CN113259511A

CN113259511A - Electronic device

Info

Publication number: CN113259511A
Application number: CN202110526673.0A
Authority: CN
Inventors: 郭晓康; 张一帆
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2021-08-13
Anticipated expiration: 2041-05-14
Also published as: CN113259511B

Abstract

The application discloses electronic equipment belongs to the technical field of communication. This electronic equipment includes first casing, second casing, backup pad, drive assembly and screen, and first casing and second casing form and hold the chamber, and second casing and first casing sliding fit, screen set up on first casing and second casing, and backup pad and drive assembly set up in holding the intracavity. The transmission assembly comprises a cam and a transmission piece. The transmission piece is fixedly connected with the first shell, the transmission piece is connected with the cam, the cam is connected with the supporting plate, the transmission piece drives the cam to rotate in the process that the second shell and the first shell move, and the cam drives the supporting plate to move between a first position and a second position; under the condition that the supporting plate is located at the first position, the supporting plate is abutted against the screen to support the screen; with the support plate in the second position, the second support portion is retracted into the accommodating chamber. The scheme can solve the problem that the screen cannot be effectively supported under the condition that the display area is increased.

Description

Electronic device

Technical Field

The application belongs to the technical field of communication, and particularly relates to an electronic device.

Background

With the rapid development of electronic devices, the electronic devices are more and more widely used, and the electronic devices such as mobile phones and tablet computers play more and more roles in the work, life, entertainment and the like of people.

At present, the screen of the electronic device can be enlarged to enable the electronic device to have a better visual effect, so that the use requirement of a user is met. Along with the development of flexible screen, although electronic equipment can realize the increase of display area through the mode of convoluteing, the screen support that is applicable to at present that the coiling mode expands plane display area can not carry out effective plane support to the whole display area after expanding, and then leads to the sunken easy emergence after the regional atress of part, influences user and uses experience.

Disclosure of Invention

The purpose of the embodiment of the application is to provide a support frame and an electronic device, which can solve the problem that a screen of the electronic device in the prior art cannot be effectively supported under the condition that the area of a display area is increased.

In order to solve the technical problem, the present application is implemented as follows:

the electronic equipment disclosed by one embodiment of the invention comprises a first shell, a second shell, a supporting plate, a transmission component and a screen,

the first shell and the second shell form an accommodating cavity, the second shell is in sliding fit with the first shell, the screen is arranged on the first shell and the second shell, and the supporting plate and the transmission assembly are arranged in the accommodating cavity;

the transmission component comprises a cam and a transmission piece, the cam is rotatably arranged on the second shell, the transmission piece is fixedly connected with the first shell, the transmission piece is connected with the cam, the cam is connected with the supporting plate, the transmission piece drives the cam to rotate in the process that the second shell and the first shell move, and the cam drives the supporting plate to move between a first position and a second position;

under the condition that the supporting plate is located at the first position, the supporting plate is abutted against the screen to support the screen; with the support plate in the second position, the second support portion is retracted into the accommodating chamber.

Based on the support frame, the invention also discloses electronic equipment which comprises the support frame.

The technical scheme adopted by the invention can achieve the following beneficial effects:

in the support frame disclosed by the embodiment of the invention, the first shell and the second shell are in sliding fit, and the increase or reduction of the display area of the screen is realized by the relative sliding of the first shell and the second shell. The support plate is disposed at the second housing such that the second support portion of the support plate can extend out of or retract into the accommodating chamber. The supporting plate is further connected with the first shell through the transmission assembly, so that the second supporting part can be driven to move towards one side close to the screen or one side far away from the screen in the relative movement process of the first shell and the second shell. And, in case that the second supporting part is protruded out of the accommodating chamber, the second supporting part may be flush with the first supporting part, so that an area of a supporting surface supporting the screen may be increased as an area of the screen display surface is increased. Therefore, the scheme can enable the display area of the screen to be supported under the condition that the area of the display surface of the screen is increased, and the screen is prevented from collapsing after being stressed. And the transmission assembly is connected with the first shell and the supporting plate, and the supporting plate is driven to move by utilizing the relative movement of the first shell and the second shell, so that the widening of the display area of the screen can be synchronously carried out with the preparation movement of supporting the screen by the supporting plate, and the situation that the movement of the supporting plate prolongs the preparation time required by the widening of the display area of the screen is avoided.

