CN109882498A - Biaxial hinge and portable electronic device - Google Patents
Biaxial hinge and portable electronic device Download PDFInfo
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- CN109882498A CN109882498A CN201910306408.4A CN201910306408A CN109882498A CN 109882498 A CN109882498 A CN 109882498A CN 201910306408 A CN201910306408 A CN 201910306408A CN 109882498 A CN109882498 A CN 109882498A
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Abstract
This application involves hinge field, it is related to a kind of biaxial hinge and portable electronic device.Biaxial hinge includes: the first transmission shaft lever, is formed with the first helical gear；Second driving shaft bar is formed with the second helical gear in the position opposite with the first helical gear；And first intermediary's helical gear and second intermediary's helical gear, it is engaged respectively with the first helical gear and the second helical gear, the hand of spiral of the first helical gear gear teeth is identical as the hand of spiral of the second helical gear gear teeth, and the absolute value of the helical angle of the helical angle of the first helical gear gear teeth and the second helical gear gear teeth differs；First transmission shaft lever and second driving shaft bar can be rotated in linkage with different angular speed, opposite direction of rotation.According to the biaxial hinge and portable electronic device of the application, two front ends for being able to solve two shells when the portable electronic device of application biaxial hinge is in 360 degree of closed states are in aligned condition always and lead to the problem of user's operation inconvenience.
Description
Technical field
The present invention relates to hinge fields, particularly, are related to a kind of biaxial hinge and portable electronic device.
Background technique
With laptop, clamshell phone or E-book reader etc. portable electronic device it is gradually general
And change, user also gradually increases the individual requirement of this kind of portable electronic device.
Under normal conditions, the portable electronic device of such as laptop has for example, by two shafts of biaxial hinge
Two parts of connection, to drive two parts rotation of portable electronic device, for example, in the display screen and keyboard of laptop
When rotating to 360 degree of closed states away form one another from 0 degree of closed state facing with each other, before the front end of display screen and keyboard
Needs when holding and be in aligned condition always, and making display screen and keyboard being in 360 degree of closed states away form one another in this way
Hand causes that user's is inconvenient when going again towards 0 degree of closed state rotation facing with each other.
Summary of the invention
The purpose of the present invention is to provide a kind of biaxial hinge and portable electronic device, using the biaxial hinge and
Portable electronic device with the biaxial hinge is able to solve at the portable electronic device of the above-mentioned biaxial hinge of application
Two front ends of two shells being connected to each other when 360 degree of closed states by biaxial hinge are in aligned condition always to cause
The problem of user's operation inconvenience.
The first aspect of the present invention provides a kind of biaxial hinge, wherein the biaxial hinge includes:
First transmission shaft lever, is formed with the first helical gear, and first helical gear has first rotation；
Second driving shaft bar is formed with the second helical gear in the position opposite with first helical gear；Described second tiltedly
Gear has the second rotation axis；The first rotation is arranged in parallel with second rotation axis, and
First intermediary's helical gear and second intermediary's helical gear, first intermediary helical gear are nibbled with first helical gear
It closes, second intermediary helical gear is engaged with second helical gear, and first intermediary helical gear and second intermediary are oblique
Gear is formed as one and has common third rotation axis, and the third rotation axis is perpendicular to by first rotary shaft
The plane that line and second rotation axis determine；
The hand of spiral of the first helical gear gear teeth is identical as the hand of spiral of the described second helical gear gear teeth, and
The absolute value of the helical angle of the absolute value and described second helical gear gear teeth of the helical angle of the first helical gear gear teeth is not
Deng；
By being meshed respectively with first intermediary helical gear and second intermediary helical gear, make first transmission
Shaft and the second driving shaft bar are rotated in linkage with angular speed different from each other, reciprocal direction of rotation.
Preferably, the helical gear tooth top diameter of a circle of first intermediary and the helical gear outside circle of the second intermediary
Diameter is equal, and the first helical gear tooth top diameter of a circle is equal with the described second helical gear tooth top diameter of a circle.
Preferably, the helical gear tooth top diameter of a circle of first intermediary and the helical gear outside circle of the second intermediary
Diameter is equal.
Preferably, first intermediary helical gear is fan-shaped and has the first curved portion engaged with first helical gear
Point, second intermediary helical gear is fan-shaped and has the second arch section engaged with second helical gear.
