Connecting device and electronic equipment

Abstract

The invention discloses a connecting device and electronic equipment, the connecting device comprises a first connecting piece, a second connecting piece and a torsion assembly, the second connecting piece is rotatably connected with the first connecting piece, and the torsion assembly can provide torsion in the relative rotation process of the first connecting piece and the second connecting piece. In the process that the first connecting piece rotates from a first angle to a second angle relative to the second connecting piece in the first direction, the torsion assembly provides first torsion, and the second angle is larger than the first angle. In the process that the first connecting piece rotates from the second angle to the first angle relative to the second connecting piece in the second direction, the torsion assembly provides second torsion, the second direction is opposite to the first direction, and the second torsion is larger than the first torsion; in the process that the first connecting piece rotates from the second angle to the third angle relative to the second connecting piece in the first direction, the torsion assembly provides third torsion larger than the first torsion, and the third angle is larger than the second angle.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and in particular to a connection device and an electronic device. Background Technology

[0002] Electronic devices (such as laptops) connect two rotating parts (such as the screen and the main unit of a laptop) via a connecting device. When these two rotating parts rotate relative to each other or tend to rotate relative to each other, the connecting device has a torque that resists the movement. Summary of the Invention

[0003] This application provides the following technical solution:

[0004] A connecting device, comprising:

[0005] First connector;

[0006] The second connector is rotatably connected to the first connector.

[0007] The torque assembly is capable of providing torque during the relative rotation of the first connector and the second connector;

[0008] During the process of the first connector rotating relative to the second connector from a first angle to a second angle along a first direction, the torque component provides a first torque, and the second angle is greater than the first angle;

[0009] During the process of the first connector rotating relative to the second connector from the second angle to the first angle along the second direction, the torque component provides a second torque, the second direction being opposite to the first direction, and the second torque being greater than the first torque;

[0010] During the process of the first connector rotating relative to the second connector from the second angle to the third angle along the first direction, the torque component provides a third torque, which is greater than the first torque, and the third angle is greater than the second angle.

[0011] Optionally, the above-described connecting device includes at least one of the following:

[0012] The first angle is 0°;

[0013] The second angle is less than 180°;

[0014] The third torque and the second torque satisfy the condition of equality;

[0015] During the process of the first connector rotating relative to the second connector from the third angle to the second angle along the second direction, the torque component provides a fourth torque, which satisfies the condition of being equal to the second torque.

[0016] Optionally, in the above-described connecting device, the torque component includes:

[0017] Base;

[0018] A first rotating shaft is rotatably connected to the base, and the first rotating shaft is fixed relative to the first connecting member;

[0019] The first friction element is rotatably connected to the first rotating shaft;

[0020] The first force-applying component is movably disposed on the base, and the first force-applying component abuts against the first friction component;

[0021] During the process of the first connecting member rotating relative to the second connecting member from the first angle to the second angle along the first direction, the first friction member remains relatively stationary with respect to the first rotating shaft;

[0022] During the process of the first connector rotating relative to the second connector from the second angle to the third angle along the first direction, the first friction member remains relatively stationary with respect to the base under the action of the first abutting force of the first force-applying member.

[0023] Optionally, in the above-described connecting device, during the process of the first connecting member rotating relative to the second connecting member from the third angle to the second angle along the second direction, the first friction member remains relatively stationary with respect to the base under the action of the second abutting force of the first force-applying member, and the second abutting force is in a different direction from the first abutting force; and / or,

[0024] The connecting device includes a first braking member that is drivenly connected to the first rotating shaft. During the process of the first connecting member rotating relative to the second connecting member from the first angle to the second angle along the first direction, the first braking member and the first force-applying member are in a first target state to allow the first force-applying member to move relative to the base. During the process of the first connecting member rotating relative to the second connecting member from the second angle to the third angle along the first direction, the first braking member and the first force-applying member are in a second target state to restrict the movement of the first force-applying member relative to the base.

[0025] Optionally, in the above-described connecting device, the first force-applying member is rotatably connected to the base, and a first driving member is provided between the first force-applying member and the base, the first driving member providing a driving force to rotate the first force-applying member relative to the base;

[0026] The surface of the first braking member has a first groove, which provides a space for the end of the first force-applying member away from the first friction member to move. When the first braking member and the first force-applying member are in the second target state, the end of the first force-applying member away from the first friction member abuts against the area of ​​the surface of the first braking member outside the first groove.

[0027] Optionally, in the above-described connecting device, the outer peripheral surface of the first friction member is provided with a plurality of circumferentially arranged locking portions. During the rotation of the first connecting member relative to the second connecting member along the second direction, the locking portions engage with the first force-applying member, so that both the first force-applying member and the first friction member remain relatively stationary with respect to the base. During the rotation of the first connecting member relative to the second connecting member along the first direction from the first angle to the second angle, the first force-applying member can overcome the driving force of the first driving member and rotate relative to the base under the action of the locking portions; and / or,

[0028] The connecting device includes a first stop fixedly disposed on the base, and the driving force of the first driving member is used to cause the first force-applying member to rotate toward the first stop.

[0029] Optionally, the above-mentioned connecting device includes a second rotating shaft rotatably connected to the base, the second rotating shaft being fixed relative to the second connecting member, and the first braking member being fixed relative to the second rotating shaft.

[0030] Optionally, the above-mentioned connecting device includes:

[0031] The second friction element is rotatably connected to the second rotating shaft;

[0032] The second force-applying component is movably disposed on the base, and the second force-applying component abuts against the second friction component;

[0033] During the process of the first connecting member rotating relative to the second connecting member from the first angle to the second angle along the first direction, the second friction member and the second rotating shaft remain relatively stationary.

[0034] During the process of the first connector rotating relative to the second connector from the second angle to the third angle along the first direction, the second friction member remains relatively stationary with respect to the base under the action of the third abutting force of the second force-applying member.

[0035] Optionally, the above-described connecting device includes at least one of the following:

[0036] The first braking element contacts the second friction element, and the projections of the first braking element and the second friction element in the direction perpendicular to the axis of the second rotating shaft have no overlapping portion;

[0037] During the process of the first connector rotating relative to the second connector from the second angle to the third angle along the first direction, the torque provided by the first friction member is different from the torque provided by the second friction member.

[0038] An electronic device includes a first body, a second body, and a connecting device, wherein the connecting device includes:

[0039] The first connector connects to the first body;

[0040] The second connector is rotatably connected to the first connector and is connected to the second body.

