TWI848661B - Foldable electronic device - Google Patents

Abstract

A foldable electronic device includes two bodies, a hinge module and a linkage mechanism. The bodies respectively include a base and a casing. The hinge module is connected between the bases. The linkage mechanism is disposed on the hinge module and one of the casings, and adapted to generating movement in a first movement direction. One of the casings is slidably disposed on the corresponding base, and the linkage mechanism is connected to the slidable casing. When the linkage mechanism generates movement in the first movement direction, the linkage mechanism drives the slidable casing to move relative to the corresponding base, so that the opposite sides of the slidable casing respectively expose a first opening. slot and a second opening slot.

Description

Folding electronic devices

The present invention relates to an electronic device, and in particular to a foldable electronic device.

The laptops available on the market generally have physical buttons or indicator lights on the side, which are not only far away from the user, making it inconvenient to use, but also have these components exposed, which also affects the appearance.

The present invention provides a foldable electronic device, which can solve the problems of inconvenience in use and unsightly appearance of existing foldable electronic devices.

The foldable electronic device of the present invention includes two bodies, a rotating shaft module and a linkage mechanism. These bodies include a base and a shell respectively. The rotating shaft module is connected between these bases. The linkage mechanism is arranged on one of these shells and the rotating shaft module, and the linkage mechanism is suitable for generating a movement in a first movement direction. One of these shells is slidably arranged on the corresponding base, and the linkage mechanism is connected to the slidable shell. When the linkage mechanism generates a movement in the first movement direction, the linkage mechanism drives the slidable shell to move relative to the corresponding base, so that the opposite sides of the slidable shell expose a first slot and a second slot respectively.

In an embodiment of the present invention, in the first state, the bodies are closed relative to each other, and the first slot and the second slot are shielded by the base.

In an embodiment of the present invention, in the second state, the bodies are arranged at a first angle relative to each other, and the first slot and the second slot are shielded by the base.

In an embodiment of the present invention, in the third state, the bodies are arranged at a second angle relative to each other, and the slidable housing exposes the first slot and the second slot.

In one embodiment of the present invention, during the process of transitioning from a second state to a third state, the bodies unfold relative to each other, the shaft module drives the linkage mechanism, and the linkage mechanism drives the slidable housing to slide relative to the corresponding base and expose the first slot and the second slot.

In an embodiment of the present invention, the linkage mechanism drives the slidable housing to move in a second movement direction relative to the corresponding base, the second movement direction is a direction away from the shaft module, and the second movement direction is different from the first movement direction.

In one embodiment of the present invention, the slidable housing has a functional area. The linkage mechanism is suitable for driving the housing to move relative to the corresponding base so that the functional area is shielded by the base or exposed to the first slot.

In one embodiment of the present invention, the linkage mechanism has an actuating portion, the slidable housing has a driven portion, and the actuating portion is connected to the driven portion, so that the linkage mechanism is suitable for driving the slidable housing to generate movement.

In one embodiment of the present invention, the actuating portion is adapted to move along a first movement direction, and the actuated portion extends along an extension direction inclined to the first movement direction. When the actuating portion moves along the first movement direction, the actuating portion and the actuated portion cooperate with each other to drive the slidable housing to move along a second movement direction different from the first movement direction.

In one embodiment of the present invention, when the slidable housing is relatively far away from the rotating shaft module, there is a gap between the housings.

In an embodiment of the present invention, the foldable electronic device further comprises a heat dissipation module disposed in one of the housings and adjacent to the shaft module, wherein when the housings have a gap, the heat dissipation module is exposed to the second slot.

In one embodiment of the present invention, the shaft module has a first guide portion, the linkage mechanism has a second guide portion, and the first guide portion is adapted to abut against the second guide portion so that the linkage mechanism generates movement in a first movement direction.

In one embodiment of the present invention, the above-mentioned shaft module has a third guide portion, and the linkage mechanism has a fourth guide portion. The third guide portion is suitable for abutting against the fourth guide portion to enable the linkage mechanism to generate a movement in a third movement direction, and the linkage mechanism is suitable for driving the slidable shell to move toward a fourth movement direction close to the shaft module relative to the corresponding base, wherein the third movement direction is opposite to the first movement direction.

In one embodiment of the present invention, another one of the above-mentioned housings can be slidably disposed on a corresponding base, and the linkage mechanism is further disposed on another one of the housings.

