TW202414152A - Foldable electronic device - Google Patents

Abstract

A foldable electronic device includes a central body, a connecting module, a first wing, a first transmission member, a first panel body, a second wing, a second transmission member, a second panel body, a synchronous engaging module, an elastic module and a flexible screen. The first panel body and the second panel body can transform between an unfolded status and a folded status. When the first panel body and the second panel body are in the unfolded status, a first supporting plate, a second supporting plate, and a lifting plate collectively support a flexible section. When the first panel body and the second panel body are in the folded status, the first supporting plate, the second supporting plate, and the lifting plate collectively define a yielding space for accommodating the flexible section.

Description

Folding electronic devices

The present invention relates to a foldable electronic device, in particular to a foldable electronic device with a swivel screen and synchronously pivoted left and right side connecting rod structures.

Currently, foldable electronic devices are becoming more and more popular in the market. They include known structures such as a flexible display screen and a hinge mechanism. By coordinating a plurality of connecting rod structures, a lifting plate and a plurality of supporting plates, the flexible display screen can be flattened or bent when the foldable electronic device is switched between the unfolded and folded states. However, the known foldable electronic devices may face problems such as insufficient support force for the flexible display screen in the unfolded state, insufficient accommodation space for the flexible display screen in the folded state, or asynchronism and unsmooth movement when switching between the unfolded and folded states.

In view of this, the present invention provides a foldable electronic device that takes into account and ensures supporting force, space and synchronous opening and closing.

The main purpose of the present invention is to provide a foldable electronic device. Different from the hinge structure of the existing foldable electronic device, the present invention uses a symmetrically arranged four-link structure and is matched with a transmission member, a wing member, a support plate and a plurality of actuating modules. By means of the arc grooves, arc sliders and gear synchronous hinge structures that cooperate with each other on the transmission member and the wing member, the foldable screen can be flattened and bent. The device can be switched between different states to improve the smoothness of device operation. In addition, the assembly structure of the components increases the central support force of the flexible screen in the unfolded state. When switching to the folded state, the protrusion presses against the support plate and the support plate is attracted by the magnet to ensure the space in the folded state, which can meet the user's needs for durability and smoothness in operating foldable electronic devices.

To achieve the above-mentioned purpose, the present invention provides a foldable electronic device, which includes a central base, a connecting module, a first wing, a first transmission member, a first panel body, a second wing, a second transmission member, a second panel body, a locking synchronization module, an elastic module, and a retractable screen. The central base includes a main body, a lifting plate, at least one first inner arc-shaped slider and at least one second inner arc-shaped slider, the first inner arc-shaped slider and the second inner arc-shaped slider are respectively formed on the main body at intervals, the lifting plate can be movably arranged on the main body, and can be relatively switched between a highest position and a lowest position; the connecting module is arranged on the central base, and includes a The first shaft and the second shaft, the first shaft extends along a first axis and has a first main gear, the second shaft extends along a second axis and has a second main gear; the first wing member includes a first support plate, at least one first inner arc groove and at least one first outer arc groove, the first support plate can be movably arranged on one side of the lifting plate, the first inner arc slide block is slidably arranged in the first inner arc groove, so that the first support plate can be movably arranged on one side of the lifting plate, and the first inner arc slide block is slidably arranged in the first inner arc groove, so that the first support plate can be movably arranged on one side of the lifting plate, and the first inner arc slide block can be slidably arranged in the first inner arc groove, so that the first support plate can be movably arranged on one side of the lifting plate, and the first inner arc slide block can be mov ... A wing can pivot relative to the main body with a first inner virtual axis as the center; the first transmission member is sleeved on the first shaft and rotates synchronously with the first shaft; the first panel body includes a first bearing member, the first bearing member can present linear sliding relative to the first transmission member, and includes at least one first outer arc-shaped slider, the first outer arc-shaped slider is slidably arranged in the first outer arc-shaped groove, so that the first bearing member can be relative to the first A wing member pivots about a first outer virtual axis; the second wing member includes a second support plate, at least one second inner arc groove and at least one second outer arc groove, the second support plate can be movably arranged on the other side opposite to the lifting plate, the second inner arc slide block is slidably arranged in the second inner arc groove, whereby the second wing member can pivot relative to the main body with a second inner virtual axis as the center; the second transmission member is sleeved on the second axis. The second panel body includes a second bearing member, the second bearing member can slide linearly relative to the second transmission member, and includes at least one second outer arc-shaped slider, the second outer arc-shaped slider is slidably arranged in the second outer arc-shaped groove, whereby the second bearing member can pivot relative to the second wing member with a second outer virtual axis; the engagement synchronization module includes a synchronization support block, a first auxiliary gear and a second gear. and a second auxiliary gear, the two ends of the synchronous support block are respectively sleeved on the first shaft and the second shaft, the first auxiliary gear and the second auxiliary gear are arranged on the synchronous support block in a reverse rotational manner and meshed with each other, the first auxiliary gear and the first main gear are meshed in a reverse rotational manner, and the second auxiliary gear and the second main gear are meshed in a reverse rotational manner, so that the first transmission member and the second transmission member can rotate synchronously in the reverse direction The elastic module includes a push member, which can be slidably mounted on the first shaft and the second shaft, and can be movably engaged with the first transmission member and the second transmission member; the flexible screen is arranged on the first panel body and the second panel body, and includes a bendable area; wherein the first panel body and the second panel body can be switched between an unfolded state and a folded state, when the first panel body and the second panel body When the body is in the unfolded state, the flexible screen is flattened, the lifting plate is located at the highest position, and the first supporting plate, the second supporting plate and the lifting plate jointly support the bendable area. When the first panel body and the second panel body are in the folded state, the flexible screen is folded, the lifting plate is located at the lowest position, and the first supporting plate, the second supporting plate and the lifting plate jointly define an accommodation space to accommodate the bendable area.