[0041] The torque assembly is capable of providing torque during the relative rotation of the first connector and the second connector;

[0042] During the process of the first connector rotating relative to the second connector from a first angle to a second angle along a first direction, the torque component provides a first torque, and the second angle is greater than the first angle;

[0043] During the process of the first connector rotating relative to the second connector from the second angle to the first angle along the second direction, the torque component provides a second torque, the second direction being opposite to the first direction, and the second torque being greater than the first torque;

[0044] During the process of the first connector rotating relative to the second connector from the second angle to the third angle along the first direction, the torque component provides a third torque, which is greater than the first torque, and the third angle is greater than the second angle. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0046] Figure 1This is a schematic diagram of an electronic device according to an embodiment of this application;

[0047] Figure 2 This is a schematic diagram of the switching state of an electronic device according to an embodiment of this application;

[0048] Figure 3 This is a schematic diagram of another state of an electronic device according to an embodiment of this application;

[0049] Figure 4 This is a schematic diagram of yet another state of an electronic device according to an embodiment of this application;

[0050] Figure 5 This is a schematic diagram of a connection device according to an embodiment of this application;

[0051] Figure 6 yes Figure 5 An exploded view of the torsion component in the structure shown.

[0052] Figure 7 This is an assembly diagram of the torque assembly according to an embodiment of this application;

[0053] Figure 8 This is a schematic diagram illustrating the working principle of the torque assembly according to an embodiment of this application;

[0054] Figure 9 This is a schematic diagram showing the relationship between the torque and angle of the torque component during the process of turning on an electronic device;

[0055] Figure 10 This is a schematic diagram showing the relationship between the torque and angle of the torque component during the closing of electronic devices.

[0056] Figure 11 This is a schematic diagram of a connection device according to an embodiment of this application;

[0057] Figure 12 This is a schematic diagram of an electronic device according to an embodiment of this application.

[0058] The diagram is marked as follows:

[0059] 100. First body; 200. Second body; 300. Connecting device;

[0060] 310, First connecting member; 320, Second connecting member; 330, First friction member; 330a, Snap-fit ​​part; 340, Second friction member; 350, First rotating shaft; 360, Second rotating shaft; 370, Abutting member; 380, Fifth friction member; 390, Base;

[0061] 331. First force-applying component; 332. First braking component; 332a. First groove; 333. First driving component; 334. Third friction component;

[0062] 341. Second force-applying component; 342. Second braking component; 343. Second driving component; 344. Fourth friction component;

[0063] 391. First stop; 392. Second stop;

[0064] 400. Display screen; 410. First display area; 420. Second display area; 430. Third display area;

[0065] A. Torque unit; B. Synchronous motion unit; C. Connection unit; D. Marker point;

[0066] α, opening angle; K1, first direction; K2, second direction; S1, first axis; S2, second axis. Detailed Implementation

[0067] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0068] In the description of this application, the references to terms such as "one embodiment," "some embodiments," "example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0069] In the description of this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0070] In related technologies, to enable one-handed opening of electronic devices, the connecting device between the two rotating parts is typically designed as a "light opening, heavy closing" type. That is, the torque of the connecting device is small when rotating in the opening direction and large when rotating in the closing direction. However, because the torque of the connecting device is relatively small when rotating in the opening direction, and because electronic devices are limited by the design requirement that the rotating parts cannot rotate under their own weight, the maximum opening angle of electronic devices cannot be made very large. This results in users' needs for more diverse usage modes of electronic devices not being well met.

[0071] In view of this, see Figures 1-12 This application provides a connecting device 300, which may include a first connecting member 310, a second connecting member 320, and a torque assembly. The second connecting member 320 is rotatably connected to the first connecting member 310, and the torque assembly provides torque during the relative rotation of the first connecting member 310 and the second connecting member 320. During the rotation of the first connecting member 310 relative to the second connecting member 320 along a first direction K1 from a first angle to a second angle, the torque assembly provides a first torque, and the second angle may be greater than the first angle. During the rotation of the first connecting member 310 relative to the second connecting member 320 along a second direction K2 from a second angle to a first angle, the torque assembly provides a second torque, where the second direction K2 may be opposite to the first direction K1, and the second torque may be greater than the first torque. During the rotation of the first connecting member 310 relative to the second connecting member 320 along the first direction K1 from a second angle to a third angle, the torque assembly provides a third torque, where the third torque may be greater than the first torque, and the third angle may be greater than the second angle.

[0072] The first connector 310 and the second connector 320 of the connecting device 300 can be used to connect two objects that require relative rotation. The connecting device 300 provides rotational functionality to the two connected objects through the relative rotation of the first connector 310 and the second connector 320. For example, the first connector 310 and the second connector 320 can be used to connect the first body 100 and the second body 200 of an electronic device, respectively. Thus, the first body 100 and the second body 200 of the electronic device can achieve opening and closing movements through the connecting device 300; that is, the opening angle α of the first body 100 relative to the second body 200 can be changed based on the relative rotation of the first connector 310 and the second connector 320. See also... Figure 1 and Figure 5To clearly describe the working principle of the connecting device 300, the angle between the first connector 310 and the second connector 320 is represented by the opening angle α of the first body 100 relative to the second body 200. That is, the opening angle α of the first body 100 relative to the second body 200 and the angle of the first connector 310 relative to the second connector 320 can satisfy the condition of equality.

[0073] The angle between the first connector 310 and the second connector 320 can switch between at least a first angle, a second angle, and a third angle, wherein the first angle, the second angle, and the third angle increase sequentially. For example, the first angle, the second angle, and the third angle can be 0°, 90°, and 360°, respectively, or they can be 10°, 120°, and 180°, respectively. During the angle increase, the first connector 310 rotates relative to the second connector 320 along a first direction K1; conversely, during the angle decrease, the first connector 310 rotates relative to the second connector 320 along a second direction K2. When the first connector 310 and the second connector 320 rotate relative to each other or have a tendency to rotate relative to each other, the resistance exhibited by the connecting device 300 to this rotation or rotation tendency can be called the torque of the connecting device 300, and at least a portion of the torque of the connecting device 300 can be provided by a torque assembly.

[0074] Since the torque component can provide a first torque and a second torque respectively during the switching process between the first connector 310 and the second connector 320 along opposite first directions K1 and second directions K2, and the second torque is greater than the first torque, the connecting device 300 of this application can achieve the effect of "light opening and heavy closing". That is, during the process of the angle between the first connector 310 and the second connector 320 gradually increasing from the first angle to the second angle, the torque of the connecting device 300 is relatively small, while during the process of the angle gradually decreasing from the second angle to the first angle, the torque of the connecting device 300 is relatively large.

[0075] Meanwhile, the torque assembly is also configured to provide a third torque greater than the first torque during the transition from the second angle to the third angle between the first connector 310 and the second connector 320. That is, during the process of the first connector 310 rotating relative to the second connector 320 from the first angle to the third angle along the first direction K1, the torque assembly can provide a relatively small first torque in the early stage and a relatively large third torque in the later stage. In this way, while the connecting device 300 uses the first torque of the torque assembly to achieve the "light opening" effect, it can also use the third torque of the torque assembly to increase the torque, so as to achieve the "heavy opening" effect after the angle is greater than the second angle. This can meet the design requirement that the rotating part of the electronic device does not rotate under its own weight, thereby allowing the maximum opening angle of the electronic device to be larger and supporting hovering at more opening angles, so as to better meet the user's needs for more usage forms of the electronic device.

