CN113311907B

CN113311907B - Rotating shaft module and portable electronic device

Info

Publication number: CN113311907B
Application number: CN202010121515.2A
Authority: CN
Inventors: 黄禹钦; 张正茂
Original assignee: Acer Inc
Current assignee: Acer Inc
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2023-07-25
Anticipated expiration: 2040-02-26
Also published as: CN113311907A

Abstract

The invention provides a rotating shaft module and a portable electronic device. The first rotating shaft component is arranged on the second bracket and is connected with the first bracket. The second rotating shaft component is arranged on the second bracket and separated from the first rotating shaft component. The switching component is movably arranged between the first rotating shaft component and the second rotating shaft component. In the first mode, the switching component is suitable for being stressed to be coupled with the first rotating shaft component and the second rotating shaft component, so that the first bracket and the second bracket can simultaneously rotate relatively through the first rotating shaft component and the second rotating shaft component. In the second mode, the switching assembly is suitable for being forced to move away from the first rotating shaft assembly and the second rotating shaft assembly, so that the first bracket and the second bracket can rotate relatively only through the first rotating shaft assembly.

Description

Rotating shaft module and portable electronic device

Technical Field

The invention relates to a rotating shaft module and a portable electronic device.

Background

In general, a portable electronic device such as a notebook computer or a mobile phone is generally pivoted to a display screen and a main body by a hinge module, and a user can rotate two housings of the portable electronic device to open and close relatively through the hinge module.

In detail, the general rotating shaft module can provide a fixed torque output of the portable electronic device, so that different torques can not be generated due to different opening and closing positions of the display screen and the main body in the opening and closing process. However, the display screen may not be stably positioned at the default position due to insufficient torque of the hinge module.

Furthermore, in the existing notebook computer, the rotation axis module only needs to meet the load requirement of a single display screen, so that once other screens are hung on the existing display screen, the load of the rotation axis module is not increased, and the original requirement condition is exceeded.

Disclosure of Invention

The invention is directed to a rotating shaft module and a portable electronic device, which provide a two-section torque source for a user to switch through a switching component.

According to an embodiment of the invention, the rotating shaft module comprises a first bracket, a second bracket, a first rotating shaft assembly, a second rotating shaft assembly and a switching assembly. The first rotating shaft component is arranged on the second bracket and is connected with the first bracket. The second rotating shaft component is arranged on the second bracket and separated from the first rotating shaft component. The switching component is movably arranged between the first rotating shaft component and the second rotating shaft component. In the first mode, the switching component is suitable for being stressed to be coupled with the first rotating shaft component and the second rotating shaft component, so that the first bracket and the second bracket can simultaneously rotate relatively through the first rotating shaft component and the second rotating shaft component. In the second mode, the switching assembly is suitable for being forced to move away from the first rotating shaft assembly and the second rotating shaft assembly, so that the first bracket and the second bracket can rotate relatively only through the first rotating shaft assembly.

According to an embodiment of the invention, the portable electronic device includes a first body, a second body, a third body, and at least one rotation shaft module. The third body is detachably assembled on the first body. The rotating shaft module comprises a first bracket, a second bracket, a first rotating shaft assembly, a second rotating shaft assembly and a switching assembly. The first support is arranged on the first machine body, and the second support is arranged on the second machine body. The first rotating shaft component is arranged on the second bracket and is connected with the first bracket. The second rotating shaft component is arranged on the second bracket and separated from the first rotating shaft component. The switching component is movably arranged between the first rotating shaft component and the second rotating shaft component. In the first mode, the third body is assembled to the first body, and the switching component is suitable for being coupled with the first rotating shaft component and the second rotating shaft component under the action of stress, so that the first body and the second body can be opened and closed in a relative rotating mode through the first rotating shaft component and the second rotating shaft component at the same time. In the second mode, the third body is detached from the first body, and the switching component is suitable for being stressed to move away from the first rotating shaft component and the second rotating shaft component, so that the first body and the second body are opened and closed in a relative rotating mode only through the first rotating shaft component.

Based on the above, the present invention sets the first rotating shaft assembly and the second rotating shaft assembly in the rotating shaft module and the portable electronic device using the same, and further the switching assembly is movably disposed between the first rotating shaft assembly and the second rotating shaft assembly, so that when the switching assembly is needed, for example, other objects need to be hung on the machine body, thereby increasing the weight, the user can drive the switching assembly to link the first rotating shaft assembly and the second rotating shaft assembly, so that the first machine body and the second machine body can provide the torque required when the machine body and the hung objects rotate to open and close together in the process of relatively rotating and opening through the rotating shaft module.

