Hinge mechanism and electronic device

Abstract

The invention provides a hinge mechanism and electronic equipment. The hinge mechanism comprises a base frame assembly, a first transmission assembly and a second transmission assembly. The first transmission assembly and the second transmission assembly are connected to the two sides of the base frame assembly side by side in the first direction. In the second direction, the first transmission assembly protrudes out of the second transmission assembly to form a stepped assembly structure. The first transmission assembly and the second transmission assembly of the hinge mechanism are arranged side by side in the first direction, and the first transmission assembly protrudes out of the second transmission assembly in the second direction, so that a stepped assembly structure is formed. The stepped assembly structure optimizes the structural layout of the hinge mechanism, the damping assembly and other structural parts with large sizes can be concentrated on one side of the first transmission assembly so as to reduce the structure and assembly cost, and the sunken space formed by the stepped assembly structure can be used for assembling the hinge mechanism or other parts of the electronic equipment. Therefore, the lightness and thinness of the electronic equipment can be improved.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic technology, and in particular to a hinge mechanism and an electronic device. Background Art

[0002] In the related art, electronic devices with foldable screens are usually bent based on a hinge mechanism, and the hinge mechanism often uses a bilaterally symmetrical transmission component to achieve the expected transmission effect. However, the symmetrically arranged transmission components are not conducive to the stacking of the whole machine and the utilization of space, which limits the thickness of the whole electronic device and affects the lightness and manufacturing cost of the electronic device. Summary of the invention

[0003] The present disclosure provides a hinge mechanism and an electronic device to solve related technical problems.

[0004] A first aspect of the present disclosure provides a hinge mechanism, comprising: a base assembly, a first transmission assembly, and a second transmission assembly;

[0005] The first transmission assembly and the second transmission assembly are connected side by side to two sides of the base assembly along a first direction;

[0006] In a second direction, the first transmission assembly protrudes from the second transmission assembly to form a stepped assembly structure; wherein the second direction is perpendicular to the axial direction of the hinge mechanism and the first direction.

[0007] Optionally, the hinge mechanism further comprises a synchronous connection assembly assembled to the base frame assembly;

[0008] The first transmission assembly includes a first transmission member; the second transmission assembly includes a second transmission member; the first transmission member and the second transmission member are respectively in transmission cooperation with the synchronous connection assembly to achieve synchronous transmission.

[0009] Optionally, the first transmission member and the second transmission member include a first meshing transmission member; the synchronous connection assembly includes at least one second meshing transmission member, and the first meshing transmission member meshes with the second meshing transmission member;

[0010] Alternatively, the first transmission member and the second transmission member include a sliding connection member, the synchronous connection assembly includes a sliding matching member, and the sliding connection member and the sliding matching member are slidably connected.

[0011] Optionally, the first transmission assembly includes a first transmission member; the second transmission assembly includes a second transmission member;

[0012] The first transmission member and the second transmission member are movably connected to the base frame assembly respectively.

[0013] Optionally, the first transmission assembly includes a first transmission member, and the first transmission member is movably connected to the base assembly; the second transmission assembly can be detachably assembled to the base assembly;

[0014] Alternatively, the first transmission assembly can be detachably assembled to the base assembly; the second transmission assembly includes a second transmission member, and the second transmission member is movably connected to the base assembly.

[0015] Optionally, the first transmission assembly includes a damping assembly, a first transmission member and a third transmission member;

[0016] The first transmission member and the third transmission member are movably connected to the base frame assembly respectively;

[0017] The damping assembly includes a first damping structure and a second damping structure, the first damping structure is arranged on the first transmission member and / or the third transmission member, and the first damping structure is abutted against the second damping structure.

[0018] Optionally, the damping assembly further comprises:

[0019] A first connecting rod, the first damping structure is provided with a first connecting hole, and the second damping structure is provided with a second connecting hole; the first connecting rod is plugged into the first connecting hole and the second connecting hole, and forms an axial limit with the first connecting rod through a limiter;

[0020] The elastic member is sleeved on the first connecting rod, and the first connecting rod abuts against one end of the elastic member for limiting position, and the other end of the elastic member abuts against the second damping structure or a side of the second damping structure facing the elastic member.

[0021] Optionally, the first damping structure includes a cam or a friction plate.

