CN116677704A

CN116677704A - Elastic piece, rotating shaft structure and electronic equipment

Info

Publication number: CN116677704A
Application number: CN202211467145.3A
Authority: CN
Inventors: 杨德森; 臧永强; 霍国亮; 吴崚
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-09-01
Also published as: WO2024109248A1

Abstract

The embodiment of the application discloses an elastic piece, a rotating shaft structure and electronic equipment, wherein the elastic piece can be applied to electronic equipment such as mobile phones, notebook computers and wearing equipment, and comprises a cylinder main body which is integrally formed; in addition, the elastic piece defined by the application can provide a longer-acting and stable rotating shaft torque experience depending on the long-life interval of the flexible material, and improve the experience consistency of the electronic equipment.

Description

Elastic piece, rotating shaft structure and electronic equipment

Technical Field

The present application relates to the field of electronic products, and in particular, to an elastic member, a rotating shaft structure, and an electronic device.

Background

For example, in a notebook computer, a display side and a keyboard side of the electronic device are rotatably connected through a rotating shaft structure, wherein the concave-convex wheel type rotating shaft is a common rotating shaft structure, please refer to fig. 1, fig. 1 is a schematic structural diagram of a disc spring assembly used in the concave-convex wheel type rotating shaft in the prior art, the disc spring assembly provides an axial force in the concave-convex wheel type rotating shaft, that is, when a concave wheel and a cam of the concave-convex wheel type rotating shaft rotate relatively, the disc spring assembly can compress the disc spring assembly, and the disc spring assembly can generate an axial elastic force to compress opposite surfaces of the concave wheel and the cam to generate damping, so that two parts connected through the concave-convex wheel type rotating shaft can be at a predetermined angle.

As can be seen from fig. 1, the disc spring assembly is formed by assembling a plurality of disc springs, and fig. 1 shows that the disc spring assembly comprises 5 disc springs, the specific number of the disc springs is determined according to the axial elastic force required by the actual product, each disc spring has a front surface and a back surface, and all the disc springs are assembled to form a whole through a single-layer front surface, a double-layer front surface or other schemes to be installed in the concave-convex wheel type rotating shaft. No matter what kind of assembly scheme is adopted to the disc spring subassembly, all need distinguish positive and negative assembly in proper order, and manual assembly inefficiency and easy mistake need the staff to distinguish positive and negative and pinch put in place one by one, and when the required number of pieces of disc spring increases to more the number of pieces, assembly efficiency is lower.

Therefore, how to overcome the above-mentioned drawbacks is a technical problem that the person skilled in the art is constantly focusing on.

Disclosure of Invention

The embodiment of the application provides an elastic piece, a rotating shaft structure and electronic equipment which do not need to be assembled and meet the use requirement.

In a first aspect, an elastic member may be used in a spindle mechanism of an electronic device to provide an axial force for generating damping, where the electronic device may be a notebook computer, and the elastic member includes an integrally formed barrel body having a central through hole, where a material of the barrel body may be an elastic metal, and may be integrally formed by machining, casting, or other processes. The cylinder body comprises at least two suspended beam bodies, the suspended beam bodies are arranged at intervals along the axial direction, the suspended beam bodies extend along the circumferential direction, and local positions of adjacent suspended beam bodies are fixedly connected, so that the cylinder body can elastically deform along the axial direction under the action of axial force. According to the application, the elastic piece is the integrally formed cylinder main body, and the axial elastic deformation of the cylinder main body can be realized by arranging the suspended beam bodies which are sequentially connected on the cylinder main body, so that the suspended beam bodies are integrally formed without assembly, can be arranged on the mandrel at one time, and the assembly efficiency of the rotating shaft mechanism is improved.

In addition, each disc spring has larger rigidity difference due to different materials, thickness and shape, so that the integral difference after assembly is obvious, the yield layers are uneven, and the consistency experience of the same product is also greatly different. The elastic piece limited by the application can depend on the long service life interval (about 10 ten thousand times is estimated) of the flexible material, provide a longer-acting and stable rotating shaft torque experience, and improve the experience consistency of the electronic equipment.

Based on the first aspect, the present application further provides a first specific implementation manner of the first aspect: all gaps formed between adjacent suspended beam bodies comprise a first gap and a second gap, when the cylinder main body is subjected to axial force, the first gap is deformed firstly, and when the axial force is larger than a preset value, the second gap is deformed again. In this example, the first gap and the second gap are set to be different in size or shape, so that the first gap can be deformed first, and then the second gap can be deformed later to form the rigidity-variable elastic piece, so as to adapt to the requirements of different structures. The first gap and the second gap are located at different axial positions, i.e. they may be arranged in a cross section that is not perpendicular to the axis.

Based on the first aspect or the first specific embodiment, the present application further provides a second specific embodiment of the first aspect: the cylinder main body comprises a first cylinder body and a second cylinder body which are positioned at two axial ends, the first cylinder body and the second cylinder body are of annular structures, each suspension Liang Tiwei is arranged between the first cylinder body and the second cylinder body, the first cylinder body and the second cylinder body are connected through each suspension beam body to form a whole, the suspension beams positioned at two axial ends of each suspension beam body can be fixedly connected with the cylinder bodies at corresponding sides, and the suspension beams positioned at the outer sides are generally fixedly connected with the cylinder bodies at corresponding sides through two or more connecting bodies which are uniformly arranged in the circumferential direction. The outer end surfaces of the first cylinder body and the second cylinder body can be matched and designed according to the structure contacted with the first cylinder body and the second cylinder body, the whole stress of the cylinder body can be optimized, the cylinder body is uniformly compressed along the axial direction, in addition, the axial widths of the first cylinder body and the second cylinder body can be larger than that of each suspended beam body, and therefore the rigidity of the elastic piece can be properly increased.

