to the existing foldable electronic device, and the driving source of the driving mechanism is usually a motor.

[0004] In the process of implementing the present application, the inventors found that there are at least the following problems in the related art: the motor produces a lot of noise during the driving process, which affects the user experience. Summary of the invention

[0005] An embodiment of the present application provides an electronic device to solve the technical problem in the related art that a motor generates high noise when driving two folding bodies in a folding electronic device to open.

[0006] In order to solve the above technical problems, this application is implemented as follows:

[0007] An embodiment of the present application provides an electronic device, the electronic device comprising: a first folding body, a second folding body, a first magnetic component, a second magnetic component and a driving mechanism;

[0008] The first folding body can be folded and unfolded relative to the second folding body, the first magnetic component and the driving mechanism are respectively installed on the first folding body, and the second magnetic component is installed on the second folding body;

[0009] The driving mechanism comprises a driving module and an amplifying module, and the driving module is connected to the first magnetic component through the amplifying module;

[0010] The driving module drives the amplifying module, thereby driving the first magnetic component to move so that the first magnetic component and the second magnetic component are not attracted to each other, and the first folding body can be unfolded relative to the second folding body, wherein the amplifying module is used to amplify the displacement generated by the driving module.

[0011] The electronic device provided by the embodiment of the present application has the following advantages:

[0012] In the embodiment of the present application, the electronic device includes a first folding body, a second folding body, a first magnetic component, a second magnetic component and a driving mechanism; the first folding body can be folded and unfolded relative to the second folding body, the first magnetic component and the driving mechanism are respectively installed on the first folding body, and the second magnetic component is installed on the second folding body; the driving mechanism includes a driving module and an amplifying module, and the driving module is connected to the first magnetic component through the amplifying module; in practice, when the first folding body can be folded relative to the second folding body, the first magnetic component and the second magnetic component are attracted to each other, and the driving module can drive the amplifying module to drive the first magnetic component to move, so that the first magnetic component and the second magnetic component are not attracted to each other, and the first folding body can be unfolded relative to the second folding body, wherein the amplifying module is used to amplify the displacement generated by the driving module. It can be seen that the driving source for driving the electronic device to unfold in this embodiment is the driving module, and the driving module relies on its own displacement change to drive the electronic device to unfold, and the noise generated by the electronic device during the unfolding process is small, which improves the user experience, and because the amplifying module can amplify the displacement generated by the driving module, so that the first magnetic component can move to the position where the electronic device is unfolded, the reliability of the unfolding of the electronic device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 One of the schematic diagrams showing an electronic device provided in an embodiment of the present application;

[0014] Figure 2 A second schematic diagram of an electronic device provided in an embodiment of the present application, wherein the amplification module is a movable pulley group;

[0015] Figure 3 A third schematic diagram of an electronic device provided in an embodiment of the present application, wherein the amplification module is a movable pulley block;

[0016] Figure 4 A schematic diagram showing a first folding body of an electronic device provided in an embodiment of the present application, wherein the magnifying module is a scissors mechanism.

[0017] Reference numerals:

[0018] 10: first folding body; 20: second folding body; 30: first magnetic assembly; 31: first magnetic member; 32: second magnetic member; 40: second magnetic assembly; 41: third magnetic member; 42: fourth magnetic member; 50: trigger module;

[0019] 60: driving mechanism; 61: driving module; 611: shape memory alloy wire; 612: pulley; 613: fixed axis; 62: amplification module; 621: movable pulley; 622: pull rope; 623: first rotating axis; 63: reset module; 631: elastic member; 624: scissor mechanism; 625: telescopic unit; 6251: scissor arm; 626: second rotating axis; 627: third rotating axis; 628: first connecting arm; 629: second connecting arm; 66: fixed plate;

[0020] 70: first sensor; 80: wire clamp; 90: temperature sensor; 100: slide groove; 110: first connecting member; 120: fixing member; 130: second connecting member. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0023] The present application embodiment provides an electronic device, referring to Figures 1 to 4The electronic device may specifically include: a first folding body 10, a second folding body 20, a first magnetic component 30, a second magnetic component 40 and a driving mechanism 60; the first folding body 10 can be folded and unfolded relative to the second folding body 20, the first magnetic component 30 and the driving mechanism 60 are respectively installed on the first folding body 10, and the second magnetic component 40 is installed on the second folding body 20; the driving mechanism 60 includes a driving module 61 and an amplifying module 62, and the driving module 61 is connected to the first magnetic component 30 through the amplifying module 62; the driving module 61 drives the amplifying module 62, and then drives the first magnetic component 30 to move, so that the first magnetic component 30 and the second magnetic component 40 are not attracted to each other, and the first folding body 10 can be unfolded relative to the second folding body 20, wherein the amplifying module 62 is used to amplify the displacement generated by the driving module 61. It can be seen that in this embodiment, the driving source for driving the electronic device to unfold is the driving module 61, and the driving module 61 relies on its own displacement change to drive the electronic device to unfold. The noise generated by the electronic device during the unfolding process is small, which improves the user experience. In addition, since the amplification module 62 can amplify the displacement generated by the driving module 61, the first magnetic component can be moved to the unfolded position of the electronic device, thereby improving the reliability of the unfolding of the electronic device.

[0024] In the embodiments of the present application, the electronic device includes but is not limited to a mobile phone, a tablet computer, a laptop computer, a PDA, an e-reader, a vehicle-mounted device, a wearable device, and a pedometer, etc. The electronic device can be folded and unfolded. The following description takes a folding screen mobile phone as an example.

[0025] Specifically, the first folding body 10 and the second folding body 20 of the folding screen mobile phone are movably connected, and the first folding body 10 can be folded and unfolded relative to the second folding body 20. In a preferred embodiment, a hinge can be provided between the first folding body 10 and the second folding body 20, and the hinge can rotate relative to each other to generate a mechanism movement. The two sides of the hinge can be connected to the first folding body 10 and the second folding body 20 respectively, so that the first folding body 10 and the second folding body 20 can achieve relative rotation. Of course, a flexible member can also be provided between the first folding body 10 and the second folding body 20 to achieve relative rotation between the first folding body 10 and the second folding body 20. In this embodiment, the method for achieving relative rotation between the first folding body 10 and the second folding body 20 is not limited to the two examples, and can also be other methods known to those skilled in the art. This embodiment does not limit this, and can be set according to actual needs. It should be noted that the following is an example of achieving relative rotation between the first folding body 10 and the second folding body 20 through a hinge.

[0026] Specifically, the first folding body 10 and the second folding body 20 each include a housing and several components installed in the housing, and the housing is connected to the hinge. The housing is usually used as the appearance of an electronic device, and can then carry out structural bearing and mechanical / electromagnetic protection for the several components. The several components have different functions so that the folding screen mobile phone can maintain the performance of the whole machine. The several components are not limited to the middle frame, bracket, circuit board assembly, various connectors, cables and batteries.

[0027] Specifically, the display screen of the foldable screen mobile phone is installed on the first foldable body 10 and the second foldable body 20, wherein the display screen of the foldable screen mobile phone is a flexible screen, and the flexible screen includes but is not limited to a flexible organic light-emitting diode screen.

[0028] In actual application, when the first folding body 10 is folded relative to the second folding body 20, the first magnetic component 30 and the second magnetic component 40 attract each other, that is, the first magnetic component 30 and the second magnetic component 40 have opposite magnetic poles and attract each other. The suction force between the first magnetic component 30 and the second magnetic component 40 can make the first folding body 10 and the second folding body 20 folded firmly, and it is difficult for the two to open.

