Electronic devices

Abstract

The present application discloses an electronic device that can switch between a folded state and an unfolded state, comprising: a device body, in which a slide groove is provided; a flexible circuit board, which is arranged on a side of the device body close to the slide groove; a slider, which is arranged in the slide groove and connected to the flexible circuit board; during the process of switching the electronic device between the folded state and the unfolded state, the slider moves between a first position and a second position in the slide groove, and the flexible circuit board and the device body move relative to each other.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic products, and specifically relates to an electronic device. Background Art

[0002] Folding phones have become an important development path for the expansion of mobile phone functions and structural innovation. Folding phones include various forms such as left-right folding and up-down folding. The main and secondary bodies are connected by FPC. To ensure the stability of the position of the flexible printed circuit (FPC) in the body, the flexible printed circuit will be glued to the middle plate and the hinge cover at the hinge part, and at the same time, it will be glued to the middle frame at the upper and lower (left and right) middle frame slots.

[0003] The current bonding method determines that the flexible circuit board is fixed between the hinge middle plate and the middle frame. Under the current hinge structure design, when the mobile phone changes from unfolded to folded state, the hinge cover and the middle plate are fixed, and the synchronous swing arm will slide outward in the middle frame fixed bracket slide during the folding process. Therefore, from the overall perspective of the mobile phone, the middle frame slides outward relative to the hinge. It is very easy for the middle section of the flexible circuit board to be pulled by the middle frame, causing the flexible circuit board to be locally overstressed. During multiple folding-unfolding processes, the bending life of the flexible circuit board at the position where the force is too large will be significantly reduced, thereby affecting the service life of the electronic device. Summary of the invention

[0004] The present application aims to provide an electronic device that at least solves the problem that the bending life of existing folding screen electronic devices will be significantly reduced at positions where the force is too large, resulting in inability to be used normally.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] The embodiment of the present application further provides an electronic device, which can be switched between a folded state and an unfolded state, including:

[0007] A device body, wherein a slide groove is provided in the device body;

[0008] A slider, which is arranged in the slide groove and has a locked state and an unlocked state, and is used to connect a flexible circuit board;

[0009] During the process of the electronic device switching between the folded state and the unfolded state, the slider is in the unlocked state, and the slider can be moved from the first position in the slide groove to the second position in the slide groove; when the state of the electronic device is fixed, the slider is in the locked state, and the slider is fixed in the slide groove.

[0010] In an embodiment of the present application, a slide groove for accommodating a slider is provided in the device body, and a slider is provided to connect the flexible circuit board, so that the position of the flexible circuit board can be adjusted during the switching of the electronic device between the folded state and the unfolded state, so that the flexible circuit board moves with the slider, thereby avoiding the flexible circuit board from being pulled and subjected to excessive force at this position, thereby improving the bending life of the flexible circuit board and helping to improve the reliability of the entire machine and user experience.

[0011] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0013] Figure 1 is an overall schematic diagram of an electronic device provided according to an embodiment of the present application;

[0014] Figure 2 is a schematic diagram of the internal structure of an electronic device provided according to an embodiment of the present application;

[0015] Figure 3 is a schematic diagram of a viewing angle of a slider provided according to an embodiment of the present application;

[0016] Figure 4 is a schematic diagram of another viewing angle of a slider provided according to an embodiment of the present application;

[0017] Figure 5 is a schematic diagram of an electronic device provided according to an embodiment of the present application;

[0018] Figure 6 is a schematic diagram of the internal structure of a slider provided according to an embodiment of the present application;

[0019] Figure 7 is a schematic diagram of the external structure of an electronic device when the state is switched according to an embodiment of the present application;

[0020] Figure 8 is a schematic diagram of the internal structure of an electronic device when the state is switched according to an embodiment of the present application;

[0021] Fig. 9 is a schematic diagram of the external structure of an electronic device in a folded state according to an embodiment of the present application;

[0022] Fig.10 is a schematic diagram of the internal structure of an electronic device in a folded state according to an embodiment of the present application;