[0022] Optionally, the second damping structure includes a damping portion and a third limiting portion; the damping portion abuts against the first damping structure, and the third limiting portion abuts against the second transmission assembly.

[0023] Optionally, the second damping structure includes a main body structure, the damping portion includes a cam or a friction plate arranged on a surface of one side of the main body structure, and the third limiting portion includes a limiting surface located on one side of the damping portion in the first direction.

[0024] Optionally, a first limiting groove is provided at the first end of the first connecting rod, and the limiting member is provided with a first limiting portion; the first limiting groove and the first limiting portion are engaged and limited.

[0025] Optionally, the second transmission assembly includes:

[0026] a second transmission member;

[0027] The second connecting rod, the second transmission member is provided with a third connecting hole, the third limiting portion is provided with a fourth connecting hole, the second connecting rod is plugged into the third connecting hole and the fourth connecting hole, and axial limitation is formed by the limiting member.

[0028] Optionally, a second limiting groove is provided at the second end of the second connecting rod, and the limiting member is provided with a second limiting portion; the second limiting groove and the second limiting portion are engaged and limited.

[0029] Optionally, the third transmission member includes a first hinge portion, and the first hinge portion is hingedly matched with the base frame assembly.

[0030] Optionally, the base frame assembly also includes a support plate and a cover plate fixedly connected to the support plate; one of the support plate and the cover plate is provided with an arc-shaped protrusion, and the other of the support plate and the cover plate is provided with an arc-shaped recess matching the arc-shaped protrusion structure; the arc-shaped protrusion is assembled in the arc-shaped recess to form an arc-shaped gap; the first hinged portion is hinged to the arc-shaped gap.

[0031] Optionally, the third transmission member includes a second hinged portion;

[0032] The hinge mechanism also includes a fixing member, the second hinged portion is hingedly matched with the fixing member, and the first transmission member is slidably connected with the fixing member.

[0033] Optionally, the first transmission assembly further includes a fourth transmission member; the third transmission member includes a second hinged portion;

[0034] The hinge mechanism also includes a fixing member, the fourth transmission member is hingedly matched with the second hinged portion and the fixing member respectively, and the first transmission member is slidably connected with the fixing member.

[0035] Optionally, the hinge mechanism further comprises a supporting structure, and the supporting structure is mounted on the fixing member.

[0036] According to a second aspect of the present disclosure, an electronic device is provided, comprising: any hinge mechanism described in the first aspect.

[0037] Optionally, the electronic device further includes a first screen; the first screen is assembled and cooperated with the hinge mechanism to achieve folding or unfolding during the transmission process of the hinge structure.

[0038] Optionally, the electronic device further includes a screen middle frame and a second screen, and the first screen and the second screen are arranged on both sides of the screen middle frame; when the first screen is unfolded, at least a portion of the screen middle frame is located in the recessed space formed by the stepped assembly structure.

[0039] A second aspect of the present disclosure provides an electronic device,

[0040] The technical solution provided by the present disclosure can at least achieve the following beneficial effects:

[0041] The first transmission assembly and the second transmission assembly of the hinge mechanism disclosed in the present invention are arranged side by side along the first direction, and the first transmission assembly protrudes from the second transmission assembly in the second direction to form a stepped assembly structure. The stepped assembly structure optimizes the structural layout of the hinge mechanism, and the recessed space formed therein can be used to assemble the hinge mechanism or other components of the electronic device, thereby helping to improve the lightness and thinness of the electronic device.

[0042] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0044] Figure 1 is a schematic diagram of an exploded structure of a hinge mechanism in an exemplary embodiment of the present disclosure;

[0045] Figure 2 is a schematic diagram of a top view of a hinge mechanism in a folded state in an exemplary embodiment of the present disclosure;

[0046] Figure 3 is a schematic diagram of a top view of a hinge mechanism in an expanded state in an exemplary embodiment of the present disclosure;

[0047] Figure 4 is a schematic diagram of a three-dimensional structure of a hinge mechanism in an exemplary embodiment of the present disclosure in a folded state;

[0048] Figure 5 It is a schematic diagram of the three-dimensional structure of a hinge mechanism in an exemplary embodiment of the present disclosure in an unfolded state. DETAILED DESCRIPTION

[0049] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this specification. Instead, they are merely examples of devices and methods consistent with some aspects of this specification as detailed in the appended claims.