[0029] Specifically, if Figures 1 to 4 As shown, the driving mechanism 60 may include a driving module 61 and an amplifying module 62, wherein the driving module 61 is connected to the first magnetic component through the amplifying module 62, so that the driving module 61 can drive the amplifying module to drive the first magnetic component 30 to move, so that the first magnetic component 30 and the second magnetic component 40 are dislocated and repelled from each other, that is, the first magnetic component 30 and the second magnetic component 40 have the same magnetic poles facing each other, and the two are no longer attracted to each other. The first magnetic component 30 and the second magnetic component 40 are no longer attracted to each other, one situation is: the first magnetic component 30 and the second magnetic component 40 repel each other, and the repulsive force between the two can make the first folding body 10 automatically unfold relative to the second folding body 20; another situation is: the suction force between the first magnetic component 30 and the second magnetic component 40 is basically zero, at this time, the buckling and locking state between the first magnetic component 30 and the second magnetic component 40 is released, and the user can easily unfold the first folding body 10 relative to the second folding body 20.

[0030] It should be noted that the angle at which the first folding body 10 automatically unfolds relative to the second folding body 20 is related to the magnitude of the repulsive force between the first magnetic component 30 and the second magnetic component 40. Therefore, in this embodiment, the two magnetic components can be set according to the actual unfolding angle of the first folding body 10 relative to the second folding body 20.

[0031] Since the driving source for driving the folding screen mobile phone to unfold is the driving module 61, the driving module 61 drives the first magnetic component 30 to move by its displacement change, so that the folding screen mobile phone can unfold. The noise generated during this driving process is small, which improves the user experience. In addition, since the amplification module 62 can amplify the displacement generated by the driving module 61, the displacement required by the first magnetic component 30 is further guaranteed, so that the first magnetic component 30 can move to the set position, that is, to the position where the folding screen mobile phone automatically unfolds, thereby improving the reliability of the automatic unfolding of the folding screen mobile phone.

[0032] In the embodiments of the present application, Figures 1 to 3 As shown, the driving module 61 includes a shape memory alloy wire 611 and a pulley 612. The pulley 612 and the amplifying module 62 are both located on one side of the first magnetic component 30. The pulley 612 is connected to the first magnetic component through the amplifying module 62, and the shape memory alloy wire 611 is wound around the pulley 612. The shape memory alloy wire 611 is deformed when power is supplied, and the driving pulley 612 drives the amplifying module 62 to move.

[0033] In practice, shape memory alloy refers to a solid material with a certain shape (usually a material with a thermoelastic martensitic phase transition), which undergoes a certain amount of plastic deformation at a low temperature (in a martensitic state), and then completely recovers to its shape before deformation by heating to a certain temperature (usually the martensite disappearance temperature of the material). In other words, shape memory alloys can produce expansion and contraction deformations with changes in temperature, such as elongation or contraction when the temperature reaches the deformation temperature, and contraction is used as an example to illustrate below. In order to make the shape memory alloy easy to install and control, the shape memory alloy of this embodiment is a linear structure.

[0034] like Figures 1 to 4 As shown, the pulley 612 and the amplifying module 62 are both located on the right side of the first magnetic component 30, and the pulley 612 is connected to the first magnetic component 30 through the amplifying module 62. Figure 2 and Figure 3 As shown, the amplification module 62 is located between the pulley 612 and the first magnetic component 30; Figure 4 As shown, the pulley 612 is connected to the amplification module 62. Figures 1 to 4As shown, the shape memory alloy wire 611 is wound on the pulley 612. The two ends of the shape memory alloy wire 611 are located on both sides of the pulley 612, and the shape memory alloy wires 611 on both sides of the pulley 612 are of the same length, so that the deformation of the shape memory alloy wires 611 on both sides is consistent. When deformed, the shape memory alloy wires 611 on both sides jointly drive the amplification module 62, thereby driving the first magnetic component 30 to move toward the shape memory alloy wire 611 (shown as moving to the right). In this way, the shape memory alloy wire 611 can also generate 2 times the pulling force when deformed to increase the driving force, so that the deformation of the shape memory alloy wire 611 can drive the amplification module 62 to drive the first magnetic component 30 to move.

[0035] Specifically, the shape memory alloy wire 611 can be heated when powered, for example, Figures 2 to 3 , so that the shape memory alloy wire 611 produces contraction deformation, and the shape memory alloy wire 611 moves to the right, so as to drive the pulley 612 to move to the right, thereby driving the amplification module 62 to move to the right, and then driving the first magnetic component 30 to move to the right, so as to realize the expansion of the first folding body 10 relative to the second folding body 20. Since the shape memory alloy has the advantages of high controllability, simple principle, no noise during deformation, no magnetism and wear resistance, this embodiment relies on the deformation of the shape memory alloy wire 611 to drive the first magnetic component to move, so that the folding screen mobile phone is expanded, and there is basically no noise during the expansion process, which effectively improves the user experience.

[0036] In an optional embodiment of the present application, Figure 2 and Figure 3 As shown, the amplification module 62 may include a movable pulley group; the movable pulley group can move and rotate relative to the first folding body 10, the pulley 612 is connected to the movable pulley group, and a pull rope 622 is wound around the movable pulley group, one end of the pull rope 622 is fixedly connected to the first folding body 10, and the other end is fixedly connected to the first magnetic component 30; the pulley 612 is located on the side of the movable pulley group away from the first magnetic component 30, and the shape memory alloy wire 611 can drive the pulley 612, so that the pulley 612 drives the movable pulley group, and then drives the first magnetic component 30 to move.

[0037] In practice, since the movable pulley group has the advantages of increasing displacement and easy installation, the amplification module 62 of this embodiment may select a movable pulley group. Of course, other existing structures that can amplify displacement may also be selected, such as a scissors-type mechanism (this structure will be described in detail below), etc. This embodiment does not limit this and can be set according to actual needs.

[0038] Specifically, a pull rope 622 is wound around the movable pulley block, one end of the pull rope 622 is fixedly connected to the first folding body 10, and the other end is fixedly connected to the first magnetic component 30. For example, Figure 2and Figure 3 As shown, the pulley is located on the right side of the movable pulley group. When the shape memory alloy wire 611 moves to the right due to contraction deformation, it drives the pulley 612, so that the pulley 612 drives the movable pulley group to move and rotate, thereby driving the pull rope 622 to move on the movable pulley group, so that the pull rope 622 drives the first magnetic component 30 to move to the right.

[0039] In the embodiments of the present application, Figure 2 and Figure 3 As shown, the movable pulley group includes: at least one movable pulley 621, one end of the pull rope on each movable pulley 621 is fixedly connected to the first folding body 10; when there is one movable pulley 621, the movable pulley 621 is fixedly connected to the pulley 612, and the other end of the pull rope on the movable pulley 621 is fixedly connected to the first magnetic component 30; when there are at least two movable pulleys 621, at least two movable pulleys 621 are arranged at intervals, the movable pulley 621 close to the pulley 612 is fixedly connected to the pulley 612, the other end of the pull rope 622 on the movable pulley 621 close to the first magnetic component 30 is fixedly connected to the first magnetic component, and the other ends of the pull ropes 622 on other movable pulleys 621 are fixedly connected to the adjacent movable pulleys 621; the shape memory alloy wire 611 can drive the pulley 612 to drive each movable pulley 621 to move and rotate.

[0040] Specifically, a pull rope 622 is wound around each movable pulley 621 , and each movable pulley 621 can move and rotate relative to the first folding body 10 .

