CN216812500U - Hinge structure and electronic equipment - Google Patents

Abstract

The application discloses hinge structure and electronic equipment relates to electronic equipment technical field. The hinge structure specifically includes: the rotating shaft assembly, the sliding rod and the transmission mechanism; the pivot subassembly includes: the first cam, the second cam and the elastic piece are sequentially sleeved on the rotating shaft; the first cam is fixedly connected with the rotating shaft, one end of the first cam is provided with a guide groove, the second cam is rotatably connected with the rotating shaft, a protruding part is arranged on the end face, in contact with the first cam, of the second cam, the protruding part is matched with the guide groove, one end of the elastic part is connected with the second cam, the other end of the elastic part is in contact with the sliding rod, and the sliding rod is slidably arranged on the rotating shaft; in the process that the first cam rotates relative to the second cam, the transmission mechanism drives the sliding rod to slide along the first direction, so that the elastic piece provides elastic restoring force for the second cam to enable the bulge part to slide into the guide groove; the first direction is the elastic expansion direction of the elastic piece.

Description

Hinge structure and electronic equipment

Technical Field

The application relates to the technical field of electronic equipment, in particular to a hinge structure and electronic equipment.

Background

With the extreme pursuit of the user for the use experience, the foldable electronic device is greatly favored by the user due to the advantages of larger display area and smaller storage volume.

An electronic device of a folding screen generally includes a first device body and a second device body that are foldable relative to each other. In the prior art, the electric driving element is usually used to provide the required driving force for the electronic device to switch between the folded state and the unfolded state, however, the electric driving element not only occupies a large space and volume of the electronic device, resulting in a light and thin design difficulty of the electronic device, but also generates noise during the operation of the electric driving element, which seriously affects the user experience.

SUMMERY OF THE UTILITY MODEL

An object of the embodiments of the present application is to provide a hinge structure and an electronic device, which can solve the problem that the electronic device provides the driving force for switching between the folded state and the unfolded state through an electric driving element.

In a first aspect, an embodiment of the present application provides a hinge structure, where the hinge structure includes: the rotating shaft assembly, the sliding rod and the transmission mechanism;

the pivot subassembly includes: the first cam, the second cam and the elastic piece are sequentially sleeved on the rotating shaft; the first cam is fixedly connected with the rotating shaft, one end of the first cam is provided with a guide groove, the second cam is rotatably connected with the rotating shaft, a protruding part is arranged on the end face, in contact with the first cam, of the second cam, the protruding part is matched with the guide groove, one end of the elastic part is connected with the second cam, the other end of the elastic part is in contact with the sliding rod, and the sliding rod is slidably arranged on the rotating shaft;

in the process that the first cam rotates relative to the second cam, the transmission mechanism drives the sliding rod to slide along a first direction, so that the elastic piece provides elastic restoring force for the second cam to enable the boss to slide into the guide groove; the first direction is an elastic expansion direction of the elastic member.

In a second aspect, an embodiment of the present application provides an electronic device, where the electronic device includes: a first device body, a second device body, and the hinge structure;

the first device body and the second device body are rotatably connected by the hinge structure to switch the electronic device between an unfolded state and a folded state.

In the embodiment of the application, in the process that the first cam of the hinge structure rotates relative to the second cam, the transmission mechanism drives the sliding rod to slide along the first direction, so that the elastic part provides an elastic restoring force for the second cam to enable the protruding part to slide into the guide groove, therefore, when the hinge structure is applied to the electronic equipment of the folding screen, the elastic restoring force of the elastic part in the hinge structure is changed, so that the electronic equipment can be automatically unfolded under the action of the elastic unfolding force of the folding screen, an additional driving part is not needed to be arranged to provide the unfolding driving force for the electronic equipment, the electronic equipment can be made to be more light and thin, the power consumption of the electronic equipment can be reduced, the working noise is reduced, and the use experience of a user is effectively improved.

Drawings

FIG. 1 is a schematic structural diagram of a hinge structure according to an embodiment of the present disclosure;

FIG. 2 is a second schematic structural view of a hinge structure according to an embodiment of the present application;

FIG. 3 is a third schematic structural view of a hinge structure according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a spindle assembly according to an embodiment of the present application;

FIG. 5 is a force diagram illustrating the first cam and the second cam according to the embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of an electronic device in a closing trend phase according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram of an electronic device in a hovering stage according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of an electronic device in an unfolding trend phase according to an embodiment of the present application;

FIG. 9 is a schematic view of a pop-up process of the hinge structure according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Description of reference numerals:

10: a first device main body; 20: a second device main body; 30: a hinge structure; 40: folding the screen; 31: a rotating shaft assembly; 32: a slide bar; 33: a transmission mechanism; 311: a rotating shaft; 312: a first cam; 313: a second cam; 314: an elastic member; 3121: a guide groove; 3122: a guide portion; 3123: a hovering portion; 3131: a boss portion; 331: a worm gear; 332: a worm; 333: a connecting rod assembly; 3331: a first link; 3332: a second link; 341: a chute; 342: a clamping piece; 3421: a buckle structure; 343: a guide member; 345: a limiting part.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Before explaining the hinge structure and the electronic device provided in the embodiment of the present application, an application scenario of the hinge structure and the electronic device provided in the embodiment of the present application is specifically explained:

with the demand of users for large display screens and portability of electronic devices, foldable electronic devices (e.g., foldable screen mobile phones, notebook computers, tablets, etc.) are gaining favor of more and more users. In the prior art, in order to rapidly switch the electronic device between the folded state and the unfolded state, a motor capable of providing an opening/closing driving force is generally added to the electronic device, or a magnetic force between magnetic members is weakened by using a method of driving the magnetic members to move such as a motor. However, the driving members such as the motor not only occupy a larger space of the electronic device, which is not favorable for the light and thin design of the electronic device, but also generate noise when the driving members such as the motor work, which seriously affects the user experience.

Based on the above problem, an embodiment of the present application provides a hinge structure, including: the rotating shaft assembly, the sliding rod and the transmission mechanism; the pivot subassembly includes: the first cam, the second cam and the elastic piece are sequentially sleeved on the rotating shaft; the first cam is fixedly connected with the rotating shaft, one end of the first cam is provided with a guide groove, the second cam is rotatably connected with the rotating shaft, a protruding part is arranged on the end face, in contact with the first cam, of the second cam, the protruding part is matched with the guide groove, one end of the elastic part is connected with the second cam, the other end of the elastic part is in contact with the sliding rod, and the sliding rod is slidably arranged on the rotating shaft; in the process that the first cam rotates relative to the second cam, the transmission mechanism drives the sliding rod to slide along a first direction, so that the elastic piece provides elastic restoring force for the second cam to enable the boss to slide into the guide groove; the first direction is an elastic expansion direction of the elastic member.

In this application embodiment, when hinge structure was applied to the electronic equipment of folding screen, through the elastic restoring force who changes the elastic component among the hinge structure to make electronic equipment can expand automatically under the effect of the elasticity expanding force of folding screen, just so need not to set up extra driving piece and provide the drive power that expandes for electronic equipment, not only can make electronic equipment more frivolous, can also reduce electronic equipment consumption, reduce noise at work, effectively promote user's use and experience.

The hinge structure and the electronic device provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings and specific embodiments and application scenarios thereof.

Referring to fig. 1, there is shown one of the structural schematic diagrams of the hinge structure according to the embodiment of the present application. Referring to fig. 2, a second schematic structural diagram of the hinge structure according to the embodiment of the present application is shown. Referring to fig. 3, a third schematic structural diagram of the hinge structure according to the embodiment of the present application is shown. Referring to fig. 4, a schematic structural diagram of the rotating shaft assembly according to the embodiment of the present application is shown.

In this embodiment, the hinge structure may specifically include: the rotating shaft assembly 31, the sliding rod 32 and the transmission mechanism 33; the spindle assembly 31 includes: a first cam 312, a second cam 313 and an elastic element 314 sequentially sleeved on the rotating shaft 311; wherein, the first cam 312 is fixedly connected with the rotating shaft 311 and one end thereof is provided with a guide groove 3121, the second cam 313 is rotatably connected with the rotating shaft 311, the end surface of the second cam 313 contacting with the first cam 312 is provided with a convex part 3131, the convex part 3131 is matched with the guide groove 3121, one end of the elastic element 314 is connected with the second cam 313, the other end thereof is contacted with the sliding rod 32, and the sliding rod 32 is slidably arranged on the rotating shaft 311; during the rotation of the first cam 312 relative to the second cam 313, the transmission mechanism 33 drives the sliding rod 32 to slide along the first direction, so that the elastic element 314 provides the second cam 313 with an elastic restoring force that enables the protrusion 3131 to slide into the guide groove 3121; the first direction is an elastic expansion and contraction direction of the elastic member 314.

Referring to fig. 1, 2 and 3, there are shown schematic views illustrating different states of the hinge structure during the rotation of the first cam 312 relative to the second cam 313 in the embodiment of the present application. Alternatively, fig. 1 to 3 can be understood as different state diagrams of the electronic device having the hinge structure. Fig. 1 is a schematic structural diagram of a hinge structure when an electronic device is in an unfolded state. Fig. 2 is a schematic structural diagram of the hinge structure when the electronic device is in an extreme compression state of the elastic member 314. Fig. 3 is a schematic view of the hinge structure when the electronic device is in the closed state.