[0076] In some embodiments, the connecting device 300 may be configured to include at least one of the following: the first angle may be 0°; the second angle may be less than 180°; the third torque may be equal to the second torque; during the process of the first connecting member 310 rotating relative to the second connecting member 320 from the third angle to the second angle along the second direction K2, the torque component may provide a fourth torque, which may be equal to the second torque.

[0077] See Figure 1 , Figure 5 , Figure 9 and Figure 10 The values ​​of the first angle, the second angle, and the third angle can be flexibly set as needed. For example, the first angle can be 0°. In this way, the torque component can participate in achieving the "light opening" effect as early as possible by rotating relative to the first connector 310 and the second connector 320 from a 0° angle. Moreover, after the first connector 310 and the second connector 320 are closed to a small angle close to 0° (e.g., 5° or 10°), the connecting device 300 can still use the torque component to achieve the "heavy closing" effect, so that the final stage of the closing process remains smooth.

[0078] Of course, the first angle can also be set to other values, such as 5°, 10°, etc. In this way, the torque component can participate in achieving the "light opening" effect after the first connector 310 and the second connector 320 are opened to a small angle (i.e., the first angle). Before this small angle, the connecting device 300 can use other components of the torque unit A (such as the fifth friction member 380 described later) to achieve the "light opening" effect. In such an embodiment, after the first connector 310 and the second connector 320 are closed to this small angle, the "heavy closing" effect of the connecting device 300 can be weakened, that is, the final stage of the closing process can become a smaller torque, so that the electronic device can use the gravity of the first body 100 or the second body 200 itself to complete the final stage of automatic closing.

[0079] As an example, the second angle could be 90°. After the first connector 310 and the second connector 320 open by 90°, the connecting device 300 can then achieve a "heavy opening" effect due to the third torque provided by the torque assembly. That is, the first connector 310 and the second connector 320 can continue to open from 90° to a greater torque. See also... Figure 1 and Figure 2 After the first connector 310 and the second connector 320 are opened to an angle of more than 90°, the weight of the first body 100 itself will generate a torque that causes the first connector 310 to continue to open relative to the second connector 320 in the first direction K1. By setting the second angle to 90°, the torque of the connecting device 300 can be increased earlier by utilizing the third torque provided by the torque component, thereby resisting the torque generated by the weight of the first body 100 itself, so that the first body 100 can be hovered more stably at an angle greater than 90° (e.g., 90°~120°) relative to the second body 200.

[0080] Of course, the second angle can also be set to other values, such as 80°, 100°, 120°, 135°, etc. See also Figure 1 and Figure 2After the first connector 310 and the second connector 320 are opened to an angle exceeding 90°, before the angle increases to 180°, the torque generated by the weight of the first body 100 itself, causing the first connector 310 to continue opening relative to the second connector 320 along the first direction K1, increases with the increase of the angle. In the initial stage after the angle exceeds 90° (e.g., within the range of 90° to 120°), since the lever arm of the weight of the first body 100 itself relative to the rotation axis of the first body 100 and the second body 200 is relatively small, the aforementioned torque generated by the weight of the first body 100 itself is relatively small. Therefore, within this angle range, it is not necessary to use the third torque provided by the torque assembly; instead, the first torque provided by the torque assembly, which is smaller than the third torque, can be used to resist the aforementioned torque generated by the weight of the first body 100 itself. That is to say, in embodiments where the second angle is set to a relatively large value such as 120° or 135°, the first torque provided by the torque assembly by the connecting device 300 can satisfy the first body 100 being suspended at an angle between 90° and the second angle relative to the second body 200.

[0081] As an example, the third angle can be 360°, which allows the first body 100 and the second body 200 of the electronic device to rotate relative to each other within a larger range, thus facilitating more diverse forms of the electronic device. Of course, the third angle can also be set to other values, such as 340°, 270°, 180°, 160°, etc.

[0082] The third and second torques can be configured to satisfy an equal condition, meaning that, starting from the second angle, whether the first connector 310 and the second connector 320 rotate in the direction of decreasing angle or increasing angle, the torque values ​​provided by the torque assembly are equal or approximately equal. This configuration facilitates achieving relatively large torques in two opposite rotational processes using the same assembly, eliminating the need for separate assemblies for each process. This simplifies the structure of the torque assembly, reduces its manufacturing difficulty, and minimizes its space requirements. Of course, if space and other factors permit, the third and second torques can also be configured to satisfy unequal conditions; the torque value of the third torque can be greater than or less than the torque value of the second torque, as long as both the second and third torque values ​​are greater than the torque value of the first torque.

[0083] The third and fourth torques can be configured to satisfy an equality condition, meaning that during the switching between the second and third angles of the angle between the first connector 310 and the second connector 320, whether the first connector 310 rotates relative to the second connector 320 along the first direction K1 (i.e., the opening direction) or the first connector 310 rotates relative to the second connector 320 along the second direction K2 (i.e., the closing direction), the torque values ​​provided by the torque assembly are equal or approximately equal. This configuration simplifies the structural composition of the torque assembly, reduces its manufacturing difficulty, and decreases its space requirements. Of course, if space and other factors permit, the third and fourth torques can also be configured to satisfy unequal conditions.

[0084] The fourth torque and the second torque can be configured to satisfy the condition of equality, that is, the torque magnitude of the torque component does not change during the entire rotation process of switching from the third angle to the first angle. This allows the operating force of the operating connection device 300 to remain basically consistent throughout the entire rotation process, which helps the user to more smoothly and easily complete the operation of switching the first connector 310 and the second connector 320 from the third angle to the first angle. See also Figure 9 and Figure 10 In some embodiments, the first torque can be set to torque value 'a', and the second, third, and fourth torques can all be set to torque value 'b', where torque value 'b' is greater than torque value 'a'. For example, torque values ​​'a' and 'b' can be 0.2 Nm and 0.4 Nm respectively, or 0.1 Nm and 0.3 Nm respectively, etc. Of course, in other embodiments, the fourth torque and the second torque can also be configured to satisfy unequal conditions. For example, the fourth torque can be set to be less than the second torque, so that during the initial stage of switching from the third angle to the first angle, the user can operate the first body 100 to rotate relative to the second body 200 with less effort.

[0085] In some embodiments, the torque assembly may include a base 390, a first rotating shaft 350, a first friction element 330, and a first force-applying element 331. The first rotating shaft 350 is rotatably connected to the base 390 and is relatively fixed to the first connecting member 310. The first friction element 330 is rotatably connected to the first rotating shaft 350. The first force-applying element 331 is movably disposed on the base 390 and abuts against the first friction element 330. During the rotation of the first connecting member 310 relative to the second connecting member 320 along a first direction K1 from a first angle to a second angle, the first friction element 330 remains relatively stationary with respect to the first rotating shaft 350. During the rotation of the first connecting member 310 relative to the second connecting member 320 along the first direction K1 from a second angle to a third angle, the first friction element 330 remains relatively stationary with respect to the base 390 under the action of the first abutting force of the first force-applying element 331.

