CN117419097A - Hinge mechanisms and foldable devices - Google Patents

Abstract

The application provides a spindle mechanism and a foldable device. Relates to the technical field of electronic products. The rotating shaft mechanism comprises: the first connecting piece, the second connecting piece and the first damping component. The first connecting piece is provided with a first sliding part, the second connecting piece is provided with a second sliding part, the second sliding part is connected with the first sliding part in a sliding mode and can rotate around a first virtual axis relative to the first sliding part, the first virtual axis is located outside the second sliding part and the first sliding part, the first damping component comprises a first gear, a second gear and a first damping structure, the first gear is rotatably connected with the first connecting piece, the second gear is fixed on the second connecting piece and meshed with the first gear, and the first damping structure is connected between the first gear and the first connecting piece and used for providing damping force for relative rotation of the first gear and the first connecting piece. According to the rotating shaft mechanism, the folding body can be reliably supported, and stability is good.

Description

Hinge mechanisms and foldable devices

Technical field

The present application relates to the technical field of electronic products, and in particular to a rotating shaft mechanism and a foldable device.

Background technique

The hinge mechanism is a key component for opening and folding foldable devices such as laptops. Its main function is to connect different folding bodies of the foldable device so that the foldable device can switch between the open state and the folded state. Taking a laptop as an example, the hinge mechanism is mainly used to connect the monitor and keyboard host of the laptop, and provides support for the monitor through the rotational damping generated by the hinge mechanism itself during use.

The rotating shaft mechanism in the related art has poor support for the display and is unstable. During the use of a laptop computer, unnecessary rotation of the monitor may easily occur, affecting the user experience.

Contents of the invention

This application provides a rotating shaft mechanism and a foldable device. The rotating shaft mechanism has good support stability.

In order to achieve the above purpose, this application adopts the following technical solutions:

In a first aspect, this application provides a rotating shaft mechanism, including: a first connecting piece, a second connecting piece and a first damping component. The first connecting piece is provided with a first sliding part, and the second connecting piece is provided with a second sliding part. The second sliding part is slidingly connected to the first sliding part and can rotate relative to the first sliding part around the first virtual axis. , the first virtual axis is located outside the second sliding part and the first sliding part, the first damping assembly includes a first gear, a second gear and a first damping structure, the first gear is rotatably connected to the first connecting piece, The second gear is fixed to the second connecting piece and meshes with the first gear. The first damping structure is connected between the first gear and the first connecting piece to provide damping for the relative rotation of the first gear and the first connecting piece. force.

According to the rotating shaft mechanism of the embodiment of the present application, the dual effects of the meshing cooperation of the first gear and the second gear and the first damping structure providing damping force for the relative rotation of the first gear and the first connecting member can be used to perform the folding operation on the folding body. Reliable support and good stability avoid the rotation of the folding body due to gravity, improving the user experience.

In some embodiments of the first aspect of the present application, the first damping structure includes an elastic member, and the elastic member is in contact between the first gear and the first connecting member. Therefore, the elastic member has good elastic deformation ability, and the elastic deformation ability of the elastic member is used to provide a damping force for the rotation of the second connecting member relative to the first connecting member, thus achieving high reliability.

In some embodiments of the first aspect of the application, the first connecting member includes two fixed plates, the two fixed plates are arranged oppositely along the extension direction of the first virtual axis, and the second connecting member is between the two fixed plates; A damping assembly also includes a connecting rod, which is connected between two fixed plates. The first gear is located between the two fixed plates and is wrapped around the connecting rod; wherein the first gear is arranged on at least one side in the axial direction. There is an elastic member, which is wrapped around the connecting rod and abuts between the first gear and the fixed plate on the same axial side of the first gear as the elastic member. Therefore, the structure is simple.

In some embodiments of the first aspect of the present application, the fixed plates are provided with mounting holes, and the connecting rods are sequentially passed through the mounting holes on the two fixed plates; the first damping component also includes two adjusting nuts, and two adjusting nuts. Corresponding to the two fixed plates one by one, each adjusting nut is located on the side of the corresponding fixed plate away from the other fixed plate and is threadedly matched with the connecting rod. By rotating the adjusting nut, the pretightening force of the elastic member is adjusted, and then the initial rotational damping provided by the rotating shaft mechanism is adjusted, thereby meeting the needs of different damping scenarios and having a wide range of applications.

In some embodiments of the first aspect of the application, elastic members are respectively arranged on both sides of the first gear in the axial direction. This is beneficial to improving the symmetry of the force on the first gear.

In some embodiments of the first aspect of the present application, the first gear is fixed to the connecting rod, and the connecting rod is rotatably connected to the two fixed plates. Therefore, the structure is simple.

In some embodiments of the first aspect of the present application, the first connecting member includes two fixed plates, the two fixed plates are arranged oppositely along the extension direction of the first virtual axis, and the second connecting member is between the two fixed plates;

The first damping component also includes a connecting rod, which is connected between two fixed plates. The first gear is located between the two fixed plates and is sleeved on the connecting rod.

In some embodiments of the first aspect of the present application, the second connecting member includes an arc-shaped plate, the arc-shaped plate is located on the outer periphery of the first gear, the center line of the arc-shaped plate is collinear with the first virtual axis, and the back of the arc-shaped plate A plurality of first tooth portions are formed on the surface of the first virtual axis. The plurality of first tooth portions are sequentially arranged along the extending direction of the arc plate. The arc plate and the plurality of first tooth portions define a second gear. In this way, the structure of the second gear is simple, easy to process and manufacture, and the problems of increased cost and complicated structure caused by setting up an additional second gear are avoided.

In some embodiments of the first aspect of the application, the first sliding part is a first arc-shaped hole formed on the first connecting piece, and the second sliding part is a rib formed on the second connecting piece; or, One sliding part is a convex rib formed on the first connecting piece, and the second sliding part is a first arc-shaped hole formed on the second connecting piece; wherein, the convex rib fits in the first arc-shaped hole. As a result, not only can the relative sliding of the second connecting piece and the first connecting piece be realized, and the rotation of the second connecting piece around the first virtual axis be realized, but also the cooperation of the first arc-shaped hole and the convex rib can be used to create the second connecting piece. The movement of the connecting piece plays a guiding role, improving the reliability of the movement of the second connecting piece. The structure is simple, easy to process and manufacture, and is beneficial to reducing manufacturing costs.

In some embodiments of the first aspect of the application, the first connecting member includes two fixed plates, the two fixed plates are arranged oppositely along the extension direction of the first virtual axis, and the second connecting member is between the two fixed plates; each Each fixed plate is provided with a first sliding part, and a second sliding part is respectively formed at both ends of the second connecting member along the extending direction of the first virtual axis. Along the extending direction of the first virtual axis, a second sliding part is formed. The second sliding part and the first sliding part on the same side of the two connecting parts match correspondingly. In this way, the reliability of the relative movement between the second connecting member and the first connecting member is improved.

In some embodiments of the first aspect of the present application, the second connecting piece is provided with a third sliding part, the rotating shaft mechanism further includes a third connecting piece, the third connecting piece is provided with a fourth sliding part, and the fourth sliding part slides Connected to the third sliding part and capable of rotating around a first virtual axis relative to the third sliding part, the first virtual axis is located outside the fourth sliding part and the third sliding part; the rotating shaft mechanism has a fully open state, and in the fully open state , the first connecting piece and the third connecting piece are at both ends of the second connecting piece along the circumferential direction of the reference cylinder, wherein the cylinder with the first virtual axis as the center line is the reference cylinder. Therefore, the provision of the third connecting member, when the rotating shaft mechanism is used in a foldable device, is conducive to increasing the maximum opening and closing angle of the foldable device to meet the different usage needs of users.

In some embodiments of the first aspect of the application, the third sliding part is a connecting shaft provided on the second connecting piece, and the fourth sliding part is a second arc-shaped hole formed on the third connecting piece; or, The third sliding part is a second arc-shaped hole provided on the second connecting piece, and the fourth sliding part is a connecting shaft formed on the third connecting piece; wherein, the connecting shaft fits in the second arc-shaped hole. By using the second arc-shaped hole and the connecting shaft to cooperate, not only can the relative sliding of the third connecting piece and the second connecting piece be realized, and the rotation of the third connecting piece around the first virtual axis, but also the second circular arc hole can be used. The cooperation between the arc hole and the connecting shaft guides the movement of the third connecting member, improves the reliability of the movement of the third connecting member, has a simple structure, is easy to process and manufacture, and is conducive to reducing manufacturing costs.

In some embodiments of the first aspect of the present application, the second connecting member includes two side plates, the two side plates are arranged oppositely along the extension direction of the first virtual axis, and the third connecting member is located between the two side plates; each A third sliding part is provided on each side plate. A fourth sliding part is respectively formed at both ends of the third connecting member along the extending direction of the first virtual axis. The third sliding part is located along the extending direction of the first virtual axis. The third sliding part and the fourth sliding part on the same side of the connecting piece are correspondingly matched. In this way, the reliability of the relative movement between the third connecting member and the second connecting member is improved.