Preferably, first transmission shaft lever and the second driving shaft bar with relative rotation angle 0 degree to 360 degree it
Between mode rotate, the helical gear rotation angle of first intermediary helical gear and second intermediary 0 degree to 180 degree it
Between, the relative rotation angle is defined as the rotation angle of first transmission shaft lever and the rotation of the second driving shaft bar
The sum of angle.
Preferably, the described first helical gear tooth top diameter of a circle and the described second helical gear tooth top diameter of a circle phase
Deng.
Preferably, the biaxial hinge further include:
Support base has the first shaft hole for being spaced apart setting, the second axis hole and between the first shaft hole and described the
Installation space between two axis holes, first transmission shaft lever and the second driving shaft bar extend through the first shaft hole and
Second axis hole, first intermediary helical gear and second intermediary helical gear are installed in the installation space；
Multiple torsion gaskets, be arranged in a manner of overlieing one another and elastomeric overmold described in the first transmission shaft lever and described the
Two transmission shaft levers adjust first transmission shaft lever and the second driving shaft bar by adjusting the quantity of the torsion gasket
Torsion；And/or
Distinguish the plate that elastic tight coats first transmission shaft lever and the second driving shaft bar at least one both ends
Coat torsion elements；And/or
First torsion spring group and the second torsion spring group and two fastening nuts, are arranged in first transmission shaft lever respectively
With the second driving shaft bar, for changing the torsion to be applied to first transmission shaft lever and the second driving shaft bar；
Described two fastening nuts are screwed in respectively on the end of first transmission shaft lever and the second driving shaft bar, to described
Multiple torsion gaskets and the first torsion spring group and the second torsion spring group press.
Preferably, each of the multiple torsion gasket includes:
Axle portion is covered, there is set axis hole, one of first transmission shaft lever and the second driving shaft bar are through described
Cover the set axis hole of axle portion；
Axle portion is pressed from both sides, there is a pair of curved arm, the pair of bend arm clamps first transmission shaft lever and described second and passes
The ora terminalis of the other of moving axis bar, the pair of bend arm is separated from each other；And
Interconnecting piece connects the set axle portion and the folder axle portion.
There is provided a kind of portable electronic device according to the second aspect of the invention, including first shell, second shell and such as
Biaxial hinge described in upper figure；
The first shell is connected to first transmission shaft lever via the first gusset piece, and the second shell is via second
Gusset piece is connected to the second driving shaft bar.
Preferably, the orientation of the first shell and the second shell includes: the first shell and the second shell
Body facing with each other 0 degree is in that 180 degree is open and flat and described first in face of closure, the first shell and the second shell each other
Shell and the second shell away form one another 360 degree are in 360 in the first shell and the second shell back to closure
When degree is back to closure, the free end opposite with the biaxial hinge of the first shell and the second shell with it is described double
The opposite free end of pivot hinge offsets one from another.
Compared with prior art, the invention has the benefit that
The biaxial hinge that embodiment according to the present invention provides, can pass through the spiral side of the described first helical gear gear teeth
To identical as the hand of spiral of the described second helical gear gear teeth, but the absolute value of the helical angle of the first helical gear gear teeth
Differed with the absolute value of the helical angle of the described second helical gear gear teeth and the first helical gear and second helical gear difference
Be intermeshed with first intermediary's helical gear and second intermediary's helical gear, can not only make two shafts of two biaxial hinges link and
Opposite direction rotation transmission, but also the transmission ratio of two shafts of biaxial hinge can be changed.
In addition, can be realized according to the portable electronic device of application biaxial hinge as described above in portable electronic
Device is in 360 degree back in the state of closure, and operator can be according to the free end of first shell and the freedom of second shell
End offsets one from another, and easily operates the rotation for being located remotely from each other its first shell free end and second shell free end with hand,
Relative angle is formed by continue adjustment first shell and second shell.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of the main member of the biaxial hinge of embodiment according to the present invention；
Fig. 2 is first intermediary's helical gear of the biaxial hinge of embodiment according to the present invention and the second intermediary is helical gear shows
It is intended to；
Fig. 3 is the schematic diagram of the biaxial hinge of embodiment according to the present invention；
Fig. 4 is the schematic diagram of the torsion gasket of an embodiment according to the present invention；And
Fig. 5 is the schematic diagram of torsion gasket according to another embodiment of the present invention.
