CN220748792U - Variable torque rotating shaft mechanism in small-size space - Google Patents
Variable torque rotating shaft mechanism in small-size space Download PDFInfo
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- CN220748792U CN220748792U CN202320878780.4U CN202320878780U CN220748792U CN 220748792 U CN220748792 U CN 220748792U CN 202320878780 U CN202320878780 U CN 202320878780U CN 220748792 U CN220748792 U CN 220748792U
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- 230000008878 coupling Effects 0.000 description 1
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Abstract
The utility model provides a torque-variable rotating shaft mechanism in a small-size space, wherein a stopping part is arranged on a rotating shaft, and a rolling circle and an axial stopping matching frame which is sleeved on the rotating shaft and is in clearance fit with the rotating shaft are arranged on a connecting frame; the rotating shaft is also sleeved with a first friction part which rotates synchronously with the rotating shaft, a second friction part which can rotate relative to the rotating shaft and a plurality of disc springs, the disc springs tightly push the first friction part to be in friction fit with the second friction part, and the axial stop matching frame of the connecting frame is positively pushed in front of the first stop part; the friction fit of the first friction part and the second friction part provides the basic resistance torque of the rotating shaft, and the fit of the rolling circle and the rotating shaft outputs the second resistance torque overlapped on the basic torque in the working angle range of the corresponding mobile terminal. The utility model can be applied to mobile terminals such as notebook computers, and the like, can reduce the jitter time during touch operation under the limitation of small-size requirements, and can also ensure the service life.
Description
Technical Field
The present utility model relates to a hinge for a mobile terminal such as a notebook computer, a mobile phone, etc., and more particularly, to a hinge which is applied to an occasion where a space allowed in a thickness direction is small and which is required to realize a multi-stage torque output.
Background
The hinge applied to the notebook computer comprises a shaft and a connecting frame connected with the shaft in a rotating way. For torque output, one implementation is to rotationally connect the shaft and a wrap on the coupling, the wrap wrapping around the shaft and outputting the resistive torque when rotated. There are also hinges that use a combination of end cams and friction plates to output a resistive torque.
Some notebook products require a segmented torque output from the hinge, and have low resistance from closed to open and high resistance torque when the screen is rotated to a use angle range. At present, for a hinge with segmented torque output, two rolling circles with different clamping angle ranges are adopted, so that segmented torque output can be realized, however, when in touch operation, a screen can shake for a long time to restore calm, and the hinge with small size space is especially used in a large-angle (120 DEG) use state. In another implementation manner, the above-mentioned combination manner of the end cam and the friction plate is adopted, and concentric double-layer cams are needed to realize segmented torque output, however, for hinges with small-size space, the size of the rotating shaft is very small, for example, the whole is as low as 3.5mm, at this time, the radial size of the end cam is very small, and two layers of cams are needed to be arranged, so that the strength of the cam part is greatly reduced, and the service life is not satisfactory.
Disclosure of Invention
The utility model aims to provide a torque-variable rotating shaft mechanism in a small-size space, which can be applied to mobile terminals such as notebook computers and the like, can reduce shaking time during touch operation under the limitation of small-size requirements, and can also ensure the service life. For this purpose, the utility model adopts the following technical scheme:
the torque-variable rotating shaft mechanism in small-size space comprises a rotating shaft and a connecting frame and is characterized in that a first stop part is arranged on the rotating shaft, and a rolling circle and an axial stop matching frame which is sleeved on the rotating shaft and is in clearance fit with the rotating shaft are arranged on the connecting frame; the rotating shaft is also sleeved with a first friction part which rotates synchronously with the rotating shaft, a second friction part which can rotate relative to the rotating shaft and a plurality of disc springs, the disc springs tightly push the first friction part to be in friction fit with the second friction part, and the axial stop matching frame of the connecting frame is positively pushed in front of the first stop part;
the friction fit of the first friction part and the second friction part provides the basic resistance torque of the rotating shaft, and the fit of the rolling circle and the rotating shaft outputs the second resistance torque overlapped on the basic torque in the working angle range of the corresponding mobile terminal.
On the basis of adopting the technical scheme, the utility model can also adopt or combine to adopt the following further technical scheme:
the connecting frame comprises brackets on two sides and the coiled circle positioned between the brackets on two sides, the brackets are provided with holes for the rotating shaft to pass through, the bracket on one side is used as the axial stop matching frame, the bracket on the other side is also in clearance fit with the rotating shaft, and the first friction part, the second friction part and the disc spring are positioned on the rotating shaft outside the bracket on the other side.
