CN201623737U - Biaxial hinge device and portable terminal with the hinge device - Google Patents

Abstract

The utility model discloses a biaxial hinge device and a flip-type portable terminal with the biaxial hinge device. The biaxial hinge device is suitable for a flip-type portable terminal with an upper cover and a main body. The biaxial hinge device It includes: a first double-axis hinge unit that hinges the upper cover part and one end of the main body part; a second double-axis hinge unit that hinges the upper cover part and the other end part of one side of the main body part Shaft hinge unit. Since the utility model arranges the two-axis hinge devices on both sides of the portable terminal, it not only improves the appearance quality of the portable terminal, but also occupies less space, so that a larger display part and a keyboard part can be designed.

Description

Biaxial hinge device and portable terminal with the hinge device

technical field

The utility model relates to a biaxial hinge device and a portable terminal provided with the hinge device, in particular to a portable terminal in which a biaxial hinge device is arranged according to function separation to improve appearance quality and space utilization.

Background technique

Generally, a portable terminal refers to a device that people wirelessly communicate with each other while carrying it. This kind of portable terminal generally refers to a cordless phone, a digital mobile phone, a personal digital assistant (PDA: Personal Digital Assistant), etc., and according to its opening and closing method, it can usually be divided into a bar type, a sliding type, and a flip type. type (folder type), etc. Taking portability into consideration, such a portable terminal tends to be smaller, lighter, and more aesthetically pleasing.

Among the above-mentioned types of portable terminals, due to the coplanarity of the screen and the keyboard, the co-existence of the screen and the keyboard in the bar-type portable terminal is more contradictory after the size of the two is increased, and gives people a dull feeling. Although the sliding cover type portable terminal can be designed with a larger screen, its sliding cover structure takes up a larger keyboard space, making the keyboard still smaller. Although the clamshell mobile phone has the potential to become the above-mentioned multifunctional mobile phone, the upper cover and the lower cover of the existing clamshell mobile phone are often connected by a single pivot mechanism, which can only be turned over once, and the rotation angle is limited. The main display screen on the upper cover and the keyboard on the lower cover are hidden, so the operations of the handheld computer board such as viewing and performing input and operating instructions to the mobile phone cannot be performed. For this reason, a flip-type portable terminal having a biaxial hinge with two pivots is recently used on the market.

FIG. 1 is a perspective view of an opened state of a conventional flip-type portable terminal having a biaxial hinge device. As shown in Figure 1, the existing flip-type portable terminal includes: a top cover portion 10 with a display screen 11; a main body portion 20 with a keyboard portion 21; Hinge device 30. Here, the conventional flip-type portable terminal is opened or closed by the biaxial hinge device 30 , so the upper cover 10 can be rotated 360 degrees around the biaxial hinge device 30 .

FIG. 2 is a schematic structural diagram of the biaxial hinge device of the conventional flip-type portable terminal shown in FIG. 1 . As shown in FIG. 2 , the biaxial hinge device 30 includes: a housing 31 , a first hinge shaft 41 and a second hinge shaft 42 that pass through the two side surfaces 31 a and 31 b of the housing 31 and are parallel to each other, and the two shafts of the first hinge shaft 41 The end is fixedly combined with one side of the upper cover part 10, and the two ends of the second hinge shaft 42 are fixedly combined with one side of the main body part 20; respectively formed on the first and second hinge shafts 41, 42 outer circumference and the first and second gears 51 and 52 respectively linked with the first and second hinge shafts 41 and 42. One side of the first and second gears 51 and 52 forms the first and second hinge shafts respectively. Two cams 51a, 52a; facing the first and second cams 51a, 52a, the first and second sliders 61, 62 are respectively arranged on the periphery of the first hinge shaft 41 and the second hinge shaft 42, the first and second The two sliders 61, 62 are respectively formed with cam surfaces corresponding to the first and second cams 51a, 52a; the first and second elastic members 71, 72 adjacent to the first and second sliders 61, 62 respectively , to provide elastic force towards the direction of the first and second sliders 61 and 62 respectively; the first and second support members 81 and 82 respectively formed on the circumference of the first and second hinge shafts 41 and 42 are used for Respectively elastically support the first and second elastic members 71, 72; the through portion 90 formed between the first and second support members 81, 82 and the other side 31b of the housing 31 is used to make the flexible circuit board (FPCB ) through, so that the FPCB is connected to the PCB accommodated in the upper cover and the PCB accommodated in the main body. Here, the two sides 31a, 31b of the housing 31 are used to rotatably support the first and second hinge shafts 41, 42, and can keep them at a certain distance.