Appended drawing reference:
The first transmission shaft lever of 1-；The first helical gear of 11-；2- second driving shaft bar；The second helical gear of 21-；The first intermediary of 3-
Helical gear；The first arch section of 31-；The second intermediary of 4- helical gear；The second arch section of 41-；5- support base；51- first shaft hole；
The second axis hole of 52-；53- installation space；60- the first torsion gasket；61- the second torsion gasket；611- non-circular hole；81- first
Torsion spring group；82- the second torsion spring group；9- fastening nut；6'- torsion gasket；61'- covers axle portion；62'- presss from both sides axle portion；63'- connects
Socket part；The first gusset piece of 100-；The second gusset piece of 200-.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.
The component for the embodiment of the present invention for usually describing and showing in attached drawing here can be with a variety of different configurations
To arrange and design.Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present invention of protection is sought, but is merely representative of selected embodiment of the invention.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
Fig. 1 is the schematic diagram of the main member of the biaxial hinge of embodiment according to the present invention.Fig. 2 is according to the present invention
The helical gear schematic diagram of first intermediary's helical gear and the second intermediary of the biaxial hinge of embodiment.Fig. 3 is reality according to the present invention
Apply the schematic diagram of the biaxial hinge of example.Fig. 4 is the schematic diagram of the torsion gasket of an embodiment according to the present invention.Fig. 5 is basis
The schematic diagram of the torsion gasket of another embodiment of the present invention.
A kind of biaxial hinge is provided according to the first aspect of the invention, as shown in Figure 1 to Figure 3, according to the double of the present embodiment
Pivot hinge includes the first transmission shaft lever 1, second driving shaft bar 2, first intermediary's helical gear 3, second intermediary's helical gear 4, support base
5, the first torsion gasket 60, the second torsion gasket 61, the first torsion spring group 81 and the second torsion spring group 82 and two fastening spiral shells
Mother 9.
Hereinafter, the structure and movement of the above-mentioned component of the biaxial hinge according to the present embodiment will be described in detail.
As shown in Figure 1 to Figure 3, in embodiment, the first transmission shaft lever 1 can be formed with the first helical gear 11, here helical teeth
Wheel (also have referred to as helical gear) refers to that oblique circular cylinder gear (refers to oblique in this specification and independent alternative and subordinate scheme
Gear is it is to be understood that subsequent repeat no more), the first helical gear 11 can have the first normal plane reference circle (here, normal plane point
The concept of degree circle can be understood as the concept of pitch circle in no displacement, can refer to such conceptual understanding below) and the
One rotation axis, and second driving shaft bar 2 can be formed with the second helical gear 21 in the position opposite with the first helical gear 11, second
Helical gear 21 can have the second normal plane reference circle and the second rotation axis.First rotation is parallel with the second rotation axis to be set
It sets, the first transmission shaft lever 1 and second driving shaft bar 2 can be rotated respectively around first rotation and the second rotation axis.In addition,
In embodiment, the first transmission shaft lever 1 and second driving shaft bar 2 can extend through the first axle that will be described below support base 5
Hole 51 and the second axis hole 52, will be described in detail below.
As shown in Figure 1 to Figure 3, in embodiment, by the first helical gear 11 and the second helical gear 21 respectively with first in
The transmission of the first transmission shaft lever 1 and second driving shaft bar 2 is realized in the intermeshing of Jie's helical gear 3 and second intermediary's helical gear 4.It is logical
Cross the first intermediary's helical gear 3 and second intermediary's helical gear 4 and the first helical gear 11 and second of embodiment according to the present invention
Helical gear 21, can not only change the transmission direction of the first transmission shaft lever 1 and second driving shaft bar 2, but also can change
The transmission ratio of one transmission shaft lever 1 and second driving shaft bar 2, specific implementation are described as follows.
As shown in Figure 1 to Figure 3, in embodiment, first intermediary's helical gear 3 and second intermediary's helical gear 4 can be respectively provided with
Third normal plane reference circle and the 4th normal plane reference circle, the radius of third normal plane reference circle are R1, the radius of the 4th normal plane reference circle
For R2.First intermediary's helical gear 3 can be engaged with the first helical gear 11, and second intermediary's helical gear 4 can be engaged with the second helical gear 21.
In addition, in embodiment, first intermediary's helical gear 3 and second intermediary's helical gear 4 can have common third rotation
Axes O, third rotation axis O is perpendicular to the plane determined by first rotation and the second rotation axis.In embodiment,
The hand of spiral of one helical gear 11 is identical as the hand of spiral of the second helical gear 21, but the helical angle of the gear teeth of the first helical gear 11
Absolute value and the absolute value of helical angle of the gear teeth of the second helical gear 21 differ.In addition, in embodiment, the first helical gear 11
Tooth top diameter of a circle it is equal with the tooth top diameter of a circle of the second helical gear 21, the slimming of so achievable notebook hinge and
The simplification of processing.
