CN113990189B - Electronic equipment - Google Patents

The application discloses electronic equipment belongs to the technical field of communication equipment. The electronic equipment comprises a first shell, a second shell, a screen assembly, a shaft assembly, a sliding block and a first connecting rod mechanism, wherein the first shell and the second shell are in running fit through the shaft assembly, and the sliding block is in sliding fit with the shaft assembly. The shaft assembly is provided with a bevel gear, the sliding block is provided with a first tooth structure meshed with the bevel gear, and the shaft assembly can drive the sliding block to move along the shaft assembly. The first section of screen subassembly and first casing sliding fit, the both ends of first link mechanism link to each other with slider and the first section of screen subassembly respectively, and at electronic equipment in folding state's in-process, first casing and/or second casing drive axle subassembly rotate relative slider, and axle subassembly drives the slider and removes along the axle subassembly. The sliding block drives the first section of the screen component to move towards the direction of approaching or separating from the second section of the screen component through the first connecting rod mechanism. The scheme can solve the problem that the flexible screen is easy to damage in the folding process of the electronic equipment.

Electronic equipment

Technical Field

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

Background

With the development of technology, the development of electronic devices is faster and faster, and meanwhile, the requirements of users on the electronic devices are higher and higher. At present, flexible screens are also widely applied to electronic devices, so as to form folding electronic devices.

Folding electronic devices often present folding problems during folding. For example, when a foldable electronic device is folded inwards, because the bending radius at the hinge is smaller, the flexible screen is more easily extruded to cause crease or damage. When the foldable electronic equipment is folded outwards, the bending radius at the hinge is too large, so that the flexible screen is easily pulled and deformed excessively, and even the flexible screen is broken. As can be seen, the current folding electronic device has a problem that the flexible screen is easily damaged during the folding process, which ultimately results in a shorter service life of the flexible screen.

Disclosure of Invention

An object of the embodiment of the application is to provide an electronic device, which can solve the problem that the flexible screen is easily damaged in the folding process of the electronic device.

In order to solve the technical problems, the application is realized as follows:

the electronic equipment comprises a first shell, a second shell, a screen component, a shaft component, a sliding block and a first connecting rod mechanism,

the first shell and the second shell are in running fit through the shaft assembly, the sliding block is in sliding fit with the shaft assembly, and the sliding block can move along the axial direction of the shaft assembly;

the shaft assembly is provided with a bevel gear, the sliding block is provided with a first tooth structure meshed with the bevel gear, and the shaft assembly can drive the sliding block to move along the shaft assembly;

the first section of the screen component is in sliding fit with the first shell, two ends of the first connecting rod mechanism are respectively connected with the sliding block and the first section of the screen component,

in the folding process of the electronic equipment, the first shell and/or the second shell drives the shaft assembly to rotate relative to the sliding block, and the shaft assembly drives the sliding block to move along the shaft assembly; the sliding block drives the first section of the screen component to move towards the direction of approaching or separating from the second section of the screen component through the first connecting rod mechanism.

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

in the electronic equipment disclosed by the embodiment of the invention, the first shell and the second shell are in running fit through the shaft assembly, so that the first shell and the second shell can rotate relatively, and the first shell and the second shell are unfolded and folded. Through setting up the helical gear on the axle subassembly, set up first tooth structure on the slider, helical gear and first tooth structure meshing, and then make electronic equipment at folding in-process, first casing is relative second casing to keeping away from the one side pivoted condition of screen subassembly promptly, first casing and second casing relative pivoted in-process can drive the slider and remove along the pivot, and then drive first link mechanism through the slider, with the direction removal of the second section that is close to or keeps away from the screen subassembly through the first section of link mechanism drive screen subassembly, in order to avoid the screen subassembly to be pulled or extruded and damage at electronic equipment folding in-process, and then reach the purpose of protecting the screen subassembly, solve the easy problem that damages of screen subassembly of electronic equipment folding in-process.

