TW202227923A - Dual-shaft hinge module and foldable electronic device - Google Patents

Abstract

A dual-shaft hinge module including a first rotating shaft with a first cam structure and a second cam structure, a second rotating shaft with a third cam structure and a fourth cam structure, a housing with a fifth cam structure and a sixth cam structure, a first switching member, and a second switching member is provided. The first and the second rotating shafts are parallel to each other and penetrate the housing. The first and the second switching members are movable disposed in the housing and located between the first rotating shaft and the second rotating shaft. The first and the second rotating shafts are rotated relatively in sequence. A foldable electronic device is also provided.

Description

Dual hinge module and foldable electronic device

The present invention relates to a dual-shaft module and a foldable electronic device.

With the rapid advancement of technology, portable electronic devices with foldable bodies, such as notebook computers, have become quite common. Users can process and send and receive data anytime and anywhere through these portable electronic devices, which have become an indispensable and important item in modern people's life.

Taking a notebook computer as an example, a hinge module is used to achieve a relative pivoting effect between the two bodies. In order to improve the rotation degree of the body, it can be known from many existing products that the body is connected with double rotating shafts so that the turning effect of 0 degrees to 360 degrees can be achieved. However, in the process of the relative rotation of the body, limited by the action and switching sequence of the hinge module, the body will still be in a non-flat state when unfolded. In other words, the rotating shaft module in the flattened state still has a step, so that the two bodies are not located on the same plane, which causes trouble to the user in use.

The present invention provides a dual-shaft module and a foldable electronic device, which can make the flattened bodies located on the same plane during the rotation process.

The dual-shaft module of the present invention includes a first shaft, a second shaft, a casing, a first switching member and a second switching member. The first rotating shaft has a first cam structure and a second cam structure facing away from each other along its axial direction, and the second rotating shaft has a third cam structure and a fourth cam structure facing away from each other along its axial direction. The casing has a fifth cam structure and a sixth cam structure, and the first rotating shaft and the second rotating shaft pass through the casing in parallel with each other. The first switching member and the second switching member are respectively movably disposed on the housing and located between the first rotating shaft and the second rotating shaft. The moving paths of the first switching member respectively intersect with the moving paths of the first cam structure and the third cam structure, the moving paths of the second switching member respectively intersect the moving paths of the second cam structure and the fourth cam structure, and the fifth cam structure The sixth cam structure is located on the moving path of the second cam structure, and the sixth cam structure is located on the moving path of the fourth cam structure, so that the first rotating shaft and the second rotating shaft rotate in sequence.

The foldable electronic device of the present invention includes a first body, a second body, and a double-shaft module, wherein the double-shaft module connects the first body and the second body, so that the first body and the second body are connected by the double-shaft mold group while rotating relative to each other to open and close. The dual-shaft module includes a first shaft, a second shaft, a casing, a first switch piece and a second switch piece. The first rotating shaft has a first cam structure and a second cam structure facing away from each other along its axial direction, and the second rotating shaft has a third cam structure and a fourth cam structure facing away from each other along its axial direction. The casing has a fifth cam structure and a sixth cam structure, and the first rotating shaft and the second rotating shaft pass through the casing in parallel with each other. The first switching member and the second switching member are respectively movably disposed on the housing and located between the first rotating shaft and the second rotating shaft. The moving paths of the first switching member respectively intersect with the moving paths of the first cam structure and the third cam structure, the moving paths of the second switching member respectively intersect the moving paths of the second cam structure and the fourth cam structure, and the fifth cam structure is located on the moving path of the second cam structure, and the sixth cam structure is located on the moving path of the fourth cam structure, so that the first rotating shaft and the second rotating shaft are rotated in sequence, and during the sequence of rotation, the A body and the second body are in a state of being spread out and lying on the same plane.

In an embodiment of the present invention, in the first state, the first switching member blocks the rotation of the third cam structure in the first direction, the fifth cam structure blocks the rotation of the second cam structure in the first direction, and the sixth cam structure The fourth cam structure is blocked from rotating along the second direction, so that the dual-shaft module only has a rotation allowance for the first shaft and only has a rotation allowance along the second direction, and the first direction is opposite to the second direction.

In an embodiment of the present invention, one end of the first switching member abuts against the first cam structure, so that the other end of the first switching member blocks the rotation of the third cam structure in the first direction.

In an embodiment of the present invention, in the second state, the sixth cam structure blocks the rotation of the fourth cam structure in the second direction, and the second switching member blocks the rotation of the second cam structure in the second direction, so that the In the dual-shaft module, the second shaft has a rotation margin only along the first direction, and the first shaft has a rotation allowance only along the first direction, and the first direction is opposite to the second direction.

In an embodiment of the present invention, one end of the second switching member abuts against the fourth cam structure, so that the other end of the second switching member blocks the rotation of the second cam structure in the second direction.

