CN115173661A - Driving device and electronic apparatus - Google Patents

Abstract

The application provides a driving device and an electronic device; the driving device includes: the 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 sliding block; the first guide rail and the second guide rail are both made of conductive materials and are fixedly arranged on the first shell; the sliding block is connected between the first guide rail and the second guide rail in a spanning mode and is used for electrically conducting and connecting the first guide rail and the second guide rail; the first guide rail and the second guide rail can be respectively connected with the anode and the cathode of a power supply and form a current loop through the sliding block, and the sliding block can move along a first direction under the action of magnetic field force generated by the first guide rail and the second guide rail; the second shell is fixedly connected with the sliding block. 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 electrified guide rails and arranging a sliding block which can realize the electric connection of the two guide rails between the two guide rails in a spanning way; the device has the characteristics of simple structure, high reliability and long service life.

Description

Driving device and electronic apparatus

Technical Field

The present invention relates to the field of electronic devices, and more particularly, to a driving device and an electronic device having the same.

Background

In the driving mechanism of electronic equipment, for example, the driving mechanism of a roll-type mobile phone, a telescopic camera mobile phone, etc., mostly adopts the driving structure of a motor lead screw, however, the driving structure of the motor lead screw has a complicated structure, and if the lubrication is not good or the use time is home-made, fine dust is generated due to friction, and then the situation of short circuit of electronic devices inside the electronic equipment occurs. Meanwhile, the friction of structural members such as a screw rod and the like can reduce the movement precision and the movement service life. Therefore, the development of a driving machine for electronic equipment with simple and reliable structure and long service life constitutes an urgent technical problem to be solved.

Disclosure of Invention

A first aspect of an embodiment of the present application provides a driving apparatus, including:

a first housing;

a drive assembly, comprising:

the first guide rail is made of a conductive material and is fixedly arranged on the first shell;

the second guide rail is made of a conductive material and is fixedly arranged on the first shell;

the sliding block is connected between the first guide rail and the second guide rail in a spanning mode and is used for electrically conducting and connecting the first guide rail and the second guide rail; the first guide rail and the second guide rail can be respectively connected with a positive electrode and a negative electrode of a power supply and form a current loop through the sliding block, and the sliding block can move along a first direction under the action of magnetic field force generated by the first guide rail and the second guide rail;

and the second shell is fixedly connected with the sliding block.

In addition, an embodiment of the present application further provides an electronic device, which includes the driving apparatus described in any of the above embodiments.

According to the driving device provided by the embodiment of the application, the two electrified guide rails are arranged, the sliding block capable of realizing the electric connection of the two guide rails is arranged between the two guide rails in a crossing manner, and the first shell and the second shell of the electronic equipment can be driven to slide relatively by utilizing the Lorentz electromagnetic force principle of the left-hand rule; the device has the characteristics of simple structure, high reliability and long service life.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of a first state of an electronic device according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a first state of the electronic device in the embodiment of FIG. 1;

FIG. 3 is a schematic diagram of the electronic device in FIG. 2 with a partially disassembled structure;

FIG. 4 is a schematic structural diagram of the first housing in the embodiment of FIG. 3;

FIG. 5 is a schematic diagram of the second shell in the embodiment of FIG. 3, which is disassembled;

FIG. 6 isbase:Sub>A schematic diagram ofbase:Sub>A cross-sectional view of the electronic device of FIG. 2 along line A-A;

FIG. 7 is a schematic cross-sectional view of the second housing of FIG. 6;

FIG. 8 is a schematic perspective view of a portion of the structure of FIG. 2;

FIG. 9a is a schematic view of the magnetic fields generated by two parallel guide rails;

FIG. 9b is a schematic view of the magnetic field formed by the middle of two parallel guide rails;

FIG. 9c is a schematic view of the direction of force applied to the slider;

FIG. 10 is a schematic perspective view of a portion of another embodiment of an electronic device of the present application;

FIG. 11 is a schematic perspective view of a portion of an electronic device in accordance with an embodiment of the present application;

FIG. 12 is a schematic structural diagram of an electronic device according to yet another embodiment of the present application;

FIG. 13 is a schematic diagram illustrating a partial perspective structure of the electronic device of FIG. 12;

fig. 14 is a block diagram schematically illustrating a structural composition of an electronic device in an embodiment of the present application.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive work are within the scope of the present application.

The terms "first", "second" and "third" in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the embodiment of the present application, all the directional indicators (such as upper, lower, left, right, front, and rear … …) are used only to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other steps or elements inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline 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 arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.

