CN209925423U - Pivot device and electronic device using same - Google Patents

Abstract

The pivot device comprises a shaft member, a pivot seat, a first torsion member and a second torsion member. The shaft part is provided with a first shaft section and a second shaft section, the cross section of the second shaft section is provided with an outer contour, the outer contour is provided with a first arc section and a first straight line section, and two ends of the first arc section are respectively connected with two ends of the first straight line section. The first shaft section is pivoted on the pivoting seat. The first torsion element is sleeved on the first shaft section. The second torsion piece is provided with a first end and a second end, the first end is connected with the pin joint base, the second end is sleeved on the second shaft section, the longitudinal section of the second end is provided with an inner contour, the inner contour is provided with a second arc section and a second straight-line section, the second arc section is a major arc, and one end of the second arc section is connected with one end of the second straight-line section. The circle diameter corresponding to the first circular arc section is smaller than that corresponding to the second circular arc section and is larger than the maximum distance between the second straight line section and the second circular arc section.

Description

Hub and electronic device using it

technical field

The utility model relates to a hinge device and an electronic device using the same, in particular to a hinge device with a torsion piece and an electronic device using the same.

Background technique

The existing foldable electronic device includes a hinge, a first plate body and a second plate body. The hinge device is connected between the first plate body and the second plate body, and the first plate body and the second plate body can be opened and closed relative to each other through the hinge device. The relative angle is any angle from 0 to 180 degrees. The electronic device is, for example, a notebook computer, which includes a screen, a main board, a hard disk and a keyboard, wherein the screen can be provided on the first board body, and the main board, the hard disk and the keyboard can be provided on the second board body. The shaft member in the hinge device is provided with a torsion member, and the torsion member can generate an appropriate torque to maintain the rotation angle of the shaft member, thereby maintaining the opening and closing angle of the first plate body and the second plate body. However, the existing torsion parts usually generate a fixed torsion force, which may result in poor user experience in some application situations. For example, when the user uses the electronic device as a general notebook computer and opens the screen on the first board body 90 degrees relative to the keyboard on the second board body, if the screen provides a touch function, the user can touch When the screen is in use, the first board body may be pushed to make the relative angle between the first board body and the second board body larger, which will change the viewing angle of the screen and affect the user experience.

Utility model content

The purpose of the present utility model is to provide a hinge device and an electronic device using the same. The torsion element used in the hinge device can increase the torsional force generated when the relative angle between the first plate body and the second plate body is within a range.

In order to achieve the above purpose, the present invention proposes a hinge device, which includes a shaft member, a pivot seat, a first torsion member and a second torsion member. The shaft member has a first shaft section and a second shaft section, the cross section of the second shaft section has an outer contour, the outer contour has a first arc section and a first straight section, and both ends of the first arc section are respectively connected to the first arc section. Both ends of a straight segment. The first shaft segment is pivotally connected to the pivot seat. The first torsion piece is sleeved on the first shaft segment. The second torsion member has a first end portion and a second end portion, the first end portion is connected to the pivot seat, the second end portion is sleeved on the second shaft segment, the longitudinal section of the second end portion has an inner contour, and the inner contour has The second circular arc segment and the second straight line segment, the second circular arc segment is a superior arc, and one end of the second circular arc segment is connected to one end of the second straight line segment. The diameter of the circle corresponding to the first arc segment is smaller than the diameter of the circle corresponding to the second arc segment, and the diameter of the circle corresponding to the first arc segment is greater than the maximum distance between the second straight line segment and the second arc segment.

In an embodiment of the present invention, the first torsion piece includes a round piece, the round piece is sleeved on the first shaft segment in an interference fit manner, and one end of the round piece is connected to the pivot seat.

In an embodiment of the present invention, the round wrapping member includes a first round wrapping portion and a second round wrapping portion, and the first round wrapping portion extends from the pivot seat along the circumference of the first shaft segment in the counterclockwise direction of the shaft center of the shaft member , the second rounded portion extends from the pivot seat along the peripheral side of the first shaft segment in the clockwise direction of the shaft center of the shaft member.

In an embodiment of the present invention, the second torsion member is formed by stacking a plurality of plate members.

In an embodiment of the present invention, the pivot base is provided with a first engaging portion, the first end portion of the second torsion member is provided with a second engaging portion, and the first engaging portion and the second engaging portion are mutually engaged. combined connection.

In an embodiment of the present invention, the first shaft segment is provided with a first stopper, the pivot seat is provided with a second stopper, and the first stopper and the second stopper cooperate with each other to limit the movement of the shaft member. Rotation stroke.

The present utility model further provides an electronic device, which includes the aforementioned hinge device, a first plate body and a second plate body. The first plate body is connected to the first shaft segment of the shaft member. The second plate body is connected to the pivot seat.