[0041] In one embodiment, if the movable pulley assembly includes a movable pulley 621, the movable pulley 621 is fixedly connected to the pulley 612 around which the shape memory alloy wire 611 is wound, and a pull rope 622 is wound around the movable pulley 621, one end of the pull rope 622 is fixedly connected to the first folding body 10, and the other end is fixedly connected to the right end of the first magnetic component 30 (the end of the first magnetic component 30 close to the shape memory alloy wire 611). Since the movable pulley 621 can move and rotate relative to the first folding body 10, when the shape memory alloy wire 611 moves to the right due to contraction deformation, the drive pulley 612 drives the movable pulley 621 to move to the right and rotate. In this process, the pull rope 622 on the movable pulley 621 moves on the movable pulley 621 to drive the first magnetic component 30 to move to the right.

[0042] In another embodiment, if the movable pulley assembly includes at least two movable pulleys 621, illustratively, as Figure 2 and Figure 3As shown, three movable pulleys 621 are arranged side by side and spaced apart. A pull rope 622 is wound around each movable pulley 621, and each pull rope 622 is located on both sides of the corresponding movable pulley 621. One end of each movable pulley 621 is fixedly connected to the first folding body 10, and the other end of the pull rope 622 on the leftmost movable pulley 621 (the movable pulley 621 close to the first magnetic component 30) is fixedly connected to the right end of the first magnetic component 30. The other ends of the pull ropes 622 on the other two movable pulleys 621 are fixedly connected to the movable pulleys 621 close to them, that is, the other end of the pull rope 622 on the leftmost movable pulley 621 is fixedly connected to the other end of the pull rope 622 on the middle movable pulley 621, and the other end of the pull rope 622 on the middle movable pulley 621 is fixedly connected to the rightmost movable pulley 621. The leftmost movable pulley 621 is fixedly connected to the pulley 612 around which the shape memory alloy wire 611 is wound. Since each movable pulley 621 can move and rotate relative to the first folding body 10, when the shape memory alloy wire 611 generates a contraction deformation and moves to the right, it drives the pulley 612 to drive the leftmost movable pulley group to move to the right and rotate. During this process, the pull rope 622 on the rightmost movable pulley 621 moves on it to drive the middle movable pulley 621 to move to the right and rotate. During this process, the pull rope 622 on the middle movable pulley 621 moves on it to drive the leftmost movable pulley 621 to move to the right and rotate. During this process, the pull rope 622 on the leftmost movable pulley 621 moves on it to drive the first magnetic component 30 to move to the right.

[0043] It should be noted that the number of movable pulleys 621 is not limited in this embodiment and can be set according to actual needs. Figure 2 and Figure 3 , the length of the pull rope 622 on both sides of each movable pulley 621 varies, Figure 3 compared to Figure 2 For example, the length of the pull rope 622 at the lower side of each movable pulley 621 becomes shorter, and the shortened part moves to the upper side of the movable pulley 621. The fixed connection between one end of the pull rope 622 and the first folding body 10 and the other end of the pull rope 622 and the movable pulley 621 / first magnetic component 30 can be achieved by: bonding, connecting through fasteners, and fastening, etc. This embodiment can use any one of them, and the specific selection is based on the situation.

[0044] In the embodiments of the present application, Figure 2 and Figure 3As shown, the driving module 61 also includes: a fixed shaft 613, the movable pulley group also includes at least one first rotating shaft 623, the first folding body 10 is provided with at least one slide groove 100, and one movable pulley 621 corresponds to one first rotating shaft 623 and one slide groove 100; the pulley 612 is fixedly sleeved on the fixed shaft 613; when there is one movable pulley 621, the movable pulley 621 is fixedly sleeved on the first rotating shaft 623, the first rotating shaft 623 and the fixed shaft 613 are fixedly connected, and are respectively movably arranged in the slide groove 100; when the movable pulley 621 is one, the movable pulley 621 is fixedly sleeved on the first rotating shaft 623, the first rotating shaft 623 and the fixed shaft 613 are fixedly connected, and are respectively movably arranged in the slide groove 100; When there are at least two wheels 621, each movable pulley 621 is fixedly mounted on the corresponding first rotating shaft 623, each first rotating shaft 623 is movably arranged in the corresponding slide groove 100, the fixed shaft 613 is movably arranged in the slide groove 100 corresponding to the movable pulley 621 close to the fixed shaft 613, and is fixedly connected to the first rotating shaft 623 corresponding to the movable pulley 621 close to the shape memory alloy wire 611, and the other ends of the pull ropes 622 on the other movable pulleys 621 are fixedly connected to the first rotating shaft 623 corresponding to the adjacent movable pulleys 621.

[0045] In one embodiment, when the movable pulley assembly includes one movable pulley 621, the number of the slide slot 100 and the first rotating shaft 623 is also one. The slide slot 100 is arranged along the direction of movement of the first magnetic component 30, that is, the left and right direction shown in the figure, and the first rotating shaft 623 is located in the slide slot 100 and can move in the slide slot 100. The movable pulley 621 is sleeved on the first rotating shaft 623 and fixedly connected to the first rotating shaft 623. The fixed shaft 613 is also located in the slide groove 100 and can move in the slide groove 100. The pulley 612 is sleeved on the fixed shaft 613 and fixedly connected to the fixed shaft 613. In this way, the shape memory alloy wire 611 drives the pulley 612 to move when it contracts and deforms, driving the fixed shaft 613 to move rightward in the slide groove 100, thereby driving the first rotating shaft 623 to move rightward and rotate, thereby causing the movable pulley 621 to rotate and drive the pull rope 622 to move, so as to pull the first magnetic component 30 to move rightward.

[0046] In another embodiment, when the movable pulley group includes at least two movable pulleys 621, illustratively, as Figure 2 and Figure 3As shown, three movable pulleys 621 are shown. In this way, the number of first rotating shafts 623 and chute 100 is also three, and one movable pulley 621 corresponds to one first rotating shaft 623 and one chute 100. The three chute 100 are arranged at intervals along the left and right directions. In this embodiment, the distance between two adjacent chute 100 is not limited, and can be set according to actual conditions. The three movable pulleys 621 are respectively sleeved on the corresponding first rotating shafts 623 and fixedly connected to the corresponding first rotating shafts 623, so that the three movable pulleys 621 can respectively drive the pull ropes 622 on the other parts to move when rotating. Each first rotating shaft 623 is respectively located in the corresponding chute 100 and can move in the corresponding chute 100. The pulley 612 is sleeved on the fixed shaft 613 and fixedly connected to the fixed shaft 613. The fixed shaft 613 is located in the chute 100 corresponding to the leftmost movable pulley 621 and can move in the chute 100. In addition, the fixed shaft 613 is fixedly connected to the first rotating shaft 623 corresponding to the rightmost movable pulley 621, the other end of the pull rope 622 on the rightmost movable pulley 621 (referred to as the rightmost pull rope 622) is fixedly connected to the first rotating shaft 623 corresponding to the middle movable pulley 621, and the other end of the pull rope 622 on the middle movable pulley 621 (referred to as the middle pull rope 622) is fixedly connected to the first rotating shaft 623 corresponding to the leftmost movable pulley 621. In this way, the fixed shaft 613 can move to the right to drive the first rotating shaft 623 on the rightmost movable pulley. Rotate to drive the rightmost movable pulley 621 to rotate, thereby driving the rightmost pull rope 622 to move, the pull rope 622 drives the middle first rotating shaft 623 to rotate, the middle first rotating shaft 623 drives the middle movable pulley 621 to rotate, thereby driving the middle pull rope 622 to move, the pull rope 622 drives the leftmost first rotating shaft 623 to rotate, the leftmost first rotating shaft 623 drives the leftmost movable pulley 621 to rotate, to drive the leftmost pull rope 622 to move, thereby driving the first magnetic component 30 to move to the right.