Based on the second embodiment of the first aspect, the present application further provides a third embodiment of the first aspect: the cantilever unit comprises a first support column and a second support column, wherein the first support column and the second support column are axially provided with a preset length, the first support column is fixedly connected with a first cylinder body, the second support column is fixedly connected with a second cylinder body, and opposite end parts of the first support column and the second support column are axially provided with a preset distance in a non-compressed state; the first support and the second support are both provided with at least one suspended beam body, the suspended beam body is a cantilever beam, one end of the suspended beam body is fixedly connected with the first support and the second support, and the non-fixed ends of the adjacent suspended beam bodies are fixedly connected through a first connecting body.

The suspended beam body of the cantilever beam structure has a simple structure and is convenient for compression deformation.

Based on the third embodiment of the first aspect, the present application further provides a fourth embodiment of the first aspect: the first and second struts include two side walls arranged in the circumferential direction, and the free ends of all suspended beam bodies located on the same side of the first and second struts are connected to the same first connecting body, and the first connecting body is suspended between the first and second barrel portions. In the example, the suspended beam body on the same side is fixedly connected with the same first connector, and the forming process is simpler.

Based on the third or fourth embodiment of the first aspect, the present application further provides a fifth embodiment of the first aspect: the two side walls of each of the first support column and the second support column are provided with one suspended beam body, so that the suspended beam bodies on two sides of the first support column and the second support column are simultaneously deformed in a compression mode, deflection during axial deformation of the first support column and the second support column is avoided, axial compression is kept, rotation smoothness of the rotating shaft mechanism is improved, hand feeling is improved, friction between the cylinder main body and the mandrel can be avoided, and service life of the elastic piece is prolonged. The free ends of the suspended beam bodies on the same side are connected through the arc-shaped section or the straight section, the straight section connecting structure is simple, the arc-shaped section connection can effectively reduce stress concentration at the connecting positions of the two suspended beam bodies, and the service life of the cylinder main body is prolonged.

Based on the third or fourth embodiment of the first aspect, the present application further provides a sixth embodiment of the first aspect: two side walls of the first support column and the second support column which are arranged along the circumferential direction are provided with two or more suspended beam bodies, and when the number of the suspended beam bodies on the side walls of the first support column or the second support column is larger than two, the distances between the adjacent suspended beam bodies are equal or unequal. When the intervals between the adjacent suspended beam bodies are equal, the barrel main body of the structure is simple in molding process, and each section of the barrel main body is uniformly deformed during deformation; when the distances between adjacent suspended beam bodies are different, the distances are compressed and deformed firstly, and the distances are small, so that the non-uniform stiffness elastic piece is formed, and the requirements of different products in different use states are met.

Based on the fifth or sixth embodiment of the first aspect, the present application further provides a seventh embodiment of the first aspect: the suspended beam bodies have equal width or unequal width along the extending direction so as to form equal width or unequal width intervals between the adjacent suspended beam bodies. The suspended beam body can be an arc-shaped section, two end surfaces of the arc-shaped section can be planes, the planes are perpendicular to the axial direction of the cylinder main body, and the structure forming process is relatively simple. Of course, the two end surfaces of the suspended beam bodies can also be in the forms of bending surfaces or wavy surfaces extending along the circumferential direction, and equidistant gaps or non-equidistant gaps are formed between the adjacent suspended beam bodies.

The size and form of the spacing between adjacent suspended beam bodies can be determined according to the applied products so as to meet different requirements.

Based on the seventh embodiment of the first aspect, the present application further provides an eighth embodiment of the first aspect: the suspended beam body positioned at the inner end part of the first support column and the suspended beam body positioned at the inner end part of the second support column form a first gap, and the first gaps positioned at the two sides of the same support column are communicated through the gaps between the first support column and the second support column in a non-stressed state; and a second gap is formed between the axially adjacent suspended beam bodies on the first support and between the axially adjacent suspended beam bodies on the second support, and the maximum axial distance of the first gap is larger than that of the second gap.

In this example, when the elastic member is compressed, the first strut and the second strut are relatively closed, and then the suspended beam bodies on the first strut and the second strut are deformed at the same time, so that a non-uniform stiffness design is formed, and the design is relatively simple. Of course, the first interval can be greater than the second interval, and the second interval is greater than the third interval, can further refine the structural design of a barrel main body, for example, the clearance between the suspended beam bodies on the first support and the clearance between the suspended beam bodies on the second support are further designed into different forms, so as to meet various use requirements.

Based on the eighth embodiment of the first aspect, the present application further provides a ninth embodiment of the first aspect: the support posts and the first connecting bodies which are connected with the two ends of the support posts on the same support post in an axially adjacent manner form a second through hole, the axial maximum dimension and the circumferential maximum dimension of the first through hole are respectively larger than the axial maximum dimension and the circumferential maximum dimension of the second through hole, the first through hole comprises a first gap, and the second through hole is a second gap; the same prop is provided with a second through hole formed by surrounding the axially adjacent suspended beam bodies, the prop connected with the two ends of the same prop and the first connecting body, and the maximum size of the first through hole along the circumferential direction is larger than that of the second through hole along the axial direction. In this example, the first through hole is larger than the second through hole in size, so that the sequential deformation is easy to achieve, and the portions of the cantilever units located on two sides of the first through hole may be symmetrical structures with respect to the central axial section of the first through hole.

Based on any one of the first to ninth embodiments of the first aspect, the present application further provides a tenth embodiment of the first aspect: the axial widths of the suspended beam bodies are equal or unequal along the extending direction of the suspended beam bodies so as to form gaps with equal width or unequal width between the adjacent suspended beam bodies. That is, the suspended beam bodies can be of an equal-width structure so as to form an equal-width gap between adjacent suspended beam bodies, and the structure is relatively simple. The suspended beam bodies are of non-uniform width structures, so that gaps of other different types except for rectangles can be formed between adjacent suspended beam bodies, and stable deformation along the axial direction is realized.

