Foldable devices

Abstract

This disclosure relates to a foldable device, specifically a foldable device technology. The foldable device includes a first magnetic component, a second magnetic component, and a folding component. The first and second magnetic components are located on opposite sides of the folding component. The first magnetic component includes multiple first magnetic elements, and the second magnetic component includes multiple second magnetic elements. The number of first and second magnetic elements is equal, and at least one of the multiple first and second magnetic elements is an electromagnet. When the foldable device is in a closed state, the positions of the multiple first and second magnetic elements correspond one-to-one. When the foldable device needs to be closed, the electromagnets and other magnetic elements generate an attractive force to fix the sides of the foldable device. When the foldable device needs to be unfolded, the electromagnets and other magnetic elements eliminate the attractive force or generate a repulsive force to reduce the locking force on both sides of the foldable device. The user can unfold the foldable device by applying a small external force with one hand.

Description

Technical Field

[0001] This disclosure relates to the field of foldable device technology, and particularly to a foldable device. Background Technology

[0002] With the development of foldable screen technology, foldable devices are accounting for an increasingly larger share of the smart terminal market. The foldable screen of a foldable device consists of a first side and a second side, with the first and second areas unfolding or closing via a hinge mechanism.

[0003] In related technologies, in order to maintain the stability of the closed state of the foldable device, permanent magnets are usually set on both sides of the hinge mechanism. When the foldable device is closed, the permanent magnets at corresponding positions have magnetic attraction between them, thereby ensuring the effective closure of the foldable device.

[0004] To ensure the magnetic attraction effect of the permanent magnets, the magnetic field strength of the permanent magnets on both sides is large and constant. This means that the unfolding process of the foldable electronic device requires a large external force, and the user needs to operate with both hands, which makes the unfolding operation inconvenient. Utility Model Content

[0005] This disclosure provides a foldable device that can solve the aforementioned technical problems existing in related technologies. The technical solution is as follows:

[0006] The foldable device includes a first magnetic component, a second magnetic component, and a folding component;

[0007] The first magnetic component and the second magnetic component are respectively located on both sides of the folding component. The first magnetic component includes a plurality of first magnetic elements, and the second magnetic component includes a plurality of second magnetic elements. The number of first magnetic elements and second magnetic elements is equal, and at least one of the plurality of first magnetic elements and the plurality of second magnetic elements is an electromagnet.

[0008] When the foldable device is in the closed state, the positions of the plurality of first magnetic components and the plurality of second magnetic components correspond one-to-one.

[0009] In some possible implementations, when the electromagnet is in the first state, both the first magnetic component and the second magnetic component are arranged in a Helbeck array, and the strong magnetic sides of the first magnetic component and the second magnetic component are opposite to each other.

[0010] In some possible implementations, the plurality of first magnetic elements and the plurality of second magnetic elements are arranged in a straight line.

[0011] In some possible implementations, the number of the first magnetic component and the second magnetic component is odd. When the foldable device is in a folded state, the magnetic field direction of the first magnetic component located at the edge of the first magnetic component is parallel to the line connecting the first magnetic component and the second magnetic component, and the magnetic field direction of the second magnetic component located at the edge of the second magnetic component is parallel to the line connecting the first magnetic component and the second magnetic component.

[0012] In some possible implementations, the electromagnet is located at the edge of a plurality of first magnetic elements arranged in a straight line, and / or the electromagnet is located at the edge of a plurality of second magnetic elements arranged in a straight line.

[0013] In some possible implementations, the first magnetic component further includes a first magnetic conductor disposed on the side away from the second magnetic conductor when the foldable device is in a folded state.

[0014] In some possible implementations, the second magnetic component further includes a second magnetic conductor disposed on the side away from the first magnetic conductor when the foldable device is in a folded state.

[0015] In some possible implementations, the number of electromagnets in the first magnetic element and the second magnetic element is one.

[0016] In some possible implementations, one of the first magnetic elements is an electromagnet, and the first magnetic assembly is located on a first side of the foldable device; or, one of the second magnetic elements is an electromagnet, and the second magnetic assembly is located on a first side of the foldable device;

[0017] The first side is the side where the camera module is located in the foldable device.