[0050] The terms used in this disclosure are only for the purpose of describing specific embodiments and are not intended to limit the disclosure. Unless otherwise defined, the technical terms or scientific terms used in this specification should be understood by people with ordinary skills in the field to which the disclosure belongs. The words "first", "second" and similar words used in this specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantitative limit, but indicate the existence of one. "Multiple" or "several" means two and more than two. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for the convenience of explanation and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect.

[0051] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure. The singular forms of "a", "the" and "the" used in this specification and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0052] In the related art, electronic devices with foldable screens are usually bent based on a hinge mechanism, and the hinge mechanism often uses a bilaterally symmetrical transmission component to achieve the expected transmission effect. However, the symmetrically arranged transmission components are not conducive to the stacking of the whole machine and the utilization of space, which limits the thickness of the whole electronic device and affects the lightness and manufacturing cost of the electronic device.

[0053] The present disclosure provides a hinge mechanism. Figure 1 is a schematic diagram of an exploded structure of a hinge mechanism in an exemplary embodiment of the present disclosure, Figure 2 is a schematic diagram of a top view of a hinge mechanism in a folded state in an exemplary embodiment of the present disclosure, Figure 3 is a schematic diagram of a top view of a hinge mechanism in an expanded state in an exemplary embodiment of the present disclosure, Figure 4 is a schematic diagram of a three-dimensional structure of a hinge mechanism in a folded state in an exemplary embodiment of the present disclosure, Figure 5 is a schematic diagram of a three-dimensional structure of a hinge mechanism in an exemplary embodiment of the present disclosure in an unfolded state. Figure 1-Figure 5As shown, where the solid arrow can represent the first direction, the dashed arrow can represent the second direction, and the dot-dash arrow can represent the axial direction of the hinge mechanism, the hinge mechanism 1 includes a base assembly 13, a first transmission assembly 121, and a second transmission assembly 122. The first transmission assembly 121 and the second transmission assembly 122 are connected side by side on both sides of the base assembly 13 along the first direction. In the second direction, the first transmission assembly 121 protrudes from the second transmission assembly 122 to form a stepped assembly structure. Wherein, the second direction is perpendicular to the axial direction of the hinge mechanism 1 and the first direction.

[0054] Since the first transmission assembly 121 and the second transmission assembly 122 of the hinge mechanism 1 are arranged side by side in the first direction, and the first transmission assembly 121 protrudes from the second transmission assembly 122 in the second direction, a stepped assembly structure is formed. The stepped assembly structure optimizes the structural layout of the hinge mechanism 1, and can concentrate larger structural parts such as the damping assembly 14 on one side of the first transmission assembly 121 to reduce the structural and assembly costs, and the recessed space 12 formed by the stepped assembly structure can be used to assemble the hinge mechanism 1 or other components of the electronic device, thereby helping to improve the lightness and thinness of the electronic device.

[0055] It should be noted that the above-mentioned stepped assembly structure includes a first step formed by the first transmission component 121 in the second direction, and a second step formed by the second transmission component 122 in the second direction. Since the first step protrudes relative to the second step in the second direction and the second step is recessed relative to the first step in the second direction, the above-mentioned recessed space 12 is formed on one side of the second step along the second direction.

[0056] In addition, if Figure 1-Figure 5 As shown, the axial direction of the hinge mechanism 1 can be the direction in which the rotating shaft of the hinge structure in the hinge mechanism 1 is set. The first direction can be the width direction of the base assembly 13, and the transmission effect is obtained on both sides of the width direction of the base assembly 13 through the first transmission assembly 121 and the second transmission assembly 122. The first direction can be perpendicular to the rotating shaft direction. The second direction is perpendicular to the axial direction of the hinge mechanism 1 and the first direction, respectively, so as to form a stepped assembly structure in the thickness direction of the hinge mechanism 1.

[0057] In some embodiments, the hinge mechanism 1 further includes a synchronous connection assembly 11 assembled on the base assembly 13, the first transmission assembly 121 includes a first transmission member 1211, and the second transmission assembly 122 includes a second transmission member 1221. The first transmission member 1211 and the second transmission member 1221 are respectively matched with the synchronous connection assembly 11 to achieve synchronous transmission. In this embodiment, the first transmission assembly 121 and the second transmission assembly 122 forming a stepped assembly structure can be applied to the hinge mechanism 1 of synchronous transmission.