[0023] Fig.11 is a schematic diagram of the external structure of an electronic device in an unfolded state according to an embodiment of the present application;

[0024] Fig.12 is a schematic diagram of the internal structure of an electronic device in an unfolded state according to an embodiment of the present application;

[0025] Fig.13 is a schematic diagram of an electronic device provided according to another embodiment of the present application;

[0026] Fig.14 is a schematic diagram of an electronic device provided according to another embodiment of the present application;

[0027] Fig.15 is a schematic diagram of an electronic device provided according to yet another embodiment of the present application;

[0028] Reference numerals:

[0029] 100, device body; 1000, slide groove; 1001, first limit groove; 200, slider; 201, clamping part; 2010, protrusion; 202, elastic member; 203, bearing part; 204, guide member; 210, second magnetic member; 220, second electromagnet; 300, flexible circuit board; 400, bracket; 500, foam; 600, first magnetic member; 700, first electromagnet; 800, angle sensor; 801, first power supply; 900, distance sensor; 901, first piezoelectric body; 902, second piezoelectric body; 903, first metal block; 904, second metal block. DETAILED DESCRIPTION

[0030] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0031] The features of the terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] Combine the following Figures 1 to 4 The electronic device proposed in the embodiment of the present application is described, and the electronic device may be a smart phone, a game console, a tablet computer, an e-book reader or a wearable device. Of course, the electronic device may also be other devices, and the embodiment of the present invention does not limit this.

[0034] Taking a mobile phone as an example, the electronic device includes: a device body 100, a slider 200 and a flexible circuit board 300. The device body 100 can be a middle frame or other frame structure on the mobile phone, and a slide groove 1000 for setting the slider 200 is provided on the device body 100. The flexible circuit board 300 is arranged on the side of the device body 100 close to the slide groove 1000. The slider 200 is arranged in the slide groove 1000, and the slider 200 is used to connect the flexible circuit board 300. In this embodiment, a foam 500 is bonded under the bracket 400, and the bracket 400 and the foam 500 are locked on the device body 100 (middle frame) by screws. The bracket 400 and the foam 500 together press the flexible circuit board 300 and the slider 200, which plays a limiting role to prevent the slider 200 from moving up and down.

[0035] During the switching process between the folded state and the unfolded state of the electronic device, since the flexible circuit board 300 is connected to a relatively rotating part of the device body 100, the flexible circuit board 300 will be pulled during the relative rotation of the device body 100, so that the flexible circuit board 300 drives the slider 200 to move between the first position and the second position in the slide groove 1000, and the flexible circuit board 300 and the device body 100 move relatively. During the movement between the two positions, the movement trajectory of the slider 200 can be a straight line or a curve, depending on the movement of the flexible circuit board 300 when the electronic device is in the actual state.

[0036] In an embodiment of the present application, a slide groove for accommodating a slider is provided in the device body, and a slider is provided to connect the flexible circuit board, so that the position of the flexible circuit board can be adjusted during the switching of the electronic device between the folded state and the unfolded state, so that the flexible circuit board moves with the slider, thereby avoiding the flexible circuit board from being pulled and subjected to excessive force at this position, thereby improving the bending life of the flexible circuit board and helping to improve the reliability of the entire machine and user experience.

[0037] In one embodiment, if Figures 1 to 4 As shown, when the slider 200 is set in the slide groove, it has a locked state and an unlocked state. When the electronic device switches between the folded state and the unfolded state, the slider 200 is in the unlocked state. The slider 200 can move between the first position in the slide groove 1000 and the second position in the slide groove 1000 under the pull of the flexible circuit board 300. During the movement between the two positions, the movement trajectory of the slider 200 can be a straight line or a curve, which depends on the movement of the flexible circuit board 300 when the electronic device is in the actual state.