Based on the tenth embodiment of the first aspect, the present application further provides an eleventh embodiment of the first aspect: each suspended beam body comprises a first section and a second section which are connected, and the axial thickness of the connecting position of the first section and the second section is smaller when the first section and the second section are closer to each other, so that prismatic gaps are formed. The prismatic through hole has a simple structure and higher axial deformation stability.

Based on the third to ninth embodiments of the first aspect, the present application further provides an eleventh embodiment of the first aspect: the number of the cantilever units is at least two, and each cantilever unit is uniformly arranged along the circumferential direction. The number of the cantilever units can be two or three or more, and the cantilever units are uniformly arranged along the axial direction, so that the deformation of the cylinder main body along the axial direction is facilitated.

Based on the eleventh embodiment of the first aspect, the present application further provides a twelfth embodiment of the first aspect: the free ends of the cantilever beam bodies extending oppositely in the adjacent cantilever units are fixed on the same first connecting body. The cantilever units of the elastic piece formed by the example can synchronously deform along the axial direction, so that the motion coaxiality is improved.

Based on the second to twelfth embodiments of the first aspect, the present application further provides a thirteenth embodiment of the first aspect: the projection of the first support column and the second support column in the plane vertical to the axial direction is completely overlapped, and the suspended beam bodies on the two sides of the first support column and the second support column are symmetrically arranged relative to the axial center plane of the cantilever unit. In this example, the cantilever unit may be symmetrically disposed about a central cross-section of the cartridge body, with better axial deformation stability.

Based on the first embodiment of the first aspect, the present application further provides a fourteenth embodiment of the first aspect: each suspension beam body is an annular beam body, the number of the annular beam bodies is at least one, all the annular beam bodies divide the space between the first cylinder body and the second cylinder body into N annular gaps, and the annular gaps are sequentially: the annular gap comprises a first annular gap body, a second annular gap body, a first cylinder body, a second cylinder body, an annular beam body, a second annular gap body, a third annular gap body, a fourth annular gap body, a fifth annular gap body, a sixth annular gap body, a seventh annular gap body and a fourth annular gap body. The annular beam body is of an integral structure, and has better synchronous deformation capability and better stability when being stressed axially. The annular gaps can be equal in width or unequal in width, and the split gaps formed by splitting each annular gap can be the same or different. The same gap may have a uniform width or a non-uniform width.

Based on the fourteenth embodiment of the first aspect, the present application further provides a fifteenth embodiment of the first aspect: the second connectors in each annular gap are circumferentially and uniformly arranged, the second connectors in the adjacent annular gaps are staggered, and the projections of the second connectors in the adjacent annular gaps in a plane perpendicular to the axial direction are at least partially misaligned; this facilitates the deformation of the annular beam bodies of each layer in the axial direction.

Or/and each sub-gap formed by dividing the same annular gap by the second connecting body is equal-width gap or unequal-width gap.

Based on the fifteenth embodiment of the first aspect, the present application further provides a sixteenth embodiment of the first aspect: each annular gap is provided with two second connectors, and the included angle between the central axial surfaces of the two second connectors in the former annular gap and the central axial surfaces of the two second connectors in the latter annular gap is 80-100 degrees. In one example, the central axial plane of the two second connectors in the former annular gap is 90 DEG from the central axial plane of the two second connectors in the latter annular gap

Based on the first aspect, the first to sixteenth embodiments, the present application further provides a second embodiment of the first aspect: the cylinder body is a cylinder. The cylinder can improve the smoothness of the rotation of the rotating shaft structure.

In a second aspect, the present application further provides a rotating shaft structure, configured to implement relative rotation between a first component and a second component, where the rotating shaft structure includes a mandrel configured to be fixed to the first component and a rotating member configured to be fixed to the second component, where the rotating member is rotationally connected to the mandrel, and the rotating shaft structure further includes a concave-convex assembly and an elastic member according to any one of the foregoing, and the sleeve is sleeved on the mandrel, where the concave-convex assembly is configured to compress the elastic member to generate axial deformation when the mandrel and the rotating member rotate relative to each other, so that an included angle between the first component and the second component is set.

In a third aspect, the present application further provides an electronic device, including a first component, a second component, and a rotating shaft structure of any one of the foregoing, where the first component and the second component are rotationally connected by the rotating shaft structure, so as to implement relative rotation.

The electronic equipment and the rotating shaft structure of the application comprise the elastic piece, so the electronic equipment and the rotating shaft structure also have the technical effects of the elastic piece.

Drawings

FIG. 1 is an exploded view of a disc spring in a prior art cam-type spindle;

FIG. 2 is a schematic diagram of a spindle structure according to an embodiment of the present application applied to an electronic device;

FIG. 3 is a schematic view of a spindle structure according to a first embodiment of the present application;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a schematic view showing the structure of an elastic member in a first example of the present application;

FIG. 6 is an expanded view of the elastic member of FIG. 5 after separation along line L;

FIG. 7 is a schematic view showing the structure of an elastic member in a first example of the present application;

FIG. 8 is an expanded view of the elastic member of FIG. 7 after separation along line L;

FIG. 9 is a schematic view showing the structure of an elastic member in a third example of the present application;

FIG. 10 is a schematic view in the direction A of FIG. 9;

FIG. 11 is a schematic view in the direction B of FIG. 9;

FIG. 12 is a schematic view of the elastic member of FIG. 10 after being separated and stretched along line L;

FIG. 13 is a schematic view showing the structure of an elastic member in a fourth example of the present application;

FIG. 14 is a schematic view of the elastic member A shown in FIG. 13;

FIG. 15 is a schematic view of the elastic member shown in FIG. 13 after being separated and stretched along line L;

FIG. 16 is a schematic view showing the structure of an elastic member in a fifth example of the present application;

fig. 17 is a schematic structural view of the elastic member shown in fig. 16 after being separated and unfolded along the line L.

