CN116016734A - Hinge assembly and electronic equipment - Google Patents

Referring to fig. 1 to 6, the embodiment of the present application provides a hinge assembly, as shown in fig. 1, including a hinge module including: a

110, a

111, a

112, a first

113, a second

114, and an

115, wherein,

the

111 is sleeved on the rotating

110, and the

111 includes a connecting

1111 and a

1112 that are connected with each other;

the

112, the first

113, the second

114 and the

115 are disposed on the rotating

110, the first sliding

113 is opposite to the

1112, one end of the

115 contacts with the first sliding

113, the other end of the

115 is connected with the second sliding

114, the

112 is disposed at one end of the second sliding

114 facing away from the

115, and the

112 and the

1112 can rotate synchronously with the rotating

110;

in the rotation process of the

111, the

1112 drives the

110 to rotate, so that the

112 and the

110 rotate synchronously, the

1112 drives the first sliding

113, and the

112 drives the second sliding

114, so that the first sliding

113 and the second sliding

114 move in opposite directions to compress the

115.

In this embodiment, the

111 may be integrally connected or fixedly connected to the

1112; when the

112 and the

1112 are mounted on the rotating

110, the rotating shaft is rotated

The

110 is not displaced in the radial direction, and for example, the

112 and the

1112 may be engaged with or riveted to the rotation 5

110. Thus, in the process of rotating the

111, the

111 drives the

110 to rotate through the

1112, and in the process of rotating the rotating

110, the

112 is driven to realize synchronous rotation.

Alternatively, when the first

113 and the second sliding

114 are mounted on the rotating

110, displacement may be generated in an axial direction or a radial direction relative to the rotating

110, for example, the first

113 and the 0

114 are sleeved on the rotating

110 through their mounting through holes, and the inner diameters of the mounting through holes of the first sliding

113 and the second sliding

114 may be slightly larger than the maximum outer diameter of the rotating

110, so that the first sliding

113 and the second sliding

114 may be displaced in the axial direction or the radial direction relative to the rotating

110 during the rotation of the rotating

110.

Alternatively, the

115 may be in a compressed or stretched deformed state, so that the first sliding

113 and the

1112 are kept in an abutting state, and the second

114 and the

112 are kept in an abutting state, that is, the

115 may be used to provide a damping force for the relative rotation of the first sliding

113 and the

1112, and a damping force for the relative rotation of the second sliding

114 and the

112. This allows to have the effect that in the absence of external forces,

the relative position of the

113 and the

1112 may be kept unchanged while the relative position of the

114 and the

112 is kept unchanged by 0.

In this embodiment, the

1112 drives the rotating

110 to rotate through being disposed in the rotation process of the

111, so that the

112 and the rotating

110 rotate synchronously.

Thus, compared with the prior art, the

111 and the

112 can synchronously rotate without additionally arranging a connecting bridge, so that the occupied volume of the hinge assembly can be reduced, and the miniaturization design of products is facilitated.

5 optionally, in some embodiments, the

110 is a flat shaft, and the

112 and the

1112 are each provided with an oval through hole adapted to the flat shaft.

In this embodiment, since the

110 is configured as a flat shaft, and the

112 and the

1112 are correspondingly configured with oval through holes, the

112 and the

1112 can not rotate relative to the rotating

110. Of course, in other embodiments, the rotating shaft may be configured as a cylinder, and the surface of the cylinder may be configured with ribs or grooves along the axial direction so that the

112 and the

1112 do not rotate relative to the rotating

110.

Alternatively, the structures of the

112, the

1112, the first

113 and the second

114 may be set according to actual needs, for example, in some embodiments, a side of the

112 facing the second

114 includes at least two first protrusions uniformly spaced along the circumference of the

112 and a first groove between two adjacent first protrusions; a second sliding groove matched with the first convex block and a second sliding convex block matched with the second groove are arranged on one side of the second sliding

114 facing the

112;

In this embodiment of the present application, the number of the first bump, the first groove, the second sliding block, and the second sliding groove may be three. During the rotation of the rotating

110, the first protrusion and the second sliding protrusion may abut against each other or the first protrusion is located in the second sliding groove. When the first tab is positioned in the second sliding groove, the second sliding tab is positioned in the first groove, i.e., the

112 and the second

114 are engaged with each other.