In an embodiment of the present invention, the first cam structure is moved away from one end of the first switching member, and the other end of the first switching member is located on the moving path of the third cam structure along the first direction, so that when the third cam structure is moved When the cam structure rotates in the first direction, the third cam structure drives the first switching member to move toward the first rotating shaft.

In an embodiment of the present invention, in the third state, the first switching member blocks the rotation of the first cam structure in the first direction, and the second switching member blocks the rotation of the second cam structure in the second direction, so that the In the dual-shaft module, only the second shaft has a rotation margin, and has a rotation margin along a first direction and a second direction, and the first direction is opposite to the second direction.

In an embodiment of the present invention, one end of the first switching member abuts against the third cam structure, so that the other end of the first switching member blocks the rotation of the first cam structure in the first direction.

In an embodiment of the present invention, one end of the second switching member abuts against the fourth cam structure, so that the other end of the second switching member blocks the rotation of the second cam structure in the second direction.

In an embodiment of the present invention, in the fourth state, the sixth cam structure blocks the rotation of the fourth cam structure in the first direction, and the first switching member blocks the rotation of the first cam structure in the first direction, so that the In the dual-shaft module, the second shaft has a rotation allowance only along the second direction, and the first shaft has a rotation allowance only along the second direction, and the first direction is opposite to the second direction.

In an embodiment of the present invention, one end of the first switching member abuts against the third cam structure, so that the other end of the first switching member blocks the rotation of the first cam structure in the first direction.

In an embodiment of the present invention, the above-mentioned fourth cam structure is moved away from one end of the second switching member, and the other end of the second switching member is located on the moving path of the second cam structure, so that when the second cam structure moves along the first When rotating in two directions, the second cam structure drives the second switching member to move toward the second rotating shaft.

In an embodiment of the present invention, in the fifth state, the fifth cam structure blocks the rotation of the second cam structure in the second direction, the second switching member blocks the rotation of the fourth cam structure in the second direction, and the sixth cam structure The fourth cam structure is blocked from rotating along the first direction, so that in the dual-shaft module, only the first shaft has a rotational margin, and only has a rotational allowance along the first direction, and the first direction is opposite to the second direction .

In an embodiment of the present invention, one end of the second switching member abuts against the second cam structure, so that the other end of the second switching member blocks the rotation of the fourth cam structure in the second direction.

In an embodiment of the present invention, the sum of the rotation margin of the first rotating shaft and the rotation margin of the second rotating shaft is less than or equal to 2.

In an embodiment of the present invention, the above-mentioned dual-shaft module further includes a third switching member, which is movably disposed on the casing and abuts against at least one of the first shaft and the second shaft.

In an embodiment of the present invention, the above-mentioned first rotating shaft further has a seventh cam structure, and the second rotating shaft further has an eighth cam structure. During the rotation of the first rotating shaft and the second rotating shaft, the third switching member is subject to the The seven cam structure or the eighth cam structure is driven to move between the first rotating shaft and the second rotating shaft.

Based on the above, in the dual-shaft module of the foldable electronic device, the first shaft, the second shaft and the casing have corresponding cam structures, so as to rotate the first shaft and the second shaft to open and close, and the casing is then mounted on the casing. A plurality of switching elements that can move back and forth between the rotating shafts are arranged inside, so as to further allow the first and second rotating shafts to rotate in sequence with the interference of the switching elements, and when rotated to one of the states, the folding The bodies of the electronic devices are flattened to each other and located on the same plane, that is, in this embodiment, the actuation sequence of the first rotating shaft and the second rotating shaft is limited by the switching member, so that the foldable electronic device in the unfolded state can be used for provide better user experience.

FIG. 1 is a foldable electronic device according to an embodiment of the present invention. FIG. 2A and FIG. 2B are schematic diagrams of the dual-shaft module from different perspectives. Please refer to FIG. 1 , FIG. 2A and FIG. 2B at the same time. In this embodiment, the foldable electronic device 10 , such as a notebook computer, includes a first body 11 , a second body 12 and a pair of dual-shaft modules 100 . The dual-shaft module 100 is connected between the first body 11 and the second body 12 , so that the first body 11 and the second body 12 can be opened and closed relative to each other through the dual-shaft module 100 . Since the pair of dual-axis modules 100 are symmetrically disposed between the first body 11 and the second body 12 with the same structure, only one side of the dual-axis modules 100 is used as an example for description in the following.