The above-mentioned conventional flip-type portable terminal performs opening and closing operations in the following manner.

When the user wants to open the flip-type portable terminal, the upper cover 10 is first opened to rotate around the biaxial hinge device 30 . At this time, since both ends of the first hinge shaft 41 are fixedly combined with one side of the upper cover part 10 , the first hinge shaft 41 rotates with the rotation of the upper cover part 10 . Moreover, since the first gear 51 is interlocked with the first hinge shaft 41, and the first gear 51 is meshed with the second gear 52, the first hinge shaft 41 drives the first gear 51 to rotate, and the first gear 51 drives the second gear 52 spins. And, since the second hinge shaft 42 is interlocked with the second gear 52 , the second hinge shaft 42 rotates according to the rotation of the second gear 52 . Moreover, the second hinge shaft 42 is connected to the main body 20 , so that the main body 20 rotates with the rotation of the second hinge shaft 42 . At this time, the first and second cams 51a and 52a formed on the first and second gears 51 and 52 rotate according to the rotation of the first and second gears 51 and 52, pushing the first and second sliders 61 , 62 of the cam surface, so that the first and second sliding members 61 and 62 respectively compress the elastic members 71 and 72 along the axial directions of the first and second hinge axes 41 and 42 . When rotating to a certain degree, that is, when the tops of the first and second cams 61 and 62 just exceed the tops of the cam faces, according to the elastic force of the elastic members 71 and 72 on the first and second slides 61 and 62, the first and second The cams 51a, 52a are automatically fitted to the other cam surface, thereby completing the opening action of the flip-type portable terminal. The action of closing the flip-type portable terminal is opposite to the above process, so it will not be described in detail.

As mentioned above, in the conventional flip-type portable terminal with the biaxial hinge device, the upper cover can be rotated arbitrarily within 360 degrees. Moreover, the display screen of the upper cover and the keyboard of the main body can be exposed outside after being folded.

However, in a portable terminal having such a biaxial hinge device, each component is assembled in a casing (for accommodating the above-mentioned components), and the biaxial hinge device is provided between the display part and the keyboard part of the portable terminal so as to separate The display part and the keyboard part are opened, so not only the appearance quality of the portable terminal is reduced, but also the space occupied is larger, so that the design size of the keyboard part and the display part is affected.

Utility model content

The utility model is proposed in order to solve the above problems, and its purpose is to provide a biaxial hinge device with separate functions and a portable terminal with the biaxial hinge which improves the appearance quality and space utilization.

In order to achieve the above object, the biaxial hinge device according to the present invention is suitable for a flip-type portable terminal having an upper cover part and a main body part, and the biaxial hinge device comprises: a hinge connecting the upper cover part and the main body part A first biaxial hinge unit at the side end; a second biaxial hinge unit at the other end of one side of the upper cover and the main body hingedly connected.

Furthermore, the first two-axis hinge unit includes a first hinge axis and a second hinge axis parallel to the first hinge axis, and the second two-axis hinge unit includes a third hinge axis and a second hinge axis parallel to the third hinge axis. The fourth hinge axis of the hinge axis.

Moreover, the first biaxial hinge unit further includes: a first hinge arm integrally formed with the first hinge shaft, for fixedly combining with one side end of the upper cover; The second hinge arm formed integrally with the hinge shaft is used for fixedly combining with the end of one side of the main body. The second biaxial hinge unit further includes: a third hinge arm integrally formed with the third hinge shaft, for being fixedly combined with the other end of one side of the upper cover; The fourth hinge arm formed integrally with the hinge shaft is used for fixedly combining with the other end on one side of the main body.

Moreover, the outer circumference of the first hinge shaft is provided with a first gear that is linked with the first hinge shaft, and the outer circumference of the second hinge shaft is provided with a second gear that is linked with the second hinge shaft, The outer circumference of the third hinge shaft is formed with a third gear that is linked with the third hinge shaft; the outer circumference of the fourth hinge shaft is formed with a second gear that is linked with the fourth hinge shaft. The first gear meshes with the second gear, and the third gear meshes with the fourth gear.