[0038] When the electronic device is fixed in a folded state, an unfolded state, or between the folded state and the unfolded state, the slider 200 is in a locked state, and the slider 200 is fixed in the slide groove 1000. That is, when the slider 200 is in the locked state, the flexible circuit board 300 is fixed to the device body 100 through the slider 200, thereby preventing the flexible circuit board 300 from moving.

[0039] Specifically, when the electronic device changes from the unfolded state to the folded state, the device body 100 will slide outward, the flexible circuit board 300 will be pulled by the device body 100, the slider 200 is in the unlocked state, the slider 200 can slide in the slide groove 1000, and the flexible circuit board 300 can slide relative to the device body 100. When the electronic device is in a completely folded state or in an unfolded state, or is fixed between the folded state and the unfolded state, the slider 200 is fixed in the slide groove 1000, and the flexible circuit board 300 can be well fixed to the device body 100 by setting the locked state.

[0040] In the embodiment of the present application, a slide groove 1000 for accommodating a slider 200 is provided in the device body, and a slider 200 having a locked state and an unlocked state is provided to connect the flexible circuit board 300, so that when the electronic device is fixed in a folded state, an unfolded state, or between a folded state and an unfolded state, the slider 200 is in a locked state, and the slider 200 is fixed in the slide groove 1000. In the process of switching between the folded state and the unfolded state of the electronic device, the slider 200 can be controlled to be in an unlocked state, thereby adjusting the position of the flexible circuit board 300, so that the flexible circuit board 300 moves with the slider 200, thereby avoiding the flexible circuit board 300 being pulled at this position and being subjected to excessive force, thereby improving the bending life of the flexible circuit board 300, and helping to improve the reliability and user experience of the whole machine.

[0041] It should be noted that, according to actual conditions, multiple slide grooves 1000 may be provided on the device body 100. Correspondingly, one or more sliders 200 may be provided in the slide groove 1000, each slider 200 being connected to the flexible circuit board 300. By providing multiple sliders 200 to connect the flexible circuit board 300, the stability of the electronic device when switching between the folded state and the unfolded state can be greatly enhanced.

[0042] According to the above embodiment, in one embodiment, if Figures 1 to 6 As shown, the slider 200 includes a clamping portion 201 , an elastic member 202 and a bearing portion 203 .

[0043] Among them, the clamping part 201 and the bearing part 203 can both be made of metal. The use of a metal shell can improve the strength of the slider 200. By designing its appearance, it can be installed in the corresponding slide groove 1000 of the device body 100, and can drive the slider 200 to slide along the length direction of the slide groove 1000. The elastic member 202 can be an elastic structure such as a spring or a spring. The bearing part 203 is used to connect the flexible circuit board 300, and the clamping part 201 cooperates with the elastic member 202 to control whether the entire slider 200 is clamped with the side wall of the slide groove 1000 or the bottom surface of the slide groove 1000, or whether the entire slider 200 is clamped with the side wall of the slide groove 1000 and the bottom surface of the slide groove 1000. The clamping part 201 is connected to the bearing part 203 through the elastic member 202. That is, the elastic member 202 is arranged between the clamping portion 201 and the bearing portion 203, the clamping portion 201 is arranged on the inner side to directly contact the slide groove 1000, and the bearing portion 203 is arranged on the outer side for connecting the flexible circuit board 300. In this embodiment, a plurality of symmetrically distributed springs are installed between the clamping portion 201 and the bearing portion 203, and there is a certain pre-compression after being assembled with the device body 100 (middle frame). The spring is installed between the clamping portion 201 and the bearing portion 203, and can provide a rebound force when it is pushed upward by an external force, ensuring that the clamping portion 201 can be pushed back to the original position after the external force is removed.

[0044] When the slider 200 is in a locked state, the elastic member 202 is in a first form, and the clamping portion 201 is clamped with the side wall or bottom surface of the slide groove 1000, or the clamping portion 201 is clamped with the side wall and bottom surface of the slide groove 1000 at the same time. At this time, under the clamping limit of the clamping portion 201, the entire slider 200 is fixed in the slide groove 1000.