It should be noted that, in the embodiment of the present application, the electronic apparatus may include the first apparatus body 10 and the second apparatus body 20 rotatably connected by the hinge structure. In the embodiment of the present application, the main body may be understood as either one of the first apparatus body 10 or the second apparatus body 20. In the embodiment of the present application, the first cam 312 may be connected to the main body of the electronic device, or the first cam 312 may be connected to the first device body 10 or the second device body 20.

In the present embodiment, the first cam 312 and the second cam 313 can be understood as end-face engagement connection, that is, the protruding portion 3131 and the guiding groove 3121 are complementary structures, and of course, the guiding groove 3121 may have a larger size than the outer contour of the protruding portion 3131. In the present embodiment, the elastic expansion direction of the elastic member 314 can also be understood as the extending direction of the axis of the rotating shaft 311. In the embodiment, the rotating shaft 311 rotates to drive the transmission mechanism 33 to move, and the transmission mechanism 33 drives the sliding rod 32 to slide on the rotating shaft 311 to elastically compress the elastic element 314, so that the protrusion 3131 of the second cam 313 can slide into the guide groove 3121 under the elastic restoring force of the elastic element 314.

In the embodiment of the present application, the elastic restoring force of the elastic element 314 may also be referred to as an elastic restoring force of the elastic element 314, that is, the elastic restoring force of the elastic element 314 is a restoring force after the elastic element 314 is deformed by an external force, and may also be referred to as an elastic force for short.

In practical applications, the elastic member 314 may include, but is not limited to, a spring plate, an elastic column, and the like. In the embodiment of the present application, the elastic member 314 is taken as a spring for explanation, and other references may be implemented.

In the embodiment of the present application, the sliding rod 32 may also be understood as a sliding block, a sliding sheet, etc., which may be set by a person skilled in the art according to practical situations and is not limited specifically herein. Specifically, the sliding rod 32 may be slidably disposed on the rotating shaft 311, for example, a mounting hole of the sliding rod 32 or a mounting groove of the sliding rod 32 may be disposed on the sliding rod 32, and the rotating shaft 311 may be rotatably disposed in the mounting hole of the sliding rod 32 or the mounting groove of the sliding rod 32, so that the rotating shaft 311 may both achieve reliable connection with the sliding rod 32 and support and fix the sliding rod 32, and the rotating shaft 311 may also provide a guiding function for the sliding direction of the sliding rod 32. The elastic member 314 and the sliding rod 32 may be in contact connection or fixed connection, so that during the sliding of the sliding rod 32 on the rotating shaft 311 under the driving action of the transmission mechanism 33, a force is always transmitted to the elastic member 314 to elastically compress the elastic member 314.

In the embodiment of the present application, during the relative rotation of the first cam 312 and the second cam 313, the elastic member 314 is always in an elastically compressed state, so that under the elastic restoring force of the elastic member 314, the rotation of the first cam 312 and the second cam 313 has a damping force, thereby providing a damping feeling to a user. For example, when the hinge structure is applied to an electronic device of a folding screen, the first cam 312 may be connected to the first device main body 10 of the electronic device, and a user applies an external force to the first device main body 10 to rotate the first device main body 10 relative to the second device main body 20, so as to drive the first cam 312 and the rotating shaft 311 to rotate, and during the rotation of the first cam 312 relative to the second cam 313, because the elastic member 314 is elastically compressed, under the action of an elastic restoring force of the elastic member 314, a rotational friction force between the second cam 313 and the first cam 312 is increased, so that the user can experience a damping feel during the rotation, and the electronic device can hover at a preset angle by fully utilizing the elastic restoring force of the elastic member 314.

In the embodiment of the present application, in the process that the first cam 312 rotates relative to the second cam 313, the rotating shaft 311 rotates, and then the transmission mechanism 33 drives the sliding rod 32 to slide along the first direction, so that the elastic element 314 provides the second cam 313 with an elastic restoring force that enables the protrusion 3131 to slide into the guide groove 3121, when the hinge structure is applied to an electronic device of a foldable screen, the elastic restoring force of the elastic element 314 in the hinge structure is changed, so that the electronic device can be automatically unfolded under the action of the elastic unfolding force of the foldable screen, and thus, an additional driving element is not required to be provided to provide an unfolding driving force for the electronic device, which not only enables the electronic device to be more light and thin, but also reduces power consumption of the electronic device, reduces working noise, and effectively improves user experience.