[0047] In summary, the arrangement of the slide groove 100 can enable the pulley 612 and the movable pulley 621 to move more smoothly, thereby enabling the first magnetic component 30 to move more smoothly.

[0048] It is worth noting that Figure 2 and Figure 3As shown, from a physical point of view, each movable pulley 621 belongs to the category of movable pulley 621 pulling shaft. The distance moved by the pull rope 622 on a movable pulley 621 is twice the moving distance of the first rotating shaft 623. In this way, the displacement of the shape memory alloy wire 61 during deformation is amplified to meet the displacement required for the first magnetic component 30 to move to the set position. The distance S that the pulley 612 can move to the right along the slide groove 100 under the traction of the shape memory alloy wire 611 is S, S=L*n, L represents the movable length of the shape memory alloy wire 611, and n represents the shrinkage rate of the shape memory alloy wire 611 at a specific temperature. The movable pulley group amplifies the moving distance S generated by the contraction of the shape memory alloy wire 611, and the amplification factor is 2 m (m is the number of movable pulleys 621), the resulting driving displacement is S*2 m .

[0049] It should be noted that, in order not to affect the rotation of the movable pulley 621, a certain distance is set between the fixed shaft 613 and the first rotating shaft 623 (the first rotating shaft 623 on the far right), and the distance is set according to the actual situation. This embodiment does not limit this. In order to save space, the distance is as small as possible. In addition, the slide groove 100 (referred to as the first slide groove 100) that accommodates the fixed shaft 613 and the slide groove 100 (referred to as the second slide groove 100) that accommodates the first rotating shaft 623 (the first rotating shaft 623 on the far right) may not be the same slide groove 100. The first slide groove 100 and the second slide groove 100 are arranged side by side and at intervals.

[0050] like Figure 2 and Figure 3 As shown, the fixed shaft 613 is fixedly connected to the rightmost first rotating shaft 623 via the first connecting member 110. The first connecting member 110 may be made of alloy, plastic or the like, and may be specifically set according to actual needs, which is not limited in this embodiment.

[0051] In the embodiments of the present application, Figure 2 and Figure 3 As shown, the driving mechanism 60 also includes: a reset module 63; the reset module 63 is located between the amplification module 62 and the first magnetic component 30, and there is a preset distance between the reset module 63 and the amplification module 62, one end of the reset module 63 is fixedly connected to the first magnetic component 30, and the other end is fixedly connected to the first folding body 10; while the shape memory alloy wire 611 drives the first magnetic component 30 to move, the reset module 63 is compressed; when the shape memory alloy wire 611 is powered off, the reset module 63 is reset and drives the first magnetic component 30 to move to its original position.

[0052] Specifically, if Figure 2 and Figure 3As shown, there is a preset distance between the reset module 63 and the leftmost movable pulley 621 in the movable pulley group to avoid affecting the rotation of the movable pulley 621. The specific value of the preset distance can be 1mm, 2mm, etc., which is not limited in this embodiment and can be set according to actual needs.

[0053] For example, Figure 3 As shown, the shape memory alloy wire 611 undergoes telescopic deformation when powered on, and the driving pulley 612 drives the rightmost movable pulley 621 to move to the right and rotate, thereby driving the rightmost pull rope 622 to move, and the rightmost pull rope 622 drives the middle movable pulley 621 to move and rotate, thereby driving the middle pull rope 622 to move, and the middle pull rope 622 drives the leftmost movable pulley 621 to move and rotate, thereby driving the leftmost pull rope 622 to move, and then drives the first magnetic component 30 to move to the right. At this time, the first magnetic component 30 squeezes the reset module 63, and the reset module 63 is compressed; after the shape memory alloy wire 611 is powered off, the shape memory alloy wire 611 stops shrinking and deforming and returns to its original shape. During this process, the reset module 63 is reset, driving the first magnetic component 30 to move to the left to its original position (as shown in FIG. Figure 2 As shown), the first magnetic component 30 can drive the leftmost pull rope 622 to move, thereby driving the leftmost movable pulley 621 to move to the left, the leftmost movable pulley 621 drives the middle pull rope 622 to move, thereby driving the middle movable pulley 621 to move to the left, the middle movable pulley 621 drives the rightmost pull rope 622 to move, thereby driving the rightmost movable pulley 621 to move to the left, and then driving the pulley 622 to move to the left, so that the shape memory alloy wire 611 quickly returns to its original state.

[0054] In the embodiments of the present application, Figure 2 and Figure 3 As shown, the electronic device also includes: a fixing plate 66; the fixing plate 66 is located between the amplifying module 62 and the first magnetic component 30, and there is a preset distance between the fixing plate 66 and the amplifying module 62, and the fixing plate 66 is fixedly connected to the first folding body 10; the reset module 63 includes an elastic member 631, the elastic member 631 is located between the fixing plate 66 and the first magnetic component 30, one end of the elastic member 631 is fixedly connected to the first magnetic component 30, and the other end is fixedly connected to the fixing plate 66; while the shape memory alloy wire 611 drives the first magnetic component 30 to move, the elastic member 631 is compressed, and when the shape memory alloy wire 611 is powered off, the elastic member 631 resets.

[0055] Specifically, the elastic member 631 can be deformed under the action of an external force, and can return to its original shape when the external force is removed. Since the spring has the advantages of flexibility, high elasticity and low price, the elastic member 631 of this embodiment is preferably a spring, but is not limited thereto. It can also be a hollow silicone tube with a corrugated side wall, or other elastic members 631. This embodiment does not limit this. The elastic member 631 is described below using a spring as an example.

[0056] Specifically, if Figure 2 and Figure 3 As shown, from left to right, the first magnetic component 30, the spring, the fixed plate 66, the movable pulley group, and the pulley 612 are arranged in sequence. One end of the fixed plate 66 (the upper end shown in the figure) is fixedly connected to the first folding body 10, and the other end (the lower end shown in the figure) is suspended. One end of the spring (the left end shown in the figure) is fixedly connected to the first magnetic component 30, and the other end (the right end shown in the figure) is fixedly connected to the fixed plate 66. There is a preset distance between the fixed plate 66 and the leftmost movable pulley 621 in the movable pulley group to avoid affecting the rotation of the movable pulley 621. The specific value of the preset distance can be 1mm, 2mm, etc. This embodiment does not limit this and can be set according to actual needs. In the figure, the other end of the pull rope 622 on the leftmost movable pulley 621 is fixed to the fixed plate 66.

[0057] like Figure 2 and Figure 3 As shown, when the shape memory alloy wire 611 contracts and deforms to move to the right, it drives the first magnetic component 30 to move to the right. During this process, the first magnetic component 30 squeezes the spring, and the spring is compressed to store energy. After the shape memory alloy wire 611 is powered off, the shape memory alloy wire 611 stops contracting and deforming and returns to its original shape. During this process, the energy-stored spring releases energy and drives the first magnetic component 30 to move to the left, so that the first magnetic component 30 can move to its original position, that is, the position where the two magnetic components attract each other, to prepare for the next folding of the folding screen mobile phone. During this process, the first magnetic component 30 can drive the shape memory alloy wire 611 to quickly return to its original state.

[0058] It should be noted that the reset module 63 in the attached figure includes an elastic member 631. Based on this, an elastic member 631 can also be set, and the two elastic members 631 are opposite (upper and lower in the figure), and the left end of the added elastic member 631 is fixedly connected to the first magnetic component, and the right end is fixedly connected to the fixing plate. After the shape memory alloy wire 611 is powered off, the two elastic members 631 can drive the first magnetic component 30 to return to its original position more quickly, and prepare for the next folding of the folding screen mobile phone more quickly, thereby improving the user experience.