Wherein, the one-to-one correspondence between the reference numerals and the component names in fig. 1 to 17 is as follows:

1, a cylinder main body; 1-1 a first barrel portion; 1-2 a second barrel portion; 11 a first leg; a second leg; 10 suspending a beam body; 10a first section; 10b second section; 101 a second via; 102 a first via; 103 gaps; 13 a first connector; a second connector 14; 151 a first annular gap; 152 a second annular gap; 153 a third annular gap; 154 a fourth annular gap; 155 a fifth annular gap; 156 a sixth annular gap; 157 a seventh annular gap; 158 an eighth annular gap; 1511 first partial gap; 1521 a second gap; 1531 third partial gap; 1541 fourth split gap; 1551 fifth partial gap; 1561 sixth split gap; 1571 seventh gap; 1581 eighth minute gap.

2, a mandrel; 3, a second bracket; 4, a first bracket; 5, a concave wheel; 6, a cam; 7, locking the nut; 8 friction plate

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Aiming at the technical problems that the disc spring assembly used for the concave-convex wheel type rotating shaft is complicated to assemble and the assembly efficiency is low due to easy error in the assembly process in the background art, the application provides the elastic piece capable of improving the assembly efficiency on the premise of meeting the use function of the concave-convex wheel type rotating shaft. That is, the elastic member can provide an axial force, and can be applied to the cam type rotating shaft instead of the disc spring in the background art.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are merely for convenience of description of the technology, and are not meant to indicate or imply that the apparatus or element to be referred to must have a specific direction, a specific direction configuration and operation, and thus the limitation of the present application is not to be construed.

In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature.

In order to make the technical solution of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings and specific embodiments.

The rotating shaft structure provided by the embodiment of the application can be applied to electronic equipment, and can be applied to sliding doors, folding machine rotating shafts, accessory rotating shaft scenes and the like. The electronic device may be a mobile terminal such as a mobile phone, a wearable device, a vehicle-mounted device, an augmented reality (augmented reality, AR)/Virtual Reality (VR) device, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (personal digital assistant, PDA), or a professional photographing device such as a digital camera, a single-lens reflex camera/micro-lens camera, a motion video camera, a cradle head camera, or an unmanned aerial vehicle.

The embodiment of the application provides a rotating shaft structure, which is used for realizing the relative rotation of a first component and a second component, wherein the first component and the second component can be any components which need to rotate relatively and can be two parts rotationally connected with electronic equipment, for example, one of the first component and the second component can be the display side of a notebook, the other one can be the keyboard side of the notebook, and of course, one of the first component and the second component can also be the first display side of a folding mobile phone, and the other one can be the second display side of the folding mobile phone. The electronic device may be rotated by using the rotating shaft structure in the present embodiment as long as it has two parts that rotate relatively.

Referring to fig. 2, fig. 2 is a schematic diagram of a spindle structure applied to an electronic device according to an embodiment of the application, wherein a in fig. 1 shows a mounting position of the spindle structure.

The electronic device includes a first component 100 and a second component 200 that rotate relatively, and in fig. 2, the electronic device is illustrated by taking a notebook computer as an example, and in fig. 1, the first component 100 of the electronic device is illustrated as a display side of the notebook computer, the second component 200 is illustrated as a keyboard side of the notebook computer, and the rotating shaft structure 300 realizes a rotational connection between the display side and the keyboard side.

Referring to fig. 3 to 4, fig. 3 is a schematic view of a rotating shaft structure according to a first embodiment of the present application, and fig. 4 is an exploded schematic view of fig. 3. Wherein F in fig. 3 indicates the force of the elastic member against the concave wheel and the cam, and the arrow indicates the direction of F.

The rotating shaft structure provided by the application comprises a mandrel 2, a cam 6, a concave wheel 5, a friction plate 8, a locking nut 7, a first bracket 4, a second bracket 3 and an elastic piece 1, wherein the opposite surfaces of the cam and the concave wheel 5 are concave-convex surfaces, one can rotate along with the mandrel 2, the other can rotate along with the mandrel 2 in the circumferential direction, the other can not rotate along with the mandrel 2, the cam 6 rotates along with the mandrel 2, the concave wheel 5 and the first bracket 4 are fixed and can not rotate along with the mandrel 2, the second bracket 3 is fixedly connected with the mandrel 2, and the first bracket 4 is connected with the concave wheel 5.

When the device is specifically applied to electronic equipment, one of the first bracket 4 and the second bracket 3 is fixed with the first component 100 of the electronic equipment, and the other is fixed with the second component 200 of the electronic equipment, so that when the mandrel 2 rotates, one of the first component 100 and the second component 200 can be driven to rotate relative to the other, in fig. 2, the mandrel 2 is fixed with the keyboard side of the notebook computer, the first bracket 4 is fixed with the display side of the notebook computer, obviously, the mandrel 2 is fixed with the display side of the notebook computer, and the first bracket 4 is also fixed with the keyboard side of the notebook computer.

When the mandrel 2 drives the second bracket 3 to rotate relative to the first bracket 4, the concave wheel 5 and the cam 6 rotate relatively, and the relative contact surfaces of the concave wheel 5 and the cam 6 are convex and concave surfaces, so that the axial relative positions of the concave wheel 5 and the cam 6 can be changed in the rotation process, and further different degrees of axial compression force are generated on the elastic piece, the elastic piece can deform to different degrees in the axial direction, and a certain damping force can be formed between the concave wheel 5 and the cam 6 under the action of the axial restoring force of the elastic piece, so that the first component 100 and the second component 200 are positioned at a preset included angle.