Drawings

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

FIG. 2 is a schematic diagram of an electronic device in a second state according to an embodiment of the disclosure;

FIG. 3 is a schematic view of an electronic device assembled with a screen in a first state according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a partial schematic view of an electronic device in a first state according to an embodiment of the disclosure;

FIG. 6 is a schematic view of an electronic device assembled with a screen in a second state according to an embodiment of the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 6;

FIG. 8 is an assembled view of the transmission assembly in a second state of the disclosed electronic device in accordance with one embodiment of the invention;

FIG. 9 is a schematic illustration of the transmission of a drive member according to an embodiment of the present invention;

FIG. 10 is a schematic view of the second housing assembled with the support plate according to one embodiment of the present invention;

FIG. 11 is a schematic view of the assembly of the push rod and cam in a first view as disclosed in one embodiment of the present invention;

FIG. 12 is a schematic view of the assembly of the push rod and cam in a second view as disclosed in one embodiment of the present invention;

FIG. 13 is a schematic diagram of an electronic device in a first state according to one embodiment of the disclosure;

FIG. 14 is a schematic diagram of an electronic device in a second state according to one embodiment of the disclosure;

fig. 15 is an assembly view of the second housing and the supporting plate according to an embodiment of the present invention.

In the figure:

100-a first housing;

110-a containment chamber; 120-a first support;

200-a second housing;

300-a support plate;

310-a second support; 320-a limiting part;

400-a transmission assembly;

410-a cam; 411-a guide slot; 420-a push rod; 421-a sliding part; 422-a first leg; 423-a second leg; 430-a transmission; 440-a scaffold; 441-a limiting groove;

500-a driver;

510-a motor; 511-a second gear; 520-a lead screw; 521-a first gear; 530-a first thread insert;

540-a second thread insert;

600-screen;

700-third housing.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The support frame and the electronic device provided by the embodiment of the present application are described in detail with reference to fig. 1 to 12 through specific embodiments and application scenarios thereof.

Referring to fig. 1 to 8, an electronic apparatus disclosed in an embodiment of the present invention includes a first housing 100, a second housing 200, a support plate 300, a transmission assembly 400, and a screen 600.

The first casing 100 and the second casing 200 may form the receiving cavity 110, the second casing 200 is slidably fitted to the first casing 100, and the screen 600 is disposed on the first casing 100 and the second casing 200, so that the display area of the screen 600 may be increased when the first casing 100 and the second casing 200 are far away from each other, and the display area of the screen 600 may be decreased when the first casing 100 and the second casing 200 are close to each other. Optionally, the first casing 100 has an installation space, and a side of the first casing 100 close to the second casing 200 may be provided with an opening, so that the second casing 200 may be at least partially retracted from the opening into the installation space. During the relative sliding of the first casing 100 and the second casing 200, at least a portion of the second casing 200 can extend out of the opening or retract into the installation space of the first casing 100.

The support plate 300 and the driving assembly 400 may be disposed in the receiving chamber 110. The first housing 100 and/or the second housing 200 may provide a mounting base for the support plate 300 and the transmission assembly 400. Alternatively, the support plate 300 may be disposed on the second housing 200, and the support plate 300 may slide with the second housing 200 relative to the first housing 100 during the relative sliding of the first housing 100 and the second housing 200.

The transmission assembly 400 may include a cam 410 and a transmission member 430, the cam 410 being rotatably provided to the second housing 200. The transmission member 430 is fixedly connected to the first housing 100, the transmission member 430 is connected to the cam 410, the cam 410 is connected to the support plate 300, and when the second housing 200 moves relative to the first housing 100, the transmission member 430 drives the cam 410 to rotate, and the cam 410 drives the support plate 300 to move between the first position and the second position. With the support plate 300 located at the first position, the support plate 300 abuts against the screen 600 to support the screen 600. With the support plate 300 in the second position, the support plate 300 is retracted into the accommodating chamber 110.