Likewise, the structures of the

1112 and the

113 may be the same as the structures of the

112 and the

114. For example, a side of the

1112 facing the

113 includes at least two second protrusions uniformly spaced along the cam circumferential direction and a second groove between two adjacent second protrusions; a first sliding groove matched with the second lug and a first sliding lug matched with the second groove are arranged on one side of the first sliding

113 facing the second lug;

Alternatively, the structure of the

115 may be configured according to practical needs, for example, a spring, a shrapnel, or other elastic structures. In some embodiments, the

115 includes a first spring sleeved on the rotating

110, and having one end abutting against the first sliding

113 and the other end abutting against the second sliding

114.

In this embodiment of the present application, the first spring may be in a compressed state all the time. Because the spring is adopted as the elastic piece, the elastic piece can be installed and fixed only by sleeving the elastic piece on the rotating

110, and the same elastic acting force on the first sliding

113 and the second sliding

114 can be ensured, so that the rotating stability is ensured. In addition, the structure is simple and is convenient for industrial realization.

Optionally, in some embodiments, the hinge assembly further includes a

12, a

13, and a connecting

14, wherein the

110 is rotatably mounted on the connecting

14, the hinge assembly includes a first hinge module and a second hinge module disposed in parallel in a first direction, a connecting

1111 of the first hinge module is slidably connected to the

12, and a connecting

1111 of the second hinge module is slidably connected to the

13.

In this embodiment, the

12 and the

13 are used for being fixed on an electronic device, for example, for a folding screen device, the

12 and the

13 are respectively fixed on two folding portions of the folding screen device, such as a middle frame of a mobile phone. The

12 and the

13 may be provided with sliding grooves, the connecting

1111 may be installed in the sliding grooves, and the connecting

1111 may slide in the corresponding sliding groove and drive the

1112, the

110 and the

112 to rotate during the rotation of the

12 and the

13 relative to the connecting

14.

Optionally, in some embodiments, the first fixing

12 and the

13 may further be provided with a limiting bump, the connecting

1111 is provided with a limiting hole, the limiting bump is located in the limiting hole and can slide in the limiting hole, the limiting bump and the limiting hole can limit the sliding distance of the connecting

1111 relative to the limiting slot, the connecting

1111 is prevented from being separated from the limiting slot, and the reliability of the connection between the connecting

1111 and the first fixing

12 and the

13 is improved.

Optionally, referring to fig. 3 and 4, in some embodiments, the hinge module further comprises: the clamping

116 and two fixing

117 which are oppositely arranged, the fixing blocks 117 are fixedly connected with the connecting

14, a first through hole which is matched with the

110 is formed in the fixing blocks 117, the first end of the

110 sequentially penetrates through the two fixing

117, and the first end of the

110 is in clamping connection with the clamping

116; the

1112, the fixed

117, the

112, the

113, the

114, and the

115 are located between the two fixed

117.

In this embodiment, the two fixing

117 are located between the first end and the second end of the

110, that is, the fixing blocks 117 are sleeved on the

110, where the outer diameter of the second end of the

110 is greater than the first through hole, and the first end of the

110 abuts against the fixing blocks 117 through the clamp springs 116, so that the

110 is installed and fixed on the connecting

14.

Alternatively, the fixing

117 may be fixed to the connection bracket by a screw, the first end of the

110 may be provided with an annular clamping groove, and the

116 may be clamped and fixed to the annular clamping groove.

In the mounting process, one fixing

117 may be first mounted and fixed on the

14, then the first end of the

110 passes through the first through hole of the fixing

117, then the

111, the first sliding

113, the first spring, the second sliding

114, the

112 and the other fixing block 117 sequentially pass through the first end of the

110 to be sleeved on the

110, and the other fixing

117 is fixed on the

14, and finally the

116 is clamped and fixed with the first end of the

110.

Optionally, in some embodiments, the hinge assembly further includes a

15, a second end of the

110 of the hinge assembly is provided with a

1101, and the

1101 is in meshed connection with the synchronizing

15, so that the

110 of the first hinge module and the

110 of the second hinge module are in synchronous driving connection.