[0045] When the slider 200 is in the unlocked state, the elastic member 202 is in the second state, and the deformation of the elastic member 202 in the first state is greater than the deformation of the elastic member 202 in the second state. The clamping portion 201 is separated from the side wall and / or bottom surface of the slide groove 1000, and the clamping portion 201, the elastic member 202 and the bearing portion 203 can move between the first position and the second position. At this time, the clamping portion 201 releases the slide groove 1000, and the entire slider 200 can slide in the slide groove 1000. In this process, since the slider 200 has a smaller relative outward movement than the original solution (this movement can be designed by the length of the slide groove 1000, the stiffness and friction of the elastic member 202, etc.), the flexible circuit board 300 will not be pulled, thereby improving the service life of the flexible circuit board 300.

[0046] In this embodiment, the bearing part 203 is provided with a groove, the clamping part 201 is connected to the groove, one end of the elastic member 202 is connected to the inner wall surface of the groove, and the other end of the elastic member 202 is connected to the clamping part 201. At this time, the bearing part 203 and the clamping part 201 construct a sealed cavity, and the elastic member is used to support the bearing part 203 and the clamping part 201. On the basis of ensuring the integrity of the slider 200, the weight of the slider 200 is reduced, and the elastic member 202 is prevented from directly contacting the outside world, which can effectively protect the elastic member 202. According to the demand for the size of the elastic force, the number of elastic members 202 can be set to multiple.

[0047] In one example, if Figures 1 to 6 As shown, one of the slide groove 1000 and the clamping portion 201 is provided with a protrusion 2010, and the other of the slide groove 1000 and the clamping portion 201 is provided with a first limiting groove 1001 matching the protrusion 2010. The protrusion 2010 and the first limiting groove 1001 can be matched in an arc shape, and the matching number can be designed in various ways according to actual needs. When the protrusion 2010 and the first limiting groove 1001 are mutually clamped, the slide groove 1000 and the clamping portion 201 are clamped.

[0048] When the slider 200 is in a locked state, the protrusion 2010 is engaged with the first limiting groove 1001, and the engaging portion 201 is engaged with the slide groove 1000 through the protrusion 2010 and the first limiting groove 1001. When the slider 200 is in an unlocked state, the protrusion 2010 is separated from the first limiting groove 1001.

[0049] In this embodiment, the clamping portion 201 is provided with a plurality of protrusions 2010 sequentially arranged along the running direction of the slider 200. The slide groove 1000 is provided with a plurality of first limiting grooves 1001 sequentially arranged along the running direction of the slider 200. During the movement of the slider 200, the protrusions 2010 and the first limiting grooves 1001 provide greater friction resistance.

[0050] Specifically, during the process of switching the whole device from the unfolded state to the folded state, Figure 7 and Figure 8 As shown, the device body 100 will slide outward, and when the stiffness and cross-sectional friction design of the elastic member 202 are appropriate, the clamping portion 201 is pushed upward under the pull of the flexible circuit board 300, and the protrusion 2010 is released from the first limiting groove 1001, and the slider 200 does not slide with the device body 100, and the slider 200 can slide relative to the device body 100. This embodiment can ensure that the slider 200 and the slide groove 1000 are fixed reliably at the mating position, and can also make the slider 200 and the slide groove 1000 slide relative to each other, thereby ensuring that the length of the middle part of the flexible circuit board 300 remains relatively unchanged, and preventing the flexible circuit board 300 from being pulled.

[0051] When the whole machine is fully folded, Fig. 9 and Fig.10 As shown, under the pulling of the flexible circuit board 300, the slider 200 slides to the right side of the slide groove 1000, and the clamping part 201 is pushed downward by the elastic member 202, and the protrusion 2010 is matched with the first limiting groove 1001 again, ensuring that the slider 200 and the device body 100 are well fixed.