To sum up, according to the hinge device and the electronic device using the hinge device proposed by the present invention, the second end portion of the second torsion member is sleeved on the second shaft section of the shaft member, and the second end portion is appropriately designed. The interference between the inner contour of the longitudinal section and the outer contour of the cross section of the second shaft segment can increase the torsional force generated when the relative angle between the first plate body and the second plate body is within a range.

In order to make the above-mentioned and other objects, features and advantages of the present utility model more obvious and easy to understand, preferred embodiments are hereinafter described in detail together with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the present invention.

2 is an exploded view of an electronic device according to an embodiment of the present invention.

3 is a schematic diagram of a hinge device according to an embodiment of the present invention.

FIG. 4 is an exploded view of the hinge device according to an embodiment of the present invention.

5A is a side view of a shaft member of a hinge device according to an embodiment of the present invention.

5B is a side view of the second torsion member of the hinge device according to an embodiment of the present invention.

FIG. 6 is a schematic diagram of an electronic device in a 0-degree state according to an embodiment of the present invention.

7 is a schematic diagram of an electronic device in a 70-degree state according to an embodiment of the present invention.

8 is a schematic diagram of an electronic device in a 95-degree state according to an embodiment of the present invention.

9 is a schematic diagram of an electronic device in a 120-degree state according to an embodiment of the present invention.

10 is a graph showing the angle state and the torque value of the hinge device according to an embodiment of the present invention.

Label description

1 hub

2 The first board

3 Second plate body

10 axle pieces

11 First shaft segment

12 Second shaft segment

120 Outer Profile

121 The first arc segment

122 First line segment

13 axis

14 First stop

20 pivot seat

21 Pivot hole

22 The first clip

23 Second stop

30 First torque part

30a bag round pieces

31 Round part of the first pack

32 Second pack round

40 Second torque part

40a plate

41 First end

42 Second end

420 inner contour

421 Second arc segment

422 Second straight line segment

43 Second snap part

R1 counterclockwise

R2 Clockwise

d1 The diameter of the circle corresponding to the first arc segment

d2 The diameter of the circle corresponding to the second arc segment

d3 The maximum distance between the second straight line segment and the second arc segment

d4 The maximum distance between the first straight line segment and the first arc segment.

Detailed ways

In the following embodiments, the same or similar reference numerals represent the same or similar components. In addition, the directional terms mentioned in the following embodiments, such as: up, down, left, right, front or rear, etc., only refer to the directions of the drawings, therefore, the directional terms used are for illustration, not for used to limit the utility model.

Please refer to FIG. 1 and FIG. 2 at the same time. FIG. 1 and FIG. 2 are a schematic diagram and an exploded view of an electronic device according to an embodiment of the present invention, respectively. The electronic device is a foldable electronic device, which includes a hinge 1 , a first board 2 and a second board 3 . The hinge device 1 is connected between the first plate body 2 and the second plate body 3, and the first plate body 2 and the second plate body 3 can be opened and closed relative to each other through the hinge device 1, for example, the first plate body can be opened and closed relative to each other. The relative angle between 2 and the second plate body 3 is any angle from 0 to 180 degrees. The electronic device is, for example, a notebook computer, which includes a screen, a main board, a hard disk and a keyboard, wherein the screen can be provided on the first board body 2 , and the main board, the hard disk and the keyboard can be provided on the second board body 3 . In this embodiment, the electronic device adopts two hubs 1, but it is not limited to this.

Please refer to FIGS. 3 to 5B at the same time. FIGS. 3 and 4 are a schematic diagram and an exploded view of the hinge device 1 according to an embodiment of the present invention, respectively, and FIGS. 5A and 5B are respectively a schematic diagram of the hinge device 1 according to an embodiment of the present invention. A side view of the shaft member 10 and the second torsion member 40 . The hinge device 1 includes a shaft member 10 , a pivot base 20 , a first torsion member 30 and a second torsion member 40 .

The shaft member 10 has a first shaft section 11 and a second shaft section 12 (as shown in FIG. 4 ). The cross section of the second shaft segment 12 has an outer contour 120 (as shown in FIG. 5A ). The outer contour 120 has a first circular arc segment 121 and a first straight line segment 122 . Both ends of the first circular arc segment 121 are respectively connected to the first Both ends of the straight segment 122 . Therefore, the first shaft section 11 is a cylindrical shaft section, and the second shaft section 12 is a non-cylindrical shaft section. In this embodiment, the connection between the first circular arc segment 121 and the first straight segment 122 adopts a rounded design, but it is not used to limit the present invention, for example, the rounded design may not be adopted.

The pivot base 20 is provided with a pivot hole 21 . The first shaft section 11 of the shaft member 10 passes through the pivot hole 21 so that the first shaft section 11 is pivotally connected to the pivot seat 20 .

