阅读说明：本技术 双轴铰链模块与可携式电子装置 (Double-shaft hinge module and portable electronic device ) 是由 许家豪 陈有裕 李新弘 于 2020-03-12 设计创作，主要内容包括：本发明提供一种双轴铰链模块与可携式电子装置,所述双轴铰链模块包括第一转轴、第一主动齿轮、第二转轴、第二主动齿轮、一对从动齿轮以及多个连杆。第一主动齿轮设置于第一转轴,第二主动齿轮设置于第二转轴,从动齿轮耦接于第一主动齿轮与第二主动齿轮之间。连杆分别枢接于第一主动齿轮与其中一从动齿轮之间、枢接于从动齿轮之间、枢接于其中另一从动齿轮与第二主动齿轮之间,以使相啮合的齿轮的中心距离保持固定。第一转轴与第二转轴的相对距离随着从动齿轮相对于第一主动齿轮、第二主动齿轮的啮合位置不同而改变。(The invention provides a double-shaft hinge module and a portable electronic device. The first driving gear is arranged on the first rotating shaft, the second driving gear is arranged on the second rotating shaft, and the driven gear is coupled between the first driving gear and the second driving gear. The connecting rods are respectively pivoted between the first driving gear and one of the driven gears, between the driven gears and between the other driven gear and the second driving gear, so that the center distance of the engaged gears is kept fixed. The relative distance between the first rotating shaft and the second rotating shaft is changed along with the different meshing positions of the driven gear relative to the first driving gear and the second driving gear.)

1. A dual axis hinge module, comprising:

a first rotating shaft;

the first driving gear is arranged on the first rotating shaft;

a second rotating shaft;

the second driving gear is arranged on the second rotating shaft;

a pair of driven gears coupled between the first driving gear and the second driving gear; and

a plurality of connecting rods respectively pivoted between the first driving gear and one of the driven gears, between the pair of driven gears, and between the other driven gear and the second driving gear, so as to respectively keep the center distance between the first driving gear and one of the driven gears, the center distance between the pair of driven gears, and the center distance between the other driven gear and the second driving gear constant,

the relative distance between the first rotating shaft and the second rotating shaft is changed along with the different meshing positions of the pair of driven gears relative to the first driving gear and the second driving gear.

2. The dual-axis hinge module as claimed in claim 1, wherein the first driving gear is coaxially disposed and rotates synchronously with the first shaft, the second driving gear is coaxially disposed and rotates synchronously with the second shaft, and the first shaft and the second shaft rotate synchronously with each other via the first driving gear, the pair of driven gears, and the second driving gear.

3. The biaxial hinge module of claim 1, wherein a rotational axis of the first driving gear, a rotational axis of the second driving gear, and a rotational axis of the pair of driven gears are parallel to each other.

4. The biaxial hinge module of claim 1, wherein the rotational axis of the first driving gear and the rotational axis of the second driving gear form a first plane and the rotational axes of the pair of driven gears form a second plane, the second plane being oblique with respect to the first plane.

5. The dual-axis hinge module of claim 1, further comprising a limiting member having at least one limiting groove, wherein the first rotating shaft and the second rotating shaft are parallel to each other and penetrate through the limiting groove of the limiting member.

6. The dual-axis hinge module as claimed in claim 5, wherein the limiting member further has a receiving groove, and the first driving gear, the second driving gear and the pair of driven gears are located in the receiving groove.

7. The dual-axis hinge module of claim 1, further comprising a reset mechanism disposed between the first and second shafts, the reset mechanism being configured to drive the first and second shafts to be in one of the states when the first and second shafts are in the plurality of states due to the change of the relative distance.

8. The dual-axis hinge module of claim 7, wherein the return mechanism includes at least one spring connected between the first and second shafts.

9. A portable electronic device, comprising:

a first body;

a second body;

a dual axis hinge module comprising:

the first rotating shaft is assembled on the first machine body;

the first driving gear is arranged on the first rotating shaft;

the second rotating shaft is assembled on the second machine body;

the second driving gear is arranged on the second rotating shaft;

a pair of driven gears coupled between the first driving gear and the second driving gear; and

a plurality of connecting rods respectively pivoted between the first driving gear and one of the driven gears, between the pair of driven gears, and between the other driven gear and the second driving gear, so as to respectively keep the center distance between the first driving gear and one of the driven gears, the center distance between the pair of driven gears, and the center distance between the other driven gear and the second driving gear constant,

the relative distance between the first rotating shaft and the second rotating shaft changes along with different meshing positions of the pair of driven gears relative to the first driving gear and the second driving gear, and when the first machine body and the second machine body are far away from each other along with the first rotating shaft and the second rotating shaft, an accommodating space is formed between the first machine body and the second machine body.