In the above embodiment, the transmission assembly 400 can drive the supporting plate 300 to move between the first position and the second position during the relative movement of the first casing 100 and the second casing 200, so that the movement for widening the display area of the screen 600 and the movement of the supporting plate 300 relative to the second casing 200 can be completed synchronously, thereby preventing the switching movement of the supporting plate 300 between the first position and the second position from prolonging the preparation time required by the electronic device for widening the display area of the screen 600, reducing the user waiting time, and improving the user experience.

Specifically, in the case where it is necessary to widen the area of the display area of the screen 600, the first casing 100 and the second casing 200 may be driven away from each other so that the display area of the screen 600 is increased. In the process that the first casing 100 and the second casing 200 are away from each other, the first casing 100 and the second casing 200 drive the supporting plate 300 to switch from the second position to the first position through the transmission assembly 400, that is, the supporting plate 300 moves to the side close to the screen 600, so that the supporting plate 300 can be supported below the screen 600 after the screen 600 is widened, and further the screen 600 is prevented from collapsing after being stressed. In the case where it is necessary to reduce the area of the display region of the screen 600, the first casing 100 and the second casing 200 may be driven to approach each other so that the display area of the screen 600 is reduced. In the process that the first casing 100 and the second casing 200 approach each other, the first casing 100 and the second casing 200 drive the supporting plate 300 to switch from the first position to the second position through the transmission assembly 400, that is, the supporting plate 300 moves in a direction away from the screen 600, so that the supporting plate 300 can be retracted into the accommodating cavity 110.

It should be noted that the electronic device in the above embodiment may drive the first casing 100 and the second casing 200 to move relatively through the driving mechanism, and may also manually operate the first casing 100 and the second casing 200 to move relatively. The embodiment of the present application does not limit a specific manner of driving the relative movement of the first housing 100 and the second housing 200.

Optionally, at least one of the first casing 100 and the second casing 200 is in sliding fit with the screen 600, so that the screen 600 can slide along the surface of the first casing 100 or the second casing 200, thereby increasing or decreasing the area of the display surface of the screen 600. Optionally, during the process that the first casing 100 and the second casing 200 are far away from each other, at least a portion of the screen 600 may slide from the first side of the electronic device to the second side of the electronic device, so that the area of the screen 600 on the second side of the electronic device is increased. The first side and the second side may be opposing sides of the electronic device. During the process of the first casing 100 and the second casing 200 approaching each other, at least a portion of the screen 600 may slide from the second side of the electronic device to the first side of the electronic device, so that the area of the screen 600 on the second side of the electronic device is reduced.

There are many ways in which the screen 600 can be widened, and for example, the increase or decrease in the display area of the screen 600 can also be achieved by rolling up on a scroll. The present application does not limit the specific manner in which the display area of the screen 600 is increased or decreased.

In an alternative embodiment, the number of the support plates 300 is two. The two support plates 300 may be located at the first side and the second side of the second case 200, respectively. The first and second sides of the second case 200 are opposite to each other. Both support plates 300 are connected to the first housing 100 or the second housing 200 through the transmission assembly 400. In this embodiment, both sides of the second housing 200 may be supported by using two support plates 300 in a state where the first housing 100 and the second housing 200 are distant from each other. In the case where the screens 600 are provided on both sides of the electronic apparatus, the screens 600 located on both sides of the electronic apparatus can be effectively supported. Under the condition that only unilateral at electronic equipment sets up screen 600, can guarantee the roughness of the one side that second casing 200 deviates from screen 600 through backup pad 300, prevent to hold the finger of electronic equipment and cave in second casing 200, improve the comfort level that the user held electronic equipment.