[0086] See Figures 1-8 The base 390 can be the basic component of the connecting device 300. The first rotating shaft 350 can rotate relative to the base 390 around the first axis S1 (i.e., the axis of the first rotating shaft 350). During the rotation of the first rotating shaft 350, the first connecting member 310 is relatively fixed to the first rotating shaft 350, that is, the first connecting member 310 can rotate relative to the base 390 together with the first rotating shaft 350. The connecting device 300 can be a single-axis type (i.e., only one rotating shaft) or a double-axis type (i.e., two rotating shafts), and this application does not limit this. In the embodiment where the connecting device 300 is a single-axis type, the second connecting member 320 can be fixedly disposed on the base 390. In the embodiment where the connecting device 300 is a double-axis type, the second connecting member 320 can be rotatably connected to the base 390.

[0087] The first friction member 330 is rotatably connected to the first rotating shaft 350. During the relative rotation of the first friction member 330 and the first rotating shaft 350, the friction force generated between the first friction member 330 and the first rotating shaft 350 and / or other components fixedly disposed on the first rotating shaft 350 (such as the third friction member 334 described later) can provide the torque of the torque assembly. The first force-applying member 331 is movably disposed on the base 390 and abuts against the first friction member 330. When the first force-applying member 331 is stationary relative to the base 390 and the abutting force between the first force-applying member 331 and the first friction member 330 is sufficiently large, the abutting force applied by the first force-applying member 331 to the first friction member 330 can be used to keep the first friction member 330 stationary relative to the base 390 together with the first force-applying member 331. When the contact force is insufficient to keep the first friction member 330 stationary relative to the base 390 along with the first force-applying member 331, the first friction member 330 can rotate relative to the base 390 along with the first rotating shaft 350.

[0088] During the rotation of the first connecting member 310 relative to the second connecting member 320 from a second angle to a third angle along the first direction K1, the first force-applying member 331 can apply a first abutting force to the first friction member 330. This first abutting force can keep the first friction member 330 relatively stationary with the base 390, thereby causing the first friction member 330 and the first rotating shaft 350 to rotate relative to each other during the above process. In this way, the friction force generated between the first friction member 330 and the first rotating shaft 350 and / or other components fixedly mounted on the first rotating shaft 350 can generate a large torque. However, during the rotation of the first connecting member 310 relative to the second connecting member 320 from a first angle to a second angle along the first direction K1, the abutting force between the first force-applying member 331 and the first friction member 330 is insufficient to keep the first friction member 330 relatively stationary with the base 390. Therefore, the first friction member 330 can rotate with the first rotating shaft 350 relative to the base 390, that is, the first friction member 330 and the first rotating shaft 350 remain relatively stationary. During this process, the torque generated by the torque component is relatively small.

[0089] In some embodiments, the connecting device 300 can be configured such that, during the rotation of the first connecting member 310 relative to the second connecting member 320 from a third angle to a second angle along the second direction K2, the first friction member 330 can remain relatively stationary with respect to the base 390 under the action of the second abutting force of the first force-applying member 331, wherein the second abutting force is in a different direction from the first abutting force. That is, both the second abutting force and the first abutting force are sufficient to keep the first friction member 330 relatively stationary with respect to the base 390, thereby generating a large torque in the torque assembly, but the directions of the second abutting force and the first abutting force are different. For example, the second abutting force and the first abutting force can be configured to point to opposite sides of the axis of the first rotating shaft 350, respectively. Of course, in other embodiments, the second abutting force and the first abutting force can be set to have the same direction; for example, the second abutting force and the first abutting force can both point to the axis of the first rotating shaft 350, that is, the line of force of the abutting force of the first force-applying member 331 on the first friction member 330 passes through the axis of the first rotating shaft 350.

[0090] In some embodiments, the connecting device 300 may include a first braking member 332 that is tractively connected to the first rotating shaft 350. During the process of the first connecting member 310 rotating relative to the second connecting member 320 from a first angle to a second angle along the first direction K1, the first braking member 332 may be in a first target state with the first force-applying member 331 to allow the first force-applying member 331 to move relative to the base 390. During the process of the first connecting member 310 rotating relative to the second connecting member 320 from a second angle to a third angle along the first direction K1, the first braking member 332 may be in a second target state with the first force-applying member 331 to restrict the movement of the first force-applying member 331 relative to the base 390.

[0091] The first braking element 332 can be connected to the first rotating shaft 350 for transmission, so that the rotation of the first rotating shaft 350 can actuate the first braking element 332. The actuation of the first braking element 332 can create different target states with the first force-applying element 331; that is, the first braking element 332 and the first force-applying element 331 can switch between a first target state and a second target state through the actuation of the first braking element 332. In the second target state, the first braking element 332 brakes the first force-applying element 331, restricting its movement relative to the base 390. In the first target state, the first braking element 332 no longer restricts the movement of the first force-applying element 331 relative to the base 390. In other words, in the second target state, the braking force applied by the first braking member 332 to the first force-applying member 331 is sufficient to resist the force exerted by the first friction member 330 on the first force-applying member 331, so that the first force-applying member 331 is not driven by the first friction member 330. Thus, the abutting force of the first force-applying member 331 on the first friction member 330 can prevent the first friction member 330 from rotating relative to the base 390 with the first rotating shaft 350, but instead keeps it stationary relative to the base 390 together with the first force-applying member 331.

[0092] By setting the first brake element 332 to be connected to the first rotating shaft 350, the first brake element 332 can be automatically driven during the rotation of the first rotating shaft 350. This makes it easier to achieve a more precise match between the timing of the switching between the first friction element 330 being stationary and rotating relative to the first rotating shaft 350 and the rotation angle of the first connecting element 310, and eliminates the need for an additional drive device to drive the first brake element 332.

[0093] In some embodiments, the first force-applying member 331 may be configured to be rotatably connected to the base 390. A first driving member 333 may be provided between the first force-applying member 331 and the base 390. The first driving member 333 can provide a driving force to rotate the first force-applying member 331 relative to the base 390. The surface of the first braking member 332 may have a first groove 332a. The first groove 332a can provide a space for movement at the end of the first force-applying member 331 away from the first friction member 330. When the first braking member 332 and the first force-applying member 331 are in the second target state, the end of the first force-applying member 331 away from the first friction member 330 can abut against the area of ​​the surface of the first braking member 332 located outside the first groove 332a.

