Electronic device and driving mechanism thereof

Abstract

The application relates to an electronic device and a driving mechanism thereof. The electronic device comprises a shell assembly, a flexible display screen and a driving mechanism. The shell assembly comprises a first shell and a second shell connected to the first shell. The flexible display screen is connected to the first shell. The driving mechanism comprises a base, a guide rail and a movable piece. The base is fixedly connected to the second shell and is provided with a guide groove. The guide rail is fixedly connected to the first shell and is in sliding fit with the guide groove. The movable piece is arranged on the base, is connected to the first shell and is used for driving the first shell to slide relative to the second shell, so as to drive the flexible display screen to enter or exit the shell assembly and drive the guide rail to move along the guide groove. The guide rail, the guide groove and the movable piece are arranged on the base. The guide rail is integrated on the base of the driving mechanism. Compared with the arrangement that the guide rail and the movable piece are respectively connected to the second shell, the installation space can be saved, and the compactness of the internal structure layout of the electronic device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic devices, in particular to an electronic device and a driving mechanism thereof. BACKGROUND

[0002] The flexible screen has the characteristic of bendable display, which makes it possible for electronic devices equipped with the flexible screen to stretch and retract. When the flexible screen of such an electronic device is in the retracted state, the electronic device has a relatively small size; when the flexible screen is in the stretched state, the electronic device has a relatively large display area. In the related art, the electronic device can be equipped with a driving mechanism including a motor and a push rod, and the flexible screen is driven to stretch and retract by the driving mechanism cooperating with a sliding rail. However, these structures occupy a large installation space inside the electronic device, which reduces the compactness of the layout of the internal structure of the electronic device. SUMMARY

[0003] The first aspect of the embodiments of the present application provides an electronic device to improve the compactness of the layout of the internal structure of the electronic device.

[0004] An electronic device, comprising:

[0005] a shell assembly including a first shell and a second shell connected to the first shell;

[0006] a flexible display screen connected to the first shell; and

[0007] a driving mechanism including a base, a guide rail, and a movable member, the base being fixedly connected to the second shell, the base being provided with a guide groove, the guide rail being fixedly connected to the first shell and being in sliding cooperation with the guide groove, the movable member being arranged in the base and being connected to the first shell and being used to drive the first shell to slide relative to the second shell, so as to drive the flexible display screen to enter or exit the shell assembly and drive the guide rail to move along the guide groove.

[0008] The electronic device described above, since the base is provided with the guide groove, the guide rail is in sliding cooperation with the guide groove and is fixedly connected to the first shell, the movable member is arranged in the base and is connected to the first shell and is used to drive the first shell to slide relative to the second shell, the guide rail, the guide groove, and the movable member are all arranged in the base, which integrates the guide rail on the base of the driving mechanism, compared with the arrangement that the guide rail and the movable member are respectively connected to the second shell, the installation space can be saved, and the compactness of the layout of the internal structure of the electronic device is improved.

[0009] In one of the embodiments, the driving mechanism includes a driver and a transmission assembly, the driver is connected to the second shell or the base, an output end of the driver is linked with the transmission assembly, the transmission assembly is connected to the movable member and the base, and the driver is used to drive the movable member to move through the transmission assembly.

[0010] In one of the embodiments, the transmission assembly comprises a screw rod and a nut, the screw rod is rotatably arranged on the base and connected with the output end of the driver, the nut is connected with the screw rod and the movable member, and the driver is used to drive the screw rod to rotate so as to drive the movable member to move along the screw rod through the nut.

[0011] In one of the embodiments, the driving mechanism comprises a snap spring, the movable member is provided with a mounting hole, the nut is arranged in the mounting hole, and the snap spring is clamped on the nut.

[0012] In one of the embodiments, the base is provided with a mounting groove which is arranged at intervals with the guide groove, and the screw rod and the nut are arranged in the mounting groove.

[0013] In one of the embodiments, the end of the movable member away from the driver has a boss, the first shell is provided with a limiting groove, the boss is arranged in the limiting groove and used to abut against the opposite two side walls of the limiting groove so as to drive the first shell to slide relative to the second shell.

