Hinge Module and Smart Glasses

Abstract

The present invention discloses a hinge module and smart glasses. The hinge module includes: a base; a bracket assembly rotatably connected to the base, and the bracket assembly has a folded position, a critical position, and an open position relative to the base; a return assist mechanism and a folding assist mechanism, both of which can exert a force on the bracket assembly as the bracket assembly moves; when the bracket assembly moves between the folded position and the critical position, both the return assist mechanism and the folding assist mechanism are used to provide a folding force for the bracket assembly; when the bracket assembly moves between the critical position and the open position, the return assist mechanism is used to provide an opening force for the bracket assembly, and the folding assist mechanism is used to provide a folding force for the bracket assembly. The technical solution of the present invention enables the temple to have different sense of force in two directions of opening and folding, and can simultaneously achieve two different effects of quickly folding in place and gently opening in place, avoiding accidental injury to the user due to too fast opening speed of the temple.

Description

Technical Field

[0001] The present invention relates to the field of smart glasses, and in particular to a hinge module and smart glasses. Background Art

[0002] The temples of smart glasses (such as AR glasses) are generally connected to the frame through a hinge module, which allows the temples to have a folded state and an open state relative to the frame. In the related art, the temples of some smart glasses can realize an automatic return function, that is, when the temples change from a folded state to an open state (or vice versa), when the angle is greater than a critical angle, the temples will automatically bounce to the open state after the external force is removed, and when the angle is less than a critical angle, the temples will automatically return to the folded state after the external force is removed, and can remain stable in both the open and folded states.

[0003] However, in the related art, the hinge module usually cannot make the temples have different sense of force in the opening and folding directions, and cannot achieve the two different effects of quickly folding into place and gently opening into place at the same time. In addition, the temples open too quickly, which may easily cause accidental injury to the user and affect the user experience. Summary of the invention

[0004] The main purpose of the present invention is to propose a hinge module, which aims to make the temples have different sense of force in the opening and folding directions, and can simultaneously achieve two different effects of quickly folding into place and gently opening into place, thereby avoiding accidental injury to the user due to the temples opening too quickly.

[0005] To achieve the above object, the hinge module proposed by the present invention includes:

[0006] Pedestal;

[0007] A support assembly is rotatably connected to the base, and the support assembly has a folding position, a critical position and an open position arranged in sequence in the rotation direction relative to the base; and

[0008] The homing assist mechanism and the folding assist mechanism are both linked with the bracket assembly and can generate a force on the bracket assembly as the bracket assembly moves;

[0009] When the bracket assembly moves between the folding position and the critical position, the return assist mechanism and the folding assist mechanism are both used to provide a force for the bracket assembly to move toward the folding position; when the bracket assembly moves between the critical position and the open position, the return assist mechanism is used to provide a force for the bracket assembly to move toward the open position, and the folding assist mechanism is used to provide a force for the bracket assembly to move toward the folding position, and the force provided by the return assist mechanism is greater than the force provided by the folding assist mechanism.

[0010] In one embodiment, the homing assist mechanism includes a first cam and a follower assembly. The first cam is connected to the bracket assembly and can rotate with the bracket assembly. The axial end face of the first cam is provided with convex teeth, and the convex teeth have a first pressing inclined surface and a second pressing inclined surface with opposite inclination directions. The follower assembly is elastically telescopic and abuts against one side of the first cam where the convex teeth are provided. On the side of the follower assembly opposite to the convex teeth, there are a first guiding inclined surface and a second guiding inclined surface with opposite inclination directions. When the bracket assembly moves between the folding position and the critical position, the first pressing inclined surface slides by pressing along the first guiding inclined surface. When the bracket assembly moves between the critical position and the open position, the second pressing inclined surface slides by pressing along the second guiding inclined surface.

[0011] In one embodiment, the base is provided with a connecting shaft, the first cam is rotatably sleeved on the connecting shaft, the follower assembly includes a slider and an elastic reset member, the slider is axially slidably sleeved on the connecting shaft, the first guiding inclined surface and the second guiding inclined surface are provided on the side of the slider opposite to the first cam, and the elastic reset member is sleeved on the connecting shaft and elastically abuts against the side of the slider away from the first cam.

[0012] In one embodiment, a third guiding inclined surface is further provided on the side of the follower assembly opposite to the convex teeth. The third guiding inclined surface is located on the side of the second guiding inclined surface away from the first guiding inclined surface, and the inclination direction of the third guiding inclined surface is opposite to that of the second guiding inclined surface. A stop groove is formed between the third guiding inclined surface and the first guiding inclined surface. When the bracket assembly is in the open position, the convex teeth are engaged with the stop groove. When the bracket assembly is subjected to an outward turning force, the first pressing inclined surface slides by pressing along the third guiding inclined surface.

[0013] In one embodiment, the hinge module further includes a clamping force compensation mechanism provided between the base and the bracket assembly. When the outward turning angle of the bracket assembly is less than a preset angle, the clamping force compensation mechanism is used to provide an auxiliary clamping force for the bracket assembly to turn inward, and the auxiliary clamping force increases as the outward turning angle of the bracket assembly increases. When the outward turning angle of the bracket assembly is greater than the preset angle, the auxiliary clamping force remains constant or the auxiliary clamping force is removed.

[0014] In one embodiment, the clamping force compensation mechanism includes an assisting elastic member and a triggering member. The assisting elastic member is disposed between the base and the bracket assembly, and the triggering member is disposed on a side of the bracket assembly close to the assisting elastic member. When the outward turning angle of the bracket assembly is less than the preset angle, the triggering member is in interference contact with the assisting elastic member, and the interference amount increases as the outward turning angle of the bracket assembly increases. When the outward turning angle of the bracket assembly is greater than the preset angle, the interference amount between the triggering member and the assisting elastic member remains constant or the interference amount is zero.

[0015] In one embodiment, the base is provided with a connecting shaft. The clamping force compensation mechanism includes a second cam, a movable block, and an elastic reset member. The second cam is connected to the bracket assembly and is rotatably sleeved on the connecting shaft. A boss is provided on an axial end surface of the second cam. The boss has an adjacent first plane and a first inclined surface. The movable block is axially slidably sleeved on the connecting shaft. A convex portion is provided on a side of the movable block opposite to the second cam. The convex portion has an adjacent second plane and a second inclined surface. The elastic reset member is sleeved on the connecting shaft and elastically abuts against a side of the movable block away from the second cam. When the outward turning angle of the bracket assembly is less than the preset angle, the first inclined surface slides by squeezing along the second inclined surface. When the outward turning angle of the bracket assembly is greater than the preset angle, the first plane abuts against the second plane.

[0016] In one embodiment, the hinge module further includes a housing. The housing has a semi-enclosed structure with an opening on one side. The base is connected to the opening side of the housing, and a wire passing space is formed between the base and the housing.

