CN108549461B - Rotating shaft mechanism and electronic equipment - Google Patents
Rotating shaft mechanism and electronic equipment Download PDFInfo
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- CN108549461B CN108549461B CN201810319541.9A CN201810319541A CN108549461B CN 108549461 B CN108549461 B CN 108549461B CN 201810319541 A CN201810319541 A CN 201810319541A CN 108549461 B CN108549461 B CN 108549461B
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- rotating shaft
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
- G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
Abstract
The invention discloses a rotating shaft mechanism and an electronic device, wherein the rotating shaft mechanism comprises: a first rotating shaft; a second rotating shaft; the connecting piece is used for keeping the first rotating shaft and the second rotating shaft in parallel; a base damping applying mechanism for applying a base damping between the first rotating shaft and the second rotating shaft; a first additional damping applying mechanism for applying a first additional damping between the first rotating shaft and the second rotating shaft; wherein: the basic damping is kept constant when the first rotating shaft and the second rotating shaft rotate relatively or the first rotating shaft and the second rotating shaft are static relatively; the first additional damping decreases as the relative rotational speed of the first rotating shaft and the second rotating shaft increases. The rotating shaft mechanism of the invention changes the size of one damping according to the rotation of the display end by arranging two damping provided by the basic damping applying mechanism and the first additional damping applying mechanism, thereby solving the contradiction problem between the stability and the smoothness when the user opens the display end.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to a hinge mechanism and an electronic device.
Background
Electronic devices such as notebook computers typically include a display end and a system end, wherein the display end is rotatably connected to the system end via a pivot mechanism (e.g., a hinge mechanism). The system end is internally provided with system hardware, and the display end is provided with a display screen for displaying images and digital information.
As is well known, in an electronic device, such as a notebook computer (hereinafter, referred to as a notebook computer for example), a display terminal of the electronic device has a closed state and an open state, when a user needs to use the notebook computer, the display terminal of the notebook computer needs to be first switched from the closed state to the open state, that is, a force needs to be applied to the display terminal to open the display terminal.
In order to maintain the opened display end at the opened angle, a damper is required between the display end and the system end so that the display end can be maintained at the opened angle after being opened.
If the display end is not kept at the opened angle, no damping is arranged between the display end and the system end, because the damping is unfavorable for the smoothness of the opening process of the display end.
The damping mode of the notebook computer in the prior art ensures that the smoothness of the opening process of the display end is contradictory to the stability of the display end for keeping the opening angle. For example, when the damping setting is small, the stability of the display end at the opened angle is poor, when the damping setting is large, the damping may cause the user to apply more force to the display end to open, so that the smoothness of the opening process is poor, especially when the user opens at a fast speed, the smoothness is poor, and when the display end is the display end of an ultra-thin notebook computer, and when the user opens in an accelerated manner, the display end may be deformed, which is disadvantageous to the housing and the display screen of the display end.
Disclosure of Invention
In order to solve the above technical problems in the prior art, embodiments of the present invention provide a hinge mechanism and an electronic device.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
a hinge mechanism for pivotally connecting a display end and a system end of an electronic device, comprising:
the first rotating shaft is used for being connected with the display end;
the second rotating shaft is used for being connected with the system end;
a connector for keeping the first rotating shaft and the second rotating shaft parallel;
a base damping applying mechanism for applying a base damping between the first rotating shaft and the second rotating shaft;
a first additional damping applying mechanism for applying a first additional damping between the first rotating shaft and the second rotating shaft; wherein:
the basic damping keeps constant when the first rotating shaft and the second rotating shaft rotate relatively or when the first rotating shaft and the second rotating shaft are static relatively; when the display end is opened within a preset opening angle, the first additional damping is reduced along with the increase of the relative rotating speed of the first rotating shaft and the second rotating shaft.
Preferably, the connecting members include two; the two connecting pieces are respectively arranged at two ends of the first rotating shaft and the second rotating shaft; wherein:
each connecting piece is provided with two mounting holes, and the first rotating shaft and the second rotating shaft which are positioned at the same end respectively penetrate through the two mounting holes;
the center distance between the two mounting holes of each connecting piece is configured to enable the first rotating shaft and the second rotating shaft to form a preset gap.
Preferably, the first rotating shaft comprises a first main shaft body and first end shaft bodies coaxially arranged at two ends of the first main shaft body, and the diameter of each first end shaft body is smaller than that of the first main shaft body;
the second rotating shaft comprises a second main shaft body and second end shaft bodies coaxially arranged at two ends of the second main shaft body, and the diameter of each second end shaft body is smaller than that of the second main shaft body; wherein:
the first additional damping applying mechanism is configured to apply the first additional damping to the first and second end-shafts that are on the same side.