10. The portable electronic device of claim 9, further comprising an accessory disposed in the accommodating space and configured to support the first body and the second body so as to maintain a state in which the first rotating shaft and the second rotating shaft are away from each other.

11. The portable electronic device of claim 9, wherein the first driving gear and the first rotating shaft are coaxially disposed and rotate synchronously, the second driving gear and the second rotating shaft are coaxially disposed and rotate synchronously, and the first rotating shaft and the second rotating shaft rotate synchronously through the first driving gear, the pair of driven gears, and the second driving gear.

12. The portable electronic device of claim 9, wherein the rotation axis of the first driving gear, the rotation axis of the second driving gear, and the rotation axes of the pair of driven gears are parallel to each other.

13. The portable electronic device of claim 9, wherein the rotation axis of the first driving gear and the rotation axis of the second driving gear form a first plane, and the rotation axes of the pair of driven gears form a second plane, the second plane being inclined with respect to the first plane.

14. The portable electronic device of claim 9, wherein the dual-axis hinge module further comprises a limiting member having at least one limiting groove, and the first rotating shaft and the second rotating shaft are parallel to each other and penetrate through the limiting groove of the limiting member.

15. The portable electronic device of claim 14, wherein the retaining member further comprises a receiving slot, and the first driving gear, the second driving gear, and the pair of driven gears are located in the receiving slot.

16. The portable electronic device of claim 9, wherein the dual-axis hinge module further comprises a reset mechanism disposed between the first rotating shaft and the second rotating shaft, and the reset mechanism is configured to drive the first rotating shaft and the second rotating shaft to be in one of the states when the first rotating shaft and the second rotating shaft form a plurality of states due to the change of the relative distance.

17. The portable electronic device of claim 16, wherein the return mechanism comprises at least one spring coupled between the first and second shafts.

Technical Field

The present disclosure relates to hinge modules and electronic devices, and particularly to a dual-axis hinge module and a portable electronic device.

Background

In the conventional portable electronic device, such as a notebook computer or a mobile phone, the display screen and the host can be relatively rotated to be opened and closed through the hinge module, so that the display screen and the host can be positioned at various different angles to perform corresponding operations, and the display screen and the host can be further folded into a flat state at a large angle, such as 360 degrees, so as to provide another deformed use pattern.

In addition, with the change of the use state, an additional accessory is further disposed between the display screen and the host to expand the functions of the portable electronic device. However, in the conventional hinge module, the distance between the rotating shafts is fixed, so that the hinge module can only cope with a general use state, and once an additional fitting is required to be installed as described above, the fixed hinge module may cause a space limitation. That is, the hinge module with fixed wheelbase is difficult to meet the requirement of additional accessories when the corresponding relationship of the machine body space is fixed.

Disclosure of Invention

The invention provides a double-shaft hinge module and a portable electronic device, wherein the double-shaft hinge module can provide an adjustable shaft distance of a rotating shaft and enables different bodies of the portable electronic device to synchronously rotate according to the adjustable shaft distance.

The invention discloses a biaxial hinge module which comprises a first rotating shaft, a first driving gear, a second rotating shaft, a second driving gear, a pair of driven gears and a plurality of connecting rods. The first driving gear is arranged on the first rotating shaft, the second driving gear is arranged on the second rotating shaft, and the driven gear is coupled between the first driving gear and the second driving gear. The connecting rods are respectively pivoted between the first driving gear and one of the driven gears, between the driven gears and between the other driven gear and the second driving gear, so that the center distance of the engaged gears is kept fixed. The relative distance between the first rotating shaft and the second rotating shaft is changed along with the different meshing positions of the driven gear relative to the first driving gear and the second driving gear.

The invention relates to a portable electronic device, which comprises a first machine body, a second machine body and a double-shaft hinge module. The double-shaft hinge module comprises a first rotating shaft, a first driving gear, a second rotating shaft, a second driving gear, a pair of driven gears and a plurality of connecting rods. The first rotating shaft is assembled on the first machine body, and the second rotating shaft is assembled on the second machine body. The first driving gear is arranged on the first rotating shaft, the second driving gear is arranged on the second rotating shaft, and the driven gear is coupled between the first driving gear and the second driving gear. The connecting rods are respectively pivoted between the first driving gear and one of the driven gears, between the driven gears and between the other driven gear and the second driving gear, so that the center distance of the engaged gears is kept fixed. The relative distance between the first rotating shaft and the second rotating shaft changes along with the different meshing positions of the driven gear relative to the first driving gear and the second driving gear, and when the first machine body and the second machine body are far away from each other along with the first rotating shaft and the second rotating shaft, an accommodating space is formed between the first machine body and the second machine body.