[0017] In one embodiment, the bracket assembly includes a first cantilever and a second cantilever. One side of the first cantilever is rotatably connected to the base, and the second cantilever is movably connected to a side of the first cantilever away from the base. The second cantilever has an unfolded state and a folded state relative to the first cantilever. In the unfolded state, the second cantilever forms a first preset angle with the first cantilever and remains fixed. In the folded state, the second cantilever forms a second preset angle with the first cantilever and remains fixed. The first preset angle is greater than the second preset angle.

[0018] In one embodiment, the first cantilever and the second cantilever are respectively provided with shaft holes for a rotating shaft to pass through. One end of the rotating shaft extends out of the shaft hole and is axially limited by a clamping member. A convex key is provided on a circumferential surface of the rotating shaft, and first and second key grooves are provided on an inner wall surface of the shaft hole. In the unfolded state, the convex key is in clamping fit with the first key groove. In the folded state, the convex key is in clamping fit with the second key groove.

[0019] In one embodiment, the second cantilever is provided with a first protrusion and a second protrusion. In the unfolded state, the first protrusion engages with the overlapping surface of the first cantilever for force conduction. In the folded state, the second protrusion engages with the overlapping surface of the first cantilever for force conduction.

[0020] In one embodiment, two sets of the bracket assemblies are provided, and the two sets of the bracket assemblies are respectively rotatably connected to opposite sides of the base.

[0021] In one embodiment, the folding assist mechanism includes a torsion spring and two fixed shafts. Each of the bracket assemblies is respectively connected to one of the fixed shafts. One end of the torsion spring is connected to one of the fixed shafts, and the other end is connected to the other fixed shaft.

[0022] The present invention also provides an intelligent glasses, which includes temple arms, a frame and the hinge module as described above. The temple arms and the frame are connected through the hinge module.

[0023] In the hinge module of the technical solution of the present invention, the bracket assembly is rotatably connected to the base. When applied to intelligent glasses, the temple arms can be connected to the bracket assembly so that the temple arms can move between the open state and the folded state. And by providing a return assist mechanism and a folding assist mechanism, when the temple arms cross the critical state during the folding process, the bracket assembly is between the folded position and the critical position. At this time, both the return assist mechanism and the folding assist mechanism are used to provide a force for the bracket assembly to move towards the folded position. Since the folding assist mechanism plays a positive assist role during the folding process, the folding torque received by the temple arms can be increased, so that the temple arms can be quickly folded in place and quickly pressed tightly after reaching the position. When the temple arms cross the critical state during the opening process, the bracket assembly is between the critical position and the open position. At this time, the return assist mechanism is used to provide a force for the bracket assembly to move towards the open position, and the folding assist mechanism is used to provide a force for the bracket assembly to move towards the folded position, and the force provided by the return assist mechanism is greater than the force provided by the folding assist mechanism. Since the folding assist mechanism plays a reverse resistance role during the opening process, a part of the force generated by the return assist mechanism can be offset, so that the unfolding torque received by the temple arms is reduced, so that the opening speed of the temple arms can be relatively slow, achieving the effect of gently opening in place. The technical solution of the present invention can make the temple arms have different sense of force in two directions of opening and folding, and can simultaneously achieve two different effects of quickly folding in place and gently opening in place, and can avoid accidental injury to the user caused by the too fast opening speed of the temple arms, improving the overall texture of the intelligent glasses, and further effectively improving the user experience. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0025] Figure 1 Structural schematic diagram of an embodiment of the hinge module of the present invention;

[0026] Figure 2 For Figure 1 Exploded schematic diagram of one of the bracket components of the hinge module in

[0027] Figure 3 For Figure 2 Partial enlarged view of part A in

[0028] Figure 4 For Figure 1 Exploded schematic diagram of the hinge module in

[0029] Figure 5 For Figure 1 Schematic diagram of the position change of the bracket component of the hinge module from folding to turning outwards in

[0030] Figure 6 For Figure 1 Structural schematic diagram of another perspective of the hinge module in

[0031] Figure 7 For Figure 6 Partial enlarged view of part B in

[0032] Figure 8 For Figure 1 Schematic diagram of the cooperation between the bracket component of the hinge module and the clamping force compensation mechanism in

[0033] Figure 9 Structural schematic diagram of another embodiment of the hinge module of the present invention;

[0034] Figure 10 For Figure 9 Schematic diagram of the cooperation between the bracket component of the hinge module and the clamping force compensation mechanism in

[0035] Figure 11 For Figure 10 Principle schematic diagram of the clamping force compensation mechanism in

[0036] Figure 12 Schematic diagram of the wire passing structure of the hinge module;

[0037] Figure 13 Structural schematic diagram of the first assembly state of the hinge module;

[0038] Figure 14 is Figure 13 Schematic diagram of the connection structure of the middle hinge module with the temple and the frame;

[0039] Figure 15 Schematic diagram of the structure of the second assembly state of the hinge module;

[0040] Figure 16 is Figure 15 Schematic diagram of the connection structure of the middle hinge module with the temple and the frame;

[0041] Figure 17 Schematic diagram of the structure of an embodiment of the intelligent glasses of the present invention;

[0042] Figure 18 is Figure 17 Schematic diagram of the state change of the temple of the intelligent glasses from folding to opening;

[0043] Figure 19 is Figure 17 Schematic diagram of the state change of the temple of the intelligent glasses from opening to eversion;

[0044] Figure 20 is Figure 17 Schematic diagram of the cross-sectional structure of the intelligent glasses.

[0045] Explanation of the reference numerals in the drawings:

[0046]

[0047]

[0048] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0050] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0051] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0052] The present invention provides a hinge module 100 .

[0053] Please refer to Figure 1 and Figure 5 In one embodiment of the present invention, the hinge module 100 includes a base 10, a support assembly 20, a homing assist mechanism 30 and a folding assist mechanism 40. The support assembly 20 is rotatably connected to the base 10, and the support assembly 20 has a folding position, a critical position and an open position arranged in sequence in the rotation direction relative to the base 10; the homing assist mechanism 30 and the folding assist mechanism 40 are both linked with the support assembly 20, and can generate a force on the support assembly 20 as the support assembly 20 moves; when the support assembly 20 moves between the folding position and the critical position, the homing assist mechanism 30 and the folding assist mechanism 40 are both used to provide a force to move the support assembly 20 toward the folding position; when the support assembly 20 moves between the critical position and the open position, the homing assist mechanism 30 is used to provide a force to move the support assembly 20 toward the open position, and the folding assist mechanism 40 is used to provide a force to move the support assembly 20 toward the folding position, and the force provided by the homing assist mechanism 30 is greater than the force provided by the folding assist mechanism 40.