Moreover, the first biaxial hinge unit further includes: a first hinge shaft disposed at the ends of the first hinge shaft and the second hinge shaft and passing through the first hinge shaft and the second hinge shaft. The bracket is used to support the first hinge shaft and the second hinge shaft, so that the first hinge shaft and the second hinge shaft maintain a predetermined distance.

Moreover, the first biaxial hinge unit further includes a through portion formed between the first bracket and the first gear and the second gear, for allowing the flexible circuit board to pass through.

Moreover, the second biaxial hinge unit further includes: a first cam integrally formed on one side of the third gear; corresponding to the formation direction and shape of the first cam, integrally formed on the fourth gear A second cam on one side of the gear; a sliding piece facing the first cam and the second cam, the sliding piece passing through the first hinge shaft and the second hinge shaft. The slider has a cam surface corresponding to the first cam and the second cam on a side facing the first cam and the second cam.

In addition, the second biaxial hinge unit further includes: an elastic member disposed on a side of the sliding member on which the cam surface is not formed, for providing elastic force to the sliding member; through which the third hinge The shaft and the second bracket of the fourth hinge shaft are used to support the elastic component, the three hinge shafts and the fourth hinge shaft.

In addition, the second biaxial hinge unit further includes a penetrating portion formed on a side of the third gear and the fourth gear where the first cam and the second cam are not formed, so as to allow the flexible circuit board to penetrate. pass.

As mentioned above in the utility model, since the parts of the biaxial hinge device of the portable terminal are assembled separately according to their functions, and the biaxial hinge devices are respectively arranged on both sides of the portable terminal, it not only improves the appearance quality of the portable terminal, but also The occupied space is also small, so that a larger display unit and a keyboard unit can be designed.

Furthermore, since the gears meshing with each other are formed, the two shafts can be rotated more stably.

Description of drawings

1 is a perspective view showing an open state of a conventional flip-type portable terminal having a biaxial hinge device;

FIG. 2 is a schematic structural diagram of the biaxial hinge device of the existing flip-type portable terminal shown in FIG. 1;

3 is a front view of a flip-type portable terminal according to the first embodiment of the present invention;

4 is a schematic structural view of a first biaxial hinge unit disposed at one side end of the flip-type portable terminal according to the first embodiment of the present invention;

5 is a schematic structural view of a second biaxial hinge unit disposed at the other end of the flip-type portable terminal according to the first embodiment of the present invention;

6 is a schematic structural view of a first biaxial hinge unit disposed at one end of a flip-type portable terminal according to a second embodiment of the present invention;

7 is a schematic structural view of a second biaxial hinge unit disposed at the other end of the flip-type portable terminal according to the second embodiment of the present invention;

FIG. 8 is a schematic diagram showing modifications of the first embodiment and the second embodiment.

Description of the main symbols in the drawings: 100 is the upper cover, 200 is the main body, 300 is the biaxial hinge device, 310 is the first biaxial hinge unit, 320 is the second biaxial hinge unit, 311a is the first hinge arm, 311b 312a is the first hinge shaft, 312b is the second hinge shaft, 313 is the first shell, 314a is the first gear, 314b is the second gear, 315 is the first bracket, 316 is the through part, 321a 321b is the fourth hinge arm, 322a is the third hinge shaft, 322b is the fourth hinge shaft, 323 is the second shell, 324a is the third gear, and 324b is the fourth gear.

Detailed ways

Hereinafter, preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be noted that, in order not to confuse the gist of the present utility model, descriptions of technologies known to those skilled in the art are omitted. And, the embodiment and accompanying drawing described in this specification only represent the preferred embodiment of the present utility model, can not represent the technical idea of the present utility model, therefore, those skilled in the art should know, can be used for the embodiment of the present utility model Make various changes.

FIG. 3 is a front view of a flip-type portable terminal according to a first embodiment of the present invention. As shown in FIG. 3 , the flip-type portable terminal according to the present invention includes an upper cover part 100 and a main body part 200 and a biaxial hinge device 300 for hinge-connecting the upper cover part 100 and the main body part 200 . Here, the upper cover part 100 has a display screen 110 , and the main body part 200 has a keyboard part 210 . The biaxial hinge device 300 includes a first biaxial hinge unit 310 that hinges one end of the upper cover 100 and the main body 200 and the other end that hinges the upper cover 100 and the main body 200 on one side. The second biaxial hinge unit 320.