In an embodiment of the invention, the portable electronic device further includes an accessory disposed in the accommodating space, and the accessory is configured to support the first body and the second body so as to maintain a state in which the first rotating shaft and the second rotating shaft are away from each other.

In an embodiment of the invention, the first driving gear and the first rotating shaft are coaxially disposed and rotate synchronously, the second driving gear and the second rotating shaft are coaxially disposed and rotate synchronously, and the first rotating shaft and the second rotating shaft rotate synchronously through the first driving gear, the driven gear and the second driving gear.

In an embodiment of the invention, the rotation axis of the first driving gear, the rotation axis of the second driving gear, and the rotation axis of the driven gear are parallel to each other.

In an embodiment of the invention, the rotation axis of the first driving gear and the rotation axis of the second driving gear form a first plane, and the rotation axis of the driven gear forms a second plane, and the second plane is inclined with respect to the first plane.

In an embodiment of the invention, the biaxial hinge module further includes a limiting member having at least one limiting groove, and the first rotating shaft and the second rotating shaft are parallel to each other and penetrate through the limiting groove of the limiting member.

In an embodiment of the invention, the position-limiting member further has an accommodating groove, and the first driving gear, the second driving gear and the driven gear are located in the accommodating groove.

In an embodiment of the invention, the biaxial hinge module further includes a reset mechanism disposed between the first rotating shaft and the second rotating shaft. When the first rotating shaft and the second rotating shaft form various states due to the change of the relative distance, the reset mechanism is used for driving the first rotating shaft and the second rotating shaft to be in one state.

In an embodiment of the invention, the reset mechanism includes at least one spring connected between the first rotating shaft and the second rotating shaft.

Based on the above, the double-axis hinge module is provided with the gear set between the first rotating shaft and the second rotating shaft, wherein the first driving gear of the gear set is arranged on the first rotating shaft, the second driving gear is arranged on the second rotating shaft, and the driven gear of the gear set is coupled between the first driving gear and the second driving gear, so that the first rotating shaft and the second rotating shaft can achieve the effect of synchronous rotation through the gear set. Furthermore, the connecting rod is respectively pivoted on any two gears which are meshed with each other of the gear set, so that the two gears which are meshed with each other can keep a fixed center distance in the process of synchronous rotation. Therefore, the gear set can adjust the relative distance between the first rotating shaft and the second rotating shaft according to requirements under the limitation of the connecting rods.

Therefore, for the dual-axis hinge module or for the portable electronic device using the dual-axis hinge module, the relative distance between the rotating shafts or the relative distance between the bodies can be adjusted accordingly, thereby providing additional space utilization, and allowing the space vacated by the bodies to accommodate other additional accessories.

Drawings

Fig. 1 is a partial schematic view of a portable electronic device according to an embodiment of the invention;

FIG. 2 is an exploded view of the dual axis hinge module of FIG. 1;

fig. 3A and 3B are side views of the portable electronic device in different states, respectively;

fig. 4 is a top view of a dual axis hinge module according to another embodiment of the present invention.

Description of the reference numerals

10 portable electronic device

100. 500 double-shaft hinge module

110. 510 first rotating shaft

111. 121 the shaft part

112. 122 support

120. 520 second rotating shaft

130. 530 limiting part

131. 132 limiting groove

133 a receiving groove

140 torsion member

200 first body

300 second body

400 parts

540 resetting mechanism

641 first sleeve

643 the second sleeve

d1, d2 relative distance

G1 first driving gear

G2 second driving gear

G3, G4 driven gear

K1, K2, K3 connecting rod

N1 first plane

N2 second plane

P1, P2 spacer

SP (SP-containing space)

X1, X2, X3, X4, rotation axis

t1, t2, t3 center distance

Detailed Description

Fig. 1 is a partial schematic view of a portable electronic device according to an embodiment of the invention. Fig. 2 is an exploded view of the dual axis hinge module of fig. 1. Referring to fig. 1 and fig. 2, in the present embodiment, the portable electronic device 10 includes a first body 200, a second body 300, and a dual-axis hinge module 100, wherein the dual-axis hinge module 100 includes a first rotating shaft 110, a first driving gear G1, a second rotating shaft 120, a second driving gear G2, a pair of driven gears G3, G4, and a plurality of links K1 to K3. The first shaft 110 includes a shaft 111 and a bracket 112, the bracket 112 is assembled to the first body 200, and the first driving gear G1 is disposed on the shaft 111. The second shaft 120 includes a shaft 121 and a bracket 122, the bracket 122 is assembled to the second body 300, and the second driving gear G2 is disposed on the shaft 121. The driven gears G3 and G4 are coupled between the first driving gear G1 and the second driving gear G2. The link K1 is pivotally connected between the first driving gear G1 and the driven gear G3, the link K2 is pivotally connected between the driven gears G3 and G4, and the link K3 is pivotally connected between the driven gear G4 and the second driving gear G2.