[0014] In one of the embodiments, the electronic device comprises a slide rail and a limiting member, the limiting member is fixedly connected with the second shell and arranged at intervals with the base, the slide rail is arranged in the limiting member and slidably matched with the limiting member, the slide rail is fixedly connected with the first shell and arranged in parallel with the guide rail.

[0015] In one of the embodiments, the limiting member is provided with a circumferentially closed through hole, and the slide rail is arranged in the through hole.

[0016] In one of the embodiments, in the direction perpendicular to the sliding direction of the first shell relative to the second shell, the guide rail is arranged close to one side edge of the second shell, and the slide rail is arranged close to the opposite side edge of the second shell.

[0017] In one of the embodiments, the flexible display screen comprises a fixed part and a free part, the fixed part is fixed relative to the position of the first shell, and the free part passes around the end of the second shell away from the first shell and extends into the shell assembly.

[0018] The second direction of the embodiments of the present application provides a mobile driving mechanism, which can be applied to an electronic device to improve the layout compactness of the internal structure of the electronic device.

[0019] A driving mechanism comprises a base, a guide rail and a movable member, the base is provided with a guide groove, the guide rail is in sliding fit with the guide groove, the movable member is movably arranged on the base, and the movement of the guide rail and the movable member on the base is independent of each other, and the extension direction of the guide groove is parallel to the moving direction of the movable member on the base.

[0020] In one of the embodiments, the driving mechanism comprises a driver, a screw rod and a nut, the driver is connected to the base, the output end of the driver is linked with the screw rod, the base is provided with a mounting groove which is spaced apart from the guide groove, the screw rod is rotatably arranged in the mounting groove, the nut is connected with the screw rod and the movable member, and the driver is used to drive the screw rod to rotate and drive the movable member to move along the screw rod through the nut. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0022] Figure 1 A schematic view of an electronic device of an embodiment, with the second housing in the second position;

[0023] Figure 2 A front view of the electronic device shown in Figure 1

[0024] Figure 3 A cross-sectional view of the electronic device shown in along A-A; Figure 2

[0025] Figure 4 A schematic view of an electronic device of an embodiment, with the second housing in the first position;

[0026] Figure 5 A schematic view of the electronic device shown in from another perspective; Figure 4

[0027] A schematic view of an electronic device of an embodiment, with the second housing in the second position, after removing part of the structure; Figure 6

[0028] A schematic view of an electronic device of an embodiment, with the second housing in the first position, after removing part of the structure; Figure 7

[0029] Figure 8 ​​​FIG. 1 is a schematic view of a driving mechanism of an electronic device according to an embodiment.

[0030] Reference signs:

[0031] 100, electronic device 10, housing assembly 12, first housing

[0032] 12a, limiting groove 14, second housing 142, rear cover

[0033] 20, flexible display screen 20a, fixed part 20b, free part

[0034] 30, guide 40, driving mechanism 41, driver

[0035] 42, transmission assembly 421, screw rod 423, nut

[0036] 43, base 43a, guide groove 43b, mounting groove

[0037] 44, guide rail 45, movable part 451, boss

[0038] 46, clamping spring 51, slide rail 52, limiting part

[0039] 52a, through hole DETAILED DESCRIPTION

[0040] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present application can be more thoroughly and completely understood.

[0041] As used herein, "electronic device" refers to a device capable of receiving and / or transmitting communication signals, including but not limited to, via any one or more of the following connection methods:

[0042] (1) via a wired connection method, such as via a public switched telephone network (PSTN), a digital subscriber line (DSL), a digital cable, a direct cable connection;

[0043] (2) via a wireless interface method, such as a cellular network, a wireless local area network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter.