The basic resistance torque is constant torque output in the whole rotation stroke range of the hinge.
The first stopping part is close to the first end of the rotating shaft, and a connecting end part of the rotating shaft is arranged at the first end; the second end of the rotating shaft is provided with external threads and is connected with a lock nut.
The first stopping part is close to the first end of the rotating shaft, and a connecting end part of the rotating shaft is arranged at the first end; the second section of the rotating shaft is provided with external threads and is connected with a lock nut; the first friction part and the second friction part and the disc spring are positioned between the nut and the bracket on the other side.
The second friction part comprises a friction part with a first connecting structure and a friction part with a second connecting structure, the first connecting structure is a pin positioned on two sides, the second connecting structure is a hole spliced with the pin on one side, and the connecting frame is provided with a hole spliced with the pin on the other side.
An annular step is arranged on the rotating shaft and serves as the first stopping position.
Within the working angle range, the sum of the basic resistance and the second resistance torque can meet the requirement of resisting the impact of touch operation and keeping the current opening angle positioned.
The outer diameters of the first friction part and the second friction part and the outer diameter of the rolled circle are smaller than or equal to 3.8mm.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
(1) The mechanism is a single-shaft Hinge with the functions of friction rolling, friction plate and disc spring, and the whole working angle is as large as 180 degrees or more.
(2) The design has 2 structural modules, which are friction torque, but the force value generation principle is different. The rotary shaft size can be reduced to 3.5mm of the hinge diameter through friction rolling, sectional variable torque can be still realized under a small space, shaking is improved, the disc spring provides positive pressure of the friction plate, and simultaneously, axial compression force is applied to the friction rolling structure to act between a friction shaft and a shaft sleeve and a bracket, so that the damping and vibration reducing effects are achieved, the problem of serious shaking of the small-size rolling structure is effectively solved, and the problem of structural strength reduction caused by a double-layer cam is avoided. The hinge structure can be applied to hinge structures of mobile terminals such as notebook computers, flexible screen mobile phones and the like.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Fig. 2 is an exploded view of the structure of the embodiment shown in fig. 1.
Fig. 3 and 4 are cross-sectional views A-A and B-B of fig. 1, respectively.
Fig. 5 is a torque output schematic diagram of an embodiment of the present utility model, wherein the abscissa is the angle of hinge opening and the ordinate is the torque value output.
Detailed Description
Reference is made to the accompanying drawings. The utility model provides a torque-variable rotating shaft mechanism in a small-size space, which comprises a rotating shaft 1 and a connecting frame 2, wherein an annular step is arranged on the rotating shaft 1 and used as a first stop part 11, a rolling circle 20 and an axial stop matching frame 21 which is sleeved on the rotating shaft 1 and is in clearance fit with the rotating shaft are arranged on the connecting frame 2, and the shaft and the connecting frame can rotate relatively. The rotating shaft 1 is also sleeved with a first friction part 31 which rotates synchronously with the rotating shaft 1, a second friction part 32 which can rotate relative to the rotating shaft 1 and a plurality of disc springs 4, the disc springs 4 tightly press the friction fit between the first friction part 31 and the second friction part 32, and the axial stop fit frame 21 of the connecting frame 2 tightly presses the front of the first stop position, and intermediate parts which rotate synchronously with the rotating shaft can be directly pressed against the first friction part 31 or between the two friction parts, and can support the first stop position 11 and tightly press the disc springs 4 positively.
The friction fit of the first friction member 31 and the second friction member 32 provides a basic resistance torque T1 of the rotating shaft, which can meet the requirement of easy opening but a certain feel. The cooperation of the rolling circle 20 and the rotating shaft 1 outputs a second resistance torque T2 overlapped on the basic torque T1 in the working angle range of the corresponding mobile terminal, and the basic resistance torque T1 can be constant torque output in the whole rotation stroke range of the hinge. The rolling circle 20 is a sleeve with a circumferential elasticity and a through seam in the axial direction, the portion of the rotating shaft matched with the rolling circle 20 can be in a non-circular shape or the inner wall of the rolling circle is made into a certain curved surface shape (a profile surface with a variable diameter), the rotating shaft 1 is tightly wrapped only in a specific range corresponding to a working angle to provide a second resistance torque, the working angle can be a certain angle range (110-180 degrees in the embodiment) that the screen is rotated and opened to more than 90 degrees, and a user can normally watch the screen and the touch control operation screen in the angle direction. In this way, in the angle range, the total resistance torque of T1+T2 can meet the requirement of resisting the impact of the touch operation to keep positioning the current opening angle, and the screen shaking time after the touch operation can be greatly shortened under the support of the axial tightening force.