An embodiment of the present application provides an electronic device, please refer to fig. 1 and fig. 2 together, in which fig. 1 is a schematic structural diagram of a first state of the electronic device in an embodiment of the present application, and fig. 2 is a schematic structural diagram of the first state of the electronic device in the embodiment of fig. 1; it should be noted that the electronic device in the present application may include a mobile phone, a tablet computer, a notebook computer, a wearable device, and the like. In this embodiment, a mobile phone with a sliding and rolling screen structure is taken as an example for description. The state in fig. 1 is an unfolded state of the mobile phone, and the state in fig. 2 is a closed state.

Specifically, referring to fig. 3, fig. 3 is a schematic diagram of a partial structure of the electronic device in the embodiment of fig. 2, where the electronic device includes a driving device 10 and a flexible display 20. The driving device 10 includes a first casing 100, a second casing 200, and a driving assembly 300.

Optionally, referring to fig. 4, fig. 4 is a schematic structural diagram of the first housing in the embodiment of fig. 3, where the first housing 100 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 towards the direction away from the plane of the bottom wall 110, 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 enclose an accommodating space 1000 with one open end, wherein the top wall 130 is used for supporting the flexible display screen 20.

In some embodiments, at least a part of the structure of the second housing 200 is disposed in the accommodating space 1000, and at least a part of the structure of the second housing 200 can slide out of the opening and into the accommodating space 1000; referring to fig. 1, fig. 1 is a schematic structural diagram of the second housing 200 driving the flexible display 20 in a stretching state.

In this embodiment, the bottom wall 110 may have a rectangular structure, 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 disposed opposite to each other and are respectively connected to the edges of the bottom wall 110, the third side wall 123 is respectively connected to the first side wall 121, the second side wall 122, the bottom wall 110, and the top wall 130, and an opposite end of the third side wall 123 is an opening through which the second housing 200 slides out of and into the accommodating space 1000.

Referring to fig. 5, fig. 5 is a schematic diagram illustrating a second housing of the embodiment of fig. 3, in which the second housing 200 includes a first supporting plate 210, a second supporting plate 220, a top plate 230 and a roller 240; opposite sides of the top plate 230 are respectively connected to the first support plate 210 and the second support plate 220, opposite ends of the roller 240 are respectively connected to the first support plate 210 and the second support plate 220, and a rotation axis line (Y direction in the drawing) of the roller 240 is perpendicular to a relative sliding direction (X direction in fig. 1) of the second housing 200 and the first housing 100. Wherein the size of the outer sidewalls of the first and second support plates 210 and 220 is slightly smaller than the size of the inner sidewalls of the first and second sidewalls 121 and 122 of the first casing 100.

Referring to fig. 6 and 7 together, fig. 6 isbase:Sub>A schematic partial sectional structure view of the electronic device in fig. 2 along the linebase:Sub>A-base:Sub>A, fig. 7 isbase:Sub>A schematic sectional structure view of the second housing in fig. 6, in some embodiments, the second housing 200 further includes an operation board 250, the operation board 250 is respectively connected to the first support board 210 and one end of the second support board 220 away from the third side wall 123 and is disposed adjacent to the roller 240,base:Sub>A gap 201 is disposed between the operation board 250 and the roller 240, and the flexible display screen 20 is disposed through the gap 201. Referring to fig. 2, when the first casing 100 and the second casing 200 are in the closed state or the minimum state, the operation plate 250 covers the opening of the first casing 100.

Alternatively, the roller 240 is disposed near one ends of the first and second support plates 210 and 220 away from the third sidewall 123; the scroll wheel 240 is used for rolling contact with the flexible display screen 20. Referring to fig. 5 and fig. 7, the second housing 200 further includes a back plate 260, the back plate 260 is connected to the first supporting plate 210 and the second supporting plate 220 respectively, the back plate 260 is parallel to the top plate 230, the first supporting plate 210, the second supporting plate 220, the back plate 260, the top plate 230 and the operation plate 250 are defined together to form a containing cavity 2000, the non-display area of the flexible display 20 is contained in the containing cavity 2000, and the back plate 260 is used for supporting and shielding a portion of the flexible display 20 located in the containing cavity 2000.