It should be noted that in embodiments herein, for example, the outside circle of first intermediary's helical gear 3 is straight
The tooth top diameter of a circle of diameter and second intermediary's helical gear 4 can be equal to each other, and the tooth top diameter of a circle of the first helical gear 11 and
The tooth top diameter of a circle of two helical gears 21 can also be equal to each other, the slimming of so achievable notebook hinge and processing it is simple
Change, but due to as described above, the gear teeth of the absolute value of the helical angle of the gear teeth of the first helical gear 11 and the second helical gear 21
The absolute value of helical angle differ, therefore the first helical gear 11 and the second helical gear 21 respectively with first intermediary's helical gear 3 and
After the engagement of two intermediary's helical gears 4, the first helical gear 11 and the velocity of rotation of the second helical gear 21 can be made to differ, that is, so set
Meter enables to the first transmission shaft lever 1 and second driving shaft bar 2 to join with angular speed different from each other, reciprocal direction of rotation
It rotates, while is can also ensure that in the first helical gear 11 and the second helical gear 21 and first intermediary's helical gear 3 and second dynamicly
The ease of processing and hinge of Jie's helical gear 4 are most thin.
In addition, if the tooth top diameter of a circle of the first helical gear 11 and the tooth top of the second helical gear 21 can be realized only simultaneously
Diameter of a circle is equal, then being easier property of processing and hinge can also be made thinning.
In addition it is also possible to understand, in embodiments herein, it is clear that due to the spiral of the gear teeth of the first helical gear 11
The absolute value of the helical angle of the gear teeth of the absolute value at angle and the second helical gear 21 differs, then accordingly, first intermediary's helical gear 3
The absolute value of the helical angle of the gear teeth of the absolute value of the helical angle of the gear teeth and second intermediary's helical gear 4 also differs.
In embodiment, first intermediary's helical gear 3 and second intermediary's helical gear 4 can be formed as one, such as can be passed through
The mesomerism gear of one entirety is processed into first intermediary's helical gear 3 and second intermediary's helical gear 4 by the mode of machining
This two parts is connected again, can also by way of machining or powder metallurgy integrally formed first intermediary helical gear 3 and the
Two intermediary's helical gears 4 are not limited to first as long as can be formed as one first intermediary's helical gear 3 and second intermediary's helical gear 4
The forming mode of intermediary's helical gear 3 and second intermediary's helical gear 4.
Using the biaxial hinge of embodiment according to the present invention as described above, in the spiral of the gear teeth of the first helical gear 11
The absolute value of the helical angle of the gear teeth of the absolute value at angle and the second helical gear 21 not etc. in the case where, the first transmission shaft lever can be made
1 and second driving shaft bar 2 rotated in linkage with angular speed different from each other, reciprocal direction of rotation.That is, example
Such as, when the first transmission shaft lever 1 rotates clockwise the first predetermined angular, rotation makes a reservation for second driving shaft bar 2 with first counterclockwise
The second different predetermined angular of angle.
In an embodiment according to the present invention, first intermediary's helical gear 3 can it is fan-shaped and have nibbled with the first helical gear 11
The first arch section 31 closed, similarly, second intermediary's helical gear 4 can also be fan-shaped and have and engage with the second helical gear 21
Second arch section 41.As depicted in figs. 1 and 2, in embodiment, when observing along third rotation axis, the first intermediary is oblique
Gear 3 and second intermediary's helical gear 4 are in semicircular shape, in this case, the first arch section 31 and the second arc
Part 41 is semicircular arc, however without being limited thereto, requires and improves in first intermediary's helical gear 3 and second from meeting to engage
The rigidity of Jie's helical gear 4 and the angle of intensity are set out, can be for example from loss of weight and save the cost and the angle of reduction volume, can
Such as make the sector of first intermediary's helical gear 3 and second intermediary's helical gear 4 in corresponding center of circle angle less than 180 degree.