[0054] Specifically, Figure 17 and Figure 18As shown, the hinge module 100 can be used for the smart glasses 1000. The smart glasses 1000 include a frame 300 and temple arms 200. Among them, the temple arms 200 can be connected to the bracket assembly 20, and the frame 300 is connected to the base 10. In this way, when the bracket assembly 20 rotates relative to the base 10, the temple arms 200 can rotate relative to the frame 300, thereby realizing the folding and opening functions of the temple arms 200. Alternatively, two sets of bracket assemblies 20 can be provided. The two sets of bracket assemblies 20 are respectively rotatably connected to the base 10. One set of bracket assemblies 20 is used to connect to the temple arms 200, and the other set of bracket assemblies 20 is used to connect to the frame 300. In this way, when the bracket assembly 20 connected to the temple arms 200 rotates relative to the base 10, the folding and opening functions of the temple arms 200 can also be realized. As Figure 1 shown, in this embodiment, two sets of bracket assemblies 20 are provided, namely a first bracket assembly 20a for connecting to the temple arms 200 and a second bracket assembly 20b for connecting to the frame 300. The structures of the first bracket assembly 20a and the second bracket assembly 20b are similar. For the convenience of description, the following mainly takes the first bracket assembly 20a (hereinafter simply referred to as the bracket assembly 20) for connecting to the temple arms 200 as an example for illustration.

[0055] Please refer to Figure 5 and Figure 18 , in this embodiment, the bracket assembly 20 is rotatably connected to the base 10, so that the bracket assembly 20 has a folded position, a critical position, and an open position relative to the base 10. When the hinge module 100 is applied to the smart glasses 1000, the bracket assembly 20 can be connected to the temple arms 200. In this way, when the bracket assembly 20 is in the folded position, the temple arms 200 are in the folded state. When the bracket assembly 20 is in the critical position, the temple arms 200 are in the critical state. When the bracket assembly 20 is in the open position, the temple arms 200 are in the open state. The hinge module 100 further includes a return assist mechanism 30 and a folding assist mechanism 40 that cooperate with the bracket assembly 20 in a linkage manner. When the bracket assembly 20 moves between the folded position and the open position, the return assist mechanism 30 can change the direction of the force acting on the bracket assembly 20 after the bracket assembly 20 crosses the critical position, while the direction of the force of the folding assist mechanism 40 acting on the bracket assembly 20 remains unchanged.

[0056] As Figure 5 and Figure 18As shown, taking the movement process of the temple 200 from the folded state to the opened state as an example, the reverse folding process is similar. When an external force is applied to the temple 200 to make the temple 200 move from the folded state towards the opened state, if the temple 200 has not reached the critical state (for example, the flipping angle of the temple 200 is less than the critical angle of 45°), correspondingly, the bracket assembly 20 is between the folded position and the critical position. At this time, the return assist mechanism 30 provides a force F1 for the bracket assembly 20 to move towards the folded position, and the folding assist mechanism 40 provides a force F2 for the bracket assembly 20 to move towards the folded position. Since the directions of F1 and F2 are the same, when the external force is removed during the movement, the bracket assembly 20 can automatically return to the folded position under the combined action of the resultant force (F1 + F2), thereby driving the temple 200 to automatically return to the folded state. When the temple 200 moves to the critical state (for example, the flipping angle of the temple 200 reaches the critical angle of 45°), correspondingly, the bracket assembly 20 is at the critical position, which is an instantaneous steady-state position. When an external force is continuously applied to the temple 200 to make the temple 200 cross the critical state (for example, the flipping angle of the temple 200 is greater than the critical angle of 45°), correspondingly, the bracket assembly 20 is between the critical position and the opened position. At this time, the return assist mechanism 30 provides a force F3 for the bracket assembly 20 to move towards the opened position, and the folding assist mechanism 40 provides a force F4 for the bracket assembly 20 to move towards the folded position. At this time, the directions of F3 and F4 are opposite, and F3 is much greater than F4. When the external force is removed during the movement, the bracket assembly 20 can automatically move to the opened position under the combined action of the resultant force (F3 - F4), thereby driving the temple 200 to automatically move to the opened state.

[0057] In the hinge module 100 of the technical solution of the present invention, by rotatably connecting the bracket assembly 20 to the base 10, when applied to the smart glasses 1000, the temple 200 can be connected to the bracket assembly 20 so that the temple 200 can move between an open state and a folded state; and by providing a home position assisting mechanism 30 and a folding assisting mechanism 40, when the temple 200 crosses the critical state during the folding process, the bracket assembly 20 is between the folded position and the critical position. At this time, both the home position assisting mechanism 30 and the folding assisting mechanism 40 are used to provide a force for the bracket assembly 20 to move towards the folded position. Since the folding assisting mechanism 40 plays a positive assisting role during the folding process, it can increase the folding torque received by the temple 200, so that the temple 200 can be quickly folded in place and quickly pressed tightly after reaching the position. When the temple 200 crosses the critical state during the opening process, the bracket assembly 20 is between the critical position and the open position. At this time, the home position assisting mechanism 30 is used to provide a force for the bracket assembly 20 to move towards the open position, and the folding assisting mechanism 40 is used to provide a force for the bracket assembly 20 to move towards the folded position, and the force provided by the home position assisting mechanism 30 is greater than the force provided by the folding assisting mechanism 40. Since the folding assisting mechanism 40 plays a reverse resistance role during the opening process, it can offset a part of the force generated by the home position assisting mechanism 30, so that the unfolding torque received by the temple 200 is reduced, and the opening speed of the temple 200 can be relatively slow, achieving the effect of gently opening in place. The technical solution of the present invention can make the temple 200 have different sense of force in two directions of opening and folding, and can simultaneously achieve two different effects of quickly folding in place and gently opening in place, and can avoid accidental injury to the user due to the too fast opening speed of the temple 200, improving the overall texture of the smart glasses 1000, and further effectively improving the user experience.

[0058] Please refer to Figure 6 and Figure 7 , in one of the embodiments, the home position assisting mechanism 30 includes a first cam 31 and a follower assembly 32. The first cam 31 is connected to the bracket assembly 20 and can rotate with the bracket assembly 20. The axial end face of the first cam 31 is provided with convex teeth 311. The convex teeth 311 have a first pressing inclined surface 3111 and a second pressing inclined surface 3112 with opposite inclined directions. The follower assembly 32 is elastically telescopic and abuts against one side of the first cam 31 provided with the convex teeth 311. The side of the follower assembly 32 opposite to the convex teeth 311 is provided with a first guiding inclined surface 3211 and a second guiding inclined surface 3212 with opposite inclined directions; when the bracket assembly 20 moves between the folded position and the critical position, the first pressing inclined surface 3111 slides along the first guiding inclined surface 3211; when the bracket assembly 20 moves between the critical position and the open position, the second pressing inclined surface 3112 slides along the second guiding inclined surface 3212.

