Driving device and electronic equipment

Abstract

The application provides a driving device and electronic equipment; the driving device comprises a first shell, a driving assembly and a second shell; the driving assembly comprises a first guide rail, a second guide rail and a slider; the first guide rail and the second guide rail are made of conductive material and are fixed to the first shell; the slider is connected between the first guide rail and the second guide rail and is used for electrically connecting the first guide rail and the second guide rail; the first guide rail and the second guide rail can be connected with the positive and negative poles of a power supply and form a current loop through the slider; the slider can move in a first direction under the action of a magnetic field force generated by the first guide rail and the second guide rail; and the second shell is fixedly connected with the slider. The driving device can realize the driving of the relative sliding of the first shell and the second shell of the electronic equipment by arranging two electrically conductive guide rails and arranging the slider between the two guide rails to realize the electrical connection of the two guide rails; and the driving device has the characteristics of simple structure, high reliability and long service life.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic equipment, in particular to a driving device and an electronic equipment with the same. BACKGROUND

[0002] In the driving mechanism of electronic equipment, such as the driving mechanism of slide-roll mobile phone, telescopic camera mobile phone and the like, a driving structure of motor screw rod is mostly adopted. However, the driving structure of motor screw rod has a complex structure, and if lubrication is not good or the service time is long, fine particles may be generated due to friction, thereby causing the internal electronic components of the electronic equipment to be short-circuited. At the same time, the friction of the screw rod and the like will reduce the motion accuracy and the motion life. Therefore, it is an urgent technical problem to develop a driving mechanism with a simple and reliable structure and a long service life for use in electronic equipment. SUMMARY

[0003] The first aspect of the embodiment of the present application provides a driving device, comprising:

[0004] a first shell;

[0005] a driving assembly, comprising:

[0006] a first guide rail made of conductive material and fixed to the first shell;

[0007] a second guide rail made of conductive material and fixed to the first shell;

[0008] a sliding block connected between the first guide rail and the second guide rail and used for electrically connecting the first guide rail and the second guide rail; wherein the first guide rail and the second guide rail can be connected with positive and negative poles of a power supply respectively and form a current loop through the sliding block, and the sliding block can move in a first direction under the action of magnetic field force generated by the first guide rail and the second guide rail;

[0009] a second shell fixedly connected with the sliding block.

[0010] In addition, the embodiment of the present application further provides an electronic equipment, which comprises the driving device according to any one of the above embodiments.

[0011] The driving device provided by the embodiment of the present application has the characteristics of simple structure, high reliability and long service life, by setting two electrically conductive guide rails and a sliding block capable of electrically connecting the two guide rails between the two guide rails, and using the principle of Lorentz electromagnetic force of left-hand rule to drive the relative sliding of the first shell and the second shell of the electronic equipment. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 is a structural schematic diagram of a first state of an electronic device in an embodiment of the present application;

[0014] Figure 2 is a structural schematic diagram of a first state of an electronic device in an embodiment of the present application; Figure 1

[0015] Figure 3 is a partial structural exploded schematic diagram of an electronic device in an embodiment of the present application; Figure 2

[0016] Figure 4 is a structural schematic diagram of a first shell in an embodiment of the present application; Figure 3

[0017] Figure 5 is a structural exploded schematic diagram of a second shell in an embodiment of the present application; Figure 3

[0018] Figure 6 is a partial structural cross-sectional schematic diagram of an electronic device along line A-A in an embodiment of the present application; Figure 2

[0019] Figure 7 is a structural cross-sectional schematic diagram of a second shell in an embodiment of the present application; Figure 6

[0020] Figure 8 is a partial structural perspective schematic diagram of an electronic device; Figure 2

[0021] Figure 9a is a schematic diagram of magnetic fields formed by two guide rails arranged in parallel;

[0022] Figure 9b is a schematic diagram of magnetic fields formed in the middle of two guide rails arranged in parallel;

[0023] Figure 9c is a schematic diagram of force directions of a slider;

[0024] Figure 10 is a partial structural perspective schematic diagram of another embodiment of an electronic device of the present application;