[0094] See Figure 7 and Figure 8As the first brake 332 moves, the positional relationship between the first groove 332a on the surface of the first brake 332 and the end of the first force-applying member 331 away from the first friction member 330 changes. When the first brake 332 and the first force-applying member 331 are in the first target state, the end of the first force-applying member 331 away from the first friction member 330 is located in the first groove 332a, and the first brake 332 does not restrict the first force-applying member 331 from rotating relative to the base 390. When the first brake 332 and the first force-applying member 331 are in the second target state, the end of the first force-applying member 331 away from the first friction member 330 is no longer located in the first groove 332a, but is subjected to the abutting force of the area of ​​the surface of the first brake 332 outside the first groove 332a. The first brake 332 exerts a braking effect on the first force-applying member 331 through this abutting force, so that the first force-applying member 331 is stationary relative to the base 390.

[0095] The driving force of the first driving member 333 on the first force-applying member 331 can cause the first force-applying member 331 to abut against the first friction member 330. As an example, the first driving member 333 can be set as a torsion spring. Of course, in other embodiments, the first driving member 333 can also be set as other forms such as a compression spring, a spring sheet, or a tension spring. In addition, in other embodiments, the movement of the first force-applying member 331 relative to the base 390 can be set as other forms. For example, the first force-applying member 331 can be configured to be slidably connected to the base 390, and the first force-applying member 331 can move closer to and further away from the first friction member 330 in the direction of sliding relative to the base 390.

[0096] See Figures 5-8 In some embodiments, the outer peripheral surface of the first friction member 330 may be provided with a plurality of circumferentially arranged locking portions 330a. During the rotation of the first connecting member 310 relative to the second connecting member 320 along the second direction K2, the locking portions 330a can engage with the first force-applying member 331, so that both the first force-applying member 331 and the first friction member 330 can remain relatively stationary with respect to the base 390. During the rotation of the first connecting member 310 relative to the second connecting member 320 from a first angle to a second angle along the first direction K1, the first force-applying member 331 can overcome the driving force of the first driving member 333 and rotate relative to the base 390 under the action of the locking portions 330a. By providing locking portions 330a on the outer peripheral surface of the first friction member 330, and utilizing the engagement of the locking portions 330a with the first force-applying member 331, it is easier to achieve the goal of keeping the first friction member 330 relatively stationary with respect to the base 390 during the rotation of the first connecting member 310 relative to the second connecting member 320 along the second direction K2.

[0097] In some embodiments, the engaging portion 330a can be configured as a toothed shape that is circumferentially inclined relative to the outer peripheral surface of the first friction member 330. This allows the first friction member 330 to be constructed as a ratchet structure, making it easier for the first friction member 330 to rotate against the inclined direction of the engaging portion 330a, and the reverse rotation can be more firmly engaged with the first force-applying member 331 through the engaging portion 330a. Of course, in other embodiments, the engaging portion 330a can be configured as other shapes, for example, it can be configured as a toothed shape that protrudes radially along the first friction member 330, as long as the engaging portion 330a can engage with the first force-applying member 331 during the rotation of the first connecting member 310 relative to the second connecting member 320 along the second direction K2, so that both the first force-applying member 331 and the first friction member 330 remain relatively stationary with respect to the base 390.

[0098] Of course, in other embodiments, the outer peripheral surface of the first friction member 330 may not have a snap-fit ​​portion 330a. For example, the outer peripheral surface of the first friction member 330 may not have a protruding structure. However, in such an embodiment, the first force-applying member 331 needs to apply a relatively large abutting force to the outer peripheral surface of the first friction member 330 in order to keep the first friction member 330 stationary relative to the base 390.

[0099] In some embodiments, the connecting device 300 may include a first stop 391 fixedly disposed on the base 390, and the driving force of the first driving member 333 may be used to rotate the first force-applying member 331 toward the first stop 391. See also Figure 7 and Figure 8 When the first friction member 330 applies a driving force to the first force-applying member 331 to rotate the first stop member 391, the first stop member 391 blocks the rotation path of the first force-applying member 331, thus preventing the first force-applying member 331 from rotating. This allows the first friction member 330 and the first force-applying member 331 to remain more stably stationary relative to the base 390. On the other hand, since the driving force of the first drive member 333 can rotate the first force-applying member 331, it would be difficult to install the first drive member 333 and the first force-applying member 331 onto the base 390 without the first stop member 391. Additional tooling is often required to secure the installed first force-applying member 331. By using the first stop member 391, the hassle of using additional tooling to secure the first force-applying member 331 is eliminated, making the assembly of the torque assembly much easier.

[0100] In some embodiments, the connecting device 300 may include a second rotating shaft 360 rotatably connected to the base 390. The second rotating shaft 360 may be fixed relative to the second connecting member 320, and the first braking member 332 may be fixed relative to the second rotating shaft 360. That is, the connecting device 300 may be configured as a dual-shaft structure, and the first braking member 332 may be drivenly connected to the first rotating shaft 350 via the second rotating shaft 360. In this way, the linkage between the first rotating shaft 350 and the second rotating shaft 360 can realize the rotation of the first rotating shaft 350 to drive the first braking member 332 to move relative to the base 390. With this configuration, the second rotating shaft 360 can be used as a component of the transmission structure between the first rotating shaft 350 and the first braking member 332, thereby simplifying the transmission structure.

[0101] In some embodiments, the connecting device 300 may include a second friction element 340 and a second force-applying element 341, wherein the second friction element 340 may be rotatably connected to the second rotating shaft 360, and the second force-applying element 341 is movably disposed on the base 390 and may abut against the second friction element 340. During the process of the first connecting member 310 rotating relative to the second connecting member 320 along the first direction K1 from a first angle to a second angle, the second friction element 340 may remain relatively stationary with respect to the second rotating shaft 360; during the process of the first connecting member 310 rotating relative to the second connecting member 320 along the first direction K1 from a second angle to a third angle, the second friction element 340 may remain relatively stationary with respect to the base 390 under the action of the third abutment force of the second force-applying element 341. The design principle of the second friction element 340 can be the same as that of the first friction element 330, and the design principle of the second force-applying element 341 can be the same as that of the first force-applying element 331. Therefore, the setting method and working principle of the second friction element 340 and the second force-applying element 341 can be referred to the previous introduction of the first friction element 330 and the first force-applying element 331.

[0102] In some embodiments, the first braking element 332 may contact the second friction element 340, and the first braking element 332 and the second friction element 340 may be configured such that their projections along a direction perpendicular to the axis of the second rotating shaft 360 do not overlap. In such an embodiment, the first braking element 332 can act as another friction element in contact with the second friction element 340, thus enriching the function of the first braking element 332 and enabling the torque assembly to achieve a larger torque with fewer components. Simultaneously, since the projections of the first braking element 332 and the second friction element 340 along a direction perpendicular to the axis of the second rotating shaft 360 (i.e., the second axis S2) do not overlap, it is beneficial to reduce the space occupied by the torque assembly in the axial direction of the second rotating shaft 360, thereby allowing the overall axial dimension of the connecting device 300 to be smaller, for example, in... Figure 6 and Figure 7 In the exemplary embodiment shown, the first braking element 332 and the second friction element 340 can both be configured to be generally annular. The two ends of the first braking element 332 in the axial direction of the second rotating shaft 360 can be configured as planes. The two ends of the second friction element 340 in the axial direction of the second rotating shaft 360 can be configured as planes. The first braking element 332 and the second friction element 340 can be stacked along the axial direction of the second rotating shaft 360. The projections of the first braking element 332 and the second friction element 340 in the direction perpendicular to the second axis S2 have no overlapping portions.