[0018] In some possible implementations, the electromagnet includes a first soft magnetic component, a second soft magnetic component, and a coil, wherein the first soft magnetic component and the second soft magnetic component are concentrically arranged, and the coil is located between the first soft magnetic component and the second soft magnetic component.

[0019] In some possible implementations, a plurality of the first magnetic elements are connected together by adhesive, and a plurality of the second magnetic elements are connected together by adhesive.

[0020] In some possible implementations, the plurality of first magnetic elements have the same height in the thickness direction of the foldable device, and the plurality of second magnetic elements have the same height in the thickness direction of the foldable device.

[0021] The beneficial effects of the technical solution provided in this disclosure include at least the following:

[0022] In this disclosure, the electromagnets in the first and second magnetic components can adjust their own magnetic field direction and magnetic field strength, so that the electromagnets generate an adjustable attractive or repulsive force with other magnetic components. When the foldable device needs to be closed, the attractive force is generated to fix the two sides of the foldable device. When the foldable device needs to be unfolded, the attractive force is eliminated or the repulsive force is generated to reduce the locking force on the two sides of the foldable device. The user can unfold the foldable device by applying a small external force with one hand, avoiding the need for the user to operate with both hands, making the operation simple and convenient.

[0023] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a foldable device provided in an embodiment of this disclosure.

[0026] Figure 2 This is a schematic diagram of the structure of a foldable device provided in an embodiment of this disclosure.

[0027] Figure 3 This is a schematic diagram of the structure of a foldable device provided in an embodiment of this disclosure.

[0028] Figure 4 This is an assembly diagram of a first magnetic component and a second magnetic component provided in an embodiment of this disclosure.

[0029] Figure 5 This is an exploded view of a first magnetic component and a second magnetic component provided in an embodiment of this disclosure.

[0030] Figure 6 This is a schematic diagram of the structure of an electromagnet provided in an embodiment of this disclosure.

[0031] Figure label:

[0032] 1. First magnetic component; 11. First magnetic element; 12. First magnetic conductive element;

[0033] 2. Second magnetic component; 21. Second magnetic element; 22. Second magnetic conductor;

[0034] A. Electromagnet; 001. First soft magnetic component; 002. Second soft magnetic component; 003. Coil; 004. Fourth soft magnetic component;

[0035] B. Permanent magnet;

[0036] 100. Foldable devices.

[0037] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0039] This disclosure provides a foldable device 100, with reference to... Figure 1 As shown, the foldable device 100 includes a first magnetic component 1, a second magnetic component 2, and a folding component 3.

[0040] The first magnetic component 1 and the second magnetic component 2 are located on both sides of the folding component 3. The first magnetic component 1 includes a plurality of first magnetic elements 11, and the second magnetic component 2 includes a plurality of second magnetic elements 21. The number of first magnetic elements 11 and second magnetic elements 21 is equal, and at least one of the plurality of first magnetic elements 11 and the plurality of second magnetic elements 21 is an electromagnet A.

[0041] When the foldable device 100 is in the closed state, the positions of the plurality of first magnetic elements 11 and the plurality of second magnetic elements 21 correspond one-to-one.

[0042] In this way, by using one or more electromagnets A, the direction and strength of their magnetic fields can be adjusted by controlling the electromagnets A, so that the direction and magnitude of the magnetic force between the first magnetic component 1 and the second magnetic component 2 can be changed. When the foldable device 100 needs to be closed, it generates an attractive force to fix the two sides of the foldable device 100. When the foldable device 100 needs to be unfolded, it reduces the locking force on the two sides of the foldable device 100 by eliminating the attractive force or generating a repulsive force. The user can unfold the foldable device 100 by applying a small external force with one hand, avoiding the need for the user to operate with both hands, making the operation simple and convenient.

[0043] The foldable device 100 disclosed herein may also be referred to as a foldable terminal, a mobile foldable terminal, a foldable electronic device, etc. Exemplarily, the foldable device 100 may be a bi-foldable phone, a tri-foldable phone, a tablet computer, a laptop computer, a wearable device (e.g., a smartwatch), or it may be a digital camera, a DSLR / mirrorless camera, a gimbal camera, an action camera, a drone, or other professional shooting equipment. It should be understood that this disclosure does not specifically limit the specific technology or device form adopted by the foldable device 100. In the following description of embodiments, a bi-foldable phone is used as an example, but this disclosure is not limited thereto.