In this embodiment, the connecting frame includes two side brackets and the rolling circle 20 located between the two side brackets, the brackets are provided with holes for the spindle 1 to pass through, wherein one side bracket is used as the axial stop matching frame 21, the other side bracket 22 is also in clearance fit with the spindle 1, and the first friction component 31, the second friction component 32 and the disc spring 4 are located on the spindle 1 outside the other side bracket 22.
The utility model can change the friction rolling curved surface and the disc spring force value to adjust the torque curve so as to achieve proper application hand feeling. The number of the friction plates 4 can be adjusted according to the requirement for the basic torque T1, and when the connecting frame 2 is assembled, the connecting frame 2 can be abutted against the first stop part 11 by utilizing the characteristic that the fit of the rolling circle 20 and the rotating shaft 1 outputs the second resistance torque T2 in the working angle range of the corresponding mobile terminal, namely, no friction force or extremely low friction force is generated in the non-working angle range.
The first stopping part 11 is close to the first end of the rotating shaft 1, and a connecting end part 10 of the rotating shaft 1 is arranged at the first end; the second end of the rotating shaft 1 is provided with external threads and a lock nut 5 is connected. The first and second friction members 31, 32 and the disc spring 4 are located between the nut 5 and the bracket 22 on the other side. The utility model is used for rotating equipment such as notebook computers and the like, and the connecting end part 10 is fixedly connected with the screen end through a flower tooth structure; the connecting frame 2 is fixedly connected with the system end through screws.
The second friction member 32 includes a friction member with a first connection structure and a friction member with a second connection structure, the first connection structure is a pin located at two sides, the second connection structure is a hole inserted into the pin 321 at one side, and the connection frame 2 is provided with a hole inserted into the pin 322 at the other side. Thus, the second friction members 32 are connected together and to the connecting frame 2 by the pin-to-hole connection, and can be made into an assembled whole at the time of production. The first friction member 31 may be connected to the rotating shaft 1 by flat fit.
Under the trend of increasingly lighter and thinner notebook computers, the space of the rotating shaft is compressed, and the scheme of the utility model effectively solves the contradiction points that the space is small and the user experience is good. In this embodiment, the outer diameters of the first friction member 31 and the second friction member 32 and the outer diameter of the rolled circle 20 are all 3.8mm or less, for example, only 3.5mm.
The above embodiments are merely examples of the present utility model, but the present utility model is not limited thereto, and any changes or modifications made by those skilled in the art are included in the scope of the present utility model.
It is noted that the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the foregoing drawings are intended to cover non-exclusive inclusions. The terms "mounted," "configured," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present utility model, it should be understood that the terms "one end," "another end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," "right," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. The terms "first," "second," and the like, are also used for simplicity of description only and are not indicative or implying relative importance.
Claims (9)
1. The torque-variable rotating shaft mechanism in small-size space comprises a rotating shaft and a connecting frame and is characterized in that a first stop part is arranged on the rotating shaft, and a rolling circle and an axial stop matching frame which is sleeved on the rotating shaft and is in clearance fit with the rotating shaft are arranged on the connecting frame; the rotating shaft is also sleeved with a first friction part which rotates synchronously with the rotating shaft, a second friction part which can rotate relative to the rotating shaft and a plurality of disc springs, the disc springs tightly push the first friction part to be in friction fit with the second friction part, and the axial stop matching frame of the connecting frame is positively pushed in front of the first stop part;
the friction fit of the first friction part and the second friction part provides the basic resistance torque of the rotating shaft, and the fit of the rolling circle and the rotating shaft outputs the second resistance torque overlapped on the basic resistance torque in the working angle range of the corresponding mobile terminal.