In some embodiments of the first aspect of the application, the rotating shaft mechanism further includes a second damping component, and the second damping component is used to provide damping force for the relative movement of the third connecting member and the second connecting member.

In some embodiments of the first aspect of the application, the second damping assembly includes a third gear, a fourth gear and a second damping structure. The third gear is rotatably connected to the second connecting member, and the fourth gear is fixed to the third gear. The connecting piece is meshed with the third gear, and the second damping structure is connected between the third gear and the second connecting piece to provide damping force for the relative rotation of the third gear and the second connecting piece. Utilizing the meshing cooperation between the fourth gear and the third gear, and the second damping structure to provide damping force for the relative rotation of the third gear and the second connecting member, the display can be reliably supported, the stability is good, and the display is prevented from being damaged due to The rotation caused by gravity improves the user experience.

In some embodiments of the first aspect of the present application, the second damping structure includes a connecting shaft and a shaft hole formed in the second connecting piece, the third gear is fixed to the connecting shaft, the connecting shaft is interference-fitted in the shaft hole, and is relative to the connecting shaft. The shaft hole can be rotated.

In some embodiments of the first aspect of the application, the second connecting member includes two side plates, the two side plates are arranged oppositely along the extension direction of the first virtual axis, and the third gear is located between the two side plates, each The side plates are provided with shaft holes, each shaft hole is fitted with a connecting shaft, and the third gear is fixed between the connecting shafts of the two side plates.

In some embodiments of the first aspect of the present application, the third connecting member is between the two side plates and includes two oppositely arranged connecting plates. The two connecting plates are arranged oppositely along the extension direction of the first virtual axis. The three gears are located between the two connecting plates; the fourth sliding part is a second arc-shaped hole penetrating the connecting plate along the thickness direction of the connecting plate, and the third sliding part is a connecting shaft passing through the second arc-shaped hole. In this way, on the one hand, due to the interference fit between the connecting shaft and the shaft hole, friction can be generated between the connecting shaft and the shaft hole, so that when the third gear fixed to the connecting shaft rotates, the third gear rotates relative to the connecting shaft. The rotation of the second link provides the damping force. On the other hand, the connecting shaft can not only cooperate with the shaft hole to play a damping role, but also can slide and rotate with the fourth sliding part, which is beneficial to simplifying the structure of the rotating shaft mechanism and improving the structural compactness of the rotating shaft mechanism.

In some embodiments of the first aspect of the application, the third connecting member includes an arc plate. The arc plate is located on the outer periphery of the third gear. The center line of the arc plate is collinear with the first virtual axis. The direction of the arc plate is A plurality of second tooth portions are formed on the surface of the first virtual axis. The plurality of second tooth portions are sequentially distributed in the circumferential direction of the arc plate. The arc plate and the plurality of second tooth portions define a fourth gear. Therefore, the structure is simple.

In some embodiments of the first aspect of the present application, the side plate has a notch, and the notch is located on a circumferential side of the shaft hole and communicates with the shaft hole. This facilitates the installation of the connecting shaft and the shaft hole.

In a second aspect, this application provides a foldable device, including: a rotating shaft mechanism, a first folding body and a second folding body. The rotating shaft mechanism is the rotating shaft mechanism in any of the above technical solutions; the first folding body is fixedly connected to the first connecting piece; the second folding body is connected to the second connecting piece.

In some embodiments of the second aspect of the present application, the rotating shaft mechanism is the above-mentioned rotating shaft mechanism including a third connecting member, and the third connecting member is fixedly connected to the second folding body.

In some embodiments of the second aspect of the present application, the foldable device is a notebook computer, wherein the first folding body is a keyboard host and the second folding body is a display.

In some embodiments of the second aspect of the present application, the keyboard host includes a housing, a keyboard and a signal interface. The housing includes a first part and a second part. The second part is located on the circumferential side of the first part and is connected to the first part. The keyboard Installed on the first part, the thickness of the second part is greater than the thickness of the first part, the signal interface is located in the second part, and the wall plate of the second part facing away from the first part has an insertion opening directly opposite the signal interface; the foldable device has In the folded state, the display is stacked with the first part, and the display is on a side of the second part close to the first part. Since the thickness of the signal interface is relatively large, by setting the thickness of the second part to be greater than the thickness of the first part and installing the signal interface inside the second part, it is beneficial to use the thicker second part to fully accommodate the signal. interface. Moreover, when the foldable device is in the folded state, the display is stacked with the first part and is on the side of the second part close to the first part. Therefore, the display and the signal interface can be distributed in the direction of the display surface, which is consistent with the signal The interface is arranged in the first part, and in the folded state, the display and the signal interface overlap in the thickness direction of the foldable device, which is beneficial to reducing the overall thickness of the foldable device in the folded state.

In some possible implementations, in the folded state, a surface of the display facing away from the first part and a surface of the second part facing the same direction as the keyboard surface of the first part are flush. In this way, the thickness of the foldable device can be reduced and the appearance of the foldable device can be optimized to prevent scratches on the display.

In some embodiments of the second aspect of the present application, the first connecting member is fixed in the housing, and the wall plate of the first part for installing the keyboard is provided with an escape hole, and the escape hole is between the keyboard and the second part, and the escape hole is The hole extends to the edge of the second part, and the avoidance hole is used to avoid the second connecting piece and the third connecting piece. In this way, the fixed connection between the third connecting member and the display can be facilitated.

Description of the drawings

Figure 1 is a schematic structural diagram of a foldable device provided by some embodiments of the present application;

Figure 2 is a schematic diagram of the foldable device shown in Figure 1 in a folded state;

Figure 3 is a perspective view of the keyboard host shown in Figure 1;

Figure 4 is an exploded schematic view of the foldable device shown in Figure 1;

Figure 5 is a schematic cross-sectional structural diagram of the foldable device shown in Figure 1 at line A-A;

Figure 6 is an enlarged view of the portion circled at C according to the rotating shaft mechanism shown in Figure 5;

Figure 7 is a perspective view of the rotating shaft mechanism shown in Figures 1-6, wherein the rotating shaft mechanism is in a folded state;

Figure 8 is a schematic diagram of the changes of the rotating shaft mechanism shown in Figure 7 in the folded state and the fully opened state;

Figure 9 is an exploded view of the rotating shaft mechanism shown in Figure 7;

Figure 10 is a schematic diagram of the assembly of the second connecting piece and the third sliding part shown in Figure 9;

Figure 11 is a perspective view of the rotating shaft mechanism from another perspective shown in Figure 7;

Figure 12 is a schematic diagram of a rotating shaft mechanism provided by other embodiments of the present application.

Detailed ways

In the embodiments of this application, the terms "exemplarily" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "such as" in the embodiments of the present application is not to be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a concrete manner.

In the description of the embodiments of this application, the term "and/or" refers to and encompasses any and all possible combinations of one or more of the associated listed items. The term "and/or" is an association relationship that describes related objects, indicating that there can be three relationships. For example, A and/or B can mean: A alone exists, A and B exist simultaneously, and B alone exists. situation. In addition, the character "/" in this application generally indicates that the related objects are an "or" relationship.

In the description of the embodiments of this application, unless otherwise expressly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, "connection" can be detachably connected, or it can be detachably connected. Non-detachably connected; either directly or indirectly through an intermediary.

In the description of the embodiments of the present application, the terms "comprising", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or device that includes that element. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or device that includes that element.

As used herein, "parallel," "perpendicular," and "equal" include the stated conditions as well as approximations to the stated conditions within the range of acceptable deviations in which the stated conditions may Acceptable deviation ranges are as determined by one of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (ie, the limitations of the measurement system). For example, "parallel" includes absolutely parallel and approximately parallel, and the acceptable deviation range of approximately parallel can be, for example, a deviation within ±10°; "perpendicular" includes absolutely vertical and approximately vertical, and the acceptable deviation range of approximately vertical can also be, for example, The deviation is within ±10°. "Equal" includes absolute equality and approximate equality, wherein the difference between the two that may be equal within the acceptable deviation range of approximately equal is less than or equal to 5% of either one, for example.

This application provides a foldable device with a rotating shaft mechanism. The foldable device includes, but is not limited to, notebook computers, mobile phones, laptop computers, personal digital assistants (personal digital assistants, PDAs), personal computers, vehicle-mounted equipment and other electronic devices. The foldable device can also be a combination of any of the above-mentioned electronic devices and electronic device accessories (such as mobile phone holders, tablet computer holders, selfie sticks, protective cases, etc.).

Please refer to FIG. 1 , which is a schematic structural diagram of a foldable device 100 provided by some embodiments of the present application. In this embodiment, the foldable device 100 is a notebook computer. The foldable device 100 includes a display 1 (also called a screen side), a keyboard host 2 (also called a system side), and a hinge mechanism 3 .

It should be noted that FIG. 1 only schematically shows some components included in the foldable device 100, and the actual shapes, actual sizes, actual positions and actual structures of these components are not limited by FIG. 1 .