[0058] In the above embodiment, the first transmission member 1211 and the second transmission member 1221 include a first meshing transmission member, and the synchronous connection assembly 11 includes at least one second meshing transmission member, and the first meshing transmission member meshes with the second meshing transmission member to reduce space occupation and improve transmission reliability through meshing. For example, the first meshing transmission member can be a gear, and the second meshing transmission member can be a gear, so as to achieve a transmission effect of synchronization between the first transmission member 1211 and the second transmission member 1221 through gear transmission. For another example, the first meshing transmission member can be a gear, and the second meshing transmission member includes a rack, so as to achieve a transmission effect of synchronization between the first transmission member 1211 and the second transmission member 1221 through gear and rack transmission.

[0059] The synchronous connection component 11 may include at least one second meshing transmission member. For example, when the synchronous connection component 11 includes a gear, it may be one gear or a gear set formed by more than two gears, and the present disclosure is not limited to this.

[0060] Alternatively, the first transmission member 1211 and the second transmission member 1221 include a sliding connection member, the synchronous connection assembly 11 includes a sliding matching member, and the sliding connection member and the sliding matching member are slidably connected. For example, the sliding matching member is a structure including a slide groove, and the sliding connection member is a structure including a slider, and the first transmission member 1211 and the second transmission member 1221 are synchronized through the sliding connection between the slide groove and the slider.

[0061] In other embodiments, the first transmission assembly 121 and the second transmission assembly 122 forming the stepped assembly structure can also be applied to the hinge mechanism 1 of asynchronous transmission:

[0062] In some embodiments, the first transmission assembly 121 includes a first transmission member 1211, and the second transmission assembly 122 includes a second transmission member 1221. The first transmission member 1211 and the second transmission member 1221 are respectively movably connected to the base assembly 13, so that a complementary transmission relationship is formed through the movably connected first transmission member 1211 and the second transmission member 1221 with the base assembly 13, thereby obtaining an asynchronous transmission effect. The first transmission member 1211 and the second transmission member 1221 can be gears, so that the movably connected transmission is realized through the transmission of the gears and the base assembly 13. The first transmission member 1211 and the base assembly 13 are driven by gear meshing, and the second transmission member 1221 and the base assembly 13 are driven by gear meshing. The gear transmissions of the two are not related to each other, so that asynchronous transmission can be realized.

[0063] In other embodiments, the first transmission assembly 121 includes a first transmission member 1211, which is movably connected to the base assembly 13, and the second transmission assembly 122 is detachably assembled to the base assembly 13. Alternatively, the first transmission assembly 121 is detachably assembled to the base assembly 13, and the second transmission assembly 122 includes a second transmission member 1221, which is movably connected to the base assembly 13. That is, during the transmission process, one of the first transmission assembly 121 and the second transmission assembly 122 is detachably connected to the base assembly 13 without relative movement, and the other is movably connected to the base assembly 13, so that asynchronous transmission can be achieved.

[0064] In some embodiments, the first transmission assembly 121 includes a damping assembly 14, a first transmission member 1211 and a third transmission member 1212, and the first transmission member 1211 and the third transmission member 1212 are respectively movably connected to the base assembly 13. The damping assembly 14 includes a first damping structure 141 and a second damping structure 142, and the first damping structure 141 is arranged on the first transmission member 1211 and / or the third transmission member 1212, and the first damping structure 141 is abutted with the second damping structure 142. The damping assembly 14 can provide buffering during the transmission process of the first transmission assembly 121, and improve the transmission reliability of the first transmission assembly 121 and the hinge mechanism 1 as a whole. The first damping structure 141 is arranged on the first transmission member 1211 and / or the third transmission member 1212 to achieve the expected damping effect.

[0065] The first transmission member 1211 and the third transmission member 1212 can respectively cooperate with the output structure of the hinge mechanism 1 to form a motion track of the output structure. Taking the synchronous movement of the first transmission component 121 and the second transmission component 122 as an example, the first transmission member 1211 can be used as a synchronization rod, and the third transmission member 1212 can be used as a track rod. The synchronization rod and the track rod are respectively connected to the fixed member 15 as the output structure to control the motion track of the fixed member 15 during the transmission process.