On the contrary, once the external object is removed, the original state of opening and closing of the pair of machine bodies relative to each other is restored, so that the user can drive the switching assembly to move away from the first rotating shaft assembly and the second rotating shaft assembly, namely the first rotating shaft assembly and the second rotating shaft assembly are separated from each other and are not connected, and therefore, the rotation opening and closing between the machine bodies can meet the torque force required by the rotation opening and closing of the machine bodies only through a single rotating shaft assembly (namely the first rotating shaft assembly).

Therefore, the rotating shaft module capable of switching the torsion can be switched to a corresponding mode according to the sequential requirements, and the application range of the rotating shaft module is facilitated.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

FIG. 1 is a schematic diagram of a spindle module according to an embodiment of the invention;

FIG. 2 is an exploded view of the spindle module of FIG. 1;

FIG. 3 is a schematic view of another state of the spindle module of FIG. 1;

FIG. 4 is a schematic diagram of a portable electronic device using a hinge module;

FIG. 5 shows a simplified partial schematic view of a spindle module according to another embodiment of the invention;

fig. 6A to 6D show corresponding motion diagrams of the second part and the guide post of fig. 5.

Description of the reference numerals

100. 400, a rotating shaft module;

110: a first spindle assembly;

111. 121, a shaft;

111a, 142a, stop structures;

112 a first gear;

113 a first torque source;

114. 124 locking attachment;

120 a second spindle assembly;

122 a second gear;

123, a second torque source;

130, a first bracket;

131, a body;

132, a carrying part;

140 a second bracket;

141, a body;

142, a limiting part;

150, a limiting component;

151, a first limiting piece;

152 a second stop;

160. 360, switching the component;

161 a third gear;

162. 175, springs;

163, button;

170, a drive assembly;

171 a first component;

172 a second component;

173 double tooth track;

173a first tooth arrangement;

173b a second tooth configuration;

173c, grooves;

174, guiding column;

200, a portable electronic device;

210 a first body;

220, a second body;

230, a third body;

240, a connecting mechanism;

310, a shell;

311, convex ribs;

a1, B1, tooth tops;

a2, B2, tooth bottom;

d1, direction;

f1, force;

f2, elasticity;

l1 and L2 are the rotation axis direction;

l3, moving axially;

X-Y-Z, rectangular coordinates.

Detailed Description

Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.

FIG. 1 is a schematic diagram of a spindle module according to an embodiment of the invention. Fig. 2 is an exploded view of the spindle module of fig. 1. Rectangular coordinates X-Y-Z are provided herein to facilitate component description. Referring to fig. 1 and fig. 2, in the present embodiment, the rotation shaft module 100 includes a first bracket 130, a second bracket 140, a first rotation shaft assembly 110, a second rotation shaft assembly 120, and a switching assembly 160. The first shaft assembly 110 is disposed at the second bracket 140 and is connected to the first bracket 130. The second shaft assembly 120 is disposed at the second bracket 140 and is separated from the first shaft assembly 110. The switching assembly 160 is movably disposed between the first shaft assembly 110 and the second shaft assembly 120. Here, the first shaft assembly 110 has a rotation axis L1, the second shaft assembly 120 has a rotation axis L2, and the switching assembly 160 has a movement axis L3 to move back and forth along the movement axis L3, wherein the rotation axis L1, the rotation axis L2, and the movement axis L3 are parallel to each other and different, i.e., all the three are parallel to the X axis but do not coincide with each other.

Referring to fig. 2 again, the spindle module 100 further includes a limiting assembly 150, which includes a first limiting member 151 and a second limiting member 152. Furthermore, the first bracket 130 includes a body 131 and a bearing portion 132 extending from the body 131, and the second bracket 140 includes a body 141 and a limiting portion 142 extending from the body 141. The first rotating shaft assembly 110 includes a shaft 111, a first gear 112, a first torque source 113 (composed of a plurality of friction pads) and a locking member 114 coaxially disposed, wherein one end of the shaft 111 is disposed on the bearing portion 132, and the other end of the shaft 111 sequentially passes through the limiting portion 142, the first gear 112, the first limiting member 151, the second limiting member 152, and the first torque source 113 to be coupled to the locking member 114, so that the first gear 112 is disposed between the limiting assembly 150 and the limiting portion 142, and when the first bracket 130 and the second bracket 140 relatively rotate in a rotation axis L1, the first torque source 113 provides a torque force required when the shaft 111 rotates. Here, the shaft 111 further has a stop structure 111a, and the limiting portion 142 also has a corresponding stop structure 142a, so that the first bracket 130 and the second bracket 140 can be limited in angle when relatively rotating in the rotation axis direction L1 by the cooperation of the stop structure 111a and the stop structure 142 a.