[0025] Figure 11 is a partial structural perspective schematic diagram of still another embodiment of an electronic device of the present application;

[0026] Figure 12 ​​​​​​​is a structural schematic diagram of another embodiment of the electronic device of the present application;

[0027] Figure 13 is Figure 12 is a partial structural perspective schematic diagram of the electronic device of the present application;

[0028] Figure 14 is a structural composition block diagram schematic diagram of the electronic device of the embodiment of the present application. DETAILED DESCRIPTION

[0029] The present application will be further described below in conjunction with the drawings and embodiments. It is particularly pointed out that the following embodiments are only for illustrating the present application, but not for limiting the scope of the present application. Similarly, the following embodiments are only part of the embodiments of the present application, but not all the embodiments of the present application, and all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of the present application.

[0030] The terms “first”, “second”, “third” in the embodiments of the present application are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first”, “second”, “third” can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of “a plurality of” is at least two, such as two, three, etc., unless otherwise specifically limited. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only for explaining the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. The terms “include” and “have” and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or components inherent to the process, method, product or device.

[0031] In this document, the term “embodiment” means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily mutually exclusive or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0032] As used herein, "electronic device" (or simply "terminal") includes, but is not limited to, a device configured to receive / transmit communication signals via a wired line connection (such as via a public switched telephone network (PSTN), a digital subscriber line (DSL), a digital cable, a direct cable connection, and / or another data connection / network) and / or via a wireless interface (e.g., for 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, and / or another communication terminal). A communication terminal configured to communicate through a wireless interface can be referred to as a "wireless communication terminal", a "wireless terminal", or a "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; personal communication system (PCS) terminals that can combine a cellular radiotelephone with data processing, facsimile, and data communications capabilities; PDAs that can include a radiotelephone, a pager, Internet / Intranet access, a Web browser, a calendar, a note pad, a to-do list, and / or a global positioning system (GPS) receiver; and conventional laptop and / or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A handset is an electronic device configured with a cellular communication module.

[0033] An electronic device is provided in embodiments of the present application. Please refer to Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of a first state of an embodiment of the electronic device of the present application, Figure 2 is Figure 1 a structural schematic diagram of the first state of the electronic device in embodiments of the present application. It should be noted that the electronic device in the present application can include a handset, a tablet computer, a notebook computer, a wearable device, etc. In embodiments of the present application, a handset with a slide screen structure is taken as an example for illustration. Among them, Figure 1 the state in the figure is an unfolded state of the handset, while Figure 2 the state in the figure is a closed state.

[0034] Specifically, please refer to Figure 3 , Figure 3 is Figure 2 a partial structural exploded schematic diagram of the electronic device in embodiments of the present application. The electronic device includes a driving device 10 and a flexible display screen 20. Among them, the driving device 10 includes a first housing 100, a second housing 200, and a driving assembly 300.

[0035] Optionally, please refer to Figure 4 , Figure 4 is Figure 3The first housing 100 in the embodiment includes a bottom wall 110, a side wall 120, and a top wall 130. The side wall 120 is connected to the edge of the bottom wall 110 and extends in a direction away from the plane where the bottom wall 110 is located. The top wall 130 is connected to the side wall 120. The bottom wall 110, the side wall 120, and the top wall 130 together form an accommodating space 1000 with one end open. The top wall 130 is used to support the flexible display screen 20.

[0036] In some embodiments, at least a portion of the structure of the second housing 200 is disposed within the receiving space 1000, and at least a portion of the structure of the second housing 200 can slide out of and into the receiving space 1000 from the opening; please continue reading Figure 1 , Figure 1 The middle section is a structural diagram of the second housing 200 driving the flexible display screen 20 into a stretched state.

[0037] In this embodiment, the bottom wall 110 can be a rectangular structure, and the side wall 120 further includes a first side wall 121, a second side wall 122 and a third side wall 123. The first side wall 121 and the second side wall 122 are arranged opposite to each other and are respectively connected to the edge of the bottom wall 110. The third side wall 123 is connected to the first side wall 121, the second side wall 122, the bottom wall 110 and the top wall 130 respectively. One end of the third side wall 123 is an opening for the second housing 200 to slide out and slide into the receiving space 1000.