Referring to FIGS. 2A and 2B again, in this embodiment, the dual-shaft module 100 includes a first shaft 110 , a second shaft 120 , a housing 150 , a first switching member 130 and a second switching member 140 . The first rotating shaft 110 has a shaft portion 111 and a bracket 113 in an integral structure, wherein the bracket 113 is assembled to the first body 11 . The second rotating shaft 120 has a shaft portion 121 and a bracket 123 in an integral structure, wherein the bracket 123 is assembled to the first body 11 . Furthermore, the shaft portion 111 of the first rotating shaft 110 passes through the casing 150 and the components 112 , 114 , 115 , 116 , 117 , and 118 in sequence along the axial direction X1 . 111 provides the torque required to rotate in axis X1. Similarly, the shaft portion 121 of the second rotating shaft 120 passes through the casing 150 and the components 122 , 124 , 115 , 126 , 127 and 128 in sequence along the axial direction X2 . The portion 121 provides the torque required to rotate in the axial direction X2.

In addition, the first rotating shaft 110 also has a first cam structure C1 and a second cam structure C2 located on the member 112 and facing away from each other along the axial direction X1, and the second rotating shaft 120 also has a first cam structure C1 and a second cam structure C2 located on the member 122 and facing away from each other along the axial direction X2. Pair the third cam structure C3 and the fourth cam structure C4. The casing 150 has a fifth cam structure C5 and a sixth cam structure C6 . The first rotating shaft 110 and the second rotating shaft 120 are parallel to each other and pass through the casing 150 , that is, the axial direction X1 is parallel to the axial direction X2 . The first switching member 130 and the second switching member 140 are respectively movably disposed on the housing 150 and located between the first rotating shaft 110 and the second rotating shaft 120 .

More importantly, in this embodiment, the moving paths of the first switching member 130 respectively intersect the moving paths of the first cam structure C1 and the third cam structure C3, and the moving paths of the second switching member 140 are respectively intersected with the moving paths of the second cam structure C1 and the third cam structure C3. The moving paths of the structure C2 and the fourth cam structure C4 intersect, the fifth cam structure C5 is located on the moving path of the second cam structure C2, and the sixth cam structure C6 is located on the moving path of the fourth cam structure C4, so that the first cam structure C5 is located on the moving path of the fourth cam structure C4. The rotating shaft 110 and the second rotating shaft 120 rotate in sequence, wherein the moving path of the first switching member 130 and the moving path of the second switching member 140 are substantially orthogonal to the axial direction X1 of the first rotating shaft 110 and the axial direction of the second rotating shaft 120 X2, which will be explained in detail later.

FIG. 3A is a top view of the dual-shaft module. 3B to 3F are partial cross-sectional views of the foldable electronic device in different states. Here, FIG. 3B to FIG. 3F are respectively sectional views of the dual-shaft module of FIG. 3A along the section A-A and the section B-B, and those in the same state are shown in the same figure. Meanwhile, FIG. 3B to FIG. 3F together indicate the rotation margins of the first rotating shaft 110 and the second rotating shaft 120 in the states shown.

Referring to FIGS. 3A and 3B first, the first switching member 130 , the first cam structure C1 and the third cam structure C3 are located on a first operating plane, and the first operating plane is the section A-A. The second switching member 140 , the second cam structure C2 , the fourth cam structure C4 , the fifth cam structure C5 and the sixth cam structure C6 are located on the second operating plane, and the second operating plane is the section B-B. It can be clearly seen from FIG. 3A that the first operation plane (section A-A) and the second operation plane (section B-B) are the same as the normal lines of the axial direction X1 of the first rotating shaft 110 and the axial direction X2 of the second rotating shaft 120 .

In detail, please refer to FIG. 3B , which shows the first state of the dual-shaft module 100 . At this time, the first switching member 130 blocks the rotation of the third cam structure C3 along the first direction D1 , and the fifth cam structure C5 blocks the second The cam structure C2 rotates along the first direction D1, and the sixth cam structure C6 blocks the rotation of the fourth cam structure C4 along the second direction D2, so that only the first rotating shaft 110 of the dual-shaft module 100 has a rotation margin, and The rotation margin provided is only in the second direction D2, wherein the first direction D1 (counterclockwise direction shown) is opposite to the second direction D2 (clockwise direction shown).

In other words, the dual hinge module 100 in the first state also means that the first body 11 and the second body 12 of the foldable electronic device 10 are in a mutually closed state, and the opening and closing angles are defined here. is 0 degrees.

It should be noted that at this time, one end of the first switching member 130 (the right end of the structure shown in the figure) is in contact with the first cam structure C1, so that the other end of the first switching member 130 (the left end of the structure shown in the figure) blocks the third cam structure C3 rotates in the first direction D1. That is to say, for the first switching member 130, the right end of the structure is blocked by the first cam structure C1 and cannot move to the right in the figure, thus causing the left end of the first switching member 130 to be stuck on the third cam structure C3 The blocking effect is achieved on the moving path along the first direction D1.