As shown in fig. 1 to 3, the transmission mechanism 33 may specifically include: a worm wheel 331, a worm 332, and a link assembly 333; the worm 332 is connected to the rotating shaft 311 and is rotatable with the rotating shaft 311, the worm 332 is engaged with the worm wheel 331, and the worm wheel 331 drives the slide bar 32 to slide in a first direction through the link assembly 333 to elastically compress the elastic member 314. It should be noted that, in the embodiment of the present application, the worm 332 is coaxially disposed with the rotating shaft 311. In practical application, the rotating shaft 311 and the worm 332 can be an integrated structure, so that the number of parts of the hinge structure and the assembly difficulty are reduced; alternatively, the rotating shaft 311 may be detachably connected to the worm 332, so that the rotating shaft 311 and the worm 332 manufactured in batch in the prior art are used, and the cost of the hinge structure is reduced.

In practical applications, the specific structure of the transmission mechanism 33 can be various. For example, a bevel gear transmission (i.e., a gear transmission between intersecting axes of a pair of bevel gears) may be used instead of the worm gear 331 and the worm 332 transmission in the above embodiments, which can be selected by those skilled in the art according to practical situations and is not limited by the embodiments of the present application.

In the embodiment of the present application, the connecting rod assembly 333 may have a double-rod linkage structure or a three-rod linkage structure. In the embodiment of the present application, a double-lever linkage structure is taken as an example, and the link structure will be briefly described. As shown in fig. 1 to 3, the connecting rod assembly 333 may specifically include: a first link 3331 and a second link 3332, wherein one end of the first link 3331 is connected to the worm wheel 331, the other end is hinged to one end of the second link 3332, and the other end of the second link 3332 is opposite to the sliding rod 32; the rotation shaft 311 sequentially drives the second link 3332 to move in the first direction through the worm 332, the worm wheel 331 and the first link 3331, so that the second link 3332 approaches the slide bar 32 and abuts against the slide bar 32, or moves away from the slide bar 32 and separates from the slide bar 32. In the embodiment of the application, the transmission mechanism 33 composed of the worm wheel 331, the worm 332 and the connecting rod assembly 333 is simple in structure, high in reliability and high in transmission precision.

It should be noted that, in the embodiment of the present application, the connecting rod assembly 333 drives the sliding rod 32 to move, which may also be referred to as a crank-slider mechanism driving the sliding rod 32 to move. In practice, other mechanical coupling structures, such as cam follower mechanisms, may be used with the linkage assembly 333.

In the embodiment of the present application, the second link 3332 may be in an abutting state or a separated state with respect to the sliding rod 32. As shown in fig. 1, the second link 3332 and the slide bar 32 are in contact with each other, and as shown in fig. 3, the second link 3332 and the slide bar 32 are in a separated state.

In the embodiment of the present application, the hinge structure further includes a bracket (not shown), and the bracket is rotatably connected to the rotating shaft 311. The support can play a role in supporting and fixing the transmission mechanism 33, so that the transmission precision of the transmission mechanism 33 is higher and the stability is better. In the embodiment of the present application, the worm gear 331, the first link 3331, the second link 3332, and the like may be provided on the bracket. Specifically, the worm wheel 331 is rotatably disposed on the bracket, and the bracket is provided with a sliding slot 341, and the sliding slot 341 extends along the first direction; the second link 3332 is movably inserted into the sliding groove 341. In the embodiment of the present application, the worm wheel 331 may be rotatably provided on the bracket by a fixing shaft. The sliding groove 341 may function to support, fix, and guide the second link 3332. The second connecting rod 3332 is movably embedded in the sliding groove 341, one end of the second connecting rod 3332 is hinged to the first connecting rod 3331, and the other end of the second connecting rod 3332 extends out of the sliding groove 341 and is opposite to the sliding rod 32. In the process that the worm wheel 331 is driven by the rotating shaft 311 through the worm 332 to rotate, the worm wheel 331 drives the first link 3331 to push the second link 3332 to approach and abut on the sliding rod 32, and push the sliding rod 32 to compress the elastic member 314, or the second link 3332 is far away from the sliding rod 32 and is separated from the sliding rod 32, so that the elastic restoring force of the elastic member 314 is reduced, and then the electronic device is automatically opened by a certain angle under the action of the elastic restoring force of the folding screen.