[0103] In some embodiments, the connecting device 300 may include a second braking member 342 that is tractively connected to the second rotating shaft 360. During the rotation of the first connecting member 310 relative to the second connecting member 320 along the first direction K1 from a first angle to a second angle, the second braking member 342 may be in a third target state with the second force-applying member 341 to allow the second force-applying member 341 to move relative to the base 390. During the rotation of the first connecting member 310 relative to the second connecting member 320 along the first direction K1 from a second angle to a third angle, the second braking member 342 may be in a fourth target state with the second force-applying member 341 to restrict the movement of the second force-applying member 341 relative to the base 390. The design principle of the second braking member 342 can be the same as that of the first braking member 332; therefore, the arrangement and working principle of the second braking member 342 can be referred to the previous description of the first braking member 332.

[0104] In some embodiments, the second force-applying member 341 can be configured to be rotatably connected to the base 390. A second driving member 343 can be provided between the second force-applying member 341 and the base 390, and the second driving member 343 can provide a driving force to rotate the second force-applying member 341 relative to the base 390. The surface of the second braking member 342 can have a second groove (not marked in the figure). The second groove can provide a space for movement of the end of the second force-applying member 341 away from the second friction member 340. When the second braking member 342 and the second force-applying member 341 are in the fourth target state, the end of the second force-applying member 341 away from the second friction member 340 can abut against the area of ​​the surface of the second braking member 342 outside the second groove. The design principle of the second driving member 343 can be the same as that of the first driving member 333. Therefore, the arrangement and working principle of the second driving member 343 can be referred to the previous description of the first driving member 333.

[0105] In some embodiments, the first driving member 333 and the second driving member 343 can be configured to have different driving forces. That is, the first driving force of the first driving member 333 on the first force-applying member 331 can be different from the second driving force of the second driving member 343 on the second force-applying member 341. For example, the first driving force can be set to be greater than the second driving force. As an example, the first driving force and the second driving force can be 0.2 Nm and 0.1 Nm, respectively. In such an embodiment, it is easier for the second rotating shaft 360 to rotate with the second friction member 340 than for the first rotating shaft 350 to rotate with the first friction member 330. That is, the torque required to rotate the first rotating shaft 350 is greater than that required to rotate the second rotating shaft 360. In other words, the first rotating shaft 350 is relatively less likely to be driven by the user's operating force. Therefore, the second body 200 connected to the second connecting member 320, which is relatively fixed to the second rotating shaft 360, can be set as the operating object when the user changes the form of the electronic device. This makes it easier for the user to adjust the form of the electronic device relatively easily during use. Taking a laptop computer as an example, users mainly adjust the form of the electronic device by operating the screen. Therefore, the second body 200 can be set as the screen and the first body 100 can be set as the host.

[0106] For example, the first driving force can be set to be less than the second driving force. In such an embodiment, it is easier for the first rotating shaft 350 to rotate with the first friction member 330 than for the second rotating shaft 360 to rotate with the second friction member 340. The second rotating shaft 360 is relatively less likely to be driven by the user's operating force. Therefore, the first body 100 connected to the first connecting member 310, which is relatively fixed to the first rotating shaft 350, can be set as the object of operation when the user changes the form of the electronic device. Taking a laptop computer as an example, the second body 200 can be set as the host, and the first body 100 can be set as the screen. The user can mainly adjust the form of the electronic device by operating the first body 100.

[0107] In some embodiments, the second braking element 342 may contact the first friction element 330, and the second braking element 342 and the first friction element 330 may be configured such that their projections in a direction perpendicular to the axis of the first rotating shaft 350 do not overlap. In such an embodiment, the second braking element 342 can act as another friction element in contact with the first friction element 330, thus enriching the function of the second braking element 342 and enabling the torque assembly to achieve a larger torque with fewer components. Simultaneously, since the projections of the second braking element 342 and the first friction element 330 in a direction perpendicular to the axis of the first rotating shaft 350 do not overlap, it is beneficial to reduce the space occupied by the torque assembly in the axial direction of the first rotating shaft 350, thereby allowing the overall axial dimension of the connecting device 300 to be smaller.

[0108] In some embodiments, the connecting device 300 may include a second stop 392 fixedly disposed on the base 390, and the driving force of the second driving member 343 may be used to rotate the second force-applying member 341 toward the second stop 392. The function of the second stop 392 is similar to that of the first stop 391 described above, and will not be repeated here.

[0109] See Figures 5-8 The working principle of the motion system composed of the first friction element 330, the first force-applying element 331, the first braking element 332, and the first driving element 333 is the same as that of the motion system composed of the second friction element 340, the second force-applying element 341, the second braking element 342, and the second driving element 343. Therefore, the motion process will be described below using only the motion system containing the first friction element 330 as an example. Figure 8 In the diagram, the angle between the first body 100 and the second body 200 can reflect the angle between the first connector 310 and the second connector 320 of the connecting device 300; the rotation of the second brake 342 can reflect the rotation of the first rotating shaft 350; the rotation of the first brake 332 can reflect the rotation of the second rotating shaft 360; and the mark point D on the first friction member 330 can be used to assist in observing the movement of the first friction member 330.

[0110] During the process of the first connector 310 and the second connector 320 rotating relative to each other from 0° to 90°, the end of the first force-applying member 331 away from the first friction member 330 is located in the first groove 332a of the first brake member 332. The first force-applying member 331 is not constrained by the first brake member 332. During this process, the first friction member 330 is relatively stationary with the first connector 310. The first friction member 330 rotates together with the first rotating shaft 350. The torque of the torque assembly can be provided by the force exerted by the first drive member 333 on the first force-applying member 331. With the first connector 310 and the second connector 320 at a 90° angle, the end of the first force-applying member 331 away from the first friction member 330 is located at the edge of the first groove 332a. As the first connector 310 and the second connector 320 continue to rotate from 90° to an increasing angle, the end of the first force-applying member 331 away from the first friction member 330 slides along the surface of the first brake member 332 to an area outside the first groove 332a. Thus, the end of the first force-applying member 331 away from the first friction member 330 is held against by the first brake member 332. Therefore, the first force-applying member 331 is constrained by the first brake member 332 and cannot move relative to the base 390, thereby preventing the first friction member 330 from moving relative to the base 390.

[0111] During the process of the first connecting member 310 and the second connecting member 320 rotating from 90° to 360° relative to each other, the first friction member 330 does not rotate with the first rotating shaft 350. Therefore, the first friction member 330 and the second braking member 342 rotate relative to each other, and the resulting friction force can provide a large torque.