[0044] In some embodiments, refer to Figure 1 As shown, when electromagnet A is in the first state, the first magnetic component 1 and the second magnetic component 2 are both arranged in a Hellbeck array, and the strong magnetic sides of the first magnetic component 1 and the second magnetic component 2 are opposite to each other.

[0045] In a Helbeck array, the magnetization directions of adjacent magnets rotate at specific angles (e.g., 90° or 45°) to form a periodic structure, thereby enhancing the magnetic field on one side and weakening it on the other. In this way, the first magnetic component 1 and the second magnetic component 2, arranged in a Helbeck array, can achieve a higher magnetic field strength on one side.

[0046] In this way, the first magnetic component 1 and the second magnetic component 2 can maximize the magnetic field on one side with minimal magnet usage, thereby reducing the size of the first magnetic component 1 and the second magnetic component 2. At the same time, it can also weaken the magnetic field on the other side, thereby reducing unnecessary electromagnetic interference from the magnetic field to surrounding devices, which is beneficial for the miniaturization and thinning design of the foldable device 100.

[0047] In some embodiments, refer to Figure 1 and Figure 4 As shown, the multiple first magnetic components 11 and the multiple second magnetic components 21 are all arranged in a straight line. The straight-line arrangement of the first magnetic components 1 and the second magnetic components 2 results in higher space utilization of the foldable device 100 and also reduces the assembly of surrounding components inside the foldable device 100.

[0048] It is understood that the plurality of first magnetic elements 11 and the plurality of second magnetic elements 21 may also be arranged in other shapes, such as rings, waves or arcs, etc., and this disclosure does not impose any specific limitations on this.

[0049] In some embodiments, refer to Figure 1As shown, the number of the first magnetic component 11 and the second magnetic component 21 are both odd. When the foldable device 100 is in a folded state, the magnetic field direction of the first magnetic component 11 located at the edge of the first magnetic component 1 is parallel to the line connecting the first magnetic component 1 and the second magnetic component 2, and the magnetic field direction of the second magnetic component 21 located at the edge of the second magnetic component 2 is parallel to the line connecting the first magnetic component 1 and the second magnetic component 2.

[0050] In this way, the magnetic field direction of the magnetic component at the edge is parallel to the line connecting the first magnetic component 1 and the second magnetic component 2, and the magnetic field lines are concentrated, which can enable the magnetic field enhancement side to obtain a higher magnetic field strength, and can also avoid the magnetic field from being too divergent and interfering with other electronic components around it.

[0051] In some embodiments, electromagnet A is located at the edge of a plurality of first magnetic elements 11 arranged in a straight line, and / or, electromagnet A is located at the edge of a plurality of second magnetic elements 21 arranged in a straight line.

[0052] To achieve the same magnetic field strength, the size of electromagnet A will be larger than that of permanent magnet B in both the length and width directions of the magnetic components. Therefore, placing electromagnet A at the edge position allows for an appropriate increase in its area without affecting adjacent magnetic components.

[0053] It is understood that in some other embodiments, electromagnet A is located at the middle position among a plurality of linearly arranged first magnetic components 11, and / or, electromagnet A is located at the middle position among a plurality of linearly arranged second magnetic components 21. Here, the middle position refers to a non-edge position of the first magnetic component 1, and not just the position where the axis of symmetry of the first magnetic component 1 is located; or, the middle position refers to a non-edge position of the second magnetic component 2, and not just the position where the axis of symmetry of the second magnetic component 2 is located.

[0054] In some embodiments, the number of electromagnets A in the first magnetic element 11 and the second magnetic element 21 is one.

[0055] Since electromagnet A requires electricity to generate the corresponding magnetic field and has a large volume, using only one electromagnet A helps to reduce the energy consumption of the first magnetic component 1 and the second magnetic component 2, and reduce the size of the magnetic components.