Display 1 is used to display images, videos, etc. The display 1 may constitute the second foldable body of the foldable device 100 . The display 1 includes a display screen 11 and a back shell 12 . The display screen 11 may be a flexible display screen or a rigid display screen. The back shell 12 is used to protect the display screen 11 . The back shell 12 can cover the edges of the display screen 11 and the back of the display screen 11 .

The keyboard host 2 is used to input instructions and data, and controls the display 1 to display images and videos based on the input instructions and data. At the same time, the keyboard host 2 is also used to play voice or music. The keyboard host 2 may constitute the first foldable body of the foldable device 100 .

The keyboard host 2 and the display 1 are rotatably connected. The rotatable connection between the keyboard host 2 and the display 1 enables the foldable device 100 to switch between an open state and a folded state. The open state of the foldable device 100 includes a fully open state and an intermediate open state.

When the foldable device 100 is in a fully open state, please continue to refer to FIG. 1 , and the angle α between the display 1 and the keyboard host 2 is the maximum opening and closing angle. The maximum opening and closing angle is greater than 0° and less than 360°. The "maximum opening and closing angle" refers to the angle α between the display 1 and the keyboard host 2 when they are opened to the extreme state. Specifically, the maximum opening and closing angle may range from 90° to 200°. For example, the value of the maximum opening and closing angle can be 90°, 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130°, 135°, 140°, 145°, 150 °, 155°, 160°, 165°, 170°, 175°, 180°, 182°, 185°, or 190°.

It should be noted that the “angle α between the keyboard host 2 and the display 1 ” in the embodiment of the present application refers to the angle between the display surface A2 of the display 1 and the keyboard surface A1 of the keyboard host 2 .

Please refer to FIG. 2 , which is a schematic diagram of the foldable device 100 shown in FIG. 1 in a folded state. When the foldable device 100 is in a folded state, the display 1 and the keyboard host 2 are stacked. The display surface A2 of the display 1 is opposite to the keyboard surface A1 of the keyboard host 2 . At this time, the opening and closing angle of the display 1 and the keyboard host 2 is approximately 0 degrees. In this state, the volume of the foldable device 100 can be reduced, making it easy to store and carry, and the display interface of the display 1 and the keyboard surface A1 of the keyboard host 2 can be protected against scratches and dust.

It is worth understanding that, unlike the fully open state, there is an intermediate open state between the keyboard host 2 and the display 1 . In the middle open state, the angle between the display 1 and the keyboard host 2 is less than the maximum opening and closing angle and greater than 0° in the folded state. The intermediate open state is on a switching path for the foldable device 100 to switch between the folded state and the fully open state. It can be understood that the intermediate open state is not only a unique state, but can be any state on the switching path of the foldable device switching between the folded state and the fully open state.

In order to facilitate the description of each embodiment below, an XYZ coordinate system is established for the keyboard host 2 . Specifically, the extension direction of the rotation axis of the keyboard host 2 and the display 1 is defined as the X-axis direction, the thickness direction of the keyboard host 2 is the Z-axis direction, and the direction perpendicular to both the X-axis direction and the Z-axis direction is the Y-axis direction. It can be understood that the coordinate system setting of the keyboard host 2 can be flexibly set according to actual needs, and is not specifically limited here.

Please continue to refer to FIG. 1 . The keyboard host 2 includes a housing 21 and a keyboard 22 .

The housing 21 is used as a supporting "skeleton" of the keyboard host 2 to support and fix the keyboard 22 and circuit devices (not shown) provided in the housing 21 . The circuit components include but are not limited to circuit boards and the like.

The keyboard 22 is installed on the housing 21 . Exemplarily, the connection method between the keyboard 22 and the housing 21 includes but is not limited to gluing, welding, snapping, riveting or screw connection. Instructions, data, etc. can be input to the keyboard host 2 with the help of the keyboard 22 .

Please continue to refer to FIGS. 1 and 2 , the housing 21 includes a first part 211 and a second part 212 .

Among them, the keyboard 22 is installed on the first part 211. In this way, the keyboard surface A1 is located on the first part 211. The second part 212 is located on the circumferential side of the first part 211 and is connected to the first part 211 . Specifically, in the specific example shown in FIG. 1 , the second part 212 and the first part 211 are arranged in the Y-axis direction and connected.

When the foldable device 100 is in the folded state, the display 1 and the first part 211 are stacked, and the entire display 1 is located on a side of the second part 212 close to the first part 211 . That is, the display 1 is not stacked with the second part 212 .

On this basis, for example, in order to reduce the thickness of the foldable device 100 and optimize the appearance of the foldable device 100 and prevent the display 1 from scratching, in the folded state, the surface of the display 1 facing away from the display surface A2 (that is, the surface facing away from the first part 211), and the surface on the second part 212 that is aligned with the keyboard surface A1.

In other examples, in the folded state, the surface of the display 1 facing away from the display surface A2 and the surface of the second part 212 that is in the same direction as the keyboard surface A1 may not be flush. For example, in the folded state, the surface of the display 1 facing away from the display surface A2 is concave to the surface of the second part 212 that faces the keyboard surface A1. In this way, in the folded state, the surface of the second part 212 that is aligned with the keyboard surface can be used. The surface of A1 facing the same direction plays a protective role for the display 1 . For another example, in the folded state, the surface of the display 1 facing away from the display surface A2 protrudes from the surface of the second part 212 that is oriented in the same direction as the keyboard surface A1.

When the foldable device 100 is in a fully open state, the entire display 1 is located on the side of the second part 212 facing the surface that is consistent with the direction of the keyboard surface A1. That is, the display 1 and the second part 212 are arranged in the Z direction.

Continuing to refer to FIGS. 1 and 2 , the thickness of the second part 212 is greater than the thickness of the first part 211 . Specifically, the surface of the second part 212 that is aligned with the keyboard surface A1 protrudes from the first part 211 .

Please refer to FIG. 3 , which is a perspective view of the keyboard host 2 shown in FIG. 1 . The foldable device 100 also includes a signal interface 23 . The signal interface 23 is located in the second part 212 and is electrically connected to the above-mentioned circuit board. Exemplarily, the connection method between the signal interface 23 and the second part 212 includes but is not limited to snap connection, welding or screw connection.

An insertion opening 2121 facing the signal interface 23 is provided on the wall of the second part 212 facing away from the first part 211 . Since the Z-direction size of the signal interface 23 is relatively large, by setting the thickness of the second part 212 to be greater than the thickness of the first part 211 and installing the signal interface 23 inside the second part 212, it is beneficial to utilize the thicker second part 212. Portion 212 is provided to fully accommodate the signal interface 23 . Moreover, when the foldable device 100 is in the folded state, the display 1 and the first part 211 are stacked and located on the side of the second part 212 close to the first part 211. Therefore, the display 1 and the signal interface 23 do not overlap in the XY direction. This Compared with arranging the signal interface 23 in the first part 211 and having the display 1 and the signal interface 23 overlap in the XY direction in the folded state, it is beneficial to reduce the overall thickness of the foldable device 100 in the folded state.

Of course, the application is not limited to this. In other examples, the thickness of the first part 211 and the second part 212 may be equal, or the thickness of the first part 211 may be greater than the thickness of the second part 212 . In addition, the signal interface 23 may not be disposed in the second part 212 but may be disposed in the first part 211 .

The rotating shaft mechanism 3 is used to connect the keyboard host 2 and the display 1 so that the keyboard host 2 and the display 1 are rotationally connected. Specifically, the keyboard host 2 and the display 1 can realize relative rotation through the rotating shaft mechanism 3, so that the foldable device 100 can switch between the fully opened state and the folded state, thereby realizing the opening or folding of the foldable device 100.

Please refer to FIGS. 4, 5 and 6. FIG. 4 is an exploded schematic diagram of the foldable device 100 shown in FIG. 1, and FIG. 5 is a schematic cross-sectional structural diagram of the foldable device 100 shown in FIG. 1 along line A-A. FIG. 6 is an enlarged view of the portion circled at C of the rotating shaft mechanism 3 shown in FIG. 5 . The rotating shaft mechanism 3 is connected between the outer shell 21 and the back shell 12 .

In some embodiments, there are two rotating shaft mechanisms 3. The two rotating shaft mechanisms 3 are arranged side by side and spaced apart along the X direction, and the two rotating shaft mechanisms 3 are arranged symmetrically to ensure the stability of the connection between the keyboard host 2 and the display 1. At the same time The rotational stability of the foldable device 100 is ensured. In other embodiments, there may be only one rotating axis mechanism 3 . In this case, the rotating axis mechanism 3 may be located in the middle area of the keyboard host 2 in the X direction to ensure the rotational stability of the foldable device 100 . In other embodiments, there may be more than two rotating shaft mechanisms 3 , and the number of rotating shaft mechanisms 3 is not specifically limited in this application.

Please refer to FIG. 6 together with FIG. 7 . FIG. 7 is a perspective view of the rotating shaft mechanism 3 shown in FIGS. 1 to 6 , in which the rotating shaft mechanism 3 is in a folded state. The rotating shaft mechanism 3 includes a first connecting member 31 , a second connecting member 32 , a third connecting member 33 , a first damping component 34 and a second damping component 35 .