The first torsion member 30 is sleeved on the first shaft section 11 of the shaft member 10 . In this embodiment, the first torsion member 30 includes a rounded member 30a. The round wrapping member 30a is sleeved on the first shaft section 11 in an interference fit manner, and one end of the round wrapping member 30a is connected to the pivot seat 20, so when the shaft member 10 rotates, the round wrapping member 30a can generate frictional force as a torsion force to provide the first shaft The shaft segment 11 thus maintains the rotation angle of the shaft member 10 .

More specifically, the wrapping member 30 a includes a first wrapping portion 31 and a second wrapping portion 32 . The first rounded portion 31 extends from the pivot base 20 , and the first rounded portion 31 extends along the circumference of the first shaft segment 11 in the counterclockwise direction R1 of the axis 13 of the shaft member 10 , so the first rounded portion 31 extends 31 mainly generates frictional force when the shaft member 10 rotates in the counterclockwise direction R1 of the shaft center 13 and provides the first shaft segment 11 with a torsion force as a torsion force. The second rounded portion 32 extends from the pivot base 20 , and the second rounded portion 32 extends along the circumference of the first shaft segment 11 in the clockwise direction R2 of the axis 13 of the shaft member 10 , so the second rounded portion 32 mainly generates frictional force when the shaft member 10 rotates in the clockwise direction R2 of the shaft center 13 and provides the first shaft segment 11 with a torsion force as a torsion force.

However, this embodiment is not intended to limit the present invention. For example, the first torsion piece can be used instead or can also include a torsion piece composed of a gasket, a spring piece and a pressing piece, wherein the spring piece is pivotally connected to the first shaft section, and the pad The sheet and the pressing member are sleeved on the first shaft segment and cooperate to press the elastic sheet, so that when the shaft member 10 rotates, a friction force is generated and provided to the first shaft segment 11 as a torsion force.

The second torsion member 40 has a first end portion 41 and a second end portion 42 , the first end portion 41 is connected to the pivot base 20 , and the second end portion 42 is sleeved on the second shaft section 12 . The longitudinal section of the second end portion 42 has an inner contour 420 (as shown in FIG. 5B ), the inner contour 420 has a second circular arc segment 421 and a second straight line segment 422 , the second circular arc segment 421 is a superior arc, and the second circular arc One end of the arc segment 421 is connected to one end of the second straight segment 422 . The circle diameter d1 corresponding to the first arc segment 121 is smaller than the circle diameter d2 corresponding to the second arc segment 421 , and the circle diameter d1 corresponding to the first arc segment 121 is larger than the second straight segment 422 and the second arc segment 421 maximum distance d3. In one embodiment, the circle diameter d1 corresponding to the first circular arc segment 121 is 2.2 cm, the circular diameter d2 corresponding to the second circular arc segment 421 is 2.22 cm, and the maximum distance between the second straight line segment 422 and the second circular arc segment 421 is The distance d3 is 2.14 cm, and the maximum distance d4 between the first straight line segment 122 and the first circular arc segment 121 is 1.81 cm, but not limited thereto. In this embodiment, the second torsion member 40 is composed of a plurality of plate members 40a stacked, but not limited thereto.

In this embodiment, the pivot base 20 is further provided with a first engaging portion 22 , the first end portion 41 of the second torsion member 40 is provided with a second engaging portion 43 , and the first engaging portion 22 is connected to the second engaging portion 43 . The connecting portions 43 are connected to each other by engaging with each other, so that the first end portion 41 of the second torsion member 40 is connected to the pivot base 20 . In addition, the first shaft segment 11 is provided with a first stopper 14 , and the pivot base 20 is further provided with a second stopper 23 . The first stopper 14 and the second stopper 23 cooperate with each other to limit the shaft member 10 . rotation stroke.

Please further refer to FIG. 2 , the first plate body 2 of the electronic device is connected to the end of the first shaft section 11 of the shaft member 10 of the hinge device 1 , and the second plate body 3 is connected to the pivot base 20 , so that the hinge device 1 is connected to the first shaft 11 . Between one plate body 2 and the second plate body 3 , the first plate body 2 and the second plate body 3 can be opened and closed relative to each other through the hinge device 1 . When the first plate body 2 and the second plate body 3 are relatively opened and closed to a certain angle, the first plate body 2 will drive the shaft member 10 to rotate relative to the pivot seat 20, so the first plate body 2 and the second plate body 3. The specific angle of relative opening and closing can be equal to the rotation angle of the shaft member 10 relative to the pivot base 20, and it is said that the electronic device and the hinge 1 are in the specific angle state.