Referring to fig. 4 and 5, the driving assembly 400 may further include a push rod 420, a first end of the push rod 420 is connected to the cam 410, a second end of the push rod 420 is connected to the support plate 300, and the cam 410 drives the support plate 300 to move between the first position and the second position through the push rod 420. In this embodiment, the push rod 420 may provide support for the support plate 300 on the one hand. On the other hand, the transmission of the push rod 420 can prevent the edge of the cam 410 from rubbing against the support plate 300 to cause the support plate 300 to slide along the screen 600, so that the support plate 300 can be better jointed with the first casing 100 and/or the second casing 200. Optionally, the push rod 420 may be slidably disposed in the receiving cavity 110. Specifically, a sliding groove or a sliding hole that is slidably engaged with the push rod 420 may be disposed in the accommodating cavity 110, so that the push rod 420 can move along the sliding groove or the sliding hole, and the movement stability of the push rod 420 is improved.

Referring to fig. 8 to 12, the cam 410 may be provided with a guide groove 411. The push rod 420 may be provided with a sliding portion 421. The push rod 420 may be supported to the guide slot 411 by a sliding portion 421, and the sliding portion 421 is slidably engaged with the guide slot 411. The push rod 420 is supported to the guide slot 411 by the sliding portion 421 so that the cam 410 can push or pull the push rod 420, that is, the cam 410 can apply two opposite forces to the push rod 420, so that the cam 410 can bring the support plate 300 to reciprocate between the first position and the second position by the push rod 420. Referring to fig. 11, the guide slot 411 may be disposed along an edge of the cam 410, and the first end of the push rod 420 is at least partially located in the guide slot 411, so that the first end of the push rod 420 may be far away from or close to the rotation shaft of the cam 410 along the guide slot 411 to drive the support plate 300 to reciprocate.

In the above embodiment, the cam 410 rotates to drive the push rod 420 to move, and the push rod 420 drives the supporting plate 300 to switch between the first position and the second position. Optionally, when the supporting plate 300 is located at the first position, the distance between the first end of the push rod 420 and the rotating shaft of the cam 410 is maximized, and then the cam 410 rotates clockwise or counterclockwise to drive the supporting plate 300 to move from the first position to the second position through the push rod 420. Therefore, the movement range of the push rod 420 can be effectively controlled by using the cam 410 to drive the push rod 420 to move, and the damage to the screen 600 caused by excessive movement of the push rod 420 pushing the support plate 300 can be avoided.

Referring to fig. 11 and 12, the first end of the push rod 420 may be provided with a first leg 422 and a second leg 423 at a spaced location. The first leg 422 and the second leg 423 may be provided with a sliding portion 421. The cam 410 is at least partially located in the gap between the first leg 422 and the second leg 423, guide grooves 411 are formed on both sides of the cam 410, and the sliding portions 421 on the first leg 422 and the second leg 423 are respectively in sliding fit with the guide grooves 411 on both sides of the cam 410. Optionally, the sliding portion 421 disposed on the first leg 422 protrudes toward a side of the first leg 422 close to the cam 410, so that the sliding portion 421 disposed on the first leg 422 can be at least partially disposed in the guide slot 411 of the cam 410 close to the side of the first leg 422. The sliding portion 421 disposed on the second leg 423 may protrude toward a side of the second leg 423 near the cam 410, so that the sliding portion 421 disposed on the second leg 423 may be at least partially located in the guide slot 411 of the cam 410 near the side of the second leg 423. In this embodiment, the cam 410 is at least partially disposed in the gap between the first leg 422 and the second leg 423, which improves the stability of the driving connection between the cam 410 and the push rod 420.

Referring to fig. 7 and 8, the transmission member 430 may be configured as a rack gear, and the transmission member 430 is engaged with the cam 410 for transmission. The transmission member 430 is configured as a rack and is engaged with the cam 410 for transmission, so that the transmission precision between the transmission member 430 and the cam 410 can be improved, and the flatness of the side of the support plate 300 where the screen 600 is supported by the second support part 310 and the first support part 120 can be improved.