[0044] Electronic devices configured to communicate over wireless interfaces can be referred to as "mobile terminals". Examples of mobile terminals include, but are not limited to, the following electronic devices:

[0045] (1) a satellite phone or a cellular phone;

[0046] (2) a Personal Communications System (PCS) terminal that can combine a cellular radiotelephone with data processing, facsimile, and data communications capabilities;

[0047] (3) a radiotelephone, a pager, an Internet / Intranet access, a Web browser, a notepad, a calendar, a Personal Digital Assistant (PDA) equipped with a Global Positioning System (GPS) receiver;

[0048] (4) a conventional laptop and / or palmtop receiver;

[0049] (5) a conventional laptop and / or palmtop radiotelephone transceiver, etc.

[0050] Please refer to Figure 1 , Figure 2 and Figure 3 , the electronic device 100 of the embodiment includes a shell assembly 10, a flexible display screen 20 and a guide 30. The shell assembly 10 is a hollow structure, and the flexible display screen 20, the guide 30 and the like can be arranged in the shell assembly 10. The electronic device 100 can further include a circuit board (not shown) and a battery (not shown), and the circuit board and the battery can be arranged in the shell assembly 10. The circuit board can integrate a processor, a power management module, a storage unit and a baseband chip and the like of the electronic device 100. The flexible display screen 20 is in communication connection with the circuit board, and the battery can supply power to the electronic components on the flexible display screen 20 and the circuit board. Of course, the electronic device 100 can further include a camera module, the camera module is in communication connection with the circuit board, and the battery can supply power to the camera module. It can be understood that the electronic device 100 of the embodiment of the application includes but is not limited to a terminal device such as a mobile phone, a tablet computer or other portable electronic device 100. In the embodiment of the application, a mobile phone is taken as an example for description.

[0051] The shell assembly 10 includes a first shell 12 and a second shell 14, and the second shell 14 and the first shell 12 can move relatively. Specifically, in the embodiment, the second shell 14 and the first shell 12 are in sliding connection. In other words, the second shell 14 can slide relative to the first shell 12 to make the end of the second shell 14 away from the first shell 12 and the end of the first shell 12 away from the second shell 14 move close to each other or away from each other.

[0052] Further, the second housing 14 is capable of sliding relative to the first housing 12 to a first position and a second position. In combination Figure 4 and Figure 5 , when the second housing 14 is in the first position, the electronic device 100 can obtain a relatively larger display area to improve the use experience of the electronic device 100; in combination Figure 2 , when the second housing 14 is in the second position, the electronic device 100 has a relatively smaller form factor, which is convenient for carrying. It can be understood that in the embodiments hereinafter, the first position, the second position and similar expressions refer to the relative position of the second housing 14 and the first housing 12. For the sake of simplicity, the similar expressions such as "the second housing 14 is in the first position" or "when in the first position" refer to that the second housing 14 is in the first position relative to the first housing 12, and the similar expressions such as "the second housing 14 is in the second position" or "when in the second position" refer to that the second housing 14 is in the second position relative to the first housing 12.

[0053] In the embodiments, taking the first position as a reference, the position of the end of the second housing 14 away from the first housing 12 and the end of the first housing 12 away from the second housing 14 can be more clearly determined. For example, Figure 4 when the second housing 14 is in the first position, the leftmost side of the electronic device 100 in the width direction is the end of the second housing 14 away from the first housing 12, and the rightmost side of the electronic device 100 in the width direction is the end of the first housing 12 away from the second housing 14.

[0054] In some embodiments, when the second housing 14 is in the first position, the overall width of the electronic device 100 is greater than the width in the second position, so that the width dimension of the exposed flexible display 20 is variable. In other words, the size of the electronic device 100 in the width direction is variable. In such embodiments, the interface of the electronic device 100, such as a data line jack or a charging line jack or an earphone jack, can be arranged at the end in the width direction. In other embodiments, when the second housing 14 is in the first position, the overall length of the electronic device 100 is greater than the length in the second position, so that the length dimension of the exposed flexible display 20 is variable. In other words, the size of the electronic device 100 in the length direction is variable. In such embodiments, the interface of the electronic device 100, such as a data line jack or a charging line jack or an earphone jack, can be arranged at the end in the length direction.