[0056] In some embodiments, a first magnetic element 11 is an electromagnet A, and a first magnetic component 1 is located on a first side of the foldable device 100; or, a second magnetic element 21 is an electromagnet A, and a second magnetic component 2 is located on a first side of the foldable device 100, wherein the first side is the side where the camera module is located in the foldable device 100.

[0057] Because the foldable device 100 required for the camera module is quite thick, and the electromagnet A also requires a considerable thickness, placing the magnetic component containing electromagnet A and the camera module on the same side of the folding assembly 3 facilitates a thinner and lighter design on the other side of the folding assembly 3. Simultaneously, since the first side houses key hardware such as the motherboard, battery, camera module, and chips, its structural strength is high. Placing the magnetic component containing electromagnet A on the first side also improves the stability of electromagnet A and reduces the likelihood of damage to electromagnet A in the event of impacts, drops, or other accidents affecting the foldable device 100.

[0058] In some embodiments, refer to Figure 5 As shown, electromagnet A includes a first soft magnetic component 001, a second soft magnetic component 002, and a coil 003. The first soft magnetic component 001 and the second soft magnetic component 002 are arranged concentrically, and the coil 003 is located between the first soft magnetic component 001 and the second soft magnetic component 002.

[0059] Coil 003 is used to pass through and generate a corresponding magnetic field, and the first soft magnetic component 001 and the second soft magnetic component 002 are used to constrain the shape of the magnetic field and improve the utilization rate of the magnetic field.

[0060] Both the first soft magnetic component 001 and the second soft magnetic component 002 are components made of soft magnetic materials. Soft magnetic materials refer to a class of magnetic materials that have high permeability, low coercivity, low hysteresis loss, can respond quickly to an applied magnetic field, and are easily demagnetized. This disclosure does not specifically limit the material of the first soft magnetic component 001 and the second soft magnetic component 002; for example, they may be made of 430 stainless steel (SUS430), iron-cobalt alloys (such as Fe...). 50 Co 50 )wait.

[0061] In other embodiments, reference is made to Figure 6 As shown, electromagnet A includes a first soft magnetic component 001, a second soft magnetic component 002, a coil 003, and a third soft magnetic component 004. The coil 003 and the third soft magnetic component 004 are arranged concentrically, and the first soft magnetic component 001 and the second soft magnetic component 002 are located on both sides of the third soft magnetic component 004, respectively.

[0062] Coil 003 is used to pass through the current and generate a corresponding magnetic field. The first soft magnetic component 001, the second soft magnetic component 002 and the third soft magnetic component 004 are used to constrain the shape of the magnetic field and improve the utilization rate of the magnetic field.

[0063] The first soft magnetic component 001, the second soft magnetic component 002, and the third soft magnetic component 004 are all components made of soft magnetic materials. Soft magnetic materials refer to a class of magnetic materials that have high permeability, low coercivity, low hysteresis loss, can respond quickly to an applied magnetic field, and are easily demagnetized. This disclosure does not specifically limit the material of the first soft magnetic component 001 and the second soft magnetic component 002; for example, 430 stainless steel (SUS430) or iron-cobalt alloys (such as Fe) are acceptable materials.50 Co 50 )wait.

[0064] In some embodiments, refer to Figure 4 As shown, the first magnetic component 1 also includes a first magnetic conductor 12, which is disposed on the side of the first magnetic component 11 away from the second magnetic component 21 when the foldable device 100 is in the folded state.

[0065] The first magnetic conductive element 12 is located on the weak magnetic side of the first magnetic component 1, and the first magnetic conductive element 12 is connected to a plurality of first magnetic components 11 as a whole. The first magnetic conductive element 12 is used to enhance the structural strength of the first magnetic component 1, and can also further shield the magnetic field on the weak side, so that the magnetic field strength on the weak magnetic side is smaller or even close to zero, while the magnetic field strength on the strong magnetic side is larger, which facilitates the design of electromagnetic compatibility (EMC) of the foldable device 100.

[0066] In some embodiments, the second magnetic component 2 further includes a second magnetic conductor 22, which is disposed on the side away from the first magnetic conductor 11 when the foldable device 100 is in a folded state.

