CN112727909A

CN112727909A - Rotating shaft assembly and electronic equipment

Info

Publication number: CN112727909A
Application number: CN202110062664.0A
Authority: CN
Inventors: 叶宇峰
Original assignee: Wingtech Communication Co Ltd
Current assignee: Wingtech Communication Co Ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-04-30

Abstract

The invention discloses a rotating shaft assembly and electronic equipment, wherein the rotating shaft assembly comprises a first packaging piece, a second packaging piece, a plurality of rotating blocks and an FPC (flexible printed circuit); the first packaging piece and the second packaging piece are oppositely arranged and are respectively positioned at two sides of the width direction of the rotating shaft assembly, the plurality of rotating blocks are positioned between the first packaging piece and the second packaging piece and are arranged along the width direction of the rotating shaft assembly, the extending direction of each rotating block is consistent with the length direction of the rotating shaft assembly, and a gap is formed between every two adjacent rotating blocks; the FPC is arranged on the inner sides of the rotating blocks, and two ends of the FPC penetrate out of the rotating shaft assembly through the first packaging piece and the second packaging piece respectively; a shielding piece is further arranged in the rotating shaft assembly and is arranged between the FPC and the plurality of rotating blocks. The invention separates the FPC from the rotating block by the shielding piece, thereby playing a better protection role on the FPC; meanwhile, when the FPC is assembled, the shielding piece is utilized to guide the FPC, and the assembling efficiency is improved.

Description

Rotating shaft assembly and electronic equipment

Technical Field

The invention relates to the technical field of electronics, in particular to a rotating shaft assembly and electronic equipment.

Background

With the continuous development of the flexible screen technology, some electronic devices with foldable screens are in mass production, for example, foldable flexible screen mobile phones, which generally include a left housing and a right housing, wherein the left housing and the right housing are connected together by a rotating shaft assembly, the flexible screen covers the left housing and the right housing, and when in use, the left housing and the right housing are relatively rotated by the rotating shaft assembly to fold the left housing and the right housing, because the flexible screen needs to be adapted and interference of components inside the mobile phone is avoided when the mobile phone is folded, the structure of the rotating shaft assembly is relatively complex, which generally includes a plurality of side-by-side movable blocks, a gap is formed between adjacent movable blocks to ensure that the left housing and the right housing can rotate within a range of 180 degrees, and after folding, the left housing and the right housing can be smoothly attached, and meanwhile, in order to ensure normal use of the mobile phone, an FPC needs to be inserted into the rotating shaft assembly, in order to with left casing, the inside relevant electron device signal intercommunication of right side casing, because FPC is located the inside part of pivot subassembly and needs the expansion and the buckling of adaptation pivot subassembly, therefore, when the equipment, FPC needs big enough at the inside size of reserving of pivot subassembly, in order to avoid the pivot subassembly to break FPC when buckling, the FPC that this just made forms great redundancy at the pivot subassembly is inside, when the pivot subassembly rotates, FPC very easily blocks in the clearance between the inside turning block of pivot subassembly, lead to FPC fracture, thereby the complete machine function that makes receives the influence. In addition, when assembling, because pivot subassembly inner structure unevenness leads to the FPC equipment degree of difficulty great, when penetrating FPC, can be blocked by pivot subassembly is inside, and the packaging efficiency is lower.

Disclosure of Invention

The invention aims to provide a rotating shaft assembly which can prevent an FPC (flexible printed circuit) from being clamped into a gap inside the rotating shaft assembly and meanwhile facilitates the assembly of the FPC.

The second purpose of the invention is to provide an electronic device.

In order to achieve the first purpose, the invention adopts the following technical scheme:

the rotating shaft assembly is characterized by comprising a first packaging piece, a second packaging piece, a plurality of rotating blocks and an FPC;

the first packaging piece and the second packaging piece are oppositely arranged and are respectively positioned at two sides of the width direction of the rotating shaft assembly, the plurality of rotating blocks are positioned between the first packaging piece and the second packaging piece and are arranged along the width direction of the rotating shaft assembly, the extending direction of each rotating block is consistent with the length direction of the rotating shaft assembly, and a gap is formed between every two adjacent rotating blocks;

the FPC is arranged on the inner sides of the plurality of rotating blocks, and two ends of the FPC respectively penetrate out of the rotating shaft assembly through the first packaging piece and the second packaging piece;

a shielding piece is further arranged in the rotating shaft assembly and arranged between the FPC and the plurality of rotating blocks.

Preferably, the shield is a steel sheet.

Preferably, the one end of steel sheet is the stiff end, and the other end is the free end, stiff end fixed connection be in on the first packaging part, the free end stretches into the second packaging part.

Preferably, at least two ends of one of the rotating blocks are respectively provided with a limiting part, and the PFC and the shielding member are limited between the limiting parts at the two ends of the rotating block.