FIG. 4 is a schematic structural view of a first biaxial hinge unit disposed at one end of the flip-type portable terminal according to the first embodiment of the present invention.

As shown in FIG. 4 , the biaxial hinge unit 310 includes a first hinge shaft 312 a integrally formed with a first hinge arm 311 a fixedly combined with one end of the upper cover portion 100 and a first hinge shaft 312 a integrally formed with a first hinge arm 311 a fixedly combined with the main body portion 200 . The second hinge axis 312b of the second hinge arm 311b fixedly combined with one end, the second hinge axis 312b is parallel to the first hinge axis 312a. Moreover, the outer circumference of the first hinge shaft 312a forms a first gear 314a interlocked with the first hinge shaft 312a, the outer circumference of the second hinge shaft 312b forms a second gear 314b interlocked with the second hinge shaft 312b, and the second gear 314b meshes with the first gear 314a.

In addition, the first biaxial hinge unit 310 further includes a first housing 313 for accommodating the first hinge shaft 312a and the second hinge shaft 312b. Moreover, the first housing 313 is formed with a first opening 313a and a second opening 313b on one side adjacent to the first and second hinge arms 311a and 311b, so that the first hinge shaft 312a and the second hinge shaft 312b pass through respectively. The first opening portion 313a and the second opening portion 313b are integrally formed with the first hinge arm 311a and the second hinge arm 311b, respectively. The first opening 313a and the second opening 313b can also function to support the first and second hinge shafts 312a and 312b.

In order to stably support the first and second hinge shafts 312a and 312b, a first bracket 315 is provided at the ends of the first and second hinge shafts 312a, and the first bracket 315 is penetrated by the first hinge shaft 312a and the second hinge shaft 312a. The hinge shaft 312b supports the first hinge shaft 312a and the second hinge shaft 312b. Thereby, the first hinge axis 312a and the second hinge axis 312b can maintain a predetermined distance.

Moreover, a through portion 316 is formed between the first and second gears 314 a , 314 b and the first bracket 315 for the FPCB to pass through. Moreover, the first housing 313 is respectively formed with an upper side through hole 316a and a lower side through hole 316b on the upper side and the lower side of the through part 316, so that the FPCB can pass through, so that the FPCB is connected to the PCB accommodated in the upper cover part. and the PCB housed in the main body. Here, although the through portion 316 is formed between the first and second gears 314a, 314b and the first bracket 315 in this embodiment, the through portion 316 should not affect the operation of the first biaxial hinge unit. Can be formed anywhere on the first biaxial hinge unit.

In order to consolidate the distance between the first hinge axis 312a and the second hinge axis 312b, another bracket can be provided. For example, another bracket 317 passing through the first and second gears 314a and 314b is provided on one side of the first and second gears 314a and 314b, as shown in FIG. 4 .

In addition, the first bracket 315 and the other bracket 317 can be respectively fixed on the inner surface of the casing 313, and have two holes for passing through the first and second hinge shafts 312a and 312b respectively, so that the first and second hinges The shafts 312a, 312b are rotatably supported.

5 is a schematic structural view of a second biaxial hinge unit disposed at one side and the other end of the flip-type portable terminal according to the first embodiment of the present invention.

As shown in FIG. 5 , the second biaxial hinge unit 320 includes a third hinge shaft 312 a integrally formed with a third hinge arm 321 a fixedly combined with the other end of one side of the upper cover 100 and a third hinge arm 321 a integrally formed with the other end of the upper cover portion 100 . The fourth hinge axis 322b of the fourth hinge arm 321b at the other end of one side of the main body 200 is parallel to the fourth hinge axis 322a. Meanwhile, the first hinge axis 312a is on the same axis as the third hinge axis 322a, and the second hinge axis 312b is on the same axis as the fourth hinge axis 322b.