In one embodiment of the present invention, when the first panel body and the second panel body are in the unfolded state relative to each other, the first supporting plate and the second supporting plate are substantially coplanar with the lifting plate; when the first panel body and the second panel body are in the folded state relative to each other, the first panel body and the second panel body are substantially parallel with an interval, and the first supporting plate and the second supporting plate are not parallel to the lifting plate to jointly define the accommodating space.

In one embodiment of the present invention, when the first panel body and the second panel body are transformed from the unfolded state to the folded state, the first wing and the second wing respectively pivot at a first angle relative to the main body about the first inner virtual axis and the second inner virtual axis, and the first panel body and the second panel body rotate at a second angle relative to the main body, and the first angle is greater than the second angle.

In one embodiment of the present invention, the first supporting member further includes a first extension plate and a first sliding column, the first transmission member further includes a first accommodating groove extending substantially perpendicular to the first axis, the first extension plate and the first sliding column extend along the first axis and are slidably disposed in the first accommodating groove, the second supporting member further includes a second extension plate and a second sliding column, the second transmission member further includes a second accommodating groove extending substantially perpendicular to the second axis, the second extension plate and the second sliding column extend along the second axis and are slidably disposed in the second accommodating groove.

In one embodiment of the present invention, the connection module further includes a fixing member, and a first ear and a second ear extending laterally from the fixing member. The first ear penetrates along the first axis to form a first axial hole for the first shaft to pass through, and the second ear penetrates along the second axis to form a second axial hole for the second shaft to pass through.

In one embodiment of the present invention, the push member further includes a first driven cam and a second driven cam, which are respectively sleeved on the first shaft and the second shaft, and the elastic module further includes a first elastic member and a second elastic member, which are respectively sleeved on the first shaft and the second shaft, and the two ends of the first elastic member respectively abut against the first ear and the first driven cam, and the two ends of the second elastic member respectively abut against the second ear and the second driven cam.

In one embodiment of the present invention, the first transmission member further includes a first active cam, the first active cam is slidably mounted on the first shaft along the first axis and rotates synchronously with the first shaft, the second transmission member further includes a second active cam, the second active cam is slidably mounted on the second shaft along the second axis and rotates synchronously with the second shaft, the first active cam and the second active cam are respectively coupled to the first driven cam. and the second driven cam. When the first supporting member and the second supporting member are in a half-open state between the unfolded state and the folded state, the first active cam and the second active cam abut against the first driven cam and the second driven cam, thereby compressing the first elastic member and the second elastic member. When the first supporting member and the second supporting member are in the unfolded state or the folded state, the first elastic member and the second elastic member are released correspondingly.

In one embodiment of the present invention, the lifting plate further includes a locking piece, a nut and a screw hole. The nut is disposed in the central base. The central base further has a stopper. The locking piece passes through the screw hole and is screwed to the nut. When the lifting plate rises to the highest position relative to the central base, the nut interferes with the stopper.

In one embodiment of the present invention, the first elastic member and the second elastic member are respectively a compression spring.

In one embodiment of the present invention, the first supporting plate and the second supporting plate respectively have at least one first protrusion and at least one second protrusion, and the lifting plate further includes at least one first groove and at least one second groove, the first groove corresponds to the first protrusion and the second groove corresponds to the second protrusion, when the first panel body and the second panel body are transformed from the unfolded state to the folded state, the first protrusion and the second protrusion respectively press the lifting plate at the first groove and the second groove, so that the lifting plate is located at the lowest position.

In one embodiment of the present invention, the first supporting plate has at least one first supporting portion, and the second supporting plate has at least one second supporting portion. When the first supporting member and the second supporting member are in the unfolded state, the first supporting portion, the second supporting portion, the first wing member and the second wing member jointly lift the lifting plate to the highest position.

In one embodiment of the present invention, the engaging synchronization module further includes at least one magnet, which is disposed on the synchronization support block and constantly provides a magnetic attraction force to the lifting plate, so that the lifting plate tends to settle toward the lowest position.

In one embodiment of the present invention, the first axis, the first outer virtual axis, the first inner virtual axis, the second axis, the second outer virtual axis and the second inner virtual axis are parallel to each other and do not overlap.