Preferably, friction sections are formed on the peripheries of the first end shaft body and the second end shaft body;
the first additional damping applying mechanism includes:
the mandrel is arranged between the first end shaft body and the second end shaft body which are positioned on the same side; the first end of the mandrel is fixed on the connecting piece;
the rotating sleeve is sleeved on the mandrel and can rotate relative to the mandrel;
the sleeve-shaped deformation body is sleeved on the rotating sleeve in a manner of limiting relative rotation with the rotating sleeve, and the deformation body is simultaneously contacted with the friction sections of the first end shaft body and the second end shaft body;
the first blocking ring is sleeved on the rotating sleeve and blocks the second end of the deforming body, which is on the same side as the second end of the mandrel;
the permanent magnet is sleeved on the rotating sleeve, can axially move and is positioned at the first end of the deformation body;
the second retaining ring is made of a magnetic conductive material and sleeved on the rotating sleeve in a manner of limiting the second retaining ring to move away from the permanent magnet;
the elastic sheet is arranged between the second baffle ring and the permanent magnet;
the electromagnet is sleeved on the mandrel and is opposite to the permanent magnet; wherein:
the deformation body is made of an elastomer;
when the electromagnet is not electrified, the elastic sheet pushes against the deformation body through the permanent magnet with a certain pretightening force;
the electromagnet is configured in a magnetic induction direction opposite to the heteropolar pole of the permanent magnet.
Preferably, the outer peripheral surface of the deformation body is coated with a wear-resistant coating, and the deformation body is made of elastic rubber; the wear-resistant coating is made of acrylate rubber.
Preferably, the rotating shaft mechanism further comprises a second additional damping applying mechanism for applying a second additional damping between the first rotating shaft and the second rotating shaft; wherein:
the second additional damping increases with an increase in an opening angle of a display end connected to the first rotating shaft.
Preferably, the second additional damping applying mechanism includes torsion springs respectively provided on the first rotating shaft and the second rotating shaft.
Preferably, the basic damping applying mechanism includes a plurality of friction plates sleeved on the first rotating shaft and the second rotating shaft, and the friction force between the friction plates constitutes the basic damping.
The invention also discloses an electronic device, which comprises a display end and a system end, and also comprises the rotating shaft mechanism, wherein:
the display end is connected with a first rotating shaft in the rotating shaft mechanism;
and the system end is connected with a second rotating shaft in the rotating shaft mechanism.
Preferably, the device also comprises an angular speed detection module and a control module; the angular velocity detection module is used for detecting the rotating angular velocity of the display end, and the control module controls the electromagnet in the rotating shaft mechanism to be electrified according to the angular velocity measured by the angular velocity detection module.
Compared with the prior art, the rotating shaft mechanism and the electronic equipment disclosed by the invention have the beneficial effects that: the rotating shaft mechanism of the invention changes the size of one damping according to the rotation of the display end by arranging two damping provided by the basic damping applying mechanism and the first additional damping applying mechanism, thereby solving the contradiction problem between the stability and the smoothness when the user opens the display end.
Drawings
Fig. 1 is a schematic structural diagram of an electronic device disclosed in the present invention.
Fig. 2 is a schematic structural diagram of the rotating shaft mechanism disclosed in the present invention (the first support frame and the second support frame form an angle of 0 °).
Fig. 3 is a view from direction a of fig. 2.
Fig. 4 is an enlarged view of a portion B of fig. 2.
Fig. 5 is an enlarged view of a portion D of fig. 4.
Fig. 6 is an enlarged view of a portion C of fig. 2.
Fig. 7 is an enlarged view of a portion E of fig. 6.
Fig. 8 is a schematic structural diagram of the hinge mechanism disclosed in the present invention (the first bracket and the second bracket form an angle of 60 °).
Fig. 9 is a view from direction F of fig. 8.
Fig. 10 is an enlarged view of a portion G of fig. 8.
Fig. 11 is a schematic structural view of the hinge mechanism disclosed in the present invention (the first bracket and the second bracket form an angle of 120 °).
Fig. 12 is a view from direction H of fig. 11.
Fig. 13 is an enlarged view of a portion I of fig. 11.
Fig. 14 is a schematic structural diagram of the hinge mechanism disclosed in the present invention (the first bracket and the second bracket form an angle of 160 ° and approach the maximum opening angle).
Fig. 15 is a J-view of fig. 14.
Fig. 16 is an enlarged view of a portion K of fig. 14.
In the figure:
100-a spindle mechanism; 200-a display terminal; 300-system side; 400-angle sensor; 500-a control module; 10-a first shaft; 11-a first end shaft body; 111-a first shaft; 112-a first carrier; 20-a second rotating shaft; 21-a second end shaft body; 211-a second shaft; 212-a second shelf; 22-optical axis; 221-a guide groove; 30-a first additional damping applying mechanism; 31-a mandrel; 311-end cap; 32-a rotating sleeve; 33-a deformation; 331-wear resistant coating; 34-a permanent magnet; 35-an electromagnet; 351-magnet mounting case; 352-a wire; 353-locking nut; 354-buckle cover; 355-top ring; 36-a spring plate; 371 — first catch ring; 372-a second retainer ring; 373-a retaining ring for a shaft; 374 — a first thrust bearing; 375 — a second thrust bearing; 38-a platen; 39-fixing the nut; 40-a second additional damping applying mechanism; 41-moving sleeve; 411-helical guide groove; 4111-a feed section; 412-a guide; 42-a slider; 43-a spring; 44-a buffer sheet; 50-a connector; 51-a bearing; 60-friction plate; 61-tabletting; 62-locking nut.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention discloses an adjusting method for an opening process of electronic equipment, which is used for improving the use experience of a user using the electronic equipment in a damping adjusting mode. The electronic device to which the adjusting method is directed includes a display end 200 and a system end 300, and the display end 200 is pivotally connected to the system end 300, that is, as shown in fig. 1, the display end 200 can be switched between a closed state and an open state by rotating relative to the system end 300.