[0066] In the above embodiment, the damping assembly 14 may further include a first connecting rod 143 and an elastic member 144. The first damping structure 141 is provided with a first connecting hole 1411, and the second damping structure 142 is provided with a second connecting hole 1421. The first connecting rod 143 is plugged into the first connecting hole 1411 and the second connecting hole 1421, and forms an axial limit with the first connecting rod 143 through a limiter 145. The elastic member 144 is sleeved on the first connecting rod 143, and the first connecting rod 143 is abutted against one end of the elastic member 144 for limit, and the other end of the elastic member 144 is abutted against the second damping structure 142 or the side of the second damping structure 142 facing the elastic member 144. The damping assembly 14 is used to make the first damping structure 141 and the second damping structure 142 abut against each other during the transmission process, thereby obtaining the expected damping effect.

[0067] It should be noted that the first damping structure 141 may include a cam or a friction plate.

[0068] In the above embodiment, the second damping structure 142 may include a damping portion 1423 and a third limiting portion 1422, the damping portion 1423 abuts against the first damping structure 141, and the third limiting portion 1422 abuts against the second transmission assembly 122. The damping portion 1423 may abut against the first damping structure 141 to obtain a damping effect during the transmission process, and the third limiting portion 1422 directly abuts against the second transmission assembly 122 to achieve assembly, and the damping portion 1423 on one side cooperates with the first damping structure 141 to provide sufficient torque for the hinge mechanism 1.

[0069] The second damping structure 142 may include a main body structure, the damping part 1423 includes a cam or a friction plate disposed on a surface of one side of the main body structure, and the third limiting part 1422 includes a limiting surface located on one side of the damping part 1423 in the first direction. The main body structure may be a plate-like structure, the damping part 1423 is disposed on the plate-like structure, and the surface of the plate-like structure located on one side of the damping part 1423 in the first direction is used as a limiting surface, so as to achieve a balanced assembly with the second transmission assembly 122 during the transmission process, and damping is obtained by the damping part 1423 on one side cooperating with the first damping structure 141.

[0070] In the above embodiment, the first end 1431 of the first connecting rod 143 may be provided with a first limiting groove 1432, and the limiting member 145 is provided with a first limiting portion 1451. The first limiting groove 1432 and the first limiting portion 1451 are engaged and limited to improve the limiting reliability.

[0071] In some embodiments, the second transmission assembly 122 includes a second transmission member 1221 and a second connecting rod 1222, the second connecting rod 1222, the second transmission member 1221 is provided with a third connecting hole 1221a, the third limiting portion 1422 is provided with a fourth connecting hole 1422a, the second connecting rod 1222 is plugged into the third connecting hole 1221a and the fourth connecting hole 1422a, and an axial limit is formed by the limiting member 145. The transmission function and assembly relationship of the second transmission assembly 122 are realized through the above structure, so that the transmission of the second transmission assembly 122 is reliable.

[0072] In the above embodiment, the second end 1222a of the second connecting rod 1222 is provided with a second limiting groove 1222b, and the limiting member 145 is provided with a second limiting portion 1452; the second limiting groove 1222b and the second limiting portion 1452 are engaged and limited to improve the limiting reliability.

[0073] The limiting member 145 includes a first limiting portion 1451 and a second limiting portion 1452, wherein the first limiting portion 1451 is engaged with the first limiting groove 1432, and the second limiting portion 1452 is engaged with the second limiting groove 1222b, thereby realizing the limiting of the first connecting rod 143 and the second connecting rod 1222. The limiting member 145 may be a plate, and the first limiting portion 1451 and the second limiting member 145 may be hooks disposed on the plate, which are engaged with the first limiting groove 1432 and the second limiting groove 1222b to realize the limiting function.

[0074] In some embodiments, the third transmission member 1212 may include a first hinge portion 1212 a , and the first hinge portion 1212 a is hingedly matched with the base assembly 13 to achieve an overall transmission effect of the third transmission member 1212 .

[0075] For example, the above-mentioned base assembly 13 may also include a support plate 131 and a cover plate 132 fixedly connected to the support plate 131, one of the support plate 131 and the cover plate 132 is provided with an arc-shaped protrusion 1311, and the other of the support plate 131 and the cover plate 132 is provided with an arc-shaped recess that matches the structure of the arc-shaped protrusion 1311. The arc-shaped protrusion 1311 is assembled in the arc-shaped recess to form an arc-shaped interval, and the first hinge part 1212a is hinged to the arc-shaped interval. Alternatively, the first hinge part 1212a and the base assembly 13 can also be hinged by matching the shaft hole, and the present disclosure is not limited to this.