After referring to the drawings and the implementation methods described subsequently, a person having ordinary knowledge in this technical field will understand other purposes of the present invention, as well as the technical means and implementation aspects of the present invention.

The content of the present invention will be explained below through embodiments. The embodiments of the present invention are not intended to limit the present invention to any specific environment, application or special method as described in the embodiments. Therefore, the description of the embodiments is only for the purpose of explaining the present invention, and is not intended to limit the present invention. It should be noted that in the following embodiments and drawings, components that are not directly related to the present invention have been omitted and not shown, and the size relationship between the components in the drawings is only for easy understanding and is not intended to limit the actual proportion.

First, please refer to Figures 1 to 4, Figure 1 is a schematic diagram of an embodiment of the foldable electronic device 1000 of the present invention in an unfolded state, Figure 2 is a partial exploded view of an embodiment of the foldable electronic device 1000 of the present invention, and Figures 3 and 4 are partial schematic diagrams of an embodiment of the foldable electronic device 1000 of the present invention in an unfolded state and a folded state, respectively. The foldable electronic device 1000 includes a central base 1, a connection module 2, a first wing 3, a first transmission member 4, a first panel body 5, a second wing 6, a second transmission member 7, a second panel body 8, a locking synchronization module 9, an elastic module E, a flexible screen 2000 and a housing 3000, wherein the flexible screen 2000 is disposed on the first panel body 5 and the second panel body 8, and the flexible screen 2000 includes a bendable area 2001.

Please refer to FIGS. 5 to 7 , the central base 1 includes a main body 11, a lifting plate 12, two first inner arc-shaped sliders 13, two second inner arc-shaped sliders 14 and a stopper 15. The main body 11 is disposed in the outer shell 3000, the first inner arc-shaped sliders 13 are formed at intervals on the same side of the main body 11, and the second inner arc-shaped sliders 14 are formed at intervals on the other side of the main body 11. The lifting plate 12 can be movably disposed on the main body 11 and can be relatively switched between a highest position (see FIG. 5 ) and a lowest position (see FIG. 6 ). In addition, the stopper 15 is formed on the main body 11.

The lifting plate 12 further comprises a locking member 121, a nut 122, a screw hole 123, two first grooves 124, and two second grooves 125. The nut 122 is disposed in the central base 1. The locking member 121 is inserted into the screw hole 123 and is screwed to the nut 122. The first grooves 124 are symmetrically formed on the same side of the lifting plate 12, and the second grooves 125 are symmetrically formed on the other side of the lifting plate 12. When the lifting plate 12 rises to the highest position relative to the body 11, the nut 122 and the stopper 15 interfere with each other, so that the lifting plate 12 can be restricted and maintained at the highest position. Conversely, when the lifting plate 12 falls to the lowest position relative to the body 11, the nut 122 and the stopper 15 do not interfere with each other.

In this embodiment, the connection module 2 is disposed on the central base 1. As shown in FIG9 , the connection module 2 includes a first shaft 21, a second shaft 22, a fixing member 23, a first ear 24, and a second ear 25. The first shaft 21 and the second shaft 22 are respectively passed through the main body 11. The first shaft 21 extends along a first axis L1 and has a first main gear 211. The second shaft 22 extends along a second axis L2 and has a second main gear 221. One end of the first shaft 21 and the second shaft 22 are disposed on the engagement synchronization module 9, so that the first main gear 211 and the second main gear 221 are respectively adjacent to the engagement synchronization module 9. The first ear 24 and the second ear 25 extend from the fixing member 23 to each other. The first ear 24 passes through along the first axis L1 to form a first axial hole 241 for the first shaft 21 to pass through. The second ear 25 passes through along the second axis L2 to form a second axial hole 251 for the second shaft 22 to pass through. In addition, the fixing member 23 includes two connecting nuts 231 and two washers 232. The connecting nuts 231 and the washers 232 are assembled with each other and are respectively sleeved on the first shaft 21 and the second shaft 22 to lock the first shaft 21 and the second shaft 22 to the fixing base 23.

The following will first describe the details of the pivot structure on one side. Please refer to FIG8 , the first wing member 3 includes a first block 30, a first support plate 31, two first inner arc grooves 32 and two first outer arc grooves 33. The first support plate 31 is fixed to the first block 30 and can be movably arranged on one side of the lifting plate 12. The first inner arc grooves 32 and the first outer arc grooves 33 are formed in groups on both sides of the first block 30, respectively. The first inner arc slide block 13 of the central seat 1 is slidably arranged in the first inner arc groove 32, so that the first wing member 3 can pivot relative to the main body 11 with a first inner virtual axis X1 as the center. In addition, the first support plate 31 has two first protrusions 311 and two first abutment portions 312. The first protrusions 311 and the first abutment portions 312 are formed at intervals on the same side of the first support plate 31 (i.e., the side adjacent to the lifting plate 12). The first groove 124 of the lifting plate 12 corresponds to the first protrusions 311, so that they can operate mutually when switching between the unfolded state and the folded state. In this embodiment, considering the effect of supporting stability, the first protrusions 311 and the first abutment portions 312 are illustrated as two, and their number can be adjusted according to actual needs and is not limited here.