[0059] In this embodiment, when the temple 200 rotates from the folded state to the critical state, the first cam 31 is driven to rotate by the bracket assembly 20. Further, the first pressing inclined surface 3111 of the first cam 31 can slide along the first guiding inclined surface 3211 and generate a pressing force on the first guiding inclined surface 3211, so that the follower assembly 32 is compressed and deformed. The follower assembly 32 can generate a reaction force on the bracket assembly 20 under the action of the resilience force, so that the temple 200 has a tendency to move towards the folded state. When the temple 200 moves from the critical state to the open state, the first cam 31 is driven to rotate by the bracket assembly 20. Further, the second pressing inclined surface 3112 of the first cam 31 can slide along the second guiding inclined surface 3212 and generate a pressing force on the second guiding inclined surface 3212, so that the follower assembly 32 is compressed and deformed. The follower assembly 32 can generate a reaction force on the bracket assembly 20 under the action of the resilience force, so that the temple 200 has a tendency to move towards the open state. Through the cooperation of the first cam 31 and the follower assembly 32, the acting force direction of the return assist mechanism 30 can be changed during the rotation of the temple 200, and then the functions of automatic folding and returning and automatic opening and returning can be realized.

[0060] It should be noted that the first cam 31 and the bracket assembly 20 can be connected as a whole by welding or fasteners, or the first cam 31 can be integrally formed with the bracket assembly 20, that is, the first cam 31 is a part of the bracket assembly 20. For example, as Figure 4 shown, in this embodiment, the first cam 31 and the bracket assembly 20 are integrally formed. The axial end surface of the first cam 31 is provided with convex teeth 311. The convex teeth 311 have a first pressing inclined surface 3111 and a second pressing inclined surface 3112 with opposite inclination directions, so that the convex teeth 311 are generally triangular or trapezoidal in structure. The follower assembly 32 is arranged on one side of the first cam 31 in the axial direction. The follower assembly 32 can elastically expand and contract along the axial direction of the first cam 31, that is, the follower assembly 32 has a certain elasticity. When the first cam 31 applies an axial force to the follower assembly 32, the follower assembly 32 can be compressed and deformed. At the same time, the follower assembly 32 can have a tendency to extend and reset towards the first cam 31 under the action of resilience, so that the follower assembly 32 and the first cam 31 always remain in contact. Among them, there are various ways for the follower assembly 32 to realize elastic expansion and contraction. For example, in this embodiment, the follower assembly 32 includes a slider 321 and an elastic reset member 322. The slider 321 is arranged opposite to the first cam 31. The elastic reset member 322 elastically abuts against the side of the slider 321 away from the first cam 31. The elastic expansion and contraction of the elastic reset member 322 is used to realize the axial expansion and contraction movement of the slider 321 relative to the first cam 31. Of course, in other embodiments, the follower assembly 32 can also realize elastic expansion and contraction through some mechanical linkage structures or transmission structures, which are not specifically limited here.

[0061] Please refer toFigure 4 and Figure 6 Furthermore, the base 10 is provided with a connecting shaft 50, the first cam 31 is rotatably sleeved on the connecting shaft 50, the follower assembly 32 includes a slider 321 and an elastic reset member 322, the slider 321 is axially slidably sleeved on the connecting shaft 50, the slider 321 is provided with a first guide inclined surface 3211 and a second guide inclined surface 3212 on the side opposite to the first cam 31, the elastic reset member 322 is sleeved on the connecting shaft 50 and elastically abuts against the side of the slider 321 away from the first cam 31.

[0062] In this embodiment, the bracket assembly 20 is rotatably mounted on the connecting shaft 50 through the first cam 31, so as to realize the rotatable connection between the bracket assembly 20 and the base 10. The sliding of the slider 321 and the elastic telescopic movement of the elastic reset member 322 can also be guided by the connecting shaft 50, so that the entire homing compensation mechanism has higher motion accuracy. Among them, the elastic reset member 322 includes but is not limited to a compression spring, a rectangular spring, a wave spring, a disc spring or other forms of elastic members.

[0063] Please combine Figures 5 to 7, taking the movement process of the temple 200 from the folded state to the open state as an example, the reverse folding process is similar. When an external force is applied to the temple 200 to make the temple 200 move from the folded state towards the critical state, the folding assist mechanism 40 applies a folding torque F2 to the bracket assembly 20 towards the folding position. The external force overcomes the folding torque and makes the bracket assembly 20 rotate relative to the base 10 towards the critical position. At this time, the first cam 31 on the bracket assembly 20 moves along the first guiding slope 3211 of the slider 321 through the first pressing slope 3111 and generates a pressing force on the slider 321, causing the slider 321 to move axially and compressing and deforming the elastic restoring member 322, thereby realizing the reaction force F1. If the external force is withdrawn during the movement process, the bracket assembly 20 automatically returns to the folding position under the combined action of the acting force F1 formed by the return assist mechanism 30 (i.e., the cooperation structure of the first cam 31, the slider 321, and the elastic restoring member 322) and the acting force F2 generated by the folding assist mechanism 40, and then the temple 200 quickly and automatically returns to the folded state. When the external force is continuously applied to make the temple 200 move beyond the critical state towards the open state, the first cam 31 moves along the second guiding slope 3212 of the slider 321 through the second pressing slope 3112 and generates a pressing force on the slider 321, causing the slider 321 to move axially and compressing and deforming the elastic restoring member 322, thereby realizing the reaction force F3. Since the inclination direction of the second guiding slope 3212 is changed relative to the first guiding slope 3211, the direction of the generated reaction force F3 is also changed compared to F1, and F3 is much greater than the folding torque F4 generated by the folding assist mechanism 40. If the external force is withdrawn during the movement process, the bracket assembly 20 moves towards the open position under the action of the acting force F3 formed by the return assist mechanism 30 (i.e., the cooperation structure of the first cam 31, the slider 321, and the elastic restoring member 322). And because the folding torque F4 generated by the folding assist mechanism 40 is in the opposite direction to F3, it can offset a part of the acting force generated by the return assist mechanism 30, thereby reducing the unfolding torque received by the temple 200, so that the opening speed of the temple 200 can be relatively slow, achieving the effect of gently opening in place.

[0064] As Figure 7 shown, in one embodiment, a third guiding slope 3213 is further provided on the side of the follower assembly 32 opposite to the convex teeth 311. The third guiding slope 3213 is located on the side of the second guiding slope 3212 away from the first guiding slope 3211. The inclination direction of the third guiding slope 3213 is opposite to that of the second guiding slope 3212. A stop groove 3214 is formed between the third guiding slope 3213 and the first guiding slope 3211. When the bracket assembly 20 is in the open position, the convex teeth 311 are engaged with the stop groove 3214. When the bracket assembly 20 is subjected to an outward turning force, the first pressing slope 3111 slides along the third guiding slope 3213 by extrusion.