[0076] Furthermore, the third transmission member 1212 may further include a second hinged portion 1212b, the hinge mechanism 1 further includes a fixing member 15, the second hinged portion 1212b is hingedly matched with the fixing member 15, and the first transmission member 1211 is slidably connected with the fixing member 15. The third transmission member 1212 is hingedly connected with the fixing member 15 and the base assembly 13 respectively to achieve the transmission effect of the secondary hinge, and the transmission of the third transmission member 1212 and the first transmission member 1211 acts on the fixing member 15 together, so that the fixing member 15 obtains the expected motion trajectory.

[0077] Alternatively, the first transmission assembly 121 further includes a fourth transmission member, and the third transmission member 1212 includes a second hinged portion 1212b. The hinge mechanism 1 further includes a fixing member 15, and the fourth transmission member is respectively hingedly matched with the second hinged portion 1212b and the fixing member 15, and the first transmission member 1211 is slidably connected with the fixing member 15. The fixing member 15 is hingedly connected to the base frame assembly 13 through the third transmission member 1212 and the fourth transmission member, thereby realizing the transmission effect of the three-stage hinge.

[0078] Similarly, the second transmission assembly 122 may further include a fifth transmission member 1223, and the fifth transmission member 1223 may include a third hinge and a fourth hinge portion 1223b, the hinge mechanism 1 further includes a fixing member 15, the third hinge portion 1223a is hingedly matched with the base assembly 13, the fourth hinge portion 1223b is hingedly matched with the fixing member 15, and the second transmission member 1221 is slidably connected with the fixing member 15. The fifth transmission member 1223 is hingedly connected with the fixing member 15 and the base assembly 13 respectively to achieve the transmission effect of the secondary hinge, and the transmission of the fifth transmission member 1223 and the second transmission member 1221 acts on the fixing member 15 together, so that the fixing member 15 obtains the expected motion trajectory. Among them, the hinge mode of the third hinge portion 1223a and the base assembly 13 can be a shaft hole hinge or a hinge scheme of an arc plate and an arc interval.

[0079] Alternatively, the second transmission assembly 122 further includes a sixth transmission member, and the fifth transmission member 1223 includes a third hinged portion 1223a. The hinge mechanism 1 further includes a fixing member 15, and the sixth transmission member is respectively hingedly matched with the third hinged portion 1223a and the fixing member 15, and the second transmission member 1221 is slidably connected with the fixing member 15. The fixing member 15 is hingedly connected to the base frame assembly 13 through the fifth transmission member 1223 and the sixth transmission member, thereby realizing the transmission effect of the three-stage hinge.

[0080] In some embodiments, the hinge mechanism 1 further includes a supporting structure 16 , which is mounted on the fixing member 15 to support structural members such as a screen.

[0081] For example Figure 1-5 As shown, the first transmission member 1211 includes a gear and a cam, and the gear and the cam are arranged at both ends of the first transmission member 1211 arranged along the axial direction. The second transmission member 1221 includes a gear structure, and the end face opposite to the gear is a plane. A cam structure can be set on one side of the second damping structure 142, and the other side is a plane that abuts and contacts with the end face of the second transmission member 1221 opposite to the gear. During the transmission process, the cam located on the first transmission member 1211 abuts against the cam located on the second damping structure 142 to provide a damping effect for the hinge mechanism 1 during the rotation process, reducing the structural space occupied by the damping structure on the second transmission component 122, and can also improve cost savings and optimize the structural layout of the hinge mechanism 1.

[0082] The present disclosure further provides an electronic device, which includes the hinge mechanism 1 described above.

[0083] Since the first transmission assembly 121 and the second transmission assembly 122 of the hinge mechanism 1 are arranged side by side in the first direction, and the first transmission assembly 121 protrudes from the second transmission assembly 122 in the second direction, a stepped assembly structure is formed. The stepped assembly structure optimizes the structural layout of the hinge mechanism 1, and the recessed space 12 formed therein can be used to assemble the hinge mechanism 1 or other components of the electronic device, thus helping to improve the lightness and thinness of the electronic device.