The elastic piece of the rotating shaft structure comprises an integrally formed cylinder body 1, wherein the cylinder body 1 is provided with a central through hole, and the cylinder body 1 is sleeved on a mandrel 2 through the central through hole. The cylinder body 1 may be a metal member, for example, a metal material having elasticity, and the cylinder body 1 may be integrally formed by machining, casting, or the like, but may be integrally formed by other means. The cylinder body 1 may be a cylindrical cylinder, and the cross sections of the outer surface and the inner surface are circular holes, and of course, the outer surface of the cylinder body 1 may also be a polygonal structure, so long as the use of the elastic member in the corresponding mechanism is not affected.

The cylinder body 1 comprises at least two suspended beam bodies 10, wherein each suspended beam body 10 is arranged at intervals along the axial direction, the suspended beam bodies 10 extend along the circumferential direction, and gaps are formed between adjacent suspended beam bodies 10. When the cylinder body 1 is a cylindrical cylinder, the suspended beam 10 may be arc segments, and at least two arc segments are arranged in the axial direction of the cylinder body 1 at intervals. In the application, the local positions of the adjacent suspended beam bodies 10 are fixedly connected, and the local connection positions can be one or two or more than two, so that the cylinder main body 1 can elastically deform along the axial direction under the action of axial force.

According to the axial extrusion force applied during use, the wall thickness of the selected material and the wall thickness of the cylinder main body 1 and the length of the suspended beam body 10 are comprehensively calculated, so that the cylinder main body 1 can generate enough axial extrusion force, the whole cylinder main body 1 is always in an elastic deformation area in the extrusion process, plastic deformation can not occur, the problems of plastic deformation and elastic attenuation in the disc spring technical scheme can not occur, and further the service life of the rotating shaft mechanism with the elastic piece is longer.

Compared with the use of disc springs to provide axial force, the elastic piece is the integrally formed cylinder main body 1, and the axial elastic deformation of the cylinder main body 1 can be realized by arranging the sequentially connected suspended beam bodies 10 on the cylinder main body 1, so that the suspended beam bodies 10 are integrally formed without assembly, can be installed on a mandrel at one time, and the assembly efficiency of a rotating shaft mechanism is improved.

The elastic piece can be of an equal-rigidity structure or a non-equal-rigidity structure. All gaps formed between adjacent suspended beam bodies in the elastic piece comprise a first gap and a second gap, namely, one part of the gaps formed between the adjacent suspended beam bodies 10 are the first gaps, the other part of the gaps formed between the adjacent suspended beam bodies 10 are the second gaps, when the cylinder main body is subjected to axial force, the first gaps are deformed firstly, and when the axial force is larger than a preset value, the second gaps are deformed again. In this example, the first gap and the second gap are configured to have different sizes or shapes, for example, the axial dimension and the circumferential dimension of the first gap may be greater than the axial dimension and the circumferential dimension of the second gap, so that the variable stiffness elastic member formed by deforming the first gap first and then deforming the second gap later can be realized, so as to adapt to the requirements of different structures.

The cylinder body 1 in the application comprises a first cylinder body 1-1 and a second cylinder body 1-2 which are positioned at two axial ends, each suspension beam 10 is positioned between the first cylinder body 1-1 and the second cylinder body 1-2, the first cylinder body 1-1 and the second cylinder body 1-2 are connected through each suspension beam 10 to form a whole, and the suspension beams 10 positioned at two axial ends of each suspension beam 10 can be fixedly connected with the corresponding cylinder body on the corresponding side. The first cylinder part 1-1 and the second cylinder part 1-2 have annular structures, and the width of the first cylinder part along the axial direction can be larger than that of the suspended beam body 10. The first cylinder body 1-1 and the second cylinder body 1-2 can be designed to be matched with and abutted against an external component, and the first cylinder body 1-1 and the second cylinder body 1-2 with annular structures are abutted against the external component, so that the overall stress of the cylinder body 1 can be optimized, and the cylinder body 1 can be uniformly compressed along the axial direction.

Referring to fig. 5 and 6, fig. 5 is a schematic structural view of an elastic member according to a first embodiment of the present application, and fig. 6 is an expanded view of the elastic member shown in fig. 5 after being separated along line L.

In the present application, the cartridge body 1 includes cantilever units, and the number of cantilever units may be one or two or more. The number of cantilever units depends on the specific use environment, so long as the use requirement is met. The cantilever unit comprises a first support column 11 and a second support column 12, wherein the first support column 11 and the second support column 12 are axially provided with a preset length, the first support column 11 is fixedly connected with the first cylinder body 1-1, the second support column 12 is fixedly connected with the second cylinder body 1-2, and opposite end parts of the first support column 11 and the second support column 12 are axially provided with a preset interval H in a non-compressed state; the first pillar 11 and the second pillar 12 may be substantially identical in shape and structure, but may be different. The first support 11 and the second support 12 are both provided with at least one suspended beam body 10, the suspended beam body 10 is a cantilever beam, one end of the suspended beam body 10 is fixedly connected with the first support 11 and the second support 12, and the non-fixed ends of the adjacent suspended beam bodies 10 are fixedly connected through a first connecting body. The suspended beams have simple structures, and are easy to elastically deform when axially compressed.

The first and second struts 11 and 12 include two sidewalls arranged in the circumferential direction, and only one sidewall of the first and second struts 11 and 12 may be provided with a cantilever beam, of course, the first and second struts 11 and 12 may be provided with cantilever beams on both sides, and specific examples in which the cantilever beams are provided on both sides of the first and second struts 11 and 12 are shown in fig. 5 to 8, and the cantilever beams are provided on both sides to facilitate uniform circumferential deformation of the cartridge body 1, thereby avoiding eccentricity.