[0055] Again referring to Figure 2 and Figure 3, the flexible display 20 can include a fixed portion 20a and a free portion 20b, the fixed portion 20a is arranged opposite to the first housing 12 and fixed relative to the first housing 12. In the second position, the flexible display 20 bypasses the guide 30, and the free portion 20b of the flexible display 20 is accommodated in the shell assembly 10, so that part of the flexible display 20 is hidden in the shell assembly 10, and the part of the flexible display 20 hidden in the shell assembly 10 can not be used for display. In other words, the movement of the first housing 12 relative to the second housing 14 can cause at least part of the free portion 20b to be unfolded on the second housing 14, or the free portion 20b unfolded on the second housing 14 to be retracted into the shell assembly 10.

[0056] It can be understood that in the embodiments of the present application, the relative fixation of the positions of two objects means that the two objects cannot produce relative motion under normal circumstances, and the two objects with relative fixation of positions can have physical direct connection or indirect connection through intermediate structure. Taking the fixed portion 20a and the first housing 12 as an example, the fixed portion 20a and the first housing 12 are relatively fixed in position, which can be that the fixed portion 20a is in direct contact with the first housing 12, for example, using threaded fasteners or clamping to achieve direct fixation of the fixed portion 20a and the first housing 12, or the fixed portion 20a can be indirectly fixed to the first housing 12 through an adhesive layer, an intermediate connecting plate or other structure.

[0057] It can be understood that the fixed portion 20a and the free portion 20b can be distinguished in the following manner, referring to Figure 2 When the second housing 14 is in the second position relative to the first housing 12, the part of the flexible display 20 exposed outside the shell assembly 10 is the fixed portion 20a of the flexible display 20, and the part of the flexible display 20 accommodated in the shell assembly 10 can be regarded as the free portion 20b. In some embodiments, when the second housing 14 is in the second position, the fixed portion 20a exposed outside the shell assembly 10 is substantially rectangular in shape, and its size can be 5-6 inches, i.e. comparable to the size of the display of a general smart phone, so that the electronic device 100 is convenient to carry and use.

[0058] Referring to Figure 3The second housing 14 may further include a rear cover 142, which, in the second position, covers the free portion 20b of the flexible display screen 20. The rear cover 142 may have a light-transmitting area, allowing the portion of the flexible display screen 20 housed in the housing assembly 10 to also be used for display in the second position, enabling the user to view the information displayed on the flexible display screen 20 through the light-transmitting area, thereby expanding the usage scenarios of the electronic device 100. For example, in this embodiment, the electronic device 100 does not need a front-facing camera; a rear-facing camera module can be used to achieve functions such as selfies and video calls. The light-transmitting area may be made of transparent glass or formed by an opening in the rear cover 142. After the second housing 14 slides relative to the first housing 12 to the first position, at least a portion of the flexible display screen 20 housed in the housing assembly 10 is exposed. The exposed flexible display screen 20 can be used for display, giving the electronic device 100 a relatively large display area to improve the user experience.

[0059] Continue reading Figure 3 In this embodiment, the guide 30 is disposed at the end of the second housing 14 away from the first housing 12. During the process of the second housing 14 switching from a second position to a first position relative to the first housing 12, the guide 30 can guide the flexible display screen 20 to deform and unfold within the second housing 14. The guide 30 can limit the bending radius of the flexible display screen 20 within a suitable range to avoid damage to the flexible display screen 20 caused by an excessively small bending radius. Of course, the guide 30 can also prevent the flexible display screen 20 from having an excessively large bending radius, resulting in an excessively large thickness of the electronic device 100.

[0060] like Figure 3 As shown, in some embodiments, the guide 30 may be a rotating shaft structure with protruding teeth, and the flexible display screen 20 is linked with the guide 30 through engagement or other means. When the second housing 14 slides relative to the first housing 12, the portion of the flexible display screen 20 engaged with the guide 30 moves and unfolds or retracts into the housing assembly 10 via the guide 30.