The first transmission member 4 further includes a first active cam 41 and a first receiving groove 42. The first active cam 41 is a hollow end cam, which can be slidably mounted on the first shaft 21 along the first axis L1 and rotate synchronously with the first shaft 21. The first receiving groove 42 is substantially perpendicular to the first axis L1 and extends inside the first transmission member 4.

Please refer to Figures 2, 10 and 15 together. The first panel body 5 includes a first supporting member 51 and two first outer arc sliders 52. The first supporting member 51 can slide linearly relative to the first transmission member 4. The first outer arc slider 52 is slidably disposed in the first outer arc groove 33 of the first wing member 3, so that the first supporting member 51 can pivot relative to the first wing member 3 about a first outer virtual axis X2. Specifically, the first supporting member 51 further includes a first extension plate 511 and a first sliding column 512. The first extension plate 511 and the first sliding column 512 extend along the first axis L1 and are slidably disposed in the first accommodating groove 42 of the first transmission member 4. The first extension plate 511 and the first sliding column 512 can slide back and forth in the first accommodating groove 42. In other words, when the first panel body 5 is in an unfolded state, the first extension plate 511 and the first sliding column 512 are farthest from the central base body 1 relative to the first transmission member 4 (see Figure 12). When the first panel body 5 is in a folded state, the first extension plate 511 and the first sliding column 512 are closest to the central base body 1 relative to the first transmission member 4 (see Figure 13).

The following will first describe the details of the pivot structure on the other side. Please refer to Figures 4 and 8 together. The second wing member 6 includes a second block 60, a second support plate 61, two second inner arc grooves 62 and two second outer arc grooves 63. The second support plate 61 is fixed to the second block 60 and can be movably arranged on the other side opposite to the lifting plate 12. The second inner arc grooves 62 and the second outer arc grooves 63 are formed in groups on both sides of the second block 60, respectively. The second inner arc slide block 14 of the central base 1 is slidably arranged in the second inner arc groove 62, so that the second wing member 6 can pivot relative to the main body 11 with a second inner virtual axis Y1 as the center. In addition, the second supporting plate 61 has two second protrusions 611 and two second abutting portions 612. The second protrusions 611 and the second abutting portions 612 are formed at intervals on the same side of the second supporting plate 61 (i.e., the side adjacent to the lifting plate 12). The second groove 125 of the lifting plate 12 corresponds to the second protrusions 611, so that they can operate mutually when switching between the unfolded state and the folded state. In this embodiment, considering the effect of supporting stability, the second protrusions 611 and the second abutting portions 612 are illustrated as two, and their number can be adjusted according to actual needs and is not limited here.

In this embodiment, the second transmission member 7 further includes a second active cam 71 and a second receiving groove 72. The second active cam 71 is a hollow end cam, which can be slidably mounted on the second shaft 22 along the second axis L2 and rotate synchronously with the second shaft 22. The second receiving groove 72 is substantially perpendicular to the second axis L2 and extends inside the second transmission member 7.

As shown in Figures 2, 10 and 15, in this embodiment, the second panel body 8 includes a second supporting member 81 and two second outer arc sliders 82. The second supporting member 81 can slide linearly relative to the second transmission member 7. The second outer arc slider 82 is slidably disposed in the second outer arc groove 63 of the second wing member 6, so that the second supporting member 81 can pivot relative to the second wing member 6 about a second outer virtual axis Y2. Specifically, the second supporting member 81 further includes a second extension plate 811 and a second sliding column 812. The second extension plate 811 and the second sliding column 812 extend along the second axis L2 and are slidably disposed in the second accommodating groove 72 of the second transmission member 7. The second extension plate 811 and the second sliding column 812 can slide back and forth in the second accommodating groove 72. In other words, when the second panel body 8 is in an unfolded state, the second extension plate 811 and the second sliding column 812 are farthest from the central base body 1 relative to the second transmission member 7 (see Figure 12). When the second panel body 8 is in a folded state, the second extension plate 811 and the second sliding column 812 are closest to the central base body 1 relative to the second transmission member 7 (see Figure 13).

The following describes the transformation of the first panel body 5 and the second panel body 8 between the unfolded state and the folded state. When the first panel body 5 and the second panel body 8 are in the unfolded state, the flexible screen 2000 is flat, the lifting plate 12 is at the highest position, and the first support plate 31, the second support plate 61 and the lifting plate 12 jointly support the bendable area 2001. When the first panel body 5 and the second panel body 8 are in the folded state, the flexible screen 2000 can be folded, the lifting plate 12 is at the lowest position, and the first support plate 31, the second support plate 61 and the lifting plate 12 jointly define a storage space.