The first connecting member 31 is used for fixed connection with the keyboard host 2 (that is, the first folding body). Specifically, the first connecting member 31 can be fixed in the housing 21 . For example, a part of the first connecting member 31 may be fixed in the second part 212 , and the remaining part of the first connecting member 31 may be located in the first part 211 . In other examples, the first connecting member 31 may also be completely fixed in the first part 211 .

The first connecting piece 31 is used as a supporting "skeleton" of the rotating shaft mechanism 3 to support the second connecting piece 32 and the third connecting piece 33 .

The first connecting member 31 is provided with a first sliding part 314 .

The second connecting member 32 is connected to the display 1 . The second connecting member 32 is provided with a second sliding part 323 . The second sliding part 323 is slidingly connected to the first sliding part 314 . The second sliding part 323 is rotatable around the first virtual axis o1 relative to the first sliding part 314. The extension direction of the first virtual axis o1 is the X-axis direction. The first virtual axis o1 is the rotation axis of the display 1 and the keyboard host 2 . The first virtual axis o1 is located outside the first sliding part 314 and outside the second sliding part 323 . In this way, the second connecting member 32 can be switched between the first position and the second position relative to the first connecting member 31 , so that the second connecting member 32 and the first connecting member 31 are aligned with the first virtual axis as a whole. The virtual circle with o1 as the center line expands and contracts in the circumferential direction to facilitate folding and unfolding of the foldable device 100 .

It is worth understanding that "the first virtual axis o1 is located outside the first sliding part 314 and outside the second sliding part 323" means that the first virtual axis o1 does not intersect with the first sliding part 314 and does not intersect with the first sliding part 314. The second sliding portion 323 also does not intersect.

Please continue to refer to FIG. 6 and FIG. 7 . The third connecting member 33 is used to realize the connection between the second connecting member 32 and the display 1 . That is, the second connecting member 32 can be connected to the display 1 through the third connecting member 33 .

Specifically, the third connecting member 33 is used for fixed connection with the display 1 (that is, the second folding body). In other examples, the rotating shaft mechanism 3 may not include the third connecting member 33 , in which case the second connecting member 32 is fixedly connected to the display 1 .

In order to facilitate the fixed connection between the third connecting member 33 and the display 1 . The wall plate of the first part 211 for installing the keyboard 22 is provided with an escape hole 2122 . The escape hole 2122 is located between the keyboard 22 and the second portion 212 . The escape hole 2122 extends to the edge of the second portion 212 . The escape hole 2122 is used to avoid the second connecting member 32 and the third connecting member 33 (see FIG. 4 ).

The third connecting member 33 includes an extension section 338 . The extension section 338 is located on the outside of the housing 21 . The extension section 338 can be fixed inside the back case 12 . The fixing method between the extension section 338 and the back shell 12 includes but is not limited to gluing, welding, riveting, snapping or screw connection.

The second connecting member 32 is provided with a third sliding part 324 . The third connecting member 33 is provided with a fourth sliding part 333 . The fourth sliding part 333 is slidingly connected to the third sliding part 324. The fourth sliding part 333 is rotatable around the first virtual axis o1 relative to the third sliding part 324. The first virtual axis o1 is located outside the third sliding part 324 and outside the fourth sliding part 333 . In this way, the third connecting member 33 can be switched between the third position and the fourth position relative to the second connecting member 32 , so that the third connecting member 33 and the second connecting member 32 are aligned along the first virtual axis as a whole. The virtual circle with o1 as the center line expands and contracts in the circumferential direction to facilitate folding and unfolding of the foldable device 100 .

It is worth understanding that "the first virtual axis o1 is located outside the third sliding part 324 and outside the fourth sliding part 333" means that the first virtual axis o1 does not intersect with the third sliding part 324 and does not intersect with the third sliding part 324. The fourth sliding portion 333 also does not intersect.

The following describes the change process of the rotating shaft mechanism 3 between the folded state and the fully opened state.

Please refer to FIG. 8 , which is a schematic diagram of the changes of the rotating shaft mechanism 3 shown in FIG. 7 between the folded state and the fully opened state. It is defined that the cylinder with the first virtual axis o1 as the center line and the minimum distance between the first virtual axis o1 and the fourth sliding part 333 as the radius is the reference cylinder Y.

As shown in (a) of Figure 8, the rotating shaft mechanism 3 is in a folded state. In the folded state, the second connecting member 32 is in a first position relative to the first connecting member 31 and the third connecting member 33 is in a third position relative to the second connecting member 32. At this time, the first connecting member 31 and the second connecting member 33 are in a third position. The connecting piece 32 and the third connecting piece 33 are folded together. The first connecting member 31, the second connecting member 32 and the third connecting member 33 are distributed in the X-axis direction. The entire rotating shaft mechanism 3 has the smallest size in the circumferential direction of the reference cylinder Y.

For example, the size of the rotating axis mechanism 3 in the circumferential direction of the reference cylinder Y can be understood in this way, as shown in (a) in Figure 8 , along the circumferential direction of the reference cylinder Y, the size of the rotating axis mechanism 3 and the reference cylinder Y The two farthest position points among the intersecting positions are position point B1 and position point B2 respectively. The size of the rotating shaft mechanism 3 in the circumferential direction of the reference cylinder Y may be the arc length corresponding to the position point B1 and the position point B2.

As shown in (c) in Figure 8, the rotating shaft mechanism 3 is in a fully open state. In the complete state, the second connecting piece 32 is in the second position relative to the first connecting piece 31 , and the third connecting piece 33 is in the fourth position relative to the second connecting piece 32 . At this time, the first connecting member 31 and the third connecting member are at both ends of the second connecting member 32 in the circumferential direction of the reference cylinder Y. The size of the entire rotating shaft mechanism 3 in the circumferential direction of the reference cylinder Y is larger than the size of the entire rotating shaft mechanism 3 in the circumferential direction of the reference cylinder Y in the folded state, and at this time, the size of the entire rotating shaft mechanism 3 in the circumferential direction of the reference cylinder Y is the largest.

Specifically, as an example, the switching of the rotating shaft mechanism 3 from the folded state to the fully opened state may include two stages of stroke. In a first possible implementation method, the first section of the stroke is that the second connecting member 32 moves relative to the first connecting member 31 , and during this process, the third connecting member 33 remains stationary relative to the second connecting member 32 . After the second connecting member 32 moves from the first position to the second position, the second stroke begins immediately. The second stroke is when the third connecting member 33 moves from the third position to the fourth position relative to the second connecting member 32 .

In the second possible way, the first section of the stroke is when the third connecting member 33 moves from the third position to the fourth position relative to the second connecting member 32. During this process, the second connecting member 32 moves relative to the first connecting member 33. The connecting piece 31 is still in the first position. When the third connecting member 32 moves from the third position to the fourth position, the second stroke begins immediately. The second stroke is when the second connecting member 32 moves from the first position to the second position relative to the first connecting member 31 .

It is worth understanding that which of the above two possible ways is used to switch the rotating shaft mechanism 3 from the folded state to the fully opened state depends on the damping force F1 between the second connecting member 32 and the first connecting member 31 and The magnitude of the damping force F2 between the third connecting member 33 and the second connecting member 32 is related. When F1 is smaller than F2, the rotating shaft mechanism 3 switches from the folded state to the fully opened state in the first possible way. When F1 is greater than F2, the second possible method is used to switch the rotating shaft mechanism 3 from the folded state to the fully opened state.

When F1 and F2 are equal, the movement of the second connecting member 32 relative to the first connecting member 31 and the movement of the third connecting member 33 relative to the second connecting member 32 may be random. In the following description, the first possible implementation manner is taken as an example to illustrate the switching process of the rotating shaft mechanism 3 from the folded state to the fully opened state. Since the process of switching from the fully open state to the folded state is opposite to the process of switching from the folded state to the fully open state, details will not be described again below.

Specifically, when an external force acts on the display 1 in the direction indicated by the dotted arrow F in (a) of FIG. 8 , the second connection can be achieved through the cooperation of the first sliding part 314 and the second sliding part 323 The member 32 is slidably connected to the first connecting member 31, and the second connecting member 32 moves away from the first connecting member 31 around the first virtual axis o1 relative to the first connecting member 31, as shown in (a) in Figure 8 The first position moves to the second position as shown in (b) in Figure 8. In the second position, the second connecting member 32 and the first connecting member 31 are arranged in the circumferential direction of the reference cylinder Y. At this time, the size of the entire rotating shaft mechanism 3 in the circumferential direction of the reference cylinder Y is larger than the circumferential size of the rotating shaft mechanism 3 in the folded state, and smaller than the circumferential size of the rotating shaft mechanism 3 in the fully unfolded state. size of.