[0112] During the process of the first connecting member 310 and the second connecting member 320 rotating relative to each other from 360° to 0°, the first friction member 330 does not rotate with the first rotating shaft 350. At different stages of this process, the first force-applying member 331 is subject to different constraints. In the stage from 360° to 90°, the first force-applying member 331 is jointly constrained by the first braking member 332 and the first friction member 330. In the stage from 90° to 0°, the end of the first force-applying member 331 away from the first friction member 330 moves in the first groove 332a of the first braking member 332, and is therefore not constrained by the first braking member 332, but is still constrained by the first friction member 330.

[0113] See Figure 5 and Figure 6 In some embodiments, to increase the torque provided by the first friction member 330, the torque assembly may include a third friction member 334. The third friction member 334 may be fixed relative to the first rotating shaft 350 and in contact with the first friction member 330, and the third friction member 334 may be located on the side of the first friction member 330 facing away from the second brake member 342. In some embodiments, to increase the torque provided by the second friction member 340, the torque assembly may include a fourth friction member 344. The fourth friction member 344 may be fixed relative to the second rotating shaft 360 and in contact with the second friction member 340, and the fourth friction member 344 may be located on the side of the second friction member 340 facing away from the first brake member 332.

[0114] In some embodiments, the connecting device 300 may be configured such that, during the rotation of the first connecting member 310 relative to the second connecting member 320 from a second angle to a third angle along a first direction K1, the torque provided by the first friction member 330 is different from the torque provided by the second friction member 340. For example, the torque assembly may only include one of the third friction member 334 and the fourth friction member 344, without the other, thereby making the torque provided by the first friction member 330 different from the torque provided by the second friction member 340. Of course, in some embodiments, the connecting device 300 may also be configured such that, during the rotation of the first connecting member 310 relative to the second connecting member 320 from a second angle to a third angle along a first direction K1, the torque provided by the first friction member 330 is the same as the torque provided by the second friction member 340.

[0115] See Figure 5 and Figure 11The connecting device 300 may include a connecting unit C and a torque unit A. The connecting unit C may include a first connecting member 310 and a second connecting member 320. The torque unit A may include a torque assembly. The torque unit A may also include an abutment member 370 and a fifth friction member 380 disposed on the rotating shaft. The fifth friction member 380 may be circumferentially fixed but axially movable on the rotating shaft. The abutment member 370 may apply an abutment force to the fifth friction member 380 along the axial direction of the rotating shaft, thereby generating friction between the fifth friction member 380 and other components (e.g., the base 390). This friction force may provide torque during the rotation of the rotating shaft relative to the base 390.

[0116] In some embodiments, the abutment 370 can be configured as various forms such as a coil spring or a disc spring assembly. The side of the fifth friction member 380 facing away from the abutment 370 can be provided with a first concave-convex fit structure, and the side of the base 390 that mates with the fifth friction member 380 can be provided with a second concave-convex fit structure. After the first connecting member 310 rotates relative to the second connecting member 320 to the target angle, the fifth friction member 380 can move axially under the abutment force of the abutment 370, thereby forming a locking connection between the first and second concave-convex fit structures. This allows for a more stable positioning of the first connecting member 310 at the target angle relative to the second connecting member 320. As an example, the target angle can be 180°. See [link to relevant documentation]. Figure 3 This makes the electronic device more stable when used in tablet mode.

[0117] In some embodiments, the connecting device 300 may include a synchronous motion unit B, which may include a synchronous motion component. The synchronous motion component can be used to control the first rotating shaft 350 and the second rotating shaft 360 to rotate synchronously in opposite directions; that is, the connecting device 300 can be configured as a dual-axis synchronous motion type. Of course, in other embodiments, the connecting device 300 can also be configured as a dual-axis alternating motion type, that is, the first rotating shaft 350 and the second rotating shaft 360 can rotate alternately. The alternating motion component for implementing dual-axis alternating motion in the connecting device 300 can use a conventional alternating motion control component, which will not be described in detail in this application. See also Figure 5 and Figure 11 In an embodiment where the connecting device 300 is configured as a dual-axis synchronous motion type, the synchronous motion component can be a gear assembly, that is, the first rotating shaft 350 and the second rotating shaft 360 achieve synchronous reverse rotation through a gear transmission mechanism. Of course, in other embodiments, the synchronous motion component can also be configured in other forms, as long as it can control the first rotating shaft 350 and the second rotating shaft 360 to rotate synchronously in opposite directions.

[0118] The component arrangement of the torsion assembly can take many forms; see [link / reference]. Figures 5-7In some embodiments, the position of the first friction member 330 in the axial direction of the first rotating shaft 350 can correspond to the position of the second friction member 340 in the axial direction of the second rotating shaft 360, that is, the first friction member 330 and the second friction member 340 can be configured such that their projections along the direction from the first axis S1 to the second axis S2 have an overlapping portion. Similarly, the position of the first braking member 332 in the axial direction of the first rotating shaft 350 can correspond to the position of the second braking member 342 in the axial direction of the second rotating shaft 360, that is, the first braking member 332 and the second braking member 342 can be configured such that their projections along the direction from the first axis S1 to the second axis S2 have an overlapping portion.

[0119] Of course, when the first friction member 330 and the second friction member 340 are positioned correspondingly in the axial direction, the first brake member 332 and the second brake member 342 may not be positioned correspondingly in the axial direction. That is, the first brake member 332 and the second brake member 342 may be offset in the axial direction, and the projections of the first brake member 332 and the second brake member 342 along the direction from the first axis S1 to the second axis S2 may not overlap. For example, the first brake member 332 may be located on the first side of the first friction member 330 in the axial direction, and the second brake member 342 may be located on the second side of the second friction member 340 in the axial direction. The second side may be opposite to the first side.

[0120] See Figure 11 In some embodiments, the torque assembly may be configured such that the first friction member 330 and the second friction member 340 are offset from each other along the axial direction, the first braking member 332 and the second braking member 342 are offset from each other along the axial direction, the first friction member 330 and the first braking member 332 are positioned correspondingly in the axial direction, and the second friction member 340 and the second braking member 342 are positioned correspondingly in the axial direction.

[0121] See Figures 1-12This application also provides an electronic device, which may include a first body 100, a second body 200 and a connecting device 300. The connecting device 300 may include a first connector 310, a second connector 320 and a torque assembly. The first connector 310 can be connected to the first body 100, the second connector 320 can be connected to the second body 200, and the second connector 320 can be rotatably connected to the first connector 310. The torque assembly can provide torque during the relative rotation of the first connector 310 and the second connector 320. During the process of the first connector 310 rotating relative to the second connector 320 from a first angle to a second angle along the first direction K1, the torque assembly can provide a first torque, and the second angle can be greater than the first angle; during the process of the first connector 310 rotating relative to the second connector 320 from a second angle to a first angle along the second direction K2, the torque assembly can provide a second torque, the second direction K2 can be opposite to the first direction K1, and the second torque can be greater than the first torque; during the process of the first connector 310 rotating relative to the second connector 320 from a second angle to a third angle along the first direction K1, the torque assembly can provide a third torque, the third torque can be greater than the first torque, and the third angle can be greater than the second angle.