[0084] In some embodiments, the electronic device also includes a first screen 21, which is assembled and cooperated with the hinge mechanism 1 to achieve folding or unfolding during the transmission process of the hinge structure. Based on the hinge mechanism 1, bending support for the first screen 21 is achieved, thereby improving the feel and reliability of the foldable first screen 21 during use.

[0085] Furthermore, the electronic device further includes a screen middle frame 23 and a second screen 22, the first screen 21 and the second screen 22 are arranged on both sides of the screen middle frame 23, and when the first screen 21 is unfolded, at least a portion of the screen middle frame 23 is located in the recessed space 12 formed by the stepped assembly structure. The recessed space 12 of the stepped assembly structure is used to accommodate the screen middle frame 23, thereby avoiding the second screen 22 from occupying the extra thickness of the electronic device during the assembly process, and helping to improve the lightness and thinness of the electronic device.

[0086] It should be noted that the above-mentioned electronic devices may be mobile phones, tablet computers, laptop computers, medical terminals, vehicle-mounted terminals, wearable devices, etc.

[0087] The above is only a preferred embodiment of the present disclosure and does not limit the present disclosure in any form. Although the present disclosure has been disclosed as a preferred embodiment as above, it is not used to limit the present disclosure. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present disclosure. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present disclosure without departing from the content of the technical solution of the present disclosure are still within the scope of the technical solution of the present disclosure.

Claims

1. A hinge mechanism, characterized in that: include: A base frame assembly (13), a first transmission assembly (121) and a second transmission assembly (122); The first transmission assembly (121) and the second transmission assembly (122) are connected side by side to two sides of the base assembly along a first direction; In a second direction, the first transmission assembly (121) protrudes from the second transmission assembly (122) to form a stepped assembly structure; wherein the second direction is perpendicular to the axial direction of the hinge mechanism and the first direction.

2. The hinge mechanism according to claim 1, characterized in that: The hinge mechanism further comprises a synchronous connection component (11) assembled on the base frame component (13); The first transmission assembly (121) comprises a first transmission member (1211); the second transmission assembly (122) comprises a second transmission member (1221); the first transmission member (1211) and the second transmission member (1221) respectively cooperate with the synchronous connection assembly (11) to achieve synchronous transmission.

3. The hinge mechanism according to claim 2, characterized in that: The first transmission member (1211) and the second transmission member (1221) include a first meshing transmission member; the synchronous connection assembly (11) includes at least one second meshing transmission member, and the first meshing transmission member meshes with the second meshing transmission member; Alternatively, the first transmission member (1211) and the second transmission member (1221) include a sliding connection member, the synchronous connection assembly (11) includes a sliding matching member, and the sliding connection member and the sliding matching member are slidably connected.

4. The hinge mechanism according to claim 1, characterized in that: The first transmission assembly (121) comprises a first transmission member (1211); the second transmission assembly (122) comprises a second transmission member (1221); The first transmission member (1211) and the second transmission member (1221) are respectively movably connected to the base frame assembly (13).

5. The hinge mechanism according to claim 1, characterized in that: The first transmission assembly (121) comprises a first transmission member (1211), and the first transmission member (1211) is movably connected to the base frame assembly (13); the second transmission assembly (122) is detachably assembled on the base frame assembly (13); Alternatively, the first transmission assembly (121) can be detachably assembled to the base assembly (13); the second transmission assembly (122) comprises a second transmission member (1221), and the second transmission member (1221) is movably connected to the base assembly (13).

6. The hinge mechanism according to claim 1, characterized in that: The first transmission component (121) comprises a damping component (14), a first transmission member (1211) and a third transmission member (1212); The first transmission member (1211) and the third transmission member (1212) are respectively movably connected to the base frame assembly (13); The damping assembly (14) comprises a first damping structure (141) and a second damping structure (142); the first damping structure (141) is arranged on the first transmission member (1211) and / or the third transmission member (1212); the first damping structure (141) is in abutment with the second damping structure (142).

7. The hinge mechanism according to claim 6, characterized in that: The damping assembly (14) further comprises: A first connecting rod (143), the first damping structure (141) is provided with a first connecting hole (1411), and the second damping structure (142) is provided with a second connecting hole (1421); the first connecting rod (143) is plugged into the first connecting hole (1411) and the second connecting hole (1421), and forms an axial limit with the first connecting rod (143) through a limiter (145); The elastic member (144) is sleeved on the first connecting rod (143), and the first connecting rod (143) abuts against one end of the elastic member (144) for limiting position, and the other end of the elastic member (144) abuts against the second damping structure (142) or the side of the second damping structure (142) facing the elastic member (144).