In addition, a third gear 324a cooperating with the third hinge shaft 322a is formed on the outer circumference of the third hinge shaft 322a, a first cam 325a is integrally formed on one side of the third gear 324a, and a third gear 324a is formed on the outer circumference of the fourth hinge shaft 322b. There is a fourth gear 324b linked with the fourth hinge shaft 322b, the fourth gear 324b is integrally formed with a second cam 325b corresponding to the third gear 324a, the first cam 325a and the second cam 325b are formed in the same direction and shape, and , the fourth gear 324b meshes with the third gear 324a.

Moreover, the second biaxial hinge unit 320 further includes: a sliding piece 326 penetrating through the third hinge shaft 322a and the fourth hinge shaft 322b and facing the first cam 325a and the second cam 325b, the sliding piece 326 and the second cam 325b The facing surfaces of the first and second cams 325a and 325b have cam surfaces corresponding to the first and second cams 325a and 325b; the side of the slider 326 that does not form the cam surfaces is provided with an elastic member 327 for providing elastic force to the slider 326; the second bracket 328 that passes through the third hinge shaft 322a and the fourth hinge shaft 322b and supports the elastic member 327 is used for supporting the third hinge shaft 322a and the second hinge shaft 322a Four hinge axes 322b, so that the first hinge axis 312a and the second hinge axis 312b maintain a predetermined distance. Here, the elastic component 327 may be two compression springs respectively covering the third hinge shaft 322a and the fourth hinge shaft 322b.

In addition, the second biaxial hinge unit 320 also includes a second housing 323 for accommodating the third hinge shaft 322a and the fourth hinge shaft 322b, the third and fourth gears 324a, 324b, the elastic member 327 and the second Bracket 328. Moreover, the second housing 323 is formed with a third opening 323a and a fourth opening 323b on one side adjacent to the third and fourth hinge arms 321a, 321b, so that the third hinge shaft 322a and the fourth hinge shaft 322b pass through respectively. The third opening 323a and the fourth opening 323b are integrally formed with the third hinge arm 321a and the fourth hinge arm 321b respectively. The third opening 313a and the fourth opening 313b can also function to support the third and fourth hinge shafts 322a and 322b.

Moreover, the distance between the first hinge axis 312a and the second hinge axis 312b is the same as the distance between the third hinge axis 322a and the fourth hinge axis 322b, so that the upper cover part 100 is formed by the first hinge axis 312a and the third hinge axis 322a. Rotate around the axis of the second hinge shaft 312b and the fourth hinge shaft 322b to make the main body 200 rotate around the axis formed by the second hinge shaft 312b and the fourth hinge shaft 322b.

Moreover, since the sliding member 326 passes through the third and fourth hinge shafts 322a and 322b, it can only slide along the lengthwise direction of the axes of the third and fourth hinge shafts 322a and 322b.

Moreover, the second bracket 328 can be fixed on the inner surface of the housing 313, and has two holes for passing through the third and fourth hinge shafts 322a, 322b respectively, so that the third, fourth hinge shafts 322a, 322b 322b is rotatably supported.

And, the utility model can be formed in the first, second cam 325a, 324b of the first, second gear 324a, 324b and the shape and the number of the cam surface of corresponding slider according to the needs of users. Adjust the opening angle of the flip-type portable terminal. For this, since it belongs to the technical means commonly used by those skilled in the art, no detailed description will be given here.

Next, the opening operation of the flip-type portable terminal will be described.

When the user opens the portable terminal, the user first applies a rotational force to the upper cover part 100 to rotate the upper cover part 100 . At this time, since the first and third hinge arms 321a are respectively fixedly combined with the first and second hinge joint parts 120 and 130 at one end of the upper cover part 100, the first and third hinge arms 311a and 321a also rotate accordingly. . Therefore, the first and third hinge shafts 321a and 322a integrally formed with the first and third hinge arms 311a and 321a also rotate together, and further, the first and third gears 314a formed on the first and third hinge shafts 322a , 324a also rotate together, and the second and fourth gears 314b, 324b meshed with the first and third gears respectively also rotate accordingly, thereby driving the second hinge shaft 312b and the fourth hinge shaft 322b to rotate together, thereby cooperating with the first hinge shaft 312b. 2. The second and fourth hinge arms 312b and 321b formed integrally with the fourth hinge axis 312b and 322b also drive the main body 200 to rotate. At this time, since the first and second cams 325a and 325b formed on the third and fourth gears 314a and 324a also rotate together, that is, the first and second cams 325a and 325b rotate with the cam surface of the slider 326 , so as to push the sliding member 326, so that the elastic member 327 is in a compressed state. When the first and second cams 325a, 325b rotate along with the slope of the cam surface of the slider 326 and are about to exceed the top of the cam surface, according to the elastic force of the elastic member 327 on the slider 326, the first and second cams 325a, 325b, 325b automatically mates to the other cam surface. Thus, under the condition of no rotational force, the main body and the upper cover are opened while maintaining a certain angle. Thus, any opening angle can be realized through the cooperation between the first and second cams 325a, 325b and the cam surfaces according to the needs of the user.