Preferably, the limiting portion is a projection extending from an end of the rotating block toward the shielding member.

Preferably, a guide groove is formed in one side surface of the protruding block, which faces the middle of the rotating block, and edges of two sides of the FPC and the shielding piece are respectively embedded in the guide grooves formed in the protruding block at two ends of the rotating block.

Preferably, the rotating shaft assembly comprises five rotating blocks, and two ends of the rotating block at the middle are respectively provided with a lug.

Preferably, the FPC further comprises a cover plate positioned on one side of the FPC away from the plurality of rotating blocks.

Preferably, the cover plate comprises a middle cover plate and two side cover plates respectively positioned at two sides of the middle cover plate, and the two side cover plates are in pivot fit with the middle cover plate.

In order to achieve the second purpose, the invention adopts the following technical scheme:

electronic equipment comprises the rotating shaft assembly.

According to the technical scheme, the clearance between the FPC and the rotating blocks is separated by the shielding piece, so that the flexible FPC is prevented from being clamped into the clearance between the rotating blocks when the rotating shaft assembly rotates, and the FPC is protected well; meanwhile, when the FPC assembling machine is assembled, the shielding piece is arranged in the rotating shaft assembly, the surface of the shielding piece is smooth, when the FPC penetrates into the rotating shaft assembly, the FPC can stretch into the rotating shaft assembly along the surface of the shielding piece, therefore, when the FPC is assembled, the shielding piece is used for guiding the FPC, and the assembling efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention and shows a state of use of the present invention;

FIG. 2 is a schematic view of another state of use of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 1;

fig. 4 is an enlarged view at B in fig. 3.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				101	First package	115	Turning block
102	Second package	121	FPC
				111	Turning block	13	Steel sheet
112	Turning block	131	Fixed end
				113	Turning block	132	Free end
1131	Bump	141	Middle cover plate
				1132	Guide groove	142	Side cover plate
114	Turning block

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are 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 defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1, 2, 3, and 4, a hinge assembly according to the present invention, especially a hinge assembly of a folding screen mobile phone, includes a first package 101, a second package 102, a plurality of turning blocks and an FPC121, wherein the first package 101 and the second package 102 are respectively located at two sides of the hinge assembly in a width direction, and are oppositely disposed, the plurality of turning blocks are located between the first package 101 and the second package 102, the plurality of turning blocks are specifically a turning block 111, a turning block 112, a turning block 113, a turning block 114 and a turning block 115, which are arranged side by side (i.e. arranged along the width direction of the hinge assembly) in the first package 101 and the second package 102, and the turning block 111, the turning block 112, the turning block 113, the turning block 114 and the turning block 115 are all in a strip shape, and their extending directions are all consistent with a length direction of the hinge assembly, and a gap is formed between two adjacent turning blocks, the rotating blocks can move independently when the mobile phone is folded, and interference between the rotating blocks is avoided. The FPC121 is placed inside the plurality of turning blocks, which is connected to the electronic devices inside the left and right housings of the cellular phone, which actually passes through the rotation shaft assembly, that is, the main body portion of the FPC121 is placed inside the rotation shaft assembly and inside the plurality of turning blocks, and both ends thereof respectively pass through the first and

second packages

101 and 102 to the outside of the rotation shaft assembly to be connected to the left and right housings of the cellular phone; a steel sheet 13 is further arranged inside the rotating shaft assembly, the steel sheet 13 is located between the FPC121 and the plurality of rotating blocks, the FPC121 is shielded on the inner sides of the plurality of rotating blocks by the steel sheet 13, and then gaps between the FPC121 and the adjacent rotating blocks are separated.

The thickness of the steel sheet 13 is approximately 0.05-0.1mm, and the steel sheet can be used as a shielding piece to separate the gap between the FPC and the adjacent rotating block along with the bending of the rotating shaft assembly when the rotating shaft assembly is bent, so that the FPC is prevented from being clamped into the gap between the rotating blocks, and the better protection effect is achieved on the FPC; meanwhile, when the FPC is assembled, the steel sheet is arranged inside the rotating shaft assembly, the surface of the steel sheet is smooth, when the FPC penetrates into the rotating shaft assembly, the FPC can stretch into the rotating shaft assembly along the surface of the steel sheet, and therefore when the FPC is assembled, the steel sheet is used for guiding the FPC, and the assembling efficiency is improved.

In other embodiments of the present invention, the steel sheet 13 may be replaced by other parts, such as sheet-shaped plastic parts with high surface hardness and meeting the bending requirement, as the shielding member for protecting the FPC 121.