[0038] Please see Figure 5 , Figure 5 yes Figure 3 The schematic diagram of the structure of the second housing in this embodiment shows that the second housing 200 includes a first support plate 210, a second support plate 220, a top plate 230, and rollers 240. The top plate 230 is connected to the first support plate 210 and the second support plate 220 on opposite sides, and the rollers 240 are connected to the first support plate 210 and the second support plate 220 on both ends. The rotation axis of the rollers 240 (Y direction in the figure) is parallel to the relative sliding direction of the second housing 200 and the first housing 100. Figure 1 (in the X direction) perpendicular. The outer wall dimensions of the first support plate 210 and the second support plate 220 are slightly smaller than the inner wall dimensions of the first side wall 121 and the second side wall 122 of the first housing 100.

[0039] Please refer to the following: Figure 6 and Figure 7 , Figure 6 yes Figure 2 A partial cross-sectional view of the electronic equipment along line AA. Figure 7 yes Figure 6Figure 6 is a schematic view of a cross section of the second housing, in some embodiments, the second housing 200 further comprises an operation plate 250, the operation plate 250 is connected to the first support plate 210 and the second support plate 220 respectively, and is adjacent to the roller 240, a gap 201 is provided between the operation plate 250 and the roller 240, and the flexible display 20 is arranged in the gap 201. Please continue to refer to Figure 2 When the first housing 100 and the second housing 200 are in a closed state or a minimum state, the operation plate 250 covers the opening of the first housing 100.

[0040] Optionally, the roller 240 is arranged adjacent to the first support plate 210 and the second support plate 220 away from the third side wall 123; the roller 240 is used for rolling contact with the flexible display 20. Please continue to refer to Figure 5 And Figure 7 The second housing 200 further comprises a back plate 260, the back plate 260 is connected to the first support plate 210 and the second support plate 220 respectively, the back plate 260 is arranged parallel to the top plate 230, the first support plate 210, the second support plate 220, the back plate 260, the top plate 230 and the operation plate 250 jointly form a containing cavity 2000, the non-display area of the flexible display 20 is accommodated in the containing cavity 2000, and the back plate 260 is used for supporting and shielding the part of the flexible display 20 located in the containing cavity 2000.

[0041] Please continue to refer to Figure 6 One end of the flexible display 20 is connected to the first housing 100, and specifically can be connected to the third side wall 123 of the first housing 100. The other end of the flexible display 20 is movably arranged in the containing space 1000 of the first housing 100, and specifically can be arranged in the containing cavity 2000 of the second housing 200; the flexible display 20 can be unfolded or rolled up with the relative sliding of the second housing 200 and the first housing 100, so as to change the area covered on the first housing 100 and the second housing 200, wherein the part of the flexible display 20 covered on the first housing 100 and the second housing 200 is the display area of the flexible display 20; that is Figure 2 The area of the flexible display 20 exposed on the top surface (external) part. It should be noted that the display area and the non-display area of the flexible display 20 in the embodiments of the present application are only used to illustrate which part of the flexible display 20 is used for picture display in different states (according to the relative position relationship between the first housing 100 and the second housing 200), the overall structure of the flexible display 20 can have display function, only in different states, part of the area is in the screen-off state (i.e. the non-display area mentioned above), and the other part of the area is in the display state (the display area).

[0042] Please refer toFigure 2 、 Figure 3 and Figure 8 , Figure 8 is Figure 2 a partial structure perspective schematic diagram of the driving assembly 300, which includes a first guide rail 310, a second guide rail 320, and a slider 330. Among them, the first guide rail 310 and the second guide rail 320 are both made of conductive materials, which can be metal, alloy material, carbon, etc. The second guide rail 320 is arranged in parallel adjacent to the first guide rail 310. The slider 330 is connected between the first guide rail 310 and the second guide rail 320, and is used for electrically conductive connection of the first guide rail 310 and the second guide rail 320. Among them, the material of the slider 330 can be made of conductive material in whole structure, or at least part of the structure is made of conductive material, which can realize the electrically conductive connection of the first guide rail 310 and the second guide rail 320, which is not limited here. The slider 330 extends in the direction perpendicular to the first direction (X direction in the figure), that is, the Y direction in the figure.