In the first example, only one cantilever beam is provided on both side walls of the first and second support columns 11 and 12, and as will be understood with reference to fig. 5 and 6, the free ends of the cantilever beams on the same side are connected by a first connecting body, and the first connecting body may have various shapes, such as a straight section extending axially, or an arc-shaped section, where the diameter of the arc-shaped section may be greater than the interval between the axially adjacent cantilever beams 10, so as to facilitate elastic deformation between the adjacent cantilever beams. The adjacent suspended beam bodies 10 are simpler in structure through straight section connection.

Fig. 5 and 6 show examples in which the suspended beam 10 is an arc with equal width, the equal width structure is relatively simple, the processing technology is relatively simple, and the production cost is low, however, the suspended beam 10 may also be an arc with unequal width along the extending direction, as shown in fig. 7 and 8.

Referring to fig. 7 to 8, fig. 7 is a schematic structural view of an elastic member according to a first example of the present application, and fig. 8 is an expanded view of the elastic member shown in fig. 7 after being separated along line L.

In the second example, two or more suspended beam bodies 10 are provided on both side walls of both the first and second struts 11 and 12, and the number of cantilever units is two as shown in fig. 6, 7 and 8, and a specific example in which two suspended beam bodies 10 are provided on each side wall of the first and second struts 11 and 12, and the two cantilever units are symmetrical about the line S2. Of course, the number of suspended beam bodies 10 on each side wall of the first pillar 11 and the second pillar 12 is not limited to that shown in the drawings, and may be three or more. Similarly, the number of cantilever units is not limited to two, and may be three or more, and each cantilever unit is arranged at intervals along the circumferential direction, so that coaxial compression deformation of the barrel body 1 is facilitated, and the gaps 103 between adjacent cantilever units can be reasonably selected.

In the second example, the maximum axial distance between the suspended beam bodies 10 axially adjacent to the first support 11 and the second support 12 is the first interval H, the suspended beam body 10 at the inner end of the first support 11 and the suspended beam body 10 at the inner end of the second support 12 form a first gap, and in the unstressed state, the first gaps on both sides of the same support are communicated through the gap between the first support and the second support to form a first through hole 102; second gaps (second through holes 101 in fig. 7) are formed between the axially adjacent suspended beam bodies 10 on the first support columns 11 and between the axially adjacent suspended beam bodies 10 on the second support columns 12, and the maximum axial spacing H of the first gaps is larger than the maximum axial spacing H of the second gaps. The maximum distance between the second through holes 101 on the first support 11 and between the axially adjacent suspended beam bodies 10 is a second distance H, and the maximum distance between the axially adjacent suspended beam bodies 10 on the second support 12 is also a second distance H, wherein the first distance H is larger than the second distance H. In this way, when in axial compression, the space (the first through hole 102) surrounded by the first support 11, the second support 12 and the adjacent suspended beam bodies 10 is compressed and deformed first, and the second through hole 101 between the adjacent suspended beam bodies 10 on one support of the cylinder is deformed again, so that the rigidity changing requirement is realized. Wherein the maximum spacing of the second through hole 101 and the first through hole 102 may be located on the same axis S4. Of course, at least two rows of second through holes may be disposed along the axial direction, where the second through holes 101 in the same row are located in the same cross section, and the transverse center lines S1 of the second through holes 101 in the same row are collinear. The first through hole 102 may be a structure symmetrically disposed along the lateral center S of the cartridge body 1.

In the present application, the structures of the first pillar 11 and the second pillar 12 may be identical, the first pillar 11 and the second pillar 12 are disposed opposite to each other, the projections of the two pillars in the plane perpendicular to the axial direction completely coincide, and the suspended beam bodies 10 on the two side walls of the first pillar 11 and the second pillar 12 may be symmetrically disposed about the axial center plane S3 of the cantilever unit, where the position of the axial center plane is shown in fig. 6.

In the application, the suspended beam bodies 10 which are axially arranged are parallel and have the same size and shape, the intervals between the adjacent suspended beam bodies 10 on the same support column can be the same, and of course, the intervals between the adjacent suspended beam bodies 10 on the same support column can also be different, namely, the position with larger axial interval can be deformed firstly during axial compression, and the position with smaller axial interval can be deformed by compression after the axial interval is compressed, so as to realize the variable rigidity of the cylinder main body 1. Of course, the gaps formed between the adjacent cantilever beams may be equal width gaps, as illustrated in fig. 5, 6, 14 and 15, or non-equal width gaps, as illustrated in fig. 7 to 12 and 16.

Referring to fig. 9 to 12, fig. 9 is a schematic structural view of an elastic member according to a third example of the present application; FIG. 10 is a schematic view in the direction A of FIG. 9; FIG. 11 is a schematic view in the direction B of FIG. 9; fig. 12 is a schematic structural view of the elastic member in fig. 10 after being separated and unfolded along the line L.

In the third example, the number of cantilever units is at least two, the free ends of the cantilever beams extending in opposite directions in the two cantilever units are fixed to the same first connecting body, and as understood with reference to fig. 9 and 12, fig. 9 shows a specific example with two cantilever units, where the free ends of the cantilever beams on the adjacent side walls of the two first pillars 11 and the adjacent side walls of the two second pillars 12 are connected to the same first connecting body 13. The cylinder main body 1 of the structure has higher rigidity, higher axial stability in deformation, and the free ends of the cantilever beam bodies on the same side of the two cantilever units are connected with the same first connecting body 13, so that larger axial elastic force can be born.

In the application, the pillars and the first connecting bodies 13 which are axially adjacent to the suspended beam body 10 on the same pillar and are connected with the two ends of the suspended beam body enclose the second through hole 101, the largest dimension of the second through hole 101 along the circumferential direction is larger than the largest dimension of the second through hole 101 along the axial direction, and the structural cylinder main body 1 is easy to deform and has better axial stability during deformation. The edge position of the second through hole 101 extending in the circumferential direction may be provided as an arc or a rounded connection to reduce the stress concentration phenomenon when the position is deformed and to improve the service life of the cartridge body 1.