As described above, in the flip-type portable terminal having the above structure, since the first biaxial hinge unit and the second biaxial hinge unit of the biaxial hinge device are respectively formed on both side ends of the portable terminal, the display portion and the keyboard portion A hinge device such as the prior art is arranged between them, thereby improving the appearance quality. Moreover, the mobility of the space A between the display screen and the keyboard portion is improved, so that a larger-sized display screen and keyboard portion can be designed.

Next, a biaxial hinge device according to a second embodiment of the present invention will be described.

It should be noted that the appearance of the second embodiment is the same as that of the first embodiment, the difference lies in the structure of the first biaxial hinge unit and the second biaxial hinge unit are different, therefore, in the second embodiment, The symbol 410 for the first biaxial hinge unit and the symbol 420 for the second biaxial hinge unit.

6 is a schematic structural view of a first biaxial hinge unit disposed at one end of a flip-type portable terminal according to a second embodiment of the present invention.

The biaxial hinge unit 410 includes a first hinge shaft 412a integrally formed with a first hinge arm 411a for fixedly combining with one side end of the upper cover portion 100 and a first hinge axis 412a integrally formed for fixedly combining with one side end of the main body portion 200 . The second hinge axis 412b of the second hinge arm 412b is parallel to the first hinge axis 412a. Moreover, the outer circumference of the first hinge shaft 412a forms a first gear 414a interlocked with the first hinge shaft 412a, the outer circumference of the second hinge shaft 412b forms a second gear 414b interlocked with the second hinge shaft 412b, and the second gear 414b meshes with the first gear 414a.

In addition, the first double-axis hinge unit 410 further includes a first housing 413 for accommodating the first hinge shaft 412a and the second hinge shaft 412b. Moreover, the first housing 413 is formed with a first opening 413a and a second opening 413b on one side of the housing adjacent to the first and second hinge arms 411a, 411b, so that the first hinge shaft 412a and the second hinge shaft 412b The first hinge arm 411a and the second hinge arm 411b are integrally formed through the first opening portion 413a and the second opening portion 413b respectively. The first opening 413a and the second opening 413b can also function to support the first and second hinge shafts 412a and 412b.

In order to stably support the first and second hinge shafts 412a and 412b, a first bracket 415 is provided at the ends of the first and second hinge shafts 412a, and the first bracket 415 is penetrated by the first hinge shaft 412a and the second hinge shaft 412a. The hinge shaft 412b supports the first hinge shaft 412a and the second hinge shaft 412b. Thus, the first hinge axis 412a and the second hinge axis 412b can maintain a predetermined distance.

In addition, the first bracket 415 can be fixed on the inner surface of the housing 413, and has two holes for passing through the first and second hinge shafts 412a and 412b respectively, so that the first and second hinge shafts 412a and 412b is rotatably supported.

FIG. 7 is a schematic structural view of a second biaxial hinge unit disposed at one side and the other end of the flip-type portable terminal according to the second embodiment of the present invention.

As shown in FIG. 7 , the second biaxial hinge unit 420 includes a third hinge shaft 412 a integrally formed with a third hinge arm 421 a fixedly combined with the other end of one side of the upper cover 100 and a third hinge axis 412 a integrally formed with the other end of one side of the upper cover 100 . The fourth hinge axis 422b of the fourth hinge arm 421b at the other end of one side of the main body 200 is parallel to the fourth hinge axis 422a. Meanwhile, the first hinge axis 412a is on the same axis as the third hinge axis 422a, and the second hinge axis 412b is on the same axis as the fourth hinge axis 422b. Moreover, the outer periphery of the third hinge shaft 422a forms a third gear 424a which is interlocked with the third hinge shaft 422a. The fourth gear 424b linked by the four hinge shafts 422b, the fourth gear is integrally formed with the second cam 425b corresponding to the third gear 424a, the formation direction and shape of the first cam 425a and the second cam 425b are the same, and the fourth gear 424b meshes with the third gear 424a.