[0061] In other embodiments, the guide 30 is a round shaft without teeth. During the transition of the second housing 14 from the second position to the first position, the guide 30 expands a portion of the flexible display screen 20 that is attached to it, exposing more of the flexible display screen 20 to the outside of the housing assembly 10 and placing it in a flat state. In this embodiment, the guide 30 is rotatably mounted on the second housing 14. During the gradual unfolding of the flexible display screen 20, the guide 30 can rotate with the movement of the flexible display screen 20 to reduce the resistance encountered by the flexible display screen 20 during unfolding and to reduce wear at the contact points between the guide 30 and the flexible display screen 20.

[0062] In other embodiments, the guide 30 can also be fixed on the second housing 14, and the guide 30 has a smooth surface. In the process of unfolding the flexible display 20 to the second housing 14, the guide 30 is in slidable contact with the flexible display 20 through the smooth surface thereof. In other words, in this embodiment, the guide 30 can be integrally formed or welded with the second housing 14, and the guide 30 can be regarded as a part of the second housing 14, and the free part 20b of the flexible display 20 bypasses the end of the second housing 14 away from the first housing 12 and extends into the shell assembly 10.

[0063] In the process of switching the second housing 14 from the first position to the second position, the flexible display 20 can be driven to retract by the guide 30, i.e. the part of the flexible display 20 unfolded to the second housing 14 is retracted into the shell assembly 10.

[0064] It can be understood that, in this embodiment, the first position and the second position can be regarded as two limit positions of the movement of the second housing 14 relative to the first housing 12. In the first position, the display area of the flexible display 20 reaches the maximum state, and in normal cases, the second housing 14 cannot move away from the first housing 12 any more. In the second position, the display area of the flexible display 20 reaches the minimum state, and in normal cases, the second housing 14 cannot move towards the first housing 12 any more. The first position and the second position can be achieved by setting a limiting structure. For example, one of the first housing 12 and the second housing 14 can be provided with a spring, and the other one is provided with a clamping groove, and in the first position and the second position, the spring is clamped in the clamping groove, so that the positions of the first housing 12 and the second housing 14 are relatively fixed.

[0065] It can be understood that, between the first position and the second position, a plurality of intermediate positions can also be provided to realize the positioning of the second housing 14 relative to the first housing 12 in the plurality of intermediate positions, and the flexible display 20 has different display areas in different intermediate positions, so as to expand the use scenarios of the electronic device 100. The plurality of intermediate positions can also be achieved by using a limiting structure.

[0066] Reference Figure 6 and Figure 7 The electronic device 100 can include a driving mechanism 40, which can be arranged in the shell assembly 10, and the driving mechanism 40 can be associated with the first housing 12 or the second housing 14 to drive the second housing 14 to move relative to the first housing 12, thereby driving the flexible display 20 to unfold or retract.

[0067] In some embodiments, the driving mechanism 40 employs a screw transmission mechanism, which includes a driver 41 connected with the circuit board and a transmission assembly 42 connected with the output of the driver 41. The transmission assembly 42 can include a screw rod 421 connected with the output of the driver 41 and a nut 423 in screw transmission with the screw rod 421. The driver 41 can be a stepper motor to obtain relatively high control accuracy. The driver 41 can be relatively fixed with the position of the second shell 14, and the nut 423 is used to drive the second shell 14 to move relative to the first shell 12 to drive the second shell 14 to move relative to the first shell 12 by the driving mechanism 40. In other embodiments, the driving mechanism 40 can also employ a gear transmission mechanism, for example, by driving the rack to move to achieve the movement of the second shell 14 relative to the first shell 12. It can be understood that the driving mechanism 40 can be omitted, and the user can directly move the second shell 14 and the first shell 12 relative to each other by manual or other means. It can be understood that the driver 41 can be a separate motor, or can include a combination of a motor and a gear reduction mechanism. The present application takes the screw transmission mechanism as an example for description.