In one embodiment of the present invention, another one of the above-mentioned shells has another functional area, and the linkage mechanism is suitable for driving the other one of the shells to move relative to the corresponding base so that the other functional area is shielded by the corresponding base or exposed from the corresponding base.

Based on the above, in the foldable electronic device of the present invention, one of these shells can be slidably disposed on the corresponding base, and the linkage mechanism is connected to the slidable shell. When the linkage mechanism generates movement in a first movement direction, the linkage mechanism drives the slidable shell to move toward a second movement direction away from the shaft module relative to the corresponding base. It has excellent convenience of use and is beautiful.

In order to make the above features and advantages of the present invention more clearly understood, embodiments are given below and described in detail with reference to the accompanying drawings.

Fig. 1 is a three-dimensional schematic diagram of a foldable electronic device in a first state according to an embodiment of the present invention. Fig. 2 and Fig. 3 are exploded schematic diagrams of some components of the foldable electronic device of Fig. 1 at different viewing angles. Fig. 4 is a partial top view schematic diagram of the foldable electronic device of Fig. 1. Fig. 5 is a partial side view schematic diagram of the foldable electronic device of Fig. 1. Fig. 6 is a three-dimensional schematic diagram of the foldable electronic device of Fig. 1 in a second state. Fig. 7 is a partial top view schematic diagram of the foldable electronic device of Fig. 6. Fig. 8 is a partial side view schematic diagram of the foldable electronic device of Fig. 6. Fig. 9 is a three-dimensional schematic diagram of the foldable electronic device of Fig. 1 in a third state. Please refer to FIG. 1, FIG. 2, FIG. 3, FIG. 6 and FIG. 9. The foldable electronic device 100 of the present invention is, for example, a notebook computer, and can be a dual-screen notebook computer, but the present invention is not limited thereto. In other embodiments, the foldable electronic device is a smart phone. In other embodiments, the foldable electronic device is a single-screen notebook computer.

Specifically, the foldable electronic device 100 includes a body 110, a body 120, a shaft module 130, and a linkage mechanism 140. The body 110 includes a base 111 and a housing 112, and the body 120 includes a base 121 and a housing 122. The shaft module 130 is connected between the base 111 and the base 121. The linkage mechanism 140 is disposed on the housing 112 and the shaft module 130, and the linkage mechanism 140 is suitable for generating a movement in a first movement direction M1. The housing 112 is slidably disposed on the base 111, and the linkage mechanism 140 is connected to the slidable housing 112.

It is particularly noted that in this embodiment, the body 110 may be a body provided with electronic components such as a motherboard, a central processing unit, a hard disk, a memory, a display card, and a display screen, and the body 120 may be a body provided with a display screen.

In addition, in this embodiment, the rotating shaft module 130 adopts a double-shaft module, but the present invention is not limited thereto.

FIG10 is a partial top view schematic diagram of the foldable electronic device of FIG9. FIG11 is a partial side view schematic diagram of the foldable electronic device of FIG9. Please refer to FIG1, FIG4, FIG9 and FIG10. When the linkage mechanism 140 generates a movement in the first movement direction M1, the linkage mechanism 140 drives the slidable housing 112 to move relative to the base 111 in a second movement direction M2 away from the shaft module 130, so that the opposite sides of the slidable housing 112 expose a first slot 112c and a second slot 112d, respectively, wherein the second movement direction M2 is different from the first movement direction M1, which has excellent convenience of use and is beautiful.

Specifically, the housing 112 has a functional area 112a. The linkage mechanism 140 is adapted to drive the housing 112 to move relative to the base 111, so that the functional area 112a is shielded by the base 111 or exposed to the first slot 112c.

Please refer to FIG. 1 , FIG. 6 and FIG. 9 . In this embodiment, the foldable electronic device 100 is adapted to switch between a first state, a second state and a third state. In the first state, the two bodies 110 and 120 are closed relative to each other, and the first slot 112c and the second slot 112d are shielded by the base 111. In the second state, the two bodies 110 and 120 are opened relative to each other at a first angle θ1, and the first slot 112c and the second slot 112d are shielded by the base 111. In the third state, the two bodies 110 and 120 are opened relative to each other at a second angle θ2, and the slidable housing 112 exposes the first slot 112c and the second slot 112d.