In the embodiment of the application, the bracket is further provided with a clamping piece 342; the clamping piece 342 is provided with a clamping structure 3421; one end of the sliding rod 32 is provided with a clamping part matched with the clamping structure 3421; the rotation shaft 311 sequentially passes through the worm 332, the worm wheel 331, the first link 3331, and the second link 3332 to drive the sliding rod 32 to slide along the first direction and approach the clamping member 342, so that the clamping portion is clamped to the clamping structure 3421. In the embodiment of the present application, the buckling structure 3421 of the buckling member 342 is matched with the buckling portion of the sliding rod 32, so that the elastic member 314 can be in a state of being stably compressed, that is, the elastic member 314 can provide a stable and constant elastic restoring force to the second cam 313, as shown in fig. 2 and 3.

It should be noted that, in the embodiment of the present application, the clamping member 342 may be an elastic clamping member, and the clamping portion and the buckle structure 3421 are separated from being clamped by elastic deformation of the elastic clamping member; or, the clamping member 342 can be made into a cantilever structure, that is, the clamping structure 3421 of the clamping portion is disposed at the free end of the cantilever structure (the free end is opposite to the fixed end of the cantilever structure, and the fixed end is the end fixedly connected to the bracket), so that the clamping portion is separated from the clamping of the clamping structure 3421 through elastic deformation of the cantilever structure. Of course, the clamping member 342 can also slide on the bracket in the direction away from the sliding rod 32, so as to release the clamping state between the clamping portion and the buckling structure 3421. It should be noted that, in the embodiment of the present application, after the elastic deformation of the clamping member 342 is performed, the buckling structure 3421 of the clamping member 342 is separated from the clamping portion of the sliding rod 32, and the clamping member 342 can be immediately reset. Those skilled in the art can set the structure of the clamping member 342 according to actual situations, and the embodiments of the present application are not described herein again.

In practical applications, in order to facilitate user operations, a trigger button may be further disposed on the body of the electronic device, so that a user can trigger the clip portion to disengage from the clip structure 3421 by the trigger button.

In the embodiment of the present application, in order to make the sliding rod 32 more stable during the sliding process, a guide 343 may be further provided on the bracket, the guide 343 extending in the first direction; the slide bar 32 is slidably disposed on the guide 343. The guide 343 may be specifically a guide pin, a guide post, or the like. The slide bar 32 can be provided with a guide hole, and the guide member 343 (guide pin or guide post) can be slidably arranged in the guide hole, so that the guide member 343 can play a role of supporting and fixing the slide bar 32 on one hand, and can also play a role of guiding and limiting on the other hand, thereby effectively improving the structural stability of the slide bar 32 and avoiding the problem that the displacement deviation of the slide bar 32 causes the loss beyond the compression limit of the elastic member 314.

In the embodiment of the present application, in order to keep the elastic member 314 in an elastically compressed state during the unfolding or folding process of the electronic device, the elastic restoring force provided by the elastic member 314 to the second cam 313 provides a damping feel during the unfolding or folding process of the electronic device, the position of the sliding rod 32 or the elastic member 314 may be limited by the position-limiting portion 345 by providing the position-limiting portion 345 on the bracket or the rotating shaft 311. In the embodiment of the present application, the structure and principle of the position-limiting portion 345 are specifically explained by taking the example that the position-limiting portion 345 is disposed on the bracket.

In practical application, the bracket is also provided with a limit part 345; under the condition that the second link 3332 is separated from the sliding rod 32, the elastic member 314 drives the sliding rod 32 to abut against the position-limiting portion 345, so that the elastic member 314 can always have elastic restoring force, and the electronic device can be provided with unfolding/closing damping force by the elastic restoring force of the elastic member 314. Specifically, the position of the limiting portion 345 may be set according to the magnitude of the damping force required by the user, which is not limited in the embodiment of the present application.

In the embodiment of the present application, by using the variation relationship between the elastic restoring force of the elastic member 314 and the elastic unfolding force of the folding screen in the hinge structure during the unfolding or folding process of the electronic device, the first cam 312 and the second cam 313 can automatically rotate relative to each other when the electronic device is in certain angle ranges, so as to achieve the automatic folding or unfolding of the electronic device. In the embodiment of the present application, in order to make the automatic rotation between the first cam 312 and the second cam 313 smoother, the first cam 312 is further provided with a guide portion 3122 connected to the guide groove 3121; under the elastic restoring force of the elastic member 314, the protrusion 3131 automatically slides into the guide groove 3121 or out of the guide groove 3121 along the guide portion 3122. In the embodiment of the present application, the guide portion 3122 may function as a guide for the automatic rotation of the first cam 312 and the second cam 313, so that the protruding portion 3131 may slide into the guide groove 3121 or slide out of the guide groove 3121 more smoothly.