Referring to fig. 6, one end of the flexible display screen 20 is connected to the first casing 100, and may be connected to the third sidewall 123 of the first casing 100. The other end of the flexible display screen 20 is movably disposed in the accommodating space 1000 of the first casing 100, and specifically may be disposed in the accommodating cavity 2000 of the second casing 200; the flexible display screen 20 can be unfolded or folded along with the relative sliding between the second casing 200 and the first casing 100, so as to change the area covered on the first casing 100 and the second casing 200, wherein the part of the flexible display screen 20 covered on the first casing 100 and the second casing 200 is the display area of the flexible display screen 20; i.e. the area of the flexible display 20 exposed at the top (outer) portion in fig. 2. It should be noted that the display area and the non-display area of the flexible display 20 in the embodiment of the present application are only used to describe which part of the flexible display 20 is used for displaying images in different states (adjusted according to the relative position relationship between the first casing 100 and the second casing 200), and the whole structure of the flexible display 20 may have a display function, and only controls a part of the area to be in a screen state (i.e., the aforementioned non-display area) and another part of the area to be in a display state (display area) in different states.

Referring to fig. 2, 3 and 8, fig. 8 is a partial perspective view of fig. 2, and the driving assembly 300 includes a first guide rail 310, a second guide rail 320 and a sliding block 330. The first guide rail 310 and the second guide rail 320 are made of a conductive material, and may be a metal, an alloy material, carbon, or the like. The second guide rail 320 is disposed adjacent to the first guide rail 310 in parallel. The slider 330 is connected between the first rail 310 and the second rail 320 in a straddling manner, and is used for electrically connecting the first rail 310 and the second rail 320. The material of the slider 330 may be made of a conductive material in the whole structure, or may be made of a conductive material in at least a part of the structure, so that the first guide rail 310 and the second guide rail 320 can be electrically connected, which is not limited herein. The slider 330 extends in a direction perpendicular to the first direction (X direction in the drawing), i.e., Y direction in the drawing.

The first guide rail 310 and the second guide rail 320 may be respectively connected to positive and negative electrodes of a power supply and form a current loop through the slider 330, and the slider 330 may move along a direction (X direction in the drawing, that is, a first direction) in which the first guide rail 310 and the second guide rail 320 extend under the action of a magnetic field force generated by the first guide rail 310 and the second guide rail 320.

Referring to fig. 9a to 9c together, fig. 9a is a schematic view of a magnetic field formed by two parallel guide rails, fig. 9b is a schematic view of a magnetic field formed by the middle portions of the two parallel guide rails, fig. 9c is a schematic view of a force-receiving direction of the slider, wherein after the two parallel guide rails (the first guide rail 310 and the second guide rail 320) are energized, an electromagnetic field in the direction shown in fig. 9a can be formed around the two parallel guide rails according to the right-hand rule, then, the magnetic field formed by the middle portions of the two parallel guide rails is as shown in fig. 9b (vertically upward), the direction of the force received by the slider 330 in the magnetic field formed by the two guide rails is toward the right side in fig. 9c according to the left-hand rule, and the first guide rail 310 and the second guide rail 320 are continuously energized, so that the slider 330 moves toward the force-receiving direction.

The first guide rail 310 and the second guide rail 320 are respectively fixed to the first housing 100, and the second housing 200 is fixedly connected to the sliding block 330, so that the first housing 100 and the second housing 200 can be driven by the driving assembly 300 to change the matching state (switch between the states shown in fig. 1 and fig. 2).

Optionally, with continued reference to fig. 8, the driving device 10 may further include a power supply assembly 400, where the power supply assembly 400 is electrically connected to the first rail 310 and the second rail 320, respectively, for providing power and controlling current parameters of the current flowing to the first rail 310 and the second rail 320, including the magnitude and the direction of the current. The slider 330 can be reciprocated in the first direction (X direction) by applying currents in different directions to the first guide rail 310 and the second guide rail 320.

Referring to fig. 10, fig. 10 is a perspective view of a partial structure of another embodiment of the electronic device of the present application, different from the previous embodiment, the sliding block 330 in the present embodiment includes a first sliding block 331 and a second sliding block 332; the first slider 331 and the second slider 332 are respectively connected between the first rail 310 and the second rail 320 in a straddling manner, and are respectively used for electrically connecting the first rail 310 and the second rail 320.

The first guide rail 310 and the second guide rail 320 are respectively fixed to the first casing 100, the first slider 331 and the second slider 332 are fixed to the second casing 200, when the flexible display screen 20 needs to be unfolded, the guide rails are powered on from the left side in the figure, and the first slider 331 and the guide rails form a loop and are further stressed to be unfolded outwards. While the second slider 332 is not applied with current during the unfolding process, and thus can be unfolded along with the movement of the second housing 200. When the flexible display screen 20 needs to be retracted, the left side of the guide rail is powered off, the right side of the guide rail is powered on, and the second sliding block 332 and the guide rail form a loop and are forced to move leftwards. In this process, the first slider 331 does not flow a current, and thus can be retracted along with the movement of the second housing 200. In this way, the adjustment of the opening and closing size of the flexible display screen 20 is realized by the movement of driving the first slider 331 and the second slider 332.