[0052] When the whole machine is in the unfolded state, Fig.11 and Fig.12 As shown, under the pulling of the flexible circuit board 300, the slider 200 slides to the left side of the slide groove 1000, and the clamping part 201 is pushed downward under the action of the elastic member 202, completing the cooperation between the protrusion 2010 and the first limiting groove 1001, ensuring that the slider 200 and the device body 100 are well fixed.

[0053] Based on the above embodiments, in one embodiment, Figures 1 to 6 As shown, the slider 200 is provided with a guide member 204 on at least one side of the length direction of the slide slot 1000, and the slide slot 1000 is provided with a second limiting groove matching the guide member 204, and the second limiting groove extends in the slide slot 1000 along the length direction of the slide slot 1000. During the sliding process of the slider 200 in the slide slot 1000, under the limitation of the second limiting groove, since the guide member 204 can only move along the extension direction of the second limiting groove, the entire slider 200 can only move along the extension direction of the second limiting groove.

[0054] In this embodiment, two guide members 204 are provided on opposite sides of the slider 200, and the guide members 204 are guide plates. The front and rear sides of the slide groove 1000 are respectively provided with two second limiting grooves matching the guide members 204, and the two second limiting grooves are arranged in parallel. Under the limitation of the two second limiting grooves, the guide member 204 controls the slider 200 to move only along the extension direction of the guide member 204.

[0055] Based on the above embodiments, in one embodiment, Fig.13 As shown, one of the slider 200 and the slide slot 1000 is provided with a first magnetic member 600, and the other of the slider 200 and the slide slot 1000 is provided with a first electromagnet 700 arranged opposite to the first magnetic member 600. The first electromagnet 700 can repel or attract the first magnetic member 600 after being energized. The first magnetic member 600 can be a permanent magnet.

[0056] When the slider 200 is in the unlocked state, the first electromagnet 700 is powered on, the first electromagnet 700 and the first magnetic member 600 attract or repel each other, and the first magnetic member 600 and the first electromagnet 700 drive the slider 200 to move between the first position and the second position in the slide slot 1000. When the slider 200 is in the locked state, the first electromagnet 700 is powered off, and the slider 200 is fixed in the slide slot 1000.

[0057] In order to accurately control the position of the slider 200, Fig.13 As shown, the electronic device further includes: an angle sensor 800 and a distance sensor 900 .

[0058] Among them, the angle sensor 800 is arranged on the device body 100, and the angle sensor 800 is electrically connected to the first electromagnet 700 through the first power supply 801. The first electromagnet 700 is arranged on one side of the slide slot 1000. The angle sensor 800 adopts a Hall element, which is used to detect the rotation angle of the electronic device when switching between the folded state and the unfolded state. The angle sensor 800 controls the magnetic strength of the first electromagnet 700 through the rotation angle. The distance sensor 900 is electrically connected to the first electromagnet 700 through the second power supply. The distance sensor 900 is arranged on the other side of the slide slot 1000. The distance sensor 900 is used to detect the position of the slider 200 moving between the first position and the second position, and the start and stop of the first electromagnet 700 are controlled by the position of the slider 200.

[0059] During the control process, the relationship between the slip amount and the unfolding angle is first given according to the requirements. In the process of the whole machine from the unfolded state to the folded state, the angle sensor 800 obtains the required slip amount according to the different angles. At this time, the first power supply 801 and the second power supply are powered on, and the first electromagnet 700 generates a magnetic field in the same direction as the first magnetic part 600, thereby generating a repulsive force to push the slider to move. After the distance sensor 900 senses that it has moved a sufficient distance, the first power supply 801 is powered off, and the slider 200 is no longer subject to the repulsive force and stops sliding. The clamping part 201 is clamped with the slide groove 1000, so that the slider 200 is matched with the device body 100 again to ensure the stability of the structure. The first electromagnet 700 can modify the magnetism by modifying the current direction, and can also generate suction on the first magnetic part, so as to flexibly control the movement of the slider. By setting the angle sensor 800 and the distance sensor 900, it is possible to accurately control the precise sliding distance control at each position during the unfolding to folding process, and it is only necessary to energize the power supply during the process, without always controlling the corresponding sensor to be energized.