Furthermore, the second shaft assembly 120 includes a shaft 121, a second gear 122, a second torque source 123 (composed of a plurality of friction pads) and a locking member 124 coaxially disposed with each other, and the shaft 121 is coupled to the locking member 124 through the limiting portion 142, the second gear 122, the first limiting member 151, the second limiting member 152 and the second torque source 123 in sequence, so that the second gear 122 is located between the limiting assembly 150 and the limiting portion 142.

In addition, the switching assembly 160 includes a third gear 161, a button 163 and a spring 162 coaxially disposed with each other, wherein the third gear 161 is limited between the first limiting member 151 and the limiting portion 142 of the limiting assembly 150 opposite to each other, the button 163 is assembled to the third gear 161 and coaxially disposed with the rotation axis of the third gear 161, and the spring 162 abuts between the first limiting member 151 and the button 163 of the limiting assembly 150. Accordingly, the third gear 161 may be regarded as being movably disposed at the second bracket 140 as the button 163 is pressed or not.

It should be noted that, the detailed tooth shapes of the first gear 112, the second gear 122 and the third gear 161 are not shown, but are exemplified by simple wheel shapes, which do not affect the feature descriptions in the present embodiment.

Fig. 3 is a schematic view of another state of the spindle module of fig. 1. Referring to fig. 1 and 3, since the first gear 112, the second gear 122 and the third gear 161 are respectively limited between the limiting component 150 and the limiting portion 142 of the second bracket 140, that is, the first gear 112, the second gear 122 and the third gear 161 are limited on the Y-Z plane to maintain fixed relative positions (i.e., the rotational axis L1 of the first shaft component 110, the rotational axis L2 of the second shaft component 120 and the moving axis L3 of the switching component 160 are maintained at fixed relative positions on the Y-Z plane). In addition, the first gear 112 and the second gear 122 are separated from each other and correspond to each other, and the third gear 161 of the switching assembly 160 will act as a bridge structure for connecting the first gear 112 and the second gear 122.

As shown in fig. 3, in the first mode, the switching assembly 160 is adapted to be coupled to the first shaft assembly 110 and the second shaft assembly 120 by the force F1, so that the first bracket 130 and the second bracket 140 simultaneously rotate relatively through the first shaft assembly 110 and the second shaft assembly 120. In detail, the user provides a force F1 to the button 163 to push the third gear 161 to move in the negative X-axis direction to switch from fig. 1 to fig. 3, and the third gear 161 is coupled (meshed) between the first gear 112 and the second gear 122. In this way, when the first bracket 130 and the second bracket 140 relatively rotate through the first shaft assembly 110, the third gear 161 also achieves the effect that the first gear 112 drives the second gear 122 to rotate, so that the second shaft assembly 120 also rotates, and the second torque source 123 is coupled to the first shaft assembly 110 through the mutual coupling of the second gear 122, the third gear 161 and the first gear 112, so as to be coupled to the first torque source 113. In other words, the first mode of the spindle module 100 can provide a larger torque force due to the interconnection between the first torque force source 113 and the second torque force source 123.

In contrast, when the above-mentioned large torque force is not needed, the user further drives the button 163 (opposite to the above-mentioned force F1) to force the third gear 161 to move towards the positive X-axis direction and away from the first gear 112 and the second gear 122, so that the spindle module 100 is restored from the state of fig. 3 to the state of fig. 1, that is, the first spindle assembly 110 and the second spindle assembly 120 are restored to the state of being separated from each other. Meanwhile, in the state that the spring 162 is deformed (compressed) by the pressing of the button 163 in the first mode, the second mode is released so that the elastic force of the spring 162 can drive the button 163 to return to the third gear 161.

Fig. 4 is a schematic diagram of a portable electronic device suitable for the hinge module. Referring to fig. 1, 3 and 4, in the present embodiment, the portable electronic device 200 includes a first body 210, a second body 220 and a rotating shaft module 100, wherein the first body 210 is, for example, a display screen, the second body 220 is, for example, a host, and the rotating shaft module 100 is connected between the first body 210 and the second body 220, so that the first body 210 and the second body 220 are relatively rotated to open and close by the rotating shaft module 100, and as soon as the rotating shaft module 100 is described above, the structural features thereof will not be repeated.