[0059] In an embodiment of the present application, the electronic device also includes: a trigger module 50, a controller, a power supply and two conductive wire clips 80; the two wire clips 80 are located on the side of the pulley 612 away from the amplification module 62, and are respectively fixedly connected to the first folding body 10, one end of the shape memory alloy wire 611 is clamped in one wire clip 80, and the other end is clamped in another wire clip 80, one wire clip 80 is connected to the positive pole of the power supply, and the other wire clip 80 is connected to the negative pole of the power supply, and the shape memory alloy wire 611, the power supply and the two wire clips 80 form a closed loop; the controller is electrically connected to the trigger module 50 and the power supply respectively, the trigger module 50 is used to generate a trigger signal in response to a user operation when the first folding body 10 is folded relative to the second folding body 20, and the controller is used to control the power supply to power on when the trigger signal is obtained, so that the shape memory alloy wire 611 is energized.

[0060] Specifically, the trigger module 50 can be arranged on the first folding body 10 and / or the second folding body 20, and the trigger module 50 shown in the figure is arranged on the second folding body 20. The trigger module 50 is used to generate a trigger signal in response to a user operation. When the first folding body 10 is folded relative to the second folding body 20, that is, when the folding screen mobile phone is in a folded state, if the user wants to open the folding screen mobile phone, an operation can be initiated. User operations include but are not limited to actions such as pressing, touching, and dialing that require contact with the folding screen mobile phone, as well as operations such as issuing voice commands and preparing to shoot that do not require contact with the folding screen mobile phone. The trigger module 50 of the folding screen mobile phone may include a button module, a fingerprint recognition module, a voice input module, and an image acquisition module.

[0061] Specifically, the button module can be installed on the second folding body 20, and has a contact surface exposed on the second folding body 20. When the folding screen mobile phone is folded, the user can touch the contact surface to trigger the button module to generate a trigger signal. Among them, the button module can be an existing button such as a power button or a volume button on the folding screen mobile phone, or a button specially designed for pressing or dialing. The button module can also be installed on the first folding body 10, or on the first folding body 10 and the second folding body 20. The specific installation position of the button module is not limited in this embodiment, and it is set according to actual conditions.

[0062] Specifically, the fingerprint recognition module can be installed on the second folding body 20 and have a contact surface exposed on the second folding body 20. When the folding screen mobile phone is folded, the user can touch the contact surface to trigger the fingerprint recognition module to generate a trigger signal. The trigger signal generated by the fingerprint recognition module carries the user's fingerprint information. The fingerprint recognition module can also be installed on the first folding body 10, or on the first folding body 10 and the second folding body 20. The specific installation position of the fingerprint recognition module is not limited in this embodiment, and it is set according to the actual situation.

[0063] Specifically, the image acquisition module can be installed in the second folding body 20 to collect the user's image information, which can be the user's iris information or the portrait information collected when the user takes a selfie. The trigger signal generated by the image acquisition module carries the user's image information. The image acquisition module can also be installed in the first folding body 10, or in the first folding body 10 and the second folding body 20. The specific installation position of the image acquisition module is not limited in this embodiment and is set according to actual conditions.

[0064] Specifically, the voice input module can be installed in the second folding body 20 to collect the user's voice commands. The voice input module includes but is not limited to a microphone. The trigger signal generated by the voice input module carries the user's voice information. The voice input module can also be installed in the first folding body 10, or in the first folding body 10 and the second folding body 20. The specific installation position of the voice input module is not limited in this embodiment and is set according to actual conditions.

[0065] The controller is electrically connected to the trigger module 50 and the shape memory alloy wire 61, respectively. When the first folding body 10 is folded relative to the second folding body 20, that is, when the folding screen mobile phone is in a folded state, if the user wants to open the folding screen mobile phone, an operation can be initiated. The trigger module 50 generates a trigger signal in response to the operation initiated by the user and sends the trigger signal to the controller.

[0066] In practice, the wire clamp 80 is an iron or aluminum metal accessory that can be fixed on the wire. Most of them need to withstand a large tensile force during operation, and some also need to ensure good electrical contact. Specifically, when the shape memory alloy wire 611 is fixed, the shape memory alloy wire 611 is clamped by the wire clamp 80 in this embodiment. Figure 2 and Figure 3As shown, in this embodiment, two wire clamps 80 are arranged on the right side of the pulley 612, and the two wire clamps 80 are arranged opposite to each other. The two wire clamps 80 are respectively fixed in the first folding body 10, and one end of the shape memory alloy wire 611 is clamped in one wire clamp 80, and the other end is clamped in the other wire clamp 80. Since the wire clamps 80 are conductive, one wire clamp 80 is connected to the positive electrode of the power supply, and the other wire clamp 80 is connected to the negative electrode of the power supply, so that the shape memory alloy wire 611, the power supply and the two wire clamps 80 form a closed loop.

[0067] Specifically, when the controller obtains the trigger signal, it controls the power supply to be powered on, so that the closed loop is turned on and the shape memory alloy wire 611 is energized to shrink and deform, thereby driving the first magnetic component 30 to move, thereby making the first folding body 10 unfold relative to the second folding body 20.

[0068] In the embodiments of the present application, Figure 2 As shown, the electronic device also includes: a first sensor 70 and a temperature sensor 90; the first sensor 70 is installed on the first folding body 10, and is used to detect whether the first magnetic component 30 moves to a preset position, and if so, sends a position signal; the temperature sensor 90 is installed on the first folding body 10, and is used to detect the temperature value of the shape memory alloy wire 611 and send it; the controller also electrically connects the first sensor 70 and the temperature sensor 90 respectively, and is used to control the shape memory alloy wire 611 to cut off power when a position signal is obtained or the obtained temperature value exceeds a preset temperature value.

[0069] Specifically, the first sensor 70 is fixed in the first folding body 10, and can detect whether the first magnetic component 30 moves to a preset position, which is a position where the first folding body 10 can be unfolded relative to the second folding body 20. If so, a position signal is sent to the controller. When the controller obtains the position signal, it controls the shape memory alloy wire 611 to be powered off, and the shape memory alloy wire 611 stops shrinking and deforming and returns to its original shape. During this process, the energy-storing spring releases energy and drives the first magnetic component 30 to move to the left, so that the first magnetic component 30 can move to the original position, that is, the position where the two magnetic components attract each other, to prepare for the next folding of the folding screen mobile phone.

[0070] In practice, the Hall sensor can detect whether the first magnetic component 30 is located at a preset position through changes in the magnetic field of the first magnetic component 30. It has the advantages of being sensitive to magnetic fields, simple in structure, small in size, and having a long service life. Therefore, the first sensor 70 of this embodiment is preferably a Hall sensor. Of course, other sensors that can detect position may also be selected, such as position sensors or other sensors. This embodiment does not limit this, and the specific selection may be made based on actual needs.

[0071] Specifically, the temperature sensor 90 is fixed in the first folding body 10, and is used to detect the temperature value of the shape memory alloy wire 611, and send it to the controller. When the controller obtains the temperature value, it compares it with the preset temperature value. If the obtained temperature value exceeds the preset temperature value, the shape memory alloy wire 611 is controlled to be powered off to avoid the shape memory alloy wire 611 from abnormally damaging other components in the electronic device during the power-on process. According to the performance of the shape memory alloy wire 611, the preset temperature value is saved in the controller in advance.