Drawings

FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the present invention in an unfolded state at a first viewing angle;

FIG. 2 is a schematic diagram of an electronic device in a folded state as disclosed in one embodiment of the invention;

FIG. 3 is a schematic diagram of an electronic device according to an embodiment of the present invention in an unfolded state at a second viewing angle;

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

FIG. 5 is a schematic diagram of a transmission structure of an electronic device according to an embodiment of the present invention;

FIG. 6 is a schematic view of a transmission structure and screen assembly according to an embodiment of the present invention, shown in a first view angle;

FIG. 7 is a schematic view of a transmission structure and screen assembly according to an embodiment of the present invention, shown in a second view after assembly;

FIG. 8 is a schematic cut-away view of an electronic device as disclosed in one embodiment of the invention;

FIG. 9 is a partial enlarged view at B in FIG. 8;

FIG. 10 is a schematic view of a screen assembly disclosed in one embodiment of the invention;

FIG. 11 is a cross-sectional view of an electronic device in a folded state, as disclosed in one embodiment of the invention;

FIG. 12 is a cross-sectional view of an electronic device in an expanded state as disclosed in one embodiment of the invention;

fig. 13 is a partial schematic view of an electronic device according to an embodiment of the present invention.

In the figure: 100-a first housing; 110-a first bump; 120-a second chute; 130-a second tooth structure; 200-a second housing; 210-a third tooth structure; 300-screen assembly; 310-a second support plate; 311-connecting blocks; 320-a third support plate; 330-a flexible screen; 400-shaft assembly; 410-bevel gear; 420-a first rotating shaft; 430-a second spindle; 440-bracket; 450-a first support plate; 500-sliding blocks; 510-a first tooth structure; 600-a first link mechanism; 610-a first link; 611-a first chute; 620-articulation joint; 630-a second link; 700-a second linkage; 800-rotation limiter.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The electronic device provided in the embodiments of the present application is described in detail below with reference to fig. 1 to 13 through specific embodiments and application scenarios thereof.

Referring to fig. 1 to 7, the electronic apparatus described herein includes a first housing 100, a second housing 200, a screen assembly 300, a shaft assembly 400, a slider 500, and a first link mechanism 600. The first housing 100 and the second housing 200 are basic structural members, and can provide a mounting base for each component in the electronic device.

Referring to fig. 1 and 2, the first housing 100 and the second housing 200 are rotatably coupled by the shaft assembly 400, so that the electronic device can be folded or unfolded by rotating the first housing 100 and the second housing 200 with respect to each other.

Referring to fig. 3 to 6, the slider 500 is slidably engaged with the shaft assembly 400, and the slider 500 is movable in the axial direction of the shaft assembly 400. Illustratively, there are many ways in which the slider 500 may be a sliding fit with the shaft assembly 400, such as: the shaft assembly 400 is provided with a guide groove, and the sliding block 500 is at least partially positioned in the guide groove, so that the sliding block 500 can slide along the guide groove, and further the sliding fit between the sliding block 500 and the shaft assembly 400 is realized. Alternatively, the slider 500 is sleeved on the shaft assembly 400 and is in clearance fit with the shaft assembly 400, so that the slider 500 can slide along the shaft assembly 400. For this reason, the present embodiment does not limit the specific manner in which the slider 500 is slidably engaged with the shaft assembly 400.

Referring to fig. 4, the shaft assembly 400 is provided with a bevel gear 410, and the slider 500 is provided with a first tooth structure 510 engaged with the bevel gear 410, and the shaft assembly 400 may move the slider 500 along the shaft assembly 400 through the bevel gear 410 and the first tooth structure 510. Illustratively, the first tooth structure 510 may be a rack or pinion provided on the slider 500. Of course, the tooth slots may be formed on the slider 500 so that the helical gear 410 may be engaged with the tooth slots on the slider 500. For this reason, the present embodiment is not limited to a specific implementation of the first tooth structure 510.