In the process of switching from the second state to the third state, the two bodies 110 and 120 are relatively unfolded, in other words, the second angle θ2 is greater than the first angle θ1. At this time, the shaft module 130 drives the linkage mechanism 140, and the linkage mechanism 140 drives the slidable housing 112 to slide relative to the base 111 and gradually expose the first slot 112c and the second slot 112d.

Figures 12 to 14 are schematic diagrams of the use of a foldable electronic device according to an embodiment of the present invention. Please refer to Figures 12, 13 and 14. The function area 112a of the present invention is, for example but not limited to, a touch function panel. The touch function panel provides two options for user self-definition and preset function kits in terms of function definition. The function area 112a in Figures 12 and 13 represents a preset function kit provided to the user in advance. This preset function kit is a pre-set template. There are multiple built-in preset function kits, such as a conference function kit, an entertainment function kit, and a drawing function kit, for users to choose from. For example, the conference function kit allows users to control conference functions at the nearest operating distance, and directly turn on or off the lighting and color recognition functions to improve convenience and accuracy. In addition, the default function package is similar to the provided theme. Furthermore, users can also download or purchase other default function packages, such as maintenance function packages, business function packages, accounting function packages, etc.

The function area 112a in FIG. 14 indicates that the user has defined and changed the function keys to meet his or her needs. The user can select shapes, colors, and sounds to combine and customize these function keys, and place them within the function area 112a for use as clicks.

Accordingly, the foldable electronic device 100 of the present invention provides a function area 112a, which allows the user to select a preset function package or define it by himself, and use it as a button, which has excellent convenience. In addition, since the buttons are integrated into the function area 112a, the outer periphery of the body 110 does not need any physical buttons, which can maintain the appearance.

Please refer to Figures 2, 3, 6 and 7. The shaft module 130 includes a pivot seat 131A, a pivot seat 131B, a shaft 132A, a shaft 132B, a bracket 133A, a bracket 133B, a stopper 134, a driving member 135, a driving member 136, a torque member 137 and an outer cover 138.

The pivot seat 131A, the pivot seat 131B, the stopper 134 and the torque member 137 are sleeved on the rotating shaft 132A and the rotating shaft 132B. The pivot seat 131A is connected to the pivot seat 131B. The pivot seat 131A is located between the stopper 134 and the pivot seat 131B, and the pivot seat 131B is located between the pivot seat 131A and the torque member 137. The bracket 133A is connected between the rotating shaft 132A and the base 111, and the bracket 133B is connected between the rotating shaft 132B and the base 121. The driving member 135 and the driving member 136 are sleeved and engaged with the rotating shaft 132A to rotate synchronously with the rotating shaft 132A. The outer cover 138 covers the hinge seat 131A, the hinge seat 131B, the stopper 134 , the driving member 135 , the driving member 136 and the torque member 137 .

The shaft module 130 has a second stopper 132A1 disposed on the shaft 132A, a fourth stopper 132B1 disposed on the shaft 132B, a first stopper 134a and a third stopper 134b disposed on the stopper 134, a first guide portion 135a disposed on the drive member 135, and a third guide portion 136a disposed on the drive member 136.

The linkage mechanism 140 has an actuating portion 141, a second guide portion 142 and a fourth guide portion 143. The first guide portion 135a is adapted to abut against the second guide portion 142 to enable the linkage mechanism 140 to move in a first movement direction M1, and the third guide portion 136a is adapted to abut against the fourth guide portion 143 to enable the linkage mechanism 140 to move in a third movement direction M3, wherein the third movement direction M3 is opposite to the first movement direction M1.

The housing 112 has an actuated portion 112 b extending along an extension direction E inclined to the first movement direction M1 , and the actuating portion 141 is connected to the actuated portion 112 b , so that the linkage mechanism 140 is suitable for driving the housing 112 to move.

For example, the actuating portion 141 is a protrusion, the actuated portion 112b is a guide groove, and the protrusion is slidably disposed in the guide groove, so that the linkage mechanism 140 is suitable for driving the slidable shell 112 to move relative to the base 111 in a second direction M2 away from the rotating shaft module 130 or to move relative to the base 111 in a fourth movement direction M4 close to the rotating shaft module 130, but the present invention is not limited to this.