In the embodiment of the application, the hinge structure can also enable the electronic device to have a hovering effect during the unfolding or closing process. Specifically, the first cam 312 is further provided with a hovering portion 3123 connected to the guide groove 3121; during the rotation of the first cam 312 relative to the second cam 313, the protruding portion 3131 switches between the guide groove 3121 and the hovering portion 3123, so that when the protruding portion 3131 is located at the hovering portion 3123, the electronic device has a hovering effect.

Referring to fig. 5, a schematic diagram of the force applied to the first cam 312 and the second cam 313 in the hinge structure during the relative rotation process in the embodiment of the present application is shown. Fig. 6 to 8 are schematic structural diagrams of the electronic device at different stages of the corresponding unfolding angles. In the embodiment of the present application, the electronic device of the folding screen is mainly affected by the closing moment F (i.e. the elastic restoring force of the elastic member 314) provided by the elastic member 314 to the relative rotation of the first cam 312 and the second cam 313 at the rotating shaft 311 and the elastic unfolding moment Fp of the folding screen during the unfolding process. As shown in fig. 5 and fig. 6, in the embodiment of the present application, when the unfolding angle of the electronic device of the folding screen is in a phase of 0 ° - α 1 (small angle), the electronic device is in a closing trend phase, and has an automatic closing function; as shown in fig. 5 and 7, when the unfolding angle of the electronic device of the folding screen is within a range of α 1 to α 2 (0 ° < α 1 < α 2 < 180 °), the electronic device can hover at any angle within a range of α 1 to α 2, and the electronic device has a hovering function; as shown in fig. 5 and 8, when the unfolding angle of the electronic device of the folding screen is within α 2 to 180 °, the electronic device is in an automatic unfolding trend phase and has an automatic unfolding function.

The principle of the automatic opening of the electronic device in the embodiment of the present application is briefly explained below with reference to the accompanying drawings. In the embodiment of the present application, the elastic unfolding force Fp of the folding screen (which is obtained by converting the elastic moment of the flexible screen or the folding screen) can be understood as a constant value. As shown in fig. 5, the elastic restoring force F of the elastic member 314 may be decomposed into a component F1 and a component F2. Ff may be understood as the sliding friction between the first cam 312 and the second cam 313, where μ is a coefficient μ · F2. When the unfolding angle of the electronic equipment of the folding screen is in a 0-alpha 1 (small angle) stage, the electronic equipment has an automatic closing trend, namely Fp < F1. In the embodiment of the present application, in order to enable the electronic device of the folding screen to be automatically opened in the closed state, Fp > F1+ Ff needs to be satisfied. In practical applications, since the elastic unfolding force Fp of the folding screen can be understood as a constant value, when the elastic restoring force F of the elastic member 314 is reduced, the component forces F1 and F2 of F are reduced simultaneously, that is, F1 and Ff (Ff ═ μ · F2) are reduced simultaneously; when the elastic restoring force F of the elastic member 314 is reduced to a certain value, Fp > F1+ Ff, at this time, the electronic device may implement an automatic unfolding function under the action of the elastic restoring force Fp of the folding screen. In the embodiment of the present application, the electronic device can be automatically unfolded without being driven by an external force by utilizing the change of the elastic restoring force of the elastic element 314 in the hinge structure.

In the embodiment of the present application, fig. 1 to fig. 3 illustrate the process of the movement of the sliding rod 32 and the stress of the elastic member 314 during the process of the electronic device of the folding screen in the embodiment of the present application from the unfolded state to the closed state. As shown in fig. 1, when the electronic device with the folded screen is in the unfolded state, when a human hand rotates the body of the electronic device to move the electronic device towards the closing trend, the first cam 312 rotates randomly to drive the rotating shaft 311 to rotate, the rotating shaft 311 sequentially passes through the worm 332, the worm wheel 331 and the first link 3331 to drive the second link 3332 to move along the first direction towards the direction close to the slide bar 32, until the second link 3332 approaches and abuts against the slide bar 32, and pushes the slide bar 32 to move towards the second cam 313 (the first cam 312) to compress the elastic member 314, as shown in fig. 1; then, the body of the electronic device continues to rotate, and when the maximum stroke of the first link 3331 and the second link 3332 is reached, the clamping portion of the sliding rod 32 is clamped on the clamping structure 3421, and at this time, the sliding rod 32 compresses the elastic member 314 to the maximum compression amount of the elastic member 314 (at this time, the elastic restoring force of the elastic member 314 is maximum), as shown in fig. 2; after the engaging portion of the sliding rod 32 is engaged with the engaging structure 3421, the body of the electronic device continues to rotate until the electronic device is in a closed state, and the second connecting rod 3332 moves in a direction away from the sliding rod 32 and is separated from the sliding rod 32 along with the rotation of the worm gear 331, in this process, since the engaging portion of the sliding rod 32 is engaged with the engaging structure 3421, the elastic restoring force of the elastic member 314 does not change along with the rotation of the rotating shaft 311, and the elastic restoring force of the elastic member 314 is always at a maximum value, as shown in fig. 3, when the electronic device is in a closed stage, the elastic restoring force of the elastic member 314 is at a maximum value, and in order to enable the electronic device to realize an automatic unfolding function, the elastic restoring force of the elastic member 314 needs to be reduced.