In this way, for the first rotating shaft 110 , although the first cam structure C1 can rotate in the first direction D1 or the second direction D2 without any obstruction, the fifth cam structure C5 can rotate along the second cam structure C2 The rotation in the first direction D1 causes blocking, so that the first rotating shaft 110 only has a rotation margin along the second direction D2 in the end. For the second rotating shaft 120 , no matter along the first direction D1 or the second direction D2 , the second rotating shaft 120 may be blocked, so the second rotating shaft 120 does not have any rotation margin.

Next, please refer to FIG. 3C , which is the second state after the subsequent action of FIG. 3B , that is, the first body 11 and the first rotating shaft 110 are rotated 90 degrees along the second direction D2 . The opening and closing angle between 11 and the second body 12 is defined as 90 degrees. In the second state, the sixth cam structure C6 blocks the rotation of the fourth cam structure C4 in the second direction D2, and the second switching member 140 blocks the rotation of the second cam structure C2 in the second direction D2, so that the dual-shaft mode In the group 100, the second rotating shaft 120 has a rotational margin only along the first direction D1, and the first rotating shaft 110 has a rotational margin only along the first direction D1.

In the second state, one end of the second switching member 140 (the left end of the structure shown in the figure) abuts against the fourth cam structure C4, so that the other end of the second switching member 140 (the right end of the structure shown in the figure) blocks the second cam structure C2 Rotate in the second direction D2. In other words, at this time, for the first rotating shaft 110, it is blocked by the second switching member 140 along the second direction D2, so only the rotation margin along the first direction D1 remains, that is, the transition from FIG. 3C to The state of Figure 3B.

It should also be noted that the first cam structure C1 is moved away from one end of the first switching member 130 (the right end of the structure shown in the figure), and the other end of the first switching member 130 (the left end of the structure shown in the figure) is located along the third cam structure C3 along the On a moving path in a direction D1, when the third cam structure C3 rotates in the first direction D1, the third cam structure C3 drives the first switching member 130 to move toward the first rotating shaft 110. In other words, at this time, although the first switching member 130 is still located on the moving path of the third cam structure C3 along the first direction D1 as shown in the lower part of FIG. It is important that the right end of the structure of the first switching member 130 is not blocked by the first cam structure C1, so the second body 12 and the second rotating shaft 120 can still smoothly rotate along the first direction D1, and the first switching member 130 Push the first rotating shaft 110 to the right to switch to the third state shown in FIG. 3D .

Next, please refer to FIG. 3D , the second rotating shaft 120 of the second body 12 is rotated by 90 degrees along the first direction D1 following the next step of FIG. 3C , so that the first body 11 and the second body 12 are flat with each other and The third state is located in the same plane, and its opening and closing angle is defined as 180 degrees here. In the third state, the first switching member 130 blocks the rotation of the first cam structure C1 in the first direction D1, and the second switching member 140 blocks the rotation of the second cam structure C2 in the second direction D2, so that the dual-shaft mold In the group 100, only the second rotating shaft 120 has a rotation margin, and what it has is a rotation margin along the first direction D1 and the second direction D2.

At this time, one end of the first switching member 130 (the left end of the structure shown in the figure) abuts against the third cam structure C3, so that the other end of the first switching member 130 (the right end of the structure shown in the figure) blocks the first cam structure C1 from moving along the first cam structure C1. Rotation in direction D1. One end of the second switching member 140 (the left end of the structure shown in the figure) abuts against the fourth cam structure C4, so that the other end of the second switching member 140 (the right end of the structure shown in the figure) blocks the rotation of the second cam structure C2 in the second direction D2 .

In other words, in the third state, for the first rotating shaft 110 , its rotation margin along the first direction D1 is offset by the blocking of the first switching member 130 . At the same time, its rotational margin along the second direction D2 is also offset by being blocked by the second cam structure C2. For the second rotating shaft 120, it is not blocked by any means, so it can be rotated along the second direction D2 to switch to the second state shown in FIG. fourth state.

It should also be mentioned that, as shown in FIG. 3D , because in the third state of 180 degrees shown, the first body 11 and the second body 12 are relatively flattened and maintained on the same plane, so that it is possible to avoid the gap between the bodies. The generated steps cause inconvenience for the user to operate, so as to overcome the aforementioned problems and improve the user's operating feeling.

3E, in the fourth state, the sixth cam structure C6 blocks the rotation of the fourth cam structure C4 along the first direction D1, and the first switching member 130 blocks the rotation of the first cam structure C1 along the first direction D1, so as to In the dual-shaft module 100, the second shaft 120 has a rotation margin only along the second direction D2, and the first shaft 110 has a rotation allowance only along the second direction D2. Here, the opening and closing angle of the first body 11 and the second body 12 is defined as 270 degrees.