In addition, in embodiment, by first intermediary's helical gear 3 and second intermediary's helical gear 4 make the first transmission shaft lever 1 with
Mode of the relative rotation angle of second driving shaft bar 2 between 0 degree to 360 degree is rotated, wherein first intermediary's helical gear 3
And second intermediary's helical gear 4 rotation angle at 0 degree between 180 degree, relative rotation angle is defined as the first transmission shaft lever 1
Rotation angle and second driving shaft bar 2 rotation angle and.Biaxial hinge with above structure is applied to such as pen
When remembering the portable electronic device of this computer etc., particularly advantageous effect will be generated.It is of course apparent that above-mentioned also may be selected be less than
It is applied within these angular ranges.
In addition, as described in aforementioned, in embodiment, the tooth top diameter of a circle of the first helical gear 11 and the second helical gear 21
Tooth top diameter of a circle can be equal, using this feature, it is also possible that realizing that hinge is most thin, easily most to adapt to laptop etc. just
The requirement of the slimming of portable electronic apparatus.
In addition, in embodiment, for example, the first helical gear 11, the second helical gear 21, first intermediary's helical gear 3 and second
Intermediary's helical gear 4 can be helical gear.As long as can be realized the transmission demand of the first transmission shaft lever 1 and second driving shaft bar 2, no
Concrete restriction the first helical gear 11, the second helical gear 21, first intermediary's helical gear 3 and second intermediary's helical gear 4 tooth profiles
It is involute or other curve shapes.In addition, in embodiment, the tooth top diameter of a circle of first intermediary's helical gear 3 and
The tooth top diameter of a circle of two intermediary's helical gears 4 can be in equal and/or first intermediary's helical gear 3 tooth top diameter of a circle and second
The tooth top diameter of a circle of Jie's helical gear 4 can be equal, enables to most easily realize that hinge is most thin, portable to adapt to laptop etc.
The requirement of the slimming of formula electronic device.
In addition, the structure and movement of the other component of biaxial hinge hereinafter will be described in detail.
As shown in figure 3, in embodiment, support base 5 can have the first shaft hole 51 for being spaced apart setting, the second axis hole 52
And the installation space 53 between first shaft hole 51 and the second axis hole 52, the first transmission shaft lever 1 and second driving shaft bar 2 can
To extend through first shaft hole 51 and the second axis hole 52, and first intermediary's helical gear 3 and second intermediary's helical gear 4 are installed in
In installation space 53, such support base 5 can be to the first transmission shaft lever 1, second driving shaft bar 2, first intermediary's helical gear 3 and
Two intermediary's helical gears 4 provide the effect of support and positioning.First transmission shaft lever 1 and second driving shaft bar 2 are respectively in first shaft hole
51 and second axis hole 52 be exposed to installation space 53, first intermediary's helical gear 3 and second intermediary's helical gear 4 are being installed
It is engaged respectively with the helical gear on the helical gear and second driving shaft bar 2 of the first transmission shaft lever 1 in space 53.In addition, in embodiment
In, fixed pin (not shown) can be inserted in the wall surface of support base 5, in first intermediary's helical gear 3 and second intermediary's helical gear 4
When being mounted in installation space 53,4 sets of first intermediary's helical gear 3 and second intermediary's helical gear are on fixed pin, and the first intermediary
Helical gear 3 and second intermediary's helical gear 4 can be rotated by third rotation axis of the central axis of fixed pin.
For example, in embodiment, the first transmission shaft lever 1 and second driving shaft bar 2 can be run through first and are inserted into support base 5
First shaft hole 51 and the second axis hole 52 in, be then formed into integrated first intermediary's helical gear 3 and second intermediary's helical gear 4
It is placed on specific position in the installation space 53 of support base 5, and is covered in fixed pin (not shown) as described above, then
Engagement is contacted with the first helical gear 11 and the second helical gear 21, the first transmission shaft lever 1, second driving shaft bar 2, first is achieved
The assembly of intermediary's helical gear 3 and second intermediary's helical gear 4 and scheduled intermeshing transmission.
As shown in Figure 3 and Figure 4, in embodiment, multiple first torsion gaskets 60 and multiple second torsion gaskets 61, first
Torsion spring group 81 and the second torsion spring group 82 and two fastening nuts 9 collectively serve as torque force regulating mechanism.
Specifically, multiple first torsion gaskets 60 and multiple second torsion gaskets 61 can be worn in a manner of overlieing one another
In the first transmission shaft lever 1 and second driving shaft bar 2.In embodiment shown in figs. 3 and 4, the first torsion gasket 60 and
Two torsion gaskets 61 are alternately arranged, and multiple first torsion gaskets 60 prolong along the first transmission shaft lever 1 and second driving shaft bar 2
It stretches direction to be arranged with being separated from each other, and multiple second torsion gaskets 61 are equally along the first transmission shaft lever 1 and second driving shaft
The extending direction of bar 2 is arranged with being separated from each other, and the second torsion gasket 61 can be with the first transmission shaft lever 1 and second driving shaft bar
2 synchronous rotaries.