8. The hinge mechanism according to claim 6, characterized in that: The first damping structure (141) comprises a cam or a friction plate.

9. The hinge mechanism according to claim 6, characterized in that: The second damping structure (142) comprises a damping portion (1423) and a third limiting portion (1422); the damping portion (1423) abuts against the first damping structure (141), and the third limiting portion (1422) abuts against the second transmission assembly (122).

10. The hinge mechanism according to claim 9, characterized in that: The second damping structure (142) comprises a main body structure, the damping portion (1423) comprises a cam or a friction plate arranged on a surface of one side of the main body structure, and the third limiting portion (1422) comprises a limiting surface located on one side of the damping portion (1423) in a first direction.

11. The hinge mechanism according to claim 7, characterized in that: The first end (1431) of the first connecting rod (143) is provided with a first limiting groove (1432), and the limiting member (145) is provided with a first limiting portion (1451); the first limiting groove (1432) and the first limiting portion (1451) are engaged and limited.

12. The hinge mechanism according to claim 9, characterized in that: The second transmission assembly (122) comprises: A second transmission member (1221); A second connecting rod (1222), the second transmission member (1221) is provided with a third connecting hole (1221a), the third limiting portion (1422) is provided with a fourth connecting hole (1422a), the second connecting rod (1222) is plugged into the third connecting hole (1221a) and the fourth connecting hole (1422a), and an axial limit is formed by a limiting member (145).

13. The hinge mechanism according to claim 12, characterized in that: The second end (1222a) of the second connecting rod (1222) is provided with a second limiting groove (1222b), and the limiting member (145) is provided with a second limiting portion (1452); the second limiting groove (1222b) and the second limiting portion (1452) are engaged and limited.

14. The hinge mechanism according to claim 6, characterized in that: The third transmission member (1212) comprises a first hinged portion (1212a), and the first hinged portion (1212a) is hingedly matched with the base frame assembly (13).

15. The hinge mechanism according to claim 14, characterized in that: The base frame assembly (13) also includes a support plate (131) and a cover plate (132) fixedly connected to the support plate (131); one of the support plate (131) and the cover plate (132) is provided with an arc-shaped protrusion (1311), and the other of the support plate (131) and the cover plate (132) is provided with an arc-shaped recess that matches the structure of the arc-shaped protrusion (1311); the arc-shaped protrusion (1311) is assembled in the arc-shaped recess to form an arc-shaped interval; the first hinge portion (1212a) is hinged to the arc-shaped interval.

16. The hinge mechanism according to claim 6, characterized in that: The third transmission member (1212) comprises a second hinged portion (1212b); The hinge mechanism further comprises a fixing member (15), the second hinged portion (1212b) is hingedly matched with the fixing member (15), and the first transmission member is slidably connected with the fixing member (15).

17. The hinge mechanism according to claim 6, characterized in that: The first transmission assembly (121) further includes a fourth transmission member; the third transmission member (1212) includes a second hinged portion (1212b); The hinge mechanism also includes a fixing member (15), the fourth transmission member is hingedly matched with the second hinged portion (1212b) and the fixing member (15) respectively, and the first transmission member (1211) is slidably connected with the fixing member (15).

18. The hinge mechanism according to claim 16, characterized in that: It also comprises a supporting structure (16), wherein the supporting structure (16) is mounted on the fixing member (15).

19. An electronic device, characterized in that: include: A hinge mechanism as claimed in any one of claims 1 to 18.

20. The electronic device according to claim 19, characterized in that It also comprises a first screen (21); the first screen (21) is assembled and matched with the hinge mechanism to achieve folding or unfolding during the transmission process of the hinge structure.

21. The electronic device according to claim 20, characterized in that: It also includes a screen middle frame (23) and a second screen (22), wherein the first screen (21) and the second screen (22) are arranged on both sides of the screen middle frame (23); when the first screen (21) is unfolded, at least a portion of the screen middle frame (23) is located in the recessed space (12) formed by the stepped assembly structure.

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