[0065] In this embodiment, when the bracket assembly 20 is in the open position, the convex teeth 311 of the first cam 31 engage with the stop groove 3214 of the slider 321, enabling the bracket assembly 20 to be stably held in the open position. As a result, the temple 200 can be stably held in the open state without wobbling left and right, effectively enhancing the overall texture of the product. When the user wears the glasses, an outward turning torque is applied to the temple 200. The temple 200 will expand outward and drive the bracket assembly 20 to rotate. The first cam 31 rotates accordingly. By sliding the first pressing inclined surface 3111 of the first cam 31 along the third guiding inclined surface 3213, the temple 200 has a certain outward turning adjustment space to accommodate users with different head widths. Moreover, the first pressing inclined surface 3111 presses the third guiding inclined surface 3213, causing the follower assembly 32 to be compressed and deformed. The follower assembly 32 can generate a reaction force on the bracket assembly 20 under the action of the resilience, thereby generating a clamping force on the user's head by the temple 200, so that the wearing is neither too loose nor too tight, making the user more comfortable to wear. When the glasses are taken off, the temple 200 can automatically return and remain in the open state without wobbling left and right, giving the user a sense of high quality and enhancing the user experience.

[0066] In the above embodiment, when a user with a larger head width wears the glasses, the temple 200 expands outward, driving the bracket assembly 20 to turn outward. The bracket assembly 20 drives the first cam 31 to rotate. The first pressing inclined surface 3111 contacts the third guiding inclined surface 3213, driving the slider 321 to move downward and compressing the elastic reset member 322 to provide a resistance torque, thereby applying a clamping force to the user's head. This clamping force increases as the outward turning angle of the temple 200 increases. When a user with a smaller head width wears the glasses, since the outward turning angle of the temple 200 is smaller, the clamping force generated by the outward turning is relatively small. Thus, there is a significant difference in the clamping force felt by users with smaller and larger head width values when wearing the same pair of smart glasses 1000, resulting in poor adaptability of the smart glasses 1000 and affecting the user's wearing experience.

[0067] To solve the above problems, as Figure 8 and Figure 10 shown, further, the hinge module 100 further includes a clamping force compensation mechanism 60 disposed between the base 10 and the bracket assembly 20. When the outward turning angle of the bracket assembly 20 is less than the preset angle, the clamping force compensation mechanism 60 is used to provide an auxiliary clamping force for the bracket assembly 20 to turn inward, and the auxiliary clamping force increases as the outward turning angle of the bracket assembly 20 increases. When the outward turning angle of the bracket assembly 20 is greater than the preset angle, the auxiliary clamping force remains constant or the auxiliary clamping force is removed.

[0068] In this embodiment, by providing a clamping force compensation mechanism 60 between the base 10 and the bracket assembly 20, it is possible to achieve that the clamping force values are not very different and relatively balanced in the cases of small-angle and large-angle outward turning of the temple 200. Specifically, when a user with a smaller head width wears the glasses, the outward turning angles of the temple 200 and the bracket assembly 20 are both small, so that the compression deformation amount of the elastic reset member 322 of the follower assembly 32 is also small. As a result, the clamping force generated by the return assist mechanism 30 to turn the bracket assembly 20 inward is also small. When the outward turning angle of the bracket assembly 20 is less than a preset angle (this preset angle can be set according to actual needs), the clamping force compensation mechanism 60 can provide an auxiliary clamping force for the bracket assembly 20 to turn inward, and within the range where the outward turning angle is less than the preset angle, this auxiliary clamping force will increase as the outward turning angle increases. At this time, the clamping force felt by the user during wearing is provided by both the return assist mechanism 30 and the clamping force compensation mechanism 60. When a user with a larger head width wears the glasses, the outward turning angles of the temple 200 and the bracket assembly 20 are both large, so that the compression deformation amount of the elastic reset member 322 of the follower assembly 32 is also large. As a result, the clamping force generated by the return assist mechanism 30 to turn the bracket assembly 20 inward is also large. When the outward turning angle of the bracket assembly 20 is greater than the preset angle, the clamping force compensation mechanism 60 provides an auxiliary clamping force for the bracket assembly 20 to turn inward and remains constant or is removed. At this time, the clamping force felt by the user during wearing is mainly provided by the return assist mechanism 30. In this way, the difference in the clamping force felt by users with smaller and larger head width values when wearing the same pair of smart glasses 1000 can be made smaller, so that the adaptability of the smart glasses 1000 is better, and the user's wearing experience can be effectively improved.

[0069] There are various specific implementation methods for the clamping force compensation mechanism 60. The following gives examples of two embodiments of the clamping force compensation mechanism 60.

[0070] As Figure 4 and Figure 8 shown, in one embodiment, the clamping force compensation mechanism 60 includes an assisting elastic member 61 and a triggering member 62. The assisting elastic member 61 is disposed between the base 10 and the bracket assembly 20, and the triggering member 62 is disposed on the side of the bracket assembly 20 close to the assisting elastic member 61. When the outward turning angle of the bracket assembly 20 is less than the preset angle, the triggering member 62 interferes with and contacts the assisting elastic member 61, and the interference amount increases as the outward turning angle of the bracket assembly 20 increases. When the outward turning angle of the bracket assembly 20 is greater than the preset angle, the interference amount between the triggering member 62 and the assisting elastic member 61 remains constant or the interference amount is zero.

[0071] In this embodiment, the assisting elastic member 61 includes, but is not limited to, a spring, a shrapnel, or other elastic structures. Taking the shrapnel as an example for the assisting elastic member 61, the assisting elastic member 61 includes a shrapnel body and a hem on the side of the shrapnel body, and the hem is inclined and bent toward the side close to the bracket assembly 20 relative to the shrapnel body. The bracket assembly 20 is provided with a trigger member 62 protruding toward the assisting elastic member 61, and the trigger member 62 can be in interference fit with the hem of the assisting elastic member 61. For example, when the bracket assembly 20 is flipped outward by a first angle and the first angle is less than a preset angle, the trigger member 62 is in interference contact with the assisting elastic member 61 at a first position, and the trigger member 62 squeezes the assisting elastic member 61, thereby causing the assisting elastic member 61 to generate a reverse acting force, and this reverse acting force can provide an auxiliary clamping force for the bracket assembly 20, so as to increase the overall clamping force; when the bracket assembly 20 is flipped outward by a second angle, the second angle is greater than the first angle and the second angle is less than the preset angle, the trigger member 62 is in interference contact with the assisting elastic member 61 at a second position, and at this time, the interference amount at the second position is greater than the interference amount at the first position, so that the assisting elastic member 61 can generate a greater reverse acting force to further increase the auxiliary clamping force; when the bracket assembly 20 is further flipped outward so that the outward flip angle of the bracket assembly 20 is greater than the preset angle, the trigger member 62 passes over the second position, and at this time, the interference amount between the trigger member 62 and the assisting elastic member 61 no longer changes, and the reverse acting force provided by the assisting elastic member 61 is constant, so that the auxiliary clamping force remains constant. At this time, the large-angle clamping force is mainly provided by the return assisting mechanism 30. In this embodiment, the clamping force compensation mechanism 60 can achieve the effect of balanced clamping force through the cooperation of the assisting elastic member 61 and the trigger member 62, with a simple structure and small occupied space.