The shape of the second through hole 101 may have various forms, such as an oval, a circle, or an N-sided shape, and the N-sided shape may be a triangle, a quadrangle, or a pentagon, or a polygon having sides greater than five, and adjacent sidewalls of the polygons are connected by an arc. A specific example of the second through hole 101 is given below, and it should be understood by those skilled in the art that the shape of the second through hole 101 is not limited to the description herein, but may be other structures.

In the application, along the circumferential extension direction, each suspended beam body 10 comprises a first section 10a and a second section 10b which are connected, and the axial thickness of the connecting position of the first section 10a and the second section 10b is smaller when the first section and the second section are closer to each other, so that the second through holes 101 formed by the adjacent suspended beam bodies 10 can be prismatic, and the through holes with prismatic structures can meet the requirements of higher rigidity and higher elasticity, and the service life of the cylinder main body 1 is relatively longer.

Referring to fig. 13 to 17, fig. 13 is a schematic structural view of an elastic member according to a fourth example of the present application; FIG. 14 is a schematic view of the elastic member A shown in FIG. 13; FIG. 15 is a schematic view of the elastic member shown in FIG. 13 after being separated and stretched along line L; FIG. 16 is a schematic view showing the structure of an elastic member in a fifth example of the present application; fig. 17 is a schematic structural view of the elastic member shown in fig. 16 after being separated and unfolded along the line L.

In the fourth example, each suspended beam body 10 is a ring beam body, the number of ring beam bodies is at least one, and all ring beam bodies divide the space between the first cylinder body 1-1 and the second cylinder body 1-2 into N annular gaps, which are in turn: as shown in fig. 13, 14 and 15, the number of ring beams is 7, and the first cylinder 1-1 to the second cylinder 1-2 are divided into eight annular gaps, which are respectively: first annular gap 151, second annular gap 152, third annular gap 153, fourth annular gap 154, fifth annular gap 155, sixth annular gap 156, seventh annular gap 157, and eighth annular gap 158. Fig. 16 and 17 show that the number of ring beam bodies is 4, and the first cylindrical body 1-1 to the second cylindrical body 1-2 are divided into five annular gaps. The number of ring beam bodies is not limited to the above number, but may be other numbers.

In the application, at least two second connecting bodies 14 which are distributed at intervals are arranged in each annular gap, the first cylinder body 1-1 is connected with the adjacent annular beam bodies through the second connecting bodies 14 in the first annular gap, the second cylinder body 1-2 is connected with the annular beam bodies connected with the second cylinder body through the connecting bodies in the N-th annular gap, and the adjacent annular beam bodies are connected through the second connecting bodies between the two annular beam bodies. The number of the second connecting bodies 14 in the same annular gap may be two, three or more. As will be understood from fig. 13 and 15, a specific example in which two second connecting bodies 14 are provided in the same annular gap, the first annular gap 151 is divided into two first divided gaps 1511 by the two second connecting bodies 14, the second annular gap 152 is divided into two second divided gaps 1521, the third annular gap 153 is divided into two third divided gaps 1531, the fourth annular gap 154 is divided into two fourth divided gaps 1541, the fifth annular gap 155 is divided into two fifth divided gaps 1551, the sixth annular gap 156 is divided into two sixth divided gaps 1561, the seventh annular gap 157 is divided into seventh divided gaps 1571, and the eighth annular gap 158 is divided into two eighth divided gaps 1581.

Each partial gap can be of equal width, and of course, the partial gaps can be of unequal width, namely, the same partial gap can be of the same shape and size, or different. The gaps in the different layers may be the same or different in shape and size. Fig. 13 to 15 show specific examples of the equal axial widths of the respective partial gaps, and fig. 16 and 17 show specific examples of the unequal axial widths of the same partial gap, in which the partial gaps are formed in a waist-shaped structure having both ends thereof being wide and the middle thereof being narrow, as viewed from the figures.

In the application, the second connectors in each annular gap are circumferentially and uniformly arranged, the second connectors 14 in the adjacent annular gaps are staggered, and the projections of the second connectors 14 in the adjacent annular gaps in a plane perpendicular to the axial direction are at least partially misaligned; schematic views of two second connection bodies uniformly arranged in the circumferential direction in the same annular gap are shown in fig. 13 to 17.

The annular beam body is of an integral structure, and has better synchronous deformation capability and better stability when being stressed axially.

The included angle between the central axial surfaces of the two second connectors in the former annular gap and the central axial surfaces of the two second connectors in the latter annular gap is 80-100 degrees, and the specific example that the included angle between the central axial surfaces of the second connectors of two adjacent layers is 90 degrees is shown in the figure.

The rotating shaft mechanism and the electronic equipment have the elastic piece, so the technical effect of the elastic piece is achieved.

The electronic device in this application includes the rotating shaft structure of the above embodiment, so the above technical effects of the rotating shaft structure are also achieved.

The principles and embodiments of the present application have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present application and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.

Claims

1. The utility model provides an elastic component, its characterized in that includes the integrated into one piece's that has the center through-hole section of thick bamboo main part, the section of thick bamboo main part includes two at least unsettled roof beam bodies, each unsettled roof beam body is along axial interval arrangement to each unsettled roof beam body extends along circumference, adjacent unsettled roof beam body's local position is fixed to link to each other, so that under axial force effect, the section of thick bamboo main part can take place elastic deformation along the axial.

2. The spring of claim 1, wherein all gaps formed between adjacent ones of said suspended beams include a first gap that deforms first when said cartridge body is subjected to an axial force and a second gap that deforms when said axial force is greater than a predetermined value.