[0043] Among them, the first guide rail 310 and the second guide rail 320 can be respectively connected with the positive and negative poles of the power supply and form a current loop through the slider 330. The slider 330 can move along the direction (X direction in the figure, that is, the first direction) in which the first guide rail 310 and the second guide rail 320 extend under the action of the magnetic field force generated by the first guide rail 310 and the second guide rail 320.

[0044] Please refer to Figure 9a to Figure 9c , Figure 9a is a schematic diagram of the magnetic field formed by the two parallel guide rails respectively, Figure 9b is a schematic diagram of the magnetic field formed in the middle of the two parallel guide rails, Figure 9c is a schematic diagram of the force direction of the slider, wherein the two parallel guide rails (the first guide rail 310 and the second guide rail 320) are energized, and each can form an electromagnetic field in the surrounding direction according to the right-hand rule, as shown in Figure 9a . Then, the magnetic field formed in the middle of the two parallel guide rails is as shown in Figure 9b (vertically upward), and the direction of the force on the slider 330 in the magnetic field formed by the two guide rails is toward the right side in Figure 9c according to the left-hand rule. The slider 330 will move in the direction of the force as long as the guide rails (the first guide rail 310 and the second guide rail 320) are continuously energized.

[0045] Among them, the first guide rail 310 and the second guide rail 320 are respectively fixed on the first shell 100, and the second shell 200 is fixedly connected with the slider 330, so that the first shell 100 and the second shell 200 can change the fitting state (switch between the states in Figure 1 and Figure 2 ) under the driving of the driving assembly 300.

[0046] Optionally, please continue to refer to Figure 8 The driving device 10 can also include a power supply assembly 400 electrically connected to the first guide rail 310 and the second guide rail 320, respectively, for providing electric energy and controlling the current parameters of the current input to the first guide rail 310 and the second guide rail 320, including the size and direction of the current. By inputting currents in different directions to the first guide rail 310 and the second guide rail 320, the reciprocating movement of the slider 330 along the first direction (X direction) can be realized.

[0047] Please refer to Figure 10 , Figure 10 is a partial structure perspective schematic diagram of another embodiment of the electronic device of the present application. Unlike the previous embodiment, the slider 330 in this embodiment includes a first slider 331 and a second slider 332; the first slider 331 and the second slider 332 are respectively arranged across the first guide rail 310 and the second guide rail 320, and are respectively used for electrically connecting the first guide rail 310 and the second guide rail 320.

[0048] Among them, the first guide rail 310 and the second guide rail 320 are respectively fixedly arranged on the first shell 100, and the first slider 331 and the second slider 332 are fixedly arranged on the second shell 200. When the flexible display screen 20 needs to be unfolded, the guide rail is powered from the left side of the figure, the first slider 331 forms a loop with the guide rail, and then expands outward under stress. The second slider 332 does not have current flowing through it during the unfolding process, so it can expand together with the movement of the second shell 200. When the flexible display screen 20 needs to be retracted, the left side of the guide rail is powered off and the right side is powered on at this time. The second slider 332 forms a loop with the guide rail and moves to the left under stress. During this process, the first slider 331 does not have current flowing through it, so it can retract together with the movement of the second shell 200. In this way, by driving the movement of the first slider 331 and the second slider 332, the adjustment of the opening and closing size of the flexible display screen 20 is realized.

[0049] Optionally, the driving device 10 in this embodiment can also include a power supply assembly 400 electrically connected to the first guide rail 310 and the second guide rail 320, respectively, for providing electric energy and controlling the current parameters of the current input to the first guide rail 310 and the second guide rail 320, including the size, direction, and access position of the current.