Fig. 9 is a schematic structural diagram illustrating a pop-up process of the hinge structure according to the embodiment of the present application. As shown in fig. 9, in the embodiment of the present application, a user can release the clamping portion from the clamping of the fastening structure 3421 by triggering a button or any other manner, the elastic restoring force of the elastic element 314 is reduced, the sliding rod 32 moves in a direction away from the second cam 313 under the action of the elastic unfolding force Fp of the foldable screen, the sliding rod 32 reversely drives the worm wheel 331 to reversely move through the second connecting rod 3332 and the first connecting rod 3331, and further drives the body to automatically spring out for a certain angle through the worm 332, the rotating shaft 311 and the first cam 312, so that the automatic opening function of the electronic device of the foldable screen is realized; then, the user can continue to apply external force to the body to make the expansion angle of the electronic device larger, and the body rotates to sequentially pass through the first cam 312, the rotating shaft 311, the worm 332, the worm wheel 331, the first link 3331 and the second link 3332, to drive the sliding rod 32 to continue to compress the elastic member 314 until the sliding rod 32 is clamped on the clamping member 342, so as to implement the cyclic reciprocation of the processes shown in fig. 1 to 3. In the embodiment of the application, the automatic flicking function of the electronic equipment with the foldable screen triggered by one key of a user can be realized through the trigger button, no additional power source is needed, and the operation is simple and convenient.

In the embodiment of the present application, an external force applied in a process of rotating an electronic device of a folding screen by a human hand is used as a power source, and an axial pressure between a first cam 312 and a second cam 313 in a hinge structure is changed through a worm gear 331, a worm 332 and a connecting rod assembly 333 (a slider-crank mechanism), so that a closing moment of the hinge structure (an elastic restoring force of an elastic member 314) is changed, and automatic opening of the electronic device of the folding screen is realized under an elastic unfolding force of the folding screen. When the folding screen is automatically flicked, the opening function is realized without an additional power source and an additional transmission mechanism 33 arranged at the hinge structure, the structure of the electronic equipment can be more compact, the extremely stacking among all parts in the electronic equipment is facilitated, the movement is stable and reliable, no noise is generated, and the power consumption is low.

In summary, the hinge structure according to the embodiment of the present application at least includes the following advantages:

in this application embodiment, because the first cam of hinge structure is relative to the pivoted in-process of second cam, first cam loops through the pivot, drive mechanism, slide bar elasticity compression elastic component, so that elastic component provides the elastic restoring force that makes the bellying slide to the guide way in for the second cam, therefore, when hinge structure is applied to the electronic equipment of folding screen, through the elastic restoring force that changes elastic component in the hinge structure, thereby make electronic equipment can expand automatically under the effect of the elastic expansion power of folding screen, just so need not to set up extra driving piece and provide the drive power that expandes for electronic equipment, not only can make electronic equipment more frivolous, can also reduce electronic equipment consumption, reduce noise at work, effectively promote user experience.

An embodiment of the present application further provides an electronic device, as shown in fig. 10, the electronic device may specifically include: a first apparatus body 10, a second apparatus body 20, and the hinge structure 30; the first apparatus body 10 and the second apparatus body 20 are rotatably connected by a hinge structure 30 to switch the electronic apparatus between the unfolded state and the folded state.

In the embodiment of the present application, the electronic device includes, but is not limited to, a folding screen mobile phone, a folding notebook computer, a folding tablet computer, and the like.

It should be noted that the hinge structure in the embodiment of the present application has the same structure and principle as those of the hinge structures in the embodiments described above, and specific reference may be made to the embodiments described above, which are not described herein again.

In an embodiment of the present application, the electronic device further includes: and a folding screen 40, the folding screen 40 being connected to the first device body 10 and the second device body 20, respectively, to apply an elastic unfolding force to the first device body 10 and the second device body 20. Specifically, the folding screen 40 includes, but is not limited to, a flexible screen.

In this embodiment, there may be two hinge structures in the electronic device, and the first device main body and the second device main body are respectively connected to the first cam of one hinge structure correspondingly, so that the first device main body and the second device main body can realize a relative rotation function.