[0060] In order to accurately control the position of the slider 200, Fig.14 As shown, the electronic device further includes: a piezoelectric body (901, 902). One end of the piezoelectric body is connected to the side wall of the slide groove 1000, and the other end of the piezoelectric body is connected to the slider 200. The piezoelectric body can be made of memory metal, and the piezoelectric body is connected to a power source and can switch between a compressed state and an expanded state according to the current size.

[0061] In the process of switching between the folded state and the unfolded state of the electronic device, the piezoelectric body switches between the compressed state and the expanded state. Specifically, for example, when the piezoelectric body is set on the left side of the slide groove 1000, when the electronic device is in the unfolded state, the piezoelectric body is in the expanded state, and the slider 200 is driven to move to the right. After moving into place, the piezoelectric body remains in the expanded state, and the clamping part 201 is clamped with the slide groove 1000, so that the slider 200 is re-matched with the device body 100 to ensure the stability of the structure. When the electronic device is in the folded state, the piezoelectric body is in the compressed state, and the slider 200 is driven to move to the left. After moving into place, the piezoelectric body remains in the compressed state, and the clamping part 201 is clamped with the slide groove 1000, so that the slider 200 is re-matched with the device body 100 to ensure the stability of the structure.

[0062] Furthermore, if Fig.14As shown, the electronic device further includes: a first piezoelectric body 901 and a second piezoelectric body 902. The first piezoelectric body 901 and the second piezoelectric body 902 are respectively attached to the first side wall and the second side wall of the slide groove 1000, and the first side wall and the second side wall are opposite to each other, and the first piezoelectric body 901 and the second piezoelectric body 902 are both connected to a corresponding power source. The first piezoelectric body 901 and the second piezoelectric body 902 both have a compressed state and an expanded state. In the process of switching the electronic device between the folded state and the unfolded state, the first piezoelectric body 901 and the second piezoelectric body 902 alternately switch between the compressed state and the expanded state, so that the slider 200 moves between the first position and the second position in the slide groove 1000.

[0063] In this embodiment, the first piezoelectric body 901 is disposed on the first side wall of the slide groove 1000, and the second piezoelectric body 902 is disposed on the second side wall of the slide groove 1000. A first metal block 903 corresponding to the first piezoelectric body 901 can be disposed at a corresponding position on the slider 200, and a second metal block 904 corresponding to the second piezoelectric body 902 can be disposed at a corresponding position on the slider 200. The first metal block 903 and the second metal block 904 serve as electrodes.

[0064] During the control process, the relationship between the slip amount and the unfolding angle is first given according to the demand. In the process of the whole machine from unfolding to folding, the required slip amount is obtained according to the different angles. In the initial state, the slider 200 and the first metal block 903 are in a zero-matching state. During the folding process of the electronic device, the first piezoelectric body 901 is energized, and the first piezoelectric body 901 stretches under the voltage, which will push the slider 200 to slide to the right. The relationship between the deformation amount of the first piezoelectric body 901 and the applied voltage of the second piezoelectric body 902 can be one-to-one corresponding, so accurate slip amount control can be achieved. After moving to the target position, the clamping part 201 is clamped with the slide groove 1000 to make the slider 200 fit with the device body 100 again to ensure the stability of the structure. At this time, the first piezoelectric body 901 does not need to continue to be energized, and the first piezoelectric body 901 returns to its original state. In the folded state, the slider 200 slides to the right end, and the slider 200 is matched with the second metal block 904. When the electronic device changes from the folded state to the unfolded state, the second piezoelectric body 902 is energized, and the slider 200 can be pushed to the left in the same way. After moving to the target position, the clamping part 201 is clamped with the slide groove 1000 to make the slider 200 fit with the device body 100 again to ensure the stability of the structure. In this way, the two-way movement of the slider 200 can be ensured. By setting the first piezoelectric body 901 and the second piezoelectric body 902, accurate control can be provided to each position in the process of unfolding to folding, and accurate sliding distance control can be provided. The piezoelectric material is sensitive to reaction, and the deformation amount can be accurately controlled. And the power supply only needs to be energized during the process, and it does not need to be energized all the time.