Please refer to FIGS. 6 to 10 at the same time. FIGS. 6 to 9 are schematic diagrams of the electronic device at 0, 70, 95, and 120 degrees respectively according to an embodiment of the present invention, and FIG. 10 is a hinge of an embodiment of the present invention. A graph of the angle state versus torque value. As shown in FIG. 6 and FIG. 7 , when the electronic device and the hinge 1 are gradually increased from the 0-degree state to the 70-degree state, the outer contour 120 of the second shaft section 12 can be at the second end of the second torsion member 40 . The inner contour 420 of 42 rotates freely, and the second torsion member 40 does not generate torsion force. At this time, the torsion force of the hinge device 1 is mainly provided by the first torsion member 30 and is fixed at 2.8Kgf-cm as shown in FIG. 10 .

As shown in FIG. 7 , when the electronic device and the hub 1 are in a state of 70 degrees, a connection between the first arc segment 121 and the first straight segment 122 of the outer contour 120 of the second shaft segment 12 begins to touch the second The inner contour 420 of the second end portion 42 of the torsion member 40 starts to become larger, and the second torsion member 40 begins to generate torsion force. In addition to 2.8 Kgf-cm, the second torsion element 40 should be added, so the torque of the hinge device 1 will increase from 2.8 Kgf-cm. As shown in FIG. 8 , when the electronic device and the hinge device 1 are in a 95-degree state, the outer contour 120 of the second shaft segment 12 abuts against the inner contour 420 of the second end 42 of the second torsion member 40 to make the inner contour 420 becomes the maximum. At this time, in addition to the fixed 2.8 Kgf-cm provided by the first torsion member 30, the torsion of the hinge device 1 also begins to add the second torsion member 40. Therefore, the torsion force of the hinge device 1 Will become a maximum of 3.5 Kgf-cm.

As shown in FIG. 8 and FIG. 9 , when the electronic device and the hinge device 1 are gradually increased from a 95-degree state to a 120-degree state, the outer contour 120 of the second shaft section 12 abuts against the second end of the second torsion member 40 The inner contour 420 of 42 keeps the inner contour 420 at the maximum. At this time, the torsion force of the hinge device 1 is provided by the first torsion member 30 and the second torsion member 40 to maintain the maximum 3.5 Kgf-cm.

To sum up, according to a hinge device and an electronic device using the hinge device proposed in the present invention, the second end portion 42 of the second torsion member 40 is sleeved on the second shaft section 12 of the shaft member 10, and an appropriate design The interference between the inner contour 420 of the longitudinal section of the second end portion 42 and the outer contour 120 of the cross section of the second shaft section 12 may be in the range of 70 to 95 mm when the relative angle between the first plate body 2 and the second plate body 3 It increases the torque it generates when it is more than 95 degrees and maintains it after it is greater than 95 degrees.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, The protection scope of the present utility model shall be subject to those defined by the claims.

Claims (7)

1. Pivot ware, its characterized in that includes:

the shaft part is provided with a first shaft section and a second shaft section, the cross section of the second shaft section is provided with an outer contour, the outer contour is provided with a first arc section and a first straight line section, and two ends of the first arc section are respectively connected with two ends of the first straight line section;

the first shaft section is pivoted to the pivoting seat;

the first torsion element is sleeved on the first shaft section; and

the second torsion piece is provided with a first end part and a second end part, the first end part is connected with the pivot seat, the second end part is sleeved on the second shaft section, the longitudinal section of the second end part is provided with an inner contour, the inner contour is provided with a second circular arc section and a second straight line section, the second circular arc section is a major arc, and one end of the second circular arc section is connected with one end of the second straight line section;

the circle diameter corresponding to the first circular arc section is smaller than the circle diameter corresponding to the second circular arc section, and the circle diameter corresponding to the first circular arc section is larger than the maximum distance between the second straight line section and the second circular arc section.

2. The hinge device of claim 1, wherein the first torsion member comprises a round wrapping member, the round wrapping member is sleeved on the first shaft section in an interference fit manner, and one end of the round wrapping member is connected to the pivot seat.

3. The hub of claim 2, wherein the rounded member includes a first rounded portion extending from the pivot base along the circumferential side of the first shaft section in a counterclockwise direction of the shaft center of the shaft member and a second rounded portion extending from the pivot base along the circumferential side of the first shaft section in a clockwise direction of the shaft center of the shaft member.

4. The hub of claim 1, wherein the second torsion member is formed by a plurality of stacked plates.

5. The hinge device as claimed in claim 1, wherein the pivot base has a first engaging portion, the first end of the second torsion member has a second engaging portion, and the first engaging portion and the second engaging portion are engaged with each other.

6. The hub of claim 1, wherein the first shaft section is provided with a first stop member, the pivot base is provided with a second stop member, and the first stop member and the second stop member cooperate with each other to limit the rotational stroke of the shaft member.

7. An electronic device, comprising:

a hub as claimed in any one of claims 1 to 6;

a first plate connected to the first shaft section of the shaft; and

the second plate body is connected with the pivoting seat.

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