When the external force continues to act on the display 1 in the direction indicated by the dotted arrow F in (b) of FIG. 8 , through the cooperation of the third sliding part 324 and the fourth sliding part 333 , the third connecting member 33 can slide. Connected to the second connecting member 32, and the third connecting member 33 moves away from the second connecting member 32 from the third position as shown in (b) of FIG. 8 relative to the second connecting member 32 around the first virtual axis o1. The foldable device 100 is in a fully open state.

In this way, the sliding and rotational cooperation between the second connecting member 32 and the first connecting member 31 can cause the second connecting member 32 to switch between the first position and the second position relative to the first connecting member 31 , thereby allowing the second connecting member 32 to switch between the first position and the second position. The connecting member 32 and the first connecting member 31 as a whole extend or shorten in the circumferential direction of the reference cylinder Y. The sliding and rotational fit between the third connecting member 33 and the second connecting member 32 enables the third connecting member 33 to switch between the third position and the fourth position relative to the second connecting member 32 , thereby causing the third connecting member 33 and the second connecting member 32 to switch between the third position and the fourth position. The entire second connecting member 32 is elongated or shortened in the circumferential direction of a virtual circle with the first virtual axis o1 as the center line, so as to facilitate folding and unfolding of the foldable device 100 .

Moreover, the movement of the second connecting member 32 relative to the first connecting member 31 and the movement of the third connecting member 33 relative to the second connecting member 32 are used. This two-stage movement method is more conducive to adjusting the rotation axis mechanism 3. Referring to the size of the circumferential direction of the cylinder Y, it is beneficial to increase the maximum opening and closing angle of the foldable device 100 to meet the different usage needs of users.

Please refer to FIG. 9 , which is an exploded view of the rotating shaft mechanism 3 shown in FIG. 7 . The first connecting member 31 includes two fixing plates 311 .

The fixed plate 311 is plate-shaped. The shape of the fixing plate 311 includes but is not limited to rectangle, triangle or special shape. The material of the fixing plate 311 includes but is not limited to metal or plastic. On this basis, in order to improve the structural strength of the fixing plate 311, the material of the fixing plate 311 is metal. For example, the fixing plate 311 is made of stainless steel, cast iron or aluminum alloy.

The two fixed plates 311 are arranged opposite to each other in the X-axis direction. Each fixing plate 311 is fixed in the housing 21 . Exemplarily, the connection method between the fixing plate 311 and the housing 21 includes but is not limited to welding, clamping, riveting, gluing or screw connection.

In order to improve the support reliability of the fixing plate 311 to the second connecting member 32 and the third connecting member 33, the first connecting member 31 also includes a connecting component (not shown in the figure). Connected components include, but are not limited to, one, two or more groups. In other examples, the first connecting member 31 may not include a connecting component.

Please continue to refer to FIG. 9 . The connecting assembly includes a connecting pin 312 and two locking pieces 313 . The fixing plate 311 is provided with connection holes 3115. The shape of the connecting hole 3115 includes, but is not limited to, circular, triangular, square or special-shaped. The connecting pins 312 are inserted through the connecting holes 3115 on the two fixing plates 311 in sequence. The two locking parts 313 correspond to the two fixing plates 311 one-to-one. Each locking piece 313 is located on a side of the corresponding fixing plate 311 away from the other fixing plate 311 and cooperates with the connecting pin 312 . Thus, the two fixing plates 311 can be assembled together. For example, the locking member 313 is a nut, and the locking member 313 is threadedly engaged with the connecting pin 312 .

It is worth noting that the structure of the first connecting member 31 is not limited to the previous combination of the two fixing plates 311 and the connecting components. In other examples, the first connecting member 31 may not include the connecting components. Alternatively, the first connecting member 31 only includes one fixing plate 311 .

A first sliding part 314 is provided on each fixed plate 311 .

Please continue to refer to FIG. 9 , the second connecting member 32 is located between the two fixing plates 311 . Specifically, second sliding parts 323 are respectively provided at both ends of the second connecting member 32 along the X-axis direction. The first sliding part 314 and the second sliding part 323 located on the same side of the second connecting member 32 along the X-axis direction correspond to each other. In this way, the reliability of the relative movement between the second connecting member 32 and the first connecting member 31 is improved.

Please continue to refer to FIG. 9 . The shape of the first sliding part 314 is a first arc-shaped hole penetrating the fixed plate 311 along the thickness direction of the fixed plate 311 . In this case, the first arc-shaped hole is a through hole. Of course, it can be understood that in other examples, the first sliding part 314 may also be a first arc recessed from one side surface of the fixed plate 311 in the thickness direction to the other side surface of the fixed plate 311 in the thickness direction. shaped hole, in this case, the first arc-shaped hole is a blind hole. The center line of the first arc-shaped hole is collinear with the first virtual axis o1. The extension path of the first arc-shaped hole can be a superior arc (that is, an arc with a central angle greater than 180°), a minor arc (that is, an arc with a central angle less than 180°), or a semicircular arc (also a semicircular arc). That is, an arc whose central angle is equal to 180°), which is not specifically limited here. In the embodiment shown in FIG. 9 , the extension path of the first arc-shaped hole is a minor arc.

The second sliding part 323 is a rib protruding from the second connecting member 32 . For example, the shape of the ribs includes, but is not limited to, cylindrical, cubic or special-shaped. The connection method between the ribs and the second connecting member 32 includes but is not limited to gluing, welding, snapping or screw connection. In other examples, in order to improve the connection reliability between the raised ribs and the second connecting member 32 , the raised ribs and the second connecting member 32 may be integrally formed parts.

On this basis, in order to ensure the reliability of the matching of the convex ribs in the first arc-shaped hole, the problem of jamming occurs during the sliding process of the convex ribs in the first arc-shaped hole. The ribs may be cylindrical. Alternatively, the ribs are along arc-shaped blocks. The extension path of the arc block can be a superior arc (that is, an arc with a central angle greater than 180°), a minor arc (that is, an arc with a central angle less than 180°), or a semicircular arc (that is, an arc with a central angle that is less than 180°). arc equal to 180°), which is not specifically limited here. Just ensure that the central angle corresponding to the arc-shaped block is smaller than the central angle of the first arc-shaped hole.

It can be understood that the structural forms of the first sliding part 314 and the second sliding part 323 are not limited to the foregoing forms. In some other embodiments, the first sliding part 314 is a rib. The second sliding part 323 is a first arc-shaped hole.

It can be seen from the above that by configuring the first sliding part 314 as a first arc-shaped hole and configuring the second sliding part 323 as a rib, not only can the relative sliding of the second connecting member 32 and the first connecting member 31 be realized, but also The rotation of the second connecting member 32 around the first virtual axis o1 can also use the cooperation of the first arc-shaped hole and the convex rib to guide the movement of the second connecting member 32 and improve the movement of the second connecting member 32 High reliability, simple structure, easy processing and manufacturing, and conducive to reducing manufacturing costs.

In order to provide a damping force for the movement of the second connecting member 32 relative to the first connecting member 31 , please refer back to FIG. 7 , the first damping component 34 is connected between the second connecting member 32 and the first connecting member 31 . The first damping component 34 is used to provide damping force for the movement of the second connecting member 32 relative to the first connecting member 31 .

Please continue to refer to FIG. 9 , and combined with FIG. 7 , the first damping component 34 includes a first gear 341 , a second gear 342 , and a first damping structure 343 .

The first gear 341 is rotatably connected to the first connecting member 31 . The rotation center line of the first gear 341 extends along the X-axis direction. In this way, the rotation center line of the first gear 341 is parallel to the first virtual axis o1.

The second gear 342 is fixed to the second connecting member 32 and meshes with the first gear 341 .

The first damping structure 343 is connected between the first gear 341 and the first connecting member 31 to provide damping force for the relative rotation of the first gear 341 and the first connecting member 31 .

Specifically, the external force acting on the display 1 will be transmitted to the second connecting member 32 and drive the second connecting member 32 to rotate. The rotation of the second connecting member 32 drives the second gear 342 to rotate synchronously. Since the second gear 342 meshes with the first gear 341, the second gear 342 drives the first gear 341 to rotate. Due to the damping force of the first damping structure 343, the user will have a damping feel when driving the display 1 to rotate. When the external force applied to the display 1 is removed, the damping force exerted by the first damping structure 343 on the first connecting member 31 and the first gear 341 can prevent the first gear 341 from rotating. The stop of the first gear 341 will also stop the second gear 342 and the second connecting member 32, so that when the display 1 rotates relative to the keyboard host 2, it is at the same time as the relative rotation of the second connecting member 32 and the first connecting member 31. When on the stroke, the display 1 can be made to resist the effect of gravity, preventing the display 1 from rotating relative to the keyboard host 2, so that the foldable device 100 can be maintained at the current opening and closing angle. Moreover, the meshing cooperation between the first gear 341 and the second gear 342 can further support the display 1 and provide better stability, thereby further preventing the display 1 from rotating due to gravity and improving the user experience. .

In short, in the rotating shaft mechanism 3 of the embodiment of the present application, the meshing cooperation of the first gear 341 and the second gear 342 and the relative rotation of the first gear 341 and the first connecting member 31 by the first damping structure 343 are utilized. The dual function of providing damping force can provide reliable support and good stability to the display 1, avoid the rotation of the display 1 due to gravity, and improve the user experience.