Specifically, when the first panel body 5 and the second panel body 8 are in the unfolded state, the first wing member 3, the second wing member 6, the first abutting portion 312 and the second abutting portion 612 jointly lift the lifting plate 12 to the highest position, so that the lifting plate 12 is far away from the main body 11. At this time, the first supporting plate 31 and the second supporting plate 61 are substantially coplanar with the lifting plate 12 and jointly support the bendable area 2001. On the contrary, when the first panel body 5 and the second panel body 8 are in the unfolded state, When converted to the folded state, the first protrusion 311 of the first wing 3 and the second protrusion 611 of the second wing 6 are respectively in the first groove 124 and the second groove 125, pressing the lifting plate 12 downward. When the lifting plate 12 is at the lowest position, the first panel body 5 and the second panel body 8 are substantially parallel to each other, and the first supporting plate 31 and the second supporting plate 61 are not parallel to the lifting plate 12, and the accommodating space is used to accommodate the bendable area 2001.

In this embodiment, the first wing 3 and the second wing 6 can be further provided with stop points on the first outer arc groove 33 and the second outer arc groove 63 respectively. When the first panel body 5 and the second panel body 8 are in a folded state, the stop points will interfere with the outer shell 3000, thereby preventing the arc slider from derailing when sliding in the arc groove and producing a stop limit effect.

In another embodiment of the present invention, compared with the combination of the first supporting member 51 slidingly arranged on the first transmission member 4, and the second supporting member 81 slidingly arranged on the second transmission member 7, they can be arranged opposite to each other, as shown in Figure 11, the first supporting member 51 can include a receiving groove structure, the first transmission member 4 can include an extension plate structure, and the extension plate structure is slidably arranged in the receiving groove structure, the second supporting member 81 can include a receiving groove structure, and the second transmission member 7 can include an extension plate structure, and the extension plate structure is slidably arranged in the receiving groove structure, which can also achieve the effect of sliding against each other when pivoting.

In addition, the engaging synchronous module 9 includes a synchronous support block 91, a first auxiliary gear 92, a second auxiliary gear 93, and four magnets 94. The two ends of the synchronous support block 91 are respectively sleeved on the first shaft 21 and the second shaft 22. The first auxiliary gear 92 and the second auxiliary gear 93 are arranged on the synchronous support block 91 so as to be rotatable in opposite directions, and the first auxiliary gear 92 and the second auxiliary gear 93 are engaged with each other. The first auxiliary gear 92 and the first main gear 211 can be engaged with each other in reverse rotation, and the second auxiliary gear 93 and the second main gear 221 can be engaged with each other in reverse rotation, so that the first transmission member 4 and the second transmission member 7 can rotate synchronously in reverse rotation. In addition, the magnet 94 is disposed in the synchronous support block 91. When the first panel body 5 and the second panel body 8 are transformed from the unfolded state to the folded state, the first protrusion 311 and the second protrusion 611 can be used to press down the first groove 124 and the second groove 125 to make the lifting plate 12 sink to the lowest position. At the same time, the magnet 94 can provide a magnetic attraction to the lifting plate 12, so that the lifting plate 12 is more inclined to sink to the lowest position and adhere to the body 11, forming a accommodating space for the bendable area 2001 of the flexible screen 2000. In this embodiment, considering the magnetic attraction required for the lifting plate 12 to sink to the lowest position, the aforementioned magnets 94 are illustrated as four. The number and placement of the magnets can be adjusted according to actual needs and are not limited here.

In this embodiment, the elastic module E includes a push member E1, a first elastic member E2, and a second elastic member E3. The push member E1 can be slidably mounted on the first shaft 21 and the second shaft 22, and can be movably engaged with the first transmission member 4 and the second transmission member 7. The push member E1 further includes a first driven cam E11 and a second driven cam E12. The first driven cam E11 and the second driven cam E12 are both hollow end cams, which can be mounted on the first shaft 21 and the second shaft 22 respectively. On the other hand, the first elastic member E2 is sleeved on the first shaft 21, and the second elastic member E3 is sleeved on the second shaft 22. The two ends of the first elastic member E2 respectively abut against the first ear 24 and the first driven cam E11, and the two ends of the second elastic member E3 respectively abut against the second ear 25 and the second driven cam E12.

The following is a detailed description of the operation of the elastic module E. Please refer to Figures 14 and 15 together. The first active cam 41 of the first transmission member 4 and the second active cam 71 of the second transmission member 7 cooperate with the first driven cam E11 and the second driven cam E12 respectively. When the first carrier 51 and the second carrier 81 are in a half-open state between the unfolded state and the folded state, the first transmission member 4 and the second transmission member 7 are rotated to drive the first carrier 51, the second carrier 81, the first wing 3 and the second wing 6 to pivot. The first active cam 41 of the first transmission member 4 and the second active cam 71 of the second transmission member 7 abut against the first driven cam E11 and the second driven cam E12. The degree of compression of the first driving cam E11 and the second driven cam E12 will increase (i.e., the total length of the first driving cam 41 and the first driven cam E11 on the first axis L1 increases, and the total length of the second driving cam 71 and the second driven cam E12 on the second axis L2 increases), thereby compressing the first elastic member E2 and the second elastic member E3. At this time, the degree of compression of the first elastic member E2 and the second elastic member E3 will increase. In other words, when the first supporting member 51 and the second supporting member 81 are in the unfolded state or the folded state, the first elastic member E2 and the second elastic member E3 are released accordingly. In this embodiment, the first elastic member E2 and the second elastic member E3 are respectively pre-stressed compression springs, which constantly provide an elastic force between the fixing member 23 and the first driven cam E11 and the second driven cam E12. Other types of springs may be used instead in other embodiments of the present invention, which is not limited here.