Optionally, the driving device 10 in this embodiment may also include a power supply assembly 400, where the power supply assembly 400 is electrically connected to the first rail 310 and the second rail 320, respectively, for supplying electric energy and controlling current parameters of the current flowing to the first rail 310 and the second rail 320, including the magnitude, direction, and the connection position of the current.

Referring to fig. 11, fig. 11 is a perspective view of a partial structure of another embodiment of the electronic device of the present application, different from the previous embodiment, the driving apparatus 10 of the present embodiment includes two sets of driving components, namely, a first driving component 300a and a second driving component 300b. Wherein the first driving assembly 300a includes: a first guide rail 310a, a second guide rail 320a, and a first slider 330a. The first rail 310a and the second rail 320a may also be made of a conductive material; the second rail 320a is disposed adjacent to and in parallel with the first rail 310 a; the first slider 330a is connected between the first rail 310a and the second rail 320a in a straddling manner, and is used for electrically connecting the first rail 310a and the second rail 320 a; the first guide rail 310a and the second guide rail 320a may be respectively connected to an anode and a cathode of a power supply (power supply module 400) and form a current loop through the first slider 330a, and the first slider 330a may move along a first direction (X1 direction in the drawing) under the action of magnetic field force generated by the first guide rail 310a and the second guide rail 320 a; the first guide rail 310a and the second guide rail 320a are respectively fixed to the first housing 100.

Alternatively, the second driving assembly 300b includes: a third guide rail 310b, a fourth guide rail 320b, and a second slider 330b; likewise, the third and fourth guide rails 310b and 320b may be made of a conductive material; the fourth guide rail 320b is disposed adjacent to the third guide rail 310b in parallel; the second slider 330b is connected between the third rail 310b and the fourth rail 320b in a straddling manner, and is used for electrically connecting the third rail 310b and the fourth rail 320 b; the third guide rail 310b and the fourth guide rail 320b may be respectively connected to an anode and a cathode of a power supply (in this embodiment, the power supply module 400) and form a current loop through the second slider 330b, and the second slider 330b may move along the second direction (X2 direction in the drawing) under the action of magnetic field force generated by the third guide rail 310b and the fourth guide rail 320 b; the second direction is opposite to the first direction, so that the electronic equipment is unfolded and retracted; the fourth guide rail 320b and the third guide rail 310b are respectively fixed to the first housing 100.

Optionally, the second housing 200 is connected to the first sliding block 330a and the second sliding block 330b, respectively, and can be driven by the first sliding block 330a and the second sliding block 330b to change the matching state with the first housing 100, that is, change the unfolding state of the flexible display screen 20.

Optionally, the driving device 10 in this embodiment may also include a power supply assembly 400, where the power supply assembly 400 is electrically connected to the first rail 310a, the second rail 320a, the third rail 310b and the fourth rail 320b, respectively, and is used for supplying electric energy and controlling current parameters of the current flowing into the first rail 310a, the second rail 320a, the third rail 310b and the fourth rail 320b, including the magnitude, the direction and the access position of the current.

The foregoing embodiment is continued by taking a sliding rolling screen mobile phone as an example, and the driving device in this embodiment may also be used for sliding the electronic device function device relative to the housing. Referring to fig. 12 and 13 together, fig. 12 is a schematic structural diagram of another embodiment of the electronic device of the present application, and fig. 13 is a schematic partial perspective structural diagram of the electronic device in fig. 12, where the electronic device includes a driving apparatus 10, a display 40, and a functional device 30. The functional device 30 may include one or more of a camera, a flash, and a speaker, and the camera is only used as an example in the illustration of the present embodiment.

The driving device 10 includes a first housing 100, a second housing 200, and a driving assembly 300. The first casing 100 may be a housing or a middle frame of the electronic device, the second casing 200 may be a lifting bracket of the functional device 30, and the functional device 30 is connected to the second casing 200 and may change a position state during a process of moving the second casing 200 relative to the first casing 100. The display 40 may be fixedly connected to the first housing 100. For details of the driving assembly 300, please refer to the related description of the foregoing embodiments, and further description is omitted here.

In this embodiment, only the structures of two electronic devices are taken as an example to describe a usage scenario of the driving apparatus, and the driving apparatus in this embodiment may also be used in a driving structure and a driving manner of other electronic devices, which are not listed and described in detail herein.