The method for adjusting the opening process of the electronic equipment comprises the following steps:
the open/close action state of the display terminal 200 relative to the system terminal 300 is obtained. The opening and closing action state comprises two conditions, one is the rotation action of the display end 200 relative to the system end 300, and the rotation action takes the angular speed of rotation as a measurement parameter; another case is the open/close state of the display end 200 relative to the system end 300, and the open/close state takes the open angle as a measurement parameter.
In this step, damping is applied to the display terminal 200 and the system terminal 300 for the above two cases of the opening and closing operation state, according to the obtained opening and closing operation state.
The adjusting method disclosed by the invention can apply damping in one strategy for the rotation action of the display end 200 independently, and can also apply damping in another strategy for the rotation action of the display end 200 and the opening and closing state of the display end 200 at the same time.
When the adjusting method is directed to the rotation action of the display end 200, it is used to solve the contradiction between the stability of the display end 200 maintaining the opening angle by the damping provided by the display end 200 in the prior art and the smoothness of the opening process. The adjustment method adopted for the rotation action of the display end 200 is as follows:
acquiring an angular velocity of the rotation of the display end 200 relative to the system end 300, for example, by an angular velocity detection device (e.g., an angular velocity sensor 400) to acquire the angular velocity of the rotation of the display end 200;
the damping between the display terminal 200 and the system terminal 300 is changed according to the angular velocity at which the display terminal 200 rotates, so that the applied damping decreases as the angular velocity increases.
According to the above, when the display end 200 is turned on, the angular velocity thereof increases from 0, and the damping between the display end 200 and the system end 300 becomes small, thereby improving the smoothness of the opening process.
In order to improve the smoothness of the rotation process of the display terminal 200 without losing the stability of being maintained in the opened state (i.e., the display terminal 200 still has a high ability to be maintained at the opened angle), two kinds of damping are applied according to whether the display terminal 200 is rotated. Specifically, the method comprises the following steps:
when the angular velocity of the display end 200 is 0, that is, when the display end 200 is in a stationary state, a first damping is applied between the display end 200 and the system end 300;
when the angular velocity of the display terminal 200 is greater than 0, that is, when the display terminal 200 is in the rotation state, a second damping is applied between the display terminal 200 and the system terminal 300, and the second damping is smaller than the first damping, and the second damping decreases as the angular velocity of the display terminal 200 increases.
From the above embodiments, it can be seen that: when the display end 200 is in a static state, the damping between the display end 200 and the system end 300 is large, which improves the stability of the display end 200 in maintaining the opened state; when the display end 200 is in a rotating state, the damping between the display end 200 and the system end 300 is smaller than the damping when the display end 200 is in a static state, which improves the smoothness of the rotating process of the display end 200, and especially when the display end 200 rotates in a mode of increasing the angular velocity, the damping is smaller, which inevitably reduces the deformation degree of the display end 200 of the ultrathin notebook computer, and effectively protects the display end 200.
The above-described embodiment of the present invention applies two kinds of damping according to whether the display terminal 200 is rotated or not, thereby solving the contradiction between the stability and the smoothness when the user opens the display terminal 200.
The first damping and the second damping may be obtained by one type of damping change, for example, the first damping and the second damping may be obtained by one type of damping applying mechanism that changes the magnitude of the damping according to the static and rotational movement of the display end 200.
In a preferred embodiment of the invention, both the first and the second damping are obtained by superposition of two types of damping. Specifically, the first damping and the second damping are both obtained by superposition of the basic damping and the first additional damping.
The basic damping has the characteristics that: the damping value of the basic damping is kept constant regardless of whether the display end 200 is in a stationary state or a rotating state.
The characteristics of the first additional damping are: the first additional damping is a decreasing function of angular velocity. That is, the first additional damping decreases with increasing angular velocity and increases with decreasing angular velocity.
After the basic damping and the first additional damping are superposed to form the first damping and the second damping, the first damping and the second damping are in accordance with the size relation for solving the contradiction between stability and smoothness, namely the first damping is still larger than the second damping.
The advantage of having the first damping and the second damping superimposed by the base damping and the first additional damping is that: the characteristics of the first damping and the second damping are not easily achieved simultaneously with one type of damping, but the characteristics of the first damping and the second damping are easily achieved simultaneously by superimposing the basic damping with a constant characteristic and the varying first additional damping.
In a preferred embodiment of the present invention, the damping value of the first additional damping when the angular velocity is greater than the preset angular velocity is made equal to the damping value of the first additional damping when the angular velocity is the preset angular velocity. That is, when the display terminal 200 is rotated from the rest state, the second damping is not abruptly increased, i.e., the maximum value of the second damping is equal to the first damping. The advantages of such an arrangement are: at the moment when the display end 200 starts to rotate from a standstill, the damping between the display end 200 and the system end 300 cannot be increased in a stepwise manner, which inevitably avoids sudden changes of the feedback force of the display end 200 to the user, and improves the user experience.