In an alternative embodiment, the transmission member 430 may include a rack segment and a link segment. The length of the rack segment may be equal to the length of the corresponding arc segment of the tooth structure on the cam 410. Specifically, in the process of switching the support plate 300 from the first position to the second position, the rack segment can drive the cam 410 to rotate, and further drive the support plate 300 to move. With the support plate 300 in the second position, the cam 410 is located at one end of the rack segment near the first housing 100. As the first housing 100 and the second housing 200 continue to approach, the cam 410 moves from the rack segment to the link segment, and the transmission between the transmission member 430 and the cam 410 fails. In this embodiment, the rotation angle of the cam 410 can be adjusted by adjusting the length of the rack segment and/or the arc segment corresponding to the tooth structure of the cam 410, so as to realize the moving range of the support plate 300 in the direction approaching or departing from the screen 600.

The transmission member 430 can be of various types, and specifically, the transmission member 430 can be an independent component or a linkage assembly combining multiple components. For example: the transmission member 430 may also be a connecting rod, and specifically, a first end of the connecting rod is hinged to the first housing 100, a second end of the connecting rod is hinged to the cam 410, and the hinge point of the connecting rod and the cam 410 is different from the same axis as the rotating shaft of the cam 410, so that the cam 410 and the connecting rod form a crank link mechanism. The transmission member 430 may also be a pull rope and a torsion spring, and the torsion spring is disposed on the cam 410, so that the cam 410 can drive the support plate 300 to move from the first position to the second position through the push rod 420 under the action of the torsion spring. A first end of the pull cord is coupled to the first housing 100, a second end of the pull cord is coupled to the cam 410, and the pull cord may be at least partially wrapped around the cam 410. When the first housing 100 is far from the second housing 200, the pull rope can drive the cam 410 to overcome the elastic force generated by the torsion spring and rotate, so that the support plate 300 can be switched from the second position to the first position. Under the condition that the first casing 100 is close to the second casing 200, the torsion spring acts on the cam 410 to rotate, so that the cam 410 drives the supporting plate 300 to switch from the first position to the second position, and the pull rope is at least partially wound around the cam 410. For this reason, the embodiments of the present application do not limit the specific kind of the transmission member 430.

Referring to fig. 11, the cam 410 may include a circular arc section provided with a tooth structure. Drive member 430 may be a rack, with drive member 430 engaging the circular arc segment. In this scheme, can be through setting up the size that the circular arc section corresponds the central angle, inject driving medium 430 and drive the pivoted angular range of cam 410, and then can inject cam 410 and drive the scope that backup pad 300 removed through push rod 420. In addition, the cam 410 is provided with the arc section, and the tooth structure is arranged on the arc section, so that the structure of the cam 410 can be simplified, and the occupied space of the transmission assembly 400 is reduced.

Referring to fig. 7 and 8, the transmission assembly 400 may further include a bracket 440, the cam 410 may be rotatably disposed on the bracket 440 through the bracket 440, and the push rod 420 may be slidably engaged with the bracket 440. The bracket 440 includes a limiting groove 441, the transmission member 430 is slidably engaged with the limiting groove 441, and the transmission member 430 slides along the limiting groove 441. The limiting groove 441 can limit the moving track of the driving member 430, so as to prevent the driving member 430 from deviating, and improve the stability of the engagement transmission between the driving member 430 and the cam 410. Optionally, the cam 410 may be disposed in the limiting groove 441 to improve the compactness of the transmission assembly 400. Referring to fig. 5 and 8, the bracket 440 may be provided with a guide hole, the push rod 420 is slidably engaged with the guide hole, and the push rod 420 slides along the guide hole under the action of the cam 410.

In an alternative embodiment, the number of the transmission assemblies 400 may be plural. Optionally, the transmission assemblies 400 may be symmetrically distributed on both sides of the support plate 300 to balance the stress on the support plate 300 and prevent the support plate 300 from being overturned due to uneven stress. It should be noted that different numbers of the driving assemblies 400 may be provided according to the size of the supporting plate 300 or the required supporting force of the screen 600. For this reason, the embodiments of the present application do not limit the specific number of the transmission assemblies 400.