Then, as shown in figure 3, the first torsion spring group 81 and the second torsion spring group 82 can be arranged in the first transmission shaft respectively
Bar 1 and second driving shaft bar 2, for changing the torsion to be applied to the first transmission shaft lever 1 and the second driving shaft bar 2.Example
Such as, the first torsion spring group 81 is identical with the structure of the second torsion spring group 82, is only said by taking the first torsion spring group 81 as an example herein
It is bright.Specifically, the first torsion spring group 81 may include for example multiple disc spring pieces, i.e., by multiple disc spring pieces Close stack ground group each other
It is fitted together, to provide rotary torsion with to the first transmission shaft lever 1, that is to say, that in an embodiment of the present invention, by the
One torsion spring group 81 and the second torsion spring group 82 are used as main torsion source.
Then, as shown in figure 3, two fastening nuts 9 can be screwed in the first transmission shaft lever 1 and second driving shaft bar respectively
On 2 end, to multiple first torsion gaskets 60 and the second torsion gasket 61 and the first torsion spring group 81 and the second torsion spring
82 pressure of group.As an example, specified or desired torque level can be screwed into fastening nut 9 by tools such as spanners.
Furthermore, that is to say, that two fastening nuts 9 are screwed in the end of the first transmission shaft lever 1 and second driving shaft bar 2 respectively
In portion, thus correspondingly to the first torsion spring group 81, the second torsion spring group 82 and multiple first torsion gaskets 60 and the second torsion
61 applied force of gasket, to apply axial hold down to the first transmission shaft lever 1, second driving shaft bar 2, so that multiple first torsion pads
The generation frictional force between the two of piece 60 and the arbitrary neighborhood in multiple second torsion gaskets 61.
Furthermore, it is possible to add washer with corresponding torsion spring group in fastening nut 9.
In the embodiment illustrated in figure 4, each of multiple second torsion gaskets 61 have non-circular hole 611, first
Transmission shaft lever 1 and at least part of second driving shaft bar 2 are formed as non-circular shaft portion, such non-circular shaft portion and non-circular hole
611 cooperations so that the first transmission shaft lever 1 and multiple second torsion gasket, 61 synchronous rotaries and second driving shaft bar 2 with it is multiple
Second torsion gasket, 61 synchronous rotary, i.e. the first transmission shaft lever 1 and second driving shaft bar 2 be able to drive its corresponding multiple second
Torsion gasket 61 rotates.
As long as torsion gasket can be realized the adjustment of the torsion to the first transmission shaft lever and second driving shaft bar, does not limit and mention
For the concrete form of the mechanism of torsion.
In addition, multiple torsion gaskets may be formed as other forms, it is described as follows.In another reality of torsion gasket
It applies in example, as shown in figure 5, each of multiple torsion gasket 6' may include set axle portion 61', folder axle portion 62' and interconnecting piece
63'.Covering axle portion 61' has set axis hole, the set of one of the first transmission shaft lever 1 and second driving shaft bar 2 through set axle portion 61'
Axis hole；Pressing from both sides axle portion 62' has a pair of curved arm, and a pair of curved arm clamps another in the first transmission shaft lever 1 and second driving shaft bar 2
The ora terminalis of one, a pair of curved arm is separated from each other, and folder axle portion 62' flexibly clamps the first transmission shaft lever 1 and second driving shaft bar 2
The other of；Interconnecting piece 63' connector sleeve axle portion 61' and folder axle portion 62'.Multiple torsion gasket 6' of this form have each other
Identical size and shape so can choose and increase or decrease torsion gasket 6', to adjust the first transmission shaft lever 1 and second
Torsion needed for transmission shaft lever 2.
In addition, the folder axle portion 62' of the only side of multiple torsion gasket 6' has opening in embodiment shown in fig. 5,
And it covers axle portion 61' and does not have opening.However it is without being limited thereto, the two sides of torsion gasket can be each formed with the folder axis with opening
Portion, to apply radial packing to both the first transmission shaft lever 1 and second driving shaft bar 2.