It should be noted that, in practical applications, the hinge structure may further include other connecting members to implement the function of rotatably connecting the first device main body and the second device main body by the hinge, and a person skilled in the art may adaptively change the hinge structure on the basis of the foregoing embodiments, which is not described again in this application embodiment.

In this embodiment, because in the electronic device of the folding screen, in the process that the first cam of the hinge structure rotates relative to the second cam, the first cam sequentially passes through the rotating shaft, the transmission mechanism, the elastic element is elastically compressed by the sliding rod, so that the elastic element provides an elastic restoring force for the second cam to enable the protruding part to slide into the guide groove, therefore, in practical application, through changing the elastic restoring force of the elastic element in the hinge structure, so that the electronic device can be automatically unfolded under the action of the elastic unfolding force of the folding screen, so that an additional driving element is not required to be arranged to provide the unfolding driving force for the electronic device, the electronic device can be more light and thin, the power consumption of the electronic device can be reduced, the working noise is reduced, and the user experience is effectively improved.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the utility model is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. A hinge structure, characterized in that it comprises: the rotating shaft assembly, the sliding rod and the transmission mechanism;

the pivot subassembly includes: the first cam, the second cam and the elastic piece are sequentially sleeved on the rotating shaft; the first cam is fixedly connected with the rotating shaft, one end of the first cam is provided with a guide groove, the second cam is rotatably connected with the rotating shaft, a protruding part is arranged on the end face, in contact with the first cam, of the second cam, the protruding part is matched with the guide groove, one end of the elastic part is connected with the second cam, the other end of the elastic part is in contact with the sliding rod, and the sliding rod is slidably arranged on the rotating shaft;

in the process that the first cam rotates relative to the second cam, the transmission mechanism drives the sliding rod to slide along a first direction, so that the elastic piece provides elastic restoring force for the second cam to enable the boss to slide into the guide groove; the first direction is an elastic expansion direction of the elastic member.

2. The hinge structure according to claim 1, wherein the transmission mechanism comprises: a worm gear, a worm, and a linkage assembly;

the worm is connected with the rotating shaft and can rotate along with the rotating shaft, the worm is meshed with the worm wheel, and the worm wheel drives the sliding rod to slide along the first direction through the connecting rod assembly so as to elastically compress the elastic piece.

3. The hinge structure according to claim 2, wherein the link assembly includes: one end of the first connecting rod is connected with the worm gear, the other end of the first connecting rod is hinged with one end of the second connecting rod, and the other end of the second connecting rod is opposite to the sliding rod;

the rotating shaft drives the second connecting rod to move along the first direction sequentially through the worm, the worm wheel and the first connecting rod, so that the second connecting rod is close to the sliding rod and is abutted against the sliding rod, or is far away from the sliding rod and is separated from the sliding rod.

4. The hinge structure of claim 3, further comprising: the bracket is rotatably connected with the rotating shaft;

the worm wheel is rotatably arranged on the bracket, and the bracket is provided with a sliding chute which extends along the first direction;

the second connecting rod is movably embedded in the sliding groove.

5. The hinge structure of claim 4, wherein the bracket is further provided with a clamping member;

the clamping piece is provided with a clamping structure;

one end of the sliding rod is provided with a clamping part matched with the clamping structure;

the rotating shaft sequentially passes through the worm, the worm wheel, the first connecting rod and the second connecting rod to drive the sliding rod to slide along the first direction and approach the clamping piece, so that the clamping portion is clamped in the clamping structure.

6. The hinge structure according to claim 4, wherein a guide member is further provided on the bracket, the guide member extending in the first direction;

the slide bar is slidably disposed on the guide.

7. The hinge structure according to claim 4, wherein the bracket is further provided with a limiting part;

under the condition that the second connecting rod is separated from the sliding rod, the elastic piece drives the sliding rod to be far away from the second cam to abut against the limiting part.

8. The hinge structure according to claim 1, wherein a guide portion connected to the guide groove is further provided on the first cam;

under the action of elastic restoring force of the elastic piece, the protruding portion automatically slides into the guide groove or slides out of the guide groove along the guide portion.

9. The hinge structure according to claim 1, wherein a hovering portion connected to the guide groove is further provided on the first cam;

the protruding portion switches between the guide groove and the hovering portion during rotation of the first cam relative to the second cam.

10. An electronic device, characterized in that the electronic device comprises: a first device body, a second device body, and the hinge structure of any one of claims 1 to 9;

the first device body and the second device body are rotatably connected by the hinge structure to switch the electronic device between an unfolded state and a folded state.

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