Referring to fig. 7 and 8, the supporting plate 300 may further include a limiting portion 320 and a second supporting portion 310, the limiting portion 320 may be located at two sides of the second supporting portion 310, and the second supporting portion 310 protrudes from one side of the limiting portion 320 close to the screen 600, when the supporting plate 300 is at the first position relative to the second housing 200, the limiting portion 320 may be stopped against the first housing 100 and/or the second housing 200, and the second supporting portion 310 is supported at one side of the screen 600 far from the display surface. The limiting portion 320 is stopped against the first casing 100 and/or the second casing 200, so that the supporting plate 300 can be prevented from moving too much in the process of switching from the second position to the first position, and the second supporting portion 310 can be ensured to be flush with the plane supporting the screen 600 in the first casing 100 and/or the second casing 200, so that the supporting frame can provide a flat supporting surface for the screen 600 under the condition that the display surface of the screen 600 is widened.

The first support part 120 may be provided on the first casing 100 and/or the second casing 200 to support the screen 600 through the first support part 120. With the support plate 300 in the first position, the second support 310 may be spliced with the first support 120. The second support part 310 may be joined to the first support part 120 such that the surfaces of the first support part 120 and the second support part 310 supporting the screen 600 are flush, to ensure flatness of the display surface of the screen 600 in the case where the display area of the screen 600 is increased.

Referring to fig. 1 and 2, the electronic device further includes a third housing 700, and the third housing 700 and the first housing 100 are symmetrically disposed at two opposite sides of the second housing 200. The third housing 700 may be connected to the support plate 300 through the driving assembly 400. In this embodiment, the third casing 700 is provided to enable the screen 600 of the electronic device to be widened towards the two sides of the second casing 200, and the support plate 300 can effectively support the screen 600 with the widened display area, so as to prevent the screen 600 from sinking.

Referring to fig. 6, the first housing 100 may be connected to the first side of the supporting plate 300 through the transmission assembly 400, and the third housing 700 may be connected to the second side of the supporting plate 300 through the transmission assembly 400, thereby facilitating the reduction of the length of the transmission member 430 and the space occupied by the transmission assembly 400.

Referring to fig. 9 and 10, the electronic device further includes a driving member 500, the driving member 500 being disposed between the first housing 100 and the third housing 700. The driving member 500 may drive the first and

third housings

100 and 700 toward or away from each other. The driving member 500 drives the first casing 100 and the third casing 700 to move away from or close to each other, so that not only the area of the display area of the screen 600 is increased, but also the supporting plate 300 can be driven to switch between the first position and the second position, the operation steps for widening the display area of the screen 600 are simplified, and the control difficulty of the electronic device is reduced.

Referring to fig. 9 and 10, the driving member 500 may include a motor 510, a screw 520, a first screw 530 and a second screw 540, the first screw 530 is disposed on the first housing 100, the second screw 540 is disposed on the third housing 700, the screw 520 is rotatably disposed on the second housing 200, the screw 520 includes a first thread section and a second thread section, the first thread section is in thread fit with the first screw 530, the second thread section is in thread fit with the second screw 540, and the thread directions of the first thread section and the second thread section are opposite. The motor 510 is connected to the lead screw 520, and the motor 510 can drive the lead screw 520 to rotate relative to the first screw 530 and the second screw 540, and respectively drive the first casing 100 and the third casing 700 to move relative to the second casing 200 through the first screw 530 and the second screw 540.

In this embodiment, the first thread section and the second thread section have opposite thread directions, so that the lead screw 520 can synchronously drive the first housing 100 and the third housing 700 to move relative to the second housing 200. Also, in the case where the first and

third housings

100 and 700 are coupled to the same support plate 300 through the transferring assembly 400, it is possible to ensure that the displacements of the respective portions of the support plate 300 moving with respect to the second housing 200 are equal. In addition, the screw 520, the first threaded sleeve 530 and the second threaded sleeve 540 are in transmission, so that a speed reduction effect can be achieved, a speed reduction gear box does not need to be arranged between the motor 510 and the screw 520, and the occupied space of the driving piece 500 is reduced.