In addition, first torsion gasket 60 and the second torsion gasket 61 pass through axis in embodiment as shown in Figure 3 and Figure 4
To acting on the first transmission shaft lever 1 and second driving shaft bar 2, and in the embodiment as shown in fig.5, multiple torsion gasket 6' are logical
It crosses the mode radially coated and acts on the first transmission shaft lever 1 and second driving shaft bar 2.
In addition, biaxial hinge, which may also include at least one both ends difference elastic tight, coats the first transmission shaft lever and the second biography
The plate of moving axis bar coats torsion elements.However, biaxial hinge can only include that plate coats torsion elements according to actual design needs,
Instead of above-mentioned torsion gasket, torsion spring group and fastening nut.
That is, in embodiment, biaxial hinge may include multiple torsion gaskets, plate cladding torsion elements and torsion
Any one or combination of spring group and fastening nut.Specifically, according to actual design needs, biaxial hinge may include multiple torsion
Any one or combination of gasket, plate cladding torsion elements and torsion spring group and fastening nut.
Hereinafter, generated beneficial to effect when will describe biaxial hinge as described above applied to portable electronic device
Fruit.
In addition, providing a kind of portable electronic device according to the second aspect of the invention comprising twin shaft as described above
Hinge, first shell and second shell.As shown in figures 1 and 3, the first transmission shaft lever 1 of biaxial hinge with 9 institute of fastening nut
In side, opposite side, which is permanently connected, the first gusset piece 100, and the second driving shaft bar 2 of biaxial hinge and fastening nut
The opposite side in 9 places side is permanently connected and has the second gusset piece 200.Although first shell and second shell is not shown in the figure
Body, it will be appreciated that in embodiment, first shell is connected to the first transmission shaft lever 1 via the first gusset piece 100, and second
Shell is connected to second driving shaft bar 2 via the second gusset piece 200.
In addition, portable electronic device as described above can be realized 360 degree of folding.Specifically, first shell and
The orientation of two shells include: first shell and second shell facing with each other 0 degree in face of closure, first shell and second shell that
This is in 180 degree is open and flat and first shell and second shell away form one another 360 degree are back to closure.For example, in first shell and
Second shell be in 360 degree back to be closed when, the free end and second shell opposite with biaxial hinge of first shell with it is double
The opposite free end of pivot hinge offsets one from another.
That is, passing through the helical angle of the gear teeth of the first helical gear 11 and the wheel of the second helical gear 21 according to embodiment
The helical angle of tooth differs, and then makes the first transmission shaft lever 1 and second driving shaft bar 2 with angular speed different from each other, opposite each other
Direction of rotation rotate in linkage, the first shell and second shell for being so equal to portable electronic device are staggered.
For example, portable electronic device be laptop in the case where, first shell can be keyboard case, second
Shell can be display housing, be in 360 degree of shapes back to closure in the keyboard case and display housing of laptop
Under state, operator can offset one from another according to the free end of keyboard case and the free end of display, and easily operating makes key
Disk shell and display housing generate rotation.
For example, in the case where portable electronic device is folding cell phone or tablet device, first shell and second shell
It can be display housing, when first shell and second shell are in the open and flat state of 180 degree, first shell and second
Biggish display screen can be collectively formed in shell, and for example, rolls in 360 degree back to when being closed in first shell and second shell
Folded mobile phone or the portable electronic device of tablet device can provide relatively small display screen, and when needing to change this state,
Operator can offset one from another according to the free end of first shell and the free end of second shell, and easily operating makes first shell
Body and second shell generate rotation.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of biaxial hinge, which is characterized in that the biaxial hinge includes:
First transmission shaft lever, is formed with the first helical gear, and first helical gear has first rotation；
Second driving shaft bar is formed with the second helical gear in the position opposite with first helical gear；Second helical gear
With the second rotation axis；The first rotation is arranged in parallel with second rotation axis, and
First intermediary's helical gear and second intermediary's helical gear, first intermediary helical gear are engaged with first helical gear, institute
It states second intermediary's helical gear to engage with second helical gear, first intermediary helical gear and the second intermediary helical teeth wheel shape
It is integrally formed and has common third rotation axis, the third rotation axis is perpendicular to by the first rotation and institute
State the plane that the second rotation axis determines；
The hand of spiral of the first helical gear gear teeth is identical as the hand of spiral of the described second helical gear gear teeth, and described
The absolute value of the helical angle of the absolute value of the helical angle of the first helical gear gear teeth and the described second helical gear gear teeth differs；
By being meshed respectively with first intermediary helical gear and second intermediary helical gear, make first transmission shaft lever
It is rotated in linkage with the second driving shaft bar with angular speed different from each other, reciprocal direction of rotation.