It should be noted that, the shaft assembly 400 drives the bevel gear 410 to rotate during the rotation process, and the direction of the force generated between the bevel gear 410 and the first tooth structure 510 is oblique to the axis of the bevel gear 410, that is, the force generated between the bevel gear 410 and the first tooth structure 510 has a component force along the axial direction of the shaft assembly 400. Thus, the shaft assembly 400 may move the slider 500 along the shaft assembly 400 by the engagement of the helical gear 410 and the first tooth structure 510.

Referring to fig. 9, the screen assembly 300 includes a first segment and a second segment, the first segment and the second segment being connected. Illustratively, a first section of the screen assembly 300 is disposed in the first housing 100 and a second section of the screen assembly 300 is disposed in the second housing 200. The first housing 100 is rotatable relative to the second housing 200 between a first position and a second position. In the case that the first housing 100 is at the first position relative to the second housing 200, the display surfaces of the screen assemblies 300 are located on the same plane, so that the electronic device is unfolded, that is, the electronic device is in an unfolded state. With the first housing 100 in the second position relative to the second housing 200, the first housing 100 and the second housing 200 are folded with each other, i.e., the electronic device is in a folded state. In an alternative embodiment, the electronic device is an out-folded electronic device, that is, when the first housing 100 is at the second position relative to the second housing 200, a side of the first housing 100 away from the screen assembly 300 is stacked on a side of the second housing 200 away from the screen assembly 300, so as to realize out-folding of the electronic device. In another alternative embodiment, the electronic device is an foldable electronic device, that is, when the first housing 100 is at the second position relative to the second housing 200, a side of the first housing 100 near the screen assembly 300 is stacked on a side of the second housing 200 near the screen assembly 300, so as to realize the foldable electronic device.

The first section of the screen assembly 300 is slidably engaged with the first housing 100 such that the first section of the screen assembly 300 can slide along the first housing 100. Both ends of the first link mechanism 600 are respectively connected to the slider 500 and the first section of the screen assembly 300, so that the slider 500 can drive the first section of the screen assembly 300 to slide relative to the first housing 100 through the first link mechanism 600. Illustratively, during folding of the electronic device, the first housing 100 and/or the second housing 200 rotate the shaft assembly 400 relative to the slider 500. The shaft assembly 400 moves the slider 500 along the shaft assembly 400. The slider 500 drives the first section of the screen assembly 300 to move toward or away from the second section of the screen assembly 300 through the first link mechanism 600.

It should be noted that, the electronic device fold-out described in the specification of the present application refers to: in the case of the electronic device in the folded state, the screen assembly 300 is located on a side of the first housing 100 and the second housing 200 close to the outer surface, that is, the first section of the screen assembly 300 is disposed on a side of the first housing 100 facing away from the second housing 200, and the second section of the screen assembly 300 is disposed on a side of the second housing 200 facing away from the first housing 100. Thus, in the event of a fold-out of the electronic device, display may still be provided through the screen assembly 300.

The electronic device described in the specification of the present application means that: in the case of the electronic device in the folded state, the screen assembly 300 is located on a side of the first housing 100 and the second housing 200 away from the outer surface, i.e., the first section of the screen assembly 300 is disposed on a side of the first housing 100 close to the second housing 200, and the second section of the screen assembly 300 is disposed on a side of the second housing 200 close to the first housing 100. Accordingly, in case of the electronic device being folded in, the screen assembly 300 may be protected by folding the electronic device.

In the process of folding the electronic device, that is, the first housing 100 rotates relative to the second housing 200 towards the side far away from the screen assembly 300, the first link mechanism 600 drives the first section of the screen assembly 300 to move towards the second section close to the screen assembly 300, so that the screen assembly 300 is prevented from being pulled in the process of folding the electronic device, and the problem that the screen assembly 300 is easily damaged due to pulling in the process of folding the electronic device is solved.

In the folding process of the electronic device, that is, the first housing 100 rotates towards the side close to the screen assembly 300 relative to the second housing 200, the first link mechanism 600 drives the first section of the screen assembly 300 to move towards the second section far away from the screen assembly 300, so that the first section and the second section of the screen assembly 300 are prevented from being mutually extruded in the folding process of the electronic device, and the problem that the screen assembly 300 is easy to be extruded and damaged in the folding process of the electronic device is solved.