Further, one end of the first switching member 130 (the left end of the structure shown in the figure) abuts against the third cam structure C3, so that the other end of the first switching member 130 (the right end of the structure shown in the figure) blocks the first cam structure C1 along the first cam structure C1. Rotate in one direction D1. The fourth cam structure C4 moves away from one end of the second switching member 140 (the left end of the structure shown in the figure), and the other end of the second switching member 140 (the right end of the structure shown in the figure) is located on the moving path of the second cam structure C2, so that when the first When the two cam structures C2 rotate along the second direction D2 , the second cam structures C2 drive the second switching member 140 to move toward the second rotating shaft 120 .

In other words, for the first rotating shaft 110, its rotational margin along the first direction D1 is blocked by the first switching element 130, and its rotational margin along the second direction D2 is offset by the second switching element 140 is no longer blocked by the fourth cam structure C4 and can be executed smoothly. For the second rotating shaft 120, its rotational margin along the first direction D1 is blocked by the sixth cam structure C6 and offset, while its rotational margin along the second direction D2 is not blocked and can be smoothly executed, that is, It is the second body 12 (or the second rotating shaft 120 ) converted from FIG. 3E to FIG. 3D .

Finally, please refer to the fifth state in FIG. 3F , which follows from FIG. 3E by rotating the first body 11 and the first rotating shaft 110 by 90 degrees. Here, the opening and closing angle of the first body 11 and the second body 12 is defined as 360 degrees, that is, the first body 11 and the second body 12 are turned over and are in a completely opposite state as shown in FIG. 3B . In the fifth state, the fifth cam structure C5 blocks the rotation of the second cam structure C2 in the second direction D2, the second switching member 140 blocks the rotation of the fourth cam structure C4 in the second direction D2, and the sixth cam structure C6 blocks the rotation of the fourth cam structure C4 in the second direction D2. The four-cam structure C4 rotates along the first direction D1 , so that only the first rotating shaft 110 in the dual-shaft module 100 has a rotation margin, and what it has is only a rotation margin along the first direction D1 .

Further, one end of the second switching member 140 (the right end of the structure shown in the figure) is in contact with the second cam structure C2, so that the other end of the second switching member 140 (the left end of the structure shown in the figure) blocks the fourth cam structure C4 from moving along the second cam structure C4. The second direction D2 rotates. In other words, at this time, for the first rotating shaft 110, its rotation margin along the second direction D2 is offset by the blocking of the fifth cam structure C5, and only the rotation margin along the first direction D1 remains, that is, It can be made to transition from the fifth state of Figure 3F to the fourth state of Figure 3E. For the second rotating shaft 120 , the fourth cam structure C4 is blocked by the second switching member 140 and the sixth cam structure C6 at the same time, and no longer has a rotation margin in either direction. That is to say, for the foldable electronic device 10 , in the state shown in FIG. 3F , it can only drive the first body 11 (the first rotating shaft 110 ) to rotate along the first direction D1 .

In addition, if the first body 11 and the second body 12 are to be converted from the completely inverted fifth state to the fully closed first state, the above steps only need to be reversed (sequentially from FIG. 3F to FIG. 3B ) That is, it will not be repeated here.

It can be clearly seen from the state changes shown in FIGS. 3B to 3F , through the matching of the first switching member 130 and the second switching member 140 with respect to the cam structure, that is, the movement (rotation) paths of the aforementioned members There is a matching relationship corresponding to each other, so that the first rotating shaft 110 and the second rotating shaft 120 can be rotated in sequence. Makes sequence rotation work smoothly.

FIG. 4A is a schematic diagram of part of the components of the dual-shaft module according to another embodiment. 4B to 4F are partial cross-sectional views of the dual-shaft module in different states. FIG. 4A omits the housing 250 to facilitate the identification of the first switching member 130 , the second switching member 140 and the third switching member 160 . Please refer to FIG. 4A and FIG. 4B first. In this embodiment, the dual-shaft module further includes a third switching member 160 , which is movably disposed on the housing 250 and abuts with the first switching member 130 and the second switching member 140 respectively. at least one of the first rotating shaft 110 and the second rotating shaft 120 . Further, the first rotating shaft 110 also has a seventh cam structure C71, and the second rotating shaft 120 also has eighth cam structures C81 and C82. During the rotation of the first rotating shaft 110 and the second rotating shaft 120, the third switching member 160 Driven by the seventh cam structure C71 or the eighth cam structures C81 and C82 to move between the first rotating shaft 110 and the second rotating shaft 120 .

In detail, please refer to FIGS. 4B to 4F , which are consistent with the changing states of FIGS. 3B to 3F , and FIGS. 4B to 4F correspond to the cross-sectional views of the dual-shaft module of FIG. 3A along the section C-C. Since the first switching member 130 and the second switching member 140 have been described above, only the third switching member 160 is described here.