In a preferred embodiment of the invention, the maximum damping value of the first additional damping is made larger than the damping value of the basic damping. That is, the first additional damping not only makes a major contribution to the ability of the display end 200 to maintain the opened angle, but also increases the variation degree of the damping applied to the display end 200 when the display end 200 rotates, and improves the ability to cope with a larger angular velocity variation range of the display end 200.
It should be noted that: the strategy of applying damping provided by the above-described embodiment takes only the angular velocity of the display end 200 as the only consideration.
When a user uses an electronic device, the relationship between the damping and the opening angle of the display end 200 is also an aspect that affects the user experience, and is also a factor that protects the electronic device from being damaged, and the adjustment method disclosed in the following embodiment relates to how to integrate the rotation action of the display end 200 and the opening and closing state of the display end 200 to apply the damping.
The adjusting method comprises the following steps:
obtaining an opening angle of the display end 200 relative to the system end 300;
damping is applied between the display terminal 200 and the system terminal 300 according to the obtained opening angle such that the damping increases as the opening angle of the display terminal 200 increases.
In the above method, the change of the angular velocity of the rotation of the display terminal 200 is simultaneously referred to, and for this reason, the second additional damping, which increases as the opening angle increases, is superimposed with the first additional damping and the base damping. The mode of applying damping according to the rotating action of the display end 200 and the opening and closing state of the display end 200 is integrated, so that the use experience of a user is further improved.
For example, when the user applies force to open the display end 200 at a certain angular velocity from a stationary state, the damping applied to the display end 200 is smaller than that at the stationary state, but gradually increases with the increase of the opening angle, so that on one hand, the opening operation of the display end 200 is smoother, and at the same time, the user is provided with a feedback force increasing message (generally, when the user opens the cover similar to the display end 200, the user is more familiar with the feedback force increasing feeling with the increase of the opening angle).
In a preferred embodiment of the present invention, when the opening angle of the display end 200 is greater than the preset opening angle and the angular velocity is greater than the preset angular velocity, the damping value of the second damping between the display end 200 and the system end 300 is made greater than the damping value of the first damping when the opening angle of the display end 200 is less than the preset opening angle and is stationary. The preset opening angle is set to an angle value or an angle range close to the maximum opening angle; the preset angular velocity is referenced to a user reaction sensitivity, which is: the preset angular velocity may be set to 0.5 revolutions per second for the time dimension in which the user refrains from continuing to rotate the display 200.
The advantage of having the first and second dampers arranged as described above is that:
when the user applies force to rotate the display end 200 to the maximum opening angle at a large angular velocity, the damping applied to the display end 200 needs to be larger than the damping applied to the display end 200 when the display end is smaller than the preset opening angle and is stationary, so that on one hand, the user is prompted to open the display end 200 to the maximum angle through correspondingly increased feedback force, and on the other hand, the user is facilitated to stop or slow down the display end 200 from continuing to rotate, so as to avoid the impact on relevant parts caused by the display end 200 rotating to the maximum angular velocity at the large angular velocity.
As shown in fig. 2 to 16, the present invention further discloses a hinge mechanism 100, such as a display end 200 and a system end 300 of a notebook computer (a kind of electronic device) pivotally connected through the hinge mechanism 100. The spindle mechanism 100 includes: a first rotating shaft 10, a second rotating shaft 20, a connecting member 50, a basic damping applying mechanism, and a first additional damping applying mechanism 30. Wherein: the first rotating shaft 10 is connected with the display end 200 through a first bearing frame 112, and the second rotating shaft 20 is connected with the system end 300 through a second bearing frame 212; the connecting member 50 is used for keeping the first rotating shaft 10 and the second rotating shaft 20 in a parallel state, and keeping a certain gap between the first rotating shaft 10 and the second rotating shaft 20, so as to prevent the first rotating shaft 10 and the second rotating shaft 20 from being rubbed by direct contact; the basic damping applying mechanism is used for applying basic damping between the first rotating shaft 10 and the second rotating shaft 20, and the basic damping is kept constant when the first rotating shaft 10 and the second rotating shaft 20 rotate relatively or when the first rotating shaft 10 and the second rotating shaft 20 are stationary relatively, accordingly, basic damping is formed between the display end 200 and the system end 300 of the electronic device, so that the damping applied by the basic applying mechanism meets the requirement of the adjusting method on the basic damping characteristic; the first additional damping applying mechanism 30 is used for applying a first additional damping between the first rotating shaft 10 and the second rotating shaft 20, and the first additional damping decreases with the increase of the relative rotating speed of the first rotating shaft 10 and the second rotating shaft 20, accordingly, a first additional damping is formed between the display end 200 and the system end 300 of the electronic device, so that the damping applied by the first additional damping applying mechanism 30 meets the requirement of the adjusting method for the first additional damping characteristic.