Therefore, the above-mentioned scheme can avoid the screen assembly 300 from being pulled or pressed in the folding process of the electronic device, thereby achieving the purpose of protecting the screen assembly. In addition, during use of the electronic device, the screen assembly 300 may be subjected to forces in various directions, such as: the friction force generated by the fingers during the sliding of the surface of the screen assembly 300. The transmission of the bevel gear 410 and the first tooth structure 510 in the above embodiment can increase the resistance of the screen assembly 300 to move the first link mechanism 600. Accordingly, the electronic device according to the above embodiment can prevent the first section of the screen assembly 300 from sliding relative to the first housing 100 in the unfolded state. Therefore, the electronic device described in the above embodiment does not need to add a damping structure for preventing the screen assembly 300 from sliding relative to the first housing 100.

Referring to fig. 3 to 6, the shaft assembly 400 includes a first rotation shaft 420, a second rotation shaft 430, and a bracket 440. The first rotating shaft 420 and the second rotating shaft 430 are disposed in parallel to the bracket 440, and the first rotating shaft 420 and the second rotating shaft 430 are both in rotational fit with the bracket 440. The first shaft 420 is connected to the first housing 100, and the first housing 100 can drive the first shaft 420 to rotate. The second rotating shaft 430 is connected to the second housing 200, and the second housing 200 can drive the second rotating shaft 430 to rotate.

In an alternative embodiment, the first shaft 420 may be fixedly connected to the first housing 100, such that the first housing 100 may rotate the first shaft 420. Of course, the first shaft 420 and the first housing 100 may be detachably connected, and the first shaft 420 and the first housing 100 rotate to limit. For example, one of the first shaft 420 and the first housing 100 is provided with a limiting groove, and the other is provided with a limiting protrusion, and the limiting protrusion is at least partially located in the limiting groove, so that the first housing 100 can drive the first shaft 420 to rotate. For this reason, the present embodiment does not limit the connection manner between the first housing 100 and the first rotation shaft 420. Similarly, the second housing 200 and the second shaft 430 may be connected in the same manner as the first housing 100 and the first shaft 420. Therefore, the connection manner of the second housing 200 and the second rotating shaft 430 will not be further described in the present specification.

In the above embodiment, the first rotating shaft 420 and the second rotating shaft 430 are disposed in parallel, so that the first housing 100 and the second housing 200 rotate around two parallel axes respectively, and the space for avoiding the first housing 100 and the second housing 200 from each other is increased, so as to avoid mutual interference of the first housing 100 and the second housing 200 in the unfolding or folding process of the electronic device. Further, the interval between the first and second rotating shafts 420 and 430 may be adjusted according to the thickness of the first and second housings 100 and 200. Specifically, the larger the interval between the first and second rotating shafts 420 and 430, the larger the space formed by the first and second housings 100 and 200 at the shaft assembly 400 to be escaped from each other. Further, the interval between the first rotation shaft 420 and the second rotation shaft 430 needs to be selected according to the thickness of the first and second cases 100 and 200. For this reason, the embodiment does not define the interval between the first rotation shaft 420 and the second rotation shaft 430.

In an alternative embodiment, the first axis of rotation 420 is spaced apart from the second axis of rotation 430 by a first distance, and the first axis of rotation 420 is spaced apart from the side of the first housing 100 remote from the first section of the screen assembly 300 by a second distance. The second rotation shaft 430 is a third distance from a side of the second housing 200 remote from the second section of the screen assembly 300. The first distance is not smaller than the sum of the second distance and the third distance, and then under the condition that the electronic equipment is folded outwards, the first shell 100 and the second shell 200 can be better attached to reduce the thickness of the electronic equipment after being folded, and the comfort level of the electronic equipment after being folded is improved.