In this embodiment, the third switching member 160 has a convex portion C72 for corresponding to the seventh cam structure C71 of the first rotating shaft 110 , and the third switching member 160 further has a convex portion C83 for corresponding to the second rotating shaft 120 . Eighth cam structures C81, C82.

First, in the first state shown in FIG. 4B , the convex portion C72 of the third switching member 160 abuts against the member 112 of the first rotating shaft 110 , and the convex portion C83 abuts against the eighth cam structure C81 of the member 122 . Next, in the second state shown in FIG. 4C , because the first shaft 110 rotates in the second direction D2 , the component 112 is changed to the seventh cam structure C71 corresponding to the convex portion C72 but there is a gap. Next, in FIG. 4D , due to the rotation of the second body 12 and the second shaft 120 in the first direction D1, the third switching member 160 is driven to move toward the first shaft 110, that is, the convex portion C83 is moved away due to the rotation of the member 122 The eighth cam structure C82 and the third switching member 160 also move toward the first rotating shaft 110 so that the convex portion C72 abuts against the seventh cam structure C71.

Next, in FIG. 4E , the second rotating shaft 120 continues to rotate along the first direction D1 to keep the gap between the eighth cam structure C81 relative to the convex portion C83 of the third switching member 160 . Finally, in FIG. 4F , the member 112 rotates in the second direction D2 to move the convex portion C72 away from the seventh cam structure C71 , and pushes the third switching member 160 toward the second rotating shaft 120 , so that the convex portion C83 abuts to the eighth cam structure C81. Here, the third switching member 160 is used for cooperating with the conversion process of the first switching member 130 and the second switching member 140 to abut against the first rotating shaft 110 (the part 112 of the) and the second rotating shaft 120 (the part 122 ), In this way, the dual-shaft module can have a relatively stable conversion effect, that is, the third switching member 160 can be matched with the first switching member 130 or the second switching member 140 to abut against the first rotating shaft 110 and the second rotating shaft 120, so as to avoid The switching process produces uneven stress.

To sum up, in the above-mentioned embodiments of the present invention, the dual-shaft module and the foldable electronic device using the same, the first and second shafts and the casing have corresponding cam structures as the first shaft. It is used for rotating and closing with the second rotating shaft, wherein a plurality of switching elements that can reciprocate between the rotating shafts are arranged in the casing, so as to further allow the first and second rotating shafts to generate a sequence with the interference of the switching elements. When rotated to one of the states, the bodies of the foldable electronic device are flattened with each other and located on the same plane, which is convenient for the user to operate. Furthermore, in addition to being used as the corresponding matching for generating the sequence rotation, the switching members further use the matching between the switching members to contact the first rotating shaft or the second rotating shaft, so as to improve the stability of the switching process.

Accordingly, in this embodiment, the switching member restricts the action sequence of the first rotating shaft and the second rotating shaft, so that the foldable electronic device in the unfolded state can provide the user with a better use experience.

10: Foldable electronic device 11: The first body 12: Second body 100: Double shaft module 110: The first reel 111: Shaft 112, 114, 115, 116, 117, 118: Components 113: Bracket 120: The second reel 121: Shaft 122, 124, 126, 127, 128: Components 123: Bracket 130: First switching piece 140: Second switching piece 150, 250: shell 160: The third switching piece A-A, B-B, C-C: Sections C1: The first cam structure C2: Second cam structure C3: The third cam structure C4: Fourth cam structure C5: Fifth cam structure C6: The sixth cam structure C71: The seventh cam structure C72, C83: convex part C81, C82: The eighth cam structure D1: first direction D2: Second direction X1, X2: Axial

FIG. 1 is a foldable electronic device according to an embodiment of the present invention. FIG. 2A and FIG. 2B are schematic diagrams of the dual-shaft module from different perspectives. FIG. 3A is a top view of the dual-shaft module. 3B to 3F are partial cross-sectional views of the foldable electronic device in different states. FIG. 4A is a schematic diagram of part of the components of the dual-shaft module according to another embodiment. 4B to 4F are partial cross-sectional views of the dual-shaft module in different states.

10: Foldable electronic device

11: The first body

12: Second body

100: Double shaft module

Claims (34)