[0072] In addition, in order to make the temperature sensor 90 detect the temperature value of the shape memory alloy wire 611 more accurately, the temperature sensor 90 is disposed in the first folding body 10 at a position close to the temperature sensor 90 .

[0073] In the embodiments of the present application, Figure 2 and Figure 3 As shown, the first magnetic component 30 includes a first magnetic member 31 and a second magnetic member 32 arranged alternately, and the first magnetic member 31 is connected to the second magnetic member 32, the first magnetic member 31 has a first magnetic pole, the second magnetic member 32 has a second magnetic pole, and the first magnetic pole is opposite to the second magnetic pole; the second magnetic component 40 includes a third magnetic member 41 and a fourth magnetic member 42 arranged alternately, and the third magnetic member 41 is connected to the fourth magnetic member 42, the third magnetic member 41 has a third magnetic pole, the fourth magnetic member 42 has a fourth magnetic pole, the third magnetic pole is opposite to the fourth magnetic pole, and is the same as the first magnetic pole, and the fourth magnetic pole is the same as the second magnetic pole; when the first folding body 10 is folded relative to the second folding body 20, the first magnetic member 31 is opposite to the fourth magnetic member 42, and the second magnetic member 32 is opposite to the third magnetic member 41; when the first folding body 10 is unfolded relative to the second folding body 20, the third magnetic member 41 is opposite to the first magnetic member 31, and the fourth magnetic member 42 is opposite to the second magnetic member 32; the length of the first magnetic component 30 is less than the length of the second magnetic component 40.

[0074] Specifically, the first magnetic component 30 includes a first magnetic member 31 and a second magnetic member 32 arranged alternately, and the first magnetic member 31 is connected to the second magnetic member 32, the first magnetic member 31 has a first magnetic pole (for example, an N pole), the second magnetic member 32 has a second magnetic pole (for example, an S pole), and the first magnetic pole is opposite to the second magnetic pole. The second magnetic component 40 includes a third magnetic member 41 and a fourth magnetic member 42 arranged alternately, and the third magnetic member 41 is connected to the fourth magnetic member 42, the third magnetic member 41 has a third magnetic pole, and the fourth magnetic member 42 has a fourth magnetic pole, the third magnetic pole is opposite to the fourth magnetic pole, and is the same as the first magnetic pole (N pole), that is, the third magnetic pole is the N pole, and the fourth magnetic pole is the same as the second magnetic pole (S pole), that is, the fourth magnetic pole is the S pole.

[0075] like Figure 2 As shown, when the first folding body 10 is folded relative to the second folding body 20, the first magnetic member 31 (N pole) and the fourth magnetic member 42 (S pole) are positioned relative to each other, and the second magnetic member 32 (S pole) and the third magnetic member 41 (N pole) are positioned relative to each other. At this time, there is an attractive force between the first magnetic member 31 and the second magnetic member 32, so that the first folding body 10 and the second folding body 20 can be firmly maintained in a folded state.

[0076] like Figure 3 As shown, when the shape memory alloy wire 611 contracts and deforms and moves to the right, the first magnetic component 30 is driven to move to the right. When it moves to the set position, the third magnetic component 41 (N pole) is opposite to the first magnetic component 31 (N pole), and the fourth magnetic component 42 (S pole) is opposite to the second magnetic component 32 (S pole). At this time, there is a repulsive force between the first magnetic component 31 and the second magnetic component 32, so that the first folding body 10 is automatically unfolded relative to the second folding body 20.

[0077] like Figure 2 and Figure 3 As shown, the length of the first magnetic component 30 is smaller than that of the second magnetic component 40, so that the space occupied by the first folding body 10 can be reduced. In the figure, from left to right, the magnetic poles of the first magnetic component 30 are N, S, N, S, N, and the magnetic poles of the second magnetic component 40 are S, N, S, N, S, N, S, N, as shown in FIG. Figure 2 As shown, when the first folding body 10 is folded relative to the second folding body 20, the left end of the first magnetic component 30 is aligned with the left end of the second magnetic component 40, and when the first folding body 10 is unfolded relative to the second folding body 20, the right end of the first magnetic component 30 is aligned with the right end of the second magnetic component 40. It should be noted that the positions of the two magnetic components when the electronic device is in the folded / unfolded state are only an example. For example, when the electronic device is in the unfolded state, the right end of the first magnetic component 30 may not be aligned with the right end of the second magnetic component 40. The position to which the first magnetic component 30 can move to the right is related to the magnitude of the traction force driving the first magnetic component 30. In addition, the length of the magnetic pole of the first magnetic component 30 may also be the same as the length of the second magnetic component 40. At this time, from left to right, the magnetic poles of the first magnetic component 30 are N, S, N, S, N, S, N, S respectively. When the first folding body 10 is folded relative to the second folding body 20, the left end of the first magnetic component 30 is aligned with the left end of the second magnetic component 40, and the right end of the first magnetic component 30 is aligned with the right end of the second magnetic component 40; when the first folding body 10 is unfolded relative to the second folding body 20, part of the first magnetic component 30 is aligned with part of the second magnetic component 40, and the other part protrudes out of the second magnetic component 40.

[0078] In another optional embodiment of the present application, referring to Figure 4 The amplification module 62 may include a scissor mechanism 624; the scissor mechanism 624 and the pulley 612 are arranged side by side, and the scissor mechanism 624 can be extended or contracted. In the extension direction of the scissor mechanism 624, one end of the scissor mechanism 624 is fixedly connected to the first folding body 10, and the other end is fixedly connected to the first magnetic component 30, and the pulley 612 is fixedly connected to the scissor mechanism 624; the shape memory alloy wire 611 drives the pulley 612 to drive the scissor mechanism 624 to contract, thereby driving the first magnetic component 30 to move.

[0079] Specifically, if Figure 4 As shown, the extension direction of the scissor mechanism 624 is the left-right direction shown in the figure. In the left-right direction, one end of the scissor mechanism 624 (the right end shown in the figure, that is, the end away from the first magnetic component) is fixedly connected to the first folding body 10 (for example, the shell of the first folding body), and the other end (the left end shown in the figure, that is, the end close to the first magnetic component) is fixedly connected to the right side of the first magnetic component 30. The pulley 612 is fixedly connected to the scissor mechanism 624. When the shape memory alloy wire 611 contracts and deforms, it drives the pulley 612 to drive the scissor mechanism 624 to contract. The contraction of the scissor mechanism 624 drives the first magnetic component 30 to move to the right, so that the first magnetic component 30 and the second magnetic component 40 are not attracted to each other, so that the user can easily unfold the folding screen mobile phone, or the folding screen mobile phone automatically unfolds.

[0080] like Figure 4As shown, the scissor mechanism 624 includes multiple groups of telescopic units 625, a second rotating shaft 626, a third rotating shaft 627, two first connecting arms 628 and two second connecting arms 629; each group of telescopic units 625 includes two scissor arms 6251, and the two scissor arms 6251 are pivoted through a pivot, and the ends of the scissor arms 6251 relative to each other in two adjacent telescopic units 625 are pivoted to each other; the second rotating shaft 626 is located on the side of the first telescopic unit of the scissor mechanism 624 away from the first magnetic component 30, and is fixedly connected to the first folding body 10, one end of the two first connecting arms 628 is pivoted through the second rotating shaft 626, and the other end is respectively connected to the two scissor arms 6251 of the first telescopic unit away from the first magnetic component 30 The third rotating shaft 627 is located on the side of the second telescopic unit of the scissors-fork mechanism 624 close to the wedge block 67 and is fixedly connected to the first magnetic component 30. One end of the two second connecting arms 629 is pivoted through the third rotating shaft 627, and the other end is respectively pivoted to the end of the two scissors arms 6251 of the second telescopic unit close to the first magnetic component 30; the pulley is fixedly sleeved on the pivot of the first telescopic unit, and the shape memory alloy wire drives the pulley to drive each telescopic unit 625 to contract, wherein, in the direction from the scissors-fork mechanism 624 to the first magnetic component 30, the first telescopic unit is the first telescopic unit 625 of the scissors-fork mechanism 624, and the second telescopic unit is the last telescopic unit 625 of the scissors-fork mechanism 624.