Please continue to refer to FIG. 9 and combine it with FIG. 7 . The first damping structure 343 includes an elastic member 3431 . The elastic member 3431 is in contact between the first gear 341 and the first connecting member 31 . Therefore, the elastic member 3431 has good elastic deformation ability, and the elastic deformation ability of the elastic member 3431 is used to provide a damping force for the rotation of the second connecting member 32 relative to the first connecting member 31 , thus achieving high reliability.

Please continue to refer to FIG. 9 , the first damping component 34 also includes a connecting rod 344 .

The connecting rod 344 is rotatably connected between the two fixed plates 311 . The first gear 341 is located between the two fixed plates 311 . The first gear 341 is coated and fixed on the connecting rod 344 . Elastic members 3431 are respectively arranged on both sides of the first gear 341 in the axial direction. The elastic member 3431 is wrapped around the connecting rod 344. The elastic member 3431 abuts between the first gear 341 and the fixed plate 311 which is on the same axial side of the first gear 341 as the elastic member 3431 . Therefore, the structure is simple.

Exemplarily, the connection method between the first gear 341 and the connecting rod 344 includes but is not limited to gluing, welding, or screw connection. In other examples, in order to simplify the processing process and reduce manufacturing costs, the two parts can also be formed into one piece.

It can be understood that in some other examples, the elastic member 3431 may be arranged only on one axial side of the first gear 341, and the elastic member 3431 may not be provided on the other side. As long as the elastic member 3431 is arranged on at least one side of the first gear 341 in the axial direction, the elastic member 3431 abuts the first gear 341 and the fixed plate on the same axial side of the first gear 341 as the elastic member 3431 It can be between 311 and 311.

It can also be understood that in other examples, the first damping structure 343 may not include the elastic member 3431. The first damping structure 343 may be defined by the axial end surface of the first gear 341 and the fixed plate 311 , wherein the axial end surface of the first gear 341 abuts against the fixed plate 311 .

In addition, it can also be understood that this application is not limited to a rotation implementation in which the connecting rod 344 is rotatably connected between the two fixed plates 311 and the first gear 341 is fixed to the connecting rod 344. In other examples, , the connecting rod 344 is fixed between the two fixed plates 311 , and the first gear 341 is rotatably provided on the connecting rod 344 .

On this basis, in order to adjust the preload force of the elastic member 3431 to meet different damping force requirements. The fixing plate 311 is provided with mounting holes 3111. The connecting rods 344 are inserted through the mounting holes 3111 of the two fixing plates 311 in sequence.

The first damping assembly 34 also includes two adjusting nuts 345 . The two adjusting nuts 345 correspond to the two fixing plates 311 one-to-one. Each adjusting nut 345 is located on the side of the corresponding fixing plate 311 away from the other fixing plate 311 and is threadedly engaged with the connecting rod 344 . By rotating the adjusting nut 345 , the elastic member 3431 can be compressed to exert an axial force toward the first gear 341 through the elastic member 3431 . In addition, the pretightening force of the elastic member 3431 can be adjusted by rotating the adjusting nut 345, thereby adjusting the initial rotational damping provided by the rotating shaft mechanism 3, thereby meeting the needs of different damping scenarios and having a wide range of applications.

Specifically, the elastic member 3431 includes but is not limited to a spring or a rubber member. For example, when the elastic member 3431 is a spring, the spring may be a disc spring group. The disc spring group includes a plurality of disc springs, and the plurality of disc springs are arranged in the extending direction of the rotation center line of the first gear 341 . The disc spring is provided with an assembly hole (not shown in the figure), and the disc spring is sleeved on the connecting rod 344 via the assembly hole. It can be understood that in other embodiments, the elastic member 3431 can also be a spring, a torsion spring, etc.

Please continue to refer to FIG. 9 and combine it with FIG. 10 . FIG. 10 is a schematic diagram of the assembly of the second connecting member 32 and the third sliding part 324 shown in FIG. 9 . The second connecting member 32 includes two side plates 321 and an arc plate 322 .

The side plate 321 is plate-shaped. The shape of the side plate 321 includes but is not limited to arc, semicircle, sector, rectangle, triangle or special shape. The material of the side plate 321 includes but is not limited to metal or plastic. On this basis, in order to improve the structural strength of the side plate 321, the material of the side plate 321 is metal. For example, the side plate 321 is made of stainless steel, cast iron or aluminum alloy.

It is worth noting that in other examples, the second connecting member 32 may have one side plate 321 instead of two.

The two side plates 321 are arranged opposite to each other in the X-axis direction. Each side plate 321 is provided with a second sliding part 323 and a third sliding part 324. The second sliding parts 323 on the two side plates 323 cooperate with the first sliding parts 314 on the two fixed plates 311 in a one-to-one correspondence.

The arc plate 322 is connected between the two side plates 321 . The arc plate 322 is in a circular arc shape. The extension path of the arc plate 322 may be a superior arc (i.e., an arc with a central angle greater than 180°), a minor arc (i.e., an arc with a central angle less than 180°), or a semicircular arc (i.e., an arc with a central angle less than 180°). An arc with an angle equal to 180°), which is not specifically limited here. In the embodiment shown in FIG. 9 , the extension path of the arc plate 322 is a minor arc.

For example, the outer peripheral surface of each side plate 321 is connected by an arc segment 3211 and a planar segment 3212. The arc plate 322 is connected between the arc sections 3211 of the two side plates 321 .

In this way, the shape of the second connecting member 32 is more regular. When the second connecting member 32 is assembled to the first connecting member 31, it can facilitate the rotation of the second connecting member 32 around the first virtual axis o1 and save space. the space within the housing 21. Moreover, the two side plates 321 and the arc plate 322 can cooperate to form a receiving space, which can be used to accommodate the third connecting piece in the folded state, making the structure more compact.

On this basis, the center line of the arc segment 3211 and the arc plate 322 is the first virtual axis o1. In this way, the shape of the second connecting member 32 is more regular. When the second connecting member 32 is assembled to the first connecting member 31, it can facilitate the rotation of the second connecting member 32 around the first virtual axis o1 and save space. the space within the housing 21.

Please continue to refer to FIG. 9 , the arc plate 322 is located on the outer periphery of the first gear 341 . A plurality of first tooth portions are formed on a surface of the arc plate 322 facing away from the first virtual axis o1. The plurality of first tooth portions 3421 are sequentially arranged along the extending direction of the arc plate 322 . The plurality of first tooth portions 3421 and the arc plate 322 define a second gear 342 . In this way, the second gear 342 has a simple structure and is easy to process and manufacture, thus avoiding the problems of increased cost and complicated structure caused by additionally disposing the second gear 342 .

Of course, the application is not limited to this. In other examples, the second gear 342 may not be defined by the plurality of first tooth portions 3421 and the arc plate 322 , but may be additionally provided on the second connecting member 32 .

Please continue to refer to FIG. 9 , the third connecting member 33 is located between the two side plates 321 . Specifically, the third connecting member 33 is on the side of the arc plate 322 facing the first virtual axis o1.

Specifically, fourth sliding parts 333 are respectively provided at both ends of the third connecting member 33 along the X-axis direction.

Please continue to refer to FIG. 9 , combined with FIG. 11 . FIG. 11 is a perspective view of the rotating shaft mechanism 3 from another perspective shown in FIG. 7 . The third sliding part 324 and the fourth sliding part 333 located on the same side of the third connecting member 33 along the X-axis direction are correspondingly matched. In this way, the reliability of the relative movement between the third connecting member 33 and the second connecting member 32 is improved.

Please continue to refer to FIG. 9 and combine it with FIG. 11 . The third connecting member 33 includes two connecting plates 331 and an arc plate 332 .

The connecting plate 331 is plate-shaped. The shape of the connecting plate 331 includes but is not limited to arc, semicircle, sector, rectangle, triangle or special shape. The material of the connecting plate 331 includes but is not limited to metal or plastic. On this basis, in order to improve the structural strength of the connecting plate 331, the connecting plate 331 is made of metal. For example, the connecting plate 331 is made of stainless steel, cast iron or aluminum alloy.

It is worth noting that in other examples, the number of connecting plates 331 of the third connecting member 33 may not be two, but one.

The two connecting plates 331 are arranged opposite to each other in the X-axis direction. The arc plate 332 is connected between the two connecting plates 331 . The arc plate 332 is in an arc shape. The extension path of the arc plate 332 may be a superior arc (i.e., an arc with a central angle greater than 180°), a minor arc (i.e., an arc with a central angle less than 180°), or a semi-circular arc (i.e., an arc with a central angle less than 180°). An arc with an angle equal to 180°), which is not specifically limited here. In the embodiment shown in FIG. 9 , the extension path of the arc plate 332 is a minor arc.