Unlike the present embodiment, the portable electronic device 200 further includes a third body 230, such as a plug-in screen or other objects that can be mounted on the first body 210, and can be assembled to the first body 210 or disassembled from the first body 210 through a link mechanism 240 (such as a hinge mechanism). Accordingly, in order to enable the first body 210 on which the third body 230 is mounted to rotate and open and close smoothly relative to the second body 220, the portable electronic device 200 of the present embodiment employs the above-mentioned hinge module 100, that is, in the first mode, the switching element 160 is driven to move so as to couple and engage the third gear 161 between the first gear 112 and the second gear 122, and further the first hinge element 110 and the second hinge element 120 generate a linking relationship, so that the torsion of the first torsion source 113 and the torsion of the second torsion source 123 are combined with each other.

In contrast, when the third body 230 is removed from the first body 210, the above-mentioned heavy load is not required for the spindle module 100, so that the spindle module 100 can be switched to the second mode, i.e. the third gear 161 is moved away from the first gear 112 and the second gear 122, and the first spindle assembly 110 and the second spindle assembly 120 are restored to the separated state independent of each other, and the required torque force can be borne by the first spindle assembly 110 only through the relative rotation movement of the first bracket 130 and the second bracket 140.

Fig. 5 is a simplified partial schematic diagram of a hinge module according to another embodiment of the invention, wherein the same parts as the hinge module 100 or the portable electronic device 200 are not described again. Referring to fig. 5, in the present embodiment, the rotation shaft module 400 further includes a driving assembly 170, the driving assembly 170 includes a first part 171 and a second part 172, wherein the second part 172 is rotatably sleeved on the first part 171 and moves along with the first part 171, and the second part 172 is linked to the button 163 of the switching assembly 360. Furthermore, the rotation shaft module 400 is adapted to be disposed in the housing 310 of the portable electronic device, and the driving assembly 170 further includes the guide post 174, the double-tooth track 173 disposed on the housing 310 and coupled to the outer surface of the second component 172, and the part of the first component 171 exposes the housing 310, and as shown in fig. 5, the moving axis of the driving assembly 170, the moving axis of the switching assembly 360 and the rotating axis of the second component 172 are all consistent, which is the moving axis L3.

Based on the above, the first member 171 is adapted to drive the switching assembly 360 via the second member 172 to switch between the first mode and the second mode by the force F1, that is, when the second member 172 moves along the moving axis L3 along with the first member 171, the guiding post 174 abuts against one of the tooth structures of the dual-tooth track 173 to drive the second member 172 to rotate (taking the moving axis L3 as the rotating axis thereof).

In detail, fig. 6A to 6D show schematic views of the corresponding movement of the second part and the guide post of fig. 5, and here, detailed features of the double-tooth track 173 shown in fig. 5 are shown in fig. 6A to 6D for easy recognition. In the present embodiment, the double-tooth track 173 includes a first tooth structure 173a and a second tooth structure 173b opposite to each other across the groove 173c, and the guide post 174 is movably disposed between the first tooth structure 173a and the second tooth structure 173b, so that when the second member 172 reciprocates along the moving axis L3, the guide post 174 can correspondingly abut against the first tooth structure 173a or the second tooth structure 173b, and when the second member 172 moves along the moving axis L3, the second member 172 can rotate along the moving axis L3.

Furthermore, the tooth top A1 and the tooth bottom A2 of the first tooth structure 173a and the tooth bottom B2 and the tooth top B1 of the second tooth structure 173B correspond to each other along the moving axis L3, that is, the tooth top A1 corresponds to the tooth bottom B2, and the tooth bottom A2 corresponds to the tooth top B1, so that the first tooth structure 173a and the second tooth structure 173B are substantially complementary. In this way, when the user applies the force F1 to the first member 171, as in the process of fig. 6A to 6B, the second member 172 is driven to move to the right in the drawing, so that the guide post 174 is relatively moved from the tooth top A1 to the tooth bottom A2 of the first tooth structure 173a, and since the guide post 174 is fixed to the housing 310, the second member 172 is rotated (along the direction D1) about the moving axial direction L3 as its rotation axis, and when the guide post 174 is moved to the tooth bottom A2, the moving axial direction L3 corresponds to the tooth top B1 of the second tooth structure 173B.