Further, the biaxial hinge module 100 further includes a limiting member 130, a pair of torsion members 140 and a plurality of spacers P1, P2, the limiting member 130 has a pair of limiting grooves 131, 132 corresponding to each other and a receiving groove 133 located between the limiting grooves 131, 132, the shaft portions 111 and 121 of the first rotating shaft 110 and the second rotating shaft 120 are respectively inserted through the shaft portions 131 and 132 and then abutted against the torsion member 140, so that the first driving gear G1, the second driving gear G2 and the driven gears G3 and G4 are accommodated in the accommodating groove 133, and are matched with the torsion member 140 through the spacers P1 and P2 (wherein a pair of spacers P1 is sleeved on the shaft portion 111 and makes the connecting rod K1 and the first driving gear G1 abut against each other, and a pair of spacers P2 is sleeved on the shaft portion 121 and makes the connecting rod K3 and the second driving gear G2 abut against each other), so as to generate the torque force required by the relative rotation of the first rotating shaft 110 and the second rotating shaft 120.

Accordingly, the first driving gear G1 and the first rotating shaft 110 are coaxially disposed and synchronously rotate, and the second driving gear G2 and the second rotating shaft 120 are coaxially disposed and synchronously rotate, so that the first rotating shaft 110 and the second rotating shaft 120 (also equivalent to the first body 200 and the second body 300) can synchronously rotate through the first driving gear G1, the driven gear G3, the driven gear G4 and the second driving gear G2, wherein the rotating shaft X1 of the first driving gear G1, the rotating shaft X2 of the second driving gear G2 and the rotating shafts X3 and X4 of the driven gears G3 and G4 are arranged in parallel, and wherein the first rotating shaft 120 and the second rotating shaft 120 are further limited by the limiting grooves 131 and 132. The shaft 111 and the first driving gear G1 are in inner and outer diameter interference fit, and the shaft 121 and the second driving gear G2 are in inner and outer diameter interference fit to achieve the desired synchronous driving effect.

Furthermore, fig. 3A and 3B are side views of the portable electronic device in different states, respectively, and a simple geometric schematic is provided in the same drawing for the relevant parameters, so as to facilitate identification of the geometric relationship between the relevant components. Referring to fig. 3A and 3B, the center distance of the gears engaged with each other is kept constant due to the arrangement of the connecting rods K1-K3. As shown in the figure, the center distance t1 between the rotation axis X1 of the first driving gear G1 and the rotation axis X3 of the driven gear G3 is kept constant during the relative movement of the first driving gear G1 and the driven gear G3 due to the presence of the link K1, which is also seen in the center distances t2 of the driven gears G3 and G4 and the center distance t3 between the driven gear G4 and the second driving gear G2. In this way, the biaxial hinge module 100 can be switched between the states shown in fig. 3A and fig. 3B, that is, the relative distances d1, d2 between the first rotating shaft 110 and the second rotating shaft 120 are changed according to the engaging positions of the driven gears G3, G4 with respect to the first driving gear G1 and the second driving gear G2 (wherein the relative distance d2 is greater than the relative distance d1), and the changing direction is along the extending direction of the limiting slots 131, 132.

Here, the rotation axis X1 of the first driving gear G1 and the rotation axis X2 of the second driving gear G2 form a first plane N1, the rotation axes X3 and X4 of the driven gears G3 and G4 form a second plane N2, and the second plane N2 is inclined with respect to the first plane N1. Here, the gear specifications for the above arrangement state are as follows: first, the first driving gear G1, the second driving gear G2, the driven gears G3, G4 have the same module (module), and for example, the module m of these gears is 0.25 or 0.3. Furthermore, the first driving gear G1 and the second driving gear G2 have the same pitch diameter (pitch diameter), the driven gears G3 and G4 have the same pitch diameter, and the pitch diameters of the first driving gear G1 and the second driving gear G2 are different from the pitch diameters of the driven gears G3 and G4. In addition, the present embodiment further limits the relative distances d1 and d2 between the first driving gear G1 and the second driving gear G2, so that the driven gears G3 and G4 do not sit on the first plane N1.