3. The elastic member according to claim 1 or 2, wherein the cylinder body includes a first cylinder portion and a second cylinder portion at both axial ends, both of which are annular structures, each of the suspended beam portions being located between the first cylinder portion and the second cylinder portion, the first cylinder portion and the second cylinder portion being integrally connected by each of the suspended beam portions, the suspended beam portions at both axial ends of each of the suspended beam portions being capable of being fixedly connected to the cylinder portions on the respective sides.

4. A spring as claimed in claim 3, comprising at least one cantilever unit, said cantilever unit comprising a first leg and a second leg, both having a predetermined length in an axial direction, said first leg fixedly connected to said first barrel portion, said second leg fixedly connected to said second barrel portion, said first leg and said second leg having a predetermined spacing in an axial direction at opposite ends in an uncompressed state; the first support and the second support are both provided with at least one suspended beam body, the suspended beam body is a cantilever beam, one end of the suspended beam body is fixedly connected with the first support and the second support, and the non-fixed ends of the adjacent suspended beam bodies are fixedly connected through a first connecting body.

5. The spring of claim 4, wherein the first and second struts include two sidewalls arranged in a circumferential direction, the free ends of all of the suspended beams on the same side of the first and second struts being connected to the same first connector, the first connector being suspended between the first and second barrel portions.

6. The spring of claim 4 or 5, wherein two side walls of each of the first and second struts are provided with one suspended beam, and free ends of the suspended beams on the same side are connected by an arc section or a straight section.

7. The elastic member according to claim 4 or 5, wherein two side walls of both the first pillar and the second pillar arranged in the circumferential direction are each provided with two or more of the suspended beam bodies, and when the number of the suspended beam bodies on the side wall of the first pillar or the second pillar is greater than two, the pitches between adjacent suspended beam bodies are equal or unequal.

8. The elastic member according to any one of claims 4 to 7, wherein both of the suspended beam body at the inner end portion of the first pillar and the suspended beam body at the inner end portion of the second pillar form the first gap, and the first gaps located on both sides of the same pillar are communicated through the gap between the first pillar and the second pillar in an unstressed state; the first support column is axially adjacent to the suspended beam body, the second support column is axially adjacent to the suspended beam body to form a second gap, and the maximum axial distance of the first gap is larger than that of the second gap.

9. The elastic member according to claim 8, wherein the first pillar, the second pillar, the suspended beam body located at the inner end of the first pillar, and the suspended beam body located at the inner end of the second pillar enclose a first through hole, the pillars axially adjacent to the suspended beam body and connected to the two ends of the suspended beam body on the same pillar and the first connector enclose a second through hole, and an axial maximum dimension and a circumferential maximum dimension of the first through hole are respectively greater than an axial maximum dimension and a circumferential maximum dimension of the second through hole, the first through hole includes the first gap, and the second through hole is the second gap.

10. A spring as claimed in any one of claims 1 to 9, wherein each of said suspended beams has an equal or unequal axial width about its extension to form an equal or unequal gap between adjacent ones of said suspended beams.

11. The spring of claim 10, wherein each of the suspended beams includes a first section and a second section connected to each other, the first section and the second section being axially thinner closer to the connection location of the two sections to enable prismatic gaps to be formed between adjacent ones of the suspended beams.

12. The elastic member according to any one of claims 4 to 11, wherein the number of the cantilever units is at least two, and each of the cantilever units is uniformly arranged in a circumferential direction.

13. The spring of claim 12, wherein the free ends of each of the cantilever beams extending in opposite directions in adjacent ones of the cantilever units are fixed to the same first connector.

14. A spring as claimed in any one of claims 3 to 13, wherein the projections of the first and second struts in a plane perpendicular to the axial direction are fully coincident, and the suspended beam bodies on either side of the first and second struts are symmetrically disposed about the axial centre plane of the cantilever unit.

15. The elastic member according to claim 2, wherein each of the suspended beam bodies is a ring beam body, the number of the ring beam bodies is at least one, all the ring beam bodies divide the space between the first cylinder portion and the second cylinder portion into N annular gaps, which are in turn: the annular gap comprises a first annular gap body, a second annular gap body, an annular beam body, a first cylinder body and a second cylinder body, wherein at least two second connecting bodies are arranged in each annular gap body at intervals, the first cylinder body is connected with the adjacent annular beam body through the second connecting bodies in the first annular gap body, the second cylinder body is connected with the annular beam body connected with the second cylinder body through the connecting bodies in the N annular gap body, and the adjacent annular beam bodies are connected through the second connecting bodies between the second annular gap body and the second annular gap body.

16. The spring of claim 15, wherein each of the second connectors in each annular gap is circumferentially uniformly arranged and the second connectors inside adjacent annular gaps are staggered, the projections of the second connectors of adjacent annular gaps in a plane perpendicular to the axial direction being at least partially misaligned;

or/and each split gap formed by splitting the same annular gap by the second connecting body is equal-width gap or unequal-width gap.

17. The spring of claim 16, wherein each annular gap has two of said second connectors, and the central axes of the two of said second connectors in the former annular gap are at an angle of 80 ° to 100 ° from the central axes of the two of said second connectors in the latter annular gap.

18. An elastic member according to any one of claims 1 to 17, wherein the cartridge body is a cylindrical cartridge.

19. A rotary shaft structure for realizing the relative rotation of a first component and a second component, which is characterized in that the rotary shaft structure comprises a mandrel for fixing the first component and a rotating member for fixing the second component, wherein the rotating member is rotationally connected with the mandrel, the rotary shaft structure further comprises a concave-convex assembly and an elastic member according to any one of claims 1 to 18, the sleeve is sleeved on the mandrel, and when the mandrel and the rotating member relatively rotate, the concave-convex assembly can compress the elastic member to generate axial deformation so as to enable the included angle between the first component and the second component to be set.

20. An electronic device comprising a first component, a second component, and the spindle structure of any one of claims 1-19, the first component and the second component being rotatably coupled by the spindle structure.