In addition, the driving assembly of the present embodiment further includes a spring 175 abutting between the second member 172 and the rib 311 of the housing 310, and the spring 175 is deformed by the abutment of the second member 172 and the rib 311 to accumulate the elastic force due to the movement of the second member 172 during the switching of the switching assembly 360 from the second mode to the first mode. Conversely, once the user removes the force F1, the spring force of the spring 175 will drive the second member 172 to return the switching assembly 360 to the drive assembly 170, thereby switching the switching assembly 360 from the first mode to the second mode. As shown in fig. 6C and 6D, the second member 172 is now moved to the left in the drawing by the spring 175 driving (elastic force F2). The guide post 174 moves from the tooth bottom A2 to the tooth top B1 and then from the tooth top B1 to the tooth bottom B2, thereby driving the second member 172 to continue to rotate in the same direction D1, i.e., the second member 172 rotates in the same direction D1 as shown in fig. 6A to 6D.

In another embodiment, not shown, the spring may also abut between the button 163 of the switching assembly 360 and the second bracket 140 as in the previous embodiment, and the same return effect may be achieved.

Accordingly, one skilled in the art can design the external features and dimensions of the first tooth structure 173a and the second tooth structure 173b to generate a corresponding relationship with the movement stroke of the second member 172, so as to adjust the rotation angle of the second member 172, and even drive the second member 172 to rotate 180 degrees each time.

In summary, in the above embodiments of the present invention, the first rotating shaft assembly and the second rotating shaft assembly are disposed in the rotating shaft module and the portable electronic device using the same, and the switching assembly is further movably disposed between the first rotating shaft assembly and the second rotating shaft assembly, so that when the switching assembly is needed, for example, other objects need to be hung on the body, the user can drive the switching assembly to link the first rotating shaft assembly and the second rotating shaft assembly, and the first body and the second body can provide the torsion required by the body and the hanging object to rotate and open and close together in the process of relatively rotating and opening through the rotating shaft module.

On the contrary, once the external object is removed, the state of the opening and closing of the original pair of machine bodies is restored, so that the user can drive the switching assembly to move away from the first rotating shaft assembly and the second rotating shaft assembly, namely the first rotating shaft assembly and the second rotating shaft assembly are separated from each other and are not linked, and therefore, the rotation opening and closing between the machine bodies can meet the torque force required by the rotation opening and closing of the machine bodies only through a single rotating shaft assembly (namely the first rotating shaft assembly).

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. A spindle module, comprising:

a first bracket;

a second bracket;

the first rotating shaft assembly is arranged on the second bracket and is connected with the first bracket;

the second rotating shaft assembly is arranged on the second bracket and is separated from the first rotating shaft assembly; and

and a switching assembly movably disposed between the first and second shaft assemblies, wherein in a first mode the switching assembly is adapted to be forced to couple the first and second shaft assemblies such that the first and second brackets are simultaneously relatively rotated by the first and second shaft assemblies, and in a second mode the switching assembly is adapted to be forced to move away from the first and second shaft assemblies such that the first and second brackets are relatively rotated by the first shaft assembly only, the first shaft assembly having a first gear, the second shaft assembly having a second gear, and the switching assembly having a third gear, in the first mode the third gear being coupled to the first and second gears, and in the second mode the third gear being moved away from the first and second gears.

2. The spindle module of claim 1, wherein the first spindle assembly has a first torque source and the second spindle assembly has a second torque source, and in the first mode, torque generated by the second torque source is transferred to the first spindle assembly through the mutual coupling of the second gear, the third gear, and the first gear to combine with torque generated by the first torque source.

3. The spindle module of claim 1, wherein the switching assembly further comprises:

the button is connected with the third gear and is coaxially arranged with the rotating shaft of the third gear; and

a spring abutting between the second bracket and the button, in the first mode, the button is adapted to be forced to move the third gear to couple between the first gear and the second gear and deform the spring, and in the second mode, the button is adapted to be forced to move the third gear away from the first gear and the second gear.

4. The spindle module of claim 1, wherein the third gear is movably disposed on the second bracket.

5. The spindle module of claim 1, further comprising:

and the limiting assembly is arranged opposite to the limiting part of the second bracket, and the first gear, the second gear and the third gear are respectively positioned between the limiting assembly and the limiting part.

6. The spindle module of claim 1, wherein an axial direction of the first spindle assembly, an axial direction of the second spindle assembly, and a moving axial direction of the switching assembly are different from one another in parallel.