Referring to fig. 3B, when the first body 200 and the second body 300 are far away from each other along with the first rotating shaft 110 and the second rotating shaft 120, an accommodating space SP is formed between the first body 200 and the second body 300. In the present embodiment, the portable electronic device 10 further includes an accessory 400 that can be accommodated in or removed from the portable electronic device 10 according to requirements, and since the relative distances d1 and d2 between the first rotating shaft 110 and the second rotating shaft 120 are adjustable in the present embodiment, the accessory 400 can be accommodated in the accommodating space SP to follow the portable electronic device 10. Meanwhile, the application range of the portable electronic device 10 can be effectively expanded. For example, the portable electronic device is a dual-screen electronic device without a physical input module, that is, the bodies 200 and 300 are respectively configured with a display screen or even a touch screen, but no physical keys or physical keyboards are provided, so that the present embodiment can configure an additional accessory 400 (for example, a physical keyboard) between the bodies 200 and 300 when the portable electronic device is in the state shown in fig. 3B by changing the state of the dual-axis hinge module 100, thereby providing an additional operation means. Meanwhile, the fitting 400 located in the accommodating space SP can be used to support the first body 200 and the second body 300, so that the first rotating shaft 110 and the second rotating shaft 120 are maintained in a state of being away from each other as shown in fig. 3B.

It should be noted that the change of the relative distance between the bodies 200 and 300 shown in fig. 3A and 3B is only an example of the change trend, and does not limit the actual relevant size.

Fig. 4 is a top view of a dual axis hinge module according to another embodiment of the present invention. Referring to fig. 4, in the present embodiment, the biaxial hinge module 500 includes a first rotating shaft 510 (having a rotating shaft X1), a second rotating shaft 520 (having a rotating shaft X2), a limiting member 530, and other torsion members 140 and gear sets mentioned in the previous embodiments, wherein the gear set includes the first driving gear G1, the second driving gear G2, the driven gears G3, and G4 of the previous embodiments. The same components will not be described again.

Different from the above embodiments, the lengths of the first rotating shaft 510 and the second rotating shaft 520 of the present embodiment are lengthened to penetrate the limiting member 530, so as to facilitate the setting of the reset mechanism 540. Here, the reset mechanism 540 is disposed between the first rotating shaft 510 and the second rotating shaft 520, so that when the first rotating shaft 510 and the second rotating shaft 520 form a plurality of states due to the change of the relative distance, the reset mechanism 540 can be used to drive the first rotating shaft 510 and the second rotating shaft 520 to be in one state. In the present embodiment, the return mechanism 540 is a spring connected between the first rotating shaft 510 and the second rotating shaft 520, and drives the first rotating shaft 510 and the second rotating shaft 520 to approach each other. For example, referring to fig. 3A and 3B, when the dual-axis hinge module 500 is configured as shown in fig. 3B, when the fitting 400 is accommodated between the first rotating shaft 510 and the second rotating shaft 520, the presence and support of the fitting 400 can maintain the first rotating shaft 510 and the second rotating shaft 520 in a state of being away from each other, which is equivalent to extending and deforming the return mechanism 540 (spring) to accumulate elastic force, so that once the fitting 400 is removed from between the first body 200 and the second body 300, the elastic force of the return mechanism 540 (spring) can drive the first rotating shaft 510 and the second rotating shaft 520 to approach each other, and the state shown in fig. 3A is recovered.

In summary, in the above embodiments of the invention, the gear set is disposed between the first rotating shaft and the second rotating shaft, wherein the first driving gear of the gear set is disposed on the first rotating shaft, the second driving gear of the gear set is disposed on the second rotating shaft, and the driven gear of the gear set is coupled between the first driving gear and the second driving gear, so that the first rotating shaft and the second rotating shaft can rotate synchronously through the gear set. Furthermore, the connecting rod is respectively pivoted on any two gears which are meshed with each other of the gear set, so that the two gears which are meshed with each other can keep a fixed center distance in the process of synchronous rotation. Therefore, the gear set can adjust the relative distance between the first rotating shaft and the second rotating shaft according to requirements under the limitation of the connecting rods.

Moreover, the double-shaft hinge module can further drive the first rotating shaft and the second rotating shaft to be in one of the deformation states through a reset mechanism arranged between the first rotating shaft and the second rotating shaft, and further provides a labor-saving effect for a user.

Therefore, for the dual-axis hinge module or for the portable electronic device using the dual-axis hinge module, the relative distance between the rotating shafts or the relative distance between the bodies can be adjusted accordingly, thereby providing additional space utilization, and allowing the space vacated by the bodies to accommodate other additional accessories.