Referring to fig. 4, 5 and 13, the shaft assembly 400 further includes a first support plate 450, wherein the first support plate 450 is disposed on one side of the bracket 440 near the screen assembly 300, and the first support plate 450 is at least partially supported on the screen assembly 300, so as to provide a supporting force for the screen assembly 300 where the first housing 100 and the second housing 200 are joined by the first support plate 450, and prevent the screen assembly 300 where the first housing 100 and the second housing 200 are joined from being forced to be depressed. Illustratively, the first support plate 450 is circular arc-shaped, and the corresponding axis of the first support plate 450 coincides with the axis of rotation of the first housing 100 relative to the second housing 200, so that the screen assembly 300 can better fit with the first support plate 450 when the electronic device is folded.

In an alternative embodiment, the first support plate 450 may be fixedly disposed on the bracket 440. Illustratively, the first support plate 450 may be fixed with the bracket 440 by screws. Of course, the first support plate 450 and the bracket 440 may be provided as a unitary structure.

Referring to fig. 3 to 6, the slider 500 has a first mounting hole through which the slider 500 is in rotational engagement with the first rotation shaft 420 and a second mounting hole through which the slider 500 is in rotational engagement with the second rotation shaft 430, and the slider 500 is movable along the first rotation shaft 420 and the second rotation shaft 430. The first rotating shaft 420 and the second rotating shaft 430 are respectively in sliding fit with the sliding block 500 through the first mounting hole and the second mounting hole, so that the sliding block 500 can slide along the shaft assembly 400, and the sliding block 500 can be limited in rotation. In addition, the slider 500 may also improve the stability of the first and second rotation shafts 420 and 430. The first housing 100 and the second housing 200 may be subjected to a force to separate from each other during use of the electronic device, for example, an operator holds only the first housing 100 or the second housing 200 of the electronic device during use of the electronic device. Accordingly, the first and second shafts 420 and 430 may be subjected to forces separated from or approaching each other. The above scheme can limit the space between the first rotation shaft 420 and the second rotation shaft 430 through the slider 500, thereby improving the stability of the first rotation shaft 420 and the second rotation shaft 430.

In an alternative embodiment, the first link mechanism 600 includes a first link 610, a first end of the first link 610 is rotatably engaged with the slider 500, and the first link 610 is rotatable relative to the slider 500 about a first axis parallel to or coincident with an axis of the first shaft 420, and a second axis perpendicular to the first axis. The second end of the first link 610 is connected to the first section of the screen assembly 300, and the first link 610 may rotate with the first housing 100 relative to the slider 500. Illustratively, the second end of the first link 610 is in rotational engagement with the screen assembly 300.

Referring to fig. 4 to 6, the slider 500 increases or decreases an angle between the first link 610 and the shaft assembly 400 during the axial movement of the shaft assembly 400, and thus may pull the first section of the screen assembly 300 to move along the first housing 100. There are many ways in which the first end of the first link 610 is rotationally coupled to the slider 500, for example, the first end of the first link 610 may be coupled to the slider 500 via a universal joint. There are many types of universal joints, for example: cross-shaft rigid universal joints, ball-and-fork universal joints, flexible universal joints, ball-and-socket universal joints, etc. For this reason, the present application is not limited to a specific manner in which the first end of the first link 610 is rotatably coupled to the slider 500.

Referring to fig. 4, the first link 610 has a first sliding groove 611, the first housing 100 has a first protrusion 110, the first protrusion 110 is at least partially located in the first sliding groove 611, the first protrusion 110 is slidably engaged with the first sliding groove 611, and the first link 610 is rotatable relative to the first protrusion 110. Illustratively, during the movement of the slider 500 along the shaft assembly 400, the first link 610 may rotate with the first protrusion 110 as a supporting point and slide with respect to the first protrusion 110. Referring to fig. 4, as the angle between the first link 610 and the shaft assembly 400 is gradually reduced, the greater the resistance of the slider 500 to the movement of the first section of the screen assembly 300 by the first link 610. It should be noted that, the included angle between the first link 610 and the shaft assembly 400 in the embodiment of the present application refers to an included angle formed between the first link 610 and the shaft assembly 400 that is less than or equal to 90 °. In this embodiment, by providing the first protrusion 110, in the case that the angle between the first link 610 and the shaft assembly 400 is gradually reduced, the length of the first link 610 between the first protrusion 110 and the slider 500 is increased, and thus the resistance of the slider 500 to movement with respect to the shaft assembly 500 can be reduced.