By using the basic damping applying mechanism and the first additional damping applying mechanism 30 of the rotating shaft mechanism 100 and combining with the adjusting method for the rotation condition of the display end 200, not only the stability of the display end 200 keeping the opened state can be improved, but also the smoothness of the rotation process of the display end 200 is improved, and the contradiction between the stability of the display end 200 in a static state and the smoothness of the rotation of the electronic device in the prior art is solved.
In a preferred embodiment of the present invention, as shown in fig. 2, 4 and 5, the first rotating shaft 10 includes a first main shaft body, first end shaft bodies 11 coaxially disposed at both ends of the first main shaft body, and two first shafts 111 respectively disposed at end portions of the two first end shaft bodies 11; the second rotating shaft 20 includes a second main shaft body, second end shaft bodies 21 coaxially disposed at two ends of the second main shaft body, and two second shaft rods 211 respectively disposed at end portions of the two second end shaft bodies 21. Connecting piece 50 includes two, two mounting holes have all been seted up to every connecting piece 50, lie in two mounting holes that first shaft pole 111 and second shaft pole 211 with one side wear to establish same connecting piece 50 simultaneously, and install bearing 51 between the mounting hole, and make the distance between two mounting holes be a bit bigger than the axle center distance between first pivot 10 and the second pivot 20, thereby make and form certain clearance between the first main shaft body and the second main shaft body, in order to avoid direct contact and produce the friction, in order to avoid this friction to disturb basic damping, and the distance between two mounting holes can not set up too big, in order to avoid making the distance between two pivots too big and cause the increase of electronic equipment thickness.
The basic damping applying mechanism may be various types, for example, a torsion spring provided on the first rotating shaft 10 and the second rotating shaft 20 to provide the basic damping by a torsion force, and in a preferred embodiment of the present invention, as shown in fig. 2, the basic damping applying mechanism includes a plurality of friction plates 60, and a pressing plate 61 and a locking nut 62 for pressing and locking the friction plates 60, specifically, the plurality of friction plates 60 are sleeved on the first shaft rod 111 and the second shaft rod 211, the pressing plate 61 is sleeved on the first shaft rod 111 and the second shaft rod 211 and is located at an outer side of the friction plates 60 far from the connecting member 50, the locking nut 62 is respectively sleeved on the first shaft rod 111 and the second shaft rod 211 to press the friction plates 60 between the pressing plate 61 and the connecting member 50, so that a friction force formed between the friction plates 60 does not substantially change when the two rotating shafts rotate and when the two rotating shafts are stationary, thereby constituting the basic damping applied between the first rotating shaft 10 and the second rotating shaft 20, i.e. constitutes the basic damping between the display end 200 and the system end 300.
Friction sections are arranged on the peripheries of the first end shaft body 11 and the second end shaft body 21 in a material processing and coating mode; the first additional damping applying mechanism 30 is disposed between the first end shaft body 11 and the second end shaft body 21 to apply the first additional damping between the first rotating shaft 10 and the second rotating shaft 20 by contact of an acting member thereon with the friction section. The first additional damping applying mechanism 30 specifically includes: the core shaft 31, the rotating sleeve 32, the deforming body 33, the first retaining ring 371, the second retaining ring 372, the permanent magnet 34, the elastic sheet 36, the electromagnet 35 and the like. Wherein, the first end of the mandrel 31 forms a step to penetrate through the position between the two mounting holes of the connecting piece 50 and is fixed on the connecting piece 50 through the fixing nut 39; an end cover 311 is fixed at the second end of the mandrel 31; the rotating sleeve 32 is freely rotatably sleeved on the mandrel 31 through a first thrust bearing 374 and a second thrust bearing 375 which are arranged at the two ends of the rotating sleeve, and the end cover 311 limits the rotating sleeve 32 from being separated from the second end of the mandrel 31; the deformable body 33 is in a sleeve shape, is sleeved on the rotating sleeve 32, limits relative rotation with the rotating sleeve 32 through a key, and is not limited in the axial direction, the deformable body 33 can be made of an elastic material, for example, elastic rubber, a wear-resistant coating 331 is coated on the periphery of the deformable body 33, and the wear-resistant coating 331 can be made of acrylate rubber to improve the wear resistance and the contact friction of the deformable body 33; the first retaining ring 371 is sleeved on one side of the rotating sleeve 32, which is located at the second end of the mandrel 31, and the axial movement of the rotating sleeve is limited by the shaft retaining ring 373, and the first retaining ring 371 is stopped at the end of the deformable body 33, which is located at one side of the second end of the mandrel 31, and the outer diameter of the first retaining ring 371 is slightly smaller than that of the deformable body 33, so that after the deformable body 33 deforms, the diameter of the deformable body 33 is larger than that of the first retaining ring; one end of the deformation body 33, which is far away from the first retainer ring, is provided with a pressure plate 38 which is sleeved on the rotating sleeve 32, the pressure plate 38 is directly attached to the deformation body 33, and the permanent magnet 34 is sleeved on the rotating sleeve 32 and is closely attached to the pressure plate 38; a second retaining ring 372 (the second retaining ring 372 is made of a magnetic conductive material) is also sleeved on the rotating sleeve 32 and is limited to move in a direction away from the permanent magnet 34 by a shaft retaining ring 373; the elastic sheet 36 is sleeved on the rotating sleeve 32 and located between the permanent magnet 34 and the second retaining ring 372, and the elastic sheet 36 applies a certain pre-tightening pressure to the deformable body 33 through the permanent magnet 34 and the pressing plate 38 by means of elastic deformation, so that the deformable body 33 is reduced