[0067] The second magnetic conductive element 22 is located on the weak magnetic side of the second magnetic component 2, and the first magnetic conductive element 12 is connected to multiple second magnetic components 21 as a whole. The second magnetic conductive element 22 is used to enhance the structural strength of the second magnetic component 2 and can further shield the weak magnetic field, making the magnetic field strength on the weak magnetic side smaller or even close to zero, while the magnetic field strength on the strong magnetic side is larger, which facilitates the design of electromagnetic compatibility (EMC) of the foldable device 100.

[0068] In some embodiments, a plurality of first magnetic elements 11 are connected to each other by adhesive, and a plurality of second magnetic elements 21 are connected to each other by adhesive. On the one hand, the adhesive can effectively disperse the stress of adjacent first magnetic elements 11 / second magnetic elements 21, thereby improving the structural strength of the first magnetic assembly 1 / second magnetic assembly 2.

[0069] At the same time, the adhesive can effectively fill the gap between adjacent first magnetic component 11 / second magnetic component 21, which helps to reduce magnetic flux leakage of the first magnetic component 1 / second magnetic component 2.

[0070] In some embodiments, the plurality of first magnetic components 11 are at the same height in the thickness direction of the foldable device 100, and the plurality of second magnetic components 21 are at the same height in the thickness direction of the foldable device 100. On the one hand, the same height facilitates the assembly between the magnetic components, eliminating the need for assemblers to check the correspondence between magnetic components at different positions and different heights; on the other hand, the same height results in a higher degree of flatness of the outer edges of the first magnetic component 1 and the second magnetic component 2, which helps to maintain a safe gap between each position of the first magnetic component 1 and the second magnetic component 2 and other components of the foldable device 100.

[0071] The following description, using the example of the first magnetic component 1 comprising three first magnetic elements 11 and the second magnetic component 2 comprising three second magnetic elements 21, wherein only one of the second magnetic elements 21 is an electromagnet A and the rest are permanent magnets B, further illustrates the specific working principle of the foldable device 100:

[0072] I. Closing process of foldable device 100

[0073] Reference Figure 1 As shown, electromagnet A is in the first state, and the first magnetic component 1 and the second magnetic component 2 are both arranged in a Hellbeck array, with the strong magnetic sides of the first magnetic component 1 and the second magnetic component 2 facing each other.

[0074] In this way, the first magnetic component 1 and the second magnetic component 2 attract each other, thereby pushing the foldable device 100 to gradually approach and abut against the two sides of the folding component 3, thereby achieving the closure of the foldable device 100.

[0075] By adjusting the magnitude of the current flowing through electromagnet A, and thus adjusting the magnetic field strength of electromagnet A, the attractive force of the first magnetic component 1 and the second magnetic component 2 plus the frictional resistance of the folding component 3 is greater than the unfolding force of the screen component. This improves the stability of the foldable device 100 in the closed state and prevents the foldable device 100 from gradually opening in unnecessary scenarios (e.g., when the user is carrying it or when it is placed on a table and not used by the user).

[0076] II. Foldable device 100% unfolding process

[0077] Example 1:

[0078] Reference Figure 2 As shown, electromagnet A is in the second state (electromagnet A is not energized). In this way, compared with electromagnet A being in the first state, the attractive force between the first magnetic component 1 and the second magnetic component 2 is reduced. The user can unfold the foldable device 100 by applying a small external force with one hand, avoiding the need for the user to operate with both hands. The operation is simple and convenient. That is, the force applied by the user + the unfolding force of the screen component > the attraction force of the first magnetic component 1 and the second magnetic component 2 + the frictional resistance of the folding component 3.

[0079] Example 2:

[0080] Reference Figure 3 As shown, electromagnet A is in the third state (compared to the first state, electromagnet A is energized in the reverse direction). In this way, by adjusting the magnetic field strength of electromagnet A, a repulsive force can be generated between the first magnetic component 1 and the second magnetic component 2. When the repulsive force of the first magnetic component 1 and the second magnetic component 2 plus the unfolding force of the screen component is greater than the frictional resistance of the folding component 3, the foldable device 100 can automatically unfold to the target angle.

[0081] This disclosure does not specifically limit the principle of the state switching of electromagnet A. For example, the controller of the foldable device 100 determines the attitude, position and usage status of the foldable device 100 through relevant sensors, and then adjusts the magnetic field direction and magnetic field strength of electromagnet A.