2. The variable torque rotary shaft mechanism under small-sized space according to claim 1, wherein the connecting frame comprises brackets on both sides and the rolling circle between the brackets on both sides, the brackets are provided with holes for the rotary shaft to pass through, wherein the brackets on one side are used as the axial stop matching frame, the brackets on the other side are also in clearance fit with the rotary shaft, and the first friction part, the second friction part and the disc spring are arranged on the rotary shaft outside the brackets on the other side.
3. The variable torque rotary mechanism of claim 1, wherein the base resistance torque is a constant torque output over the entire range of rotational travel of the hinge.
4. The variable torque rotary shaft mechanism under small-sized space according to claim 1, wherein the first stopper portion is adjacent to the first end of the rotary shaft and is provided with a connecting end portion of the rotary shaft at the first end; the second end of the rotating shaft is provided with external threads and is connected with a lock nut.
5. The variable torque rotary shaft mechanism under small-sized space according to claim 2, wherein the first stopper portion is adjacent to the first end of the rotary shaft and is provided with a connecting end portion of the rotary shaft at the first end; the second section of the rotating shaft is provided with external threads and is connected with a lock nut; the first friction part and the second friction part and the disc spring are positioned between the nut and the bracket on the other side.
6. The torque-variable mechanism according to claim 2, wherein the second friction member includes a friction member having a first connecting structure and a friction member having a second connecting structure, the first connecting structure is a pin on both sides, the second connecting structure is a hole inserted into the pin on one side, and the connecting frame is provided with a hole inserted into the pin on the other side.
7. The small-sized space variable torque rotating shaft mechanism according to claim 1, wherein an annular step is provided on the rotating shaft as the first stopper portion.
8. The variable torque rotary mechanism for small-sized space according to claim 1, wherein the sum of the base resistance and the second resistance torque is sufficient to maintain the positioning of the current opening angle against the impact of the touch operation within the operating angle range.
9. The torque-variable mechanism according to claim 1, 2, 3, 4, 5, 6, 7 or 8, wherein the outer diameters of the first friction member and the second friction member and the outer diameter of the curl are 3.8mm or less.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320878780.4U CN220748792U (en) | 2023-04-18 | 2023-04-18 | Variable torque rotating shaft mechanism in small-size space |
| PCT/CN2024/076549 WO2024217128A1 (en) | 2023-04-18 | 2024-02-07 | Rotating shaft mechanism capable of changing torque in small-sized space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320878780.4U CN220748792U (en) | 2023-04-18 | 2023-04-18 | Variable torque rotating shaft mechanism in small-size space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220748792U true CN220748792U (en) | 2024-04-09 |
Family
ID=90562980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320878780.4U Active CN220748792U (en) | 2023-04-18 | 2023-04-18 | Variable torque rotating shaft mechanism in small-size space |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN220748792U (en) |
| WO (1) | WO2024217128A1 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4203999B2 (en) * | 2004-03-30 | 2009-01-07 | オリジン電気株式会社 | Torque hinge |
| JP3134251U (en) * | 2007-05-28 | 2007-08-09 | 陳致軍 | Two-stage pivot for notebook computers |
| JP5112925B2 (en) * | 2007-12-21 | 2013-01-09 | 加藤電機株式会社 | Biaxial hinge and electronic device provided with the biaxial hinge |
| CN209053939U (en) * | 2018-07-23 | 2019-07-02 | 杭州安费诺飞凤通信部品有限公司 | It can apply to automatically spring open the hinge and biaxial hinge of mobile terminal |
| CN209838933U (en) * | 2019-02-14 | 2019-12-24 | 杭州安费诺飞凤通信部品有限公司 | Rotating shaft hinge suitable for high torque and small size |
| CN113124042B (en) * | 2019-12-31 | 2023-03-24 | 华为技术有限公司 | Hinge device and folding terminal |
| CN213899588U (en) * | 2020-07-16 | 2021-08-06 | 杭州安费诺飞凤通信部品有限公司 | Hinge with a hinge body |
| CN215058857U (en) * | 2021-04-01 | 2021-12-07 | 杭州安费诺飞凤通信部品有限公司 | Double-shaft hinge |
-
2023
- 2023-04-18 CN CN202320878780.4U patent/CN220748792U/en active Active
-
2024
- 2024-02-07 WO PCT/CN2024/076549 patent/WO2024217128A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024217128A1 (en) | 2024-10-24 |
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