in axial size and increased in diameter through deformation, and further the deformable body 33 simultaneously extrudes friction sections on the first end shaft body 11 and the second end shaft body 21 with a certain radial force; the electromagnet 35 is installed in the magnet installation shell 351, the magnet installation shell 351 is sleeved on the mandrel 31, one side of the magnet installation shell 351, which is opposite to the permanent magnet 34, is hollowed out so as to form a magnetic action with the permanent magnet 34 after the electromagnet 35 generates a magnetic field, the mandrel 31 is further sleeved with a buckle cover 354, a top ring 355 and a lock nut 353, the top ring 355 and the buckle cover 354 are respectively positioned at two sides of the magnet installation shell 351, the lock nut 353 pushes against the buckle cover 354 to limit the axial movement of the magnet installation shell 351, the electromagnet 35 is provided with an iron core and a coil wound on the iron core, the iron core is used for increasing the magnetic field intensity generated by the electromagnet 35 when the electromagnet is electrified, and a lead 352 connected with the coil penetrates through a connecting plate and other parts to be connected with a power supply of electronic equipment through a current control element.
The basic damping provided by the basic damping applying mechanism disclosed in the above embodiments conforms to the basic damping required by the above adjusting method (discussed above and not described herein).
The operation of the first additional damping mechanism will be described below in conjunction with the above-described adjustment method to describe that the first additional damping applying mechanism 30 disclosed in the above-described embodiment also meets the first additional damping required by the above-described adjustment method:
the first additional damping applying mechanism 30 is connected to a power source through a current control element; when the display end 200 is kept in a static state, the power supply does not supply power to the coil of the electromagnet 35, the elastic sheet 36 deforms the deformable body 33 to press the first end shaft body 11 and the second end shaft body 21 with a certain radial force so as to form a large friction force between the first rotating shaft 10 and the second rotating shaft 20, and the friction force formed between the friction plates 60 jointly form a first damping, namely the first damping is formed by a constant basic damping and a maximum value of a first additional damping; when the display end 200 rotates, the power supply energizes the electromagnet 35, and the current direction makes the electromagnet 35 opposite to the permanent magnet 34, so that the electromagnet 35 attracts the permanent magnet 34, thereby reducing the deformation degree or driving of the deformable body 33, reducing the radial force, reducing the friction force, thereby reducing the first additional damping applied by the deformable body 33 on the first rotating shaft 10 and the second rotating shaft 20, and when the angular velocity of the display end 200 is larger, the larger the current applied to the coil is, the smaller the deformation degree of the deformable body 33 is, so that the friction force is smaller, so that the smaller the first additional damping is, and correspondingly, the smaller the second damping is. So that the damping applied between the display end 200 and the system end 300 meets the requirements of the above-described adjustment method.
In a preferred embodiment of the present invention, the rotating shaft mechanism 100 further includes a second additional damping applying mechanism 40, the second additional damping applying mechanism 40 being for applying a second additional damping between the first rotating shaft 10 and the second rotating shaft 20; the second additional damping increases as the opening angle of the display end 200 connected to the first rotation shaft 10 increases. As can be seen from the above-disclosed adjusting method, the second additional damping applying mechanism 40 meets the requirements of the adjusting method disclosed in the above-described preferred embodiment, thereby improving the user experience of the electronic device.
In a preferred embodiment of the present invention, as shown in fig. 2 to 16, a section of the optical axis 22 is machined on the first main shaft body of the first rotating shaft 10, and the second additional damping applying mechanism 40 includes a moving sleeve 41, a spring 43, and a columnar sliding body 42 and a buffer sheet 44. The movable sleeve 41 is sleeved on the optical axis 22, and a guide body 412 is arranged on the inner wall of the movable sleeve 41 to match with a guide groove 221 axially arranged on the optical axis 22, so that the movable sleeve 41 only moves along the axis of the optical axis 22; the spring 43 is sleeved on the optical axis 22, and two ends of the spring are respectively abutted against one end of the shaft shoulder and one end of the movable sleeve 41; the buffer sheet 44 is sleeved on the optical axis 22 and located at the other end of the movable sleeve 41; the outer wall of the movable sleeve 41 is provided with a spiral guide groove 411 which extends in an axial spiral manner; the slider 42 is detachably fixed to the second main shaft body in the radial direction and is located in the spiral guide slot 411. When the display end 200 is in the closed state, the sliding body 42 approaches the first end of the spiral guide slot 411, at this time, the moving body is far away from the shaft shoulder at the end where the spring 43 is arranged and contacts with the buffer sheet 44, when the display end 200 is opened, the sliding body 42 slides along the spiral guide slot 411, so that the spring 43 is compressed, the reaction force of the spring 43 on the moving sleeve 41, which is formed by the compression, is transmitted through the side wall of the guide slot 221 and is transmitted to the sliding body 42, so that the first rotating shaft 10 needs a certain torsion force to enable the sliding body 42 to slide along the spiral guide slot 411, and at this time, the reaction force of the sliding body 42 on the spiral guide slot 411 in the circumferential direction of the first rotating shaft 10 forms a second additional damping. And when the angle of opening of the display end 200 is larger, the reaction force of the sliding body 42 to the rotation of the first rotating shaft 10 is larger, so that the second additional damping is larger, which meets the requirement of the adjustment method provided by the above-mentioned one preferred embodiment on the change of the second additional damping.