[0082] As another example, the user can manually switch the state of electromagnet A by using the relevant buttons on the mid-frame of the foldable device 100, thereby adjusting the magnetic field direction and magnetic field strength of electromagnet A.

[0083] In the description of this specification, the references to "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0084] It is understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0085] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0086] It is further understood that the terms "center," "longitudinal," "lateral," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "above," "on top," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0087] It is further understood that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the two components; they can refer to a direct connection between two components without the presence of other components, or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0088] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0089] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the solutions disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the scope of the claims.

[0090] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A foldable device, characterized in that, The foldable device includes a first magnetic component (1), a second magnetic component (2), and a folding component (3); The first magnetic component (1) and the second magnetic component (2) are located on both sides of the folding component (3). The first magnetic component (1) includes a plurality of first magnetic elements (11), and the second magnetic component (2) includes a plurality of second magnetic elements (21). The number of the first magnetic elements (11) and the number of the second magnetic elements (21) are equal, and at least one of the plurality of first magnetic elements (11) and the plurality of second magnetic elements (21) is an electromagnet (A). When the foldable device is in the closed state, the positions of the plurality of first magnetic elements (11) correspond one-to-one with the positions of the plurality of second magnetic elements (21).

2. The foldable device according to claim 1, characterized in that, When the electromagnet (A) is in the first state, the first magnetic component (1) and the second magnetic component (2) are both arranged in a Heilbeck array, and the strong magnetic sides of the first magnetic component (1) and the second magnetic component (2) are opposite to each other.

3. The foldable device according to claim 1, characterized in that, The plurality of first magnetic elements (11) and the plurality of second magnetic elements (21) are arranged in a straight line.

4. The foldable device according to claim 3, characterized in that, The number of the first magnetic component (11) and the second magnetic component (21) is odd. When the foldable device is in a folded state, the magnetic field direction of the first magnetic component (11) located at the edge of the first magnetic component (1) is parallel to the line connecting the first magnetic component (1) and the second magnetic component (2), and the magnetic field direction of the second magnetic component (21) located at the edge of the second magnetic component (2) is parallel to the line connecting the first magnetic component (1) and the second magnetic component (2).

5. The foldable device according to claim 3, characterized in that, The electromagnet (A) is located at the edge of a plurality of first magnetic elements (11) arranged in a straight line, and / or the electromagnet (A) is located at the edge of a plurality of second magnetic elements (21) arranged in a straight line.

6. The foldable device according to claim 1, characterized in that, The first magnetic component (1) further includes a first magnetic conductor (12), which is disposed on the side away from the second magnetic conductor (21) when the foldable device is in a folded state.

7. The foldable device according to claim 1, characterized in that, The second magnetic component (2) further includes a second magnetic conductor (22), which is disposed on the side away from the first magnetic conductor (11) when the foldable device is in a folded state.

8. The foldable device according to claim 1, characterized in that, The number of electromagnets (A) in the first magnetic component (11) and the second magnetic component (21) is one.

9. The foldable device according to claim 8, characterized in that, One of the first magnetic elements (11) is an electromagnet (A), and the first magnetic assembly (1) is located on the first side of the foldable device; or, one of the second magnetic elements (21) is an electromagnet (A), and the second magnetic assembly (2) is located on the first side of the foldable device; The first side is the side where the camera module is located in the foldable device.

10. The foldable device according to claim 1, characterized in that, The electromagnet (A) includes a first soft magnetic component (001), a second soft magnetic component (002), and a coil (003). The first soft magnetic component (001) and the second soft magnetic component (002) are arranged concentrically, and the coil (003) is located between the first soft magnetic component (001) and the second soft magnetic component (002).

11. The foldable device according to claim 1, characterized in that, The plurality of first magnetic components (11) are connected to each other by adhesive, and the plurality of second magnetic components (21) are connected to each other by adhesive.

12. The foldable device according to claim 1, characterized in that, The plurality of first magnetic elements (11) have the same height in the thickness direction of the foldable device, and the plurality of second magnetic elements (21) have the same height in the thickness direction of the foldable device.

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