[0050] Please refer to Figure 11 , Figure 11is a partial structure perspective view of another embodiment of the electronic device, and different from the foregoing embodiments, the driving device 10 in this embodiment includes two groups of driving assemblies, i.e., a first driving assembly 300a and a second driving assembly 300b. The first driving assembly 300a includes a first guide rail 310a, a second guide rail 320a, and a first slider 330a. The first guide rail 310a and the second guide rail 320a can also be made of conductive material; the second guide rail 320a is arranged in parallel and adjacent to the first guide rail 310a; the first slider 330a is connected across the first guide rail 310a and the second guide rail 320a, and is used for electrically connecting the first guide rail 310a and the second guide rail 320a; wherein the first guide rail 310a and the second guide rail 320a can be connected with the positive and negative poles of the power supply (power supply assembly 400) respectively and form a current loop through the first slider 330a, and the first slider 330a can move in a first direction (X1 direction in the figure) under the action of the magnetic field force generated by the first guide rail 310a and the second guide rail 320a; the first guide rail 310a and the second guide rail 320a are fixedly arranged in the first housing 100.

[0051] Optionally, the second driving assembly 300b includes a third guide rail 310b, a fourth guide rail 320b, and a second slider 330b; similarly, the third guide rail 310b and the fourth guide rail 320b can be made of conductive material; the fourth guide rail 320b is arranged in parallel and adjacent to the third guide rail 310b; the second slider 330b is connected across the third guide rail 310b and the fourth guide rail 320b, and is used for electrically connecting the third guide rail 310b and the fourth guide rail 320b; wherein the third guide rail 310b and the fourth guide rail 320b can be connected with the positive and negative poles of the power supply (in this embodiment, it can be the power supply assembly 400) respectively and form a current loop through the second slider 330b, and the second slider 330b can move in a second direction (X2 direction in the figure) under the action of the magnetic field force generated by the third guide rail 310b and the fourth guide rail 320b; wherein the second direction is opposite to the first direction, thereby realizing the unfolding and folding of the electronic device; wherein the fourth guide rail 320b and the third guide rail 310b are fixedly arranged in the first housing 100.

[0052] Optionally, the second housing 200 is connected with the first slider 330a and the second slider 330b respectively, and can change the cooperation state with the first housing 100 under the driving of the first slider 330a and the second slider 330b, i.e., change the unfolding state of the flexible display screen 20.

[0053] Optionally, the driving device 10 in the embodiment can also include a power supply assembly 400 electrically connected with the first guide rail 310a, the second guide rail 320a, the third guide rail 310b and the fourth guide rail 320b, for providing electric energy and controlling current parameters of the current input to the first guide rail 310a, the second guide rail 320a, the third guide rail 310b and the fourth guide rail 320b, including the size, direction and access position of the current, etc.

[0054] The foregoing embodiment is described by taking the slide-roll screen mobile phone as an example, and the driving device in the embodiment can also be used for sliding of the functional device relative to the shell of the electronic device. Please refer to Figure 12 and Figure 13 , Figure 12 is a structural schematic diagram of another embodiment of the electronic device of the present application, Figure 13 is Figure 12 a partial structural perspective schematic diagram of the electronic device in the embodiment, which includes the driving device 10, the display screen 40 and the functional device 30. The functional device 30 can include one or more of a camera, a flash, and a loudspeaker, and the embodiment is described by taking the camera as an example.

[0055] The driving device 10 includes a first shell 100, a second shell 200 and a driving assembly 300. The first shell 100 can be a shell or a middle frame of the electronic device, and the second shell 200 can be a lifting support of the functional device 30. The functional device 30 is connected with the second shell 200 and can change the position state in the process of moving the second shell 200 relative to the first shell 100. The display screen 40 is fixedly connected with the first shell 100. The detailed structure of the driving assembly 300 is described in the foregoing embodiment, and will not be described here.

[0056] The use scenarios of the driving device are described by taking two structures of the electronic device as examples in the embodiment, and the driving device in the embodiment can also be used in other driving structures and driving modes of the electronic device, which will not be enumerated and described in detail here.

[0057] The driving device provided in the embodiment of the present application replaces the motor-screw driving structure of the conventional scheme, and by arranging two electrically conductive guide rails and a slider capable of electrically connecting the two guide rails across the two guide rails, the driving device can realize driving of the corresponding components of the electronic device by using the Lorentz electromagnetic force principle of the left-hand rule. The driving device has the characteristics of simple structure, high reliability and long service life.