Moreover, the second biaxial hinge unit 420 further includes: a sliding piece 426 penetrating through the third hinge axis 422a and the fourth hinge axis 422b and facing the first cam 425a and the second cam 425b, the sliding piece 426 and the second cam 425b The facing surfaces of the first and second cams 425a, 425b have cam surfaces corresponding to the first and second cams 425a, 425b; the side of the slider 426 that does not form the cam surfaces is provided with an elastic member 427, used to provide elastic force to the slider 426; the second bracket 428 passing through the third hinge shaft 422a and the fourth hinge shaft 422b and supporting the elastic member 427, used to support the third hinge shaft 422a and the second hinge shaft 422a Four hinge axes 422b, so that the first hinge axis 412a and the second hinge axis 412b maintain a predetermined distance. Here, the elastic component 427 may be two compression springs respectively covering the third hinge axis 422a and the fourth hinge axis 422b.

In addition, the second biaxial hinge unit 420 also includes a second housing 423 for accommodating the third hinge shaft 422a and the fourth hinge shaft 422b, the third and fourth gears 424a, 424b, the elastic member 427 and the second Bracket 428. Moreover, the second housing 423 is formed with a third opening 423a and a fourth opening 423b on one side adjacent to the third and fourth hinge arms 421a, 421b, so that the third hinge shaft 422a and the fourth hinge shaft 422b pass through respectively. The third opening 423a and the fourth opening 423b are integrally formed with the third hinge arm 421a and the fourth hinge arm 421b respectively. The third opening 413a and the fourth opening 413b can also function to support the third and fourth hinge shafts 422a and 422b.

Moreover, the second biaxial hinge unit 420 further includes a through portion 429 formed on a side of the third gear 424a and the fourth gear 424b where the first cam 425a and the second cam 425b are not formed, for the FPCB to pass through. In addition, the second housing 423 forms an upper through-hole 429a and a lower through-hole 429b on the upper side and the lower side of the through-part 429, respectively, so as to allow the FPCB to pass through and connect to the PCB housed in the upper cover. and the PCB housed in the main body. However, the through portion 429 may be formed at any position of the biaxial hinge device without affecting the operation of the second biaxial hinge unit.

Moreover, the distance between the first hinge axis 412a and the second hinge axis 412b is the same as the distance between the third hinge axis 422a and the fourth hinge axis 422b, so that the upper cover part 100 is formed by the first hinge axis 412a and the third hinge axis 422a. Rotate around the axis of the second hinge shaft 412b and the fourth hinge shaft 422b to make the main body 200 rotate around the axis formed by the second hinge shaft 412b and the fourth hinge shaft 422b.

Moreover, since the sliding member 426 passes through the third and fourth hinge shafts 422a and 422b, it can only slide along the lengthwise direction of the axes of the third and fourth hinge shafts 422a and 422b.

Moreover, the second bracket 428 can be fixed on the inner surface of the housing 413, and has two holes for passing through the third and fourth hinge shafts 422a and 422b respectively, so that the third and fourth hinge shafts 422a, 422b 422b is rotatably supported.

As can be seen from the above, the difference between the second embodiment and the first embodiment is only that the through part is not formed in the first biaxial hinge unit, but is formed in the second biaxial hinge unit, and the clamshell type portable is a terminal opening. The closing action is similar, so the opening and closing action of the flip-type portable terminal in the second embodiment will not be described here.

As mentioned above, according to the functions of the components in the biaxial hinge device, the utility model can be respectively arranged at both ends of one side of the flip-type portable terminal, thereby reducing the space for arranging the biaxial hinge device.

Above, in the detailed description of the present invention, although specific embodiments have been described, it should be understood by those skilled in the art that various changes can be made without departing from the scope of the present invention.