The driving device provided by the embodiment of the application replaces a motor screw rod driving structure in the traditional scheme, the two electrified guide rails are arranged, the sliding block capable of realizing the electric connection of the two guide rails is arranged between the two guide rails in a crossing mode, and the driving device can drive corresponding parts of electronic equipment by utilizing the Lorentz electromagnetic force principle of the left-hand rule; the device has the characteristics of simple structure, high reliability and long service life.

Referring to fig. 14, fig. 14 is a block diagram illustrating a structure of an electronic device in an embodiment of the present application, wherein the structure of the electronic device in the embodiment may include an RF circuit 910, a memory 920, an input unit 930, a display unit 940, a sensor 950, an audio circuit 960, a wifi module 970, a processor 980, a power supply 990, and the like. Wherein the RF circuit 910, the memory 920, the input unit 930, the display unit 940, the sensor 950, the audio circuit 960, and the wifi module 970 are respectively connected with the processor 980; power supply 990 is used to provide power to the entire host 10.

Specifically, the RF circuit 910 is used for transmitting and receiving signals; the memory 920 is used for storing data instruction information; the input unit 930 is used for inputting information, and may specifically include a touch panel 931 and other input devices 932 such as operation keys; the display unit 940 may include a display panel 941; the sensor 950 includes an infrared sensor, a laser sensor, etc. for detecting a user approach signal, a distance signal, etc.; a speaker 961 and a microphone 962 are connected to the processor 980 through an audio circuit 960 for emitting and receiving sound signals; the wifi module 970 is used for receiving and transmitting wifi signals, and the processor 980 is used for processing data information of the host. The features of the stack of the specific structure of the host are not described in detail here, within the understanding of the person skilled in the art.

The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (10)

1. A drive device, comprising:

a first housing;

a drive assembly, comprising:

the first guide rail is made of a conductive material and is fixedly arranged on the first shell;

the second guide rail is made of a conductive material and is fixedly arranged on the first shell;

the sliding block is connected between the first guide rail and the second guide rail in a spanning mode and is used for electrically conducting and connecting the first guide rail and the second guide rail; the first guide rail and the second guide rail can be respectively connected with a positive electrode and a negative electrode of a power supply and form a current loop through the sliding block, and the sliding block can move along a first direction under the action of magnetic field force generated by the first guide rail and the second guide rail;

and the second shell is fixedly connected with the sliding block.

2. The drive of claim 1, wherein the slide comprises a first slide and a second slide; the first sliding block and the second sliding block are respectively connected between the first guide rail and the second guide rail in a spanning mode and are respectively used for electrically conducting and connecting the first guide rail and the second guide rail.

3. The drive device according to claim 1, wherein the first rail and the second rail each extend in a direction parallel to the first direction, and the slider extends in a direction perpendicular to the first direction.

4. The drive device of claim 1, further comprising a power supply assembly electrically coupled to the first and second rails of the drive assembly, respectively, for controlling a current parameter of the current supplied to the first and second rails.

5. The drive of claim 4, further comprising a second drive assembly, the second drive assembly comprising:

a third rail made of a conductive material;

a fourth rail made of a conductive material;

the second sliding block is connected between the third guide rail and the fourth guide rail in a spanning mode and is used for electrically conducting and connecting the third guide rail and the fourth guide rail; the third guide rail and the fourth guide rail can be respectively connected with the positive electrode and the negative electrode of a power supply and form a current loop through the second slider, and the second slider can move along a second direction under the action of magnetic field force generated by the third guide rail and the fourth guide rail; wherein the second direction is opposite to the first direction;

the third guide rail and the fourth guide rail are fixedly arranged on the first shell respectively, and the second shell is fixedly connected with the second sliding block; or the third guide rail and the fourth guide rail are respectively and fixedly arranged on the second shell, and the first shell is fixedly connected with the second sliding block.

6. The drive of claim 5, wherein the power module is further electrically connected to the third rail and the fourth rail, respectively, for controlling a current parameter of the current flowing to the third rail and the fourth rail.

7. An electronic device, characterized in that the electronic device comprises a drive apparatus according to any one of claims 1-6.

8. The electronic device of claim 7, further comprising a flexible display screen, wherein the flexible display screen is connected to the first housing and the second housing, respectively, and can change an unfolded state during the relative movement of the first housing and the second housing.

9. The electronic device of claim 7, further comprising a functional device; the functional device is connected to the second housing of the drive device and can change its position during the movement of the second housing relative to the first housing.

10. The electronic device of claim 9, wherein the functional device comprises one or more of a camera, a flash, and a speaker.

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