It should be noted that:
1. the groove wall of the spiral guide slot 411 contacting the slider 42 needs to be provided with a smooth surface, and the slider 42 needs to be provided with a smooth surface to minimize the friction force generated by the contact of the slider 42 and the groove wall to prevent the friction force from interfering with the second additional damping, so that the second additional damping is only related to the lead of the spring 43 and the spiral guide slot 411, thereby making the second additional damping have a stable relationship with the first rotating shaft 10.
2. The buffer sheet 44 is used to prevent the moving sleeve 41 from impacting the shoulder when the display end 200 is closed.
3. It should be understood that the electronic device is usually used on a supporting surface, and is influenced by the supporting surface, so that only the first rotating shaft 10 is usually relatively rotated, and therefore, it is reasonable to arrange the moving sleeve 41 on the first rotating shaft 10.
As can be seen from the above, in a preferred embodiment there is provided a method of adjusting: when the opening angle of the display end 200 is greater than the preset opening angle and the angular velocity is greater than the preset angular velocity, the damping value of the second damping between the display end 200 and the system end 300 is greater than the damping value of the first damping of the display end 200 that is less than the preset opening angle. The preset opening angle is set to an angle value or an angle range close to the maximum opening angle; the preset angular velocity is referenced to a user reaction sensitivity, which is: the preset angular velocity may be set to 0.5 revolutions per second for the time dimension in which the user refrains from continuing to rotate the display 200. The advantage of having the first and second dampers arranged as described above is that: when the user applies force to make the display end 200 rotate to the maximum opening angle at a larger angular velocity, the damping applied to the display end 200 needs to be larger than the damping applied to the display end 200 when the display end is stationary at an angle smaller than the preset angle, so that on one hand, the user is prompted to open the display end 200 to the maximum angle by correspondingly increased feedback force, and on the other hand, the user is facilitated to stop or slow down the display end 200 from continuing to rotate, so as to avoid the impact on related parts caused by the display end 200 rotating to the maximum angular velocity at a larger angular velocity.
To meet the requirements of this regulation method, in a preferred embodiment of the invention,
the second end (end) of the spiral guide slot 411 forms a feeding section 4111 with an increased lead. When the display end 200 is opened to be close to the maximum opening angle, the sliding body 42 enters the feeding section 4111, and the feeding section 4111 enables the reaction force of the sliding body 42 on the first rotating shaft 10 to be greater than the non-feeding section 4111 when the first rotating shaft rotates for each unit angle, so that the increase degree of the second additional damping is increased, the angular velocity can be greater than the preset angular velocity by reasonably configuring the lead of the feeding section 4111, and when the opening angle is greater than the preset opening angle, the damping value of the second damping between the display end 200 and the system end 300 is greater than the damping value of the first damping, smaller than the preset opening angle, of the display end 200, so that the requirements of the adjusting method are met, a prompt can be given to a user, and the impact on related components when the display end 200 is opened to the maximum angle at a greater angular velocity can be effectively prevented.
The present invention further includes an electronic device, which includes a display end 200 and a system end 300, and the above-mentioned hinge mechanism 100, wherein: the display end 200 is connected with the first rotating shaft 10 through the first bearing frame 112; the system end 300 is connected to the second shaft 20 via the second bracket 212.