7. The spindle module of claim 1, further comprising:

the driving assembly comprises a first component and a second component, the second component is rotatably sleeved on the first component and moves along with the first component, the second component is connected with the switching assembly, the first component is suitable for being stressed to drive the switching assembly to switch between the first mode and the second mode through the second component, and the moving axial direction of the driving assembly, the moving axial direction of the switching assembly and the rotating axial direction of the second component are consistent.

8. The hinge module according to claim 7, wherein the driving assembly further comprises a guide post disposed in the housing, and the outer surface of the second member has a double-tooth track, the guide post being coupled to the double-tooth track, and when the second member moves with the first member, the guide post abuts against one of the double-tooth tracks to drive the second member to rotate.

9. The spindle module of claim 8, wherein the drive assembly further comprises a spring that abuts between the second component and the housing or between the switching assembly and the second bracket, the spring being deformed under force during switching of the switching assembly from the second mode to the first mode, the spring resetting the switching assembly and the drive assembly during switching of the switching assembly from the first mode to the second mode.

10. The spindle module of claim 9, wherein the guide post abuts a first tooth structure of the double-tooth track to drive the second component to move and rotate in a direction during the rotation of the second component, and wherein the guide post abuts a second tooth structure of the double-tooth track to drive the second component to rotate in the direction during the spring return of the drive assembly.

11. The spindle module of claim 10, wherein the first and second tooth arrangements are disposed opposite each other along an axial direction of reciprocation of the second member, the guide post being movably located between the first and second tooth arrangements.

12. A portable electronic device, comprising:

a first body;

a second body;

the third machine body is detachably assembled on the first machine body;

at least one rotating shaft module comprising:

the first bracket is arranged on the first machine body;

the second bracket is arranged on the second machine body;

and the switching component is movably arranged between the first rotating shaft component and the second rotating shaft component, wherein in a first mode, the third machine body is assembled to the first machine body, the switching component is suitable for being coupled with the first rotating shaft component and the second rotating shaft component by stress so as to enable the first machine body and the second machine body to be opened and closed by relative rotation through the first rotating shaft component and the second rotating shaft component at the same time, in a second mode, the third machine body is removed from the first machine body, and the switching component is suitable for being moved away from the first rotating shaft component and the second rotating shaft component by stress so as to enable the first machine body and the second machine body to be opened and closed by relative rotation through the first rotating shaft component only.

13. The portable electronic device of claim 12, wherein the first shaft assembly has a first gear, the second shaft assembly has a second gear, and the switching assembly has a third gear, the third gear coupling the first gear and the second gear in the first mode, the third gear moving away from the first gear and the second gear in the second mode.

14. The portable electronic device of claim 13, wherein the first shaft assembly has a first torque source and the second shaft assembly has a second torque source, the second torque source being transferred to the first shaft assembly through the mutual coupling of the second gear, the third gear, and the first gear in the first mode to couple the first torque source.

15. The portable electronic device of claim 13, wherein the switching assembly further comprises:

16. The portable electronic device of claim 13, wherein the third gear is movably disposed on the second bracket.

17. The portable electronic device of claim 13, wherein the hinge module further comprises:

18. The portable electronic device of claim 12, wherein an axial direction of the first shaft assembly, an axial direction of the second shaft assembly, and a moving axial direction of the switching assembly are parallel to each other without overlapping.

19. The portable electronic device of claim 12, wherein the hinge module further comprises:

20. The portable electronic device of claim 19, further comprising a housing, wherein the driving assembly further comprises a guide post disposed on the housing, and the outer surface of the second member has a double-tooth track, the guide post is coupled to the double-tooth track, and when the second member moves with the first member, the guide post abuts against one of the double-tooth tracks to drive the second member to rotate.

21. The portable electronic device of claim 20, wherein the drive assembly further comprises a spring that abuts between the second component and the housing or between the switch assembly and the second bracket, the spring being deformed under force during switching of the switch assembly from the second mode to the first mode, the spring resetting the switch assembly and the drive assembly during switching of the switch assembly from the first mode to the second mode.

22. The portable electronic device of claim 21, wherein during the rotation of the second member, the guide post abuts the first tooth structure of the bi-tooth track to drive the second member to move and rotate in a direction, and during the spring return of the drive assembly, the guide post abuts the second tooth structure of the bi-tooth track to drive the second member to rotate in the direction.

23. The portable electronic device of claim 22, wherein the first tooth structure and the second tooth structure are disposed opposite each other along an axial direction of reciprocation of the second member, the guide post being movably disposed between the first tooth structure and the second tooth structure.