In this embodiment, the first axis L1, the first outer virtual axis X2, the first inner virtual axis X1, the second axis L2, the second outer virtual axis Y2 and the second inner virtual axis Y1 are parallel to each other and do not overlap.

The following is a detailed description of the actuation relationship of the foldable electronic device 1000 in the unfolded state and the folded state. When the first panel body 5 and the second panel body 8 are transformed from the unfolded state to the folded state, the first inner arc groove 32 of the first wing 3 and the second inner arc groove 62 of the second wing 6 rotate with the first inner arc slide block 13 and the second inner arc slide block 14 of the central base 1, which can drive the first outer arc groove 33 of the first wing 3 and the second outer arc groove 63 of the second wing 6 and the first outer arc groove 33 of the first panel body 5 to rotate. The arc-shaped slider 52 and the second outer arc-shaped slider 82 of the second panel body 8 rotate, and then drive the first extension portion 511 and the first sliding column 512 of the first supporting member 51 and the second extension portion 811 and the second sliding column 812 of the second supporting member 81 to slide in the first accommodating groove 42 of the first transmission member 4 and the second accommodating groove 72 of the second transmission member 7 respectively, and finally drive the first transmission member 4 and the second transmission member 7 to pivot in the opposite direction relative to the main body 11. Specifically, the first wing 3 and the second wing 6 are respectively pivoted at a first angle θ1 with respect to the main body 11 about the first inner virtual axis X1 and the second inner virtual axis Y1, so that the movable screen 2000 is bent into a water drop-shaped curved surface, and the first supporting plate 31 and the second supporting plate 61 are not parallel to each other (gradually approaching each other in the direction away from the lifting plate 12). In other words, the first supporting plate 31 and the second supporting plate 61 rotate at a first angle θ1 relative to the main body 11, and the first panel body 5 and the second panel body 8 respectively form a second angle θ2 with the main body 11. Similarly, the first transmission member 4 and the second transmission member 7 also rotate at a second angle θ2 relative to the first shaft 21 and the second shaft 22. The first angle θ1 is greater than the second angle θ2. According to the structural stability and the smoothness of the rotation, the first angle θ1 is preferably greater than 90 degrees, and the second angle θ2 is preferably 90 degrees.

In practice, another set of central base 1, connection module 2, first wing 3, first transmission member 4, second wing 6, second transmission member 7, engagement synchronization module 9 and elastic module E can be set in the bendable area 2001 corresponding to the flexible screen 2000, so as to jointly produce the aforementioned functions. Because their operating methods are the same, they will not be repeated here.

In summary, the foldable electronic device of the present invention is connected by a flexible screen with a plurality of four-link structures including wings, a carrier, a transmission member and a central base, and a magnet is used to provide a downward magnetic attraction force for the lifting plate, wherein the first wing and the second wing have a design of two arc-shaped grooves, which can allow the arc-shaped slider to pivot and drive the first panel body and the second panel body to switch between the unfolded and folded states, and the lifting plate is adsorbed by the magnet, thereby improving the smoothness of the user's operation of the foldable electronic device.

The above embodiments are only used to illustrate the implementation of the present invention and to explain the technical features of the present invention, and are not used to limit the scope of protection of the present invention. Any changes or equivalent arrangements that can be easily completed by those familiar with this technology are within the scope of the present invention, and the scope of protection of the present invention shall be based on the scope of the patent application.

1000: Folding electronic device 2000: Foldable screen 3000: Housing 1: Central base 11: Main body 12: Lifting plate 121: Locking fixture 122: Nut 123: Screw hole 124: First groove 125: Second groove 13: First inner arc slider 14: Second inner arc slider 15: Stopper 2: Connecting module 21: First shaft 211: First main gear 22: Second shaft 221: Second main gear 23: Fixing element 231: Connecting nut 232: Gasket 24: First ear 241: First shaft hole 25: Second ear 251: Second shaft hole 3: First wing 30: First block 31: First support plate 311: First protrusion 312: First abutment 32: First inner arc groove 33: First outer arc groove 4: First transmission member 41: First active cam 42: First receiving groove 5: First panel body 51: First bearing member 511: First extension plate 512: First sliding column 52: First outer arc slide 6: Second wing 60: Second block 61: Second support plate 611: Second protrusion 612: Second abutment 62: Second inner arc groove 63: Second outer arc groove 7: Second transmission member 71: Second active cam 72: Second receiving groove 8: Second panel body 81: Second bearing member 811: Second extension plate 811: Second sliding column 82: Second outer arc-shaped slider 9: Engagement synchronization module 91: Synchronous support block 92: First auxiliary gear 93: Second auxiliary gear 94: Magnet E: Elastic module E1: Pushing member E11: First driven cam E12: Second driven cam E2: First elastic member E3: Second elastic member 2001: Bendable area L1: First axis L2: Second axis X1: First inner virtual axis X2: First outer virtual axis Y1: Second inner virtual axis Y2: Second outer virtual axis θ1: First angle θ2: Second angle