[0081] Specifically, if Figure 4 As shown, the two scissor arms 6251 are pivotally connected by a pivot, that is, the two scissor arms 6251 can rotate around the pivot. The ends of the scissor arms 6251 in two adjacent telescopic units 625 are pivotally connected to each other. In practice, the ends of the scissor arms 6251 in two adjacent telescopic units 625 are also pivotally connected by a pivot, that is, the ends of the scissor arms 6251 in two adjacent telescopic units 625 rotate around the pivot. Figure 4 Two sets of telescopic units 625 are shown. In the direction from the scissor mechanism 624 to the first magnetic component 30, that is, from right to left in the figure, the left ends of the two scissor arms 6251 in the first telescopic unit are respectively pivotally connected to the corresponding right ends of the two scissor arms 6251 in the second telescopic unit.

[0082] Specifically, the second shaft 626 is located on the side of the first telescopic unit of the scissor mechanism 624 away from the first magnetic assembly 30, that is, on the right side of the first telescopic unit, and the second shaft 626 is fixedly connected to the first folding body (such as its shell). One end of the two first connecting arms 628 is pivotally connected through the second shaft 626, that is, the right ends of the two first connecting arms 628 are respectively sleeved on the second shaft 626, and both can rotate relative to the second shaft 626. The left ends of the two first connecting arms 628 are respectively pivotally connected to the right ends of the two scissor arms 6251 of the first telescopic unit. In practice, the left end of a first connecting arm 628 (for example, the upper one) and the right end of a scissor arm 6251 (for example, the upper one) of the first telescopic unit are respectively mounted on a pivot, and both rotate relative to the pivot. Similarly, the left end of another first connecting arm 628 (for example, the lower one) and the right end of another scissor arm 6251 (for example, the lower one) of the first telescopic unit are respectively mounted on a pivot, and both rotate relative to the pivot.

[0083] Specifically, the third rotating shaft 627 is located on a side of the second telescopic unit of the scissor mechanism 624 close to the first magnetic component 30, that is, located on the left side of the second telescopic unit, and the third rotating shaft 627 is fixedly connected to the right side of the first magnetic component 30. One end of the two second connecting arms 629 is pivotally connected through the third rotating shaft 627, that is, the left ends of the two second connecting arms 629 are respectively sleeved on the third rotating shaft 627, and both can rotate relative to the third rotating shaft 627. The right ends of the two second connecting arms 629 are respectively pivotally connected to the right end parts of the two scissor arms 6251 of the second telescopic unit. In practice, the right end of a second connecting arm 629 (for example, the upper one) and the left end of a scissor arm 6251 (for example, the upper one) of the second telescopic unit are respectively mounted on a pivot, and both rotate relative to the pivot. Similarly, the right end of another second connecting arm 629 (for example, the lower one) and the left end of another scissor arm 6251 (for example, the lower one) of the second telescopic unit are respectively mounted on a pivot, and both rotate relative to the pivot.

[0084] Specifically, if Figure 4 As shown, the pulley 612 is fixedly mounted on the pivot in the first telescopic unit, so that when the shape memory alloy wire 611 contracts and deforms, it can drive the pulley 612 to drive each telescopic unit 625 to contract (two adjacent telescopic units 625 move closer to each other), thereby driving the first magnetic component 30 to move to the right. It is worth noting that the scissor mechanism 624 amplifies the moving distance S generated by the contraction of the shape memory alloy wire 611 by a factor of 2. n (n is the number of telescopic units 625), the resulting driving displacement is S*2 n .

[0085] like Figure 4As shown, the electronic device further includes: a fixing member 120; the fixing member 120 is located at one end of the scissor mechanism 624 away from the side of the first magnetic component 30, that is, located on the right side of the right end of the scissor mechanism 624, the fixing member 120 is fixedly connected to the first folding body 10, and the second rotating shaft 626 in the scissor mechanism 624 is fixed to the fixing member 120. The fixing member 120 can be a plate-like structure, a columnar structure or other structures, and the structure can be set according to actual conditions.

[0086] like Figure 4 As shown, the electronic device further includes: a second connecting member 130, the second connecting member 130 is located between the left end of the scissor mechanism 624 and the first magnetic component 30, the left end of the second connecting member 130 is fixedly connected to the right side of the first magnetic component 30, and the right end of the second connecting member 130 is fixedly connected to the second rotating shaft 627 of the scissor mechanism 624. The second connecting member 130 is a tensionable, inelastic material, such as a rope and a metal rod.

[0087] When the power is off, the shape memory alloy wire 611 stops shrinking and deforming and returns to its original shape. During this process, the energy-stored spring releases energy to drive the first magnetic component 30 to move to the left, so that the first magnetic component 30 can move to its original position, that is, the position where the two magnetic components attract each other, to prepare for the next folding of the folding screen mobile phone. During this process, the first magnetic component 30 pulls the scissors mechanism 624 through the second connecting member 130 to reset the scissors mechanism 624, thereby driving the slide to move to the left, and then driving the shape memory alloy wire 611 to move to the left to quickly return to its original state.

[0088] In the prior art, for the driving mechanism 60 that drives the two folding bodies to unfold, the motor is the power source, and the intermediate transmission mechanism is usually a screw nut. This structure is usually stacked, occupying a large stacking space, which is not conducive to the development of electronic equipment towards lightness and thinness; in addition, the energy consumption of the motor-driven intermediate transmission mechanism is relatively high, and the rigid whole machine has a long standby time.

[0089] Since the first magnetic component 30, the reset module 63, the amplifying module 62 and the pulley of the present embodiment are arranged in a row, the stacking space is reduced, which is conducive to the development of electronic equipment to be lighter and thinner. In addition, the length of the first magnetic component 30 is less than the length of the second magnetic component 40, which can make room for the driving mechanism 60 and other components. Since the shape memory alloy wire 611 can be deformed when it is instantly heated, the present embodiment amplifies the displacement generated by the deformation of the shape memory alloy wire 611 through the amplifying module 62, so that the shape memory alloy wire 611 can drive the first magnetic component 30 to move to a preset position within a shorter power-on time, with low energy consumption and increased standby time of the entire machine.

[0090] It should be noted that the two components mentioned above are fixedly connected, which means that there will be no relative displacement between the two components. The implementation method can be one of bonding, welding, fastener connection, and clamping, and the specific selection can be made according to actual conditions.

[0091] The electronic device provided by the embodiment of the present application has the following advantages:

[0092] In the embodiment of the present application, the electronic device includes a first folding body, a second folding body, a first magnetic component, a second magnetic component and a driving mechanism; the first folding body can be folded and unfolded relative to the second folding body, the first magnetic component and the driving mechanism are respectively installed on the first folding body, and the second magnetic component is installed on the second folding body; the driving mechanism includes a driving module and an amplifying module, and the driving module is connected to the first magnetic component through the amplifying module; in practice, when the first folding body can be folded relative to the second folding body, the first magnetic component and the second magnetic component are attracted to each other, and the driving module can drive the amplifying module to drive the first magnetic component to move, so that the first magnetic component and the second magnetic component are not attracted to each other, and the first folding body can be unfolded relative to the second folding body, wherein the amplifying module is used to amplify the displacement generated by the driving module. It can be seen that the driving source for driving the electronic device to unfold in this embodiment is the driving module, and the driving module relies on its own displacement change to drive the electronic device to unfold, and the noise generated by the electronic device during the unfolding process is small, which improves the user experience, and because the amplifying module can amplify the displacement generated by the driving module, so that the first magnetic component can move to the position where the electronic device is unfolded, the reliability of the unfolding of the electronic device is improved.