[0065] In order to ensure the reliability of the cooperation between the slider 200 and the device body 100, as Fig.15As shown, one of the clamping part 201 and the bearing part 203 is provided with a second magnetic member 210, and the second magnetic member 210 can be a permanent magnet. The other of the clamping part 201 and the bearing part 203 is provided with a second electromagnet 220 arranged opposite to the second magnetic member 210. In this embodiment, the suction force of the magnet is used to ensure the release of the fit, which does not only rely on the fit form and the stiffness of the elastic member 202, thereby improving the flexibility of the design. In addition, the number of the second magnetic member 210 and the second electromagnet 220 can be adjusted according to the required preload force.

[0066] When the slider 200 is in a locked state, the second electromagnet 220 is powered off or the second electromagnet 220 repels the second magnetic member 210, the elastic member 202 is in the first form, the clamping portion 201 is clamped with the side wall or bottom surface of the slide groove 1000, or the clamping portion 201 is clamped with the side wall and bottom surface of the slide groove 1000 at the same time. At this time, under the clamping limit of the clamping portion 201, the entire slider 200 is fixed in the slide groove 1000.

[0067] When the slider 200 is in the unlocked state, the second electromagnet 220 and the second magnetic member 210 attract each other, the elastic member 202 is in the second state, and the deformation of the elastic member 202 in the first state is greater than the deformation of the elastic member 202 in the second state. The clamping portion 201 is separated from the side wall and / or bottom surface of the slide groove 1000, and the clamping portion 201, the elastic member 202 and the bearing portion 203 can move between the first position and the second position. At this time, the clamping portion 201 releases the slide groove 1000, and the entire slider 200 can slide in the slide groove 1000. In this process, since the slider 200 has a smaller relative outward movement amount compared to the original solution (this movement amount can be designed by the length of the slide groove 1000, the stiffness and friction of the elastic member 202, etc.), the flexible circuit board 300 will not be pulled, thereby improving the service life of the flexible circuit board 300.

[0068] In one embodiment, the device body 100 includes: a first middle frame and a second middle frame. The first middle frame is rotatably connected to the second middle frame through a hinge. A slide groove 1000 is provided in the first middle frame, a slider 200 is provided in the slide groove 1000, a first end of the flexible circuit board 300 is connected to the slider 200, and a second end of the flexible circuit board 300 is connected to the second middle frame.

[0069] When the electronic device switches between the folded state and the unfolded state, the first middle frame and the second middle frame rotate relatively. Since the flexible circuit board 300 is connected to the second middle frame, the flexible circuit board 300 can drive the slider 200 to move between the first position and the second position in the slide groove under the pulling of the second middle frame, so that the flexible circuit board can move relative to the first middle frame. This avoids the flexible circuit board 300 from being pulled and subjected to excessive force at this position, thereby increasing the bending life of the flexible circuit board 300 and helping to improve the reliability and user experience of the entire device.

[0070] At this time, if the slider 200 is set in the slide groove, it has a locked state and an unlocked state. When the electronic device switches between the folded state and the unfolded state (when the first middle frame rotates relative to the second middle frame), the slider 200 is in the unlocked state, the second middle frame pulls the flexible circuit board 300, and the flexible circuit board 300 drives the slider 200 to move between the first position in the slide groove 1000 and the second position in the slide groove 1000.