[0072] Please refer to Figures 9 to 11 , in another embodiment, the base 10 is provided with a connecting shaft 50, and the clamping force compensation mechanism 60 includes a second cam 63, a movable block 64, and an elastic reset member 322. The second cam 63 is connected to the bracket assembly 20, the second cam 63 is rotatably sleeved on the connecting shaft 50, the axial end surface of the second cam 63 is provided with a boss 631, the boss 631 has an adjacent first plane 6311 and a first inclined surface 6312, the movable block 64 is axially slidably sleeved on the connecting shaft 50, a convex portion 641 is provided on the side of the movable block 64 opposite to the second cam 63, the convex portion 641 has an adjacent second plane 6411 and a second inclined surface 6412, and the elastic reset member 322 is sleeved on the connecting shaft 50 and elastically abuts against the side of the movable block 64 away from the second cam 63; when the outward flip angle of the bracket assembly 20 is less than the preset angle, the first inclined surface 6312 slides by squeezing along the second inclined surface 6412; when the outward flip angle of the bracket assembly 20 is greater than the preset angle, the first plane 6311 abuts against the second plane 6411.

[0073] In this embodiment, when the eversion angle of the temple 200 is small, the eversion angle of the bracket assembly 20 is less than the preset angle. At this time, the bracket assembly 20 is in extrusion fit with the second inclined surface 6412 of the movable block 64 through the first inclined surface 6312 of the second cam 63, so that the elastic reset member 322 is compressed and deformed. The elastic reset member 322 acts on the movable block 64 in the reverse direction to provide torque output to the bracket assembly 20, thereby generating an auxiliary clamping force, and this auxiliary clamping force increases with the increase of the compression deformation amount generated by the elastic reset member 322. When the eversion angle of the temple 200 is large, the eversion angle of the bracket assembly 20 is greater than the preset angle. At this time, the bracket assembly 20 contacts the second flat surface 6411 of the movable block 64 through the first flat surface 6311 of the second cam 63, and no longer provides torque, so that the auxiliary clamping force is removed. In this way, the force value balance at different eversion angles can be achieved. It should be noted that the second cam 63 and the bracket assembly 20 can be connected into one body by welding or fasteners, or the second cam 63 can be integrally formed with the bracket assembly 20, that is, the second cam 63 is used as a part of the bracket assembly 20. For example, as Figure 10 shown, in this embodiment, the second cam 63 and the bracket assembly 20 are integrally formed.

[0074] Optionally, as Figure 9 shown, in an embodiment, the base 10 is provided with a connecting shaft 50. The return assist mechanism 30 includes a first cam 31, a slider 321 and an elastic reset member 322. The clamping force compensation mechanism 60 includes a second cam 63, a movable block 64 and an elastic reset member 322. At this time, the return assist mechanism 30 and the clamping force compensation mechanism 60 can share a connecting shaft 50 and an elastic reset member 322 to reduce the number of components and simplify the assembly process. For example, the first cam 31 and the second cam 63 are respectively arranged on the upper and lower sides of the bracket assembly 20. The first cam 31 is rotatably sleeved on the upper end of the connecting shaft 50, and the second cam 63 is rotatably sleeved on the lower end of the connecting shaft 50, so as to realize a reliable rotational connection between the bracket assembly 20 and the connecting shaft 50. The slider 321 and the movable block 64 are respectively slidably sleeved on the connecting shaft 50. The slider 321 is arranged close to the first cam 31, and the movable block 64 is arranged close to the second cam 63. The elastic reset member 322 is sleeved on the connecting shaft 50. One end of the elastic reset member 322 is elastically abutted against the slider 321, and the other end is elastically abutted against the movable block 64, and the overall structure is compact.

[0075] Please refer to Figure 4 and Figure 12 , in one of the embodiments, the hinge module 100 further includes a housing 70. The housing 70 has a semi-enclosed structure with one side open. The base 10 is connected to the open side of the housing 70, and a wire passing space 701 is formed between the base 10 and the housing 70.

[0076] In this embodiment, the connection and fixation between the base 10 and the housing 70 include, but are not limited to, snap - fit, screw connection, etc. The main structures of the hinge module 100 (such as the base 10 and the bracket assembly 20) are all arranged on the same side of the hinge module 100, so that a relatively large wire - passing space 701 can be formed inside the housing 70 on the other side of the hinge module 100, which is beneficial to the passing through and heat dissipation of the signal line 400 of the smart glasses 1000. Moreover, on the one hand, the base 10 can serve as the main support structure to realize the support function for the bracket assembly 20. On the other hand, the side of the base 10 facing away from the housing 70 can also serve as the appearance surface of the hinge module 100, and the overall appearance effect can be improved through the physical vapor deposition (PVD) process on the surface.

[0077] Generally, as Figure 20 shown, the frame 300 of the smart glasses 1000 (such as AR glasses) includes an inner frame shell 310 and an outer frame shell 320 that are spliced with each other, and the temple 200 includes an inner temple shell 210 and an outer temple shell 220 that are spliced with each other. Taking the temple 200 as an example, when fixing the temple 200 to the bracket assembly 20, it is only necessary to fix the inner side surface of the inner temple shell 210 to one side of the bracket assembly 20. However, with the increasing requirements for the miniaturization, light weight, and appearance of AR products, the internal space of many products is insufficient or there are no splicing gaps between the inner and outer shells, which has thus given rise to the integrally formed frame 300 and temple 200. For the space - limited or integrally formed frame 300 and temple 200, when fixing them to the bracket assembly 20, it is necessary to fix the end faces of the temple 200 and the frame 300 to the bracket assembly 20. At this time, it is necessary to make the bracket assembly 20 able to fold at a certain angle (such as 90°) to meet the installation requirements.

[0078] To improve the versatility of the hinge module 100, as Figures 13 to 16 shown, in one embodiment, the bracket assembly 20 includes a first cantilever 21 and a second cantilever 22. One side of the first cantilever 21 is rotatably connected to the base 10, and the second cantilever 22 is movably connected to the side of the first cantilever 21 away from the base 10. The second cantilever 22 has an unfolded state (as Figure 13 shown) and a folded state (as Figure 15 shown) relative to the first cantilever 21. In the unfolded state, the second cantilever 22 forms a first preset angle with the first cantilever 21 and remains fixed. In the folded state, the second cantilever 22 forms a second preset angle with the first cantilever 21 and remains fixed, and the first preset angle is greater than the second preset angle.