For example, the outer peripheral surface of each connecting plate 331 has an arc segment 3311. The arc plate 332 is connected between the arc segments 3311 of the two connecting plates 331 . In this way, the shape of the third connecting member 33 is more regular. When the third connecting member 33 is assembled to the first connecting member 31, it can facilitate the rotation of the third connecting member 33 around the first virtual axis o1 and save the occupied space. the space within the housing 21.

On this basis, the center line of the arc plate 332 is the first virtual axis o1. In this way, the shape of the third connecting member 33 is more regular. When the third connecting member 33 is assembled to the first connecting member 31, it can facilitate the rotation of the third connecting member 33 around the first virtual axis o1 and save the occupied space. the space within the housing 21. The above-mentioned extension section 338 is connected to the arc plate 332 .

Please continue to refer to FIGS. 9 and 11 . In this specific example, the third sliding part 324 is a connecting shaft 3531 provided on each side plate 321 . The shape of the connecting shaft 3531 includes but is not limited to cylindrical, cubic or special shape.

Specifically, the side plate 321 is provided with a shaft hole 3532. The connecting shaft 3531 is interference-fitted in the shaft hole 3532. The connection method between the connecting shaft 3531 and the side plate 321 is not limited to this. In other examples, the connection method between the connecting shaft 3531 and the second connecting member 32 can also be glued, welded, or screwed.

The fourth sliding part 333 is a second arc-shaped hole penetrating the connecting plate 331 along the thickness direction of the connecting plate 331. In this case, the second arc-shaped hole is a through hole. Of course, it can be understood that in other examples, the fourth sliding portion 333 may also be a second arc recessed from one side surface in the thickness direction of the connecting plate 331 to the other side surface in the thickness direction of the connecting plate 331 . shaped hole, in this case, the second arc-shaped hole is a blind hole. It can be understood that the center line of the second arc-shaped hole is collinear with the first virtual axis o1. The extension path of the second arc-shaped hole can be a superior arc (that is, an arc with a central angle greater than 180°), a minor arc (that is, an arc with a central angle less than 180°), or a semicircular arc (also a semicircular arc). That is, an arc whose central angle is equal to 180°), which is not specifically limited here. In the embodiment shown in FIG. 9 , the extension path of the second arc-shaped hole is a minor arc.

On this basis, in order to ensure the reliability of the coupling shaft 3531 in the second arc-shaped hole, the connecting shaft 3531 is prevented from being stuck during the sliding process in the second arc-shaped hole. The connecting shaft 3531 may be cylindrical. Alternatively, the connecting shaft 3531 is an arc-shaped block.

It can be understood that the structural forms of the third sliding part 324 and the fourth sliding part 333 are not limited to the foregoing forms. In some other embodiments, the third sliding part 324 is a second arc-shaped hole, and the fourth sliding part 324 is a second arc-shaped hole. Part 333 is a connecting shaft 3531.

It can be seen from the above that by using the second arc-shaped hole and the connecting shaft 3531 to cooperate, not only the relative sliding of the third connecting member 33 and the second connecting member 32 can be realized, but also the relative sliding of the third connecting member 33 around the first virtual axis o1 can be realized. rotation, and the cooperation between the second arc-shaped hole and the connecting shaft 3531 can also be used to guide the movement of the third connecting member 33, improving the reliability of the movement of the third connecting member 33, and the structure is simple and easy to process and manufacture. , which is beneficial to reducing manufacturing costs.

Please continue to refer to FIG. 7 , FIG. 9 and FIG. 11 . Based on any of the above embodiments having the third connecting member 33 , in some embodiments, in order to adjust the position of the third connecting member 33 relative to the second connecting member 32 The movement provides damping force, and the rotating shaft mechanism 3 also includes a second damping component 35 . The second damping component 35 is connected between the third connecting member 33 and the second connecting member 32 to provide damping force for the movement of the third connecting member 33 relative to the second connecting member 32 .

Please continue to refer to FIG. 9 , and combined with FIG. 11 , the second damping assembly 35 includes a third gear 351 , a fourth gear 352 and a second damping structure 353 .

The third gear 351 is rotatably connected to the second connecting member 32 . The rotation center line of the third gear 351 extends along the X-axis direction. The rotation center line of the third gear 351 is parallel to the first virtual axis o1.

The fourth gear 352 is fixed to the third connecting member 33 , and the fourth gear 352 meshes with the third gear 351 .

The second damping structure 353 is connected between the third gear 351 and the second connecting member 32 to provide damping force for the relative rotation of the third gear 351 and the second connecting member 32 .

Specifically, the external force acting on the display 1 will be transmitted to the third connecting member 33 and drive the third connecting member 33 to rotate relative to the second connecting member 32 . The rotation of the third connecting member 33 drives the fourth gear 352 to rotate synchronously. Since the fourth gear 352 meshes with the third gear 351, the fourth gear 352 drives the third gear 351 to rotate. Due to the damping force of the second damping structure 353, the user will have a damping feel when driving the display 1 to rotate. When the external force applied to the display 1 is removed, the damping force exerted by the second damping structure 353 on the second connecting member 32 and the third gear 351 can prevent the third gear 351 from rotating. The stop of the third gear 351 will also cause the third gear 351 to rotate. The four gears 352 and the third connecting member 33 stop, so that when the rotation of the display 1 relative to the keyboard host 2 is on the relative rotation stroke of the third connecting member 33 and the second connecting member 32 , the display 1 can resist gravity. Function to prevent the display 1 from rotating relative to the keyboard host 2 so that the foldable device 100 can be maintained at the current opening and closing angle. Moreover, the meshing cooperation between the third gear 351 and the fourth gear 352 can further support the display 1 and provide better stability, thereby further preventing the display 1 from rotating due to gravity and improving the user experience. .

In short, in the rotating shaft mechanism 3 of the embodiment of the present application, the fourth gear 352 is used to engage with the third gear 351 , and the second damping structure 353 is used to provide the relative rotation between the third gear 351 and the second connecting member 32 . The dual function of the damping force can provide reliable support and good stability to the display 1, avoid rotation of the display 1 due to gravity, and improve the user experience.

Please continue to refer to Figures 9 and 11. The second damping structure 353 includes the above-mentioned connecting shaft 3531 and the above-mentioned shaft hole 3532. Specifically, while the connecting shaft 3531 is interference-fitted in the shaft hole 3532, it can also rotate relative to the shaft hole 3532.

The third gear 351 is located between the two connecting plates 331 . And the third gear 351 is fixed between the connecting shafts 3531 of the two side plates 321.

In this way, on the one hand, due to the interference fit between the connecting shaft 3531 and the shaft hole 3532, friction can be generated between the connecting shaft 3531 and the shaft hole 3532, so that when the third gear 351 fixed to the connecting shaft 3531 rotates, A damping force is provided for the rotation of the third gear 351 relative to the second connecting member 32 . On the other hand, the connecting shaft 3531 can not only cooperate with the shaft hole 3532 to play a damping role, but also can slide and rotate with the fourth sliding part 333, which is conducive to simplifying the structure of the rotating shaft mechanism 3 and improving the structural compactness of the rotating shaft mechanism 3. .

In order to improve the reliability of the cooperation between the third gear 351 and the connecting shaft 3531 and prevent relative rotation between them, the connecting shaft 3531 has a fitting portion 35311. The cross-section of the fitting portion 35311 is non-circular. Exemplarily, the cross-sectional shape of the fitting portion 35311 includes but is not limited to triangle, square, oblong, or special shape. The third gear 351 has a gear hole 3511. The shape of the gear hole 3511 is adapted to the matching portion 35311.

On this basis, please continue to refer to Figure 9 and combine it with Figure 11. In some embodiments, a plurality of second teeth 3521 are formed on the surface of the arc plate 332 facing the first virtual axis o1. The arc plate 332 and a plurality of second teeth 3521 define a fourth gear 352 . In this way, the structure is simple and compact.

Please refer to FIG. 12 , which is a schematic diagram of the rotating shaft mechanism 3 provided by other embodiments of the present application. Since the connecting shaft 3531 is an interference fit in the shaft hole 3532, in order to realize the assembly of the connecting shaft 3531 and the shaft hole 3532. The side plate 321 is provided with a notch 3213. The notch 3213 is located on one circumferential side of the shaft hole 3532 and communicates with the shaft hole 3532 .

Specifically, the notch 3213 penetrates the side plate 321 in the thickness direction of the side plate 321 .

In order to prevent the setting of the notch 3213 from affecting the interference fit between the connecting shaft 3531 and the shaft hole 3532, the width dimension W of the notch 3213 cannot be too large. Based on this, the ratio of the width W of the notch 3213 to the diameter of the shaft hole 3532 is less than or equal to 0.2. Further, the ratio of the width W of the notch 3213 to the diameter of the shaft hole 3532 is less than or equal to 0.1.

In the description of this specification, specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent substitutions are made to some of the technical features; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions in the embodiments of the present application.