[0068] The driving mechanism 40 can also include a base 43, a guide rail 44 and a movable part 45. The base 43 is generally rectangular block-shaped, which can be fixedly connected to the second shell 14 by threaded fasteners or welding or bonding or the like, and the base 43 is provided with a guide groove 43a, the extension direction of the guide groove 43a is parallel to the moving direction of the movable part 45 on the base 43. The housing of the driver 41 can be fixedly connected to the base 43. The guide groove 43a extends along the length direction of the base 43, and the length direction of the base 43 is consistent with the sliding direction of the second shell 14 relative to the first shell 12. The guide rail 44 is fixedly connected to the first shell 12 and is in sliding fit with the guide groove 43a. For example, in some embodiments, the guide rail 44 is long strip-shaped, one end of the guide rail 44 can be fixedly connected to the first shell 12 by threaded fasteners or welding or bonding or the like.

[0069] The screw rod 421 is rotatably arranged on the base 43, the movable part 45 is connected to the first shell 12 and the nut 423, and is used to drive the second shell 14 to slide relative to the first shell 12 to drive the flexible display screen 20 to enter and exit the shell assembly 10 through the first shell 12, and to drive the guide rail 44 to move along the guide groove 43a through the first shell 12. In other words, when the movable part 45 and the guide rail 44 are not connected with the first shell 12, their movements are independent of each other. For example, the base 43 can be provided with a mounting groove 43b spaced apart from the guide groove 43a, and the screw rod 421 and the nut 423 are arranged in the mounting groove 43b. The mounting groove 43b can be a through groove to reduce the weight of the base 43, or the mounting groove 43b can be a blind groove.

[0070] When the driver 41 is started, the driver 41 drives the screw rod 421 to rotate relative to the base 43, the screw rod 421 drives the nut 423 to move along the screw rod 421 and drives the movable piece 45 connected to the nut 423 to move, the movable piece 45 drives the first shell 12 to slide relative to the second shell 14, and the guide rail 44 moves with the first shell 12.

[0071] In some embodiments, an end of the movable piece 45 away from the driver 41 has a boss 451, which is a part of the movable piece 45. The first shell 12 is provided with a limiting groove 12a, the boss 451 is arranged in the limiting groove 12a and used to abut against opposite two side walls of the limiting groove 12a in the moving direction of the second shell 14 relative to the first shell 12, so as to drive the first shell 12 to slide relative to the second shell 14. In some embodiments, the width of the limiting groove 12a can be greater than the width of the boss 451, and opposite two sides of the boss 451 can be provided with a buffer structure such as a foam or a silica gel pad or a rubber pad, so as to prevent impact of the movable piece 45 during pushing or pulling the first shell 12 relative to the second shell 14, so as to protect the connecting structure and prevent the connecting structure from loosening after multiple movements.

[0072] The electronic device described above, since the base 43 is provided with the guide groove 43a, the guide rail 44 is slidingly fitted in the guide groove 43a and fixedly connected to the first shell 12, the movable piece 45 is arranged in the base 43 and connected to the first shell 12 and used to drive the first shell 12 to slide relative to the second shell 14, the guide rail 44, the guide groove 43a and the movable piece 45 are all arranged in the base 43, integrating the guide rail 44 on the base 43 of the driving mechanism 40, compared with the arrangement that the guide rail 44 and the movable piece 45 are respectively connected to the second shell 14, not only can save installation space and improve the compactness of the internal structure layout of the electronic device 100, but also saves the cost of the part of the guide structure and reduces the weight of the part of the guide structure, which is beneficial to the lightweight design of the electronic device 100.

[0073] For example, compared with the arrangement that the guide rail 44 is mounted on the second shell 14 through the guide structure independent of the base 43, the driving mechanism 40 of the present application can save an installation space of 439 cubic millimeters, and the saved space can provide installation space for other devices. The overall weight of the electronic device 100 adopting the driving mechanism 40 of the present application can also be reduced by 2.1 grams, so as to realize the lightweight design of the electronic device 100.