The lead screw 520 may be provided with a first gear 521, the motor 510 may be provided with a second gear 511, the first gear 521 is engaged with the second gear 511, and the lead screw 520 and the motor 510 are driven by the first gear 521 and the second gear 511, so that the driving precision between the motor 510 and the lead screw 520 may be improved, and the distance between the first casing 100 and the third casing 700, which are far away from or close to each other, may be precisely controlled. Further, the first gear 521 and the second gear 511 are both bevel gears, so that the transmission between the motor 510 and the lead screw 520 is smoother, and abnormal sound generated by the transmission between the motor 510 and the lead screw 520 is reduced.

The electronic device disclosed in the embodiment of the application can be a mobile phone, a watch, a vehicle-mounted display, a tablet computer, an electronic book reader, a medical apparatus and the like, and the embodiment of the application does not limit the specific type of the electronic device.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An electronic device is characterized by comprising a first shell, a second shell, a supporting plate, a transmission component and a screen,

when the support plate is located at the first position, the support plate abuts against the screen to support the screen; with the support plate in the second position, the support plate is retracted into the receiving cavity.

2. The electronic device of claim 1, wherein the transmission assembly further comprises a push rod, a first end of the push rod being coupled to the cam, and a second end of the push rod being coupled to the support plate.

3. The electronic apparatus according to claim 2, wherein the cam is provided with a guide groove, and the push rod is provided with a slide portion, the push rod being supported by the guide groove through the slide portion, the slide portion being slidably fitted with the guide groove.

4. The electronic device of claim 3, wherein the first end of the push rod is provided with a first leg and a second leg at an interval, and the first leg and the second leg are both provided with the sliding portion;

the cam is at least partially positioned in a gap between the first supporting leg and the second supporting leg, the guide grooves are formed in two sides of the cam, and the sliding parts on the first supporting leg and the second supporting leg are in sliding fit with the guide grooves in two sides of the cam respectively.

5. The electronic device of claim 1, wherein the transmission member is a rack gear, and the transmission member is in meshing transmission with the cam.

6. The electronic device of claim 5, wherein the cam includes a circular arc segment provided with a tooth structure, the transmission member engaging with the circular arc segment.

7. The electronic device of claim 2, wherein the transmission assembly further comprises a bracket, the cam is rotatably disposed on the bracket through the bracket, and the push rod is slidably engaged with the bracket;

the support includes the spacing groove, the driving medium with spacing groove sliding fit, just the driving medium is followed the spacing groove slides.

8. The electronic device of claim 1, wherein the supporting plate comprises a position-limiting part and a second supporting part, the position-limiting part is located at two sides of the second supporting part, and the second supporting part protrudes from one side of the position-limiting part close to the screen,

under the condition that the supporting plate is at the first position relative to the second shell, the limiting part can be abutted against the first shell and/or the second shell, and the second supporting part is supported on one side of the screen, which is far away from the display surface.

9. The electronic device of claim 1, further comprising a third housing, wherein the third housing and the first housing are symmetrically disposed on opposite sides of the second housing.

10. The electronic device of claim 9, further comprising a driver disposed between the first housing and the third housing; the driving piece can drive the first shell and the third shell to move close to or away from each other.

11. The electronic device of claim 10, wherein the driving member comprises a motor, a lead screw, a first nut, and a second nut,

the first threaded sleeve is arranged on the first shell, the second threaded sleeve is arranged on the third shell,

the screw rod is rotatably arranged on the second shell and comprises a first thread section and a second thread section, the first thread section is in thread fit with the first thread sleeve, the second thread section is in thread fit with the second thread sleeve, and the thread directions of the first thread section and the second thread section are opposite;

the motor is connected with the lead screw, can drive the lead screw to rotate relative to the threaded sleeve, and respectively drives the first shell and the third shell to move relative to the second shell through the first threaded sleeve and the second threaded sleeve.

12. The electronic device of claim 11, wherein the lead screw is provided with a first gear, the motor is provided with a second gear, and the first gear is engaged with the second gear.