In an alternative embodiment, the first link mechanism 600 further includes a hinge 620, where the hinge 620 is rotatably engaged with the slider 500, and the hinge 620 rotates about a first axis relative to the slider 500, and the first end of the first link 610 is rotatably engaged with the hinge 620, and the first link 610 rotates about a second axis relative to the hinge 620. Illustratively, the hinge 620 is engaged with the slider 500 through the shaft aperture such that the hinge 620 may rotate about the first axis. Optionally, the slider 500 is provided with a relief opening, and the hinge 620 is rotationally matched with the first rotation shaft 420, so that the hinge 620 can be rotationally matched with the slider 500 through the first rotation shaft 420.

Referring to fig. 4 to 6, the first link mechanism 600 includes a second link 630, the second link 630 being slidably coupled to the first housing 100, a first end of the second link 630 being coupled to a first section of the screen assembly 300, and a second end of the second link 630 being rotatably coupled to a second end of the first link 610. Illustratively, the first housing 100 is provided with a chute, and the second link 630 is at least partially positioned within the chute such that the second link 630 can slide along the chute. Further, the guiding direction of the sliding groove is the same as the moving direction of the first section of the screen assembly 300 relative to the first housing 100, so as to avoid the jamming of the first section of the screen assembly 300 in the sliding process relative to the first housing 100, and improve the user experience.

Referring to fig. 3 to 6, the number of the first link mechanisms 600 is two, and the two first link mechanisms 600 are symmetrically disposed at both sides of the first housing 100 in the axial direction of the shaft assembly 400, respectively. This embodiment can prevent the screen assembly 300 from being jammed during the movement relative to the first housing 100. Of course, the number of first linkages 600 may also be greater than two. For this reason, the present embodiment does not limit the specific number of first link mechanisms 600.

Referring to fig. 3 to 6, the electronic device further includes a second link mechanism 700, the second section of the screen assembly 300 is slidably coupled with the second housing 200, and the second link mechanism 700 is connected with the slider 500 and the second section of the screen assembly 300, respectively. Illustratively, the second linkage 700 may be identical in structure to the first linkage 600. For this reason, the specific structure of the second link mechanism 700 and the connection manner of the second link mechanism 700 to the slider 500 or the screen assembly 300 are not further described in the present specification. Illustratively, the number of second linkages 700 may be two. The two second link mechanisms 700 are symmetrically disposed on both sides of the second housing 200 along the axial direction of the shaft assembly 400, respectively.

Referring to fig. 3 and 6, the screen assembly 300 includes a second support plate 310, a third support plate 320, and a flexible screen 330, a first section of the flexible screen 330 is connected to the second support plate 310, a second section of the flexible screen 330 is connected to the third support plate 320, the second support plate 310 is slidably engaged with the first housing 100, and the second support plate 310 is movable along the first housing 100 in a direction approaching or separating from the shaft assembly 400, the third support plate 320 is slidably engaged with the second housing 200, and the third support plate 320 is movable along the second housing 200 in a direction approaching or separating from the shaft assembly 400. Illustratively, the second support plate 310 and the third support plate 320 may be made of hard materials, and the first section of the flexible screen 330 may be adhesively fixed to the second support plate 310 and the second section of the flexible screen 330 may be adhesively fixed to the third support plate 320. The types of hard materials are numerous, for example: for this reason, the present embodiment is not limited to the specific kind of materials of the second support plate 310 and the third support plate 320.