The actuating portion 141 is adapted to move along the first moving direction M1 or the third moving direction M3. Referring to FIG. 6, FIG. 7 and FIG. 8, when the actuating portion 141 moves along the first moving direction M1, the actuating portion 141 and the actuated portion 112b cooperate with each other to drive the housing 112 to move along the second moving direction M2 different from the first moving direction M1, so that the foldable electronic device 100 is converted to the state shown in FIG. 9, FIG. 10 and FIG. 11.

On the contrary, please refer to Figures 9, 10 and 11, when the actuating portion 141 moves along the third movement direction M3, the actuating portion 141 and the passive portion 112b cooperate with each other to drive the housing 112 to move along a fourth movement direction M4 different from the third movement direction M3, so that the foldable electronic device 100 is converted to the state shown in Figures 6, 7 and 8.

Please refer to FIG. 5 , FIG. 8 and FIG. 11 , the second stopper 132A1 is suitable for blocking the first stopper 134a, and the third stopper 134b is suitable for blocking the fourth stopper 132B1, so as to limit the closing angle of the body 110 and the body 120.

Please refer to FIG. 6, FIG. 7 and FIG. 8. The torque provided by the torque member 137 to the shaft 132A and the shaft 132B are different in magnitude. Therefore, when the body 120 of the foldable electronic device 100 is unfolded relative to the body 110, the torque on the side of the shaft 132A is larger, and the torque on the side of the shaft 132B is smaller, so the body 120 is unfolded first. Therefore, when the body 120 and the body 110 of the foldable electronic device 100 are unfolded relative to each other by 0 degrees to 90 degrees, only the shaft 132B rotates, and the shaft 132B does not rotate, so the housing 112 does not move, and the appearance structure is the same as that of a general notebook computer.

Further referring to FIG. 9 , FIG. 10 and FIG. 11 , when the body 120 is unfolded relative to the body 110 until the third stopper 134b blocks the fourth stopper 132B1, the user continues to unfold the body 120, so that the shaft 132A rotates, and the actuating portion 141 also cooperates with the driven portion 112b to drive the housing 112, and the area of the functional area 112a exposed gradually increases until the body 120 is unfolded 180 degrees relative to the body 110, and the functional area 112a is completely exposed.

Fig. 15 is a three-dimensional schematic diagram of the foldable electronic device of Fig. 6 at another viewing angle. Fig. 16 is a three-dimensional schematic diagram of the foldable electronic device of Fig. 9 at another viewing angle. Referring to Fig. 15 and Fig. 16 , the foldable electronic device 100 further includes a heat dissipation module 150 disposed on a body 110 and adjacent to the hinge module 130 . When the slidable housing 112 is relatively far away from the shaft module 130, a gap G is formed between the housing 112 and the housing 122. When the housing 112 and the housing 122 have the gap G, the heat dissipation module 150 is exposed to the second slot 112d. Therefore, the gap G can provide a heat dissipation path for the heat dissipation module 150, further increasing the heat dissipation effect of the foldable electronic device 100.

FIG. 17 and FIG. 18 are three-dimensional schematic diagrams of a foldable electronic device of another embodiment of the present invention. Referring to FIG. 17 and FIG. 18 , the difference between the foldable electronic device 200 of this embodiment and the foldable electronic device 100 of the aforementioned embodiment is that the body 210 of the foldable electronic device 200, which is provided with electronic components such as a motherboard, a central processing unit, a hard disk, a memory, a display card, and a display screen, may not have a sliding mechanism, and the sliding body is the body 220 provided with a display screen. When the housing 322 slides relative to the base 321 to expose the functional area 222a, the camera, microphone, and fill light can also be hidden or turned off.

For example, when the angle of the body 220 relative to the body 210 is less than or equal to 90 degrees, the camera, microphone, and fill light are hidden and in a closed state, thereby improving personal privacy. When the angle of the body 220 relative to the body 210 is between 90 degrees and 135 degrees, the camera, microphone, and fill light are exposed and in an open state, thereby improving work convenience. When the angle of the body 220 relative to the body 210 is between 135 degrees and 180 degrees, the camera, microphone, and fill light are exposed and in a closed state, thereby improving personal privacy.