[0074] In another aspect, since the guide rail 44 and the screw rod 421 are both mounted to the base 43, the base 43 can serve as a common reference for machining and assembly, improving the machining and assembly precision of the guide rail 44 and the base 43. During assembly of the driving mechanism 40 and the second housing 14, the assembly reference is the base 43, which can ensure the assembly precision of the guide rail 44. In the related art, when the guide rail 44 is mounted to the second housing 14 through a guide structure independent of the base 43, the guide structure needs an assembly reference, and the screw rod 421 or the base 43 also needs an assembly reference. The two assembly references are associated, and the relative position precision of the two needs to be ensured to prevent the guide structure from interfering with the guide rail 44 when the screw rod 421 drives the movable part 45 to move. This structure setting has relatively high requirements for assembly precision. However, the driving mechanism 40 of the present application has the guide rail 44 and the screw rod 421 arranged on the base 43, and the relative position precision of the two can be ensured before assembly with the second housing 14. During assembly of the driving mechanism 40 and the second housing 14, the relative position error of the guide rail 44 and the screw rod 421 has little effect on assembly precision, so the assembly difficulty can be reduced and the assembly efficiency can be improved.

[0075] With reference to Figure 8 , the driving mechanism 40 can further include a snap spring 46. The movable part 45 is provided with a mounting hole (not shown in the figure), the nut 423 is arranged in the mounting hole, and the snap spring 46 is clamped on the nut 423 to fix the position of the nut 423 relative to the movable part 45. The mounting hole and the snap spring 46 can improve the convenience of assembly of the nut 423 and the movable part 45. The snap spring 46 can have appropriate elasticity to buffer the impact of the first housing 12 and the movable part 45 on the screw rod 421 and the driver 41 when the nut 423 drives the movable part 45 to move along the screw rod 421, thereby protecting the driving mechanism 40 and prolonging the service life of the driving mechanism 40.

[0076] With reference to Figure 6 and Figure 7 , the electronic device 100 can further include a sliding rail 51 and a limiting part 52. The limiting part 52 is fixedly connected to the second housing 14 and is arranged in spaced relation to the base 43. The sliding rail 51 is arranged in the limiting part 52 and is in sliding cooperation with the limiting part 52. The sliding rail 51 is fixedly connected to the first housing 12 and is arranged in parallel with the guide rail 44. The limiting part 52 is used to guide and limit the movement of the sliding rail 51. The sliding rail 51 and the guide rail 44 cooperate with each other to improve the stability of the movement of the first housing 12 relative to the second housing 14.

[0077] With reference to Figure 6 and Figure 7In some embodiments, the limiting member 52 is provided with a circumferentially closed perforation 52a, and the slide rail 51 is inserted into the perforation 52a. In other words, in this embodiment, the limiting member 52 is in the shape of a tube, and the slide rail 51 is inserted into the limiting member 52. In this embodiment, the limiting member 52 is a rectangular tube. In other embodiments, the limiting member 52 can also be a circular tube, a triangular tube, or other shapes, as long as the shape of the slide rail 51 matches the shape of the limiting member 52.

[0078] Further, in some embodiments, the guide rail 44 is arranged close to one side edge of the second housing 14 in the direction perpendicular to the sliding direction of the first housing 12 relative to the second housing 14, and the slide rail 51 is arranged close to the opposite side edge of the second housing 14. Further, the screw rod 421 and the movable member 45 can be arranged between the guide rail 44 and the slide rail 51. With this arrangement, the space between the drive mechanism 40 and the slide rail 51 can be used to install other components, so as to improve the compactness of the internal structure of the electronic device 100. Since the guide rail 44 and the slide rail 51 are arranged at the opposite side edges of the second housing 14, the guide rail 44 and the slide rail 51 can also be used to support the opposite side edges of the second housing 14, so as to improve the structural strength of the side edges.

[0079] The technical features of the above-described embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above-described embodiments are described, but it should be understood that any combination of the technical features is within the scope of the present disclosure.

[0080] The above-described embodiments only express several embodiments of the present application, and the description is specific and detailed, but it should not be understood as a limitation on the scope of the patent application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the scope of the patent protection of the present application should be subject to the appended claims.