2. biaxial hinge according to claim 1, which is characterized in that the helical gear tooth top diameter of a circle of the first intermediary
It is equal with the helical gear tooth top diameter of a circle of second intermediary, the first helical gear tooth top diameter of a circle and described second
Helical gear tooth top diameter of a circle is equal.
3. biaxial hinge according to claim 1, which is characterized in that
The helical gear tooth top diameter of a circle of first intermediary is equal with the helical gear tooth top diameter of a circle of second intermediary.
4. biaxial hinge according to claim 1, which is characterized in that
First intermediary helical gear is fan-shaped and has the first arch section engaged with first helical gear, and described second
Intermediary's helical gear is fan-shaped and has the second arch section engaged with second helical gear.
5. biaxial hinge according to claim 4, which is characterized in that
First transmission shaft lever and the second driving shaft bar are revolved with mode of the relative rotation angle between 0 degree to 360 degree
Turn, the helical gear rotation angle of first intermediary helical gear and second intermediary at 0 degree between 180 degree, it is described relatively
Rotation angle be defined as the rotation angle of first transmission shaft lever and the rotation angle of the second driving shaft bar and.
6. biaxial hinge according to claim 1, which is characterized in that the first helical gear tooth top diameter of a circle and institute
It is equal to state the second helical gear tooth top diameter of a circle.
7. biaxial hinge according to any one of claim 1 to 6, which is characterized in that
The biaxial hinge further include:
Support base has the first shaft hole for being spaced apart setting, the second axis hole and between the first shaft hole and second axis
Installation space between hole, first transmission shaft lever and the second driving shaft bar extend through the first shaft hole and described
Second axis hole, first intermediary helical gear and second intermediary helical gear are installed in the installation space；
Multiple torsion gaskets are arranged in the first transmission shaft lever described in simultaneously elastomeric overmold and described second in a manner of overlieing one another and pass
Moving axis bar adjusts the torsion of first transmission shaft lever and the second driving shaft bar by adjusting the quantity of the torsion gasket
Power；And/or
Distinguish the plate cladding that elastic tight coats first transmission shaft lever and the second driving shaft bar at least one both ends
Torsion elements；And/or
First torsion spring group and the second torsion spring group and two fastening nuts, are arranged in first transmission shaft lever and institute respectively
Second driving shaft bar is stated, for changing the torsion to be applied to first transmission shaft lever and the second driving shaft bar；It is described
Two fastening nuts are screwed in respectively on the end of first transmission shaft lever and the second driving shaft bar, to the multiple
Torsion gasket and the first torsion spring group and the second torsion spring group press.
8. biaxial hinge according to claim 7, which is characterized in that each of the multiple torsion gasket includes:
Axle portion is covered, there is set axis hole, one of first transmission shaft lever and the second driving shaft bar run through the set axis
The set axis hole in portion；
Axle portion is pressed from both sides, there is a pair of curved arm, the pair of bend arm clamps first transmission shaft lever and the second driving shaft
The ora terminalis of the other of bar, the pair of bend arm is separated from each other；And
Interconnecting piece connects the set axle portion and the folder axle portion.
9. a kind of portable electronic device, which is characterized in that including first shell, second shell and according to claim 1 in 8
Described in any item biaxial hinges；
The first shell is connected to first transmission shaft lever via the first gusset piece, and the second shell is via the second connection
Plate is connected to the second driving shaft bar.
10. portable electronic device according to claim 9, which is characterized in that
The orientation of the first shell and the second shell includes: that the first shell and the second shell are facing with each other
0 degree is in open and flat 180 degree and the first shell and described the in face of closure, the first shell and the second shell each other
Two shells away form one another 360 degree, back to closure, are in 360 degree back to closure in the first shell and the second shell
When, the free end opposite with the biaxial hinge of the first shell and the second shell it is opposite with the biaxial hinge
Free end offset one from another.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306408.4A CN109882498B (en) | 2019-04-16 | 2019-04-16 | Double-shaft hinge and portable electronic device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306408.4A CN109882498B (en) | 2019-04-16 | 2019-04-16 | Double-shaft hinge and portable electronic device |
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| CN109882498A true CN109882498A (en) | 2019-06-14 |
| CN109882498B CN109882498B (en) | 2024-03-12 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109882498B (en) | 2024-03-12 |
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