FIG. 19 is a top view schematic diagram of a foldable electronic device of another embodiment of the present invention. Referring to FIG. 19 , in the foldable electronic device 300 of the present embodiment, another housing 322 is slidably disposed on another base 321, a linkage mechanism 340 is further disposed on another body 320, and a shaft module 330 is further connected to the linkage mechanism 340. Another housing 322 has another functional area 322a, and the linkage mechanism 340 is suitable for driving another housing 322 to move relative to another base 321, so that another functional area 322a is shielded by another base 321 or exposed from another base 321. Therefore, the foldable electronic device 300 provides both the functional area 112a and another functional area 322a, and can be used by two persons.

In summary, in the foldable electronic device of the present invention, one of the shells can be slidably disposed on a corresponding base, and a linkage mechanism is connected to the slidable shell. When the linkage mechanism generates movement in a first movement direction, the linkage mechanism drives the slidable shell to move in a second movement direction away from the shaft module relative to the corresponding base. It has excellent convenience of use and is beautiful.

Although the present invention has been disclosed as above by the embodiments, they are not intended to limit the present invention. Any person with ordinary knowledge in the relevant technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be defined by the scope of the attached patent application.

100, 200, 300: foldable electronic device 110, 120, 210, 220, 320: body 111, 121, 221, 321: base 112, 122, 222, 322: housing 112a, 222a: functional area 112b: passive part 112c: first slot 112d: second slot 322a: another functional area 130, 330: shaft module 131A, 131B: pivot seat 132A, 132B: shaft 132A1: second stopper 132B1: fourth stopper 133A, 133B: bracket 134: stopper 134a: first stopper 134b: third stopper 135, 136: driving member 135a: first guide 136a: third guide 137: torque member 138: outer cover 138a: slot 140, 340: linkage mechanism 141: actuator 142: second guide 143: fourth guide 150: heat dissipation module E: extension direction G: gap M1: first movement direction M2: second movement direction M3: third movement direction M4: fourth movement direction θ1: first angle θ2: second angle

FIG. 1 is a three-dimensional schematic diagram of a foldable electronic device in a first state according to an embodiment of the present invention. FIG. 2 and FIG. 3 are exploded schematic diagrams of some components of the foldable electronic device of FIG. 1 at different viewing angles. FIG. 4 is a partial top view schematic diagram of the foldable electronic device of FIG. 1. FIG. 5 is a partial side view schematic diagram of the foldable electronic device of FIG. 1. FIG. 6 is a three-dimensional schematic diagram of the foldable electronic device of FIG. 1 in a second state. FIG. 7 is a partial top view schematic diagram of the foldable electronic device of FIG. 6. FIG. 8 is a partial side view schematic diagram of the foldable electronic device of FIG. 6. FIG. 9 is a three-dimensional schematic diagram of the foldable electronic device of FIG. 1 in a third state. FIG. 10 is a partial top view schematic diagram of the foldable electronic device of FIG. 9. FIG. 11 is a partial side view schematic diagram of the foldable electronic device of FIG. 9. FIG. 12 to FIG. 14 are schematic diagrams of the use of the foldable electronic device of an embodiment of the present invention. FIG. 15 is a three-dimensional schematic diagram of the foldable electronic device of FIG. 6 at another viewing angle. FIG. 16 is a three-dimensional schematic diagram of the foldable electronic device of FIG. 9 at another viewing angle. FIG. 17 and FIG. 18 are three-dimensional schematic diagrams of the foldable electronic device of another embodiment of the present invention. FIG. 19 is a top view schematic diagram of the foldable electronic device of yet another embodiment of the present invention.

100: Foldable electronic devices

110, 120: Body

111, 121: base

112, 122: Shell

112a: Functional area

112b: Passive part

112c: First slotting

130: Shaft module

131A, 131B: hinge socket

132A, 132B: Rotating shaft

132A1: Second stopper

133A, 133B: Bracket

134: Stopper

134a: first stopper

135, 136: Drive parts

137: Torque parts

140: Linkage mechanism

141: Actuator

142: Second guide section

143: The fourth guide section

E: Extension direction

M1: First direction of movement

M2: Second direction of movement

M3: The third direction of movement

M4: Fourth direction of movement

θ2: Second angle

Claims (14)