Claims

1. An electronic device, comprising: The electronic device comprises: a shell assembly comprising a first shell and a second shell connected to the first shell; a flexible display screen connected to the first shell; and a driving mechanism comprising a base, a guide rail and a movable member, the base is fixedly connected to the second shell, and the base is provided with a guide groove, the guide rail is fixedly connected to the first shell and is in sliding fit with the guide groove, the movable member is arranged on the base and is connected to the first shell and is used to drive the first shell to slide relative to the second shell, so as to drive the flexible display screen to enter or exit the shell assembly and drive the guide rail to move along the guide groove, the guide groove extends along the length direction of the base, the length direction of the base is consistent with the sliding direction of the second shell relative to the first shell, and the extension direction of the guide groove is parallel to the moving direction of the movable member on the base; the driving mechanism comprises a transmission assembly, the transmission assembly is connected to the movable member and the base, the base is provided with a mounting groove which is arranged in a spaced manner with the guide groove, and the transmission assembly is arranged in the mounting groove. the driving mechanism comprises a driver, the driver is connected to the second shell or the base, and the output end of the driver is linked with the transmission assembly, and the driver is used to drive the movable member to move through the transmission assembly.

2. The electronic device of claim 1, wherein, the transmission assembly comprises a screw rod and a nut, the screw rod is rotatably arranged on the base and is linked with the output end of the driver, the nut is connected to the screw rod and the movable member, and the driver is used to drive the screw rod to rotate so as to drive the movable member to move along the screw rod through the nut.

3. The electronic device of claim 2, wherein, the driving mechanism comprises a snap spring, the movable member is provided with a mounting hole, the nut is arranged in the mounting hole, and the snap spring is clamped on the nut.

4. The electronic device of claim 3, wherein, an end of the movable member away from the driver has a boss, the first shell is provided with a limiting groove, the boss is arranged in the limiting groove and is used to abut against the opposite two side walls of the limiting groove, so as to drive the first shell to slide relative to the second shell.

5. The electronic device of claim 2, wherein, the electronic device comprises a slide rail and a limiting member, the limiting member is fixedly connected to the second shell and is arranged in a spaced manner with the base, the slide rail is arranged in the limiting member and is in sliding fit with the limiting member, the slide rail is fixedly connected with the first shell and is arranged in parallel with the guide rail.

6. The electronic device of any of claims 1-5, wherein, the limiting member is provided with a circumferentially closed perforation, and the slide rail is arranged in the perforation.

7. The electronic device of claim 6, wherein, in the direction perpendicular to the sliding direction of the first shell relative to the second shell, one side edge of the guide rail is arranged close to the second shell, and the other side edge of the guide rail is arranged close to the second shell.

8. The electronic device of claim 6, wherein, the flexible display screen comprises a fixed part and a free part, the fixed part is fixed relative to the position of the first shell, and the free part passes around one end of the second shell away from the first shell and extends into the shell assembly.

9. The electronic device of any of claims 1-5, wherein, ​ 10. A drive mechanism characterized by, The base is provided with a guide slot, the guide rail is in sliding fit with the guide slot, the movable part is movably arranged on the base, and the movement of the guide rail and the movable part on the base is independent of each other, the guide slot extends along the length direction of the base, and the extension direction of the guide slot is parallel to the movement direction of the movable part on the base. The driving mechanism comprises a transmission assembly, the transmission assembly is connected to the movable part and the base, the base is provided with a mounting slot which is arranged in space from the guide slot, and the transmission assembly is arranged in the mounting slot.

11. The drive mechanism of claim 10, wherein, The driving mechanism comprises a driver, a screw rod and a nut, the driver is connected to the base, the output end of the driver is linked with the screw rod, the screw rod is rotatably arranged in the mounting slot, the nut is connected with the screw rod and the movable part, and the driver is used to drive the screw rod to rotate and drive the movable part to move along the screw rod through the nut.

Images