[0093] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0094] Although the optional embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including optional embodiments and all changes and modifications that fall within the scope of the present application.

[0095] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the existence of other identical elements in the article or terminal device including the elements. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0096] The technical solution provided by the present application is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. At the same time, for those skilled in the art, according to the principles and implementation methods of the present application, there may be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. An electronic device, characterized in that: The electronic device comprises: a first folding body, a second folding body, a first magnetic component, a second magnetic component and a driving mechanism; The first folding body can be folded and unfolded relative to the second folding body, the first magnetic component and the driving mechanism are respectively installed on the first folding body, and the second magnetic component is installed on the second folding body; The driving mechanism comprises a driving module and an amplifying module, and the driving module is connected to the first magnetic component through the amplifying module; The driving module drives the amplifying module, thereby driving the first magnetic component to move, so that the first magnetic component and the second magnetic component are not attracted to each other, and the first folding body can be unfolded relative to the second folding body, wherein the amplifying module is used to amplify the displacement generated by the driving module; Wherein, the driving module includes a shape memory alloy wire and a pulley; The pulley and the amplifying module are both located on one side of the first magnetic component, the pulley is connected to the first magnetic component through the amplifying module, and the shape memory alloy wire is wound on the pulley; The shape memory alloy wire is deformed when powered, driving the pulley to drive the amplification module to move; Wherein, the amplification module includes a movable pulley set; The movable pulley block can move and rotate relative to the first folding body, the pulley is connected to the movable pulley block, a pull rope is wound around the movable pulley block, one end of the pull rope is fixedly connected to the first folding body, and the other end is fixedly connected to the first magnetic component; The pulley is located at a side of the movable pulley group away from the first magnetic component, and the shape memory alloy wire can drive the pulley, so that the pulley drives the movable pulley group, and further drives the first magnetic component to move; Wherein, the movable pulley group comprises: at least one movable pulley, one end of the pull rope on each movable pulley is respectively fixedly connected to the first folding body; When there is one movable pulley, the movable pulley is fixedly connected to the pulley, and the other end of the pull rope on the movable pulley is fixedly connected to the first magnetic component.

2. The electronic device according to claim 1, characterized in that: When there are at least two movable pulleys, at least two movable pulleys are arranged at intervals, the movable pulley close to the pulley is fixedly connected to the pulley, the other end of the pull rope on the movable pulley close to the first magnetic component is fixedly connected to the first magnetic component, and the other ends of the pull ropes on the other movable pulleys are respectively fixedly connected to the adjacent movable pulleys; The shape memory alloy wire can drive the pulley to drive each movable pulley to move and rotate.

3. The electronic device according to claim 2, characterized in that: The driving module further includes a fixed shaft, the movable pulley group further includes at least one rotating shaft, the first folding body is provided with at least one sliding groove, and one movable pulley corresponds to one rotating shaft and one sliding groove; The pulley fixing sleeve is arranged on the fixed shaft; When there is one movable pulley, the movable pulley is fixedly sleeved on the rotating shaft, the rotating shaft and the fixed shaft are fixedly connected, and are movably arranged in the sliding groove respectively; When there are at least two movable pulleys, each movable pulley is fixedly mounted on a corresponding rotating shaft, each rotating shaft is movably disposed in a corresponding sliding groove, the fixed shaft is movably disposed in a sliding groove corresponding to the movable pulley close to the fixed shaft, and is fixedly connected to the rotating shaft corresponding to the movable pulley close to the shape memory alloy wire, and the other ends of the pull ropes on the other movable pulleys are fixedly connected to the rotating shafts corresponding to the adjacent movable pulleys.

4. The electronic device according to claim 1, characterized in that: The driving mechanism further comprises: a reset module; The reset module is located between the amplifying module and the first magnetic component, and has a preset distance from the amplifying module. One end of the reset module is fixedly connected to the first magnetic component, and the other end of the reset module is fixedly connected to the first folding body. When the shape memory alloy wire drives the first magnetic component to move, the reset module is compressed; When the shape memory alloy wire is powered off, the reset module is reset and drives the first magnetic component to move to its original position.

5. The electronic device according to claim 4, characterized in that: The electronic device further comprises: a fixing plate; The fixing plate is located between the amplifying module and the first magnetic component, and has the preset distance from the amplifying module, and the fixing plate is fixedly connected to the first folding body; The reset module comprises an elastic member, the elastic member is located between the fixing plate and the first magnetic component, one end of the elastic member is fixedly connected to the first magnetic component, and the other end of the elastic member is fixedly connected to the fixing plate; When the shape memory alloy wire drives the first magnetic component to move, the elastic member is compressed. When the shape memory alloy wire is powered off, the elastic member is reset.

6. The electronic device according to claim 1, characterized in that: The electronic device further comprises: a trigger module, a controller, a power supply and two conductive clips; The two wire clamps are located on a side of the pulley away from the amplification module and are respectively fixedly connected to the first folding body. One end of the shape memory alloy wire is clamped in one of the wire clamps, and the other end is clamped in the other wire clamp. One of the wire clamps is connected to the positive pole of the power supply, and the other wire clamp is connected to the negative pole of the power supply. The shape memory alloy wire, the power supply and the two wire clamps form a closed loop. The controller is electrically connected to the trigger module and the power supply respectively. The trigger module is used to generate a trigger signal in response to a user operation when the first folding body is folded relative to the second folding body. The controller is used to control the power supply to power on when the trigger signal is obtained, so as to energize the shape memory alloy wire.

7. The electronic device according to claim 6, characterized in that: The electronic device further comprises a first sensor and a temperature sensor; The first sensor is installed on the first folding body and is used to detect whether the first magnetic component moves to a preset position, and if so, sends a position signal; The temperature sensor is installed on the first folding body, and is used to detect and send the temperature value of the shape memory alloy wire; The controller is also electrically connected to the first sensor and the temperature sensor respectively, and is used to control the shape memory alloy wire to be powered off when the position signal is obtained or the temperature value obtained by comparison exceeds a preset temperature value.

8. The electronic device according to claim 1, characterized in that: The first magnetic component includes a first magnetic member and a second magnetic member that are alternately arranged, and the first magnetic member is connected to the second magnetic member, the first magnetic member has a first magnetic pole, the second magnetic member has a second magnetic pole, and the first magnetic pole is opposite to the second magnetic pole; The second magnetic component includes a third magnetic member and a fourth magnetic member that are alternately arranged, and the third magnetic member is connected to the fourth magnetic member, the third magnetic member has a third magnetic pole, the fourth magnetic member has a fourth magnetic pole, the third magnetic pole is opposite to the fourth magnetic pole and is the same as the first magnetic pole, and the fourth magnetic pole is the same as the second magnetic pole; When the first folding body is folded relative to the second folding body, the first magnetic member is opposite to the fourth magnetic member, and the second magnetic member is opposite to the third magnetic member; when the first folding body is unfolded relative to the second folding body, the third magnetic member is opposite to the first magnetic member, and the fourth magnetic member is opposite to the second magnetic member; The length of the first magnetic component is smaller than the length of the second magnetic component.

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