[0122] The electronic device can be of various types, such as a laptop computer, a foldable tablet computer, or a foldable mobile phone, and this application does not limit it to any particular type. The structure and working principle of the connection device 300 can be found in the description of the connection device 300 in the preceding embodiments, and will not be repeated here. Since the connection device 300 disclosed in the above embodiments has the aforementioned technical effects, electronic devices having this connection device 300 also have the aforementioned technical effects, and will not be repeated here.

[0123] See Figure 12 In some embodiments, the electronic device may include a display screen 400, which may have a first display area 410, a second display area 420, and a third display area 430. A first body 100 may be connected to the first display area 410, a second body 200 may be connected to the second display area 420, and the third display area 430 may be correspondingly disposed with a connecting device 300. The third display area 430 is capable of deformation. The connecting device 300 provides a supporting force to maintain the current deformation of the third display area 430 when it is in a hovering state through the first body 100 and the second body 200.

[0124] Of course, in other embodiments, the display screen can be configured in other forms. For example, the display screen may include a first display screen and a second display screen that are independent of each other. The first display screen may be fixed to the first body 100, and the second display screen may be fixed to the second body 200. That is, the electronic device can be configured as a device with dual display screens.

[0125] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0126] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connecting device, comprising: a first connecting member; a second connecting member rotatably connected with the first connecting member; a torsion assembly configured to provide a torsion during a relative rotation between the first connecting member and the second connecting member; wherein the torsion assembly provides a first torsion during a rotation of the first connecting member relative to the second connecting member from a first angle to a second angle in a first direction, the second angle being greater than the first angle; the torsion assembly provides a second torsion during a rotation of the first connecting member relative to the second connecting member from the second angle to the first angle in a second direction opposite to the first direction, the second torsion being greater than the first torsion; the torsion assembly provides a third torsion during a rotation of the first connecting member relative to the second connecting member from the second angle to a third angle in the first direction, the third torsion being greater than the first torsion, the third angle being greater than the second angle. 2.The connecting device of claim 1, comprising at least one of: the first angle is 0°; the second angle is less than 180°; the third torsion is equal to the second torsion; the torsion assembly provides a fourth torsion during a rotation of the first connecting member relative to the second connecting member from the third angle to the second angle in the second direction, the fourth torsion being equal to the second torsion. 3.The connecting device of claim 1, the torsion assembly comprising: a base; a first rotating shaft rotatably connected with the base, the first rotating shaft being fixed relative to the first connecting member; a first friction member rotatably connected with the first rotating shaft; a first force applying member movably arranged on the base, the first force applying member abutting against the first friction member; wherein the first friction member remains relatively stationary with the first rotating shaft during the rotation of the first connecting member relative to the second connecting member from the first angle to the second angle in the first direction; the first friction member remains relatively stationary with the base under a first abutting force of the first force applying member during the rotation of the first connecting member relative to the second connecting member from the second angle to the third angle in the first direction. 4.The connecting device of claim 3, the first friction member remains relatively stationary with the base under a second abutting force of the first force applying member during the rotation of the first connecting member relative to the second connecting member from the third angle to the second angle in the second direction, the second abutting force being different from the first abutting force; and / or, The connecting device comprises a first brake member in driving connection with the first rotating shaft, during the process that the first connecting member rotates from the first angle to the second angle relative to the second connecting member along the first direction, the first brake member is in a first target state with the first force applying member to allow the first force applying member to move relative to the base, during the process that the first connecting member rotates from the second angle to the third angle relative to the second connecting member along the first direction, the first brake member is in a second target state with the first force applying member to limit the movement of the first force applying member relative to the base.

5. The connecting device according to claim 4, wherein the first force applying member is rotatably connected with the base, and a first driving member is arranged between the first force applying member and the base, the first driving member providing a driving force for rotating the first force applying member relative to the base. The surface of the first brake member has a first groove, the first groove providing a space for the end of the first force applying member away from the first friction member, and in the case that the first brake member is in the second target state with the first force applying member, the end of the first force applying member away from the first friction member abuts against the surface of the first brake member in a region outside the first groove.

6. The connecting device according to claim 5, wherein the outer circumferential surface of the first friction member is provided with a plurality of clamping portions arranged in the circumferential direction, during the process that the first connecting member rotates relative to the second connecting member along the second direction, the clamping portions clamp the first force applying member to make the first force applying member and the first friction member both keep relatively stationary with the base, and during the process that the first connecting member rotates from the first angle to the second angle relative to the second connecting member along the first direction, the first force applying member can rotate relative to the base by overcoming the driving force of the first driving member under the urging of the clamping portions; and / or, The connecting device comprises a first stopper member fixedly arranged on the base, and the driving force of the first driving member is used to rotate the first force applying member towards the first stopper member.

7. The connecting device according to any one of claims 4-6, comprising a second rotating shaft rotatably connected with the base, the second rotating shaft is fixed relative to the second connecting member, and the first brake member is fixed relative to the second rotating shaft.

8. The connecting device according to claim 7, comprising: a second friction member rotatably connected with the second rotating shaft; a second force applying member movably arranged on the base, and the second force applying member abuts against the second friction member; wherein during the process that the first connecting member rotates from the first angle to the second angle relative to the second connecting member along the first direction, the second friction member keeps relatively stationary with the second rotating shaft; during the process that the first connecting member rotates from the second angle to the third angle relative to the second connecting member along the first direction, the second friction member keeps relatively stationary with the base under the third abutting force of the second force applying member.

9. The connecting device of claim 8, comprising at least one of: the first braking member is in contact with the second friction member, and projections of the first braking member and the second friction member along a direction perpendicular to an axis of the second rotating shaft have no overlapping part; the first friction member provides a different torsion force than the second friction member during the rotation of the first connecting member relative to the second connecting member from the second angle to the third angle along the first direction.

10. An electronic device comprising a first body, a second body, and a connecting device, the connecting device comprising: a first connecting member connecting the first body; a second connecting member rotationally connected with the first connecting member, the second connecting member connecting the second body; a torsion assembly capable of providing a torsion force during the relative rotation of the first connecting member and the second connecting member; wherein the torsion assembly provides a first torsion force during the rotation of the first connecting member relative to the second connecting member from a first angle to a second angle along a first direction, the second angle being greater than the first angle; the torsion assembly provides a second torsion force during the rotation of the first connecting member relative to the second connecting member from the second angle to the first angle along a second direction, the second direction being opposite to the first direction, the second torsion force being greater than the first torsion force; the torsion assembly provides a third torsion force during the rotation of the first connecting member relative to the second connecting member from the second angle to a third angle along the first direction, the third torsion force being greater than the first torsion force, the third angle being greater than the second angle.

Images