[0079] In this embodiment, by dividing the bracket assembly 20 into two components, namely the first cantilever 21 and the second cantilever 22, the angle between the first cantilever 21 and the second cantilever 22 can be adjusted, so that the bracket assembly 20 can be fixed to the temple 200 or the spectacle frame 300 in two different fixed postures to meet different application scenarios, thereby improving versatility. The first preset angle and the second preset angle can be set according to actual needs. Hereinafter, the first preset angle is mainly 180° and the second preset angle is 90° as an example. Taking the installation of the temple 200 as an example, as Figure 13 and Figure 14 shown, when the first cantilever 21 is at the first preset angle relative to the second cantilever 22, the angle between the first cantilever 21 and the second cantilever 22 is 180° and remains fixed. At this time, the first cantilever 21 and the second cantilever 22 are flattened and fixed to each other. This situation can be well applied to the scenario where the inner shell 210 of the temple and the outer shell 220 of the temple are spliced together. Only one side of the second cantilever 22 needs to be fixed to the inner side surface of the inner shell 210 of the temple. As Figure 15 and Figure 16 shown, when it is necessary to be applied to the integrally formed temple 200 (without the splicing seam between the inner and outer shells of the temple 200) or the scenario where the internal space of the temple 200 is insufficient, only the second cantilever 22 needs to be adjusted relative to the first cantilever 21 so that the angle between the second cantilever 22 and the first cantilever 21 is 90° and remains fixed. At this time, the second cantilever 22 is in an upright folded state relative to the first cantilever 21 and remains fixed. Then, the end face of the temple 200 can be directly fixed to the side surface of the second cantilever 22. The installation form of the spectacle frame 300 and the bracket assembly 20 is similar to that of the temple 200 and will not be elaborated here. In addition, the fixing methods between the temple 200 and the spectacle frame 300 and the bracket assembly 20 include but are not limited to screw connection, riveting, welding, clamping, etc.

[0080] In order to facilitate the angle adjustment of the second cantilever 22 relative to the first cantilever 21 and also facilitate the limit of the second cantilever 22 and the first cantilever 21 in the rotation direction, please refer to Figure 2 and Figure 3 , in one embodiment, the first cantilever 21 and the second cantilever 22 are respectively provided with shaft holes 201 for the rotation shaft 23 to pass through. One end of the rotation shaft 23 passes out of the shaft hole 201 and is axially limited by a clamping member 24. A convex key is provided on the peripheral surface of the rotation shaft 23, and a first key groove 202 and a second key groove 203 are provided on the inner wall surface of the shaft hole 201. In the unfolded state, the convex key is engaged with the first key groove 202, and in the folded state, the convex key is engaged with the second key groove 203.

[0081] In this embodiment, a convex key is provided on the circumferential surface of the rotating shaft 23, and first key grooves 202 and second key grooves 203 with different directions are provided on the inner wall surface of the shaft hole 201. When it is necessary to adjust to the unfolded state, only need to insert the rotating shaft 23 into the shaft holes 201 of the first cantilever 21 and the second cantilever 22, and make the convex key engage with the first key groove 202 to limit the relative rotation between the first cantilever 21 and the second cantilever 22, and then use a clamping member 24 (such as a circlip) to limit the axial end of the rotating shaft 23 to prevent it from moving up and down. When it is necessary to adjust to the folded state, only need to remove the clamping member 24 first, pull out the rotating shaft 23, readjust the position and insert it into the shaft hole 201 again, so that the convex key engages with the second key groove 203, and then assemble the clamping member 24. The above structure is used to realize the angle adjustment between the second cantilever 22 and the first cantilever 21, with a simple structure and convenient operation.

[0082] In order to enable more reliable force conduction between the second cantilever 22 and the first cantilever 21, ensure the motion synchronization of the first cantilever 21 and the second cantilever 22, and at the same time improve the overall structural strength of the bracket assembly 20. As Figure 1 shown, in one embodiment, the second cantilever 22 is provided with a first protrusion 221 and a second protrusion 222. In the unfolded state, the first protrusion 221 engages with the overlapping surface of the first cantilever 21 for force conduction. In the folded state, the second protrusion 222 engages with the overlapping surface of the first cantilever 21 for force conduction.

[0083] In this embodiment, the second cantilever 22 is provided with a first protrusion 221 and a second protrusion 222 with different directions. In the unfolded state, the first protrusion 221 engages with the overlapping surface of the first cantilever 21, that is, the first protrusion 221 and the first cantilever 21 are in plane contact and are limited. In this way, when the second cantilever 22 applies a force, the torque can be transmitted to the first cantilever 21 through the first protrusion 221 to ensure that the first cantilever 21 and the second cantilever 22 can move synchronously. In the folded state, the second protrusion 222 engages with the overlapping surface of the first cantilever 21, that is, the second protrusion 222 and the first cantilever 21 are in plane contact and are limited. In this way, when the second cantilever 22 applies a force, the torque can be transmitted to the first cantilever 21 through the second protrusion 222 to ensure that the first cantilever 21 and the second cantilever 22 can move synchronously.

[0084] On the basis of the above embodiments, as Figure 1 and Figure 4As shown, in one embodiment, two sets of bracket assemblies 20 are provided. The two sets of bracket assemblies 20 are respectively rotatably connected to opposite sides of the base 10. In this embodiment, two sets of bracket assemblies 20 are provided. The two sets of bracket assemblies 20 can be respectively rotatably connected to the base 10 through a connecting shaft 50. One set of bracket assemblies 20 is the first bracket assembly 20a for connecting the temple 200, and the other set of bracket assemblies 20 is the second bracket assembly 20b for connecting the frame 300, so that both the temple 200 and the frame 300 can rotate relative to the base 10. In this way, the hinge module 100 as a whole presents a double-axis layout, which can increase the bending radius and avoid damage to the signal line 400 and the heat dissipation device due to too small bending radius, and can further improve the service life of the signal line 400 and the heat dissipation device of the smart glasses 1000.

[0085] As Figure 4 and Figure 5 As shown, in one embodiment, the folding assist mechanism 40 includes a torsion spring 41 and two fixed shafts 42. Each bracket assembly 20 is respectively connected to a fixed shaft 42. One end of the torsion spring 41 is connected to one of the fixed shafts 42, and the other end is connected to the other fixed shaft 42.

[0086] In this embodiment, the fixed shaft 42 can be specifically fixed to the bracket assembly 20 by welding, screw connection or other means. The torsion spring 41 is generally in a "V" shape. Two hook-shaped bodies are respectively formed at both ends of the torsion spring 41. One end of the torsion spring 41 is hooked on the fixed shaft 42 of one of the bracket assemblies 20, and the other end of the torsion spring 41 is hooked on the fixed shaft 42 of the other bracket assembly 20. The structure is simple and convenient for assembly. When the bracket assembly 20 rotates, it drives the torsion spring 41 to deform, so as to provide a force for the bracket assembly 20 to move towards the folding position.

[0087] As Figures 17 to 20 As shown, the present invention also provides a pair of smart glasses 1000. The smart glasses 1000 include temples 200, a frame 300 and a hinge module 100. The temples 200 and the frame 300 are connected by the hinge module 100. The specific structure of the hinge module 100 refers to the above embodiment. Since the smart glasses 1000 adopt all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one. Among them, the bracket assembly 20 of the hinge module 100 can be set to one group or two groups. For example, when the bracket assembly 20 is set to one group, the bracket assembly 20 can be connected to the temple 200, and the base 10 is connected to the frame 300; and for another example, when the bracket assembly 20 is set to two groups, one group of bracket assemblies 20 (such as the first bracket assembly 20a) can be connected to the temple 200, and the other group of bracket assemblies 20 (such as the second bracket assembly 20b) is connected to the frame 300 to increase the bending radius.