Figure 1 is a schematic diagram of the foldable electronic device of the present invention in the unfolded state; Figure 2 is a partial exploded view of the foldable electronic device of the present invention; Figure 3 is a partial schematic diagram of the foldable electronic device of the present invention in the unfolded state; Figure 4 is a partial schematic diagram of the foldable electronic device of the present invention in the folded state; Figure 5 is a partial cross-sectional view of the foldable electronic device of the present invention in the unfolded state; Figure 6 is a partial cross-sectional view of the foldable electronic device of the present invention in the folded state; Figure 7 is an exploded view of the central base, the first support plate and the second support plate of the present invention; Figure 8 is a schematic diagram of the first wing and the second wing of the present invention; Figure 9 is an exploded view of the connection module, the engagement synchronization module and the elastic module of the present invention; FIG10 is a schematic diagram of the first transmission member, the first carrier, the second transmission member and the second carrier of the present invention; FIG11 is a schematic diagram of the first transmission member, the first carrier, the second transmission member and the second carrier of another embodiment of the present invention; FIG12 is a partial cross-sectional diagram of the foldable electronic device of the present invention in the unfolded state; FIG13 is a partial cross-sectional diagram of the foldable electronic device of the present invention in the folded state; FIG14 is a partial schematic diagram of the actuation mode of the foldable electronic device of the present invention; and FIG15 is a partial schematic diagram of the actuation mode of the foldable electronic device of the present invention.

1000: Foldable electronic devices

3000: Shell

1: Central seat

11: Main body

12: Lifting plate

121: Lock firmware

122: Nut

123: screw hole

2: Connection module

21: First shaft

211: First main gear

22: Second axis

221: Second main gear

23:Fixers

3: First wing piece

31: The first support board

4: First transmission part

51: First carrier

6: Second wing piece

61: Second support board

7: Second transmission member

81: Second carrier

9: Combined synchronization module

91: Synchronous support block

92: First auxiliary gear

93: Second auxiliary gear

94: Magnet

E: Elastic module

E1: Pushing piece

E2: First elastic part

E3: Second elastic part

L1: First axis

L2: Second axis

Claims (13)