A dual-shaft module, comprising: a first rotating shaft with a first cam structure and a second cam structure facing away from each other along its axial direction; a second shaft with a third cam structure and a fourth cam structure facing away from each other along its axial direction; a casing having a fifth cam structure and a sixth cam structure, the first rotating shaft and the second rotating shaft passing through the casing in parallel with each other; and A first switching member and a second switching member are respectively movably disposed on the housing and located between the first rotating shaft and the second rotating shaft, The moving paths of the first switching member respectively intersect with the moving paths of the first cam structure and the third cam structure, and the moving paths of the second switching member respectively intersect the moving paths of the second cam structure and the fourth cam structure The paths intersect, the fifth cam structure is located on the moving path of the second cam structure, and the sixth cam structure is located on the moving path of the fourth cam structure, so that the first rotating shaft and the second rotating shaft rotate in sequence . As claimed in claim 1, in a first state, the first switching member blocks the third cam structure from rotating in a first direction, and the fifth cam structure blocks the second cam structure from rotating along the Rotation in the first direction, and the sixth cam structure blocks the rotation of the fourth cam structure in a second direction, so that the dual-shaft module has a rotation margin only on the first shaft and only along the second shaft. Rotational allowance for directions, the first direction being opposite to the second direction. The dual-shaft module of claim 2, wherein one end of the first switching member abuts against the first cam structure, so that the other end of the first switching member blocks the third cam structure along the first direction rotate. As claimed in claim 1, in a second state, the sixth cam structure blocks the fourth cam structure from rotating in a second direction, and the second switching member blocks the second cam structure from rotating along a second direction. The second direction is rotated, so that in the dual-shaft module, the second shaft has a rotation margin only along a first direction, and the first shaft has a rotation allowance only along the first direction, The first direction is opposite to the second direction. The dual-shaft module of claim 4, wherein one end of the second switching member abuts against the fourth cam structure, so that the other end of the second switching member blocks the second cam structure along the second direction rotate. The dual-shaft module of claim 4, wherein the first cam structure moves away from one end of the first switching member, and the other end of the first switching member is located at the movement of the third cam structure along the first direction On the path, when the third cam structure rotates along the first direction, the third cam structure drives the first switching member to move toward the first rotating shaft. As claimed in claim 1, in a third state, the first switching member blocks the first cam structure from rotating in a first direction, and the second switching member blocks the second cam structure from rotating along a Rotate in the second direction, so that the dual-axis module only has a rotation margin for the second rotation axis, and has a rotation margin along the first direction and the second direction, the first direction is opposite to the first direction. two directions. The dual-shaft module of claim 7, wherein one end of the first switching member abuts against the third cam structure, so that the other end of the first switching member blocks the first cam structure along the first direction rotate. The dual-shaft module of claim 7, wherein one end of the second switching member abuts against the fourth cam structure, so that the other end of the second switching member blocks the second cam structure along the second direction rotate. As claimed in claim 1, in a fourth state, the sixth cam structure blocks the fourth cam structure from rotating in a first direction, and the first switching member blocks the first cam structure from rotating along the Rotating in the first direction, so that in the dual-shaft module, the second shaft has a rotation margin only along a second direction, and the first shaft has a rotation allowance only along the second direction, the The first direction is opposite to the second direction. The dual-shaft module of claim 10, wherein one end of the first switching member abuts against the third cam structure, so that the other end of the first switching member blocks the first cam structure along the first direction rotate. The dual-shaft module of claim 10, wherein the fourth cam structure is moved away from one end of the second switching member, and the other end of the second switching member is located on the moving path of the second cam structure, so that when When the second cam structure rotates along the second direction, the second cam structure drives the second switching member to move toward the second rotating shaft. As claimed in claim 1, in a fifth state, the fifth cam structure blocks the second cam structure from rotating in a second direction, and the second switching member blocks the fourth cam structure from rotating along the Rotating in the second direction, and the sixth cam structure blocks the fourth cam structure from rotating in a first direction, so that in the dual-shaft module, only the first shaft has a rotation margin, and only the first shaft has a rotation margin along the first direction. Rotation margin in one direction, the first direction is opposite to the second direction. The dual-shaft module of claim 13, wherein one end of the second switching member abuts against the second cam structure, so that the other end of the second switching member blocks the fourth cam structure along the second direction rotate. The dual-spindle module of claim 1, wherein the sum of the rotation margin of the first rotating shaft and the rotation margin of the second rotating shaft is less than or equal to 2. The dual-shaft module according to claim 1, further comprising: A third switching element is movably disposed on the casing and abuts against at least one of the first rotating shaft and the second rotating shaft. The dual-shaft module of claim 16, wherein the first shaft further has a seventh cam structure, and the second shaft further has an eighth cam structure, during the rotation process of the first shaft and the second shaft wherein, the third switching member is driven by the seventh cam structure or the eighth cam structure to move between the first rotating shaft and the second rotating shaft. A foldable electronic device, comprising: a first body; a second body; A dual-shaft module is connected to the first body and the second body, so that the first body and the second body are rotated and opened and closed relative to each other through the dual-shaft module, and the dual-shaft module includes: a first rotating shaft with a first cam structure and a second cam structure facing away from each other along its