Claims (25)

1. A rotating shaft mechanism, characterized in that it includes: A first connecting piece, the first connecting piece is provided with a first sliding part; a second connecting piece, the second connecting piece is provided with a second sliding part, the second sliding part is slidingly connected to the first sliding part and can rotate around the first virtual axis relative to the first sliding part, The first virtual axis is located outside the second sliding part and the first sliding part; A first damping assembly, the first damping assembly includes a first gear, a second gear and a first damping structure, the first gear is rotatably connected to the first connecting piece, and the second gear is fixed to the The second connecting member is meshed with the first gear, and the first damping structure is connected between the first gear and the first connecting member for providing the first gear and the first connecting member. The relative rotation of the first connecting member provides the damping force. 2. The rotating shaft mechanism according to claim 1, wherein the first damping structure includes an elastic member, and the elastic member is in contact between the first gear and the first connecting member. 3. The rotating shaft mechanism according to claim 2, characterized in that the first connection member includes two fixed plates, the two fixed plates are arranged oppositely along the extension direction of the first virtual axis, and the second connection member The piece is between the two fixed plates; The first damping component also includes a connecting rod, the connecting rod is connected between the two fixed plates, the first gear is located between the two fixed plates, and is sleeved on the connecting rod; Wherein, the elastic member is arranged on at least one side of the first gear in the axial direction. The elastic member is wrapped around the connecting rod and abuts against the first gear and is in the position of the elastic member. between the fixed plates on the same side of the first gear axis. 4. The rotating shaft mechanism according to claim 3, wherein the fixing plate is provided with a mounting hole, and the connecting rod is passed through the mounting holes on the two fixing plates in sequence; The first damping assembly also includes two adjusting nuts, one-to-one correspondence between the two adjusting nuts and the two fixed plates, and each adjusting nut is located away from the corresponding fixed plate and away from the other fixed plate. one side of the plate and threadedly mates with the connecting rod. 5. The rotating shaft mechanism according to claim 3 or 4, characterized in that the elastic members are respectively arranged on both sides of the first gear in the axial direction. 6. The rotating shaft mechanism according to any one of claims 3-5, characterized in that the first gear is fixed to the connecting rod, and the connecting rod is rotatably connected to the two fixed plates. 7. The rotating shaft mechanism according to any one of claims 1 to 6, characterized in that the first connecting member includes two fixed plates, and the two fixed plates are arranged oppositely along the extension direction of the first virtual axis. , the second connecting piece is between the two fixed plates; The first damping component further includes a connecting rod, which is connected between the two fixed plates, and the first gear is located between the two fixed plates and is sleeved on the connecting rod. 8. The rotating shaft mechanism according to any one of claims 1 to 7, characterized in that the second connecting member includes an arc plate, the arc plate is located on the outer periphery of the first gear, and the arc plate The center line of the circular plate is collinear with the first virtual axis. A plurality of first tooth portions are formed on a surface of the arc-shaped plate facing away from the first virtual axis. The plurality of first tooth portions are formed along the The arcuate plates are arranged sequentially in the extending direction, and the arcuate plates and the plurality of first tooth portions define the second gear. 9. The rotating shaft mechanism according to any one of claims 1 to 8, characterized in that the first sliding part is a first arc-shaped hole formed on the first connecting piece, and the second The sliding part is a convex rib formed on the second connecting piece; or the first sliding part is a convex rib formed on the first connecting piece, and the second sliding part is a convex rib formed on the second connecting piece. The first arc-shaped hole on the piece; Wherein, the convex rib fits in the first arc-shaped hole. 10. The rotating shaft mechanism according to any one of claims 1 to 9, characterized in that the first connecting member includes two fixed plates, and the two fixed plates are arranged oppositely along the extension direction of the first virtual axis. , the second connecting piece is between the two fixed plates; The first sliding part is provided on each fixed plate, and the second sliding part is respectively formed at both ends of the second connecting member along the extension direction of the first virtual axis. Along the extension direction of the first virtual axis, the second sliding part and the first sliding part located on the same side of the second connecting member correspond to each other. 11. The rotating shaft mechanism according to any one of claims 1 to 10, characterized in that the second connecting piece is provided with a third sliding part, The rotating shaft mechanism also includes a third connecting piece. The third connecting piece is provided with a fourth sliding part. The fourth sliding part is slidingly connected to the third sliding part and can rotate relative to the third sliding part. The first virtual axis rotates, and the first virtual axis is located outside the fourth sliding part and the third sliding part; The rotating shaft mechanism has a fully open state. In the fully open state, the first connecting member and the third connecting member are at both ends of the second connecting member along the circumference of the reference cylinder, wherein, The cylinder with the first virtual axis as the center line is the reference cylinder. 12. The rotating shaft mechanism according to claim 11, characterized in that the third sliding part is a connecting shaft provided on the second connecting piece, and the fourth sliding part forms the third connecting piece. the second arc-shaped hole; Alternatively, the third sliding part is a second arc-shaped hole provided on the second connecting piece, and the fourth sliding part forms a connecting shaft on the third connecting piece; Wherein, the connecting shaft fits in the second arc-shaped hole. 13. The rotating shaft mechanism according to claim 11 or 12, characterized in that the second connecting member includes two side plates, and the two side plates are arranged oppositely along the extension direction of the first virtual axis, so The third connecting piece is between the two side plates; The third sliding part is provided on each side plate, and the fourth sliding part is respectively formed at both ends of the third connecting member along the extension direction of the first virtual axis. In the extending direction of the first virtual axis, the third sliding part and the fourth sliding part located on the same side of the third connecting member correspond to each other. 14. The rotating shaft mechanism according to any one of claims 11 to 13, further comprising a second damping component connected to the third connecting piece and the second connecting piece. between to provide damping force for the relative movement of the third connecting piece and the second connecting piece. 15. The rotating shaft mechanism according to claim 14, wherein the second damping component includes a third gear, a fourth gear and a second damping structure, the third gear is rotatably connected to the second Connecting member, the fourth gear is fixed to the third connecting member and meshes with the third gear, and the second damping structure is connected between the third gear and the second connecting member to Used to provide damping force for the relative rotation of the third gear and the second connecting member. 16. The rotating shaft mechanism according to claim 15, wherein the second damping structure includes a connecting shaft and a shaft hole formed in the second connecting piece, and the third gear is fixed to the connecting shaft, The connecting shaft is interference-fitted into the shaft hole and is rotatable relative to the shaft hole. 17. The rotating shaft mechanism according to claim 16, wherein the second connecting member includes two side plates, the two side plates are arranged oppositely along the extension direction of the first virtual axis, and the third gear Located between the two side plates, each of the side plates is provided with the shaft hole, and the connecting shaft is interference-fitted in each of the shaft holes. The third gear is fixed on both sides. between the connecting shafts of the side plates. 18. The rotating shaft mechanism according to claim 17, characterized in that the third connecting member is located between the two side plates and includes two connecting plates arranged oppositely, and the two connecting plates are arranged along the two side plates. The extension directions of the first virtual axis are arranged oppositely, and the third gear is between the two connecting plates; The fourth sliding part is a second arc-shaped hole penetrating the connecting plate along the thickness direction of the connecting plate, and the third sliding part is the connection penetrating through the second arc-shaped hole. axis. 19. The rotating shaft mechanism according to claim 17, wherein the side plate has a notch, and the notch is located on a circumferential side of the shaft hole and communicates with the shaft hole. 20. The rotating shaft mechanism according to any one of claims 11 to 19, wherein the third connecting member includes an arc plate located on the outer periphery of the third gear, and the arc plate is located on the outer periphery of the third gear. The center line of the arc plate is collinear with the first virtual axis. A plurality of second tooth portions are formed on a surface of the arc plate facing the first virtual axis. The plurality of second tooth portions are formed on the surface of the arc plate. The arc plates are distributed sequentially in the circumferential direction, and the arc plates and the plurality of second tooth portions define the fourth gear. 21. A foldable device, characterized by comprising: A rotating shaft mechanism, the rotating shaft mechanism is the rotating shaft mechanism according to any one of claims 1-19; a first folding body, the first folding body is fixedly connected to the first connecting piece; A second folding body, the second folding body is connected to the second connecting piece. 22. The foldable device according to claim 21, wherein the rotating shaft mechanism is the rotating shaft mechanism according to any one of claims 11-20, and the third connecting piece and the second folding Body fixed connection. 23. The foldable device according to claim 21 or 22, wherein the foldable device is a notebook computer, wherein the first folding body is a keyboard host, and the second folding body is a display. 24. The foldable device according to claim 23, wherein the keyboard host includes a housing, a keyboard and a signal interface, the housing includes a first part and a second part, the second part is located in the first part circumferential side and connected to the first part, the keyboard is installed on the first part, the thickness of the second part is greater than the thickness of the first part, and the signal interface is located in the second part , the wall panel of the second part facing away from the first part has an insertion opening directly facing the signal interface; The foldable device has a folded state. In the folded state, the display and the first part are stacked and the entire display is on a side of the second part close to the first part. 25. The foldable device according to claim 24, wherein the first connecting member is fixed in the housing, and the first part of the wall plate for installing the keyboard is provided with an escape hole, The escape hole is between the keyboard and the second part, and extends to the edge of the second part. The escape hole is used to avoid the second connecting piece and the third connecting piece. .