In a preferred embodiment, the steel sheet 13 of the present invention has one end being a fixed end 131 and the other end being a free end 132, wherein the fixed end 131 is fixedly connected to the first package 101, the free end 132 extends into the second package 102, as shown in fig. 2, the rotating shaft assembly is in an unfolded state, the steel sheet 13 is in an unfolded state along with the rotating shaft assembly, and the free end of the steel sheet 13 inside the second package 102 has a relatively large size, as shown in fig. 1, the rotating shaft assembly is in a bent state, because the fixed end 131 of the steel sheet 13 is connected to the first package 101, the steel sheet 13 is bent into a U-shape along with the rotating shaft assembly to separate the rotating block and the FPC, and the free end thereof will move relative to the second package 102, and the fixed end 131 may be fixed to the first package 101 by electric welding or adhesion.

In another preferred embodiment, the two ends of at least one rotating block are respectively provided with a limiting part, and the FPC121 and the steel sheet 13 are limited between the limiting parts at the two ends of the rotating block after penetrating into the rotating shaft assembly, so as to prevent the FPC121 and the steel sheet 13 from moving towards the direction far away from the rotating block along the thickness direction of the rotating shaft assembly, thereby guiding the steel sheet 13. Specifically, as shown in fig. 3 and 4, two end portions of the rotation block 113 located at the middle most are respectively provided with a protrusion 1131 extending inward (i.e., extending toward the steel sheet 13), the steel sheet 13 can penetrate between the two protrusions 1131, and the two protrusions 1131 are used for limiting, so that the steel sheet 13 is prevented from deflecting when being bent along with the rotation shaft assembly; meanwhile, a guide groove 1132 is arranged on one side surface of the lug 1131 facing the middle part of the rotating block 131, and edges of two sides of the FPC121 and the steel sheet 13 are respectively embedded in the guide grooves 1132 on the two lugs 1131, so that the side walls of the guide grooves 1132 limit the FPC121 and the steel sheet 13 to prevent the steel sheet 13 from moving towards the direction far away from the rotating block 131 along the thickness direction of the rotating shaft assembly, and therefore the steel sheet 13 is always attached to the rotating block 131. In this preferred embodiment, the protrusions 1131 and the guide grooves 1132 may be provided on all of the above-mentioned

rotary blocks

111, 112, 113, 114, and 115, or the protrusions 1131 and the guide grooves 1132 may be selectively provided on a part of the rotary blocks according to the size of the steel sheet 13.

The rotating shaft assembly also comprises a cover plate, wherein the cover plate is positioned on one side of the FPC121 far away from the plurality of rotating blocks, and the cover plate can be regarded as an appearance piece of the rotating shaft assembly and is used for covering the FPC121 in the rotating shaft assembly; specifically, in order to use the bending and unfolding of the rotary shaft assembly, the cover plate includes a middle cover plate 141, and two side cover plates 142, the two side cover plates 142 are respectively located at both sides of the middle cover plate 141, and the side cover plates 142 are pivotally engaged with the middle cover plate 141.

It should be noted that the rotating shaft assembly of the present invention includes five rotating blocks arranged side by side, and actually, in other embodiments, the number of the rotating blocks may be set as required, which can meet the bending requirement of the mobile phone anyway.

The electronic equipment comprises the rotating shaft assembly, and not only is a mobile phone, but also can be a tablet personal computer, a notebook computer, intelligent wearable equipment and the like.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The rotating shaft assembly is characterized by comprising a first packaging piece, a second packaging piece, a plurality of rotating blocks and an FPC;

2. The spindle assembly of claim 1, wherein the shield is a steel plate.

3. The pivot assembly of claim 2 wherein the steel plate has a fixed end at one end and a free end at the other end, the fixed end being fixedly attached to the first enclosure and the free end extending into the second enclosure.

4. The rotary shaft assembly according to claim 1, wherein at least one of the rotary blocks has a limiting portion at each of its two ends, and the PFC and the shielding member are defined between the limiting portions at the two ends of the rotary block.

5. The rotary shaft assembly as claimed in claim 4, wherein the limiting portion is a projection extending from an end of the rotary block toward the shutter.

6. The rotating shaft assembly as claimed in claim 5, wherein a guide groove is provided on a side surface of the protrusion facing the middle portion of the rotating block, and both side edges of the FPC and the shielding member are respectively embedded in the guide grooves provided on the protrusions at both ends of the rotating block.

7. The rotary shaft assembly of claim 6, wherein the rotary shaft assembly comprises five rotary blocks, and the two ends of the rotary block at the middle are respectively provided with a lug.

8. The spindle assembly of claim 1, further comprising a cover plate on a side of the FPC remote from the plurality of turning blocks.

9. The pivot assembly of claim 8 wherein the cover plate includes a center cover plate and two side cover plates on opposite sides of the center cover plate, the side cover plates each pivotally engaging the center cover plate.

10. Electronic device, characterized in that it comprises a hinge assembly according to claims 1-9.