[0088] The above are only the preferred embodiments of the present invention, and do not thus limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present invention.

Claims

1. A hinge module, characterized in that, include: Pedestal; A support assembly is rotatably connected to the base, and the support assembly has a folding position, a critical position and an open position arranged in sequence in the rotation direction relative to the base; as well as The homing assist mechanism and the folding assist mechanism are both linked with the bracket assembly and can generate a force on the bracket assembly as the bracket assembly moves; When the bracket assembly moves between the folding position and the critical position, the return assist mechanism and the folding assist mechanism are both used to provide a force for the bracket assembly to move toward the folding position; when the bracket assembly moves between the critical position and the open position, the return assist mechanism is used to provide a force for the bracket assembly to move toward the open position, and the folding assist mechanism is used to provide a force for the bracket assembly to move toward the folding position, and the force provided by the return assist mechanism is greater than the force provided by the folding assist mechanism.

2. The hinge module according to claim 1, wherein The return assist mechanism includes a first cam and a follower assembly, the first cam is connected to the bracket assembly and can rotate with the bracket assembly, the axial end face of the first cam is provided with a convex tooth, the convex tooth has a first extrusion slope and a second extrusion slope with opposite inclination directions, the follower assembly can elastically and telescopically press against the side of the first cam provided with the convex tooth, and the side of the follower assembly opposite to the convex tooth is provided with a first guide slope and a second guide slope with opposite inclination directions; when the bracket assembly moves between the folded position and the critical position, the first extrusion slope is squeezed and slid along the first guide slope; when the bracket assembly moves between the critical position and the open position, the second extrusion slope is squeezed and slid along the second guide slope.

3. The hinge module according to claim 2, wherein The base is provided with a connecting shaft, the first cam is rotatably mounted on the connecting shaft, the follower assembly includes a slider and an elastic reset member, the slider is axially slidably mounted on the connecting shaft, the first guide bevel and the second guide bevel are provided on the side of the slider opposite to the first cam, the elastic reset member is mounted on the connecting shaft and elastically abuts against the side of the slider away from the first cam.

4. The hinge module according to claim 2, wherein A third guide slope is further provided on the side of the follower assembly opposite to the convex tooth. The third guide slope is located on the side of the second guide slope away from the first guide slope. The inclination direction of the third guide slope is opposite to that of the second guide slope. A stop groove is formed between the third guide slope and the first guide slope. When the bracket assembly is in the open position, the convex tooth engages with the stop groove. When the bracket assembly is subjected to an outward-turning force, the first extrusion slope is extruded and slides along the third guide slope.

5. The hinge module according to claim 4, wherein The hinge module further includes a clamping force compensation mechanism disposed between the base and the bracket assembly; when the outward turning angle of the bracket assembly is less than a preset angle, the clamping force compensation mechanism is configured to provide an auxiliary clamping force for the bracket assembly to turn inward, and the auxiliary clamping force increases as the outward turning angle of the bracket assembly increases; when the outward turning angle of the bracket assembly is greater than the preset angle, the auxiliary clamping force remains constant or the auxiliary clamping force is removed.

6. The hinge module according to claim 5, wherein, The clamping force compensation mechanism includes a boosting elastic member and a triggering member. The boosting elastic member is disposed between the base and the bracket assembly, and the triggering member is disposed on a side of the bracket assembly close to the boosting elastic member; when the outward turning angle of the bracket assembly is less than the preset angle, the triggering member is in interference contact with the boosting elastic member, and the interference amount increases as the outward turning angle of the bracket assembly increases; when the outward turning angle of the bracket assembly is greater than the preset angle, the interference amount between the triggering member and the boosting elastic member remains constant or the interference amount is zero.

7. The hinge module according to claim 5, wherein The base is provided with a connecting shaft. The clamping force compensation mechanism includes a second cam, a movable block, and an elastic reset member. The second cam is connected to the bracket assembly and is rotatably sleeved on the connecting shaft. A boss is provided on an axial end surface of the second cam. The boss has an adjacent first plane and a first inclined surface. The movable block is axially slidably sleeved on the connecting shaft. A convex portion is provided on a side of the movable block opposite to the second cam. The convex portion has an adjacent second plane and a second inclined surface. The elastic reset member is sleeved on the connecting shaft and elastically abuts against a side of the movable block away from the second cam; when the outward turning angle of the bracket assembly is less than the preset angle, the first inclined surface slides by squeezing along the second inclined surface; when the outward turning angle of the bracket assembly is greater than the preset angle, the first plane abuts against the second plane.

8. The hinge module according to claim 1, wherein, The hinge module further includes a housing. The housing has a semi-enclosed structure with an opening on one side. The base is connected to the opening side of the housing, and a wire passing space is formed between the base and the housing.

9. The hinge module according to claim 1, wherein, The bracket assembly includes a first cantilever and a second cantilever. One side of the first cantilever is rotatably connected to the base, and the second cantilever is movably connected to a side of the first cantilever away from the base. The second cantilever has a deployed state and a folded state relative to the first cantilever. In the deployed state, the second cantilever forms a first preset angle with the first cantilever and remains fixed. In the folded state, the second cantilever forms a second preset angle with the first cantilever and remains fixed. The first preset angle is greater than the second preset angle.

10. The hinge module according to claim 9, characterized in that, Axial holes for a rotating shaft to pass through are correspondingly provided on the first cantilever and the second cantilever. One end of the rotating shaft extends out of the axial hole and is axially limited by a clamping member. A convex key is provided on a circumferential surface of the rotating shaft, and first and second key grooves are provided on an inner wall surface of the axial hole. In the deployed state, the convex key is in clamping fit with the first key groove. In the folded state, the convex key is in clamping fit with the second key groove.

11. The hinge module according to claim 9, characterized in that, The second cantilever is provided with a first protrusion and a second protrusion. In the unfolded state, the first protrusion engages with the overlapping surface of the first cantilever for force conduction. In the folded state, the second protrusion engages with the overlapping surface of the first cantilever for force conduction.

12. The hinge module according to any one of claims 1 to 11, characterized in that, Two sets of the bracket assemblies are provided, and the two sets of the bracket assemblies are respectively rotatably connected to opposite sides of the base.

13. The hinge module according to claim 12, wherein, The folding assistance mechanism includes a torsion spring and two fixed shafts. Each of the bracket assemblies is respectively connected to one of the fixed shafts. One end of the torsion spring is connected to one of the fixed shafts, and the other end is connected to the other fixed shaft.

14. An intelligent glasses, characterized in that, It includes temple arms, a spectacle frame, and the hinge module according to any one of claims 1 to 13, and the temple arms and the spectacle frame are connected through the hinge module.

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