[0058] Please refer to Figure 14 , Figure 14is a structural block diagram of an electronic device in the embodiments of the present application. The structure of the electronic device in the embodiments can include RF circuit 910, memory 920, input unit 930, display unit 940, sensor 950, audio circuit 960, wifi module 970, processor 980, and power supply 990, etc. The RF circuit 910, memory 920, input unit 930, display unit 940, sensor 950, audio circuit 960, and wifi module 970 are connected to the processor 980 respectively; the power supply 990 is used to provide power for the whole host 10.

[0059] Specifically, the RF circuit 910 is used to send and receive signals; the memory 920 is used to store data instructions information; the input unit 930 is used to input information, which can specifically include a touch panel 931 and other input devices 932 such as operation keys; the display unit 940 can include a display panel 941, etc.; the sensor 950 includes an infrared sensor, a laser sensor, etc., which is used to detect user proximity signals, distance signals, etc.; the speaker 961 and the microphone 962 are connected to the processor 980 through the audio circuit 960, which are used to send and receive sound signals; the wifi module 970 is used to receive and transmit wifi signals; the processor 980 is used to process data information of the host. The specific structure and stacking features of the host are within the understanding of those skilled in the art, and will not be described in detail here.

[0060] The above is only part of the embodiments of the present application, and does not limit the protection scope of the present application. Any equivalent device or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A drive device characterized by comprising: The electronic device comprises: a first shell; a driving assembly comprising: a first rail made of conductive material and fixed to the first shell; a second rail made of conductive material and fixed to the first shell; a slider comprising a first slider and a second slider respectively connected between the first rail and the second rail and used for electrically connecting the first rail and the second rail; a second shell fixedly connected with the first slider and the second slider; wherein the driving device further comprises a power supply assembly electrically connected with the first rail and the second rail, the power supply assembly is electrically connected with the first rail and the second rail of the driving assembly respectively, and is used for controlling current parameters of current flowing into the first rail and the second rail; when the second shell needs to move in a first direction, the power supply assembly energizes a first section of the first rail and the second rail, so that current forms a first current loop through the first slider, thereby driving the first slider to move in the first direction, and a second section where the second slider is located does not form a current loop; when the second shell needs to move in a second direction opposite to the first direction, the power supply assembly energizes the second section of the first rail and the second rail, so that current forms a second current loop through the second slider, thereby driving the second slider to move in the second direction, and the first section where the first slider is located does not form a current loop.

2. The drive apparatus according to claim 1, characterized by The first rail and the second rail extend in a direction parallel to the first direction, and the slider extends in a direction perpendicular to the first direction.

3. The drive apparatus according to claim 2, characterized by The driving device further comprises a second driving assembly, the second driving assembly comprising: a third rail made of conductive material; a fourth rail made of conductive material; a second slider connected between the third rail and the fourth rail and used for electrically connecting the third rail and the fourth rail; wherein the third rail and the fourth rail can be connected with positive and negative poles of a power supply respectively and form a current loop through the second slider, and the second slider can move in a second direction under the action of a magnetic field force generated by the third rail and the fourth rail; wherein the second direction is opposite to the first direction; wherein the third rail and the fourth rail are fixed to the first shell respectively, and the second shell is further fixedly connected with the second slider; or the third rail and the fourth rail are fixed to the second shell respectively, and the first shell is fixedly connected with the second slider.

4. The drive apparatus according to claim 3, characterized by The power supply assembly is further electrically connected with the third rail and the fourth rail respectively, and is used for controlling current parameters of current flowing into the third rail and the fourth rail.

5. An electronic device, comprising: The electronic device comprises the driving device of any one of claims 1-4.

6. The electronic device of claim 5, wherein, The electronic device further comprises a flexible display screen connected with the first shell and the second shell respectively and capable of changing an unfolding state during relative movement of the first shell and the second shell.

7. The electronic device of claim 5, wherein, The electronic device further comprises a functional device; the functional device is connected with the second shell of the driving device and can change a position state during movement of the second shell relative to the first shell.

8. The electronic device of claim 7, wherein, The functional device comprises one or more of a camera, a flash, and a speaker.

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