A foldable electronic device comprises: A central base, comprising a main body, a lifting plate, at least one first inner arc-shaped slider and at least one second inner arc-shaped slider, wherein the first inner arc-shaped slider and the second inner arc-shaped slider are formed on the main body at intervals, respectively, and the lifting plate can be movably arranged on the main body and can be relatively switched between a highest position and a lowest position; A connection module, arranged on the central base, and comprising a first shaft and a second shaft respectively passing through the main body, wherein the first shaft extends along a first axis and has a first main gear, and the second shaft extends along a second axis and has a second main gear; A first wing member, comprising a first support plate, at least one first inner arc groove and at least one first outer arc groove, the first support plate can be movably arranged on one side of the lifting plate, the first inner arc slide block is slidably arranged in the first inner arc groove, whereby the first wing member can pivot relative to the main body with a first inner virtual axis as the center; A first transmission member, sleeved on the first shaft rod, and rotated synchronously with the first shaft rod; A first panel body, comprising a first bearing member, the first bearing member can present linear sliding relative to the first transmission member, and comprises at least one first outer arc slide block, the first outer arc slide block is slidably arranged in the first outer arc groove, whereby the first bearing member can pivot relative to the first wing member with a first outer virtual axis; A second wing member, comprising a second support plate, at least one second inner arc groove and at least one second outer arc groove, the second support plate can be movably arranged on the other side opposite to the lifting plate, the second inner arc slide block is slidably arranged in the second inner arc groove, whereby the second wing member can pivot relative to the main body with a second inner virtual axis as the center; A second transmission member, sleeved on the second shaft, and rotated synchronously with the second shaft; A second panel body, comprising a second bearing member, the second bearing member can slide linearly relative to the second transmission member, and comprises at least one second outer arc-shaped slider, the second outer arc-shaped slider is slidably disposed in the second outer arc-shaped groove, whereby the second bearing member can pivot relative to the second wing member with a second outer virtual axis; A meshing synchronous module, comprising a synchronous support block, a first auxiliary gear and a second auxiliary gear, the two ends of the synchronous support block are respectively sleeved on the first shaft and the second shaft, the first auxiliary gear and the second auxiliary gear are arranged on the synchronous support block in a reverse rotation and mesh with each other, the first auxiliary gear and the first main gear can be meshed in a reverse rotation, and the second auxiliary gear and the second main gear can be meshed in a reverse rotation, so that the first transmission member and the second transmission member can rotate synchronously in the reverse direction; An elastic module, including a push member, which is slidably mounted on the first shaft and the second shaft, and is movably engaged with the first transmission member and the second transmission member; and A flexible screen, which is disposed on the first panel body and the second panel body, and includes a bendable area; The first panel body and the second panel body can be switched between an unfolded state and a folded state. When the first panel body and the second panel body are in the unfolded state, the flexible screen is flattened, the lifting plate is at the highest position, and the first supporting plate, the second supporting plate and the lifting plate jointly support the bendable area. When the first panel body and the second panel body are in the folded state, the flexible screen is folded, the lifting plate is at the lowest position, and the first supporting plate, the second supporting plate and the lifting plate jointly define a accommodating space to accommodate the bendable area. A foldable electronic device as described in claim 1, wherein, when the first panel body and the second panel body are in the unfolded state relative to each other, the first supporting plate and the second supporting plate are substantially coplanar with the lifting plate; when the first panel body and the second panel body are in the folded state relative to each other, the first panel body and the second panel body are substantially parallel with an interval, and the first supporting plate and the second supporting plate are not parallel to the lifting plate to jointly define the accommodating space. A foldable electronic device as described in claim 2, wherein, when the first panel body and the second panel body are transformed from the unfolded state to the folded state, the first wing and the second wing respectively pivot at a first angle relative to the main body about the first inner virtual axis and the second inner virtual axis, and the first panel body and the second panel body rotate at a second angle relative to the main body, and the first angle is greater than the second angle. A foldable electronic device as described in claim 3, wherein the first supporting member further includes a first extension plate and a first sliding column, the first transmission member further includes a first receiving groove extending substantially perpendicular to the first axis, the first extension plate and the first sliding column extend along the first axis and are slidably disposed in the first receiving groove, the second supporting member further includes a second extension plate and a second sliding column, the second transmission member further includes a second receiving groove extending substantially perpendicular to the second axis, the second extension plate and the second sliding column extend along the second axis and are slidably disposed in the second receiving groove. A foldable electronic device as described in claim 4, wherein the connection module further includes a fixing member, and a first ear and a second ear extending laterally from the fixing member, wherein the first ear penetrates along the first axis to form a first axial hole for the first shaft to pass through, and the second ear penetrates along the second axis to form a second axial hole for the second shaft to pass through. A foldable electronic device as described in claim 5, wherein the push member further includes a first driven cam and a second driven cam, which are respectively mounted on the first shaft and the second shaft, and the elastic module further includes a first elastic member and a second elastic member, which are respectively mounted on the first shaft and the second shaft, and the two ends of the first elastic member respectively abut against the first ear and the first driven cam, and the two ends of the second elastic member respectively abut against the second ear and the second driven cam. The foldable electronic device as described in claim 6, wherein the first transmission member further comprises a first active cam, the first active cam is slidably mounted on the first shaft along the first axis and rotates synchronously with the first shaft, and the second transmission member further comprises a second active cam, the second active cam is slidably mounted on the second shaft along the second axis and rotates synchronously with the second shaft, the first active cam and the second active cam are respectively connected to the first shaft. The driven cam and the second driven cam cooperate with each other. When the first supporting member and the second supporting member are in a half-open state between the unfolded state and the folded state, the first active cam and the second active cam abut against the first driven cam and the second driven cam, thereby compressing the first elastic member and the second elastic member. When the first supporting member and the second supporting member are in the unfolded state or the folded state, the first elastic member and the second elastic member are released correspondingly. A foldable electronic device as described in claim 7, wherein the lifting plate further includes a locking piece, a nut and a screw hole, the nut is disposed in the central base, the central base further has a stop portion, the locking piece is passed through the screw hole and is screwed to the nut, and when the lifting plate rises to the highest position relative to the central base, the nut interferes with the stop portion. A foldable electronic device as described in claim 8, wherein the first elastic member and the second elastic member are respectively a compression spring. A foldable electronic device as described in any one of claims 1 to 9, wherein the first supporting plate and the second supporting plate respectively have at least one first protrusion and at least one second protrusion, and the lifting plate further includes at least one first groove and at least one second groove, the first groove corresponds to the first protrusion and the second groove corresponds to the second protrusion, when the first panel body and the second panel body are transformed from the unfolded state to the folded state, the first protrusion and the second protrusion respectively press the lifting plate in the first groove and the second groove, so that the lifting plate is located at the lowest position. A foldable electronic device as described in claim 10, wherein the first supporting plate has at least one first supporting portion, and the second supporting plate has at least one second supporting portion, and when the first supporting member and the second supporting member are in the unfolded state, the first supporting portion, the second supporting portion, the first wing and the second wing jointly lift the lifting plate to the highest position. A foldable electronic device as described in claim 11, wherein the engaging synchronization module further comprises at least one magnet, which is disposed on the synchronization support block and constantly provides a magnetic attraction force to the lifting plate so that the lifting plate tends to sink toward the lowest position. A foldable electronic device as described in claim 12, wherein the first axis, the first outer virtual axis, the first inner virtual axis, the second axis, the second outer virtual axis and the second inner virtual axis are parallel to each other and do not overlap.

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