In a preferred embodiment, the electronic device further comprises an angular velocity detection module, e.g., angular velocity sensor 400, and a control module 500; the angular velocity detection module is used for detecting the angular velocity of the rotation of the display end 200, and the control module 500 controls the current control unit according to the angular velocity measured by the angular velocity detection module to enable the power supply of the electronic device to energize the electromagnet 35 in the rotating shaft mechanism 100, so that the power-on/off state of the electromagnet 35 and the magnitude of the acting force of the electromagnet 34 meet the requirements of the rotating shaft mechanism 100 and the adjustment method.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (7)
1. A hinge mechanism for pivotally connecting a display end and a system end of an electronic device, comprising:
the first rotating shaft is used for being connected with the display end;
the second rotating shaft is used for being connected with the system end;
a connector for keeping the first rotating shaft and the second rotating shaft parallel;
a base damping applying mechanism for applying a base damping between the first rotating shaft and the second rotating shaft;
a first additional damping applying mechanism for applying a first additional damping between the first rotating shaft and the second rotating shaft; wherein:
the basic damping keeps constant when the first rotating shaft and the second rotating shaft rotate relatively or when the first rotating shaft and the second rotating shaft are static relatively; when the display end is opened within a preset opening angle, the first additional damping is reduced along with the increase of the relative rotating speed of the first rotating shaft and the second rotating shaft;
the number of the connecting pieces is two; the two connecting pieces are respectively arranged at two ends of the first rotating shaft and the second rotating shaft; wherein:
each connecting piece is provided with two mounting holes, and the first rotating shaft and the second rotating shaft which are positioned at the same end respectively penetrate through the two mounting holes;
the center distance between the two mounting holes of each connecting piece is configured to enable the first rotating shaft and the second rotating shaft to form a preset gap;
the first rotating shaft comprises a first main shaft body and first end shaft bodies coaxially arranged at two ends of the first main shaft body, and the diameter of each first end shaft body is smaller than that of the first main shaft body;
the second rotating shaft comprises a second main shaft body and second end shaft bodies coaxially arranged at two ends of the second main shaft body, and the diameter of each second end shaft body is smaller than that of the second main shaft body; wherein:
the first additional damping applying mechanism is used for applying the first additional damping to the first end shaft body and the second end shaft body which are positioned on the same side;
friction sections are formed on the peripheries of the first end shaft body and the second end shaft body;
the first additional damping applying mechanism includes:
the mandrel is arranged between the first end shaft body and the second end shaft body which are positioned on the same side; the first end of the mandrel is fixed on the connecting piece;
the rotating sleeve is sleeved on the mandrel and can rotate relative to the mandrel;
the sleeve-shaped deformation body is sleeved on the rotating sleeve in a manner of limiting relative rotation with the rotating sleeve, and the deformation body is simultaneously contacted with the friction sections of the first end shaft body and the second end shaft body;
the first blocking ring is sleeved on the rotating sleeve and blocks the second end of the deforming body, which is on the same side as the second end of the mandrel;
the permanent magnet is sleeved on the rotating sleeve, can axially move and is positioned at the first end of the deformation body;
the second retaining ring is made of a magnetic conductive material and sleeved on the rotating sleeve in a manner of limiting the second retaining ring to move away from the permanent magnet;
the elastic sheet is arranged between the second baffle ring and the permanent magnet;
the electromagnet is sleeved on the mandrel and is opposite to the permanent magnet; wherein:
the deformation body is made of an elastomer;
when the electromagnet is not electrified, the elastic sheet pushes against the deformation body through the permanent magnet with a certain pretightening force;
the electromagnet is configured in a magnetic induction direction opposite to the heteropolar pole of the permanent magnet.
2. The spindle mechanism according to claim 1, wherein an outer peripheral surface of the deformation body is coated with a wear-resistant coating, the deformation body being made of an elastic rubber; the wear-resistant coating is made of acrylate rubber.
3. The spindle mechanism according to claim 1, further comprising a second additional damping applying mechanism for applying a second additional damping between the first and second spindles; wherein:
the second additional damping increases with an increase in an opening angle of a display end connected to the first rotating shaft.
4. The spindle mechanism according to claim 3, wherein the second additional damping applying mechanism comprises torsion springs provided on the first spindle and the second spindle, respectively.
5. The spindle mechanism according to claim 1, wherein the basic damping applying mechanism includes a plurality of friction plates sleeved on the first spindle and the second spindle, and friction between the friction plates constitutes the basic damping.
6. An electronic device comprising a display side and a system side, further comprising a hinge mechanism according to any one of claims 1 to 5, wherein:
the display end is connected with a first rotating shaft in the rotating shaft mechanism;
and the system end is connected with a second rotating shaft in the rotating shaft mechanism.
7. The electronic device of claim 6, further comprising an angular velocity detection module and a control module; the angular velocity detection module is used for detecting the rotating angular velocity of the display end, and the control module controls the electromagnet in the rotating shaft mechanism to be electrified according to the angular velocity measured by the angular velocity detection module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810319541.9A CN108549461B (en) | 2018-04-11 | 2018-04-11 | Rotating shaft mechanism and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810319541.9A CN108549461B (en) | 2018-04-11 | 2018-04-11 | Rotating shaft mechanism and electronic equipment |
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| CN108549461B true CN108549461B (en) | 2021-09-07 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109634366B (en) * | 2019-01-02 | 2021-05-11 | 王涵 | Notebook computer |
| CN109917860A (en) * | 2019-04-12 | 2019-06-21 | 泰州市创新电子有限公司 | Notebook computer rotation shaft |
| CN110083206B (en) * | 2019-04-24 | 2020-09-11 | 维沃移动通信有限公司 | Folding screen terminal equipment and control method thereof |
| CN114356035A (en) * | 2022-01-19 | 2022-04-15 | 合肥联宝信息技术有限公司 | Two-way opening and closing mechanism and electronic equipment |
| CN115263900A (en) * | 2022-05-16 | 2022-11-01 | 联宝(合肥)电子科技有限公司 | Rotating shaft mechanism and electronic equipment |
| CN114810806B (en) * | 2022-05-20 | 2023-06-02 | 苏州华星光电技术有限公司 | Hinge structure and display module |
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| CN108549461A (en) | 2018-09-18 |
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