For example: in the specific embodiments of the present invention, an example is given in which the first, second, third, and fourth hinge arms are respectively fixedly combined with the upper cover portion and the main body portion. However, as shown in FIG. 8 , the biaxial hinge device of the present invention can also be applied to the upper cover part 100 and the two ends of the main body part 200 to form a first biaxial hinge unit and a second biaxial hinge unit. Concave parts 140, 150, 240, 250, at this time, the ends 510, 520, 530, 540 of the hinge shafts of the biaxial hinge device can be passed through the shell of the biaxial hinge device and connected with the upper cover part 100 and the main body part 200 Phase fixed combination. In this way, the hinge connection between the upper cover part 100 and the main body part 200 can be more stable.

In addition, the through portion of the above-mentioned embodiment may be formed at any position of the biaxial hinge device without affecting the operation of the biaxial hinge device.

Claims (9)

1. biaxial hinge device, described biaxial hinge device is applicable to the flip-type portable terminal with upper cover part and main part, it is characterized in that comprising: hinge connects the first biaxial hinge unit of a side end of described upper cover part and described main part; Hinge connects the second biaxial hinge unit of the other end of a side of described upper cover part and described main part.

2. biaxial hinge device according to claim 1 is characterized in that the described first biaxial hinge unit comprises: first hinge axis; First hinge arms integrally formed with described first hinge axis is to be used for the side end secure bond with described upper cover part; Second hinge axis that is parallel to described first hinge axis; Second hinge arms integrally formed with described second hinge axis, being used for the end secure bond with a side of described main part,

The described second biaxial hinge unit comprises: the 3rd hinge axis; Three hinge arms integrally formed with described the 3rd hinge axis is to be used for the other end secure bond with a side of described upper cover part; The 4th hinge axis that is parallel to described the 3rd hinge axis; Four hinge arms integrally formed with described the 4th hinge axis is to be used for the other end secure bond with a side of described main part.

3. biaxial hinge device according to claim 2, the periphery that it is characterized in that described first hinge axis is provided with first gear with the described first hinge axis interlock, the periphery of described second hinge axis is provided with second gear with the described second hinge axis interlock, and the periphery of described the 3rd hinge axis is formed with the 3rd gear with described the 3rd hinge axis interlock; The periphery of described the 4th hinge axis is formed with second gear with described the 4th hinge axis interlock,

Described first gear and described second gears engaged, described the 3rd gear and described the 4th gears engaged.

4. biaxial hinge device according to claim 3, it is characterized in that the described first biaxial hinge unit also comprises the end that is arranged at described first hinge axis and described second hinge axis and first support that is through with described first hinge axis and described second hinge axis, to be used to supporting described first hinge axis and described second hinge axis, make described first hinge axis and described second hinge axis keep preset space length.

5. biaxial hinge device according to claim 4 is characterized in that the described first biaxial hinge unit also comprises the breakthrough part that is formed between described first support and described first gear and described second gear, to be used to that flexible PCB is passed through.

6. biaxial hinge device according to claim 3 is characterized in that the described second biaxial hinge unit also comprises: first cam that is integrally formed at a side of described the 3rd gear; Second cam of a side that is integrally formed at described the 4th gear in the same manner with the formation direction and the shape of described first cam; Face the sliding part that is provided with mutually with described first cam and described second cam, described sliding part is through with described first hinge axis and described second hinge axis,

This sliding part has and described first cam and the corresponding cam surface of described second cam with one side that described first cam and described second cam are faced mutually.

7. biaxial hinge device according to claim 6 is characterized in that the described second biaxial hinge unit also comprises: be arranged at the elastomeric element of a side that does not form described cam surface of described sliding part, to be used for providing elastic force to sliding part; Be through with second support of described the 3rd hinge axis and described the 4th hinge axis, to be used to support described elastomeric element and described three hinge axis and described the 4th hinge axis.

8. biaxial hinge device according to claim 7, it is characterized in that the described second biaxial hinge unit also comprises the breakthrough part of a side that does not form described first cam and described second cam that is formed at described the 3rd gear and described the 4th gear, to be used to that flexible PCB is passed through.

9. flip-type portable terminal, this flip-type portable terminal comprises that upper cover part is connected the biaxial hinge device of described upper cover part and described main part with main part and hinge, it is characterized in that described biaxial hinge device is as the described biaxial hinge device of claim 1 to 8.

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