In this embodiment, the synchronizing

15 is configured to enable the

110 of the first hinge module and the

110 of the second hinge module to rotate synchronously, so that the stability of rotation can be improved. The rotation directions of the

110 of the first hinge module and the

110 of the second hinge module are opposite, for example, when the

110 of the first hinge module rotates clockwise, the

110 of the second hinge module rotates anticlockwise, so that folding or unfolding movement of the folding screen device is realized.

It should be noted that the structure and the number of the synchronizing wheels may be set according to actual needs, for example, in the embodiment of the present application, the number of the synchronizing wheels may be two, and two synchronizing

15 are disposed between two

1101 in parallel, and the two synchronizing

15 and the two

1101 are sequentially meshed.

Optionally, in some embodiments, the first sliding

113 of the first one of the hinge modules and the first sliding

113 of the second one of the hinge modules are connected by a

118; the second sliding

114 of the first hinge module is connected with the second sliding

114 of the second hinge module by a second connecting

119.

In this embodiment, the first sliding

113 may be integrally connected to the first connecting

118, and the second sliding

114 may be integrally connected to the second connecting

119. In this way, the difficulty of assembly is reduced. Of course, in other embodiments, the first sliding

113 may be fixedly connected to the first connecting

118 by a screw, which is not limited herein.

Further, a guide rod and a third spring may be further disposed between the two fixing blocks, the first connecting

118 is provided with a second through hole adapted to the guide rod, and the second connecting

119 is provided with a third through hole adapted to the guide rod; the third spring is sleeved on the guide rod, the third spring is located between the first connecting piece and the second connecting piece, and the third spring is respectively abutted to the first connecting

118 and the second connecting

119.

Optionally, referring to fig. 5 and 6 in combination, in some embodiments, the hinge assembly includes a third hinge module and a fourth hinge module symmetrically disposed in the second direction, and a

110 of the third hinge module and a

110 of the fourth hinge module are integrally connected.

In this embodiment of the present application, the first direction and the second direction may be directions perpendicular to each other, for example, the number of the hinge modules is four, any two hinge modules located in the first direction may be referred to as a first hinge module and a second hinge module, and any two hinge modules located in the second direction may be referred to as a third hinge module and a fourth hinge module. Because the

110 of the two hinge modules in the second direction are arranged into an integrated structure, the occupied volume of the hinge assembly can be reduced, and meanwhile, the installation difficulty can be reduced. In addition, since the number of separate cams (i.e., sliding cams) is increased, the torque of the rotating shaft can be increased, and the stability of the connection of the hinge assembly is improved. At the same time, the bearing torsion force is dispersed on the two

111, so that the single swing arm is prevented from being broken due to stress concentration.

Optionally, in some embodiments, the

110 is further sleeved with a

16, a third sliding

17, a

18, a

19, and a fourth sliding

20 in sequence, where the

16, the third sliding

17, the

18, the

19, and the fourth sliding

20 are located between a

117 of a third hinge module and a

117 of a fourth hinge module;

during the rotation of the

111, the

1112 drives the

110 to rotate, so that the

16 and the

19 rotate synchronously with the

110, the

16 drives the third sliding

17, and the

19 drives the fourth sliding

20, so that the third sliding

17 and the fourth sliding

20 move in opposite directions to compress the

18.

In this embodiment, the structures of the

16, the third sliding

17, the

18, the

19 and the fourth sliding

20 are the same as the

1112, the second sliding

114, the first spring, the first sliding

113 and the

112, which can be specifically described with reference to the above embodiment, and will not be described herein again, since the

16, the third sliding

17, the

18, the

19 and the fourth sliding

20 are disposed between the two hinge modules, the torque of the

110 can be further increased, and the stability of the connection of the hinge assemblies is further improved.

1. A hinge assembly comprising a hinge module, the hinge module comprising: the device comprises a rotating shaft, a swing arm, a first cam, a first sliding cam, a second sliding cam and an elastic piece, wherein,

the swing arm is sleeved on the rotating shaft and comprises a connecting arm and a second cam which are connected with each other;

the first cam, the first sliding cam, the second sliding cam and the elastic piece are arranged on the rotating shaft, the first sliding cam is opposite to the second cam, one end of the elastic piece is in contact with the first sliding cam, the other end of the elastic piece is connected with the second sliding cam, the first cam is arranged at one end, deviating from the elastic piece, of the second sliding cam, and the first cam and the second cam can synchronously rotate with the rotating shaft;

and in the swing arm rotating process, the second cam drives the rotating shaft to rotate, the first cam and the rotating shaft synchronously rotate, the second cam drives the first sliding cam, and the first cam drives the second sliding cam so that the first sliding cam and the second sliding cam move in opposite directions to compress the elastic piece.