Referring to fig. 8 and 9, the first and second housings 100 and 200 are provided with a sliding slot 120, and the first section of the screen assembly 300 is at least partially positioned within the sliding slot 120 of the first housing 100 so that the screen assembly 300 can slidably engage the first housing 100. Similarly, the second section of the screen assembly 300 is at least partially positioned within the chute 120 of the second housing 200 such that the second section of the screen assembly 300 is a sliding fit with the second housing 200. Illustratively, the dimension of the second support plate 310 in the axial direction of the shaft assembly 400 is greater than the dimension of the flexible screen 330 in the axial direction of the shaft assembly 400, so that the second support plate 310 may protrude from the flexible screen 330 at both sides of the axial direction of the shaft assembly 400, and thus the first section of the screen assembly 300 is slidably engaged with the first housing 100 by at least part of the portion of the second support plate 310 protruding from the flexible screen 330 being located in the chute 120. Similarly, the dimension of the third support plate 320 in the axial direction of the shaft assembly 400 is greater than the dimension of the flexible screen 330 in the axial direction of the shaft assembly 400, so that the two sides of the third support plate 320 in the axial direction of the shaft assembly 400 can protrude from the flexible screen 330, and at least part of the portion of the third support plate 320 protruding from the flexible screen 330 is located in the chute 120, so that the first section of the screen assembly 300 is in sliding fit with the second housing 200.

Referring to fig. 3 to 6, the first housing 100 is provided with the second tooth structure 130, the second housing 200 is provided with the third tooth structure 210, the second tooth structure 130 is engaged with the third tooth structure 210, and the first housing 100 rotates the second housing 200 through the second tooth structure 130 and the third tooth structure 210 in the case that the first housing 100 rotates. The second tooth structure 130 and the third tooth structure 210 are engaged, so that the first housing 100 and the second housing 200 can be synchronously rotated, and the user experience is improved. Alternatively, the second tooth structure 130 may be an arc-shaped tooth segment disposed on the first housing 100, and the third tooth structure 210 may be an arc-shaped tooth segment disposed on the second housing 200. Of course, the second tooth structure 130 may also be a gear fixedly disposed on the first housing 100, and the third tooth structure 210 may be a gear fixedly disposed on the second housing 200. Referring to fig. 6, exemplarily, the first housing 100 and the second housing 200 are each provided with a torsion bar, the second tooth structure 130 is provided on the torsion bar located at the first housing 100, and the third tooth structure 210 is provided on the torsion bar located at the second housing 200.

In an alternative embodiment, the electronic device includes a rotation limiter 800, where the rotation limiter 800 is disposed on the first shaft 420 and/or the second shaft 430, so as to limit the electronic device from being folded inwards or outwards by the rotation limiter 800. Illustratively, where the electronic device is a fold-out electronic device, the rotational stop 800 limits the fold-in of the electronic device. In the case where the electronic device is an inward folding electronic device, the rotation limiter 800 limits outward folding of the electronic device.

Illustratively, the rotation limiter 800 has a fixing portion and a limiting portion, wherein the fixing portion is perpendicular to the limiting portion, and the fixing portion is fixed on the bracket 440.

In an alternative embodiment, in the case where the electronic device is an out-folding electronic device, the limiting portion is folded toward a side of the first housing 100 and the second housing 200 near the display surface of the screen assembly 300. In the case of unfolding the electronic device, the limiting portions are respectively abutted against one sides of the first housing 100 and the second housing 200, which are close to the display surface of the screen assembly 300, so as to avoid the electronic device from being folded inwards.

In another embodiment, in the case that the electronic device is an in-folding electronic device, the limiting portion is folded toward a side of the first housing 100 and the second housing 200 away from the display surface of the screen assembly 300. In the case of unfolding the electronic device, the limiting portions are respectively abutted to one side of the first housing 100 and one side of the second housing 200 away from the display surface of the screen assembly 300, so as to avoid the electronic device from being folded outwards.

The electronic device disclosed in the embodiment of the application may be a mobile phone, a watch, a vehicle-mounted display, a tablet computer, an electronic book reader, a medical instrument and the like, and the embodiment of the application is not limited to specific types of electronic devices.

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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.