A foldable electronic device comprises: two bodies, each comprising a base and a shell; a rotating shaft module connected between the bases; and a linkage mechanism, disposed on one of the shells and the rotating shaft module, and adapted to generate movement in a first movement direction, wherein one of the shells is slidably disposed on the corresponding base, and the linkage mechanism is connected to the slidable shell. When the linkage mechanism generates movement in the first movement direction, the linkage mechanism The structure drives the slidable housing to move relative to the corresponding base, so that the two opposite sides of the slidable housing respectively expose a first slot and a second slot, wherein when the slidable housing is relatively far away from the shaft module, there is a gap between the housings, and the foldable electronic device further includes a heat dissipation module, which is arranged in one of the housings and adjacent to the shaft module, wherein when the housings have the gap, the heat dissipation module is exposed to the second slot. A foldable electronic device as described in claim 1, wherein in a first state, the bodies are closed relative to each other, and the first slot and the second slot are shielded by the base. A foldable electronic device as described in claim 1, wherein in a second state, the bodies are unfolded at a first angle relative to each other, and the first slot and the second slot are shielded by the base. A foldable electronic device as described in claim 1, wherein in a third state, the bodies are opened at a second angle relative to each other, and the slidable housing exposes the first slot and the second slot. A foldable electronic device as described in claim 1, wherein during the process of switching from a second state to a third state, the bodies unfold relative to each other, the shaft module drives the linkage mechanism, and the linkage mechanism drives the slidable housing to slide relative to the corresponding base and expose the first slot and the second slot. A foldable electronic device as described in claim 1, wherein the linkage mechanism drives the slidable housing to move in a second movement direction relative to the corresponding base, the second movement direction is a direction away from the shaft module, and the second movement direction is different from the first movement direction. A foldable electronic device as described in claim 1, wherein the slidable housing has a functional area, and the linkage mechanism is suitable for driving the slidable housing to move relative to the corresponding base so that the functional area is shielded by the base or exposed to the first slot. A foldable electronic device as described in claim 1, wherein the linkage mechanism has an actuating portion, the slidable housing has an actuating portion, and the actuating portion is connected to the actuating portion, so that the linkage mechanism is suitable for driving the slidable housing to generate movement. A foldable electronic device as described in claim 8, wherein the actuating portion is adapted to move along the first movement direction, and the actuating portion extends along an extension direction inclined to the first movement direction, and when the actuating portion moves along the first movement direction, the actuating portion and the actuating portion cooperate with each other to drive the slidable housing to move along a second movement direction different from the first movement direction. A foldable electronic device as described in claim 1, wherein the shaft module has a first guide portion, the linkage mechanism has a second guide portion, and the first guide portion is suitable for abutting against the second guide portion to enable the linkage mechanism to generate movement in the first movement direction. A foldable electronic device as described in claim 1, wherein the rotating shaft module has a third guide portion, the linkage mechanism has a fourth guide portion, the third guide portion is suitable for abutting against the fourth guide portion to make the linkage mechanism generate a movement in a third movement direction, and the linkage mechanism is suitable for driving the slidable housing to move toward a fourth movement direction close to the rotating shaft module relative to the corresponding base, wherein the third movement direction is opposite to the first movement direction. A foldable electronic device as described in claim 1, wherein another one of the housings can be slidably disposed on the corresponding base, and the linkage mechanism is further disposed on another one of the housings. A foldable electronic device as described in claim 12, wherein another one of the housings has another functional area, and the linkage mechanism is suitable for driving another one of the housings to move relative to the corresponding base so that the other functional area is shielded by the corresponding base or exposed from the corresponding base. A foldable electronic device comprises: two bodies, each comprising a base and a housing; a rotating shaft module connected between the bases; and a linkage mechanism, disposed on one of the housings and the rotating shaft module, and adapted to generate a movement in a first movement direction, wherein one of the housings is slidably disposed on the corresponding base, and the linkage mechanism is connected to the slidable housing. When the linkage mechanism generates the movement in the first movement direction, the linkage mechanism drives the slidable housing to move relative to the corresponding housing. The base moves so that the two opposite sides of the slidable shell expose a first groove and a second groove respectively, wherein the shaft module has a third guide portion, and the linkage mechanism has a fourth guide portion, the third guide portion is suitable for abutting against the fourth guide portion to make the linkage mechanism generate a movement in a third movement direction, and the linkage mechanism is suitable for driving the slidable shell to move toward a fourth movement direction close to the shaft module relative to the corresponding base, wherein the third movement direction is opposite to the first movement direction.

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