2. The hinge assembly of claim 1, wherein the shaft is a flat shaft, and the first cam and the second cam are each provided with an oval through hole adapted to the flat shaft.

3. The hinge assembly of claim 1, wherein a side of the first cam facing the second sliding cam includes at least two first protrusions disposed at uniform intervals along a circumference of the first cam and a first groove between two adjacent first protrusions; a second sliding groove matched with the first convex block and a second sliding convex block matched with the second groove are formed in one side, facing the first cam, of the second sliding cam;

wherein, during the rotation of the first lug, the first lug can move between the second sliding groove and the second sliding lug.

4. The hinge assembly of claim 1, wherein a side of the second cam facing the first sliding cam includes at least two second protrusions uniformly spaced along a cam circumference and a second groove between two adjacent second protrusions; a first sliding groove matched with the second lug and a first sliding lug matched with the second groove are formed in one side, facing the second lug, of the first sliding cam;

wherein, during the rotation of the second lug, the second lug can move between the first sliding groove and the first sliding lug.

5. The hinge assembly of claim 1, wherein the elastic member comprises a first spring sleeved on the rotating shaft, one end of the first spring is abutted against the first sliding cam, and the other end of the first spring is abutted against the second sliding cam.

6. The hinge assembly of claim 1, further comprising a first fixed bracket, a second fixed bracket, and a connecting bracket, wherein the rotating shaft is rotatably mounted on the connecting bracket, the hinge assembly comprising a first hinge module and a second hinge module arranged in parallel in a first direction, the connecting arm of the first hinge module being slidably connected to the first fixed bracket, the connecting arm of the second hinge module being slidably connected to the second fixed bracket.

7. The hinge assembly of claim 6, wherein the hinge module further comprises: the clamping spring and the two fixing blocks are oppositely arranged, the fixing blocks are fixedly connected with the connecting bracket, a first through hole matched with the rotating shaft is formed in the fixing blocks, the first end of the rotating shaft sequentially penetrates through the two fixing blocks, and the first end of the rotating shaft is connected with the clamping spring in a clamping mode; the second cam, the fixed block, the first cam, the first sliding cam, the second sliding cam and the elastic piece are positioned between the two fixed blocks.

8. The hinge assembly of claim 7, further comprising a synchronizing wheel, wherein a second end of the hinge assembly's rotational shaft is provided with a rotational gear, the rotational gear being in meshed engagement with the synchronizing wheel to synchronize the rotational shaft of the first one of the hinge modules with the rotational shaft of the second one of the hinge modules.

9. The hinge assembly of claim 7, wherein the first sliding cam of a first one of the hinge modules is connected to the first sliding cam of a second one of the hinge modules by a first connector; the second sliding cams of the first hinge module and the second sliding cams of the second hinge module are connected through a second connecting piece.

10. The hinge assembly of claim 7, wherein the hinge assembly includes a third hinge module and a fourth hinge module symmetrically disposed in the second direction, and a rotation shaft of the third hinge module and a rotation shaft of the fourth hinge module are integrally connected.

11. The hinge assembly according to claim 10, wherein a third cam, a third sliding cam, a second spring, a fourth cam and a fourth sliding cam are further sleeved on the rotating shaft in sequence, and the third cam, the third sliding cam, the second spring, the fourth cam and the fourth sliding cam are located between a fixed block of a third hinge module and a fixed block of a fourth hinge module;

and in the swing arm rotating process, the second cam drives the rotating shaft to rotate, the third cam and the fourth cam rotate synchronously with the rotating shaft, the third cam drives the third sliding cam, and the fourth cam drives the fourth sliding cam so that the third sliding cam and the fourth sliding cam move in opposite directions to compress the second spring.

12. An electronic device comprising a hinge assembly according to any one of claims 1 to 11.