axial direction; a second shaft with a third cam structure and a fourth cam structure facing away from each other along its axial direction; a casing having a fifth cam structure and a sixth cam structure, the first rotating shaft and the second rotating shaft passing through the casing in parallel with each other; and A first switching member and a second switching member are respectively movably disposed on the housing and located between the first rotating shaft and the second rotating shaft, The moving paths of the first switching member respectively intersect with the moving paths of the first cam structure and the third cam structure, and the moving paths of the two switching members respectively intersect the moving paths of the second cam structure and the fourth cam structure intersecting, the fifth cam structure is located on the moving path of the second cam structure, and the sixth cam structure is located on the moving path of the fourth cam structure, so that the first rotating shaft and the second rotating shaft rotate in sequence, And during the sequence of rotation, the first body and the second body are in a state of being spread out and lying on the same plane. As claimed in claim 18, in a first state, the first switching member blocks the third cam structure from rotating in a first direction, and the fifth cam structure blocks the second cam structure from rotating along the Rotation in the first direction, and the sixth cam structure blocks the rotation of the fourth cam structure in a second direction, so that the dual-shaft module has a rotation margin only on the first shaft and only along the second shaft. Rotational allowance for directions, the first direction being opposite to the second direction. The foldable electronic device as claimed in claim 19, wherein one end of the first switching member abuts against the first cam structure, so that the other end of the first switching member blocks the third cam structure along the first direction rotate. The foldable electronic device of claim 18, in a second state, the sixth cam structure blocks the fourth cam structure from rotating in a second direction, and the second switching member blocks the second cam structure from rotating along a second direction The second direction is rotated, so that in the dual-shaft module, the second shaft has a rotation margin only along a first direction, and the first shaft has a rotation allowance only along the first direction, The first direction is opposite to the second direction. The foldable electronic device as claimed in claim 21, wherein one end of the second switching member abuts against the fourth cam structure, so that the other end of the second switching member blocks the second cam structure along the second direction rotate. The foldable electronic device of claim 21, wherein the first cam structure is moved away from one end of the first switching member, and the other end of the first switching member is located at the movement of the third cam structure along the first direction On the path, when the third cam structure rotates along the first direction, the third cam structure drives the first switching member to move toward the first rotating shaft. The foldable electronic device as claimed in claim 18, in a third state, the first switching member blocks the first cam structure from rotating in a first direction, and the second switching member blocks the second cam structure from rotating along a Rotate in the second direction, so that the dual-axis module only has a rotation margin for the second rotation axis, and has a rotation margin along the first direction and the second direction, the first direction is opposite to the first direction. Two directions, and the first body and the second body are flat with each other and are on the same plane. The foldable electronic device of claim 24, wherein one end of the first switching member abuts against the third cam structure, so that the other end of the first switching member blocks the rotation of the first cam structure along the first direction . The foldable electronic device as claimed in claim 24, wherein one end of the second switching member abuts against the fourth cam structure, so that the other end of the second switching member blocks the second cam structure along the second direction rotate. As claimed in claim 18, in a fourth state, the sixth cam structure blocks the fourth cam structure from rotating in a first direction, and the first switching member blocks the first cam structure from rotating along the Rotating in the first direction, so that in the dual-shaft module, the second shaft has a rotation margin only along a second direction, and the first shaft has a rotation allowance only along the second direction, the The first direction is opposite to the second direction. The foldable electronic device of claim 27, wherein one end of the first switching member abuts against the third cam structure, so that the other end of the first switching member blocks the first cam structure along the first direction rotate. The foldable electronic device as claimed in claim 27, wherein the fourth cam structure is moved away from one end of the second switching member, and the other end of the second switching member is located on the moving path of the second cam structure, so that when When the second cam structure rotates along the second direction, the second cam structure drives the second switching member to move toward the second rotating shaft. As claimed in claim 18, in a fifth state, the fifth cam structure blocks the second cam structure from rotating in a second direction, and the second switching member blocks the fourth cam structure from rotating along the Rotating in the second direction, and the sixth cam structure blocks the fourth cam structure from rotating in a first direction, so that in the dual-shaft module, only the first shaft has a rotation margin, and only the first shaft has a rotation margin along the first direction. Rotation margin in one direction, the first direction is opposite to the second direction. The foldable electronic device as claimed in claim 30, wherein one end of the second switching member abuts against the second cam structure, so that the other end of the second switching member blocks the fourth cam structure along the second direction rotate. The foldable electronic device of claim 18, wherein the sum of the rotation margin of the first rotating shaft and the rotation margin of the second rotating shaft is less than or equal to 2. The foldable electronic device as claimed in claim 18, wherein the dual-shaft module further comprises: A third switching element is movably disposed on the casing and abuts against at least one of the first rotating shaft and the second rotating shaft. The foldable electronic device as claimed in claim 33, wherein the first rotating shaft further has a seventh cam structure, the second rotating shaft further has an eighth cam structure, during the rotation process of the first rotating shaft and the second rotating shaft wherein, the third switching member is driven by the seventh cam structure or the eighth cam structure to move between the first rotating shaft and the second rotating shaft.

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