[0071] When the electronic device is fixed in a folded state, an unfolded state, or between the folded state and the unfolded state (when the first middle frame and the second middle frame are relatively fixed), the slider 200 is in a locked state, and the slider 200 is fixed in the slide groove 1000. That is, when the slider 200 is in the locked state, the flexible circuit board 300 is relatively fixed to the first middle frame through the slider 200, thereby preventing the flexible circuit board 300 from moving.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0073] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that: The electronic device can be switched between a folded state and an unfolded state, comprising: A device body, wherein a slide groove is provided in the device body; A flexible circuit board is arranged on a side of the device body close to the slide groove; A slider, the slider is arranged in the slide groove, the slider is connected to the flexible circuit board, and the slider has a locked state and an unlocked state; During the process of the electronic device switching between the folded state and the unfolded state, the slider moves between the first position and the second position in the slide groove, the flexible circuit board and the device body move relatively, and the slider is in an unlocked state; when the state of the electronic device is fixed, the slider is in the locked state and is fixed in the slide groove.

2. The electronic device according to claim 1, characterized in that: The slider comprises: a clamping portion, an elastic member and a bearing portion; the bearing portion is connected to the flexible circuit board, and the clamping portion is connected to the bearing portion through the elastic member; When the slider is in the locked state, the elastic member is in a first form, and the clamping portion is clamped with the side wall and the bottom surface of the slide slot, or is clamped with the bottom surface of the slide slot; when the slider is in the unlocked state, the elastic member is in a second form, and the clamping portion is detached from the side wall and the bottom surface of the slide slot, or is detached from the bottom surface of the slide slot, and the clamping portion, the elastic member and the bearing portion can move between the first position and the second position; wherein the deformation amount of the first form is greater than the deformation amount of the second form.

3. The electronic device according to claim 2, characterized in that: One of the slide groove and the clamping portion is provided with a protrusion, and the other of the slide groove and the clamping portion is provided with a first limiting groove; when the slider is in the locked state, the protrusion is clamped with the first limiting groove; when the slider is in the unlocked state, the protrusion is separated from the first limiting groove.

4. The electronic device according to claim 2, characterized in that: The bearing part is provided with a groove, the clamping part is connected to the groove, the bearing part and the clamping part construct a sealed cavity, one end of the elastic part is connected to the inner wall surface of the groove, and the other end of the elastic part is connected to the clamping part.

5. The electronic device according to claim 1, characterized in that: The sliding block is provided with a guide piece on at least one side of the slide groove in the length direction. The slide groove is provided with a second limiting groove matching the guide piece. The second limiting groove extends in the slide groove along the length direction of the slide groove.

6. The electronic device according to any one of claims 1 to 5, characterized in that: One of the slider and the slide slot is provided with a first magnetic member, and the other of the slider and the slide slot is provided with a first electromagnet; When the slider is in the unlocked state, the first electromagnet is energized, and the first magnetic member and the first electromagnet drive the slider to move between the first position and the second position; when the slider is in the locked state, the first electromagnet is de-energized, and the slider is fixed in the slide groove.

7. The electronic device according to any one of claims 1 to 5, characterized in that: The electronic device further comprises: A piezoelectric body, one end of which is connected to the side wall of the slide groove, and the other end of which is connected to the slider; the piezoelectric body has a compressed state and an expanded state; During the process of the electronic device switching between the folded state and the unfolded state, the piezoelectric body switches between the compressed state and the expanded state.

8. The electronic device according to any one of claims 1 to 5, characterized in that: The electronic device further comprises: A first piezoelectric body and a second piezoelectric body are respectively attached to a first side wall and a second side wall of the slide groove, and the first side wall and the second side wall are opposite to each other; The first piezoelectric body and the second piezoelectric body both have a compressed state and an expanded state; during the process of the electronic device switching between the folded state and the unfolded state, the first piezoelectric body and the second piezoelectric body alternately switch between the compressed state and the expanded state to make the slider move between the first position and the second position in the slide groove.

9. The electronic device according to any one of claims 1 to 5, characterized in that: The device body comprises: a first middle frame and a second middle frame; The first middle frame is rotatably connected to the second middle frame, the first middle frame is provided with the slide groove, one end of the flexible circuit board is connected to the slide block, and the second end of the flexible circuit board is connected to the second middle frame.

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